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

Abstract

The invention belongs to the technical field of dish washing machines, and discloses a water inlet structure of a spraying arm assembly, the spraying arm assembly and a dish washing machine. The water inlet structure of the spraying arm assembly comprises a water inlet cavity, a water outlet cavity and a water outlet cavity, and at least two water outlets are formed in the peripheral area of the water inlet cavity; the fixed seat is arranged in the water inlet cavity, a guide wall is arranged on the bottom wall of the fixed seat, the guide wall extends from the periphery of a central water inlet formed in the fixed seat to the peripheral area of the fixed seat, the extending tail end is located on one side of the water outlets, and a guide channel for communicating the central water inlet with one water outlet is formed between every two adjacent guide walls; the transition part is arranged on the guide wall; and the conducting component can cross over the transition part under the impact of water flow to enter the other guide channel from one guide channel to block the water outlet at the end part of the guide channel. In the using process, the water outlet is connected with the spraying arm, the spraying arm can alternately rotate clockwise and anticlockwise, the spraying coverage area and the cleaning area are increased, and the cleaning effect is improved.

Description

Technical Field

[0001] The invention belongs to the field of dishwashers, and in particular relates to a water inlet structure of a spray arm assembly, a spray arm assembly and a dishwasher. Background Art

[0002] A dishwasher is a device that automatically washes tableware such as bowls, chopsticks, plates, dishes, knives, forks, etc. With the improvement of people's living standards, more and more families have purchased dishwashers, which greatly saves the labor intensity and time of users. Dishwashers generally drive the spray arm to rotate through the water flow, and then spray water to the tableware through the spray arm to achieve the purpose of cleaning the tableware. The spray arm of an existing dishwasher can generally only rotate in one direction, and the position of each flushing is basically the same, resulting in a better cleaning effect on one side of the tableware, but a poor cleaning effect on the other side of the tableware. When some secondary pollutants are washed to the other side of the tableware, it is not easy to clean, and the overall cleaning effect is not ideal.

[0003] In view of this, the present invention is proposed. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a water inlet structure of a spray arm assembly, a spray arm assembly and a dishwasher which have a wide coverage and cleans more thoroughly.

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0006] In a first aspect, a water inlet structure of a spray arm assembly is provided, comprising:

[0007] A water inlet chamber, wherein at least two water outlets are arranged in the peripheral area thereof;

[0008] A fixed seat is arranged in the water inlet chamber, and a guide wall is arranged on the bottom wall thereof, wherein the guide wall extends from the periphery of the central water inlet arranged on the fixed seat to the peripheral area of ​​the fixed seat, and the extension end is located on one side of the water outlet, and a guide channel connecting the central water inlet and one of the water outlets is formed between two adjacent guide walls;

[0009] A transition portion, arranged on the guide wall;

[0010] The conducting component can pass over the transition portion under the impact of water flow, enter from one guiding channel into another guiding channel, and block the water outlet at the end of the guiding channel.

[0011] The solution provided by the present invention is to set a guide wall on the fixed seat in the water inlet chamber, form a guide channel between two adjacent guide walls, and set a transition part on the guide wall, and the conducting component can move from one guide channel to another guide channel across the transition part under the impact of the water flow, and alternately block at least one water outlet. When in use, the water outlet is connected to a spray arm, so that the spray arm can rotate clockwise and counterclockwise, thereby increasing the spray coverage and cleaning area, and washing more cleanly.

[0012] Furthermore, the fixing seat extends upwardly and obliquely from the outer periphery of the central water inlet along the radial direction of the central water inlet;

[0013] Under normal conditions, the conducting component is maintained at one end of the guiding channel close to the central water inlet;

[0014] After water starts to flow in, the conducting component moves along the guide channel under the impact of the water flow, and when reaching the position of the transition part, it passes over the transition part and enters another guide channel, and continues to move along the guide channel to the water outlet for blocking;

[0015] After the water inlet stops, the conducting component falls back to the periphery of the central water inlet along the current guiding channel under the action of gravity.

[0016] Furthermore, the water inlet structure of the spray arm assembly also includes:

[0017] The rotating member is covered above the fixed seat, and its outer periphery is rotatably connected to the fixed member;

[0018] After water starts to flow in, the rotating member guides the conducting component to jump from one guiding channel to another guiding channel;

[0019] After the water inlet stops, the conducting component moves from the water outlet along the current guide channel to the position of the central water inlet, driving the rotating part to rotate.

[0020] Furthermore, the guide wall has a bending portion, and the bending portion is extended along the tangent direction of the central water inlet; the transition portion is arranged on the bending portion and corresponds to the position of the water outlet.

[0021] Further, the bent portion has a first side wall facing the central water inlet and a second side wall facing the water outlet;

[0022] The angle between the first side wall and the bottom wall of the fixing base is greater than the angle between the second side wall and the bottom wall of the fixing base.

[0023] Furthermore, the guide wall further comprises a first portion and a second portion, wherein the first portion, the bent portion and the second portion are sequentially connected;

[0024] The first part and the second part both have a certain thickness and are centrally symmetrically arranged relative to the position of the bending portion.

[0025] Furthermore, the extended end of the guide wall is located on the same side of all the water outlets along the circumference of the fixing seat;

[0026] The first part of the guide wall is connected to the outer periphery of the central water inlet and extends toward the water outlet. The extended end is connected to the bending portion, and the bending portion extends along the tangent direction of the central water inlet. The extended end is connected to the second part, and the second part continues to extend toward the water outlet, with the end extending to one side of the water outlet.

[0027] Furthermore, the water inlet chamber also includes a shell, which is covered above the rotating member, and the outer peripheral edge of the shell is sealed and connected to the outer periphery of the fixing seat.

[0028] In a second aspect, a spray arm assembly is also provided, wherein the spray arm assembly comprises the water inlet structure of the above-mentioned spray arm assembly.

[0029] The spray arm assembly provided by the present invention adopts the above-mentioned water inlet structure, so that the spray arm can rotate alternately in forward and reverse directions, thereby increasing the spray coverage area and the cleaning area and improving the cleaning effect.

[0030] In a third aspect, the present invention further provides a dishwasher, comprising the above-mentioned spray arm assembly.

[0031] According to the solution provided by the present invention, since the above-mentioned spray arm assembly is installed on the dishwasher, the spray arm can rotate alternately in positive and negative directions, the spray range is larger, and the washing is cleaner.

[0032] After adopting the above technical scheme, the present invention has the following beneficial effects compared with the prior art.

[0033] 1. The water inlet structure of the spray arm assembly provided by the present invention is provided with a guide wall on the fixed seat, a guide channel is formed between two adjacent guide walls, and a transition portion is provided on the guide wall. The conducting component can move from one guide channel to another guide channel across the transition portion under the impact of the water flow, and alternately block at least one water outlet. When in use, the water outlet is connected to the spray arm, and the spray arm can rotate clockwise and counterclockwise, thereby increasing the spray coverage and cleaning area, and washing more cleanly.

[0034] 2. The water inlet structure of the spray arm assembly provided by the present invention has a transition portion extending along the tangent direction of the central water inlet, and its extension direction is arranged corresponding to the water outlet, so that the conductive component can move toward the water outlet after passing over the transition portion to block the water outlet.

[0035] 3. The water inlet structure of the spray arm assembly provided by the present invention has a first side wall and a second side wall at the bending portion, and the angle between the first side wall and the bottom wall of the fixed seat is greater than the angle between the second side wall and the bottom wall of the fixed seat, and the first side wall is arranged to face away from the water outlet, so that when the conducting component moves from the central water inlet to the water outlet, it can cross the transition portion and move from one guide channel to another under the impact of the water flow; when the conducting component moves from the water outlet to the central water inlet, it is blocked by the second side wall and has no force from the water flow, and can only move along the guide channel in which it is located.

[0036] 4. The spray arm assembly provided by the present invention adopts the above-mentioned water inlet structure, so that the spray arm can rotate alternately in forward and reverse directions, thereby increasing the spray coverage area and the cleaning area and improving the cleaning effect.

[0037] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the accompanying drawings:

[0039] Figure 1 It is a schematic diagram of the fixing seat structure of the water inlet structure of the present invention;

[0040] Figure 2 It is a schematic diagram of the water inlet structure of the spray arm assembly of the present invention;

[0041] Figure 3 It is a schematic diagram of the structure of the rotating parts of the water inlet structure of the present invention;

[0042] Figure 4 It is a schematic diagram of the structure of the spray arm assembly of the present invention;

[0043] Figure 5 The present invention Figure 4 A magnified view of the upper water inlet structure;

[0044] Figure 6 It is a schematic diagram of the cross-sectional structure of the spray arm assembly of the present invention.

[0045] In the figure: 1. Spray arm body; 2. Water inlet structure;

[0046] 201, fixed seat; 202, rotating member; 203, conducting member; 204, central water inlet; 205, water outlet; 206, guide channel; 207, magnetic member; 208, annular structure;

[0047] 2011, guide wall; 2012, first part; 2013, transition part; 2014, second part; 2015, first side wall; 2016, second side wall; 2015, first side part; 2016, second side wall;

[0048] 2021, movement channel; 2022, limiting portion; 2023, blocking portion.

[0049] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but are intended to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0050] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0051] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0052] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0053] like Figures 1 to 6 As shown, the present invention provides a water inlet structure of a spray arm assembly on one hand.

[0054] The water inlet structure 2 of the spray arm assembly comprises:

[0055] The water inlet chamber has at least two water outlets 205 disposed in its peripheral area;

[0056] The fixing seat 201 is arranged in the water inlet chamber, and a guide wall 2011 is arranged on the bottom wall thereof. The guide wall 2011 extends from the periphery of the central water inlet arranged on the fixing seat 201 to the peripheral area of ​​the fixing seat 201, and the extension end is located on one side of the water outlet 205. A guide channel 206 connecting the central water inlet 204 and one of the water outlets 205 is formed between two adjacent guide walls 2011;

[0057] A transition portion 2013, arranged on the guide wall 2011;

[0058] The conducting component 203 can pass over the transition portion 2013 under the impact of water flow, enter from one guiding channel 206 into another guiding channel 206 , and block the water outlet 205 at the end of the guiding channel 206 .

[0059] In a second aspect, a spray arm assembly is also provided, wherein the spray arm assembly comprises the water inlet structure 2 of the above-mentioned spray arm assembly.

[0060] According to a third aspect, a dishwasher is provided, comprising the above-mentioned spray arm assembly.

[0061] In the dishwasher provided by the present invention, the conducting component 203 can jump from one guide channel 206 to another guide channel 206 under the impact of the water flow, alternately blocking at least one water outlet 205, that is, alternately blocking the spray arm arranged at the water outlet 205, so that the spray arm can alternately rotate clockwise and counterclockwise, thereby increasing the spray coverage and the cleaning area, and washing more cleanly.

[0062] Embodiment 1

[0063] like Figure 1 As shown, this embodiment provides a water inlet structure 2 of a spray arm assembly.

[0064] The water inlet chamber has at least two water outlets 205 disposed in its peripheral area;

[0065] The fixing seat 201 is arranged in the water inlet chamber, and a guide wall 2011 is arranged on the bottom wall thereof. The guide wall 2011 extends from the periphery of the central water inlet arranged on the fixing seat 201 to the peripheral area of ​​the fixing seat 201, and the extension end is located on one side of the water outlet 205. A guide channel 206 connecting the central water inlet 204 and one of the water outlets 205 is formed between two adjacent guide walls 2011;

[0066] A transition portion 2013, arranged on the guide wall 2011;

[0067] The conducting component 203 can pass over the transition portion 2013 under the impact of water flow, enter from one guiding channel 206 into another guiding channel 206 , and block the water outlet 205 at the end of the guiding channel 206 .

[0068] The water inlet structure 2 of the spray arm assembly in this embodiment includes a water inlet chamber and a conducting component 203. The water inlet chamber includes a fixed seat 201, on which a guide wall 2011 is provided, on which a transition portion 2013 is provided, and two adjacent guide walls 2011 form a guide channel 206. A central water inlet 204 is provided at the center position of the fixed seat 201 of the water inlet chamber, and at least two water outlets 205 are provided at the outer peripheral edge position of the water inlet chamber. A guide channel 206 is also provided on the fixed seat 201, one end of the guide channel 206 is connected to the central water inlet 204, and the other end extends toward the water outlet 205, and the extended end is the water outlet 205. The number of the guide channels 206 is the same as the number of the water outlets 205.

[0069] Specifically, the fixing seat 201 has a bottom wall, and at least two guide walls 2011 are protruding from the bottom wall, and the guide channel 206 is formed between two adjacent guide walls 2011. More specifically, the guide wall 2011 extends from the periphery of the central water inlet 204 to the peripheral area of ​​the fixing seat 201, and the extended end of the guide wall 2011 is located at one side of the water outlet 205.

[0070] The fixing seat 201 extends upward from the outer periphery of the central water inlet 204 along the radial direction of the central water inlet 204. Therefore, the conducting component 203 can move from the water outlet 205 to the central water inlet 204 under the action of its own gravity after it is not subjected to the force of the water flow impact.

[0071] A transition portion 2013 is also provided on the guide wall 2011. When the conducting component 203 is at the edge of the central water inlet 204, water flows. Under the impact of the water flow, the conducting component 203 moves along the guide channel 206 to the position of the transition portion 2013 on the guide wall 2011, and passes over the transition portion 2013 to enter another guide channel 206 from the guide channel 206 where it is located.

[0072] When in use, the water outlet 205 is connected to a spray arm provided with spray holes in different directions, so that the spray arm can rotate clockwise and counterclockwise, thereby increasing the spray coverage and cleaning area, and washing more thoroughly.

[0073] The solution of this embodiment also includes: the water inlet structure 2 of the spray arm assembly also includes:

[0074] The rotating member 202 is disposed above the fixed seat 201, and its outer periphery is rotatably connected to the fixed member;

[0075] After water starts to flow in, the rotating member 202 guides the conducting component 203 to jump from one guiding channel 206 to another guiding channel 206;

[0076] After the water inlet stops, the conducting component 203 moves from the water outlet 205 along the current guide channel 206 to the position of the central water inlet 204, driving the rotating member 202 to rotate.

[0077] In the above scheme, the water inlet chamber includes a fixed seat 201 and a rotating member 202. The fixed seat 201 is a circular structure, the central water inlet 204 is arranged at the center of the circular structure, and the guide channel 206 is arranged on the bottom wall of the fixed seat 201. The rotating member 202 is covered above the fixed seat 201, and its periphery is rotatably connected to the periphery of the fixed member. The water inlet chamber also includes a shell, which is covered above the rotating member 202, and the outer peripheral edge of the shell is sealed and connected to the periphery of the fixed seat 201. That is to say, in the above scheme, the shell is a cylindrical groove structure with an opening facing downward, the rotating member 202 is arranged in the groove, the opening edge of the groove structure is sealed and connected to the periphery of the fixed seat 201, and the outer periphery of the shell is provided with a water outlet 205. It is equivalent to that the water inlet chamber is surrounded by the shell and the fixed seat 201, and the rotating member 202 is provided with an opening, and the opening corresponds to the setting position of the water outlet 205 on the shell, so that when the conducting component 203 moves to the opening and blocks the corresponding water outlet 205. After the water starts to flow in, the rotating member 202 guides the conducting component 203 to jump from one guide channel 206 to another guide channel 206. After the water stops flowing in, when the conducting component 203 moves from the water outlet 205 along the current guide channel 206 to the position of the central water inlet 204, it drives the rotating member 202 to rotate.

[0078] Of course, in other solutions of this embodiment, the shell is a cylindrical structure, the water outlet 205 is arranged on the outer periphery of the shell, and the fixed seat 201 and the rotating member 202 are both arranged inside the shell.

[0079] The water inlet chamber also has a conducting component 203, and the conducting component 203 moves in the guide channel 206. When the conducting component 203 is not subjected to the force of the water flow, it can move along the guide channel 206 where it is located. That is, it moves from the position of the water outlet 205 along the guide channel 206 where it is located to the edge of the central water inlet 204. When the conducting component 203 is subjected to the force of the water flow impact, it moves from the edge of the central water inlet 204 to the water outlet 205, and while moving, it can jump from the guide channel 206 where it is located to another guide channel 206, and move along another guide channel 206 to another water outlet 205 and block it. In other words, with each water stop and water re-intake, the conducting component 203 can alternately block different water outlets 205.

[0080] The solution of this embodiment also includes: the guide wall 2011 has a bending portion, and the bending portion is extended along the tangent direction of the central water inlet 204; the jump portion 2013 is arranged on the bending portion and corresponds to the position of the water outlet 205.

[0081] The bent portion has a first side wall 2015 facing the central water inlet 204 and a second side wall 2016 facing the water outlet 205;

[0082] The angle between the first side wall 2015 and the bottom wall of the fixing base 201 is greater than the angle between the second side wall 2016 and the bottom wall of the fixing base 201 .

[0083] The guide wall 2011 further includes a first portion 2012 and a second portion 2014, wherein the first portion 2012, the bent portion and the second portion 2014 are sequentially connected;

[0084] The first portion 2012 and the second portion 2014 both have a certain thickness and are centrally symmetrically arranged relative to the location of the bending portion.

[0085] The extended end of the guide wall 2011 is located on the same side of all the water outlets 205 along the circumference of the fixing seat 201;

[0086] The first part 2012 of the guide wall 2011 is connected to the outer periphery of the central water inlet 204 and extends toward the water outlet 205. The extended end is connected to the bending portion, and the bending portion extends along the tangent direction of the central water inlet 204. The extended end is connected to the second part 2014. The second part 2014 continues to extend toward the water outlet 205, and the end extends to one side of the water outlet 205.

[0087] Next, the specific setting position and shape of the guide wall 2011 in the above solution are described in detail:

[0088] The guide wall 2011 is a convex rib protruding from the bottom wall of the fixing seat 201 and extending from the outer periphery of the central water inlet 204 along the radial direction of the central water inlet 204 to the position where the water outlet 205 is located. The convex rib has a certain thickness.

[0089] The guide wall 2011 includes three parts, namely a first part 2012, a bending part and a second part 2014 which are connected in sequence, and the connection part is in an arc shape.

[0090] The first part 2012 of the guide wall 2011 is connected to the outer periphery of the central water inlet 204, and extends along the radial direction of the central water inlet 204 toward the water outlet 205. The extended end is connected to the bending portion, and the bending portion extends along the tangent direction of the central water inlet 204. The extended end is connected to the second part 2014. The second part 2014 continues to extend toward the water outlet 205, and the end extends to one side of the water outlet 205.

[0091] It is worth noting that the number and position of the guide walls 2011 are arranged in a one-to-one correspondence with the number and position of the water outlets 205. When multiple guide walls 2011 are provided, the extended ends of the second portions 2014 of the guide walls 2011 are all located on the same side of all the water outlets 205 along the circumference of the fixing seat 201.

[0092] In the solution of this embodiment, the bending portion on the guide wall 2011 is referred to as the transition portion 2013, which is extended along the tangent direction of the central water inlet 204 and is arranged corresponding to the water inlet. In addition, the extending direction of the bending portion is from a position corresponding to one side of the water inlet to a position corresponding to the other side of the water outlet 205.

[0093] The guide wall 2011 has a first side wall 2015 and a second side wall 2016 at the position of the bent portion, the first side wall 2015 is arranged toward the central water inlet 204, and the second side wall 2016 is arranged toward the water outlet 205. In addition, the first side wall 2015 and the second side wall 2016 have different angles with the inner wall of the fixing seat 201, and the angle between the first side wall 2015 and the bottom wall of the fixing seat 201 is greater than the angle between the second side wall 2016 and the bottom wall of the fixing seat 201.

[0094] In the solution of this embodiment, the angle between the second side wall 2016 and the bottom wall of the fixing seat 201 is less than or equal to ninety degrees. The angle between the first side wall 2015 and the bottom wall of the fixing seat 201 is greater than ninety degrees. In other words, the first side wall 2015 is arranged with a slope, and the second side wall 2016 has no slope. When the conducting component 203 moves to the position of the first side wall 2015, under the force of the water flow, it can jump from the guide channel 206 where it is located to another guide channel 206 along the slope on the first side wall 2015. Since the second side wall 2016 has no slope, the conducting component 203 cannot move from the position of the second side wall 2016 of the jumping part 2013 to the position of the first side wall 2015.

[0095] In a preferred solution of this embodiment, the angle between the second side wall 2016 and the bottom wall of the fixing base 201 is ninety degrees; the angle between the first side wall 2015 and the bottom wall of the fixing base 201 is one hundred and thirty-five degrees.

[0096] As a preferred solution of this embodiment, the first portion 2012 and the second portion 2014 of the guide wall 2011 are centrally symmetrically arranged relative to the position of the bending portion.

[0097] The water inlet structure 2 of the spray arm assembly provided by the present invention has a jump portion 2013 extending along the tangent direction of the central water inlet 204, and its extension direction is corresponding to the water outlet 205, so that the conductive component 203 can move toward the water outlet 205 after crossing the jump portion 2013 to block the water outlet 205. Furthermore, since the bending portion has a first side wall 2015 and a second side wall 2016, the angle between the first side wall 2015 and the bottom wall of the fixing seat 201 is greater than the angle between the second side wall 2016 and the bottom wall of the fixing seat 201, and the first side wall 2015 is arranged to face away from the water outlet 205, when the conducting component 203 moves from the central water inlet 204 toward the water outlet 205, it can cross the transition portion 2013 and move from one guide channel 206 to another guide channel 206 under the impact of the water flow; when the conducting component 203 moves from the water outlet 205 toward the central water inlet 204, it is blocked by the second side wall 2016 and without the force of the water flow, it can only move along the guide channel 206 in which it is located.

[0098] Combination Figures 1 to 3 As shown, the solution of this embodiment also includes: the rotating member 202 has a movement channel 2021 inside, which can move along the movement channel 2021 under the impact of water flow, jump from one guide channel 206 to another guide channel 206, and alternately block at least one water outlet 205.

[0099] The rotating member 202 includes a top wall and two side walls, and the movement channel 2021 is a receiving cavity surrounded by the top wall and the two side walls, and the receiving cavity is arranged at a position above the guide channel 206;

[0100] After the water flow impact is eliminated, the conducting component 203 moves from the water outlet 205 to the central water inlet 204 along the current driving conduction, pushes the side wall of the moving channel 2021, and drives the rotating member 202 to rotate.

[0101] A limiting portion 2022 is provided between the side wall of the motion channel 2021 and the outer periphery of the rotating member 202. The limiting portion 2022 is a horizontally arranged plate-like structure, which controls the conducting component 203 to always jump to the adjacent conducting channel in the same direction in the circumferential direction.

[0102] A blocking portion 2023 is provided in the accommodating cavity for blocking the conducting component 203 from entering the central water inlet 204 .

[0103] The blocking portion 2023 is at least one inclined structure inclined from the top wall toward the central water inlet 204 .

[0104] The conducting component 203 is a spherical structure, and the diameter of the conducting component 203 is larger than the minimum distance from the outer peripheral edge of the central water inlet 204 to the inclined surface structure.

[0105] Next, the specific structure of the rotating member 202 described in the above solution is described in detail:

[0106] The rotating member 202 in this embodiment is a circular structure that is covered above the fixed seat 201, and its outer periphery is rotatably connected to the outer periphery of the fixed seat 201. The rotating member 202 has a motion channel 2021 for the conductive component 203 to move. The guide channel 206 is a receiving cavity surrounded by a top wall and two side walls, and the motion channel 2021 is arranged above the guide channel 206.

[0107] The rotating member 202 further includes a limiting portion 2022, which is a plate-like structure arranged between the side wall of the moving channel 2021 and the outer periphery of the rotating member 202, so as to control the conducting member 203 to always jump to the adjacent conducting channel along one direction in the circumferential direction. When in use, the water inlet structure 2 is installed on the spray arm body 1, and the water outlet 205 of the water inlet structure 2 is arranged opposite to the water inlet of the spray arm body 1. When the conducting member 203 moves from the position of the water outlet 205 along the guide channel 206 to the edge of the central water inlet 204, the side wall of the guide channel 206 is pushed to rotate, so that the water inlet on the water inlet structure 2 corresponds to the water inlet on another spray arm body 1. The purpose of setting the limiting portion 2022 is to prevent the conducting member 203 from making irregular movements under the force of the water flow, and to control the conducting member 203 to always jump to the adjacent conducting channel along the same direction in the circumferential direction.

[0108] The rotating member 202 is also provided with a blocking portion 2023, which is an inclined surface structure inclined from the top wall of the accommodating cavity toward the central water inlet 204, so as to prevent the conducting component 203 from moving into the central water inlet 204. In this solution, the conducting component 203 is a spherical structure, and the diameter of the conducting component 203 is greater than the minimum distance from the outer peripheral edge of the central water inlet 204 to the inclined surface structure.

[0109] The solution of this embodiment also includes that, under normal conditions, the conducting component 203 is maintained at one end of the guide channel 206 close to the central water inlet 204;

[0110] After water starts to flow in, the conducting component 203 moves along the guide channel 206 under the impact of the water flow, and when reaching the position of the transition portion 2013, it passes over the transition portion 2013 and enters another guide channel 206, and continues to move along the guide channel 206 to the water outlet 205 for blocking;

[0111] After the water inlet stops, the conducting component 203 falls back to the periphery of the central water inlet 204 along the current guiding channel 206 under the action of gravity.

[0112] In the scheme of this embodiment, the conducting component 203 has three states, namely, in normal state, after water inlet starts, and after water inlet stops. When it is in normal state, the conducting component 203 remains at one end of the guide channel 206 close to the central water inlet 204, that is, the conducting component 203 is stuck in the guide channel 206 at the edge of the central water inlet 204 by the limit plate. When water inlet starts, water flows into the water inlet chamber through the central water inlet 204, impacting the conducting component 203 to move along the guide channel 206 toward the water outlet 205, and when it reaches the position of the transition part 2013 on the guide wall 2011, it passes over the transition part 2013 and enters another guide channel 206, and continues to move along the guide channel 206 to the water outlet 205 for blocking. When water inlet stops, the conducting component 203 moves along the current guide channel 206 under the action of gravity, and the conducting component 203 pushes the side wall of the guide channel 206 to rotate the guide rotating member 202, and the conducting component 203 falls back to the periphery of the central water inlet 204 and is stuck by the blocking part 2023 and stops moving.

[0113] In the above scheme, a central water inlet 204 is provided in the water inlet chamber, two water outlets 205 are evenly arranged on the periphery of the water inlet chamber, two guide channels 206 are arranged on the bottom wall of the fixed seat 201, a conducting component 203 is arranged in the moving channel 2021, and a blocking portion 2023 composed of an inclined structure is arranged in the moving channel 2021.

[0114] In the preferred solution of this embodiment, there is a central water inlet 204 in the water inlet chamber, four water outlets 205 are evenly arranged on the periphery of the water inlet chamber, four guide channels 206 are arranged on the bottom wall of the fixed seat 201, two conducting components 203 are arranged in the movement channel 2021, and two blocking parts 2023 composed of inclined structures are arranged in the movement channel 2021. Among them, the two blocking parts 2023 are inclinedly extended from the top wall of the accommodating chamber toward the central water inlet 204, and their extended ends abut against each other. It is worth noting that the two inclined structures are arranged opposite to each other, and are respectively arranged corresponding to the water outlets 205 blocked by the conducting components 203.

[0115] In this embodiment, the positions of the extended ends of the two blocking portions 2023 are on the perpendicular midline of the central water inlet 204. Of course, the extended ends can also be at other positions as long as they can block the conductive component 203 from entering the central water inlet 204.

[0116] In the solution provided by this embodiment, the conducting component 203 can jump from one guiding channel 206 to another guiding channel 206 under the impact of water flow, and alternately block the water outlet 205 in at least one water inlet chamber.

[0117] Embodiment 2

[0118] This embodiment provides a spray arm assembly, which includes the water inlet structure 2 of the spray arm assembly described in the above embodiment.

[0119] The solution of this embodiment includes: at least two spray arm bodies 1 are extended outward from the edge of the shell, and the water outlets 205 are arranged in a one-to-one correspondence with the spray arm bodies 1 and are connected.

[0120] In the above scheme, the spray arm body 1 is directly arranged and connected to the water outlet 205 of the water inlet structure 2 one by one during use, and the spray holes on the spray arm body 1 are arranged in different directions, so that the spray arm body 1 can be rotated alternately clockwise or counterclockwise to increase the spray area.

[0121] like Figure 4-6 As shown, in another solution of this embodiment, the water inlet structure 2 includes a fixed seat 201 and a rotating member 202 installed on the fixed seat 201, and no housing is provided. The spray arm assembly includes a circular ring structure 208 and a cover body covering the circular ring structure 208, the outer periphery of the fixed seat 201 is fixedly connected to the inner side wall of the circular ring structure 208, at least two spray arm bodies 1 are extended outward from the edge of the circular ring structure 208, and the water outlet 205 is provided corresponding to the spray arm body 1.

[0122] In the solution of this embodiment, the spray arm assembly includes a hollow annular structure 208, and a spray arm body 1 is extended outward from the edge of the annular structure 208, and the spray holes on the two spray arm bodies 1 are arranged in the same direction. Since the two spray arm bodies 1 are arranged on the same horizontal line, the spray holes are arranged upward or downward. A water inlet is arranged at the connection position between the spray arm body 1 and the annular structure. The inner side wall of the annular structure 208 is fixedly connected to the outer periphery of the fixing seat 201, and the water inlet on the spray arm body 1 is arranged corresponding to the water outlet 205.

[0123] When in use, water flows through the central water inlet 204, and the conductive component 203 at the edge of the central water inlet 204 is pushed to the position of the water inlet of the first spray arm body 1 to block the water inlet, and the second spray arm body 1 rotates clockwise to spray water. When the water inlet stops, the conductive component 203 moves from the position of the water inlet toward the central water inlet 204, and pushes the side wall of the moving channel 2021 on the rotating member 202, so that the rotating member 202 rotates, and the water outlet 205 of the water inlet chamber corresponds to the water inlet on the second spray arm body 1. When water flows into the central water inlet 204 again, the conductive component 203 passes over the transition part 2013 to block the water inlet on the second spray arm body 1, so that the second spray arm body 1 does not rotate, and the first spray arm body 1 rotates counterclockwise to spray water.

[0124] The solution provided in this embodiment can control the spray arm to alternately open the water inlet of the first spray arm body 1 and close the water inlet of the second spray arm body 1, open the water inlet of the second spray arm body 1 and close the water inlet of the first spray arm body 1, so that the spray arm body 1 can rotate alternately clockwise and counterclockwise to spray water, thereby increasing the spray area and enhancing the cleaning effect.

[0125] As a preferred implementation scheme of this embodiment: four spray arm bodies 1 are evenly arranged along the edge of the shell;

[0126] Two conducting components 203 are provided, and the two conducting components 203 alternately close or open two spray arm bodies 1 that are arranged opposite to each other.

[0127] In the above scheme, four spray arm bodies 1 are extended outward from the edge of the annular structure 208, and two spray arm bodies 1 on the same horizontal line form a group, and the spray holes on the two groups of spray arms are arranged in different directions. One group of spray holes are arranged in a clockwise direction, and the other group of spray holes are arranged in a counterclockwise direction. A central water inlet 204 is arranged in the water inlet chamber, four guide channels 206 are arranged on the bottom wall of the fixed seat 201, four guide channels 206 are arranged on the bottom wall of the fixed seat 201, two conducting components 203 are arranged in the moving channel 2021, and two blocking parts 2023 composed of inclined structures are arranged in the moving channel 2021.

[0128] When in use, water flows through the central water inlet 204, and the two conducting components 203 at the edge of the central water inlet 204 are pushed to the position of the two water inlets of the first group of spray arm bodies 1 to block the two water inlets, and the second group of spray arm bodies 1 rotates clockwise to spray water. When the water inlet stops, the two conducting components 203 move from the position of the water inlet toward the central water inlet 204, and push the side wall of the moving channel 2021 on the rotating member 202, so that the rotating member 202 rotates, and the water outlet 205 of the water inlet chamber corresponds to the two water inlets on the second group of spray arm bodies 1. When water flows into the central water inlet 204 again, the two conducting components 203 respectively cross the transition parts 2013 on the two guide walls 2011 to block the two water inlets on the second group of spray arm bodies 1, so that the first group of spray arm bodies 1 rotates counterclockwise to spray water.

[0129] In other solutions of this embodiment, the number of spray arms may be another number greater than or equal to 2, and the number of conductive components 203 may be another number greater than or equal to 1.

[0130] The solution provided in this embodiment increases the number of spray arm bodies 1, thereby further increasing the spray range and providing a wide spray area.

[0131] The solution of this embodiment also includes: the conductive component 203 is a spherical structure, and a magnetic attraction area is provided on the spherical structure;

[0132] The spray arm assembly further includes a magnetic attraction member 207 that can generate magnetic attraction force on the magnetic attraction area; the magnetic attraction member 207 is a circular structure and is embedded in the spray arm body 1 at the water outlet 205 .

[0133] The gravity of the spherical structure is greater than the suction force of the magnetic attraction member 207 .

[0134] In the above scheme, a circular magnetic component 207 is embedded at the position of the water inlet of the spray arm body 1, and the magnetic component 207 has a magnetic attraction. The conductive component 203 is a spherical structure, and a magnetic attraction area is provided on the spherical structure. When the spherical structure moves to the position of the water inlet on the spray arm body 1, the magnetic component 207 provides a suction force to the spherical structure, thereby increasing the sealing between the spherical structure and the water inlet. In the scheme of this embodiment, the outer surface of the spherical structure is a magnetic attraction area, so that no matter where the spherical structure is blocked with the water inlet of the spray arm body 1, it can be attracted by the magnetic attraction of the magnetic component 207.

[0135] Regarding the above solution, it is worth noting that the suction force of the magnetic element 207 is smaller than the gravity of the spherical structure, so that the spherical structure is no longer affected by the force of the water flow, and the spherical structure can move to the edge of the central water inlet 204 under the action of its own gravity.

[0136] In the solution provided in this embodiment, the spray arm body 1 can rotate clockwise or counterclockwise alternately, thereby increasing the spraying area.

[0137] Embodiment 3

[0138] This embodiment provides a dishwasher, on which the spray arm assembly described in the second embodiment is installed.

[0139] The dishwasher provided in this embodiment is equipped with a motor. The motor starts to control water inflow into the dishwasher. Water flows through the pipeline and the central water inlet 204 into the water inlet chamber, impacts the conductive component 203 in the water inlet chamber to move to the position of the water outlet 205 to block the water outlet 205, and the water flows through the unblocked water outlet 205 into the spray arm body 1, causing the spray arm body 1 to rotate and spray. When the motor stops, water inflow stops, and the conductive component 203 moves along the guide channel 206 to the edge of the central water inlet 204 under the action of its own gravity, and is stuck by the blocking part 2023. When water inflows again, the conductive component 203 is impacted to move to the position of another water outlet 205 to block the other water outlet 205, and the spray arm body 1 corresponding to the unblocked water outlet 205 rotates and sprays.

[0140] In the solution provided in this embodiment, the spray arm can rotate clockwise and counterclockwise alternately, thereby increasing the spray area and making the dishes in the dishwasher cleaner.

[0141] The above is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment, it is not used to limit the present invention. Any technician familiar with this patent can make some changes or modify the technical contents suggested above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the solution of the present invention.

Claims

1. A water inlet structure of a spray arm assembly, characterized in that: include: A water inlet chamber, wherein at least two water outlets are arranged in the peripheral area thereof; A fixed seat is arranged in the water inlet chamber, and a guide wall is arranged on the bottom wall thereof, wherein the guide wall extends from the periphery of the central water inlet arranged on the fixed seat to the peripheral area of ​​the fixed seat, and the extension end is located on one side of the water outlet, and a guide channel connecting the central water inlet and one of the water outlets is formed between two adjacent guide walls; A transition portion, arranged on the guide wall; The conducting component can pass over the transition portion under the impact of water flow, enter from one guiding channel into another guiding channel, and block the water outlet at the end of the guiding channel.

2. The water inlet structure of a spray arm assembly according to claim 1, characterized in that: The fixing seat extends upwardly and obliquely from the outer periphery of the central water inlet along the radial direction of the central water inlet; Under normal conditions, the conducting component is maintained at one end of the guiding channel close to the central water inlet; After water starts to flow in, the conducting component moves along the guide channel under the impact of the water flow, and when reaching the position of the transition part, it passes over the transition part and enters another guide channel, and continues to move along the guide channel to the water outlet for blocking; After the water inlet stops, the conducting component falls back to the periphery of the central water inlet along the current guiding channel under the action of gravity.

3. The water inlet structure of a spray arm assembly according to claim 2, characterized in that: The water inlet structure of the spray arm assembly also includes: The rotating member is covered above the fixed seat, and its outer periphery is rotatably connected to the fixed member; After water starts to flow in, the rotating member guides the conducting component to jump from one guiding channel to another guiding channel; After the water inlet stops, the conducting component moves from the water outlet along the current guide channel to the position of the central water inlet, driving the rotating part to rotate.

4. The water inlet structure of a spray arm assembly according to claim 1, characterized in that: The guide wall has a bending portion, and the bending portion is extended along the tangent direction of the central water inlet; the transition portion is arranged on the bending portion and corresponds to the position of the water outlet.

5. The water inlet structure of the spray arm assembly according to claim 4, characterized in that: The bent portion has a first side wall facing the central water inlet and a second side wall facing the water outlet; The angle between the first side wall and the bottom wall of the fixing base is greater than the angle between the second side wall and the bottom wall of the fixing base.

6. The water inlet structure of the spray arm assembly according to claim 5, characterized in that: The guide wall further comprises a first portion and a second portion, wherein the first portion, the bent portion and the second portion are sequentially connected; The first part and the second part both have a certain thickness and are centrally symmetrically arranged relative to the position of the bending portion.

7. The water inlet structure of the spray arm assembly according to claim 6, characterized in that: The extended end of the guide wall is located on the same side of all the water outlets along the circumference of the fixing seat; The first part of the guide wall is connected to the outer periphery of the central water inlet and extends toward the water outlet. The extended end is connected to the bending portion, and the bending portion extends along the tangent direction of the central water inlet. The extended end is connected to the second part, and the second part continues to extend toward the water outlet, with the end extending to one side of the water outlet.

8. The water inlet structure of the spray arm assembly according to claim 3, characterized in that: The water inlet chamber also includes a shell, which is covered above the rotating member, and the outer peripheral edge of the shell is sealed and connected to the outer periphery of the fixing seat.

9. A spray arm assembly, characterized in that: The spray arm assembly comprises a water inlet structure of a spray arm assembly as described in any one of claims 1 to 8.

10. A dishwasher, characterized in that: The dishwasher comprises the spray arm assembly according to claim 9 above.

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