Spraying arm seat and dish washing machine

Abstract

The spraying arm seat comprises a main seat body and two deformation parts arranged on the two opposite sides of the main seat body respectively, the main seat body is used for assembling a spraying arm of the dish washing machine, and the main seat body is provided with a first surface facing an inner container bottom plate. Each deformation part comprises a first end far away from the main seat body, and the two deformation parts incline towards the side where the first surface of the main seat body is located in the direction, facing the first end, of the main seat body, so that the deformation parts can elastically deform relative to the main seat body and are in close contact with the liner bottom plate under the acting force of elastic recovery. Moreover, the deformation part is obliquely arranged relative to the main seat body, so that local deformation possibly caused by cooling shrinkage deformation after injection molding and a use process can be compensated, the problem of poor matching between the spraying arm seat and the liner bottom plate or the filter screen is favorably solved, food residues are prevented from penetrating through a gap between the spraying arm seat and the liner bottom plate or the filter screen, and the service life of the spraying arm seat is prolonged. The filtering effect is improved.

Description

Technical Field

[0001] This application relates to the field of dishwasher technology, and more particularly to a spray arm holder and a dishwasher. Background Technology

[0002] A dishwasher is a kitchen appliance used to automatically clean dishes, plates, cutlery, and other tableware. In a dishwasher, the spray arms are mounted in the central area of ​​the inner tank floor via spray arm mounts, creating a bottom spray effect that radiates outwards from the center to clean the tableware inside. Below the spray arms is a filter screen, which is connected to the spray arm mounts and installed together in the inner tank floor to collect water falling from the tableware and filter out impurities from the water.

[0003] However, in order to fit the shape of the filter screen, the spray arm seat often has irregular structures such as sharp corners. These sharp corner structures are prone to warping and deformation, which can cause gaps between the spray arm seat and the inner tank bottom plate or filter screen, affecting the filtration effect. Utility Model Content

[0004] This application provides a spray arm holder and a dishwasher, which can solve the problem of gaps easily forming between the spray arm holder and the inner tank bottom plate or filter screen.

[0005] In a first aspect, embodiments of this application provide a spray arm holder for mounting on the inner tub bottom plate of a dishwasher. The spray arm holder includes a main body and two deformable portions: the main body is used to assemble the spray arm of the dishwasher, and the main body has a first surface facing the inner tub bottom plate; in a first direction parallel to the first surface, the two deformable portions are disposed on opposite sides of the main body, and the deformable portions are integrally formed with the main body; wherein, the deformable portion includes a first end away from the main body, and in the direction of the main body towards the first end, both deformable portions are inclined toward the side where the first surface of the main body is located, so that the deformable portions can deform to fit against the inner tub bottom plate.

[0006] In some embodiments, the tilt angle of the deformed portion relative to the first surface is α, where 1°≤α≤6°; and / or, in the direction perpendicular to the first surface, the maximum deviation distance from the first end to the first surface is H, where 0mm<H≤6mm.

[0007] In some embodiments, the deformable portion extends at an angle to the first surface and is flat; or, the deformable portion is curved relative to the first surface, and the curvature of the deformable portion gradually increases in the direction of the main body toward the first end.

[0008] In some embodiments, the width of the deformable portion gradually decreases in the direction of the main body toward the first end; and / or, at least a portion of the thickness of the deformable portion gradually decreases in the direction of the main body toward the first end; and / or, at least a portion of the thickness of the deformable portion remains unchanged in the direction of the main body toward the first end.

[0009] In some embodiments, the deformable portion has a first outer edge and a first inner edge, the first inner edge being directed toward the filter of the dishwasher and being concave; wherein, in a direction away from the main body, the first outer edge and the first inner edge gradually approach each other until they intersect.

[0010] In some embodiments, the main body has a second outer edge and a second inner edge, the second inner edge being convex and arc-shaped, facing the filter of the dishwasher; wherein the second outer edge is smoothly connected to the first outer edge, and the second inner edge is smoothly connected to the first inner edge.

[0011] In some embodiments, in a second direction perpendicular to the first direction and parallel to the first surface, the first ends of the two deformed portions are located on the same side of the connection between the second inner edge and the first inner edge.

[0012] In some embodiments, the deformable portion has a first inner edge facing the dishwasher filter; the spray arm seat further includes a mounting member disposed on the first inner edge of the deformable portion, the mounting member being for assembling with the dishwasher filter; the connection between the deformable portion and the main body forms a connection boundary, and along the first direction, the distance from the mounting member to the connection boundary is D1, and the distance from the mounting member to the first end is D2, wherein D1 > D2.

[0013] In some embodiments, the main body has a central axis, a second outer edge and a second inner edge, the second inner edge being positioned toward the dishwasher filter, the central axis being located on the line connecting the midpoint of the second outer edge and the midpoint of the second inner edge; the two deformable portions are arranged axially symmetrically about the central axis.

[0014] In some embodiments, a connection boundary is formed at the connection between each of the deformable parts and the main body; in the direction from the second outer edge of the main body to the second inner edge, the distance from the connection boundary to the central axis gradually increases or remains constant.

[0015] In some embodiments, the main body has a second inner edge facing the dishwasher filter; the spray arm seat further includes a mating flange disposed on the second inner edge of the main body, the mating flange having a mating surface that is inclined to the side where the first surface of the main body is located, the mating surface being for fitting against the dishwasher filter.

[0016] In some embodiments, the deformable portion has a first inner edge for facing the dishwasher filter; the mating flange also extends to the first inner edge of the deformable portion, and the mating flange is spaced apart from the first end.

[0017] In some embodiments, the spray arm seat further includes a first mounting portion disposed on the main body, the first mounting portion being used to mount the spray arm of the dishwasher; and / or, the spray arm seat further includes a second mounting portion disposed on the main body, the second mounting portion being used to mount the inner water pipe assembly of the dishwasher.

[0018] This application embodiment also provides a dishwasher, which includes an inner liner, a water cup assembly, and the spray arm seat. The inner liner includes an inner liner bottom plate, and the water cup assembly includes a filter screen. The filter screen and the spray arm seat are spliced ​​together and installed on the inner liner bottom plate, and the deformable part of the spray arm seat deforms to fit against the inner liner bottom plate.

[0019] According to an embodiment of this application, a spray arm holder and dishwasher have a deformable portion that is inclined towards the side containing the first surface of the main body, in the direction of the main body facing the first end. Thus, after the deformable portion and the main body are fitted together on the inner liner bottom plate, the deformable portion undergoes elastic deformation relative to the main body and, under the force of elastic recovery, makes tight contact with the inner liner bottom plate. Furthermore, the inclined arrangement of the deformable portion relative to the main body can compensate for deformation caused by cooling shrinkage after injection molding and for localized deformation that may occur during use. This helps to improve the problem of poor fit between the spray arm holder and the inner liner bottom plate or filter screen, preventing food residue from passing through the gap between the spray arm holder and the inner liner bottom plate or filter screen, and improving the filtration effect. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of a dishwasher according to an embodiment of this application;

[0022] Figure 2 This is a partial exploded structural diagram of a dishwasher according to an embodiment of this application;

[0023] Figure 3 This is a schematic diagram of the structure of a spray arm holder according to an embodiment of this application;

[0024] Figure 4 for Figure 3 A partial sectional view along the AA direction;

[0025] Figure 5 This is a top view of a spray arm mount according to an embodiment of this application;

[0026] Figure label:

[0027] 1. Inner liner; 11. Inner liner bottom plate; 12. Inner liner main body;

[0028] 2. Spray arm; 21. Connecting seat; 22. Main arm; 221. Water spray nozzle;

[0029] 3. Spray arm seat; 31. Main seat body; 310. First surface; 31a. Central axis; 311. Second outer edge; 312. Second inner edge; 313. First mounting hole; 314. Second mounting hole; 315. Second surface; 32. Deformation part; 320. First end; 321. First outer edge; 322. First inner edge; 323. Third surface; 33. Connecting boundary; 34. Mating flange; 340. Mating surface; 35. Mounting part; 36. First mounting part; 37. Second mounting part;

[0030] 4. Water cup assembly; 41. Filter screen; 42. Water cup;

[0031] X, first direction; Y, second direction; Z, vertical direction. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0033] In the dishwasher, the spray arm is mounted to the bottom plate of the inner tank via a spray arm mount. By using an irregularly shaped water cup assembly, the filter screen within the water cup assembly is fitted to the spray arm mount, ensuring that the water cup assembly at least partially surrounds the spray arm mount. This increases the filtration area and improves the filtration efficiency of the water cup assembly. Water filtered by the filter screen is collected in the water cup of the water cup assembly and recycled before being sprayed out from the spray arm again.

[0034] The inventors discovered that filters are typically made of sheet metal in one piece, with an arc-shaped outer edge. To accommodate the shape of the filter, the spray arm holder often has irregularly shaped structures such as sharp corners. These sharp corner areas are prone to warping and deformation during manufacturing or use, creating gaps between the spray arm holder and the inner tank bottom plate or filter. These gaps may allow food residue to enter the spray arm, contaminating the washing water and weakening the dishwasher's cleaning power. Based on this, this application provides a spray arm holder and a dishwasher.

[0035] Please see Figures 1-2 In some embodiments, the dishwasher includes an inner tub 1, a spray arm 2, a spray arm base 3, and a water cup assembly 4. The inner tub 1 includes an inner tub bottom plate 11 and an inner tub body 12, which together form a receiving space for placing tableware. The spray arm 2 is disposed in the receiving space and includes a connecting seat 21, which is mounted on the spray arm base 3, which is mounted on the inner tub bottom plate 11. Specifically, the spray arm 2 also includes a main arm 22, which is connected to the connecting seat 21. The main arm 22 has a hollow inner cavity. One end of the connecting seat 21 is connected to the hollow inner cavity, and the other end is connected to a water inlet pipe. The spray arm 2 also has a plurality of water outlet nozzles 221 that communicate with the hollow inner cavity and are oriented towards the tableware. Thus, water supplied by the water inlet pipe enters the hollow inner cavity through the connecting seat 21 and is sprayed onto the tableware from the water outlet nozzles 221 of the spray arm 2 to clean the tableware.

[0036] The water cup assembly 4 includes a filter screen 41 and a water cup 42. In the vertical direction Z, the filter screen 41 is located below the spray arm 2. The filter screen 41 receives water falling from the tableware and filters the water to remove impurities attached to it. The water cup 42 has a return water chamber, which is connected to the inlet pipe. The filter screen 41 is installed at the opening of the return water chamber so that the water filtered by the filter screen 41 can flow into the return water chamber and be transported to the spray arm 2 through the inlet pipe, and then sprayed onto the tableware again to achieve the recycling of clean water. The outer contour of the filter screen 41 matches the outer contour of the spray arm seat 3. The two are installed together on the inner tank bottom plate 11 and form a filtration barrier for the washing circulating water of the spray arm 2, so that the water cup assembly 4 at least partially surrounds the spray arm seat 3.

[0037] like Figure 3 As shown, the spray arm base 3 includes a main body 31 and two deformable parts 32. The connecting seat 21 of the spray arm 2 is mounted on the main body 31. The main body 31 has a first surface 310 facing the inner liner bottom plate 11. The first surface 310 is planar. The main body 31 includes flanges disposed around the first surface 310, and the flanges are in contact with the surface of the inner liner bottom plate 11. The main body also includes reinforcing ribs disposed on the first surface 310. The reinforcing ribs are used to enhance the structural strength of the main body 31, and the reinforcing ribs are either in contact with or spaced apart from the surface of the inner liner bottom plate 11.

[0038] Optionally, the first surface 310 is planar and fits against the surface of the inner liner bottom plate 11, improving the installation stability of the spray arm seat 3 on the inner liner bottom plate 11. For example, the main seat 31 is flat to guide the water falling from the tableware to flow smoothly to the filter screen 41.

[0039] The first surface 310 is flat so that it fits snugly against the surface of the inner liner bottom plate 11, improving the installation stability of the spray arm seat 3 on the inner liner bottom plate 11. Optionally, the main seat 31 is flat to guide the water falling from the tableware to flow smoothly to the filter screen 41.

[0040] like Figure 3 As shown, in the first direction X, parallel to the first surface 310, two deformable portions 32 are respectively disposed on opposite sides of the main body 31. Each deformable portion 32 includes a first end 320 away from the main body 31. In the direction from the main body 31 towards the first end 320, the width of the deformable portion 32 gradually decreases in the second direction Y to adapt to the shape of the filter screen 41. The deformable portion 32 is easily deformable, allowing it to adhere tightly to the inner liner bottom plate 11 after deformation. Supported by the inner liner bottom plate 11, it maintains good structural stability of the spray arm seat 3, ensuring stable cooperation between the deformable portion 32 and the filter screen 41 and preventing uncontrollable gaps between them. The second direction Y is parallel to the first surface 310 and perpendicular to the first direction X.

[0041] like Figure 4 As shown, in the direction of the main body 31 toward the first end 320, both deformable parts 32 are inclined toward the side where the first surface 310 of the main body 31 is located. Thus, after the spray arm seat 3 is installed on the inner liner bottom plate 11, the deformable parts 32 undergo elastic deformation relative to the main body 31, so that both the deformable parts 32 and the main body 31 are fitted to the wall surface of the inner liner bottom plate 11. The deformable parts 32 have a tendency to elastically recover and generate an elastic force toward the inner liner bottom plate 11. Under the action of the elastic force, the deformable parts 32 and the inner liner bottom plate 11 maintain close contact, thereby improving the problem of poor fit between the spray arm seat 3 and the inner liner bottom plate 11.

[0042] In some embodiments, the spray arm holder 3 is a plastic part, and the deformable part 32 is integrally formed with the main body 31. This integral formation helps to enhance the structural strength of the spray arm holder 3 and reduces the risk of overall structural failure due to connection point failure. In specific implementations, the spray arm holder 3 can be processed by various methods, including but not limited to injection molding, extrusion, and compression molding.

[0043] like Figure 5As shown, the deformable part 32 has a first outer edge 321 and a first inner edge 322. The first inner edge 322 is directed toward the filter screen 41 of the dishwasher, and the first inner edge 322 is concave arc-shaped. In the direction away from the main body 31, the first outer edge 321 and the first inner edge 322 gradually approach each other until they intersect. That is, the deformable part 32 forms a sharp corner at the end away from the main body 31 to adapt to the convex arc shape of the outer periphery of the filter screen 41. The spray arm seat 3 and the filter screen 41 are assembled to form a square or circular water filtration barrier.

[0044] Please see Figure 5 The main body 31 has a second outer edge 311 and a second inner edge 312. The second inner edge 312 is convex arc-shaped and is oriented towards the filter 41 of the dishwasher and adapted to match the filter 41. The main body 31 also has a central axis 31a, which is located on the line connecting the midpoint of the second outer edge 311 and the midpoint of the second inner edge 312. The two deformable parts 32 are arranged symmetrically about the central axis 31a, and the symmetrical arrangement ensures the balance of forces on both sides of the main body 31.

[0045] In some embodiments, the second outer edge 311 is smoothly connected to the first outer edge 321, and the second inner edge 312 is smoothly connected to the first inner edge 322, so that the spray arm seat 3 can form a smooth profile to match the profile of the filter screen 41, ensuring close contact and fit between the two.

[0046] In the second direction Y, the first ends 320 of the two deformable parts 32 are located on the same side of the connection between the second inner edge 312 and the first inner edge 322, so as to prevent the deformable parts 32 from occupying too much space of the filter screen 41, so as to reserve more filtration area and improve the filtration effect. At the same time, it prevents the first end 320 of the deformable part 32 from being too far away from the main body 31, which would cause the deformation of the deformable part 32 to be unstable.

[0047] In some embodiments, the tilt angle of the deformable part 32 relative to the first surface 310 is α, where 1° ≤ α ≤ 6°. It is understood that the tilt angle of the deformable part 32 relative to the first surface 310 directly affects the fitting effect of the deformable part 32. When the tilt angle α < 1°, the tilt angle α is too small, the elastic deformation of the deformable part 32 is small, and the deformable part 32 cannot fully fit against the wall of the inner liner bottom plate 11, resulting in an increased fitting gap. When the tilt angle α > 6°, the tilt angle α is too large, and the deformable part 32 bends excessively during installation. The deformable part 32 is prone to breakage or irreversible deformation when it abuts against the inner liner bottom plate 11, which not only affects the installation stability but also causes excessive pressure on the inner liner bottom plate 11, damaging the inner liner bottom plate 11. Optionally, the tilt angle α is 3.0° ≤ α ≤ 4.0°.

[0048] In the direction perpendicular to the first surface 310, the maximum deviation distance from the first end 320 to the first surface 310 is H, where 0 mm < H ≤ 6 mm. It is understood that the maximum deviation distance H characterizes the inclination degree of the deformable part 32. When the maximum deviation distance H = 0 mm, the inclination degree of the deformable part 32 is too small, and the deformable part 32 cannot provide sufficient elastic deformation to adapt to the wall shape of the inner liner bottom plate 11. When the maximum deviation distance H > 6 mm, the inclination degree of the deformable part 32 is too large, and the deformable part 32 bends excessively during installation, which not only increases the installation difficulty but may also cause damage to the deformable part 32 or the inner liner bottom plate 11. Optionally, the maximum deviation distance H can be 4 mm.

[0049] In some embodiments, the deformable portion 32 is flat and extends along a direction at an angle to the first surface 310. The flat design not only facilitates molding but also helps the deformable portion 32 to better fit against the wall of the inner liner bottom plate 11 during installation.

[0050] In some embodiments, the deformable portion 32 is bent relative to the first surface 310, and the curvature of the deformable portion 32 gradually increases in the direction of the main body 31 toward the first end 320. As the curvature gradually increases, the deformable portion 32 can more easily undergo elastic deformation when subjected to external force, thereby adapting to different installation conditions and the wall shape of the inner liner bottom plate 11.

[0051] In some embodiments, the thickness of at least a portion of the deformable portion 32 gradually decreases in the direction from the main seat 31 toward the first end 320. For example, the thickness of the deformable portion 32 gradually decreases in the region near the first end 320, that is, the thickness of the sharp corner region of the deformable portion 32 gradually decreases, making it easier for the sharp corner region to deform under force, thus ensuring a tight fit between the sharp corner region and the inner liner bottom plate 11. Alternatively, the thickness of the deformable portion 32 gradually decreases from the main seat 31 toward the direction away from the main seat 31, making it easier for the deformable portion 32 to deform under force, thereby ensuring a tight fit with the inner liner bottom plate 11.

[0052] In some embodiments, at least a portion of the thickness of the deformable portion 32 remains constant in the direction of the main body 31 toward the first end 320. For example, the thickness of the deformable portion 32 near the main body 31 remains constant, or the thickness of the deformable portion 32 remains constant. In this way, portions of the deformable portion 32 with the same thickness can provide consistent elastic deformation capability, enhance the structural stability of the deformable portion 32, and help improve the deformation of the deformable portion 32 due to cooling shrinkage after molding.

[0053] In some embodiments, the thickness of the deformable portion 32 near the first end 320 gradually decreases, while the thickness of the deformable portion 32 near the main body 31 remains unchanged. The portions of the deformable portion 32 with the same thickness can provide consistent elastic deformation capability, and the sharp corner regions can fit tightly against the inner liner bottom plate 11.

[0054] Please refer to the following: Figure 3 Each deformable part 32 has a connecting boundary 33 formed at the connection point with the main body 31, and the connecting boundary 33 is a transition area between the deformable part 32 and the main body 31. In some embodiments, the distance from the connecting boundary 33 to the central axis 31a remains unchanged in the direction from the second outer edge 311 of the main body 31 to the second inner edge 312. The two connecting boundaries 33 are arranged in parallel and extend in a straight line, so that the deformable part 32 can maintain a relatively uniform and consistent deformation mode when elastic deformation occurs, thereby reducing stress concentration or structural failure caused by uneven deformation. The straight extension of the connecting boundary 33 also helps to simplify the manufacturing and processing of the spray arm seat 3.

[0055] In some embodiments, in the direction from the second outer edge 311 of the main body 31 toward the second inner edge 312, the distance from the connecting boundary 33 to the central axis 31a gradually increases. Thus, the connecting boundary 33 is longer, and the area of ​​the deformable part 32 is increased. The deformable part 32 has a larger elastic deformation space, which in turn allows it to fit more tightly against the wall of the inner liner bottom plate 11.

[0056] In some embodiments, the spray arm seat 3 further includes a mating flange 34, which is disposed on the second inner edge 312 of the main seat body 31. The filter screen 41 overlaps with the mating flange 34 of the spray arm seat 3. The mating flange 34 has a mating surface 340 that is inclined toward the side where the first surface 310 of the main seat body 31 is located. The mating surface 340 is used to fit against the filter screen 41 of the dishwasher, so that the filter screen 41 is placed above the mating surface 340, thereby ensuring a tight fit and stable connection between the filter screen 41 and the spray arm seat 3, and reducing the possibility of leakage and backflow of recycled water.

[0057] In some embodiments, the main seat 31 has a second surface 315 facing away from the inner tank bottom plate 11. In a direction perpendicular to the first surface 310, the second surface 315 may be located above the filter screen 41; or, in the direction from the second outer edge 311 of the main seat 31 towards the second inner edge 312, the second surface 315 is inclined toward the side where the inner tank bottom plate 11 is located, so as to guide the water flow to the filter screen 41 and prevent the water flow from stagnating in the spray arm seat 3.

[0058] In some embodiments, the deformable portion 32 has a third surface 323 facing away from the inner tank bottom plate 11. In a direction perpendicular to the first surface 310, the third surface 323 may be located above the filter screen 41. Alternatively, in the direction from the first outer edge 321 of the deformable portion 32 toward the first inner edge 322, the third surface 323 may be inclined toward the side where the inner tank bottom plate is located, so as to guide the water flow to the filter screen 41 and prevent the water flow from stagnating in the spray arm seat 3.

[0059] Furthermore, the mating flange 34 extends to the first inner edge 322 of the deformable portion 32. The mating flange 34 has a relatively long extension length, which increases the mating stability between the filter screen 41 and the spray arm seat 3. It should be noted that the portion of the deformable portion 32 near the first end 320 has a smaller width in the second direction X. The mating flange 34 is spaced apart from the first end 320 to avoid excessive interference from the mating flange 34 on the elastic deformation of the deformable portion 32.

[0060] The spray arm holder 3 also includes a mounting member 35, which is located on the first inner edge 322 of the deformable portion 32. The mounting member 35 is used to assemble with the dishwasher filter 41. In a specific implementation, the filter 41 and the spray arm holder 3 overlap, and the mounting member 35 at least partially abuts against the filter 41 from top to bottom to fix the relative position of the filter 41 with respect to the spray arm holder 3, preventing the filter 41 from shifting or falling off during dishwasher operation. Optionally, the spray arm holder 3 can be installed on the inner tank bottom plate 11 using fasteners (such as screws, bolts, etc.).

[0061] Along the first direction X, the distance from the mounting member 35 to the connecting boundary 33 is D1, and the distance from the mounting member 35 to the first end 320 is D2, where D1 > D2. It is understood that the connection between the spray arm seat 3 and the inner liner bottom plate 11 via the mounting member 35 forces the deformable part 32 to undergo elastic deformation, resulting in stress concentration in the area near the mounting member 35. Therefore, by placing the mounting member 35 closer to the first end 320, the distance between the two mounting members 35 in the first direction X is greater, which helps to disperse the stress in the spray arm seat 3 and improve the overall structural durability.

[0062] It is understandable that the main body 31 is not easily deformed; therefore, the position for mounting the spray arm 2 and other components is located on the main body 31 to avoid poor fit due to deformation. The spray arm seat 3 also includes a first mounting part 36, which is located on the main body 31 and is used for assembly with the connecting seat 21 of the dishwasher's spray arm 2. Optionally, the spray arm seat 3 also includes a second mounting part 37, which is located on the main body 31 and is used for mounting the dishwasher's inner water pipe assembly. One end of the inner water pipe assembly is connected to the water inlet pipe, and the other end extends to the side wall of the inner tank 1 and connects to the accommodating space, and is connected to another spray arm (not shown in the figure). The inner water pipe assembly is used to supply water to the other spray arm to clean the dishes.

[0063] This application also provides a dishwasher, which includes an inner tank 1, a spray arm 2, a spray arm seat 3, and a water cup assembly 4. The inner tank 1 includes an inner tank bottom plate 11, and the spray arm 2 includes a connecting seat 21, which is mounted on the spray arm seat 3, and the spray arm seat 3 is mounted on the inner tank bottom plate 11. The water cup assembly 4 includes a filter screen 41 and a water cup 42. The inner tank bottom plate 11 has an installation opening, and the water cup 42 is adapted to be disposed in the installation opening. The water cup 42 is used to recycle water in the accommodating space of the inner tank 1. The water cup 42 has a return water chamber, and the filter screen 41 is installed at the opening of the return water chamber and can remove impurities attached to the recycled water. The outer contour of the filter screen 41 matches the outer contour of the spray arm seat 3, and the two are fitted together and installed on the inner tank bottom plate 11 to form a filtration barrier for the washing circulating water of the spray arm 2, so that the water cup assembly 4 at least partially surrounds the spray arm seat 3. The specific structure of the spray arm seat 3 is the same as described in the above embodiment, and will not be repeated here.

[0064] This embodiment of the application uses the spray arm seat 3 as described above. The elastic deformation generated by the spray arm seat 3 during the installation process compensates for the local deformation that may occur due to cooling shrinkage after injection molding and during use. This helps to improve the problem of poor fit between the spray arm seat 3 and the inner tank bottom plate 11, reduces the possibility of food residue entering the spray arm 2 through the gap, and thus improves the cleaning effect of the dishwasher.

[0065] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0066] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A spray arm holder (3) for mounting on the inner tank bottom plate (11) of a dishwasher, the spray arm holder (3) comprising: A main body (31) for assembling the spray arm (2) of the dishwasher, the main body (31) having a first surface (310) facing the inner tank bottom plate (11); and Two deformation portions (32) are disposed on opposite sides of the main body (31) in a first direction (X) parallel to the first surface (310), and the deformation portions (32) are integrally disposed with the main body (31). The deformable portion (32) includes a first end (320) away from the main body (31). In the direction of the main body (31) toward the first end (320), both deformable portions (32) are inclined toward the side where the first surface (310) of the main body (31) is located, so that the deformable portion (32) can deform to fit with the inner liner bottom plate (11).

2. The spray arm holder (3) according to claim 1, characterized in that, The angle of inclination of the deformable portion (32) relative to the first surface (310) is α, where 1° ≤ α ≤ 6°; and / or, In the direction perpendicular to the first surface (310), the maximum deviation distance from the first end (320) to the first surface (310) is H, where 0 mm < H ≤ 6 mm.

3. The spray arm holder (3) according to claim 1, characterized in that, The deformable portion (32) extends along a direction forming an angle with the first surface (310) and is flat; or, The deformable portion (32) is bent relative to the first surface (310), and the curvature of the deformable portion (32) gradually increases in the direction of the main body (31) toward the first end (320).

4. The spray arm holder (3) according to claim 1, characterized in that, In the direction of the main body (31) toward the first end (320), the width of the deformable portion (32) gradually decreases; and / or, In the direction of the main body (31) toward the first end (320), at least a portion of the thickness of the deformed portion (32) gradually decreases; and / or, In the direction of the main body (31) toward the first end (320), at least a portion of the thickness of the deformable part (32) remains unchanged.

5. The spray arm holder (3) according to claim 1, characterized in that, The deformable part (32) has a first outer edge (321) and a first inner edge (322), the first inner edge (322) being directed toward the filter (41) of the dishwasher and being concave arc-shaped; In the direction away from the main body (31), the first outer edge (321) and the first inner edge (322) gradually approach each other until they intersect.

6. The spray arm holder (3) according to claim 5, characterized in that, The main body (31) has a second outer edge (311) and a second inner edge (312), the second inner edge (312) being convex and arc-shaped toward the filter (41) of the dishwasher; The second outer edge (311) is smoothly connected to the first outer edge (321), and the second inner edge (312) is smoothly connected to the first inner edge (322).

7. The spray arm holder (3) according to claim 6, characterized in that, In a second direction (Y) perpendicular to the first direction (X) and parallel to the first surface (310), the first ends (320) of the two deformable portions (32) are located on the same side of the connection between the second inner edge (312) and the first inner edge (322).

8. The spray arm holder (3) according to claim 1, characterized in that, The deformable part (32) has a first inner edge (322) for facing the dishwasher filter (41); The spray arm seat (3) also includes a mounting member (35), which is disposed on the first inner edge (322) of the deformable part (32) and is used to assemble with the filter (41) of the dishwasher; The deformable part (32) forms a connection boundary (33) at the connection point with the main body (31). Along the first direction (X), the distance from the mounting member (35) to the connection boundary (33) is D1, and the distance from the mounting member (35) to the first end (320) is D2, wherein D1 > D2.

9. The spray arm holder (3) according to claim 1, characterized in that, The main body (31) has a central axis (31a), the main body (31) has a second outer edge (311) and a second inner edge (312), the second inner edge (312) is arranged toward the dishwasher filter (41), and the central axis (31a) is located on the line connecting the midpoint of the second outer edge (311) and the midpoint of the second inner edge (312); The two deformable parts (32) are arranged symmetrically about the central axis (31a).

10. The spray arm holder (3) according to claim 9, characterized in that, A connection boundary (33) is formed at the connection between each of the deformable parts (32) and the main body (31); In the direction from the second outer edge (311) of the main body (31) toward the second inner edge (312), the distance from the connecting boundary (33) to the central axis (31a) gradually increases or remains constant.

11. The spray arm holder (3) according to claim 1, characterized in that, The main body (31) has a second inner edge (312) for facing the dishwasher filter (41); The spray arm seat (3) further includes a mating flange (34), which is disposed on the second inner edge (312) of the main body (31). The mating flange (34) has a mating surface (340), which is inclined toward the side where the first surface (310) of the main body (31) is located. The mating surface (340) is used to fit with the filter (41) of the dishwasher.

12. The spray arm holder (3) according to claim 11, characterized in that, The deformable part (32) has a first inner edge (322) for facing the dishwasher filter (41); The mating flange (34) also extends to the first inner edge (322) of the deformable portion (32), and the mating flange (34) is spaced apart from the first end (320).

13. The spray arm holder (3) according to claim 1, characterized in that, The spray arm mount (3) further includes a first mounting portion (36), which is disposed on the main body (31) and is used to mount the spray arm of the dishwasher; and / or, The spray arm seat (3) also includes a second mounting part (37), which is disposed on the main body (31) and is used to install the inner water pipe assembly of the dishwasher.

14. A dishwasher, characterized in that, include: Inner liner (1), including inner liner bottom plate (11); A water cup assembly (4) includes a filter (41); and As described in any one of claims 1-12, the filter screen (41) and the spray arm seat (3) are spliced ​​together and installed on the inner liner bottom plate (11), and the deformable part (32) of the spray arm seat (3) deforms to fit against the inner liner bottom plate (11).

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