CN219126242U - Rotary spray arm, spray arm structure applying rotary spray arm and dish washing device - Google Patents

Abstract

The utility model discloses a sub-rotary spray arm, a spray arm structure applying the sub-rotary spray arm and a bowl washing device, and belongs to the field of bowl washing equipment. The spray arm structure comprises a main spray arm and a sub rotary spray arm, wherein the rotation axis of the sub rotary spray arm is arranged at an angle with the rotation axis of the main spray arm, the main spray arm is provided with a containing groove, and the sub rotary spray arm is rotationally connected in the containing groove; and the water mover in the first flow passage rotates to rotate the rotary spray arm. The dish washing device comprises a spray arm structure. The utility model can increase the spray angle, reduce the washing dead zone and improve the washing efficiency.

Description

Rotary spray arm, spray arm structure applying rotary spray arm and dish washing device

Technical Field

The utility model relates to dish washing equipment, in particular to a sub-rotary spray arm, a spray arm structure using the sub-rotary spray arm and a dish washing device.

Background

The dishwasher is mainly used for cleaning tableware, the purpose of the dishwasher is to clean the tableware, the spray arm is a main component in the dishwasher, and the structure of the spray arm is related to the cleaning capability of the dishwasher, so that how to optimize the structure of the spray arm to improve the cleaning capability is a technical problem to be considered in the design process.

Disclosure of Invention

In a first aspect, the present application provides a rotary sub-spray arm for improving washing efficiency.

The application provides a rotary spray arm of seed adopts following technical scheme:

the rotary sub-spray arm comprises a spray runner (2011), a driving runner (2023), a spray auxiliary hole (2010) and a sub-power inclined hole (2020), wherein the spray runner (2011) is communicated with the driving runner (2023); the spraying auxiliary hole (2010) is communicated with a spraying runner (2011), and the sub-power inclined hole (2020) is communicated with the driving runner (2023); the outer surface of the sub rotary spray arm (2022) comprises a cylindrical surface and a curved surface, the cylindrical surface is connected with the curved surface, and the cylindrical surface is closer to the connecting part than the curved surface; the sub-power inclined holes are formed in the cylindrical surface partially, and the other parts of the sub-power inclined holes are formed in the curved surface partially; the method comprises the steps of defining a part of a sub-power inclined hole formed in a cylindrical surface as a first hole part, defining a part of the sub-power inclined hole formed in a curved surface as a second hole part, and enabling an angle between the extending direction of the first hole part on the cylindrical surface and the extending direction of the second hole part on the curved surface to be an obtuse angle, wherein at least the sub-power inclined hole can enable the sub-rotary spray arm to rotate around the central axis direction of the sub-rotary spray arm.

Through adopting above-mentioned technical scheme, utilize the oblique hole of son power, can drive the rotatory spray arm of son and rotate around self central axis direction, make the spraying pair Kong Jizi on the rotatory spray arm of son power downthehole spun water can cover bigger scope and provide more spray angle, increased the injection direction of rivers to be favorable to reducing the washing blind area, make water can wash the bowl dish with more directions.

Optionally, the sub rotary spray arm comprises a spray part and a driving part, the spray part and the driving part are arranged and connected, the spray runner and the spray auxiliary hole are formed in the spray part, and the sub power inclined hole is formed in the driving part; the driving part comprises a connecting part and a main body part, the connecting part is connected with the main body part, and the connecting part is connected with the spraying part; the cylindrical surface is closer to the connecting portion than the curved surface.

By adopting the technical scheme, the spraying part and the driving part which are arranged in a split way are utilized, and each part is convenient for production, manufacture and molding, so that the cost is reduced.

Optionally, the connecting portion is closer to the spraying portion for the main part, spraying runner, drive runner set gradually and inside water is through spraying portion, connecting portion, main part in proper order.

By adopting the technical scheme, the driving part is connected to the tail end of the spraying part, so that water can be sprayed out of the sub-power inclined hole of the driving part after passing through the spraying part, the tail end of the spraying part can directly use the driving part as a blocking cover, and the cost is reduced.

Optionally, the spraying auxiliary holes are multiple, and at least part of inner side walls of part of the spraying auxiliary holes are arranged at an angle relative to the radial axis of the sub-rotary spray arm.

Through adopting above-mentioned technical scheme, utilize part to spray vice hole spun water also can provide and drive the rotatory spray arm of son around its self central axis direction pivoted drive power to can increase the rotatory in-process drive power of spray arm of son, make the rotatory spray arm of son can rotate more smoothly.

Optionally, the device also comprises a small impeller arranged in the spraying runner or the driving runner, and water in the spraying runner or the driving runner drives the small impeller to drive the sub rotary spray arm to rotate.

By adopting the technical scheme, the small impeller can be utilized to provide power for the rotation of the sub rotary spray arm under the drive of water flow.

In a second aspect, the present application provides a spray arm structure for enhancing the cleaning ability of dishes.

The application provides a spray arm structure adopts following technical scheme:

the spray arm structure comprises a main spray arm, a sub rotary spray arm and a main spray arm, wherein the main spray arm is provided with a water inlet hole, a first flow passage and a spray hole, the first flow passage is communicated with the water inlet hole and the spray hole, the sub rotary spray arm is characterized in that the rotation axis of the sub rotary spray arm is arranged at an angle with the rotation axis of the main spray arm, the main spray arm is provided with a containing groove, and the sub rotary spray arm is rotationally connected in the containing groove; the spraying flow passage, the driving flow passage and the first flow passage are communicated, so that water in the first flow passage enters the spraying flow passage and the driving flow passage and drives the sub rotary spray arm to rotate.

Through adopting above-mentioned technical scheme, combine main spray arm and son rotation spray arm, make main spray arm take son rotation spray arm around an axis rotation, simultaneously, son rotation spray arm rotates around its self central axis, has increased the injection direction in comparison with only the rotation of main spray arm, can wash more the multi-angle, improves abluent effect, promotes washing efficiency.

Optionally, the main spray arm is provided with a cylinder part, the cylinder part is rotationally connected with the sub rotary spray arm, the sub rotary spray arm is sleeved or inserted in the cylinder part, and the cylinder part is provided with a circulation cavity communicated with the first flow channel, the spray flow channel and the driving flow channel; the inner wall of the cylinder part is provided with a positioning ring, and the end part of the sub rotary spray arm is abutted against the end surface of the positioning ring.

Through adopting above-mentioned technical scheme, utilize drum portion can play the installation location effect to the installation position of child rotatory spray arm in the holding tank to make child rotatory spray arm keep stable at the rotation in-process. The water in the main spray arm can be better led into the sub rotary spray arm by utilizing the abutting action of the positioning ring and the end face of the sub rotary spray arm, so that the subsequent driving force is improved.

Optionally, the sub rotary spray arm is provided with a rotary column, and the rotary column is positioned at the tail end of the sub rotary spray arm in the length direction; the main spray arm is provided with a claw which is positioned in the accommodating groove and is connected with the tail end of the accommodating groove in the length direction; the claw is provided with a buckling groove and a notch, and the rotating column is clamped into the buckling groove from the notch and is rotationally connected with the buckling groove.

Through adopting above-mentioned technical scheme, utilize the lock joint cooperation of jack catch and pivoted post, make the rotatory spray arm of son can rotate in the holding tank more steadily to utilize lock joint groove and breach on the jack catch, can be more convenient for install to the rotatory spray arm of son.

Optionally, the main spray arm comprises a spray arm upper sheet and a spray arm lower sheet, and the accommodating groove is formed in the spray arm upper sheet and/or the spray arm lower sheet.

By adopting the technical scheme, the spray arm upper piece and the spray arm lower piece are utilized, so that the production, the manufacture and the molding can be facilitated, and the cost is reduced.

Optionally, the upper spray arm piece and the lower spray arm piece are provided with clamping pieces at the edges of the accommodating grooves, and the upper and lower corresponding clamping pieces are clamped and fixed.

Through adopting above-mentioned technical scheme, utilize the joint piece can promote the connection compactness between spray arm upper segment and the spray arm lower segment, reduce the leakage of water.

Optionally, at least one side of the inner part of the upper spray arm piece and/or the lower spray arm piece, which is located in the width direction of the accommodating groove, is provided with a runner communicated with the water inlet hole, and the upper spray arm piece and/or the lower spray arm piece is provided with a side spray hole.

By adopting the technical scheme, the main spray arm provided with the sub rotary spray arm is synchronously provided with the side spray holes, so that the spray direction and the range covered by the spray can be further increased, and the flushing effect is improved.

In a third aspect, the present application provides a dishwasher device for enhancing the cleaning ability of dishes.

The application provides a dish washing device which adopts the following technical scheme:

a dishwasher device comprising a spray arm arrangement as claimed in the second aspect.

In summary, compared with the prior art, the application has the following beneficial effects: the first hole part of the sub-power inclined hole is formed on the cylindrical surface, the second hole part of the sub-power inclined hole is formed on the curved surface, and the angle between the extending direction of the first hole part on the cylindrical surface and the extending direction of the second hole part on the curved surface is an obtuse angle, so that the water jet direction is favorably increased, the washing dead zone is favorably reduced, the washing dead zone can be reduced, and the bowl and the dish can be washed by water in more directions; the main spray arm and the sub rotary spray arm connected to the main spray arm in a rotating manner are utilized, compared with a single main spray arm, the rotating dimension of one sub rotary spray arm can be increased, the spray direction of water flow and the coverage range are increased, and the flushing effect is improved.

Drawings

Fig. 1 is a schematic diagram of an exploded structure of a rotary sub-spray arm according to the present embodiment.

Fig. 2 is a schematic partial structure of a rotary sub-spray arm according to the present embodiment.

Fig. 3 is a partial cross-sectional view of a rotary sub-spray arm according to the present embodiment.

Fig. 4 is a schematic view of a partial structure of a rotary spray arm for illustrating a small impeller according to the present embodiment.

Fig. 5 is a top view of a spray arm structure disclosed in this embodiment.

Fig. 6 is a section A-A of fig. 5.

Fig. 7 is a partial structural view of a spray arm structure disclosed in this embodiment.

Fig. 8 is a partial enlarged view of fig. 7, mainly for showing the cylindrical portion.

Fig. 9 is a sectional view of B-B of fig. 5.

Fig. 10 is a schematic structural view of a spray arm upper sheet of a spray arm structure disclosed in this embodiment.

Fig. 11 is a schematic structural view of a boom lower sheet of a boom structure disclosed in this embodiment.

Reference numerals illustrate: 1. a main spray arm; 100. a first flow passage; 10. a water inlet hole; 101. a connecting ring; 11. loading a spray arm; 12. spraying arm to lower piece; 13. an injection hole; 14. a power hole; 2. a sub-rotary spray arm; 201. a spraying part; 2011. spraying a runner; 2010. spraying auxiliary holes; 202. a driving section; 2023. driving the flow channel; 2021. a connection part; 2022. a main body portion; 20221. a cylindrical surface; 20222. a curved surface; 2020. a sub-power inclined hole; 20201. a first hole portion; 20202. a second hole portion; 21. rotating the column; 211. a buckle piece; 2111. a notch; 3. a receiving groove; 4. a cylindrical portion; 41. a flow-through chamber; 42. a positioning ring; 5. converging inclined planes; 6. a small impeller; 7. a clamping plate; 8. a clamping piece; 81. a buckle; 9. a flow passage; 15. side spray holes.

Detailed Description

The present application is described in further detail below with reference to the accompanying drawings.

The first aspect of the embodiment of the application discloses a rotary sub-spray arm. Referring to fig. 1 and 2, the sub rotary spray arm 2 includes a driving part 202 and a spraying part 201, a spraying runner 2011 is provided in the spraying part 201, a driving runner 2023 is provided in the driving part 202, the spraying runner 2011 is communicated with the driving runner 2023, external water enters the spraying runner 2011 and the driving runner 2023 in the sub rotary spray arm 2, and the spraying part 201 is driven to rotate around a direction perpendicular to a rotation axis of the main spray arm 1 by the driving part 202.

The spraying part 201 is provided with a spraying auxiliary hole 2010, and the driving part 202 is provided with a sub-power inclined hole 2020.

In the present embodiment, the spraying portion 201 is a cylinder and two end surfaces are communicated through, the driving portion 202 includes a connecting portion 2021 and a main body portion 2022, the connecting portion 2021 and the main body portion 2022 are connected, and an outer peripheral contour of the connecting portion 2021 is closer to a central axis of the driving portion 202 than an outer peripheral contour of the main body portion 2022; the connection portion 2021 extends into the spray portion 201 and is spliced with the spray portion 201, and in another embodiment, the diameter of the connection portion 2021 may be larger than that of the main body portion 2022 and is sleeved on the outer wall of the spray portion 201. The driving part 202 is connected to one end of the spraying part 201, while the other end of the spraying part 201 is rotatably connected to the cylindrical part 4 and can be inserted into the inner wall of the cylindrical part 4, and the end surface of the spraying part 201 away from the driving part 202 is abutted against the end surface of the positioning ring 42. In some embodiments, the materials of the spraying portion 201 and the driving portion 202 may be different, the spraying portion 201 may be plastic, and the driving portion 202 may be metal.

The outer surface of the main body portion 2022 includes a cylindrical surface 20221 and a curved surface 20222, the cylindrical surface 20221 is connected to the curved surface 20222, and the cylindrical surface 20221 is closer to the connecting portion 2021 than the curved surface 20222; the sub-power bevel 2020 has a portion formed in the cylindrical surface 20221, and the sub-power bevel 2020 has another portion formed in the curved surface 20222; the portion of the sub-power inclined hole 2020 formed in the cylindrical surface 20221 is defined as a first hole portion 20201, the portion of the sub-power inclined hole 2020 formed in the curved surface 20222 is defined as a second hole portion 20202, and an angle between an extending direction of the first hole portion 20201 on the cylindrical surface 20221 and an extending direction of the second hole portion 20202 on the curved surface 20222 is set at an obtuse angle. By adopting the technical scheme, the jet direction of water flow is increased, so that the washing dead zone is reduced, and the bowl and the dish can be washed by water in more directions.

The sub-power inclined holes 2020 are communicated with the driving flow channel 2023, so that when water is sprayed out of the sub-power inclined holes 2020, the component force of the water can drive the spraying part 201 and the driving part 202 to synchronously rotate around the central axis of the spraying part and the driving part 202, and the sub-power inclined holes 2020 on the driving part 202 can be multiple and uniformly distributed along the circumferential direction of the driving part 202.

The axis of the spray sub-holes 2010 may be parallel to the radial direction of the spray portion 201, and in some embodiments, the spray sub-holes 2010 are uniformly distributed in plurality and form one group along the circumferential direction of the spray portion 201, while the spray sub-holes 2010 are provided with a plurality of groups along the axial direction of the spray portion 201. Of course, the arrangement of the spray auxiliary holes 2010 may be changed according to the actual cleaning requirements.

Referring to fig. 3, in some embodiments, at least a portion of the inner sidewall of the sub-motive angled bore 2020 distal to the end of the central axis of the sub-rotary spray arm 2 is disposed at an angle with respect to the radial axis of the sub-rotary spray arm 2; on a section perpendicular to the central axis of the sub rotary spray arm 2, at least one of two opposite side walls of the sub power inclined hole 2020 is arranged in a non-parallel and angular manner with the radial direction of the sub rotary spray arm 2; when the inner side wall of the sub-power inclined hole 2020 is a plane, the plane is not parallel to the radial axis of the sub-rotary spray arm 2 and is arranged at an angle, and when the inner side wall of the sub-power inclined hole 2020 is an arc surface, the plane of the arc surface is not perpendicular to the radial axis of the sub-rotary spray arm 2 and is arranged at an angle. The end of the sub-power inclined hole 2020 is a position where water is ejected from the sub-rotary spray arm 2 through the driving flow passage 2023, and the sub-rotary spray arm 2 can be driven to rotate around its own central axis by the opposing force of the tangential component of the ejected water ejected from the sub-power inclined hole 2020.

In some embodiments, the partial spray auxiliary bore 2010 may also be a sub-power inclined bore 2020, i.e., at least a portion of the inner sidewall of the partial spray auxiliary bore 2010 is disposed at an angle relative to the radial direction of the sub-rotating spray arm 2.

In some embodiments, external water enters from one end of the spraying part 201 far away from the driving part 202, and sequentially passes through the spraying part 201, the connecting part 2021 and the main body part 2022, so that the water is ejected from the sub-power inclined hole 2020 of the main body part 2022 to drive the whole sub-rotary spray arm 2 to rotate, and the water is ejected from the spraying flow passage 2011 and the driving flow passage 2023 until flowing into the main body part 2022 at the tail end to drive the sub-rotary spray arm 2 to rotate, so that the rotation of the sub-rotary spray arm 2 can be smoother.

Referring to fig. 4, in some embodiments, a small impeller 6 is disposed in the spray runner 2011 or the driving runner 2023 of the sub-rotary spray arm 2, and externally-entering water can drive the entire sub-rotary spray arm 2 to rotate around its own axis through the small impeller 6. The small impeller 6 can be a plurality of inclined blades distributed along the circumferential direction of the sub rotary spray arm 2, one end of each inclined blade is directly and fixedly connected to the inner wall of the sub rotary spray arm 2, and the other ends of the inclined blades are fixedly connected together. In some embodiments, the small impeller 6 may also be a circular ring block, and a plurality of inclined blades are uniformly distributed on the inner wall of the circular ring block along the circumferential direction, and the circular ring block is inserted and fixed on the inner wall of the sub rotary spray arm 2, or is fixedly or detachably connected to the inner wall of the sub rotary spray arm 2 through other structures. In other embodiments, the small impeller 6 may be disposed at an end of the sub-rotary spray arm 2 inserted into the cylindrical portion 4, at an end of the sub-rotary spray arm 2 remote from the cylindrical portion 4, or at an arbitrary position along the length of the sub-rotary spray arm 2.

A second aspect of the embodiment of the present application discloses a spray arm structure, referring to fig. 5 and 6, including a main spray arm 1 and a sub-rotary spray arm 2 disclosed in the first aspect, the main spray arm 1 has a water inlet 10, an injection hole 13, and a first flow channel 100, and the first flow channel 100 communicates with the injection hole 13 and the water inlet 10. The sub rotary spray arm 2 is rotatably connected to the main spray arm 1, and the rotation axis of the sub rotary spray arm 2 is disposed at an angle to the rotation axis of the main spray arm 1, and in this embodiment, it is preferable that the rotation axis of the sub rotary spray arm 2 is disposed perpendicular to the rotation axis of the main spray arm 1. The sub rotary spray arm 2 is communicated with the main spray arm 1, the main spray arm 1 is provided with a containing groove 3, the sub rotary spray arm 2 is rotationally connected in the containing groove 3, and water in the main spray arm 1 is introduced into the sub rotary spray arm 2 and drives the sub rotary spray arm 2 to rotate around the direction of the self rotation axis. The rotation axis of the main spray arm 1 is the central axis around which the main spray arm 1 rotates, and the rotation axis of the sub rotary spray arm 2 is the central axis around which the sub rotary spray arm 2 rotates.

In this embodiment, only one fluid medium is introduced into the main spray arm 1 and the sub rotary spray arm 2, and other media may be introduced into the main spray arm 1 and the sub rotary spray arm 2 according to actual requirements.

The main spray arm 1 is of a strip-shaped hollow plate-shaped structure, and two ends of the main spray arm are arc-shaped. The water inlet 10 is arranged at the center of the main spray arm 1 and is communicated with the first runner 100 of the main spray arm 1, the water inlet 10 penetrates through one side surface of the main spray arm 1, but the position of the water inlet 10 on the main spray arm 1 can be changed according to actual needs, and the water inlet 10 can be arranged at the end position closer to the main spray arm 1.

The main spray arm 1 is flanged at the water inlet 10 with a connecting ring 101, which connecting ring 101 is used for connecting an external mechanism, and the main spray arm 1 can rotate around the axis of the water inlet 10.

The sub rotary spray arms 2 are disposed on one side of the water inlet 10 of the main spray arm 1, in some embodiments, the sub rotary spray arms 2 are disposed on both sides of the water inlet 10 of the main spray arm 1, and according to the width of the main spray arm 1, the number of sub rotary spray arms 2 on one side of the water inlet 10 of the main spray arm 1 is not limited to one, a plurality of sub rotary spray arms 2 may be disposed on any side of the water inlet 10 of the main spray arm 1, and a plurality of adjacent sub rotary spray arms 2 on each side may be sequentially arranged along the width direction of the main spray arm 1, or may be directly sequentially arranged along the length direction of the main spray arm 1.

Referring to fig. 5 and 6, in this embodiment, the injection hole 13 is disposed on one side of the main spray arm 1 where the sub-rotary spray arm 2 is not disposed, the number of injection holes 13 is plural and is uniformly distributed along the length direction of the main spray arm 1, and the axis of the injection hole 13 may be perpendicular to the surface of the main spray arm 1 and penetrates through the upper surface of the main spray arm 1, at this time, a power hole 14 communicating with the first flow channel 100 is formed on the surface of the main spray arm 1 below the injection hole 13, and the axis of the power hole 14 is inclined, so that a certain angle is formed between the axis and the rotation axis of the main spray arm 1, or the axis of the power hole 14 is horizontal, so that the axis of the power hole is perpendicular to the rotation axis of the main spray arm 1 and perpendicular to the length direction of the main spray arm 1. In other embodiments, the plurality of injection holes 13 provided along the length direction of the main spray arm 1 form a row, and the plurality of rows of injection holes 13 are provided along the width of the main spray arm 1 according to the width of the main spray arm 1.

In some embodiments, the axis of the spraying hole 13 on the upper surface of the main spraying arm 1 is inclined, so that an inclined angle is formed with the upper surface of the main spraying arm 1, and the axis directions of the spraying holes 13 in a row are parallel, in this embodiment, the power hole 14 or the auxiliary power hole 14 can be omitted, and the inclined spraying hole 13 is utilized to drive the main spraying arm 1 to rotate around the axis of the water inlet 10.

In this embodiment, the accommodating groove 3 is formed on one side of the main spray arm 1 where the sub rotary spray arm 2 is disposed, the accommodating groove 3 is formed along the length direction of the main spray arm 1, the length of the accommodating groove 3 is smaller than the length of one side of the main spray arm 1, and in other embodiments, the accommodating groove 3 may be formed correspondingly according to the number and arrangement of the sub rotary spray arms 2. The sub rotary spray arm 2 can be rotated around its own axis by the water in the main spray arm 1 after being positioned in the accommodation groove 3, and the rotation axis of the sub rotary spray arm 2 is perpendicular to the rotation axis of the main spray arm 1. In other embodiments, the accommodating groove 3 may be formed in a direction that forms an angle with the rotation axis of the main spray arm 1, and after the sub rotary spray arm 2 is placed in the accommodating groove 3, the sub rotary spray arm 2 is inclined with respect to the horizontal plane.

The accommodating groove 3 penetrates the upper and lower surfaces of the main spray arm 1, and in other embodiments, the accommodating groove 3 may penetrate only one surface of the main spray arm 1.

In this embodiment, the sub rotary spray arm 2 is rotatably connected in the accommodating groove 3, and the diameter of the sub rotary spray arm 2 is larger than the thickness of the upper and lower surfaces of the main spray arm 1 but smaller than the width of the accommodating groove 3.

Referring to fig. 7 and 8, the main spray arm 1 is provided with a cylindrical portion 4, the cylindrical portion 4 is located at the accommodating groove 3, the cylindrical portion 4 may be integrally formed with the main spray arm 1 when the main spray arm 1 is formed, the cylindrical portion 4 is annular, and the axial direction of the cylindrical portion 4 is parallel to the length direction of the accommodating groove 3, and the sub rotary spray arm 2 may be inserted into or coupled with the cylindrical portion 4. In other embodiments, the cylindrical portion 4 may be fixedly connected to the main spray arm 1 or detachably fixedly connected to the main spray arm 1 by other structures.

In the present embodiment, the cylindrical portion 4 is located at one end of the accommodating groove 3 near the water inlet hole 10, and the cylindrical portion 4 communicates with the first flow passage 100, and when the sub rotary spray arm 2 is inserted into the cylindrical portion 4, the spray flow passage 2011 communicates with the first flow passage 100 through the cylindrical portion 4. In other embodiments, the sub rotary spray arm 2 may be fitted around the outer wall of the cylindrical portion 4.

In some embodiments, the cylindrical portion 4 may be disposed at an end of the accommodating groove 3 away from the center of the main boom 1, or at an arbitrary position in the longitudinal direction of the accommodating groove 3.

In the present embodiment, the cylindrical portion 4 is penetrated along both axial end surfaces thereof and forms a flow chamber 41, the flow chamber 41 communicates with the inside of the main boom 1, and the first flow passage 100 and the shower flow passage 2011 communicate with each other through the flow chamber 41 when the sub-boom 2 is connected to the cylindrical portion 4. In other embodiments, when the cylindrical portion 4 is not provided at the end of the accommodation groove 3, the side wall of the cylindrical portion 4 communicates with the inside of the main spray arm 1, and at the same time, the side wall of the sub rotary spray arm 2 communicates with the inside of the cylindrical portion 4.

In the present embodiment, the positioning ring 42 is provided on the inner wall of the cylindrical portion 4, and the positioning ring 42 may be integrally formed on the inner wall of the cylindrical portion 4, so that when the sub rotary spray arm 2 and the cylindrical portion 4 are mounted, one end surface of the sub rotary spray arm 2 is abutted against the end surface of the positioning ring 42, thereby positioning the position of the sub rotary spray arm 2 in the accommodating groove 3, and simultaneously, enabling the water of the main spray arm 1 to be introduced into the sub rotary spray arm 2 as much as possible. In order to better collect water into the cylindrical portion 4, a collecting slope 5 for guiding water to the cylindrical portion 4 is provided in the main spray arm 1 on a side of the cylindrical portion 4 near the center of the main spray arm 1.

Referring to fig. 1 and 9, a rotating column 21 is further disposed at one end of the sub-rotary spray arm 2 away from the cylindrical portion 4, the rotating column 21 is a cylinder, the central axis of the rotating column 21 is coaxial with the axis of the sub-rotary spray arm 2, the rotating column 21 is integrally formed at one end of the sub-rotary spray arm 2 away from the cylindrical portion 4, and the rotating column 21 can be fixedly mounted or detachably fixed at one end of the sub-rotary spray arm 2 away from the cylindrical portion 4 through other structures.

Referring to fig. 9, in order to cooperate with the rotary post 21, the inner wall of one end of the main spray arm 1 far away from the cylinder portion 4 in the accommodating groove 3 is provided with a claw, the claw is located in the accommodating groove 3 and is connected with the end of the accommodating groove 3 in the length direction, the claw comprises a plurality of fastening pieces 211 uniformly distributed along the circumferential direction of the rotary spray arm 2, 3 fastening pieces 211 are provided in this embodiment, gaps are formed between the adjacent fastening pieces 211, a fastening groove with a circular cross section is formed in the middle of the three fastening pieces 211, the gap between the two fastening pieces 211 is located at the top of the fastening groove, the gap is formed into a notch 2111 for fastening the rotary post 21, the distance between the notch 2111 is slightly smaller than the diameter of the rotary post 21, the opposite parts of the fastening pieces 211 located at two sides of the notch 2111 are arc surfaces, so that the rotary post 21 is fastened in the fastening grooves and the rotary post 21 are in clearance fit, when the rotary spray arm 2 is assembled, one end far away from the rotary post 21 is firstly inserted into the cylinder portion 4, a large part of the rotary spray arm 2 can be placed into the accommodating groove 3, and then the rotary post 21 is connected into the rotary post 2 from the notch 2111 by forcing one end to the rotary post 2. In other embodiments, the fastening slot is formed at one end of the main spray arm 1 located at the accommodating slot 3, and penetrates through the upper surface of the main spray arm 1 and the inner side wall of the accommodating slot 3, the cross section of the fastening slot is circular, a notch is formed on the upper surface of the main spray arm 1, the fastening slot is matched with the rotating column 21 in a clearance 2111, but the width of the notch of the fastening slot is slightly smaller than the diameter of the rotating column 21.

In the present embodiment, the rotation post 21 is integrally formed or detachably connected to an end of the driving part 202 remote from the shower part 201, and the rotation post 21 and the driving part 202 remain coaxial.

In other embodiments, when the cylindrical portion 4 is located at an arbitrary position in the longitudinal direction of the shower portion 201 as described above, the driving portion 202 may be still connected to one end of the shower portion 201 and rotatably connected to the main boom 1 through the rotation column 21.

In other embodiments, one end of the spraying portion 201 is connected with the cylindrical portion 4, the other end is a closed end (not shown in the figure), an assembly groove penetrating through the outer side wall of the spraying portion 201 is formed at any position of the spraying portion 201 in the length direction, the span of the assembly groove can be half of the spraying portion 201 or a semicircle larger than the spraying portion 201 is smaller than the whole circle of the spraying portion 201, the driving portion 202 is penetrated through at two end surfaces and can be clamped and fixed in the assembly groove, the driving portion 202 and the spraying portion 201 can be fixed in a sealing manner, at this time, a sub-power inclined hole 2020 of the driving portion 202 is formed in the side wall of the driving portion 202, and therefore the spraying portion 201 can be driven to rotate synchronously by water sprayed from the sub-power inclined hole 2020.

Referring to fig. 4, in other embodiments, one end of the sub-rotary spray arm 2 is inserted into the cylindrical portion 4, and the first flow passage 100 and the second flow passage 200 are communicated through the flow chamber 41 of the cylindrical portion 4,

referring to fig. 10 and 11, for better assembly and disassembly, the main boom 1 includes a boom upper sheet 11 and a boom lower sheet 12, and the accommodation groove 3 is opened at the boom upper sheet 11 and/or the boom lower sheet 12.

In this embodiment, the same accommodating groove 3 is formed on the same side of the water inlet 10 on the upper arm piece 11 and the lower arm piece 12, and the same accommodating groove 3 is communicated with each other, so that the accommodating groove 3 penetrates the upper and lower surfaces of the main arm 1, and in other embodiments, the accommodating groove 3 may be formed only on the upper surface of the upper arm piece 11 or the lower surface of the lower arm piece 12 as described above. In addition, the water inlet hole 10 can be formed on any one of the spray arm upper sheet 11 and the spray arm lower sheet 12 according to actual requirements.

In this embodiment, the cylindrical portion 4 is integrally formed at the end of the receiving groove 3 of the boom lower sheet 12 near the water inlet 10, and after the boom upper sheet 11 and the boom lower sheet 12 are connected, the cylindrical portion 4 protrudes from the receiving groove 3 of the boom upper sheet 11.

In order to better connect the spray arm upper sheet 11 and the spray arm lower sheet 12, the outer edges of the spray arm upper sheet 11 and the spray arm lower sheet 12 are respectively flanged to form a clamping plate 7, and the spray arm upper sheet 11 and the spray arm lower sheet 12 can be fixedly connected through a flanging compaction process.

Meanwhile, in order to better connect the positions of the accommodating grooves 3, the upper spray arm piece 11 and the lower spray arm piece 12 are also turned to form clamping pieces 8 along the edges of the accommodating grooves 3, a plurality of buckles 81 are uniformly formed on the clamping pieces 8 positioned at two sides of the accommodating grooves 3, the buckles 81 can be uniformly distributed along the length direction of the main spray arm 1, the buckles 81 of the upper spray arm piece 11 and the buckles 81 of the lower spray arm piece 12 can be in one-to-one correspondence and are mutually clamped and fixed, the buckles 81 can be in the form of grooves of the upper spray arm piece 11, wedges of the lower spray arm piece 12 can be replaced, and when the upper spray arm piece 11 and the lower spray arm piece 12 are clamped and fixed, the buckles 81 on the clamping pieces 8 can be tightly matched.

Because the upper spray arm piece 11 and the lower spray arm piece 12 form the clamping piece 8 at the edge of the accommodating groove 3, the flow channels 9 positioned at two sides of the width direction of the accommodating groove 3 are formed between the clamping piece 8 and the clamping plate 7 at the outer edge, the flow channels 9 are communicated with the water inlet holes 10, and meanwhile, a plurality of side spray holes 15 are uniformly distributed at positions of the upper spray arm piece 11 and/or the lower spray arm piece 12 corresponding to the flow channels 9 along the length direction of the main spray arm 1, and the axial directions of the side spray holes 15 are parallel to the axial directions of the water inlet holes 10.

The third aspect of the embodiment of the application discloses a dish washing device, which is provided with a washing cavity, wherein a spray arm structure is positioned in the washing cavity and can be arranged on the top wall, the side wall or the bottom wall of the washing cavity; in other embodiments, the spray arm structure may also be coupled to the bowl basket and located at the bottom of the bowl basket.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (12)

1. The utility model provides a seed rotation spouts arm which characterized in that: the device comprises a spray runner (2011), a driving runner (2023), a spray auxiliary hole (2010) and a sub-power inclined hole (2020), wherein the spray runner (2011) is communicated with the driving runner (2023); the spraying auxiliary hole (2010) is communicated with a spraying runner (2011), and the sub-power inclined hole (2020) is communicated with the driving runner (2023); the outer surface of the sub rotary spray arm (2) comprises a cylindrical surface (20221) and a curved surface (20222), the cylindrical surface (20221) is connected with the curved surface (20222), the sub power inclined hole (2020) is partially formed in the cylindrical surface (20221), and the other sub power inclined hole (2020) is partially formed in the curved surface (20222); the part of the sub-power inclined hole (2020) formed on the cylindrical surface (20221) is defined as a first hole part (20201), the part of the sub-power inclined hole (2020) formed on the curved surface (20222) is defined as a second hole part (20202), and the angle between the extending direction of the first hole part (20201) on the cylindrical surface (20221) and the extending direction of the second hole part (20202) on the curved surface (20222) is arranged at an obtuse angle, so that the sub-rotary spray arm (2) can rotate around the central axis direction of the sub-rotary spray arm (2) at least through the sub-power inclined hole (2020).

2. A sub-rotary spray arm according to claim 1, wherein: the sub-rotary spray arm comprises a spray part (201) and a driving part (202), the spray part (201) and the driving part (202) are arranged in a split mode and connected, the spray runner (2011) and the spray auxiliary hole (2010) are formed in the spray part (201), and the sub-power inclined hole (2020) is formed in the driving part (202); the driving part (202) comprises a connecting part (2021) and a main body part (2022), the connecting part (2021) is connected with the main body part (2022), and the connecting part (2021) is connected with the spraying part (201); the cylindrical surface (20221) is closer to the connecting portion (2021) than the curved surface (20222).

3. A sub-rotary spray arm according to claim 2, wherein: the connecting part (2021) is closer to the spraying part (201) than the main body part (2022), the spraying flow channel (2011) and the driving flow channel (2023) are sequentially arranged, and water inside sequentially passes through the spraying part (201), the connecting part (2021) and the main body part (2022).

4. A sub-rotary spray arm according to claim 1, wherein: the spray auxiliary holes (2010) are provided in plurality, and at least part of inner side walls of part of the spray auxiliary holes (2010) are arranged at an angle relative to the radial axis of the sub rotary spray arm (2).

5. A sub-rotary spray arm according to any one of claims 1 to 4, wherein: the device also comprises a small impeller (6) arranged in the spraying runner (2011) or the driving runner (2023), and water in the spraying runner (2011) or the driving runner (2023) drives the small impeller (6) to drive the sub rotary spray arm to rotate.

6. The utility model provides a spray arm structure, includes main spray arm (1), main spray arm (1) have inlet opening (10), first runner (100), jet orifice (13), first runner (100) intercommunication inlet opening (10) with jet orifice (13), its characterized in that: the rotary sub-spray arm further comprises the rotary sub-spray arm according to any one of claims 1-5, wherein the rotation axis of the rotary sub-spray arm (2) is arranged at an angle with the rotation axis of the main spray arm (1), the main spray arm (1) is provided with a containing groove (3), and the rotary sub-spray arm (2) is rotationally connected in the containing groove (3); the spraying flow passage (2011), the driving flow passage (2023) and the first flow passage (100) are communicated, so that water in the first flow passage (100) enters the spraying flow passage (2011) and the driving flow passage (2023) and drives the sub rotary spray arm (2) to rotate.

7. The spray arm structure of claim 6, wherein: the main spray arm (1) is provided with a cylinder part (4), the cylinder part (4) is rotationally connected with the sub rotary spray arm (2), the sub rotary spray arm (2) is sleeved or inserted into the cylinder part (4), and the cylinder part (4) is provided with a circulation cavity (41) communicated with the first flow channel (100), the spray flow channel (2011) and the driving flow channel (2023); the inner wall of the cylinder part (4) is provided with a positioning ring (42), and the end part of the sub rotary spray arm (2) is abutted against the end surface of the positioning ring (42).

8. The spray arm structure of claim 6, wherein: the rotary spraying device comprises a rotary spraying arm (2), a rotary column (21) and a rotary control mechanism, wherein the rotary column (21) is positioned at the tail end of the rotary spraying arm (2) in the length direction; the main spray arm (1) is provided with a claw which is positioned in the accommodating groove (3) and is connected with the tail end of the accommodating groove (3) in the length direction; the claw is provided with a buckling groove and a notch (2111), and the rotating column (21) is clamped into the buckling groove from the notch (2111) and is rotationally connected with the buckling groove.

9. A spray arm structure according to any one of claims 6-8, wherein: the main spray arm (1) comprises a spray arm upper sheet (11) and a spray arm lower sheet (12), and the accommodating groove (3) is formed in the spray arm upper sheet (11) and/or the spray arm lower sheet (12).

10. A spray arm structure according to claim 9, wherein: the upper spray arm piece (11) and the lower spray arm piece (12) are positioned at the edge of the accommodating groove (3) and are respectively provided with a clamping piece (8), and the upper and lower corresponding clamping pieces (8) are clamped and fixed.

11. A spray arm structure according to claim 9, wherein: the inside that is located holding tank (3) width direction of spray arm upper segment (11) and/or spray arm lower segment (12) is provided with runner (9) with inlet port (10) intercommunication, side orifice (15) have been seted up to spray arm upper segment (11) and/or spray arm lower segment (12).

12. A dishwasher appliance comprising a spray arm arrangement as claimed in any one of claims 6 to 11.

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