Spray structure for cleaning machine and cleaning machine

Abstract

The present invention relates to a spray structure for a cleaning machine and a cleaning machine, wherein the spray structure comprises a spray arm, wherein the spray arm has a flow channel inside, and the spray arm is provided with a water inlet and a plurality of spray holes which are all in fluid communication with the flow channel, and the spray arm can rotate under the action of water flow; a containing box for containing solid detergent, the containing box is fixedly mounted on the spray arm, and the containing box is provided with a feeding port for putting detergent into the containing box and an outlet for the detergent to flow out, the outlet is located on the moving path of the detergent when the spray arm rotates, and the containing box is provided with a water inlet for water to flow into the containing box to dissolve the detergent; a nozzle is arranged on the spray arm and in fluid communication with the flow channel, and the nozzle of the nozzle faces the water inlet. The spray structure is multi-purpose, and can not only spray cleaning water, but also spray detergent, and does not need to set up an additional detergent dispensing structure controlled by electric control logic, and has a simple structure and low dependence on electric control components.

Description

Technical Field

[0001] The present invention relates to the technical field of washing machines for washing tableware, fruits and vegetables, and in particular to a spray structure for a washing machine and the washing machine. Background Art

[0002] Dishwashers are becoming increasingly popular due to their excellent cleaning performance, ability to disinfect food, and time-saving and labor-saving advantages. Currently, most dishwashers use dishwashing powder as a detergent. A dispenser is located in the dishwasher door. After opening the door, the user places the dishwashing powder in the dispenser. During the wash cycle, the dispenser dispenses the powder into the dishwasher's wash chamber at the appropriate time, as described in the "Door Structure and Dishwasher" patent application filed in Chinese Utility Model Patent No. CN202122838628.7 (Publication No. CN 216364965 U).

[0003] Most of the current detergent dispensing structures are as shown in the above-mentioned patents, which require an additional detergent dispensing structure to be specially set on the door body, increasing costs. In order to be able to transport detergent into the washing chamber of the dishwasher, or to be able to dispense washing liquid at a specific cleaning sequence, the detergent dispensing structure is usually electronically controlled, which is costly and has a high failure rate.

[0004] Of course, you can also manually add detergent to the washing chamber, but this is more troublesome. Secondly, it is not convenient to add it during a specific cleaning sequence, which affects the cleaning effect. Moreover, if the detergent is solid, it may be discharged before it is completely dissolved if it is directly added to the washing chamber.

[0005] Therefore, the existing detergent dispensing structure needs to be further improved. Summary of the Invention

[0006] The first technical problem to be solved by the present invention is to provide a spray structure for a washing machine capable of dispensing detergent in response to the current status of the existing technology.

[0007] The second technical problem to be solved by the present invention is to provide a cleaning machine using the above-mentioned spray structure in view of the current status of the existing technology.

[0008] The technical solution adopted by the present invention to solve the above-mentioned first technical problem is: a spray structure for a cleaning machine, comprising

[0009] A spray arm having a flow channel therein, a water inlet and a plurality of spray holes provided on the spray arm, each of which is in fluid communication with the flow channel, and the spray arm is capable of rotating under the action of water flow;

[0010] It is characterized by also including

[0011] A storage box is used to hold solid detergent. The storage box is fixedly installed on the spray arm. The storage box is provided with a feeding port for feeding detergent into the storage box and an outlet for the detergent to flow out. The outlet is located on the movement path of the detergent when the spray arm rotates. The storage box is also provided with a water inlet for water to flow into the storage box to dissolve the detergent. The water inlet is in fluid communication with the flow channel.

[0012] The water inlet can be directly passed through the connection between the flow channel and the accommodating box, or a drainage pipe can be set to connect the water inlet hole and the flow channel, or a nozzle that is fluidically connected to the flow channel can be provided on the spray arm, and the nozzle of the nozzle is facing the water inlet hole, so that the water inlet hole and the flow channel can be fluidically connected.

[0013] In the above solution, the spray hole and nozzle are both provided on the top wall of the spray arm, the water inlet is provided on the bottom wall of the spray arm, the accommodating box is fixedly mounted on the top wall of the spray arm, the water inlet is provided on the side wall of the accommodating box, and the nozzle is tilted from bottom to top toward the water inlet so that the nozzle opening faces the water inlet. This arrangement is structurally sound.

[0014] To ensure that the detergent is fully dissolved before flowing out of the outlet, thereby improving the cleaning effect, the container is provided with a first partition, which divides the container into a storage chamber and a liquid outlet chamber. The feeding port is connected to the storage chamber. A through hole is formed on the first partition, connecting the storage chamber and the liquid outlet chamber. The water inlet is connected to the storage chamber, and the outlet is connected to the liquid outlet chamber. In this way, after the detergent dissolves in the storage chamber and becomes liquid, it enters the liquid outlet chamber through the through hole and is then sprayed out of the outlet.

[0015] To further ensure the full dissolution of the detergent, a movable block is provided in the storage chamber, on which the detergent rests. This movable block can move upward relative to the storage chamber under the buoyancy of the water, and can also move downward relative to the storage chamber under the weight of itself and the detergent. The movable block can open or close the water inlet. During the dissolution process, as the solid detergent is partially consumed, the movable block rises, closing the water inlet. External water no longer flows into the storage chamber, and the remaining detergent is no longer consumed. The spray arm is controlled to operate at a low speed, and no detergent is sprayed from the outlet, allowing the consumed detergent to be fully dissolved by the water.

[0016] In order to accommodate different types of detergents, the first partition comprises two opposed partitions, which separate the container into a liquid outlet cavity and two material storage cavities located on either side of the liquid outlet cavity. Each material storage cavity is provided with the movable block. In this way, different types of detergents can be placed in the two material storage cavities.

[0017] When the detergents in the storage chamber are of different types, in order to prevent the different detergent solutions from mixing, a second partition is further provided in the liquid outlet chamber to separate the liquid outlet chamber into two chambers respectively connected to the two storage chambers.

[0018] In order to open or close the feeding port and prevent detergent from being thrown out of the feeding port, the top of the storage chamber is open to form the feeding port, the top of the liquid discharge chamber is closed, and a vertically extending mounting shaft is provided on the top wall of the liquid discharge chamber. A cover plate is rotatably mounted on the mounting shaft. The cover plate can be rotated to a first state in which both feeding ports are closed, or a second state in which both feeding ports are opened. A single cover plate can be used to close or open both feeding ports, which is more streamlined and easier to operate than providing a cover plate at each feeding port.

[0019] To adjust the amount of detergent solution dispensed, the outlet is located on the side wall of the container and includes multiple outlet holes arranged in a row, arranged from lowest to highest. When the spray arm rotates at a high speed, the centrifugal force is also high, and detergent flows out of all the outlet holes. When the spray arm rotates at a low speed, the centrifugal force is also low, and the detergent only reaches some of the outlet holes.

[0020] To deliver detergent to the higher-positioned liquid outlet, the bottom wall of the liquid outlet chamber is partially formed into a slope that slopes upward away from the center of the container. The outlet is located on a side wall of the container connected to the slope, and the liquid outlets are arranged sequentially along the slope. Under the action of centrifugal force, the detergent flows upward along the slope, reaching the higher-positioned liquid outlet.

[0021] In order to prevent the container from interfering with the arrangement of the spray holes, the water inlet is arranged in the center of the spray arm, and the container is arranged directly above the water inlet. Generally, spray holes are not arranged directly above the water inlet, so the container is arranged there.

[0022] The technical solution adopted by the present invention to solve the second technical problem is: a cleaning machine, characterized in that it includes a box body with a washing chamber and the above-mentioned spray structure, and the spray arm is rotatably arranged in the washing chamber.

[0023] Compared with the prior art, the advantages of the present invention are as follows: the present invention fixes a storage box for accommodating detergent on the spray arm. When the spray arm rotates, the water sprayed from the nozzle of the spray arm enters the storage box to dissolve the detergent. Then, the detergent solution in the storage box can move under the action of the centrifugal force generated when the spray arm rotates, and is finally thrown out from the outlet and enters the washing chamber to clean the tableware. In this way, the spray structure has multiple uses and can not only spray cleaning water but also spray detergent. There is no need to set up an additional detergent delivery structure controlled by electronic control logic. The structure is simple and the dependence on electronic control components is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic structural diagram of a spray structure according to an embodiment of the present invention;

[0025] Figure 2 for Figure 1 sectional view of

[0026] Figure 3 for Figure 2 Schematic diagram of the structure of the accommodating box (remove the detergent);

[0027] Figure 4 for Figure 3 A schematic diagram of the structure in another direction;

[0028] Figure 5 for Figure 3 sectional view of . DETAILED DESCRIPTION

[0029] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0030] like Figures 1 to 5 As shown, the cleaning machine of this preferred embodiment includes a box body (not shown in the figure) and a spray structure, and the box body has a washing chamber.

[0031] The spray structure includes a spray arm 1 and a accommodating box 2. The spray arm 1 can be rotatably arranged in the washing chamber. The spray arm 1 has a flow channel 11 inside. A water inlet 12 is provided on the bottom wall of the spray arm 1 and is fluidically connected to the flow channel 11. The water inlet 12 is provided in the central part of the spray arm 1. A plurality of spray holes 13 are provided on the top wall of the spray arm 1 and are fluidically connected to the flow channel 11. The spray arm 1 can rotate under the action of water flow. This is existing technology and will not be repeated here.

[0032] The accommodating box 2 is used to contain solid detergents, such as dishwashing blocks 7 or dishwashing powder.

[0033] The container 2 is fixedly mounted on the top wall of the spray arm 1, located directly above the water inlet 12. The container 2 is provided with a feed port 21 for adding detergent into the container 2 and an outlet 22 for discharging the detergent. Outlet 22 is located in the detergent's path as the spray arm 1 rotates. The side wall of the container 2 also includes a water inlet 23 for water to flow into the container 2 to dissolve the detergent. The top wall of the spray arm 1 is also provided with a nozzle 14 in fluid communication with the flow channel 11. The nozzle 14 is tilted upward from bottom to top toward the water inlet 23, spraying water from the water inlet 23 into the container 2.

[0034] like Figure 5 As shown, in this embodiment, a first partition 3 is provided in the container 2, dividing the container 2 into a material storage chamber 24 and a liquid outlet chamber 25. The material inlet 21 is connected to the material storage chamber 24. A through hole 31 is formed in the first partition 3, connecting the material storage chamber 24 and the liquid outlet chamber 25. The water inlet 23 is connected to the material storage chamber 24, and the outlet 22 is connected to the liquid outlet chamber 25. After the detergent dissolves into liquid in the material storage chamber 24, it enters the liquid outlet chamber 25 through the through hole 31 and is then sprayed out from the outlet 22.

[0035] The storage chamber 24 is provided with a moving block 4 on which detergent can be placed. The moving block 4 can move upward relative to the storage chamber 24 under the buoyancy of water, and can move downward relative to the storage chamber 24 under the gravity of itself and the detergent, and the moving block 4 can open or close the water inlet hole 23.

[0036] During the process of detergent dissolution, since a portion of the solid detergent is consumed, the moving block 4 will float up, closing the water inlet 23 , and the external water flow will no longer rush into the storage chamber 24 .

[0037] The spray arm 1 is controlled to operate at a low speed, and no detergent is sprayed from the outlet 22, so that the consumed detergent is fully dissolved by the water. Because during the high-speed spraying process of the spray arm 1, the water entering the accommodating box 2 may not completely dissolve the detergent before being sprayed from the outlet 22, the speed of the spray arm 1 can be reduced to allow the detergent to fully dissolve into washing liquid in the cavity.

[0038] When the detergent is completely dissolved, the rotation speed of the spray arm 1 is increased so that the detergent solution flows out from the outlet 22. The moving block 4 moves downward under the action of gravity, opening the water inlet 23. The water sprayed from the nozzle 14 enters the storage chamber 24 to continue dissolving the detergent.

[0039] In this embodiment, two first partitions 3 are arranged opposite each other, dividing the container 2 into a liquid outlet chamber 25 and two material storage chambers 24 located on either side of the liquid outlet chamber 25. Each material storage chamber 24 is provided with a movable block 4. A second partition 5 is also provided in the liquid outlet chamber 25, dividing the liquid outlet chamber 25 into two chambers 251, each communicating with the two material storage chambers 24. The two material storage chambers 24 can contain the same or different types of detergent.

[0040] The top of the storage chamber 24 is open, forming the feeding port 21. The top of the liquid discharge chamber 25 is closed, and a vertically extending mounting shaft 61 is provided on the top wall of the liquid discharge chamber 25. The cover plate 6 is rotatably mounted on the mounting shaft 61. The cover plate 6 can be rotated to a first position, in which both feeding ports 21 are closed, or a second position, in which both feeding ports 21 are open. A single cover plate 6 can close or open both feeding ports 21, resulting in a simpler structure and easier operation than providing a single cover plate 6 for each feeding port 21. The cover plate 6 also includes a shifting block 62 for facilitating its rotation.

[0041] In this embodiment, the cover plate 6 is close to a rectangle, except that the two short sides of the cover plate 6 are arc-shaped.

[0042] The outlet 22 includes a plurality of liquid outlet holes 221 arranged in a row, arranged in ascending order. The bottom wall of the liquid outlet chamber 25 partially forms a slope 252 that slopes upward, away from the center of the container 2. The outlet 22 is located on a side wall of the container 2 connected to the slope 252, and the liquid outlet holes 221 are arranged in sequence along the slope 252. Under the action of centrifugal force, detergent flows upward along the slope 252, reaching the higher-positioned liquid outlet holes 221.

[0043] When the rotation speed of the spray arm 1 is high, the centrifugal force is also high, and detergent flows out of all the liquid outlets 221; when the rotation speed of the spray arm 1 is low, the centrifugal force is also low, and the detergent can only reach some of the liquid outlets 221. The output of the detergent solution can be controlled by adjusting the rotation speed of the spray arm 1.

[0044] The spray structure of this embodiment is more suitable for solid detergents. Of course, liquid detergents can also be put into the storage chamber 24 and directly flow out from the outlet 22 under the action of centrifugal force.

[0045] The rotation speed of the spray arm 1 can be adjusted using existing methods, which will not be described in detail here.

[0046] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations 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 orientation, be constructed and operated in a specific orientation. Since the embodiments disclosed in the present invention can be set in different directions, these terms indicating directions are only for illustration and should not be regarded as limitations. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

[0047] The "fluid communication" referred to in the present invention refers to the spatial position relationship between two components or parts (hereinafter collectively referred to as the first part and the second part), that is, the fluid (gas, liquid or a mixture of the two) can flow from the first part along the flow path or / and be transported to the second part. The first part and the second part can be directly connected, or the first part and the second part can be indirectly connected through at least one third party. The third party can be a fluid channel such as a pipe, channel, conduit, guide member, hole, groove, etc., or it can be a chamber allowing fluid to flow through, or a combination of the above.

Claims

1. A spray structure for a cleaning machine, comprising: A spray arm (1), wherein the spray arm (1) has a flow channel (11) inside, the spray arm (1) is provided with a water inlet (12) and a plurality of spray holes (13) which are both fluidically connected to the flow channel (11), and the spray arm (1) is capable of rotating under the action of water flow; It is characterized in that Also includes A container (2) for containing solid detergent, the container (2) being fixedly mounted on the spray arm (1), the container (2) being provided with a feeding port (21) for feeding detergent into the container (2) and an outlet (22) for the detergent to flow out, the outlet (22) being located on a moving path of the detergent when the spray arm (1) rotates, and the container (2) being provided with a water inlet (23) for water to flow into the container (2) to dissolve the detergent, the water inlet (23) being fluidically connected to the flow channel (11); The spray arm (1) is provided with a nozzle (14) in fluid communication with the flow channel (11), and the nozzle of the nozzle (14) faces the water inlet hole (23), so that the water inlet hole (23) and the flow channel (11) can be in fluid communication with each other; The spray hole (13) and the nozzle (14) are both arranged on the top wall of the spray arm (1), the water inlet (12) is arranged on the bottom wall of the spray arm (1), the accommodating box (2) is fixedly mounted on the top wall of the spray arm (1), the water inlet (23) is arranged on the side wall of the accommodating box (2), and the nozzle (14) is inclined from bottom to top toward the water inlet (23); The accommodating box (2) is provided with a first partition (3), the first partition (3) divides the accommodating box (2) into a material storage chamber (24) and a liquid outlet chamber (25), the feeding port (21) is connected to the material storage chamber (24), the first partition (3) is provided with a through hole (31) connecting the material storage chamber (24) and the liquid outlet chamber (25), the water inlet (23) is connected to the material storage chamber (24), and the outlet (22) is connected to the liquid outlet chamber (25).

2. The spray structure according to claim 1, characterized in that: The material storage chamber (24) is provided with a moving block (4) on which detergent can be placed, the moving block (4) can move upward relative to the material storage chamber (24) under the action of the buoyancy of water, and the moving block (4) can move downward relative to the material storage chamber (24) under the action of its own gravity and the gravity of the detergent, and the moving block (4) can open or close the water inlet hole (23).

3. The spray structure according to claim 2, characterized in that: The first partition plate (3) comprises two pieces arranged opposite to each other, which separate a liquid outlet cavity (25) and two material storage cavities (24) located on both sides of the liquid outlet cavity (25) in the accommodating box (2), and each material storage cavity (24) is provided with the moving block (4).

4. The spray structure according to claim 3, characterized in that: A second partition plate (5) is also provided in the liquid outlet cavity (25), and the second partition plate (5) divides the liquid outlet cavity (25) into two chambers (251) respectively connected to the two material storage cavities (24).

5. The spray structure according to claim 3, characterized in that: The top of the material storage chamber (24) is open to form the feeding port (21), the top of the liquid outlet chamber (25) is closed, and a vertically extending mounting shaft (61) is provided on the top wall of the liquid outlet chamber (25), and the cover plate (6) is rotatably mounted on the mounting shaft (61), and the cover plate (6) can be rotated to a first state in which both feeding ports (21) are closed, or a second state in which both feeding ports (21) are opened.

6. The spray structure according to claim 1, characterized in that: The outlet (22) is arranged on the side wall of the accommodating box (2), and the outlet (22) comprises a plurality of liquid outlet holes (221) arranged in a row, wherein the liquid outlet holes (221) are arranged in sequence from low to high.

7. The spray structure according to claim 6, characterized in that: The bottom wall surface of the liquid outlet cavity (25) is partially formed into an inclined surface (252) which is inclined from bottom to top away from the central part of the accommodating box (2); the outlet (22) is arranged on a side wall of the accommodating box (2) connected to the inclined surface (252); and the liquid outlet holes (221) are arranged in sequence along the inclined direction of the bottom wall surface.

8. The spray structure according to any one of claims 1 to 7, characterized in that: The water inlet (12) is arranged at the central part of the spray arm (1), and the accommodating box (2) is arranged directly above the water inlet (12).

9. A cleaning machine, characterized in that: It comprises a box body having a washing chamber and a spray structure as claimed in any one of claims 1 to 8, wherein the spray arm (1) is rotatably arranged in the washing chamber.

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