CN217772260U - Spray arm assembly and cleaning machine - Google Patents

Abstract

The application discloses spray arm subassembly and cleaning machine, the spray arm subassembly includes: the main spray arm is arranged in a rotating mode around a first direction; the auxiliary spray arm is arranged on the main spray arm and is arranged along a second direction; the auxiliary spray arm rotates around the first direction along with the main spray arm, and meanwhile, the auxiliary spray arm rotates around the second direction intermittently, and the second direction is intersected with the first direction. When the main spray arm rotates around the first direction, water flow sprays through the rotating main spray arm to wash the surface of the object to be cleaned. Meanwhile, the auxiliary spray arm also intermittently rotates in the second direction and can generate jet water flow with changed angles, so that the auxiliary spray arm not only can continuously change the angles and generate the jet water flow with changed angles, but also can keep the jet water flow after the angles are changed at the continuous impact strength for a certain time, thereby fully reducing the washing dead angles and improving the washing efficiency.

Description

Spray arm assembly and cleaning machine

Technical Field

The application belongs to the technical field of household appliances, and particularly relates to a spray arm assembly and a cleaning machine.

Background

With the improvement of living standard of materials, a washing machine capable of freeing both hands is gradually becoming a standard for quality life. Compared with the traditional hand washing, the cleaning machine has the advantages of cleaning, sterilizing, saving water and labor and the like. The household cleaning machine generally adopts a spray type washing mode, and water flow is sprayed by a rotary spray arm under the driving of a washing pump to wash the surface of an object to be cleaned.

In the prior art, in order to ensure the cleaning effect of articles to be cleaned in a cleaning machine, the washing area is generally enlarged by prolonging the washing time to improve the ejection probability of washing water, so that the cleaning machine has long cleaning time, water and electricity resources are wasted, and the cleaning efficiency of the cleaning machine is low.

SUMMERY OF THE UTILITY MODEL

The application provides spray arm subassembly and cleaning machine to solve current cleaning machine and wash the technical problem of inefficiency.

In order to solve the technical problem, the application adopts a technical scheme that: a spray arm assembly comprising: the main spray arm is arranged in a rotating mode around a first direction; the auxiliary spray arm is arranged on the main spray arm and is arranged along a second direction; the auxiliary spray arm rotates around the first direction along with the main spray arm, and meanwhile, the auxiliary spray arm rotates around the second direction intermittently, and the second direction is intersected with the first direction.

In order to solve the above technical problem, the present application adopts another technical solution: a cleaning machine comprising a spray arm assembly as claimed in any one of the preceding claims.

According to an embodiment of the application, the cleaning machine comprises a cleaning cavity, and the spray arm assembly is arranged at the top, the bottom or the middle of the cleaning cavity.

The beneficial effect of this application is: through this application scheme, when main spray arm rotated around first direction, rivers sprayed through rotatory main spray arm, erodeed the surface of treating the washing article. Meanwhile, the auxiliary spray arm also intermittently rotates in the second direction and can generate jet water flow with changed angles, so that the auxiliary spray arm not only can continuously change the angles and generate the jet water flow with changed angles, but also can keep the jet water flow after the angles are changed at the continuous impact strength for a certain time, thereby fully reducing the washing dead angles and improving the washing efficiency.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:

FIG. 1 is a perspective view of an embodiment of a spray arm assembly of the present application;

FIG. 2 is an exploded view of an embodiment of the spray arm assembly of the present application;

FIG. 3 is a front view of an embodiment of the spray arm assembly of the present application;

FIG. 4 is a cross-sectional structural schematic view of an embodiment of the spray arm assembly of the present application;

fig. 5 is a schematic structural diagram of an embodiment of the cleaning machine of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

Referring to fig. 1 to 4, fig. 1 is a schematic perspective view of a spray arm assembly according to an embodiment of the present disclosure; FIG. 2 is an exploded view of an embodiment of the spray arm assembly of the present application; FIG. 3 is a front view of an embodiment of the spray arm assembly of the present application; fig. 4 is a schematic cross-sectional view of an embodiment of the spray arm assembly of the present application.

An embodiment of the present application provides a spray arm assembly 100, as shown in fig. 1 and 2, including a main spray arm 110 and a sub spray arm 140. The main nozzle arm 110 is rotatably disposed around a first direction 1111, and the sub nozzle arm 140 is disposed on the main nozzle arm 110 and disposed along a second direction 1121, that is, a length direction and a self axis direction of the sub nozzle arm 140 are located in the second direction 1121. The sub spray arm 140 is rotatably installed around the first direction 1111 along with the main spray arm 110, and at the same time, the sub spray arm 140 is intermittently rotatably installed around the second direction 1121, and the first direction 1111 intersects with the second direction 1121. When the main spray arm 110 rotates in the first direction 1111, water is sprayed through the rotating main spray arm 110 to wash the surface of the object to be cleaned. Meanwhile, the auxiliary spray arm 140 intermittently rotates in the second direction 1121, and can generate a spray water flow with a variable angle, so that the auxiliary spray arm 140 can not only continuously change the angle to generate the spray water flow with the variable angle, but also can keep the continuous impact strength of the spray water flow for a certain time after the angle is changed, thereby sufficiently reducing the washing dead angle and improving the washing efficiency.

In some embodiments, the main nozzle arm 110 includes a main rotation shaft 111 disposed in the first direction 1111 and a sub rotation shaft 112 disposed in the second direction 1121, a rotation axis of the main rotation shaft 111 is located in the first direction 1111, and a rotation axis of the sub rotation shaft 112 is located in the second direction 1121. The spray arm assembly 100 further includes a first transmission member 120 and a second transmission member 130, the first transmission member 120 is sleeved on the main rotating shaft 111, the second transmission member 130 is sleeved on the auxiliary rotating shaft 112, and the second transmission member 130 is in transmission connection with the first transmission member 120. The sub spray arm 140 is rotatably connected to the sub rotating shaft 112 and fixed relative to the second transmission member 130.

As can be seen from the above structure, as shown in fig. 1 and 2, the main spray arm 110 rotates around the axis of the main rotating shaft 111, and at this time, the second transmission member 130 rotates with the main spray arm 110 through the interlocking action of the auxiliary rotating shaft 112, while the first transmission member 120 does not rotate with the main spray arm 110, so that the second transmission member 130 moves relative to the first transmission member 120 and intermittently rotates around the auxiliary rotating shaft 112 under the action of the first transmission member 120, so as to drive the auxiliary spray arm 140 to intermittently rotate around the auxiliary rotating shaft 112. The sub nozzle arm 140 thus intermittently rotates in the second direction 1121 intersecting the first direction 1111 while rotating in the first direction 1111. When the main spray arm 110 rotates in the first direction 1111, water is sprayed through the rotating main spray arm 110 to wash the surface of the object to be cleaned. Meanwhile, the auxiliary spray arm 140 also rotates in the second direction 1121, so that water jet with variable angles can be generated to wash the objects to be cleaned from more different angles, thereby reducing the dead angle of washing and improving the washing efficiency.

In some embodiments, as shown in fig. 2, the first transmission member 120 is a bevel gear, the second transmission member 130 is a bevel gear with a complete tooth structure, the first transmission member 120 is a bevel gear with an incomplete tooth structure, that is, the first transmission member 120 has a part with bevel teeth, the first transmission member 120 is intermittently engaged with the second transmission member 130, when the bevel teeth of the first transmission member 120 rotate to a state of being engaged with the second transmission member 130, the auxiliary spray arm 140 rotates around the auxiliary rotation shaft 112, and the angle of the water flow sprayed by the auxiliary spray arm 140 changes continuously, so as to clean the object to be cleaned from different angles; when the toothless part of the first transmission member 120 rotates to the second transmission member 130, the first transmission member 120 is separated from the second transmission member 130, the second transmission member 130 stops rotating, the angle of the water flow sprayed by the auxiliary spray arm 140 is kept unchanged, and the object to be cleaned is cleaned with a certain impact strength. Therefore, the first transmission member 120 and the second transmission member 130 are kept in transmission through the bevel gear to drive the auxiliary spray arm 140 to rotate intermittently around the auxiliary rotating shaft 112, the auxiliary spray arm 140 can not only change the angle continuously to generate the spray water flow with the changed angle, but also can keep the continuous impact strength of the spray water flow for a certain time after the angle is changed, thereby fully reducing the washing dead angle and improving the washing efficiency. Preferably, the first direction 1111 and the second direction 1121 are perpendicular, that is, the rotation axes of the first transmission member 120 and the second transmission member 130 are kept perpendicular. In other embodiments, the first transmission member 120 and the second transmission member 130 maintain transmission in other manners, such as worm and gear, and the like, without limitation.

Of course, in other embodiments, the spray arm assembly 100 may not include the first transmission element 120 and the second transmission element 130, the auxiliary spray arm 140 may be driven to intermittently rotate by a separate driving element, the driving element is fixed relative to the main spray arm 110, and an output end of the driving element is coaxially fixed with the auxiliary spray arm 140, so that the main spray arm 110 rotates around an axis of the main rotation shaft 111, the auxiliary spray arm 140 rotates with the main spray arm 110, and the auxiliary spray arm 140 intermittently rotates with the auxiliary rotation shaft 112 by the driving element.

With continued reference to fig. 2, in order to improve the smoothness of the rotation between the first transmission 120 and the main rotating shaft 111 and reduce the relative friction, a bearing 172 is provided between the first transmission 120 and the main rotating shaft 111, an inner ring 1721 of the bearing 172 is fixed relative to the main rotating shaft 111, and an outer ring 1722 of the bearing 172 is fixed relative to the first transmission 120. Therefore, the first transmission member 120 is rotatably connected with the main rotating shaft 111 through the bearing 172, so that the relative friction force is reduced, and the rotation smoothness is improved. In addition, the bearing 172 is connected to the first transmission member 120 and the main rotation shaft 111, and the bearing 172 also functions as a snap to ensure the relative fixation of the main spray arm 110 and the first transmission member 120 in the first direction 1111.

Specifically, the inner ring 1721 of the bearing 172 is provided with a snap ring to mount the bearing 172 on the main rotating shaft 111. The outer ring 1722 of the bearing 172 is provided with at least one protrusion fastening position 1723, the first transmission member 120 is provided with a notch 121 correspondingly matched with the protrusion fastening position 1723, and the protrusion fastening position 1723 is fastened at the notch 121, so that the first transmission member 120 and the bearing 172 are relatively fixed in the direction of rotating around the first direction 1111. Preferably, four raised catches 1723 are provided along the circumferential array of the bearing 172.

In an embodiment, as shown in fig. 2 to 4, the spray arm assembly 100 further includes a rotating shaft seat 180, the rotating shaft seat 180 is sleeved outside the main rotating shaft 111 and fixed to the first transmission member 120, and the rotating shaft seat 180 plays a role in limiting the first transmission member 120, the bearing 172 and the main rotating shaft 111 to ensure that the components are fixed to each other in the first direction 1111. Specifically, the rotating shaft seat 180 and the first transmission member 120 are retained by a snap.

The spray arm assembly 100 of the embodiment of the application further includes a baffle 150, the baffle 150 is fixedly connected to the main spray arm 110 and is attached to the auxiliary spray arm 140 along the second direction 1121, and the baffle 150 covers a preset region of the auxiliary spray arm 140. As can be seen from the above structure, the baffle 150 is fixed to the main spray arm 110, and the baffle 150 does not rotate with the sub spray arm 140. The auxiliary spray arm 140 is provided with a plurality of spray holes 141, so that when the auxiliary spray arm 140 rotates, the spray holes 141 which are rotated to be in contact with the baffle 150 are covered, the baffle 150 can be arranged on the side without the articles to be cleaned, and the completely covered spray holes 141 stop spraying water outwards, thereby ensuring the water pressure of the spray arm assembly 100, improving the cleaning effect and reducing the water flow waste.

In addition, due to the arrangement of the baffle 150, part of the spray holes 141 of the auxiliary spray arm 140 can be blocked by the baffle 150, so that the water pressure requirement is ensured, a predetermined number of spray holes 141 can be properly added to the auxiliary spray arm 140, and the spray holes 141 at different positions alternately spray water flows, so that the spray tracks are encrypted while the water pressure is ensured, the washing dead angle is reduced, and the spray efficiency is improved. The addition of the predetermined number and position of the specific injection holes 141 can be adjusted according to actual conditions.

In some embodiments, as shown in fig. 2 and 4, the baffle 150 may penetrate through the inside of the sub spray arm 140 and be attached to the inner wall of the sub spray arm 140 to shield the spray hole 141 from the inside of the sub spray arm 140. Of course, in other embodiments, the baffle 150 may also surround the outer portion of the sub-nozzle arm 140 and be attached to the outer wall of the sub-nozzle arm 140 to shield the nozzle hole 141 from the outer portion of the sub-nozzle arm 140.

In addition, as shown in fig. 2, the shield plate 150 may shield the sub nozzle arm 140 in a half area in the circumferential direction of the sub nozzle arm 140, or may shield a third area, a two-thirds area, etc. in the circumferential direction of the sub nozzle arm 140, and is not limited herein.

Further, when the spray arm assembly 100 is the lower spray arm assembly 100 located below the object to be cleaned, the spray arm assembly 100 sprays water upwards to achieve an effective washing effect, so the baffle 150 is located in the lower half of the auxiliary spray arm 140, and the auxiliary spray arm 140 is blocked by the spray hole 141 which rotates to the lower half, so that the auxiliary spray arm 140 is prevented from spraying water downwards, and waste caused by the downwards-spraying water is avoided while water pressure is guaranteed. Similarly, when the spray arm assembly 100 is the upper spray arm assembly 100 located above the object to be cleaned, the downward spray of the spray arm assembly 100 can achieve an effective washing effect, so the baffle 150 is located at the upper half of the auxiliary spray arm 140 to shield the spray holes 141 on the auxiliary spray arm 140, which are rotated to the upper half, so as to prevent the upward spray of the auxiliary spray arm 140, and avoid the waste caused by the upward spray of water while ensuring the water pressure.

Because the baffle 150 contacts with the auxiliary spray arm 140 during the rotation of the auxiliary spray arm 140, a certain friction exists, in order to reduce the friction of the baffle 150 to the auxiliary spray arm 140, the baffle 150 should be made of a material with a low friction coefficient, so that the friction resistance of the baffle 150 to the auxiliary spray arm 140 is reduced, and the abrasion is reduced. The contact side surface of the baffle 150 and the sub-spray arm 140 may be further polished to reduce frictional resistance.

In addition, as shown in fig. 2, in order to further reduce the contact area between the baffle 150 and the sub-arm 140, a plurality of hollowed portions 151 are provided on the baffle 150, and the hollowed portions 151 are disposed to be offset from the injection holes 141 of the sub-arm 140. That is, the hollow portion 151 is disposed at a position where the shutter 150 does not always contact the nozzle hole 141 in the process of rotating the sub nozzle arm 140 in the second direction 1121, so that the frictional resistance between the sub nozzle arm 140 and the shutter 150 is further reduced.

In some embodiments, as shown in fig. 2, the blocking plate 150 may be directly fixed to the main spray arm 110, and of course, the blocking plate 150 may also be indirectly fixed to the main spray arm 110 by being fixed to the auxiliary rotating shaft 112, and specifically, the spray arm assembly 100 further includes a clamping plate 160, the clamping plate 160 includes a clamping portion 161 and an insertion portion 162, the clamping portion 161 is clamped and fixed to the auxiliary rotating shaft 112, the insertion portion 162 is inserted and connected to the blocking plate 150, so that the blocking plate 150 is fixed to the auxiliary rotating shaft 112 by the clamping plate 160.

Specifically, as shown in fig. 2, the clamping portion 161 is a rotary buckle, the auxiliary rotating shaft 112 includes a clamping slot, the clamping plate 160 is sleeved on the auxiliary rotating shaft 112 and rotates, and the clamping portion 161 is clamped in the clamping slot, so that the clamping of the clamping plate 160 and the auxiliary rotating shaft 112 is realized. Of course, the clamping portion 161 may also be provided with a clamping groove, the auxiliary rotating shaft 112 includes a rotary buckle, the clamping plate 160 is sleeved on the auxiliary rotating shaft and rotates, the auxiliary rotating shaft 112 is clamped in the clamping groove, and the clamping plate 160 and the auxiliary rotating shaft 112 are clamped and fixed.

As shown in fig. 2, an insertion groove 152 is formed in the baffle 150, an insertion portion 162 is formed at one end of the clamping plate 160 away from the clamping portion 161, and the insertion portion 162 is inserted into the insertion groove 152, so that the clamping plate 160 and the baffle 150 are fixed in an insertion manner.

In addition, as shown in fig. 2, the clamping plate 160 tightly supports and fixes the second transmission member 130 sleeved on the auxiliary rotating shaft 112, so as to limit the second transmission member 130 in the second direction 1121. The spray arm assembly 100 further includes a gasket 190, and the gasket 190 is disposed between the second transmission member 130 and the clamping plate 160 to achieve the buffering connection function.

In some embodiments, as shown in fig. 2, the spray arm assembly 100 further includes a sub spray arm frame 170, the sub spray arm frame 170 is connected to the main spray arm 110, the sub spray arm frame 170 is disposed around the outer circumference of the sub spray arm 140, and the end of the sub spray arm 140 may be supported by the sub spray arm frame 170, so that the sub spray arm frame 170 serves to support the sub spray arm 140. The sub spray arm frame 170 is located at a position where the sub spray arm 140 does not require water to be discharged, so that the washing effect of the water spray of the sub spray arm 140 is not affected.

Further, as shown in fig. 2, a reflection surface 173 is disposed on one side of the sub spray arm frame 170 facing the sub spray arm 140, and a part of water sprayed from the sub spray arm 140 is reflected by the reflection surface 173 and then sprayed upwards or downwards, so that multi-dimensional spraying of the sub spray arm 140 can be further realized, thereby greatly increasing the spraying area of the spray arm assembly 100 and improving the cleaning effect of the spray arm assembly 100.

Further, as shown in fig. 2, the sub spray arm frame 170 is provided with water spray holes 171, and when water seeps out from the connection gap between the sub spray arm 140 and the sub rotary shaft 112 or the baffle 150, the water spray holes 171 can allow water between the sub spray arm frame 170 and the sub spray arm 140 to seep out.

The operation of the spray arm assembly 100 of the present application will be described in detail with reference to a specific embodiment:

the main spray arm 110 drives the main rotating shaft 111 to rotate around the first direction 1111, and water flows through the rotating main spray arm 110 to spray and wash the surface of the object to be cleaned. Meanwhile, when the auxiliary spray arm 140 rotates with the main spray arm 110 by a certain angle, the second transmission member 130 contacts and engages with the portion of the first transmission member 120 having the bevel teeth, the second transmission member 130 rotates, and the auxiliary spray arm 140 synchronously rotates around the second direction 1121, so that the water jet which generates angle change can be changed, the objects to be cleaned are washed from more different angles, the washing dead angle is reduced, and the washing efficiency is improved. When the auxiliary spray arm 140 continues to rotate with the main spray arm 110 by a certain angle and the second transmission member 130 contacts with the portion of the first transmission member 120 without the bevel gear, the second transmission member 130 stops rotating and the outflow angle of the water flowing out of the auxiliary spray arm 140 is not changed. By providing the first transmission member 120 as a bevel gear of an incomplete tooth structure, the sub spray arm 140 may be intermittently rotated to intermittently change the angle of the sprayed water stream.

When the spray arm assembly 100 is the lower spray arm assembly 100 located below the object to be cleaned in the embodiment, the spray arm assembly 100 sprays water upwards to achieve an effective washing effect, so that the baffle 150 is located in the lower half part of the auxiliary spray arm 140 in the embodiment, and the spray hole 141 which rotates to the lower half part on the auxiliary spray arm 140 is shielded, so that the downward water flow of the auxiliary spray arm 140 is prevented, and the waste caused by the downward water flow is avoided while the water pressure is ensured.

In the present embodiment, the baffle 150 is inserted into the sub spray arm 140 and attached to the inner wall of a predetermined region of the sub spray arm 140 to shield the spray hole 141 from the inside of the sub spray arm 140.

Due to the arrangement of the baffle 150, part of the spray holes 141 of the auxiliary spray arm 140 can be blocked by the baffle 150, and the water pressure requirement is ensured, so that a preset number of spray holes 141 can be properly added to the auxiliary spray arm 140, and the spray holes 141 at different positions alternately spray water flow, so that the spray track is encrypted while the water pressure is ensured, the washing dead angle is reduced, and the spray efficiency is improved.

The baffle 150 in this embodiment is made of a material with a low friction coefficient, so that the frictional resistance of the baffle 150 to the auxiliary spray arm 140 is reduced, and the abrasion is reduced. The contact side surface of the baffle 150 with the sub-spray arm 140 is further polished to reduce frictional resistance. In addition, in order to further reduce the contact area between the baffle 150 and the sub-nozzle arm 140, the position of the baffle 150 that is not in contact with the nozzle 141 is always hollowed out during the rotation of the sub-nozzle arm 140 around the second direction 1121, so that the frictional resistance between the sub-nozzle arm 140 and the baffle 150 is further reduced.

Referring to fig. 5, fig. 5 is a schematic structural diagram of an embodiment of the cleaning machine of the present application.

Yet another embodiment of the present application provides a cleaning machine 200, as shown in fig. 5, including the spray arm assembly 100 of any of the above embodiments. The spray arm assembly 100 includes a main spray arm 110 and a sub spray arm 140. The main nozzle arm 110 is rotatably disposed around a first direction 1111, and the sub nozzle arm 140 is disposed on the main nozzle arm 110 and disposed along a second direction 1121, that is, the length direction and the self axis direction of the sub nozzle arm 140 are located in the second direction 1121. The sub nozzle arm 140 is rotated about the first direction 1111 with the main nozzle arm 110, and the sub nozzle arm 140 rotates about the second direction 1121, and the first direction 1111 intersects with the second direction 1121. When the main spray arms 110 rotate in the first direction 1111, water is sprayed through the rotating main spray arms 110 to wash the surface of the object to be cleaned. Meanwhile, the auxiliary spray arm 140 also rotates in the second direction 1121, so that water jet with variable angles can be generated, the articles to be cleaned can be washed from more different angles, the washing dead angle is reduced, and the washing efficiency is improved.

The spray arm assembly 100 of the embodiment of the application further includes a baffle 150, the baffle 150 is fixedly connected to the main spray arm 110 and attached to the auxiliary spray arm along the second direction 1121, and the baffle 150 covers a preset region of the auxiliary spray arm. As can be seen from the above structure, the baffle 150 is fixed to the main nozzle arm 110, and the baffle 150 does not rotate with the sub-nozzle arm 140. The auxiliary spray arm 140 is provided with a plurality of spray holes 141, so that when the auxiliary spray arm 140 rotates, the spray holes 141 rotating to be in contact with the baffle 150 are covered, and the completely covered spray holes 141 stop spraying water outwards, thereby ensuring the water pressure of the spray arm assembly 100 and improving the cleaning effect.

In addition, due to the arrangement of the baffle 150, part of the spray holes 141 of the auxiliary spray arm 140 can be blocked by the baffle 150, so that the water pressure requirement is ensured, a predetermined number of spray holes 141 can be properly added to the auxiliary spray arm 140, and the spray holes 141 at different positions alternately spray water flows, so that the spray tracks are encrypted while the water pressure is ensured, the washing dead angle is reduced, and the spray efficiency is improved. The addition of the predetermined number and position of the specific injection holes 141 can be adjusted according to actual conditions.

In some embodiments, as shown in fig. 2 and 4, a baffle 150 may be inserted into the inside of the sub-spray arm 140 and fit against the inner wall of the sub-spray arm 140 to shield the spray hole 141 from the inside of the sub-spray arm 140. Of course, in other embodiments, the baffle 150 may also surround the outer portion of the sub-nozzle arm 140 and be attached to the outer wall of the sub-nozzle arm 140 to shield the nozzle hole 141 from the outer portion of the sub-nozzle arm 140.

Further, the cleaning machine 200 of the embodiment of the present application includes a cleaning chamber 210, and the spray arm assembly 100 is disposed at the top, bottom, or middle of the cleaning chamber 210. When the spray arm assembly 100 is located the bottom of the cleaning cavity 210, the spray arm assembly 100 sprays water upwards to achieve an effective cleaning effect, so the baffle 150 is located in the lower half portion of the auxiliary spray arm 140, and the auxiliary spray arm 140 is blocked by the spray holes 141 in the lower half portion in a rotating manner, so that the auxiliary spray arm 140 is prevented from spraying water downwards, and waste caused by the downwards spraying water is avoided while the water pressure is ensured. When the spray arm assembly 100 is located at the top of the cleaning chamber 210, the spray arm assembly 100 sprays water downwards to achieve an effective cleaning effect, so that the baffle 150 is located at the upper half part of the auxiliary spray arm 140 to shield the spray holes 141 in the upper half part of the auxiliary spray arm 140, prevent the auxiliary spray arm 140 from spraying water upwards, and avoid waste caused by the upwards spraying water while ensuring water pressure.

The terms "first", "second" and "third" in the present application are used for descriptive purposes only and are not to be construed as indicating the number of indicated technical features. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of the feature. In the embodiment of the present application, all the directional indicators (such as upper, lower, left, right, front, and rear … …) are used only to explain the relative positional relationship between the components, the movement, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. A process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to the listed steps or elements but may alternatively include additional steps or elements not listed or inherent to such process, method, article, or apparatus.

The above description is only an example of the present application and is not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings, or which are directly or indirectly applied to other related technical fields, are intended to be included within the scope of the present application.

Claims (14)

1. A spray arm assembly, comprising:

the main spray arm is arranged in a rotating mode around a first direction;

the auxiliary spray arm is arranged on the main spray arm and is arranged along a second direction; the auxiliary spray arm rotates around the first direction along with the main spray arm, and meanwhile, the auxiliary spray arm rotates around the second direction intermittently, and the second direction is intersected with the first direction.

2. The spray arm assembly of claim 1, wherein the main spray arm includes a main rotation shaft disposed in the first direction and an auxiliary rotation shaft disposed in the second direction, the spray arm assembly comprising:

the first transmission piece is sleeved on the main rotating shaft;

the second transmission piece is sleeved on the auxiliary rotating shaft and is in transmission connection with the first transmission piece, and the auxiliary spraying arm and the second transmission piece are relatively fixed;

the main spray arm rotates around the axis of the main rotating shaft, so that the second transmission piece moves relative to the first transmission piece, and intermittently rotates around the auxiliary rotating shaft under the action of the first transmission piece, and the auxiliary spray arm is driven to intermittently rotate around the auxiliary rotating shaft.

3. The spray arm assembly of claim 2 wherein the first drive member and the second drive member are both bevel gears, the first drive member is of an incomplete tooth construction and the second drive member is of a complete tooth construction; the first transmission piece is intermittently meshed with the second transmission piece.

4. The spray arm assembly of claim 2 wherein a bearing is disposed between the first transmission member and the main rotatable shaft, an inner race of the bearing being fixed relative to the main rotatable shaft and an outer race of the bearing being fixed relative to the first transmission member.

5. The spray arm assembly of claim 2, comprising:

the rotating shaft seat is sleeved outside the main rotating shaft and fixed with the first transmission piece.

6. The spray arm assembly of claim 2, wherein the spray arm assembly comprises: the baffle, fixed connection the main spray arm, and laminate along the second direction the vice spray arm sets up to shelter from rotate on the vice spray arm to the contact the orifice of baffle.

7. The spray arm assembly of claim 6, wherein the baffle is disposed inside the secondary spray arm and is configured to engage an inner wall of the secondary spray arm.

8. The spray arm assembly of claim 6 wherein said baffle has a plurality of cutouts formed therein, said cutouts being offset from said orifices in said secondary spray arm.

9. The spray arm assembly of claim 6, comprising:

the clamping plate comprises a clamping portion and an inserting portion, the clamping portion is clamped with the auxiliary rotating shaft, and the inserting portion is inserted into the baffle.

10. The spray arm assembly of claim 2, comprising:

and the auxiliary spray arm frame is connected with the main spray arm and is arranged around the periphery of the auxiliary spray arm in a surrounding manner.

11. The spray arm assembly of claim 10 wherein said secondary spray arm frame is provided with water spray holes.

12. The spray arm assembly of claim 9 wherein said secondary spray arm frame is provided with a reflective surface on a side facing said secondary spray arm.

13. A cleaning machine, characterized in that it comprises a spray arm assembly according to any one of claims 1-12.

14. The cleaning machine of claim 13 wherein the cleaning machine includes a cleaning chamber, the spray arm assembly being disposed at a top, bottom or middle portion of the cleaning chamber.

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