Spraying structure and dish washing machine

Abstract

The invention relates to the technical field of dish-washing machines, particularly provides a spraying structure and a dish-washing machine, and aims to solve the problem that an existing dish-washing machine is poor in washing effect. Therefore, the spraying structure comprises a spraying main body, the spraying main body is provided with a rotating axis, a first flow channel and a second flow channel which are independent of each other are formed in the spraying main body, and the first flow channel and the second flow channel are both provided with spraying openings in a communicating mode; the first flow channel is provided with at least one first nozzle in a communicating mode, and fluid can generate driving torque in the first direction on the spraying body when being sprayed out through the first nozzle; the second flow channel is provided with at least one second nozzle in a communicating mode, when the fluid is sprayed out through the second nozzle, driving torque in the second direction can be generated on the spraying body, and the first direction is opposite to the second direction. The spraying main body of the dish washing machine has a two-way rotating mode, so that spraying is more uniform, and the cleaning effect is better.

Description

Technical Field

[0001] The present application relates to the technical field of dishwashers, and specifically provides a spray structure and a dishwasher. Background Art

[0002] The dishwasher is one of the indispensable household appliances in modern families. It can help us solve the tedious washing work in the kitchen in an efficient and convenient way. The spray arm is one of the important parts of the dishwasher. The spray arm is provided with spray holes. When the spray arm rotates, it sprays the fluid mixed with detergent to different positions through the spray holes to complete the tableware cleaning work.

[0003] In some related technologies, the spray arm of the dishwasher can only rotate in one direction. The one-way rotating spray arm will make the spray range uneven, making it difficult to thoroughly clean local corners, thereby affecting the washing effect.

[0004] Accordingly, the art needs a new technical solution of a spray structure to solve the above problems. Summary of the invention

[0005] The present application aims to solve the above technical problem, that is, to solve the problem that the existing dishwasher has poor washing effect.

[0006] In a first aspect, the present application provides a spray structure, comprising:

[0007] A spray body, wherein the spray body has a rotation axis, and a first flow channel and a second flow channel independent of each other are formed in the spray body, and the first flow channel and the second flow channel are both connected and provided with a spray port;

[0008] The first flow channel is connected to at least one first nozzle, and when the fluid is sprayed through the first nozzle, it can generate a driving torque along a first direction on the spray body;

[0009] The second flow channel is connected to at least one second nozzle, and when the fluid is sprayed through the second nozzle, it can generate a driving torque along a second direction on the spray body, and the first direction is opposite to the second direction.

[0010] Optionally, the spray body includes a first spray arm and a second spray arm that are arranged to intersect each other, the first flow channel is located in the first spray arm, and the second flow channel is located in the second spray arm.

[0011] Optionally, the first flow channel is a through flow channel, and the first flow channel divides the second flow channel into a first area and a second area that are independent of each other;

[0012] The spray body further includes an outer cylinder and an inner cylinder arranged at the intersection of the first spray arm and the second spray arm, the fluid can enter the first flow channel through the inner cylinder, and the fluid can enter the first area and the second area respectively through the outer cylinder.

[0013] Optionally, the first flow channel and the second flow channel are both through-flow channels, and the first flow channel and the second flow channel are located in different planes.

[0014] Optionally, the first spray arm is provided with the first nozzles on both sides of the rotation axis, and the second spray arm is provided with the second nozzles on both sides of the rotation axis.

[0015] Optionally, a plurality of the first nozzles are disposed on each side of the rotation axis, and a plurality of the second nozzles are disposed on each side of the rotation axis.

[0016] Optionally, when the plurality of first nozzles rotate around the rotation axis, a plurality of first spraying trajectories are formed, and each of the first spraying trajectories does not overlap with each other; when the plurality of second nozzles rotate around the rotation axis, a plurality of second spraying trajectories are formed, and each of the second spraying trajectories does not overlap with each other.

[0017] Optionally, the cross-sectional area of ​​the first nozzle gradually increases along the fluid ejection direction; and the cross-sectional area of ​​the second nozzle gradually increases along the fluid ejection direction.

[0018] In a second aspect, the present application provides a dishwasher, comprising:

[0019] A spray structure as described in any one of the first aspects.

[0020] Optionally, it also includes:

[0021] a control valve, which is communicated with the first flow channel and the second flow channel respectively;

[0022] A controller is connected to the control valve for controlling the operation of the control valve to change the flow values ​​of the first flow channel and the second flow channel.

[0023] The above one or more technical solutions of this application have at least one or more of the following Beneficial effects:

[0024] In the technical solution for implementing the present application, the spray body is provided with two independent first flow channels and second flow channels, the first flow channel is connected to at least one first nozzle, and the second flow channel is connected to at least one second nozzle. The reaction force generated by the injection of fluid by the first nozzle and the second nozzle can make the spray body rotate in two opposite directions. This two-way rotation mode can reduce the problem of uneven spraying of the spray body, thereby improving the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The preferred embodiments of the present application are described below in conjunction with the accompanying drawings, in which:

[0026] Figure 1 is a schematic diagram of the first state structure of the spray structure provided in an embodiment of the present application;

[0027] Figure 2 yes Figure 1 The internal structure diagram of the spray structure provided in;

[0028] Figure 3 yes Figure 1 The enlarged schematic diagram of the structure of part A of the spray structure provided in;

[0029] Figure 4 It is a schematic diagram of the second state structure of the spray structure provided in the embodiment of the present application. Reference numerals list :

[0030] 1- spray body, 11- first spray arm, 111- first flow channel, 12- second spray arm, 121- second flow channel, 1211- first area, 1212- second area, 2- spray port, 3- first nozzle, 4- second nozzle, 5- outer cylinder, 6- inner cylinder, 7- first liquid inlet, 8- second liquid inlet. DETAILED DESCRIPTION

[0031] The preferred embodiments of the present application are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present application and are not used to limit the scope of protection of the present application. Those skilled in the art can make adjustments to them as needed to adapt to specific application scenarios.

[0032] It should be noted that in the description of this application, the terms "upper", "lower", "left", "right", "inner", "outer", etc., which indicate directions or positional relationships, are based on the directions or positional relationships shown in the drawings. This is only for the convenience of description, and does not indicate or imply that the relevant devices or components must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on this application. In addition, the ordinal numbers "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0033] In addition, it should be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "installation" and "connection" 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 those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0034] The dishwasher is one of the indispensable household appliances in modern families. It can help solve the tedious washing work in the kitchen in an efficient and convenient way. The spray arm is one of the important components of the dishwasher. Its function is to clean the dishes by spraying liquid mixed with detergent.

[0035] However, some dishwashers in related technologies have some problems during operation. For example, the spray arm can only rotate in one direction during operation. The one-way rotation of the spray arm can easily lead to an uneven spray range, making it difficult to clean local corners, which will affect the washing effect of the dishwasher.

[0036] Therefore, please refer to Figure 1-4 , the embodiment of the present application provides a spray structure, the spray structure includes a spray body 1 having a rotation axis, and the spray body 1 can rotate around the rotation axis. Specifically, Figure 1 and 2 As shown, a first flow channel 111 and a second flow channel 121 are formed independently of each other in the spray body 1, and the first flow channel 111 and the second flow channel 121 are both connected to a spray port 2 to spray the fluid in the spray body 1 to the washing area. It should be noted that the fluid referred to in this embodiment can be, but is not limited to, a liquid mixed with detergent.

[0037] It should also be noted that during the operation of the dishwasher, liquid with a certain pressure is transported to the inside of the spray arm. When the liquid is sprayed out through the nozzle of the spray arm, the spray arm starts to rotate under the driving force of the reaction force formed by the spray, thereby forming a jet of water. This jet of water sprays onto the tableware in different directions and angles, thereby completing the tableware cleaning work.

[0038] It can be seen that the design of the nozzle position and spray angle of the spray body 1 affects the spray direction and spray range of the fluid. By adjusting the flow rate and spray angle of the nozzle spraying fluid, the rotation speed and direction of the spray body 1 can be controlled.

[0039] Combining this principle, Figures 1 to 3 As shown, the first flow channel 111 is connected to at least one first nozzle 3. When the first nozzle 3 sprays fluid, the fluid sprayed from the first nozzle 3 can provide a rotational torque to the spray body 1 through the action of the reaction force, thereby driving the spray body 1 to rotate in a first direction around the rotation axis.

[0040] Similarly, the second flow channel 121 is connected to at least one second nozzle 4. When the second nozzle 4 sprays fluid, the fluid sprayed from the second nozzle 4 can provide a rotational torque to the spray body 1 through the action of the reaction force, thereby driving the spray body 1 to rotate in the second direction around the rotation axis.

[0041] This bidirectional drive design has the following advantages: first, it has a bidirectional rotation mode, and bidirectional spraying can reduce the problem of uneven cleaning caused by the unidirectional rotation of the spray body 1, thereby improving the cleaning effect; second, when fluid is injected into the first flow channel 111 or the second flow channel 121 at the same time, reaction forces in two directions can be generated at the same time, so that the spray body 1 can generate a reverse balancing torque, which helps to keep the rotation speed of the spray body 1 stable.

[0042] Since the first flow channel 111 and the second flow channel 121 are independent of each other, their flow rates can be controlled and adjusted separately, thereby controlling parameters such as the rotation direction and rotation speed of the spray body 1. This allows users to use different modes as needed to meet different types of cleaning tasks.

[0043] Specifically, when the spray body 1 needs to rotate in the first direction, fluid can be injected into the first flow channel 111 to be sprayed out from the first nozzle 3; when the spray body 1 needs to rotate in the second direction, fluid can be injected into the second flow channel 121 to be sprayed out from the second nozzle 4.

[0044] Furthermore, increasing the flow rate will increase the impact force of the fluid on the spray body 1, thereby increasing the rotation speed; reducing the flow rate will slow down the rotation speed. The flow rate can be precisely adjusted by setting a regulating valve or a flow control device.

[0045] In an optional embodiment, the number of the first nozzle 3 and the second nozzle 4 can be set according to actual needs, including at least one, but also more. Such a solution can adjust the driving torque of the spray body 1 by adjusting the number of nozzles, and can increase the flexibility of its rotation adjustment.

[0046] To summarize, the spray structure provided in the present application sets a first flow channel 111 and a second flow channel 121, which are independent of each other and respectively connected to the first nozzle 3 and the second nozzle 4, so that the spray body 1 can be subjected to driving torque in two directions, which can improve the spray effect of the spray body 1, make the rotation speed of the spray body 1 controllable, and spray more uniform, so that the detergent can fully contact and flush the grease, food residues and dirt on the surface of the tableware, thereby achieving a thorough cleaning effect.

[0047] In an optional embodiment, if Figure 1 and 2 As shown, the spray body 1 includes a first spray arm 11 and a second spray arm 12 that are intersectingly arranged, wherein a first flow channel 111 is arranged in the first spray arm 11 , and a second flow channel 121 is arranged in the second spray arm 12 .

[0048] Specifically, the spray body 1 is structured to form a first spray arm 11 and a second spray arm 12 that are intersectingly arranged, and the rotation axis of the spray body 1 is located at the geometric center of the intersection position to facilitate balance during rotation. The first flow channel 111 is arranged in the first spray arm 11, and the second flow channel 121 is arranged in the second spray arm 12.

[0049] In this way, the weight of the entire spray body 1 can be reduced, so that the driving force required for the spray body 1 to rotate is smaller, so that the rotation direction and rotation speed of the spray body 1 can be easily adjusted.

[0050] Furthermore, the first spray arm 11 and the second spray arm 12 are arranged to intersect each other, which can increase the spray range under the same fluid flow drive, so that the spray body 1 can cover the target area more comprehensively, thereby improving the cleaning effect.

[0051] Furthermore, the first spray arm 11 and the second spray arm 12 are arranged to intersect each other, and the rotation axis thereof is arranged at the intersection center, so that the space required for the rotation of the spray body 1 can be minimized while ensuring the spraying range.

[0052] In an optional embodiment, if Figure 2 As shown, the first flow channel 111 is a through-type flow channel, which divides the second flow channel 121 into a first area 1211 and a second area 1212 that are independent of each other.

[0053] like Figure 4As shown, the spray body 1 also includes an outer cylinder 5 and an inner cylinder 6 located at the intersection of the first spray arm 11 and the second spray arm 12. The outer cylinder 5 and the inner cylinder 6 are two cylindrical components. The fluid can enter the first flow channel 111 through the inner cylinder 6, which can also be understood as the inner cylinder 6 forming the first liquid inlet 7 of the first flow channel 111; the fluid can enter the first area 1211 and the second area 1212 respectively through the outer cylinder 5, which can also be understood as the space between the outer cylinder 5 and the inner cylinder 6 forming the second liquid inlet 8 of the second flow channel 121.

[0054] Such a design can avoid the use of additional pipes and connectors, thereby reducing the space occupied by the system. This is particularly useful for space-constrained application scenarios such as dishwashers. Second, only one liquid inlet pipe is needed to provide liquid supply to the first flow channel 111 and the second flow channel 121 at the same time, simplifying the complexity of pipeline layout and connection.

[0055] For example, the liquid inlet pipe that cooperates therewith is designed to be a pipeline that matches the liquid inlet valve, and the flow rates in the first flow channel 111 and the second flow channel 121 are adjusted by controlling the opening and closing and the opening degree of the liquid inlet valve.

[0056] In another optional embodiment, the first flow channel 111 and the second flow channel 121 are both through-flow channels, and the two flow channels are located in different planes so that the two can achieve coherent and intersecting characteristics. It should be noted that in this case, the first flow channel 111 and the second flow channel 121 are respectively provided with different liquid inlets to facilitate the separate control of the flow rates of the two flow channels, thereby realizing the control of the rotation direction and rotation speed of the spray body 1.

[0057] In a preferred embodiment, the diameter of the first liquid inlet 7 is larger than that of the second liquid inlet 8 , or in other words, the flow cross section of the first liquid inlet 7 is larger than that of the second liquid inlet 8 .

[0058] The advantage of this design is that when liquid is injected into the first flow channel 111 and the second flow channel 121 at the same time, the spray body 1 can rotate in the first direction at a relatively slow speed, so that a specific rotation mode and spray range can be achieved to meet the application requirements to the greatest extent.

[0059] In an optional embodiment, the first spray arm 11 is arranged on both sides of the rotation axis, and each side is provided with a first nozzle 3. Specifically, the spray directions of the nozzles on both sides are different, so that a driving torque can be generated to drive the first spray arm 11 to rotate around the rotation axis.

[0060] In a preferred solution, the first nozzle 3 is arranged at one end away from the axis, and if the driving torque to be generated is maximized, the spraying direction of the first nozzle 3 should be the tangential direction of the first spray arm 11 so that the first nozzle 3 obtains the maximum power arm at its position.

[0061] Similarly, the second spray arm 12 is also arranged on both sides of the rotation axis, and each side is equipped with a second nozzle 4. Specifically, the spray directions of the nozzles on both sides are different, so that the driving torque that drives the second spray arm 12 to rotate around the rotation axis can be generated.

[0062] In a preferred solution, the second nozzle 4 is arranged at one end away from the axis, and if the driving torque to be generated is maximized, the spraying direction of the second nozzle 4 should be the tangential direction of the second spray arm 12 so that the second nozzle 4 can obtain the maximum power arm at its position.

[0063] By arranging the first nozzle 3 and the second nozzle 4 on both sides of the rotation axis, the driving torque of the spray body 1 during rotation can be increased, and the spray range of the spray body 1 can also be increased to a certain extent.

[0064] In an optional embodiment, if Figure 1 and 2 As shown, a plurality of first nozzles 3 are provided on each side of the rotation axis, and a plurality of second nozzles 4 are provided on each side of the rotation axis.

[0065] By arranging a plurality of first nozzles 3 and second nozzles 4 on both sides of the rotation axis, not only the driving torque of the spray body 1 during rotation can be increased, but also the spray range of the spray body 1 can be increased, thereby improving the spray efficiency and spray uniformity.

[0066] Furthermore, the spraying direction of the plurality of first nozzles 3 and the plurality of second nozzles 4 can be tested and adjusted to select a suitable angle and direction, thereby optimizing the rotation speed of the spraying body 1 and improving the spraying quality.

[0067] In an optional embodiment, the distance between the multiple first nozzles 3 and the rotation axis is designed to be a plurality of different values, so that the multiple first nozzles 3 can form a plurality of first spraying trajectories when rotating around the rotation axis, and the first spraying trajectories do not overlap with each other; similarly, the distance between the multiple second nozzles 4 and the rotation axis is designed to be a plurality of different values, so that the multiple second nozzles 4 can form a plurality of second spraying trajectories when rotating around the rotation axis, and the second spraying trajectories do not overlap with each other.

[0068] Furthermore, the distances between each spray port 2 and the rotation axis are different, and when the spray body 1 rotates, the spray ports 2 also form different spray trajectories.

[0069] The advantage of this design is that the liquid can be effectively sprayed to the area that needs to be covered through the multiple spraying tracks formed by the multiple nozzles, so that the spray body 1 has a wider coverage range and a more uniform spraying effect.

[0070] In an optional embodiment, if Figure 3 As shown, the cross-sectional area of ​​the first nozzle 3 gradually increases along the fluid injection direction; the cross-sectional area of ​​the second nozzle 4 gradually increases along the fluid injection direction. Since the effects produced by the structural designs of the first nozzle 3 and the second nozzle 4 are similar, the effect produced by the structure of the first nozzle 3 is taken as an example for description below.

[0071] First, the structure in which the cross-sectional area of ​​the fluid gradually increases during the injection process can help optimize the velocity and flow distribution of the liquid injection. Specifically, the structure in which the cross-sectional area gradually increases can provide a smoother flow during the injection process, reduce the resistance and loss of the fluid, and thus improve the efficiency of the injection.

[0072] Secondly, as the cross-sectional area gradually increases, the velocity and impact force of the fluid jet will gradually decrease. This can reduce the impact force on the target object and avoid excessive jet force causing damage to the target, which is especially important for fragile tableware.

[0073] Furthermore, the structure with gradually increasing cross-sectional area can also expand the spraying range during the spraying process, which helps to achieve a wider spraying coverage and improve the uniformity of the spraying.

[0074] In general, the structure in which the cross-sectional areas of the first nozzle 3 and the second nozzle 4 are gradually increased can optimize the velocity distribution of the liquid spray, reduce the impact force and expand the spraying range, which plays an important role in achieving a uniform and efficient spraying effect.

[0075] The present application also provides a dishwasher, including the spray structure as described above. Since the spray structure has the above technical effects, the dishwasher including the spray structure also has the above technical effects, which will not be described in detail herein.

[0076] In an optional embodiment, the dishwasher also includes a control valve, which is connected to the first flow channel 111 and the second flow channel 121 respectively; a controller, which is communicated with the control valve, and the controller is used to control the action of the control valve to change the flow value of the first flow channel 111 and the second flow channel 121, thereby adjusting the rotation direction and rotation speed of the spray body 1.

[0077] First, the dishwasher can realize a specific washing mode by controlling the unidirectional rotation of the spray body 1. Specifically, the spray body 1 can be controlled to rotate in a single direction by controlling the connection state of the control valve with the first flow channel 111 or the second flow channel 121. When the control valve is only connected to the first flow channel 111, that is, the fluid is only passed to the first spray arm 11, the spray body 1 will only rotate in the first direction. Similarly, when the control valve is only connected to the second flow channel 121, that is, the fluid is only passed to the second spray arm 12, the spray body 1 will only rotate in the second direction.

[0078] In addition, controlling the flow rate of the fluid can be used to adjust the rotation speed of the spray body 1. By controlling the size of the fluid flow rate, the speed of the spray body 1 can be changed to achieve a customized washing effect. For example, by reducing the fluid flow rate, the spray body 1 can be rotated in a single direction at a slower speed to increase the spraying time and enhance the washing effect.

[0079] In addition, if the control valve is connected to the first flow channel 111 and the second flow channel 121 at the same time, the fluid passes through the first spray arm 11 and the second spray arm 12 at the same time, but the flow rate of the first spray arm 11 is larger, thereby controlling the rotation of the spray body 1 in the first direction. The flow rate in the second spray arm 12 can balance the rotation speed of the first spray arm 11, so that the spray body 1 rotates in the first direction at a relatively slow speed.

[0080] Secondly, the dishwasher can realize a local enhanced washing mode. Specifically, by controlling the time when the valve is connected to the first flow channel 111 and the second flow channel 121, the spray body 1 can be rotated in the first direction for a certain time, and then rotated in the second direction for a certain time, so that the spray body 1 swings back and forth between the first direction and the second direction to realize the local enhanced washing mode.

[0081] This local enhanced washing method can concentrate the spraying in a specific washing area, increase the cleaning effect, and improve energy efficiency.

[0082] It can be seen that through the combination of the control valve and the controller, the dishwasher can flexibly control the spray pattern and flow distribution of the spray structure according to a specific program or user's settings. This helps to improve the washing effect of the dishwasher to adapt to different types and degrees of dirt, while also saving water.

[0083] So far, the technical solutions of the present application have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present application is obviously not limited to these specific embodiments. Without departing from the principles of the present application, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present application.

Claims

1. A spray structure, characterized in that: include: A spray body, wherein the spray body has a rotation axis, and a first flow channel and a second flow channel independent of each other are formed in the spray body, and the first flow channel and the second flow channel are both connected and provided with a spray port; The first flow channel is connected to at least one first nozzle, and when the fluid is sprayed through the first nozzle, it can generate a driving torque along a first direction on the spray body; The second flow channel is connected to at least one second nozzle, and when the fluid is sprayed through the second nozzle, it can generate a driving torque along a second direction on the spray body, and the first direction is opposite to the second direction.

2. The spray structure according to claim 1, characterized in that: The spray body comprises a first spray arm and a second spray arm which are arranged to intersect each other, the first flow channel is located in the first spray arm, and the second flow channel is located in the second spray arm.

3. The spray structure according to claim 2, characterized in that: The first flow channel is a through-type flow channel, and the first flow channel divides the second flow channel into a first area and a second area which are independent of each other; The spray body further includes an outer cylinder and an inner cylinder arranged at the intersection of the first spray arm and the second spray arm, the fluid can enter the first flow channel through the inner cylinder, and the fluid can enter the first area and the second area respectively through the outer cylinder.

4. The spray structure according to claim 2, characterized in that: The first flow channel and the second flow channel are both through-type flow channels, and the first flow channel and the second flow channel are located in different planes.

5. The spray structure according to claim 2, characterized in that: The first spray arm is provided with the first nozzles on both sides of the rotation axis, and the second spray arm is provided with the second nozzles on both sides of the rotation axis.

6. The spray structure according to claim 5, characterized in that: A plurality of the first nozzles are disposed on each side of the rotation axis, and a plurality of the second nozzles are disposed on each side of the rotation axis.

7. The spray structure according to claim 6, characterized in that: When the plurality of first nozzles rotate around the rotation axis, a plurality of first spraying trajectories are formed, and the first spraying trajectories do not overlap with each other; when the plurality of second nozzles rotate around the rotation axis, a plurality of second spraying trajectories are formed, and the second spraying trajectories do not overlap with each other.

8. The spray structure according to any one of claims 1 to 7, characterized in that: The cross-sectional area of ​​the first nozzle gradually increases along the fluid ejection direction; the cross-sectional area of ​​the second nozzle gradually increases along the fluid ejection direction.

9. A dishwasher, characterized in that: include: The spray structure according to any one of claims 1 to 8.

10. The dishwasher according to claim 9, characterized in that Also includes: a control valve, which is communicated with the first flow channel and the second flow channel respectively; A controller is connected to the control valve for controlling the operation of the control valve to change the flow values ​​of the first flow channel and the second flow channel.

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