CN111568333A - Spray arm assembly and dish washing machine - Google Patents

Abstract

The invention relates to a spray arm assembly and a dish washing machine. The first nozzle and the second nozzle spray water in different directions, so that the spray arm can be driven to rotate in different directions. Specifically, when the first nozzle sprays water, the spray arm rotates in a first direction, and when the second nozzle sprays water, the spray arm rotates in a second direction. The spray arm is also internally provided with a water distribution assembly, and the water distribution assembly is movably connected with the spray arm, so that the water distribution assembly has a first position and a second position. When the spraying arm is used, the water diversion assembly is adjusted to a proper position according to requirements, so that the spraying arm rotates according to a target direction. In other words, the user can adjust the rotation angle of the spray arm according to the tableware placing angle, and the cleaning effect is improved.

Description

Spray arm assembly and dish washing machine

Technical Field

The invention relates to the technical field of domestic appliances, in particular to a spray arm assembly and a dish washing machine.

Background

With the improvement of living standard of people, dish washing machines are gradually popularized. When the dish washer is used for washing tableware, the spraying arm is mainly used for spraying water into the inner cavity of the dish washer so as to wash away stains on the tableware. And the tableware is generally placed in the inner cavity of the dish washing machine by a user, and the placing position and the placing angle cannot be accurately controlled. And spray arm rotation direction is single in general dish washer, can only follow the rotatory water spray of a direction, and when the tableware locating place or put the angle improper, the dead angle of easily existing washing, unable with the tableware sanitization, the cleaning performance is relatively poor.

Disclosure of Invention

Based on this, it is necessary to provide a spray arm assembly and a dishwasher to improve a washing effect.

A spray arm component comprises a spray arm, wherein a first cavity and a second cavity which are mutually separated are arranged in the spray arm, a first nozzle, a second nozzle and a water inlet are arranged on the spray arm, the spray arm can be rotationally connected with a body of a dish washing machine, a water distribution component is arranged at the water inlet, the water distribution component is movably connected with the spray arm, when the water distribution component moves to a first position, the water inlet is communicated with the first nozzle through the first cavity, when the water distribution component moves to a second position, the water inlet is communicated with the second nozzle through the second cavity, the water spraying direction of the first nozzle is different from the water spraying direction of the second nozzle, when water in the first cavity is sprayed out from the first nozzle, thrust rotating along the first direction can be applied to the spray arm, when water in the second cavity is sprayed out from the second nozzle, thrust rotating along the second direction can be applied to the spray arm, the first direction is opposite to the second direction.

The spray arm assembly comprises a first cavity and a second cavity, and a first nozzle and a second nozzle which are communicated with the first cavity and the second cavity are arranged on the spray arm respectively. The first nozzle and the second nozzle spray water in different directions, so that the spray arm can be driven to rotate in different directions. Specifically, when the first nozzle sprays water, the spray arm rotates in a first direction, and when the second nozzle sprays water, the spray arm rotates in a second direction. Based on the water diversion assembly and the spray arm are movably connected, the water diversion assembly is enabled to have a first position and a second position. When the spraying arm is used, the water diversion assembly is adjusted to a proper position according to requirements, so that the spraying arm rotates according to a target direction. In other words, the user can adjust the rotation angle of the spray arm according to the tableware placing angle, and the cleaning effect is improved.

In one embodiment, a dividing member is disposed in the spray arm and is used for dividing a space in the spray arm into the first chamber and the second chamber, the dividing member divides the water inlet into a first inlet and a second inlet through the water inlet, the water diversion assembly includes a first sealing plug and a second sealing plug which are movably connected with the spray arm, the movement direction of the water diversion assembly is the axial direction of the water inlet, the first sealing plug and the second sealing plug are respectively arranged corresponding to the first inlet and the second inlet, when the water diversion assembly moves to the first position, the first sealing plug and the first inlet are opened in a staggered manner, the second sealing plug blocks the second inlet, when the water diversion assembly moves to the second position, the second sealing plug and the second inlet are opened in a staggered manner, the first sealing plug blocks the first inlet.

In one embodiment, a fixing sleeve is arranged at the water inlet, the end surface of the bottom end of the fixing sleeve is abutted against the top surface of the dividing piece, the part of the fixing sleeve close to the dividing piece is a sealing section, the first sealing plug is arranged at the first inlet, the second sealing plug is arranged at the second inlet, the first sealing plug and the second sealing plug are connected in a staggered manner in the vertical direction, when the water distribution component moves upwards to the first position, the bottom surface of the first sealing plug is positioned above the top surface of the dividing part, the second sealing plug is tightly propped between the dividing part and the sealing section, when the water distribution assembly moves downwards to the second position, the top surface of the second sealing plug is positioned below the end surface of the bottom end of the fixed sleeve, and the first sealing plug is tightly propped between the dividing part and the sealing section.

In one embodiment, the plane of the bottom surface of the first sealing plug is located between the top surface of the second sealing plug and the bottom surface of the second sealing plug, and the plane of the top surface of the second sealing plug is located between the top surface of the first sealing plug and the bottom surface of the first sealing plug;

or the bottom surface of the first sealing plug and the top surface of the second sealing plug are located in the same plane.

In one embodiment, the first sealing plug and/or the second sealing plug are cylindrical structures with semicircular cross sections.

In one embodiment, the first sealing plug comprises a first arc-shaped side wall, a semicircular top wall and a rectangular side wall, the rectangular side wall is arranged along the radial direction of the first arc-shaped side wall, two ends of the rectangular side wall are connected with two ends of the first arc-shaped side wall, the semicircular top wall covers the top ends of the rectangular side wall and the first arc-shaped side wall, the second sealing plug comprises a second arc-shaped side wall and a semicircular bottom wall arranged at the bottom end of the second arc-shaped side wall, and the semicircular top wall is connected with the semicircular bottom wall; when the water distribution assembly moves upwards to the first position, the rectangular side wall is located above the dividing piece, so that water entering from the water inlet can enter the first cavity from a gap between the rectangular side wall and the dividing piece, the outer side surface of the second arc-shaped side wall is tightly propped against the sealing section, the end surfaces at two ends of the second arc-shaped side wall and the radial surface of the semicircular bottom wall are tightly propped against the dividing piece, and the second inlet is blocked; when the water sealing assembly moves downwards to the second position, the top surface of the second arc-shaped side wall is located below the fixed sleeve, the second arc-shaped side wall and the fixed sleeve are arranged at intervals, so that water entering from the water inlet can enter the second cavity from a gap between the second arc-shaped side wall and the fixed sleeve, the first arc-shaped side wall is tightly abutted to the sealing section, and the rectangular side wall is tightly abutted to the partition piece to block the first inlet.

In one embodiment, the water diversion assembly further includes an intermediate connection member, the first sealing plug is connected to the top end of the intermediate connection member, the second sealing plug is connected to the bottom end of the intermediate connection member, an insertion groove into which the partition member is inserted is formed in the intermediate connection member, an opening of the insertion groove is located on the bottom surface of the intermediate connection member, and a bottom wall of the insertion groove is located above the bottom surface of the first sealing plug.

In one embodiment, the middle connecting piece is a cylindrical tube with an opening at the bottom, a limiting tube with an opening at the top end is arranged in the spray arm, the limiting tube divides the dividing piece into two parts, the cylindrical tube is sleeved outside the limiting tube, and an elastic resetting piece is arranged between the top wall of the cylindrical tube and the bottom wall of the limiting tube.

In one embodiment, the spraying device further comprises elastic resetting pieces distributed along the longitudinal direction, wherein the elastic resetting pieces are supported between the water diversion assembly and the spraying arm and provide a resetting force for the water diversion assembly to move upwards along the longitudinal direction.

In one embodiment, the fixing sleeve further comprises a connecting pipe and a knob, the knob is sleeved outside the fixing sleeve and can rotate relative to the fixing sleeve, the connecting pipe is sleeved outside the knob, and the connecting pipe is connected with the knob.

In one embodiment, the spray arm comprises an upper spray arm cover and a lower spray arm cover which are connected with each other, an upper rib is arranged on the inner wall of the upper spray arm cover, a lower rib is arranged on the inner wall of the lower spray arm corresponding to the upper rib, the upper rib and the lower rib are abutted to form the partition, and the first nozzle, the second nozzle and the water inlet are arranged on the upper spray arm cover.

A dishwasher, comprising the spray arm assembly.

The scheme provides a dish washing machine, thereby adopt the spray arm subassembly in any above-mentioned embodiment for in the use, the user can put the angle according to the tableware, the adjustment divide the position of subassembly, thereby make the spray arm rotate according to the required angle of user, improve the cleaning performance.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic structural view of a spray arm assembly according to the present embodiment;

FIG. 2 is a cross-sectional view of the spray arm assembly of FIG. 1;

FIG. 3 is a cross-sectional view of the spray arm assembly from another perspective;

FIG. 4 is a cross-sectional view of the spray arm assembly with the water diversion assembly in a first position;

FIG. 5 is an enlarged view of the location of the water diversion assembly in the cross-sectional view of FIG. 4;

FIG. 6 is a cross-sectional view of the spray arm assembly with the water diversion assembly in a second position;

FIG. 7 is an enlarged view of the location of the water diversion assembly in the cross-sectional view of FIG. 6;

FIG. 8 is a schematic structural diagram of the water diversion assembly according to the present embodiment;

FIG. 9 is a schematic view of the structure of the water diversion assembly with the bottom facing upward;

FIG. 10 is a schematic view of the upper spray arm cover of the spray arm assembly of FIG. 1;

fig. 11 is a schematic view of a lower spray arm cap of the spray arm assembly shown in fig. 1.

Description of reference numerals:

10. a spray arm assembly; 11. a spray arm; 111. an upper spray arm cover; 1111. a first nozzle; 1112. a second nozzle; 1113. a water inlet; 1114. a first inlet; 1115. a second inlet; 112. a lower spray arm cover; 113. cutting the parts; 1131. rib feeding; 1132. arranging ribs; 114. a first chamber; 115. a second chamber; 116. a limiting cylinder; 12. a water diversion assembly; 121. a first sealing plug; 1211. a first arcuate sidewall; 1212. a semicircular top wall; 1213. a rectangular side wall; 122. a second sealing plug; 1221. a second arcuate sidewall; 1222. a semicircular bottom wall; 123. an intermediate connecting member; 1231. a slot; 13. fixing a sleeve; 14. an elastic reset member; 15. a connecting pipe; 16. a knob; 20. a first direction; 30. a second direction.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

As shown in fig. 1 to 3, in one embodiment, a spray arm assembly 10 is provided, which includes a spray arm 11, wherein a first chamber 114 and a second chamber 115 isolated from each other are provided in the spray arm 11. The spray arm 11 is provided with a first spray nozzle 1111, a second spray nozzle 1112 and a water inlet 1113, the spray arm 11 can be rotatably connected with the body of the dishwasher, the spray direction of the first spray nozzle 1111 is different from the spray direction of the second spray nozzle 1112, and when the water in the first chamber 114 is sprayed out from the first spray nozzle 1111, the water can apply a thrust force rotating along a first direction 20 to the spray arm 11; when the water in the second chamber 115 is sprayed from the second spray ports 1112, a thrust force rotating in a second direction 30 can be applied to the spray arm 11, and the first direction 20 is opposite to the second direction 30.

Further, as shown in fig. 3, a water diversion assembly 12 is arranged at the water inlet 1113, and the water diversion assembly 12 is movably connected with the spray arm 11. When the water diversion assembly 12 is moved to a first position, the water inlet 1113 is in communication with the first spout 1111 via the first chamber 114, and when the water diversion assembly 12 is moved to a second position, the water inlet 1113 is in communication with the second spout 1112 via the second chamber 115.

The water diversion assembly 12 is movably connected with the spray arm 11, so that the water diversion assembly 12 has a first position and a second position. In use, the water diversion assembly 12 is adjusted to a proper position as required, so that the spray arm 11 rotates according to a target direction. In other words, the user can adjust the rotation angle of the spray arm 11 according to the placement angle of the dishes, thereby improving the washing effect.

Further, as shown in fig. 2, 3, 10 and 11, in one embodiment, a partition 113 is provided in the spray arm 11 to divide a space in the spray arm 11 into the first chamber 114 and the second chamber 115.

Specifically, as shown in fig. 10 and 11, the spray arm 11 includes an upper spray arm cover 111 and a lower spray arm cover 112 connected to each other. As shown in fig. 10, the inner wall of the upper spray arm cover 111 is provided with an upper rib 1131, and the first spray nozzle 1111, the second spray nozzle 1112 and the water inlet 1113 are disposed on the upper spray arm cover 111. As shown in fig. 11, a lower rib 1132 is provided on the inner wall of the lower spray arm 11 at a position corresponding to the upper rib 1131. When the upper spray arm cover 111 and the lower spray arm cover 112 are assembled together, the upper ribs 1131 abut against the lower ribs 1132 to form the partitions 113.

Alternatively, the spray arm 11 may be an integrally molded structure, and the structure having the first chamber 114 and the second chamber 115 may be integrally molded and cast by using a mold.

Further, the dividing member 113 divides the water inlet 1113 into a first inlet 1114 and a second inlet 1115 through the water inlet 1113. As shown in fig. 3, the water diversion assembly 12 includes a first sealing plug 121 and a second sealing plug 122, both of which are movably connected to the spray arm 11, and the moving direction of the water diversion assembly 12 is axial to the water inlet 113, that is, the water diversion assembly 12 can move back and forth in the water inlet direction of the water inlet 113, so as to realize switching between the first position and the second position. The first and second sealing plugs 121, 122 are disposed corresponding to the first and second inlets 1114, 1115, respectively. The control of the opening and closing of the first inlet 1114 and the second inlet 1115 is achieved by moving the first sealing plug 121 and the second sealing plug 122 in the axial direction of the water inlet 1113.

Specifically, as shown in fig. 4 and 5, when the water diversion assembly 12 moves to the first position, the first sealing plug 121 is opened by being misaligned with the first inlet 1114, water enters the first chamber 114, and water in the spray arm 11 is sprayed out of the first spray opening 1111; the second sealing plug 122 blocks the second inlet 1115 so that the spray arm 11 rotates in the first direction 20. As shown in fig. 6 and 7, when the water diversion assembly 12 moves to the second position, the second sealing plug 122 is displaced from the second inlet 1115, the water enters the second chamber 115, and the water in the spray arm 11 is sprayed out of the first spray opening 1111; the first sealing plug 121 blocks the first inlet 1114 so that the spray arm 11 rotates in the second direction 30.

In particular, the moving process of the first sealing plug 121 and the second sealing plug 122 can be controlled by a motor and a transmission mechanism. Or other driving means may be used to drive the first sealing plug 121 and the second sealing plug 122 to move. Alternatively, as shown in fig. 3 to 7, an elastic restoring member 14 is disposed between the first sealing plug 121 and/or the second sealing plug 122 and the spray arm 11, and the elastic restoring member 14 is supported between the first sealing plug 121 and/or the second sealing plug 122 and the spray arm 11 to provide a restoring force for the water diversion assembly 12 to move upward in the longitudinal direction. Here, the upward direction means a direction opposite to the downward direction when the water inflow direction is downward at the angle shown in fig. 3 to 7.

When the water inlet 1113 is filled, the water flow applies a downward acting force F to the first sealing plug 121 and the second sealing plug 122, the restoring force of the elastic restoring member 14 is overcome, and when the acting force F provided by the water flow is greater than a predetermined value M1, the first sealing plug 121 and/or the second sealing plug 122 move downwards to the first position, and the first chamber 114 is communicated with the entering water; when the force F provided by the water flow is further increased to be larger than the predetermined value M2, the first sealing plug 121 and/or the second sealing plug 122 move down to the second position, and the second chamber 115 is conducted into the water. When the spray arm assembly 10 is not filled with water, the first sealing plug 121 and the second sealing plug 122 are reset under the action of the elastic reset force to wait for the next use. The acting force provided by the specific water flow is related to the water pressure provided by the spray arm 11 in the dishwasher, so that the position of the water diversion component 12 can be controlled directly by controlling the water pressure, and the rotation direction of the spray arm 11 is accurately controlled.

Furthermore, there may be a linkage between the movement of the first sealing plug 121 and the movement of the second sealing plug 122, for example, the first sealing plug 121 is connected to the second sealing plug 122, and when one is driven to move, the other is also driven to move synchronously. Alternatively, the first sealing plug 121 and the second sealing plug 122 may move independently and be driven by respective driving members.

Further, in an embodiment, as shown in fig. 3, a fixing sleeve 13 is disposed at the water inlet 1113, and a bottom end surface of the fixing sleeve 13 abuts against a top surface of the partition 113, so that when only one of the first inlet 1114 and the second inlet 1115 is in a conducting state, water entering from the fixing sleeve 13 can only enter the corresponding chamber from the conducting inlet, and then the corresponding nozzle can only spray water, and water cannot enter the other chamber.

Further, as shown in fig. 3 to 7, the portion of the fixing sleeve 13 close to the dividing member 113 is a sealing section, the first sealing plug 121 is disposed at the first inlet 1114, and the second sealing plug 122 is disposed at the second inlet 1115. The first sealing plug 121 and the second sealing plug 122 are connected in a vertically staggered manner, so that the first sealing plug 121 and the second sealing plug 122 move up and down synchronously, and the elastic restoring member 14 acts on the first sealing plug 121 and the second sealing plug 122 synchronously.

As shown in fig. 4 and 5, when the water diversion assembly 12 is moved up to the first position, the bottom surface of the first sealing plug 121 is located above the top surface of the partition 113, and thus a gap exists between the first sealing plug 121 and the partition 113, from which gap water entering from the fixing sleeve 13 can enter the first chamber 114. At this time, the second sealing plug 122 is tightly pressed between the dividing member 113 and the sealing section, and only the first nozzle 1111 sprays water, so that the spray arm 11 rotates along the first direction 20. Here, the upward movement refers to the upward movement of the water diversion assembly 12 when the water diversion assembly is in the second position.

As shown in fig. 6 and 7, when the water diversion assembly 12 is moved down to the second position, the top surface of the second sealing plug 122 is located below the bottom end surface of the fixed sleeve 13, and there is a gap between the second sealing plug 122 and the bottom end surface of the fixed sleeve 13, from which gap water entering from the fixed sleeve 13 can enter the second chamber 115. At this time, the first sealing plug 121 is pressed between the partition 113 and the sealing section. In other words, only the second nozzle 1112 can spray water, and the spray arm 11 rotates in the second direction 30. Here, the downward movement refers to the downward movement of the water diversion assembly 12 relative to the first position.

Specifically, the first sealing plug 121 and the second sealing plug 122 are connected in a vertically offset manner, and the following two ways may be adopted.

First, the plane of the bottom surface of the first sealing plug 121 is located between the top surface of the second sealing plug 122 and the bottom surface of the second sealing plug 122, and the plane of the top surface of the second sealing plug 122 is located between the top surface of the first sealing plug 121 and the bottom surface of the first sealing plug 121. In other words, the first sealing plug 121 and the second sealing plug 122 have an overlapping portion in the longitudinal direction, but also a staggered portion.

Second, the bottom surface of the first sealing plug 121 and the top surface of the second sealing plug 122 are located in the same plane. In other words, the first sealing plug 121 is located above the second sealing plug 122. As shown in fig. 4 and 5, when the water diversion assembly 12 moves to a position where the bottom surface of the first sealing plug 121 is located above the top surface of the partition 113, the top surface of the second sealing plug 122 is located above both the top surface of the partition 113 and the bottom end surface of the fixing sleeve 13, and the second sealing plug 122 is tightly and sealingly abutted between the fixing sleeve 13 and the partition 113. As shown in fig. 6 and 7, when the water diversion assembly 12 moves to a position where the top surface of the second sealing plug 122 is located below the bottom end surface of the fixing sleeve 13, the bottom surface of the first sealing plug 121 is located below the dividing member 113, and the first sealing plug 121 is tightly sealed and abutted between the fixing sleeve 13 and the dividing member 113.

More specifically, in one embodiment, the first sealing plug 121 and/or the second sealing plug 122 are cylindrical structures with a semicircular cross section. When the first sealing plug 121 or the second sealing plug 122 abuts against between the fixing sleeve 13 and the dividing member 113, the arc-shaped outer side surface of the columnar structure abuts against the fixing sleeve 13, and the plane of the columnar structure abuts against the dividing member 113. The bottom surface of the first sealing plug 121 is a semicircular surface which defines the water inlet direction of the water inlet 1113 to be longitudinal when the water diversion assembly 12 is installed at the water inlet 1113, i.e. the lowest position of the first sealing plug 121 is located when the spray arm 11 is installed at the angle shown in fig. 3. The top surface of the second sealing plug 122 is also at the aforementioned angle, and the uppermost semicircular surface of the second sealing plug 122.

Alternatively, in one embodiment, as shown in fig. 8 and 9, the first sealing plug 121 includes a first arc-shaped sidewall 1211, a semi-circular top wall 1212 and a rectangular sidewall 1213, the rectangular sidewall 1213 is disposed along a radial direction of the first arc-shaped sidewall 1211, both ends of the rectangular sidewall 1213 are connected to both ends of the first arc-shaped sidewall 1211, and the semi-circular top wall 1212 covers the rectangular sidewall 1213 and the top end of the first arc-shaped sidewall 1211. The second sealing plug 122 includes a second arc-shaped sidewall 1221 and a semicircular bottom wall 1222 disposed at a bottom end of the second arc-shaped sidewall 1221, and the semicircular top wall 1212 is connected to the semicircular bottom wall 1222.

At this time, the top surface of the first sealing plug 121 is the top surface of the semicircular top wall 1212, and the bottom surface of the first sealing plug 121 is the bottom surface of the rectangular sidewall 1213; the top surface of the second sealing plug 122 is the top surface of the second curved sidewall 1221, and the bottom surface of the second sealing plug 122 is the bottom surface of the semicircular bottom wall 1222.

When the water diversion assembly 12 is moved to the first position, as shown in fig. 4 and 5, the rectangular side wall 1213 is located above the partition 113, and the rectangular side wall 1213 of the first sealing plug 121 is spaced apart from the partition 113 with a gap therebetween such that water entering from the water inlet 1113 can enter the first chamber 114 from the gap therebetween. The outer side surface of the second arc-shaped side wall 1221 of the second sealing plug 122 abuts against the sealing section of the fixing sleeve 13, and the end surfaces of the two ends of the second arc-shaped side wall 1221 and the radial surface of the semicircular bottom wall 1222 abut against the dividing member 113, so as to block the second inlet 1115.

When the water diversion assembly 12 is moved to the second position, as shown in fig. 6 and 7, the top surface of the second curved sidewall 1221 is positioned below the retainer sleeve 13, and the top surface of the second curved sidewall 1221 of the second sealing plug 122 is spaced from the retainer sleeve 13 with a gap therebetween that allows water to enter the second chamber 115. The first arc sidewall 1211 of the first sealing plug 121 abuts against the sealing section of the fixing sleeve 13, the outer peripheral surface of the semicircular top wall 1212 abuts against the fixing sleeve 13, and the rectangular sidewall 1213 abuts against the dividing member 113, so as to block the first inlet 1114.

Further, in one embodiment, as shown in fig. 8 and 9, the water diversion assembly 12 further includes an intermediate connector 123, the first sealing plug 121 is connected to a top end of the intermediate connector 123, and the second sealing plug 122 is connected to a bottom end of the intermediate connector 123. Specifically, when the first sealing plug 121 includes the semicircular top wall 1212 and the second sealing plug 122 includes the semicircular bottom wall 1222, the intermediate connector 123 is connected between the semicircular top wall 1212 and the semicircular bottom wall 1222.

The middle connecting member 123 is provided with an insertion groove 1231 for inserting the dividing member 113, and the dividing member 113 moves in the insertion groove 1231 in the process of moving up and down of the water diversion assembly 12. The opening of the insertion groove 1231 is located on the bottom surface of the middle connector 123, and the bottom wall of the insertion groove 1231 is located above the bottom surface of the first sealing plug 121. Thereby ensuring that the water diversion assembly 12 can be moved down to a position where the bottom surface of the first sealing plug 121 is below the top surface of the partition 113.

More specifically, in one embodiment, as shown in fig. 8 and 9, the middle connecting member 123 is a cylindrical tube with an open bottom, as shown in fig. 3 to 7, a limiting tube 116 with an open top end is disposed in the spray arm 11, the limiting tube 116 divides the dividing member 113 into two parts, and the dividing member 113 is connected with the limiting tube 116 to divide the space in the spray arm 11 into the first chamber 114 and the second chamber 115. Specifically, when the spray arm 11 includes the lower spray arm cover 112, the limiting cylinder 116 is disposed on the lower spray arm cover 112. The cylinder is sleeved outside the limiting cylinder 116, and an elastic resetting piece 14 is arranged between the top wall of the cylinder and the bottom wall of the limiting cylinder 116. After the water pressure is removed, the elastic reset piece 14 pushes the cylinder to move away from the limiting cylinder 116 for resetting for the next use.

Further, in one embodiment, the cylindrical barrel and the limiting barrel 116 are sealed in a sleeved mode, and the sheets can move up and down relatively. Thus, as shown in fig. 4, when the water diversion assembly 12 is in the first position, even though water entering from the water inlet 1113 can enter the cylindrical barrel and the limiting barrel 116 from the slot 1231, the water will not enter the second chamber 115.

As shown in fig. 1 to 7, in one embodiment, the spray arm assembly 10 further includes a connecting tube 15 and a knob 16, the knob 16 is sleeved outside the fixing sleeve 13, the knob 16 can rotate relative to the fixing sleeve 13, the connecting tube 15 is sleeved outside the knob 16, and the connecting tube 15 is connected to the knob 16. So that the spray arm 11 can be turned in relation to the connection pipe 15, in other words can be rotated about the position of the water inlet 1113.

Further, in another embodiment, a dishwasher is provided, comprising the spray arm assembly 10 described above.

The scheme provides a dish washing machine, so that the spray arm assembly 10 in any embodiment is adopted, a user can adjust the position of the water distribution assembly 12 according to the tableware placing angle in the use process, the spray arm 11 rotates according to the angle required by the user, and the washing effect is improved.

In particular, the outer wall of the knob 16 may be connected to the body of the dishwasher such that the spray arm 11 can be rotated relative to the body of the dishwasher.

In the description of the present invention, it is to be understood that the terms "central," "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 are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (12)

1. The utility model provides a spray arm subassembly, a serial communication port, including the spray arm, be equipped with the first cavity and the second cavity that cut off each other in the spray arm, be equipped with first spout, second spout and water inlet on the spray arm, the spray arm can rotate with the body of dish washer and be connected, water inlet department is equipped with the subassembly that divides water, divide water subassembly with spray arm swing joint works as when the subassembly that divides water moves first position, the water inlet passes through first cavity with first spout switches on, works as when the subassembly that divides water moves the second position, the water inlet passes through the second cavity with the second spout switches on, the water spray direction of first spout with the water spray direction of second spout is different, water in the first cavity is followed can give during first spout blowout the spray arm applys along first direction pivoted thrust, water in the second cavity follow during second spout blowout can give the spray arm applys along second direction pivoted thrust A thrust force, the first direction being opposite to the second direction.

2. The spray arm assembly according to claim 1, wherein a partition is provided in the spray arm for dividing a space in the spray arm into the first chamber and the second chamber, the partition divides the water inlet into a first inlet and a second inlet through the water inlet, the water diversion assembly comprises a first sealing plug and a second sealing plug both movably connected with the spray arm, the water diversion assembly moves in an axial direction of the water inlet, the first sealing plug and the second sealing plug are respectively arranged corresponding to the first inlet and the second inlet, when the water diversion assembly moves to the first position, the first sealing plug and the first inlet are opened in a staggered manner, the second sealing plug blocks the second inlet, when the water diversion assembly moves to the second position, the second sealing plug and the second inlet are opened in a staggered manner, the first sealing plug blocks the first inlet.

3. The spray arm assembly of claim 2 wherein said water inlet is provided with a retaining sleeve, the end surface of the bottom end of the fixed sleeve is abutted against the top surface of the cutting part, the part of the fixed sleeve close to the cutting part is a sealing section, the first sealing plug is arranged at the first inlet, the second sealing plug is arranged at the second inlet, the first sealing plug and the second sealing plug are connected in a staggered manner in the vertical direction, when the water distribution component moves upwards to the first position, the bottom surface of the first sealing plug is positioned above the top surface of the dividing part, the second sealing plug is tightly propped between the dividing part and the sealing section, when the water distribution assembly moves downwards to the second position, the top surface of the second sealing plug is positioned below the end surface of the bottom end of the fixed sleeve, and the first sealing plug is tightly propped between the dividing part and the sealing section.

4. The spray arm assembly of claim 3 wherein the plane of the bottom surface of the first seal plug is located between the top surface of the second seal plug and the bottom surface of the second seal plug, and the plane of the top surface of the second seal plug is located between the top surface of the first seal plug and the bottom surface of the first seal plug;

or the bottom surface of the first sealing plug and the top surface of the second sealing plug are located in the same plane.

5. The spray arm assembly of claim 3, wherein the first and/or second sealing plugs are cylindrical structures having a semi-circular cross-section.

6. The spray arm assembly of claim 3, wherein the first sealing plug comprises a first curved side wall, a semicircular top wall and a rectangular side wall, the rectangular side wall is arranged along the radial direction of the first curved side wall, two ends of the rectangular side wall are connected with two ends of the first curved side wall, the semicircular top wall covers the top ends of the rectangular side wall and the first curved side wall, the second sealing plug comprises a second curved side wall and a semicircular bottom wall arranged at the bottom end of the second curved side wall, and the semicircular top wall is connected with the semicircular bottom wall; when the water distribution assembly moves upwards to the first position, the rectangular side wall is located above the dividing piece, so that water entering from the water inlet can enter the first cavity from a gap between the rectangular side wall and the dividing piece, the outer side surface of the second arc-shaped side wall is tightly propped against the sealing section, the end surfaces at two ends of the second arc-shaped side wall and the radial surface of the semicircular bottom wall are tightly propped against the dividing piece, and the second inlet is blocked; when the water sealing assembly moves downwards to the second position, the top surface of the second arc-shaped side wall is located below the fixed sleeve, the second arc-shaped side wall and the fixed sleeve are arranged at intervals, so that water entering from the water inlet can enter the second cavity from a gap between the second arc-shaped side wall and the fixed sleeve, the first arc-shaped side wall is tightly abutted to the sealing section, and the rectangular side wall is tightly abutted to the partition piece to block the first inlet.

7. The spray arm assembly according to any one of claims 3 to 6, wherein the water diversion assembly further comprises an intermediate connector, the first sealing plug is connected with the top end of the intermediate connector, the second sealing plug is connected with the bottom end of the intermediate connector, a slot for inserting the partition member is arranged on the intermediate connector, the opening of the slot is located on the bottom surface of the intermediate connector, and the bottom wall of the slot is located above the bottom surface of the first sealing plug.

8. The spray arm assembly of claim 7, wherein the intermediate connecting member is a cylindrical tube with an open bottom, a limiting tube with an open top is disposed in the spray arm, the limiting tube divides the dividing member into two parts, the cylindrical tube is sleeved outside the limiting tube, and an elastic restoring member is disposed between a top wall of the cylindrical tube and a bottom wall of the limiting tube.

9. The spray arm assembly of any one of claims 3 to 6, further comprising elastic restoring members distributed in the longitudinal direction, wherein the elastic restoring members are supported between the water diversion assembly and the spray arm to provide restoring force for the water diversion assembly to move upwards in the longitudinal direction.

10. The spray arm assembly of any one of claims 3 to 6 further comprising a connecting tube and a knob, said knob being sleeved outside said holster, said knob being rotatable relative to said holster, said connecting tube being sleeved outside said knob, said connecting tube being connected to said knob.

11. The spray arm assembly of any one of claims 2 to 6, wherein the spray arm comprises an upper spray arm cover and a lower spray arm cover which are connected with each other, an inner wall of the upper spray arm cover is provided with an upper rib, a position, corresponding to the upper rib, on an inner wall of the lower spray arm is provided with a lower rib, the upper rib is abutted with the lower rib to form the dividing piece, and the first nozzle, the second nozzle and the water inlet are arranged on the upper spray arm cover.

12. A dishwasher, comprising a spray arm assembly according to any one of claims 1 to 11.

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