Water flow system for dish washing machine and dish washing machine

Abstract

The utility model relates to a water flow system for a dish-washing machine and the dish-washing machine, and the water flow system comprises a water supply pipe which is provided with a first water outlet; the body is arranged at the first water outlet, and a water inlet and a water spraying opening are formed in the body; a water passing opening is formed in the wall face, close to the water spraying opening, of the spraying disc, and spraying holes are formed in the wall face, away from the water spraying opening, of the spraying disc; an annular body surrounding the periphery of the water spraying opening is arranged on the body, the spraying disc can be rotationally embedded in the annular body around the axis of the spraying disc, the spraying disc can be located at a first position and a second position, and when the spraying disc is located at the first position, the water passing opening is correspondingly communicated with the water spraying opening, and the spraying disc can spray water; and when the spraying disc is in the second position state, the water passing opening and the water spraying opening are staggered, and the spraying disc cannot spray water so as to meet different cleaning requirements.

Description

Technical Field

[0001] This utility model relates to the field of dishwasher technology, specifically to a water flow system for a dishwasher and a dishwasher. Background Technology

[0002] For countertop and cabinet dishwashers, due to their large washing space, they are generally designed with three spray arms: top, middle, and bottom, to achieve better washing results. During operation, the washing pump delivers water through pipes to the top, middle, and bottom spray arms. The water sprays out from the top, middle, and bottom spray arms, rinses the dishes, and then falls back into the water cup at the bottom of the dishwasher. The washing pump then delivers the fallen water back to the top, middle, and bottom spray arms to complete one cycle.

[0003] For example, the Chinese utility model patent disclosed in patent application number CN202221124462.0 (publication number CN217852836U) entitled "Back Spray Arm for Dishwasher and Dishwasher" includes a rear spray arm that extends laterally. The body is hollow inside to form a laterally extending flow channel. The bottom of the body has a water inlet connected to the flow channel, and the side wall has a water outlet. It also includes a nozzle located on the side of the body and rotatably connected to the water outlet. The outer side wall of the nozzle has multiple spray holes, and the spray direction of at least one spray hole is consistent with the water outlet direction, while the spray direction of at least one spray hole is deflected relative to the water outlet direction. This invention features a rotatable nozzle on the side of the main body, with multiple spray holes on the nozzle. This allows it to work in conjunction with the bottom spray arm to achieve a wider range and denser water spray effect on the tableware in the lower dish rack. The deflected spray holes can also rinse the inner wall of the washing chamber to eliminate residue buildup, thereby improving the cleaning effect and user experience.

[0004] Dishwashers typically have at least two dish racks spaced vertically, with each spray arm designed to clean a specific dish rack. However, if a dish rack is empty, it does not need to be cleaned. If the corresponding spray arm were to spray water, it would waste water. Utility Model Content

[0005] The first technical problem this invention aims to solve is to provide a water flow system for a dishwasher that can spray water or not spray water as needed, in light of the current state of the technology.

[0006] The second technical problem to be solved by this utility model is to provide a dishwasher that applies the above-mentioned water flow system, in view of the current state of the prior art.

[0007] The technical solution adopted by this utility model to solve the first technical problem mentioned above is: a water flow system for a dishwasher, comprising...

[0008] A water supply pipe, wherein the water supply pipe is provided with a first water outlet;

[0009] The main body is located at the first water outlet. The main body is provided with a water inlet that is connected to the first water outlet. A spray nozzle is provided on the wall of the main body away from the water supply pipe.

[0010] A spray plate, hollow inside, is installed at the spray nozzle. The wall surface of the spray plate near the spray nozzle is provided with a water passage, and the wall surface of the spray plate away from the spray nozzle is provided with spray holes.

[0011] The feature is that the main body is provided with an annular body surrounding the water nozzle, and the spray plate is rotatably embedded in the annular body around its axis. The spray plate can be in a first position and a second position. When the spray plate is in the first position, the water inlet is correspondingly connected to the water nozzle; when the spray plate is in the second position, the water inlet is offset from the water nozzle.

[0012] In order to enable the spray plate to be positioned in the first position and the second position, the annular body is provided with a first positioning hole and a second positioning hole spaced apart along its circumference. The spray plate is provided with a positioning part. When the spray plate is in the first position, the positioning part can be detachably inserted into the first positioning hole; when the spray plate is in the second position, the positioning part can be detachably inserted into the second positioning hole.

[0013] In order to allow the positioning part to be detachably inserted into the first positioning hole or the second positioning hole, the side wall of the spray plate is provided with a through hole. When the spray plate is in the first position, the through hole faces the first positioning hole; when the spray plate is in the second position, the through hole faces the second positioning hole.

[0014] The spray plate is equipped with

[0015] The positioning element is movable toward or away from the perforation, so that a portion of the positioning element can protrude through the perforation or retract into the spray plate. The part of the positioning element that can protrude through the perforation is the positioning part.

[0016] The first elastic element acts on the positioning element, causing the positioning element to maintain the tendency of the positioning part to move in the direction of retracting the spray plate;

[0017] A driving component is used to drive the positioning component to move the positioning part toward the through hole, so that the positioning part is inserted into the first positioning hole or the second positioning hole to position the spray plate; the driving component can release the driving of the positioning component, and the positioning component will move under the action of the first elastic component, so that the positioning part retracts into the spray plate, at which time the spray plate can be rotated.

[0018] In order for the driving member to drive or release the driving member, the driving member is disposed in the spray plate and can move along the axial direction of the annular body. When the driving member moves away from the spray nozzle, it can push the positioning member so that the positioning part moves toward the perforation. The driving member can move until its end is located in the opening. In this state, the driving member abuts against the positioning member, and the positioning part passes through the perforation and is inserted into the first positioning hole or the second positioning hole.

[0019] The driving component, when pressed, moves toward the water nozzle until it disengages from the positioning component.

[0020] The spray plate also includes a second elastic element that acts on the driving component, causing the driving component to maintain a tendency to move away from the spray nozzle. When the driving component is pressed, it moves towards the spray nozzle, releasing the driving force on the positioning component. The positioning component then moves under the action of the first elastic element, causing the positioning part to retract into the spray plate, allowing the spray plate to rotate to the first or second position. When the driving component is not pressed, it moves away from the spray nozzle under the action of the second elastic element, pushing the positioning component so that the positioning part moves towards the through hole and inserts into the first or second positioning hole, thus positioning the spray plate.

[0021] To enable the driving member to push the positioning member and move the positioning part toward the positioning hole when it moves away from the water nozzle, the driving member has a first inclined surface extending toward the side wall where the through hole is located in the direction of its movement toward the water nozzle. The positioning member has a second inclined surface extending toward the side wall where the through hole is located in the direction of its movement toward the water nozzle. When the driving member moves away from the water nozzle, the first and second inclined surfaces abut against each other, causing the positioning member to move.

[0022] In the above solution, the driving member includes a pressing rod extending along the axial direction of the annular body and a pushing part provided on the peripheral wall of the pressing rod. The end of the pressing rod can be located in the opening. The positioning member is located on the side of the pressing rod. The pushing part extends toward the positioning member. The first inclined surface is provided on the pushing part. The pushing part can abut against the inner wall surface of the box.

[0023] Preferably, the pushing part has at least two spaced apart along the circumference of the pressing rod, and correspondingly, the positioning element, the through hole, the first positioning hole, and the second positioning hole also have at least two. This provides multiple points of connection between the spray disc and the body, resulting in good connection reliability.

[0024] To facilitate the placement of positioning components, driving components, and other parts within the spray tray, the spray tray includes a first housing and a second housing that can be joined together. The first and second housings together enclose a space for accommodating the positioning components and driving components. An opening is located on the first housing, and a through-hole is located on the second housing. The positioning components, driving components, etc., can be placed in the second housing first, and then the first and second housings can be connected.

[0025] To accommodate the washing of multiple dish racks, the water supply pipe is also equipped with a second water outlet located above the first water outlet, and a top spray arm connected to the second water outlet is provided. The top spray arm can adopt an existing structure to wash the upper dish rack, while the back spray arm washes the lower dish rack. The spray head of the upper spray arm can be increased by rotating the spray plate to a second position.

[0026] The technical solution adopted by this utility model to solve the second technical problem mentioned above is: a dishwasher, characterized in that it includes a cabinet and the above-mentioned water flow system, the front side of the cabinet is open, and the water supply pipe is arranged in the cabinet and adjacent to the rear side wall of the cabinet.

[0027] Compared with the prior art, the advantages of this utility model are as follows: The spray plate of this utility model can be rotated to a first position and a second position. When the spray plate is in the first position, the water inlet and the spray nozzle are connected, and water can be sprayed out from the spray plate. When the spray plate is in the second position, the water inlet and the spray nozzle are separated, and the spray nozzle is blocked, so no water is sprayed out from the spray plate. That is, when the spray plate needs to spray water, it is rotated to the first position, and when the spray plate does not need to spray water, it is rotated to the second position to adapt to different cleaning needs of the dishwasher. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0029] Figure 2 for Figure 1 A schematic diagram of the water flow system;

[0030] Figure 3 for Figure 2 A schematic diagram of the decomposition process;

[0031] Figure 4 for Figure 3 Enlarged view of point A in the image;

[0032] Figure 5 for Figure 4 A partial structural diagram;

[0033] Figure 6 for Figure 3 A schematic diagram of the structure of the main body in the diagram;

[0034] Figure 7 for Figure 3 A partial sectional view;

[0035] Figure 8 for Figure 5 A schematic diagram of its breakdown. Detailed Implementation

[0036] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0037] like Figures 1-8 As shown, the dishwasher of this preferred embodiment includes a cabinet 1 and a water flow system. The front of the cabinet 1 is open, and the water flow system includes a water supply pipe 2, which is disposed in the cabinet 1 and adjacent to the rear side wall of the cabinet 1.

[0038] The water flow system also includes a back spray arm and a top spray arm 3. The back spray arm includes a body 4 and a spray plate 5.

[0039] The water supply pipe 2 extends vertically and has a first outlet 21. The main body 4 extends horizontally and is located at the first outlet 21. The main body 4 has an inlet 41 that communicates with the first outlet 21. Spray nozzles 42 are provided on the wall surface of the main body 4 away from the water supply pipe 2. At least two spray nozzles 42 can be arranged at intervals along the length of the main body 4, and a spray plate 5 is provided at each spray nozzle 42.

[0040] The spray plate 5 is hollow inside. A water outlet 51 is provided on the wall surface of the spray plate 5 near the water outlet 42, and a spray hole 52 is provided on the wall surface of the spray plate 5 away from the water outlet 42. The spray hole 52 is used to spray water out of the spray plate 5.

[0041] like Figures 4-8 As shown, the main body 4 is provided with an annular body 43 surrounding the water nozzle 42. The spray plate 5 is rotatably embedded in the annular body 43 around its axis. The annular body 43 has a first positioning hole 431 and a second positioning hole 432 spaced apart along its circumference on its peripheral wall. The spray plate 5 is provided with a positioning part 62. The spray plate 5 can be in a first position and a second position. When the spray plate 5 is in the first position, the water outlet 51 is connected to the water nozzle 42, and the positioning part 62 can be detachably inserted into the first positioning hole 431. At this time, water can be sprayed out from the spray plate 5. When the spray plate 5 is in the second position, the water outlet 51 is offset from the water nozzle 42, and the positioning part 62 can be detachably inserted into the second positioning hole 432. At this time, the water nozzle 42 is blocked, and water cannot be sprayed out from the spray plate 5.

[0042] The side wall of the spray plate 5 is provided with a through hole 53. When the spray plate 5 is in the first position, the through hole 53 faces the first positioning hole 431; when the spray plate 5 is in the second position, the through hole 53 faces the second positioning hole 432.

[0043] The spray plate 5 is provided with a positioning element 6, a first elastic element 61, a driving element 7, and a second elastic element 71.

[0044] The positioning member 6 can move toward or away from the perforation 53, so that the positioning member 6 can partially protrude out of the perforation 53 or retract into the spray plate 5. The part of the positioning member 6 that can protrude out of the perforation 53 is the positioning part 62.

[0045] The first elastic element 61 acts on the positioning element 6, causing the positioning element 6 to maintain the tendency of the positioning part 62 to move in the direction of retracting the spray plate 5. In this embodiment, the first elastic element 61 is a spring, with one end abutting against the positioning element 6 and the other end abutting against the side wall of the spray plate 5.

[0046] The driving member 7 is used to drive the positioning member 6 so that the positioning part 62 moves toward the through hole 53, so that the positioning part 62 is inserted into the first positioning hole 431 or the second positioning hole 432 to position the spray plate 5; the driving member 7 can release the driving of the positioning member 6, and the positioning member 6 will move under the action of the first elastic member 61, so that the positioning part 62 retracts into the spray plate 5, at which time the spray plate 5 can be rotated.

[0047] Specifically, the driving member 7 is disposed in the spray plate 5 and can move along the axial direction of the annular body 43. The driving member 7 includes a pressing rod 72 extending along the axial direction of the annular body 43 and a pushing part 73 disposed on the peripheral wall of the pressing rod 72. The positioning member 6 is located beside the pressing rod 72, and the pushing part 73 extends toward the positioning member 6. When the driving member 7 moves away from the spray nozzle 42, it can push the positioning member 6 so that the positioning part 62 moves toward the through hole 53. The pushing part 73 of the driving member 7 is provided with a first inclined surface 74 extending toward the side wall where the through hole 53 is located in the direction of its movement toward the spray nozzle 42. The positioning member 6 is provided with a second inclined surface 63 extending toward the side wall where the through hole 53 is located in the direction of its movement toward the spray nozzle 42. When the driving member 7 moves away from the spray nozzle 42, the first inclined surface 74 and the second inclined surface 63 abut against each other, causing the positioning member 6 to move.

[0048] The second elastic element 71 acts on the driving element 7, causing the driving element 7 to maintain a tendency to move away from the spray nozzle 42. The second elastic element 71 is a spring, with one end abutting against the driving element 7 and the other end abutting against the side wall of the spray plate 5. The wall surface of the spray plate 5 with the spray holes 52 has an opening 50. The end of the pressing rod 72 can be located in the opening 50. In this state, the pushing part 73 abuts against the inner wall surface of the spray plate 5, and the pressing rod 72 cannot continue to move away from the spray nozzle 42. The driving element 7 abuts against the positioning part 6, and the positioning part 62 is inserted into the first positioning hole 431 or the second positioning hole 432 through the through hole 53.

[0049] The pressing rod 72 of the driving member 7 moves to the point where its end is located in the opening 50 for pressing. When pressed, the pressing rod 72 moves toward the water nozzle 42 to a state where it is no longer in contact with the positioning member 6, thereby releasing the driving force on the positioning member 6.

[0050] When the driving member 7 is pressed, it moves toward the spray nozzle 42, thereby releasing the drive of the positioning member 6. The positioning member 6 moves under the action of the first elastic member 61, causing the positioning part 62 to retract into the spray plate 5, allowing the spray plate 5 to rotate to the first position or the second position. When the driving member 7 is not pressed, it moves away from the spray nozzle 42 under the action of the second elastic member 71, pushing the positioning member 6 so that the positioning part 62 moves toward the through hole 53 and is inserted into the first positioning hole 431 or the second positioning hole 432, thus achieving the positioning of the spray plate 5.

[0051] The pushing part 73 has at least two parts spaced apart circumferentially along the pressing rod 72. Correspondingly, the positioning member 6, the through hole 53, the first positioning hole 431, and the second positioning hole 432 also have at least two parts. In this embodiment, there are two pushing parts 73.

[0052] The spray plate 5 includes a first housing 54 and a second housing 55 that can be joined together. The first housing 54 and the second housing 55 together enclose a receiving space for accommodating the positioning member 6 and the driving member 7. An opening 50 is provided on the first housing 54, and a through hole 53 is provided on the second housing 55. The positioning member 6, the driving member 7, etc. can be placed in the second housing 55 first, and then the first housing 54 and the second housing 55 can be connected.

[0053] To accommodate the washing of multiple dish racks, the water supply pipe 2 is also equipped with a second water outlet 22 located above the first water outlet 21, and a top spray arm 3 connected to the second water outlet 22 is provided thereto. The top spray arm 3 can adopt an existing structure to wash the upper dish rack, while the spray plate 5 washes the lower dish rack. The head of the top spray arm 3 can be increased by rotating the spray plate 5 to a second position.

[0054] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Since the embodiments disclosed in this utility model can be set in different directions, these terms indicating direction are only for illustration and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

Claims

1. A water flow system for a dishwasher, comprising: Water supply pipe (2), wherein the water supply pipe (2) is provided with a first water outlet (21); The main body (4) is located at the first water outlet (21). The main body (4) is provided with a water inlet (41) that is connected to the first water outlet (21). A spray nozzle (42) is provided on the wall surface of the main body (4) away from the water supply pipe (2). The spray plate (5) is hollow inside and is installed at the spray nozzle (42). The spray plate (5) has a water outlet (51) on the wall surface near the spray nozzle (42) and a spray hole (52) on the wall surface away from the spray nozzle (42). Its features are, The main body (4) is provided with an annular body (43) surrounding the water nozzle (42). The spray plate (5) is rotatably embedded in the annular body (43) around its axis. The spray plate (5) can be in a first position and a second position. When the spray plate (5) is in the first position, the water inlet (51) is connected to the water nozzle (42). When the spray plate (5) is in the second position, the water inlet (51) is offset from the water nozzle (42).

2. The water flow system according to claim 1, characterized in that: The annular body (43) has a first positioning hole (431) and a second positioning hole (432) spaced apart along its circumference on its peripheral wall. The spray plate (5) is provided with a positioning part (62). When the spray plate (5) is in the first position, the positioning part (62) can be detachably inserted into the first positioning hole (431). With the spray plate (5) in the second position, the positioning part (62) can be detachably inserted into the second positioning hole (432).

3. The water flow system according to claim 2, characterized in that: The spray plate (5) has a through hole (53) on its side wall. When the spray plate (5) is in the first position, the through hole (53) faces the first positioning hole (431); when the spray plate (5) is in the second position, the through hole (53) faces the second positioning hole (432). The spray plate (5) is equipped with Positioning member (6), the positioning member (6) can move toward or away from the perforation (53), so that the positioning member (6) can partially pass through the perforation (53) or retract into the spray plate (5), the part of the positioning member (6) that can pass through the perforation (53) is the positioning part (62). The first elastic element (61) acts on the positioning element (6) to make the positioning element (6) maintain the tendency of the positioning part (62) to move in the direction of the retracted spray plate (5); A driving member (7) is used to drive the positioning member (6) so that the positioning part (62) moves toward the through hole (53), and the driving member (7) can release the driving of the positioning member (6).

4. The water flow system according to claim 3, characterized in that: The spray plate (5) has an opening (50) on the wall surface with spray holes (52). The driving member (7) is located in the spray plate (5) and can move along the axis of the annular body (43). When the driving member (7) moves away from the spray nozzle (42), it can push the positioning member (6) so that the positioning part (62) moves toward the through hole (53). The driving member (7) can move until its end is located in the opening (50). In this state, the driving member (7) abuts against the positioning member (6). The positioning part passes through the through hole (53) and is inserted into the first positioning hole (431) or the second positioning hole (432). The driving member (7) is pressed and moves toward the water nozzle (42) until it is no longer in contact with the positioning member (6); The spray plate (5) is also provided with a second elastic element (71) that acts on the drive member (7), so that the drive member (7) tends to move away from the spray nozzle (42).

5. The water flow system according to claim 4, characterized in that: The driving member (7) is provided with a first inclined surface (74) extending toward the side wall where the perforation (53) is located in the direction of its movement toward the water nozzle (42), and the positioning member (6) is provided with a second inclined surface (63) extending toward the side wall where the perforation (53) is located in the direction of its movement toward the water nozzle (42).

6. The water flow system according to claim 5, characterized in that: The driving member (7) includes a pressing rod (72) extending along the axial direction of the annular body (43) and a pushing part (73) provided on the peripheral wall of the pressing rod (72). The end of the pressing rod (72) can be located in the opening (50). The positioning member (6) is located on the side of the pressing rod (72). The pushing part (73) extends toward the positioning member (6). The first inclined surface (74) is provided on the pushing part (73). The pushing part (73) can abut against the inner wall surface of the spray plate (5).

7. The water flow system according to claim 6, characterized in that: The pushing part (73) has at least two parts spaced apart along the circumference of the pressing rod (72), and correspondingly, there are at least two positioning parts (6), through holes (53), first positioning holes (431), and second positioning holes (432).

8. The water flow system according to any one of claims 1 to 7, characterized in that: The spray plate (5) includes a first housing (54) and a second housing (55) that can be connected to each other. The first housing (54) and the second housing (55) together enclose a space for accommodating the positioning member (6) and the driving member (7).

9. The water flow system according to any one of claims 1 to 7, characterized in that: The water supply pipe (2) is also provided with a second water outlet (22) located above the first water outlet (21), and a top spray arm (3) connected to the second water outlet (22) is provided thereto.

10. A dishwasher, characterized in that, Includes a housing (1) and a water flow system as described in any one of claims 1 to 9, wherein the front of the housing (1) is open and the water supply pipe (2) is disposed in the housing (1) and adjacent to the rear side wall of the housing (1).

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