A filter device for a dishwasher, a method of assembly and a dishwasher

Abstract

The application provides a filter device of a dishwasher, an assembling method and the dishwasher, the filter device comprises a filter for collecting residues, the filter has a filter support frame and a cup-shaped filter screen arranged on the filter support frame; a concave water tank is arranged on an inner container of the dishwasher, and a locking structure is arranged between the bottom surface of the water tank and the filter support frame. The filter device of the dishwasher provided by the application sets the locking structure between the filter support frame and the bottom surface of the water tank, so that the locking structure has a larger setting space, a relatively firm structure can be set, the strength of the locking structure is increased, the firmness and stability of the filter after installation are improved; in addition, the locking structure is arranged between the bottom surface of the water tank and the filter support frame, so that the position accuracy of the filter after installation can be ensured, and food residues caused by a larger assembly gap from entering the water channel can be avoided.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of dishwashers, and particularly relates to a filter device of a dishwasher, an assembling method of the filter device, and a dishwasher with the filter device. BACKGROUND

[0002] The dishwasher is a device for automatically cleaning dishes, chopsticks, plates, dishes, knives and forks, etc. It reduces the labor intensity of cooks in restaurants, hotels and canteens, improves the work efficiency, and improves the cleanness and sanitation. At present, small dishwashers are gradually entering ordinary families, but food residues are adhered to the dishes, and a filter structure needs to be arranged on the dishwasher.

[0003] In the prior art, a dishwasher commonly used generally comprises an inner container, a water tank is arranged at the bottom of the inner container, a filter assembly is arranged in the water tank, the filter assembly comprises a filter screen and a residue collection net arranged on the filter screen, and the residue collection net extends into the water tank; the residue collection net is locked and fixed in the water tank, and the filter screen is fixed above the water tank through the pressing action of the residue collection net. When the filter screen of the dishwasher needs to be cleaned, the residue collection net needs to be first disassembled, and then the filter screen is taken down for cleaning. Therefore, the filter assembly is inconvenient to clean and has poor practicability.

[0004] In addition, a locking structure matched with the water tank is arranged on the outer side of the frame of the residue collection net, and a certain gap needs to be left between the inner wall of the water tank and the residue collection net for the passing of water flow. Therefore, the fixing and positioning accuracy of the residue collection net is not high, and the stability of the fixing is not good. The edge of the filter screen may be raised, and food residues may directly flow into the waterway from the gap. Or the gap between the residue collection net and the filter screen enters the waterway. The locking structure arranged on the outer side of the frame of the residue collection net has low strength, and is prone to damage during frequent disassembly. SUMMARY

[0005] In view of the above problems in the prior art, the present application provides a filter device of a dishwasher, which has high stability and high positioning accuracy after being assembled and installed on an inner container.

[0006] To achieve the above technical purposes, the present application adopts the following technical solutions:

[0007] A filter device of a dishwasher, comprising a filter for collecting residues, the filter having a filter support frame and a cup-shaped filter screen arranged on the filter support frame; an inner recessed water tank is arranged on an inner container of the dishwasher, and a locking structure is arranged between the bottom surface of the water tank and the filter support frame.

[0008] Further, the locking structure comprises a plurality of first locking members protruding upwardly on the bottom surface of the sink, and a plurality of second locking members extending downwardly on the filter support frame, the first locking members being rotatably locked with the second locking members; and a through hole is formed on the bottom surface of the cup-shaped filter screen for the first locking members to extend into.

[0009] Further, the first locking member has a first supporting portion extending upwardly along the bottom surface of the sink, a first claw portion extending horizontally along the top end of the first supporting portion, and a reinforcing portion arranged outside the first supporting portion and the first claw portion.

[0010] Further, the second locking member has a second supporting portion extending downwardly, and a second claw portion extending outwardly along the outside of the second supporting portion; the lower end surface of the first claw portion and the upper end surface of the second claw portion are matched and engaged.

[0011] Further, the second claw portion is arranged obliquely, and an upwardly extending second stop portion is arranged on the obliquely rising end of the second claw portion for limiting the locking structure to be locked in place.

[0012] Further, an extension portion extending upwardly is arranged at the through hole, and an avoiding slot through which the second claw portion passes is formed on the extension portion.

[0013] Further, a limiting block limiting the rotation of the cup-shaped filter screen is arranged in the sink, and a limiting portion matched with the limiting block is formed on the cup-shaped filter screen.

[0014] Further, the limiting portion has a first limiting opening formed on the bottom surface of the cup-shaped filter screen, and a second limiting opening formed on the side surface of the cup-shaped filter screen, the first limiting opening and the second limiting opening being communicated, and the width of the first limiting opening being greater than the width of the second limiting opening.

[0015] Further, the limiting block has a limiting body matched with the second limiting opening, and a clamping edge extending along the end portion of the limiting body close to the filter axis, the clamping edge being stopped at the inside of the second limiting opening.

[0016] Further, a baffle extending radially upwardly is arranged on the bottom surface of the cup-shaped filter screen, the baffle being located inside the first limiting opening for stopping the limiting block.

[0017] Further, when the filter is mounted on the inner container of the dishwasher, the cup-shaped filter screen is stationary relative to the inner container, and the filter support frame is rotatably locked with the inner container.

[0018] Further, the rotation fixing direction of the cup-shaped filter screen is opposite to the rotation fixing direction of the filter support frame.

[0019] Further, the rotation angle of the cup-shaped filter screen when fixed is smaller than the rotation angle of the filter support frame when fixed.

[0020] Further, the cup-shaped filter screen is provided with a blocking claw, which has a vertical blocking rod protruding inward along the sidewall of the cup-shaped filter screen, and a blocking protrusion extending inward on the blocking rod.

[0021] Further, the filter support frame is provided with a radially extending clamping edge located inside the cup-shaped filter screen, and an arc-shaped first avoiding opening matching the blocking rod is formed on the clamping edge, and a second avoiding opening matching the blocking protrusion is formed at one end of the first avoiding opening.

[0022] Further, an upward extending limiting rib for fixing the blocking claw in place is formed at the other end of the first avoiding opening.

[0023] Further, the filter device of the dishwasher further comprises a fan-shaped filter screen arranged in the inner container, and a mounting opening with an inward extending mounting edge is formed on the fan-shaped filter screen; the filter support frame has an assembly edge extending radially outward above the clamping edge, and the assembly edge is sealingly arranged above the mounting edge.

[0024] Further, the bottom of the inner container is provided with a concave water channel cavity, and a pump shell covers the water channel cavity, and a concave filter mounting groove matching the fan-shaped filter screen is formed on the pump shell, and a water passing hole is formed at the bottom of the filter mounting groove, and the fan-shaped filter screen is mounted in the filter mounting groove.

[0025] Further, a third avoiding opening is formed at the bottom of the filter mounting groove, and an avoiding edge is formed at the edge of the third avoiding opening, which is inwardly and downwardly inclined.

[0026] Further, a downward extending first limiting claw is arranged at the lower side of the assembly edge, and a downward extending supporting plate is arranged at the mounting opening, and a first limiting plate matching the first limiting claw and protruding inward is arranged on the supporting plate.

[0027] Further, a downward extending supporting edge is arranged at the bottom edge of the cup-shaped filter screen, and a water tank for accommodating the cup-shaped filter screen is arranged at the bottom of the inner container, and a concave annular groove is formed at the bottom of the water tank, and the supporting edge is located in the annular groove.

[0028] Further, the filter support frame has a support body, a mounting edge extending radially outward along the edge of the support body, and an annular cover frame arranged above the mounting edge, and a plurality of vertically arranged water flow inlets are arranged between the cover frame and the mounting edge.

[0029] Further, the cover frame has a downwardly and inwardly inclined inner end face.

[0030] Further, a plurality of support ribs are arranged between the cover frame and the mounting edge, and water flow inlets are arranged between adjacent two support ribs.

[0031] Further, a plurality of mounting handles extending outward at intervals are arranged on the cover frame.

[0032] Further, the filter comprises an upper cover, the upper cover is clamped on the cover frame, and a fourth clamping claw extending downward and clamped on the support body is arranged on the upper cover.

[0033] Further, the support body has a planar support bottom and a peripheral wall extending outward and upward along the edge of the support bottom, and the mounting edge is connected with the upper end of the peripheral wall.

[0034] Further, a water inlet is arranged on the support bottom, and the fourth clamping claw is clamped and fixed on the edge of the water inlet.

[0035] Further, the support bottom is circular, and the water inlet is an arc surface concentric with the support bottom.

[0036] Further, a limiting structure for clamping the upper cover is arranged between the upper cover and the support body.

[0037] Further, the limiting structure is a plurality of vertically arranged second limiting plates and a plurality of second limiting grooves, and the second limiting plates are located in the second limiting grooves.

[0038] Further, any two of the second limiting plates are perpendicular to each other, or parallel to each other, or coplanar.

[0039] Further, the plurality of second limiting plates form a cross shape or a T shape.

[0040] Based on the above-mentioned filter device of the dishwasher, the application further provides an assembly method of the filter device of the dishwasher, which has high stability and high positioning accuracy after being assembled and installed in the inner container.

[0041] An assembly method of a filter device of a dishwasher, comprising the following steps:

[0042] A, the filter 7 is placed from top to bottom in the water tank 305.

[0043] Rotate the filter support frame to engage the locking structure; while the filter support frame rotates, the cup-shaped filter screen remains stationary.

[0044] Based on the above-mentioned dishwasher filter device, the present invention also provides a dishwasher having the filter device, which has high stability and high positioning accuracy after being assembled and installed into the inner tank.

[0045] A dishwasher includes an inner tub and the aforementioned filter device mounted on the inner tub.

[0046] The dishwasher filtration device provided by the present invention provides a locking structure between the filter support frame and the bottom surface of the sink. This locking structure has a large installation space, allowing for a more robust structure and increasing its strength. This enhances the stability and security of the filter after installation. Furthermore, the locking structure, located between the bottom surface of the sink and the filter support frame, ensures the accuracy of the filter's position after installation, preventing large assembly gaps that could lead to food residue entering the water channel.

[0047] Other features and advantages of the present invention will become clearer after reading the detailed embodiments of the invention in conjunction with the accompanying drawings. Attached Figure Description

[0048] Figure 1 This is a schematic diagram of the structure of an embodiment of the filter device for a dishwasher proposed in this invention;

[0049] Figure 2 for Figure 1 A schematic diagram of the exploded structure;

[0050] Figure 3 for Figure 2 Enlarged structural diagram of the central region;

[0051] Figure 4 for Figure 3 Enlarged structural diagram of the central region;

[0052] Figure 5 for Figure 2 A magnified schematic diagram of the central sector-shaped filter element;

[0053] Figure 6 for Figure 1 A front view and a structural schematic diagram with a cross-section at the filter;

[0054] Figure 7 for Figure 6 Enlarged structural diagram at the mid-section view;

[0055] Figure 8 for Figure 7 Enlarged structural diagram of the central region;

[0056] Figure 9 is a structural schematic view of the filter; Figure 1

[0057] Figure 10 is a structural schematic view of the filter; Figure 9

[0058] Figure 11 is a structural schematic view of the filter;

[0059] Figure 12 is a structural schematic view of the filter; Figure 11

[0060] Figure 13 is a structural schematic view of the filter; Figure 11

[0061] Figure 14 is a structural schematic view of the filter; Figure 13

[0062] Figure 15 is a structural schematic view of the filter; Figure 14

[0063] Figure 16 is a structural schematic view of the filter; Figure 14

[0064] Figure 17 is a structural schematic view of the filter; Figure 13

[0065] Figure 18 is a structural schematic view of the filter; Figure 17

[0066] Figure 19 is a structural schematic view of the filter; Figure 17

[0067] Figure 20 is a structural schematic view of the filter; Figure 13

[0068] Figure 21 is a structural schematic view of the dishwasher;

[0069] Figure 22 is a structural schematic view of the filter; Figure 21

[0070] Figure 23 is a structural schematic view of the filter; Figure 22

[0071] Figure 24 is a structural schematic view of the filter;​​​​​​​​​​​​​Figure 22 Enlarged structural diagram of the middle B area;

[0072] Figure 25 For Figure 21 Enlarged structural diagram of the middle handle display plate;

[0073] Figure 26 For Figure 25 Structural diagram from another angle;

[0074] Figure 27 For Figure 26 Enlarged structural diagram of the middle part;

[0075] Figure 28 For Figure 27 Enlarged structural diagram of the middle display control plate box and the plugboard;

[0076] Figure 29 For Figure 28 Enlarged structural diagram of the middle plugboard;

[0077] Figure 30 For Figure 29 Structural diagram from another angle;

[0078] Figure 31 For Figure 30 Enlarged structural diagram of the middle D area;

[0079] Figure 32 For Figure 28 Enlarged structural diagram of the middle display control plate box;

[0080] Figure 33 For Figure 32 Structural diagram from another angle. DETAILED DESCRIPTION

[0081] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application.

[0082] In the description of the present application, it should be noted that the terms "inner", "upper", "lower", "left", "right" and the like indicate the positional or spatial relationship based on the positional relationship shown in the drawings, and the side close to the user is "front" and the side away from the user is "rear" in the normal use state of the dishwasher. The terms are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance; the features limited by "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.

[0083] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0084] In the description of the present application, it should be noted that the terms "inner", "upper", "lower", "left", "right" and the like indicate the positional or spatial relationship based on the positional relationship shown in the drawings, and the side close to the user is "front" and the side away from the user is "rear" in the normal use state of the dishwasher. The terms are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0085] Reference Figures 1-20, is an embodiment of the filter device of the dishwasher provided by the application, and the filter device of the dishwasher comprises a filter 7 for collecting residues, the filter 7 has a filter support frame 71 and a cup-shaped filter screen 72 arranged on the filter support frame 71; a concave water tank 305 is arranged on the inner container 30 of the dishwasher, and a locking structure is arranged between the bottom surface of the water tank 305 and the filter support frame 71. By arranging the locking structure between the filter support frame 71 and the bottom surface of the water tank 305, the locking structure has a larger arrangement space, a relatively firm structure can be arranged, the strength of the locking structure is increased, and the firmness and stability of the filter 7 after installation are improved; in addition, the locking structure is arranged between the bottom surface of the water tank 305 and the filter support frame 71, the locking structure is fixed in the up-down direction, the position accuracy of the filter 7 after installation can be ensured, and the problem that food residues enter the water channel due to a large assembly gap is avoided.

[0086] The dishwasher in the embodiment is a drawer dishwasher, and the inner container 30 is arranged in the drawer 20; as shown in Figure 13 , the filter 7 further has an upper cover 73 buckled on the filter support frame 71, and the filter 7 has the upper cover 73, the filter support frame 71 and the cup-shaped filter screen 72 arranged in sequence from top to bottom, the water flow mixed with food residues enters the cup-shaped filter screen 72 through the filter support frame 71, so that the food residues are filtered, and then the water flow enters the water channel of the dishwasher. The filter device of the dishwasher channel further comprises a fan-shaped filter screen 8 arranged in the inner container 30, as shown in Figure 5 , an installation opening 81 is arranged on the fan-shaped filter screen 8, and the lower part of the filter 7 is fixed on the inner container 30 through the installation opening 81. A downwardly inclined lower recess 811 is arranged on the installation opening 81, and an installation edge 812 extending inwardly along the lower end of the lower recess 811, the filter 7 is pressed against the installation edge 812, so that the sealing between the filter 7 and the filter 8 is ensured. The filter 7 needs to give a certain pressing force to the installation edge 812, so that the sealing between the filter 7 and the installation edge 812 is ensured, but the pressing force should also be avoided to be too large to cause the installation edge 812 to have a large deformation downwardly, so that the edge of the fan-shaped filter screen 8 is raised; in the embodiment, the locking structure is fixed in the up-down direction, which is beneficial to ensuring the assembly accuracy between the filter 7 and the installation edge 812, ensuring that the filter 7 gives the installation opening 81 with a suitable pressing force, being beneficial to ensuring the cleaning efficiency and avoiding the problem of blocking the water channel.

[0087] As shown in Figure 4 , Figure 8 , and Figure 14As shown, the locking structure comprises a plurality of first locking members 3051 protruding upwardly on the bottom surface of the water tank 305, and a plurality of second locking members 711 extending downwardly on the filter support frame 71, and the first locking members 3051 and the second locking members 711 are rotationally locked; since the cup-shaped filter screen 72 is located at the lower part of the filter support frame 71, a through hole 721 for the first locking members 3051 to extend into is formed on the bottom surface of the cup-shaped filter screen 72, and the through hole 721 is matched with the first locking members 3051. By controlling the size of the first locking members 3051 and the second locking members 711 in the up-down direction, the assembly accuracy between the filter 7 and the mounting edge 812 is ensured; by setting the first locking members 3051 and the second locking members 711 to be rotationally locked, the assembly efficiency is improved, and the first locking members 3051 and the second locking members 711 hardly deform during the clamping process, that is, the first locking members 3051 and the second locking members 711 do not need to deform by themselves to realize clamping and fixing during the rotation locking process; in this way, the assembly accuracy between the filter 7 and the mounting edge 812 is greatly improved, and the first locking members 3051 and the second locking members 711 can be set to have greater structural strength to ensure the firmness after assembly. When the filter 7 is installed to the inner container 30, the filter 7 is placed into the water tank 305 from top to bottom through the mounting port 81; the plurality of first locking members 3051 respectively extend into the cup-shaped filter screen 72 through the corresponding through holes 721, and then are rotationally locked.

[0088] Referring to Figure 4 As shown, the first locking member 3051 has a first supporting part 30511 extending upwardly along the bottom surface of the water tank 305, a first claw part 30512 extending horizontally along the top end of the first supporting part 30511, and a reinforcing part 30513 arranged outside the first supporting part 30511 and the first claw part 30512, the lower end of the reinforcing part 30513 is connected with the bottom surface of the water tank 305, and the reinforcing part 30513 is an arc surface. By setting the reinforcing part 30513, the structural strength of the first locking member 3051 is increased, and the guiding and limiting effect of the second locking member 711 during rotation locking is facilitated. There are three first locking members 3051 uniformly distributed on the bottom surface of the water tank 305, which is conducive to improving the stability and firmness of the locking of the first locking members 3051 and the second locking members 711.

[0089] Referring to Figure 14As shown, the second locking member 711 has a second support portion 7111 extending downward, and a second claw portion 7112 extending outward along the outer side of the second support portion 7111; the lower end surface of the first claw portion 30512 and the upper end surface of the second claw portion 7112 are matched and engaged, and the second support portion 7111 is an arc surface. The second claw portion 7112 is arranged on the outer side of the second support portion 7111, so that the arc surface length of the second support portion 7111 is larger, which is beneficial to increase the structural strength and increase the stress performance. In order to realize the rotation locking, the second claw portion 7112 is arranged to be inclined, and a second stop portion 7113 extending upward is arranged on the inclined rising end of the second claw portion 7112, which is used to limit the first locking member 3051 to be locked in place. The first support portion 30511 is used to limit the locking of the second locking member 711 in place. The lower end surface of the first claw portion 30512 is an inclined surface matched with the inclined direction of the second claw portion 7112,

[0090] Referring to Figure 17 and Figure 18 As shown, in order to increase the structural strength at the via hole 721 and increase the cooperation between the first locking member 3051 and the via hole 721, an extension portion 7211 extending upward is arranged at the via hole 721, and an avoidance groove 7212 through which the second claw portion 7112 passes is arranged on the extension portion 7211. By arranging the extension portion 7211, the cooperation area between the via hole 721 and the first locking member 3051 is increased, which is beneficial to improve the stability after assembly; and the avoidance groove 7212 is arranged, so that the first claw portion 30512 of the first locking member 3051 can pass through and be screwed on the second locking member 711.

[0091] Referring to Figure 10 and Figure 18As shown, the first locking member 3051 matches the through hole 721, when the first locking member 3051 and the second locking member 711 are locked in rotation, the cup-shaped filter screen 72 should be static relative to the first locking member 3051, that is, the filter support frame 71 rotates, so that the first locking member 3051 and the second locking member 711 are locked in rotation, and the cup-shaped filter screen 72 has a relative rotation relationship with the filter support frame 71. After the filter 7 is placed in the water tank 305, the first locking member 3051 extends into the cup-shaped filter screen 72 through the through hole 721; when the filter support frame 71 is rotated and installed, the first locking member 3051 provides support force to the through hole 721, so that the cup-shaped filter screen 72 and the filter support frame 71 are relatively rotated. In order to further increase the positioning of the cup-shaped filter screen 72, avoid the force of relative rotation between the first locking member 3051 and the through hole 721 causing structural deformation, and causing the assembly precision between the filter 7 and the installation side 812 to decrease. Preferably, the first locking member 3051 and the through hole 721 are provided with positioning, a limiting block 306 for stopping the rotation of the cup-shaped filter screen 72 is arranged in the water tank 305, a limiting portion 722 matched with the limiting block 306 is arranged on the cup-shaped filter screen 72, and the limiting block 306 extends into the limiting portion 722; by arranging the limiting block 306 and the limiting portion 722, the rotation firmness between the cup-shaped filter screen 72 and the water tank 305 is increased.

[0092] Referring to Figure 19As shown, the limiting portion 722 has a first limiting opening 7221 formed in the bottom surface of the cup-shaped filter screen 72, and a second limiting opening 7222 formed in the side surface of the cup-shaped filter screen 72, the first limiting opening 7221 and the second limiting opening 7222 are communicated, and the width of the first limiting opening 7221 is greater than the width of the second limiting opening 7222; which is conducive to the positioning of the cup-shaped filter screen 72 in the circumferential direction, and is conducive to ensuring the positioning of the cup-shaped filter screen 72 in the radial direction, and increasing the firmness of the cup-shaped filter screen 72. The limiting block 306 has a limiting body matched with the second limiting opening 7222, and an extended clamping edge provided on the end of the limiting body close to the axis of the filter 7, wherein the limiting body is located in the second limiting opening 7222, the clamping edge extends into the cup-shaped filter screen 72 from the first limiting opening 7221, and the clamping edge is blocked on the inner side of the second limiting opening 7222. The cup-shaped filter screen 72 moves from top to bottom, so that the limiting portion 722 is buckled on the limiting block 306; which limits the movement of the cup-shaped filter screen 72 in the circumferential direction and the radial direction, or in other words, limits the forward rotation, reverse rotation and movement in the radial direction of the cup-shaped filter screen 72; which is conducive to increasing the firmness. A baffle 725 extending radially upward is arranged on the bottom surface of the cup-shaped filter screen 72, the baffle 725 is located on the inner side of the first limiting opening 7221, and is used to block the limiting block 306; when the limiting block 306 and the limiting portion 722 are installed in cooperation, the baffle 725 plays a limiting guiding role, and after installation, it is conducive to limiting the movement trend of the limiting block 306 and the limiting portion 722 in the direction of approaching each other.

[0093] When the filter 7 is installed on the inner container 30 of the dishwasher, the cup-shaped filter screen 72 is stationary relative to the inner container 30, and the filter support frame 71 is rotationally fixed with the inner container 30. By arranging the cup-shaped filter screen 72 to be rotationally fixed to the filter support frame 71, it is conducive to improving the assembly speed when the filter 7 is assembled, and by rotationally fixing, it is conducive to improving the stability after fixing; by arranging the filter support frame 71 and the inner container 30 to be rotationally locked, it is conducive to improving the assembly precision, assembly efficiency between the filter 7 and the inner container 30, and the structural strength of the locking structure between the filter support frame 71 and the inner container 30, and ensuring the firmness after assembly.

[0094] The rotation fixing direction of the cup-shaped filter screen 72 is opposite to the rotation fixing direction of the filter support frame 71. The rotation angle of the cup-shaped filter screen 72 when being rotation fixed is less than the rotation angle of the filter support frame 71 when being installed and fixed. In this way, the cup-shaped filter screen 72 is rotation fixed to the filter support frame 71 in the positive direction, and the filter support frame 71 is rotation locked in the reverse direction when the filter 7 is rotation locked to the inner container 30. At this time, the cup-shaped filter screen 72 is static relative to the inner container 30, and the cup-shaped filter screen 72 is rotation in the reverse direction relative to the filter support frame 71. The cup-shaped filter screen 72 and the filter support frame 71 are installed and fixed in such a way that the positive rotation angle is less than the reverse rotation angle when the filter 7 is rotation locked. In this way, the cup-shaped filter screen 72 is rotation in the dismounting direction through the reverse rotation when the filter 7 is rotation locked. The rotation angle of the cup-shaped filter screen 72 when being rotation fixed is less than the rotation angle of the filter support frame 71 when being installed and fixed. In this way, the cup-shaped filter screen 72 is still fixed to the filter support frame 71 after the filter screen 7 is fixed to the inner container 30, which is beneficial to increase the stability of the filter 7 after being fixed.

[0095] Referring to Figure 16 and Figure 17 As shown in the drawings, for the rotation fixing between the cup-shaped filter screen 72 and the filter support frame 71, the cup-shaped filter screen 72 is provided with a blocking claw 724. The blocking claw 724 has an inwardly protruding blocking rod 7241 arranged along the sidewall of the cup-shaped filter screen 72, and a blocking protrusion 7242 arranged at the upper end of the blocking rod 7241 and extending inwardly. The filter support frame 71 is provided with a radially extending clamping edge 712 located on the inner side of the cup-shaped filter screen 72. The clamping edge 712 is provided with an arc-shaped first avoiding opening 7121 matched with the blocking rod 7241, and a second avoiding opening 7122 matched with the blocking protrusion 7242 arranged at one end of the first avoiding opening 7121. The clamping edge 712 includes a clamping edge body 7120, and the first avoiding opening 7121 and the second avoiding opening 7122 arranged on the clamping edge body 7120. Through the arrangement of the first avoiding opening 7121 and the second avoiding opening 7122, especially the second avoiding opening 7122, when the cup-shaped filter screen 72 is assembled to the filter support frame 71, the cup-shaped filter screen 72 is close to the filter support frame 71 so that the blocking protrusion 7242 is located in the second avoiding opening 7122, and at this time, the blocking rod 7241 is located in the first avoiding opening 7121, thereby realizing the positioning of the cup-shaped filter screen 72. Then, through rotation, the blocking rod 7241 is rotated along the first avoiding opening 7121, and the blocking protrusion 7242 is blocked on the upper side of the clamping edge 712, so that the blocking claw 724 does not need to be deformed during the rotation fixing process, which is beneficial to arrange the blocking claw 724 with greater structural strength, and is beneficial to improve the stability and firmness of the cup-shaped filter screen 72 and the filter support frame 71 after being fixed. Preferably, an upward extending limiting rib 7123 is arranged at the other end of the first avoiding opening 7121, and the limiting rib 7123 is used for installing and fixing the blocking claw 724 in place. When the blocking claw 724 is rotated to the limiting rib 7123, the cup-shaped filter screen 72 is installed in place.

[0096] Referring to Figure 5 and Figure 10 As shown in the figure, the filter device of the dishwasher further comprises a fan-shaped filter screen 8 arranged in the inner container 30, and a mounting opening 81 is formed on the fan-shaped filter screen 8, and the lower part of the filter 7 is fixed on the inner container 30 through the mounting opening 81. A downwardly inclined lower recess 811 is arranged at the mounting opening 81, and a mounting edge 812 extending inwardly is arranged at the lower end of the lower recess 811, and the filter 7 is pressed against the mounting edge 812 to ensure the sealing between the filter 7 and the filter 8. The filter support frame 71 has a radially outwardly extending assembly edge 713, which is arranged above the clamping edge 712 at intervals, and the assembly edge 713 is sealingly arranged above the mounting edge 812. By arranging the lower recess 811, after the assembly edge 713 cooperates with the mounting edge 812, the upper surface of the assembly edge 713 is lower than the upper surface of the fan-shaped filter screen 8 at the mounting opening 81, which is beneficial to the water flow entering the filter 7. After the filter 7 is installed on the inner container 30, the assembly edge 713 gives the mounting edge 812 a certain pressing force to ensure the sealing between the filter 7 and the mounting edge 812, but also to avoid excessive pressing force causing the mounting edge 812 to have a large downward deformation, which causes the edge of the fan-shaped filter screen 8 to be raised. Part of the water flow passes through the fan-shaped filter screen 8 into the water channel, and part of the water flow passes through the filter 7 into the water channel; the upper surface of the fan-shaped filter screen 8 is slightly inclined to the mounting opening 81, so that the food residues remaining on the fan-shaped filter screen 8 can enter the filter 7 with the water flow under the impact of the water flow. It is preferred that the filtering precision of the fan-shaped filter screen 8 is greater than that of the cup-shaped filter screen 72, which is beneficial to more water flow flowing to the filter 7, so that food residues are not retained on the fan-shaped filter screen 8.

[0097] Referring to Figure 3 and Figure 4 As shown in the figure, in order to form support for the fan-shaped filter screen 8, a concave water channel cavity is arranged at the bottom of the inner container 30, a pump shell 307 covers the water channel cavity, a concave filter mounting groove 3071 matched with the fan-shaped filter screen 8 is arranged on the pump shell 307, a water passing hole is formed at the bottom of the filter mounting groove 3071, and the fan-shaped filter screen 8 is installed in the filter mounting groove 3071. By arranging the filter mounting groove 3071, effective support for the fan-shaped filter screen 8 is formed, which effectively avoids the upward lifting of the edge of the fan-shaped filter screen 8, and is beneficial to improving the filtering efficiency. A third avoiding opening 30711 is formed at the bottom of the filter mounting groove 3071, and an avoiding edge 30712 inclined inwardly and downwardly is arranged at the edge of the third avoiding opening 30711. By arranging the inclined avoiding edge 30712, the assembly edge 713 gives the mounting edge 812 a certain pressing force to ensure the sealing between the filter 7 and the mounting edge 812.

[0098] A first limiting claw 714 extending downward is arranged at the lower side of the assembly along 713, a supporting plate 814 extending downward is arranged at the installation opening 81, a first limiting plate 815 matching the first limiting claw 714 is arranged on the supporting plate 814, and the first limiting plate 815 protrudes inward. A supporting edge 723 extending downward is arranged at the bottom edge of the cup-shaped filter screen 72, a water tank 305 for accommodating the cup-shaped filter screen 72 is arranged at the bottom of the inner container 30, an annular groove 3052 recessed inward is formed at the bottom of the water tank 305, and the supporting edge 723 is located in the annular groove 3052. By arranging the supporting edge 723 and the annular groove 3052, the structural strength of the cup-shaped filter screen 72 can be increased, and the positioning and fixing of the cup-shaped filter screen 72 are facilitated.

[0099] Referring to Figures 14-16 As shown in the figure, the filter support frame 71 has a supporting body 710, an assembly along 713 extending radially outward along the edge of the supporting body 710, and an annular cover frame 715 arranged above the assembly along 713, and a plurality of vertically arranged water flow inlets 716 are arranged between the cover frame 715 and the assembly along 713. By arranging the vertically arranged water flow inlets 716, the water flow inlets 716 of the filter cannot be seen from the upper side, that is, the effect of hiding is achieved, the collected food residues are prevented from being exposed, the appearance is improved, the cleaning effect is improved, a larger space for structural arrangement is provided, and the structural strength of the filter 7 is improved. The filter 7 has a reasonable structure, high strength, and vertically arranged water flow inlets, which facilitates the improvement of cleaning efficiency.

[0100] Referring to Figures 11-14 As shown in the figure, the filter 7 includes an upper cover 73, the upper cover 73 is buckled on the cover frame 715, the cover frame 715 has an inner end surface inclined downward and inward, and the edge of the upper cover 73 contacts the inner end surface of the cover frame 715. By arranging the upper cover 73, the structural arrangement of the cover frame 715 is facilitated, and by arranging the edge of the upper cover 73 to contact the inner end surface of the cover frame 715, the tightness of the buckling of the upper cover 73 is ensured. A plurality of supporting ribs 717 are arranged between the cover frame 715 and the assembly along 713, and the water flow inlets 716 are arranged between adjacent two supporting ribs 717. A plurality of assembly handles 718 extending outward at intervals are arranged on the cover frame 715; by applying torque to the assembly handles 718, the rotation of the filter support frame 71 is realized, and the operation of applying torque to install the filter 7 to the inner container 30 is simple and convenient.

[0101] Referring to Figure 16 and Figure 20As shown, the upper cover 73 is provided with a fourth clamping jaw 731 extending downward, which is clamped on the support body 710. By arranging the fourth clamping jaw 731 extending downward, the upper cover 73 is clamped and fixed on the support body 710, which is beneficial to the stability after fixing and the simple clamping operation, and is beneficial to improving the efficiency. The support body 710 is in a basin shape, that is, has a flat support bottom 7101 and a peripheral wall 7102 extending outward and upward along the edge of the support bottom 7101, and the assembly flange 713 is connected with the upper end of the peripheral wall 7102. By arranging the basin-shaped support body 710, the water flow entering the support body 710 through the water inlet 716 flows to the support bottom 7101, which is beneficial to increasing the water flow speed and avoiding water residue in the support body 710. The water inlet 7103 is arranged on the support bottom 7101, and the fourth clamping jaw 731 is clamped and fixed on the edge of the water inlet 7103. In this way, a clamping hole structure matched with the fourth clamping jaw 731 does not need to be specially arranged, and the fourth clamping jaw 731 is directly clamped on the edge of the water inlet 7103. The support bottom 7101 is circular, and the water inlet 7103 is an arc surface concentric with the support bottom 7101. The central angle corresponding to the water inlet 7103 is less than 90°.

[0102] Referring to Figure 14 and Figure 20 As shown, a limiting structure is arranged between the upper cover 73 and the support body 71 for clamping the upper cover 73, so as to ensure the stability and firmness of the upper cover 73 after fixing. The limiting structure is a plurality of second limiting plates 719 arranged vertically upward on the support bottom 7101 of the support body 71 and a plurality of second limiting grooves 732 arranged vertically downward on the upper cover 73, and the second limiting plates 719 are located in the second limiting grooves 732. It is preferred that any two second limiting plates 719 are perpendicular to each other, or parallel to each other, or coplanar. Specifically, the plurality of second limiting plates 719 form a cross shape or a T shape, and the intersection line of the plurality of second limiting plates 719 is collinear with the axis of the filter support frame 71. Through the cooperation of the second limiting plates 719 and the second limiting grooves 732, the positional relationship between the upper cover 73 and the filter support frame 71 is limited, the fourth clamping jaw 731 is clamped and fixed on the edge of the water inlet 7103, and the stability of the upper cover 73 after fixing is high.

[0103] The assembly method of the filter device of the dish washing machine comprises the following steps:

[0104] A0, the cup-shaped filter screen 72 is fixed on the filter support frame 71 in a forward rotation manner.

[0105] Specifically, the cup-shaped filter screen 72 is placed close to the filter support frame 71 so that the blocking protrusion 7242 is located in the second avoiding opening 7122, and at this time the blocking rod 7241 is located in the first avoiding opening 7121, thereby realizing the positioning of the cup-shaped filter screen 72; then the blocking rod 7241 is rotated along the first avoiding opening 7121 by rotating, and the blocking protrusion 7242 is blocked at the upper side of the clamping edge 712; during the rotation and fixing process, the blocking claw 724 does not need to be deformed to be clamped, which is beneficial to setting the blocking claw 724 to have relatively large structural strength, and is beneficial to improving the stability and firmness of the cup-shaped filter screen 72 after being fixed to the filter support frame 71.

[0106] , the filter 7 is placed into the water tank 305 from top to bottom.

[0107] Specifically, the cup-shaped filter screen 72 and the filter support frame 71 assembled in step A0 are placed into the water tank 305, so that the first locking part 3051 extends into the cup-shaped filter screen 72 through the through hole 721, and at the same time the limiting block 306 is located at the limiting part 722, thereby realizing the positioning of the cup-shaped filter screen 72. At this time, the limiting block 306 is located at the limiting part 722, thereby realizing the positioning of the cup-shaped filter screen 72, and the assembly edge 713 of the filter support frame 71 is located above the mounting edge 812.

[0108] , the filter support frame 71 is rotated so that the locking structure is clamped; during the rotation of the filter support frame 71, the cup-shaped filter screen 72 is static.

[0109] By reversely rotating the filter support frame 71, the second locking part 711 on the filter support frame 71 is rotationally locked with the first locking part 3051 at the bottom of the water tank 305, thereby realizing the locking of the filter support frame 71; at the same time, the cup-shaped filter screen 72 is limited between the filter support frame 71 and the bottom of the water tank 305. During the rotation of the filter support frame 71, the cup-shaped filter screen 72 is blocked and kept in a static state by the limiting block 306, which makes the cup-shaped filter screen 72 have relative rotation movement with the filter support frame 71, and the rotation angle of the cup-shaped filter screen 72 during the rotation and fixing is smaller than the rotation angle of the filter support frame 71 during the installation and fixing; after the filter screen 7 is fixed to the inner container 30, the cup-shaped filter screen 72 is also fixed on the filter support frame 71, which is beneficial to increasing the stability of the filter 7 after being fixed.

[0110] , the upper cover 73 is clamped on the filter support frame 71.

[0111] Specifically, the upper cover 713 is moved close to the cover frame 715 from top to bottom, so that the second limiting plate 719 is located in the second limiting groove 732, and the fourth clamping claw 731 is clamped and fixed at the edge of the water inlet 7103 by continuing to press downward, thereby realizing the clamping and fixing of the upper cover 73.

[0112] Referring to Figure 21As shown, the drawer 20 is pullable in the cabinet 10, and a handle display plate 1 is arranged at the front end of the drawer 20. The handle display plate 1 is arranged at the upper end of the door plate assembly 2, and the handle display plate 1 and the door plate assembly 2 constitute the front end face of the dishwasher. In order to avoid water droplets from seeping through the gap between the handle display plate 1 and the door plate assembly 2, the upper end of the door plate 21 is provided with a bent and upwardly extending overlapping portion 217, which is located inside the outer wall of the handle display plate 1. In this way, even if water droplets reach between the handle display plate 1 and the door plate assembly 2, they will be stopped at the overlapping portion 217. At the same time, the assembly gap between the handle display plate 1 and the door plate assembly 2 is avoided from being too large, thereby ensuring the product quality of the dishwasher. The handle display plate 1 is slidably arranged on the drawer 20. In this way, when the handle display plate 1 needs to be repaired or replaced, the handle display plate 1 can be disassembled, which is beneficial to ensure the operation space and improve the operation efficiency. Furthermore, through the sliding arrangement of the handle display plate 1 on the dishwasher, the fixing firmness of the handle display plate 1 and the disassembly efficiency are improved.

[0113] In the embodiment, referring to Figures 22-27 As shown, a first limiting structure and a second limiting structure for sliding assembly are arranged between the handle display plate 1 and the drawer 20. The first limiting structure is a limiting guide groove 111 arranged on the handle display plate 1 and a limiting guide plate 201 arranged on the drawer 20. The limiting guide plate 201 is matched with the limiting guide groove 111, and the limiting guide plate 201 is located in the limiting guide groove 111. Through the arrangement of the limiting guide plate 201 and the limiting guide groove 111, the sliding assembly of the handle display plate 1 is facilitated. Through the sliding assembly, the contact matching area of the limiting guide plate 201 and the limiting guide groove 111 is large, which is beneficial to increase the fixing firmness. The limiting guide plate 201 and the limiting guide groove 111 also play a positioning role during assembly and at least limit the forward and backward movement of the handle display plate 1. The second limiting structure is a limiting claw 112 arranged on the handle display plate 1 and a second limiting groove 202 arranged on the drawer 20. The second limiting groove 202 is matched with the limiting claw 112, and the limiting claw 112 is clamped in the second limiting groove 202. At least the upward, downward and rightward movement of the handle display plate 1 is limited. Therefore, the first limiting structure and the second limiting structure cooperate to fix the handle display plate 1.

[0114] In the embodiment, referring to Figure 27 As shown, an L-shaped guide groove plate protruding rearward is arranged on the handle display plate 1, and a limiting guide groove 111 downwardly opening is formed between the guide groove plate and the handle display plate 1. An upwardly extending limiting guide plate 201 is arranged at the front end top of the drawer 20, and the length of the limiting guide plate 201 is the same as the size of the drawer 20 in the left-right direction. The left-right length limiting guide plate 201 is beneficial to increase the structural strength of the limiting guide plate 201. The first limiting structure can limit the freedom degree of the handle display plate 1 in the forward and backward direction and the downward direction.

[0115] In the embodiment, the drawer 20 is provided with an installation avoiding groove 203 for installing the handle display plate 1, and the installation avoiding groove 203 is connected with the second limiting groove 202; when installing the handle display plate 1, first, the limiting claw 112 is inserted into the installation avoiding groove 203, and then the handle display plate 1 is lifted upward, so that the limiting guide groove 111 installs the limiting guide plate 201 from above; then, the handle display plate 1 is pushed along the direction of the limiting guide plate 201 and the limiting guide groove 111, so that the limiting claw 112 slides into the second limiting groove 202 from the installation avoiding groove 203. The installation avoiding groove 203 is provided to ensure the cooperation of the first limiting structure and the second limiting structure.

[0116] The third limiting structure is provided between the handle display plate 1 and the drawer 20 of the dishwasher, wherein the third limiting structure is a third clamping groove 119 provided on the handle display plate 1 and a third clamping plate 204 provided on the drawer 20 of the dishwasher, and the third clamping plate 204 is clamped and fixed in the third clamping groove 119. One end of the third clamping plate 204 is provided with a third stop plate 209 for limiting the installation of the third clamping groove 119, the third clamping plate 204 is vertically arranged left and right, and the third stop plate 209 is vertically arranged in the front and back direction; when installing the handle display plate 1, the control panel is slidably assembled by pushing it to the right, so that the third clamping groove 119 moves to the right, and after the third clamping groove 119 contacts the third stop plate 209, the control panel is installed in place; and the clamping and fixing can be achieved by setting the groove width of the third clamping groove 119 and the thickness of the third clamping plate 204. The third clamping plate 204 and the third clamping groove 119 are provided to facilitate the fixation of the handle display plate 1; and the opening direction of the third clamping groove 119 is opposite to the opening direction of the limiting guide groove 111, which increases the stability and firmness after fixation. The third clamping groove 119 is provided on the panel body 1 and extends backward and opens upward; preferably, two third positioning grooves are provided on the handle display plate 1.

[0117] Referring to Figure 27As shown, the handle display plate 1 is provided with a display control panel box 14 for accommodating the display control panel, and the handle display plate 1 is provided with an assembly cavity, and the control panel assembly 1 further comprises an insertion plate 15 for pressing and fixing the display control panel box 14, wherein the insertion plate 15 is slidably inserted into the assembly cavity. By arranging the insertion plate 15, the insertion plate 15 is slidably inserted into the assembly cavity, and when the insertion plate 15 is slid into place, the insertion plate 15 is pressed and fixed between the display control panel box 14 and the wall surface of the assembly cavity, that is, the display control panel box is also pressed and fixed; thus, the assembly efficiency of the control panel assembly is improved, the display control panel box 14 is convenient to disassemble, and the contact area between the display control panel box 14, the insertion plate 15 and the assembly cavity is increased, which is beneficial to improve the stability and firmness of the fixation. The upper end surface of the handle display plate 1 is a forward and downward inclined surface, which is beneficial to the forward flow of water dropped on the upper end surface of the handle display plate 1, and the front end surface of the panel body 1 flows downward, avoiding the water flowing backward into the assembly gap between the panel body and the drawer 20.

[0118] In the embodiment, the assembly cavity is a downwardly open cavity, and the assembly cavity is provided with guide limiting plates 115 matched with the display control panel box 14 on the left and right sides of the assembly cavity; the display control panel box 14 is provided with an extension limiting plate 1411 extending leftward and rightward on the front end surface thereof, and the extension limiting plate 1411 is matched with the guide limiting plates 115; the width of the display control panel box 14 is matched with the distance between the two guide limiting plates 115, that is, the width of the display control panel box 14 is equal to or slightly smaller than the distance between the two guide limiting plates 115; in this way, the top surface of the display control panel box 14 abuts against the top surface of the assembly cavity, and the display control panel box 14 is limited in the leftward and rightward directions between the two guide limiting plates 115.

[0119] In the embodiment, the display control elements on the display control panel extend from the front end surface of the display control panel box 14, and the assembly cavity is provided with a mounting portion matched with the display control panel on the front wall thereof, and a display screen 116 arranged in front of the mounting portion. In order to position the display control panel box 14 during installation and to improve the stability after fixation, a first positioning structure is arranged between the front end surface of the display control panel box 14 and the front wall surface of the assembly cavity; specifically, the first positioning structure comprises a positioning cylinder arranged on the front end surface of the display control panel box 14 and protruding forward, and a positioning hole arranged on the mounting portion of the front wall surface of the assembly cavity.

[0120] Referring to Figures 28-33As shown, a guide rail and guide groove structure is arranged between the display control board box 14 and the plug-in board 15 for positioning and guiding the plug-in board 15. Specifically, a guide rail 1421 in the sliding assembly direction of the plug-in board 15, i.e. the up-down direction, is arranged on the rear end surface of the display control board box 14, and a concave guide groove 151 matching the guide rail 1421 is arranged on the front end surface of the plug-in board 15. The plug-in board 15 is slidably inserted between the display control board box 15 and the rear wall surface of the assembly cavity, and after the plug-in board 15 is slid into position, the plug-in board 15 is clamped between the display control board box 14 and the wall surface of the assembly cavity in the front-rear direction.

[0121] In this embodiment, a fifth clamping buckle 1422 protruding towards the plug-in board 15 is arranged on the display control board box 14, and a fifth clamping claw 152 matching the fifth clamping buckle 1422 is arranged on the plug-in board 15. After the plug-in board 15 is slid into position, the fifth clamping claw 152 is clamped and fixed on the fifth clamping buckle 1422. The fifth clamping claw 152 is arranged on the lower part of the front end surface of the plug-in board 15, and extends downward to form a handle protrusion 153 extending out of the plug-in board, which is used for manually releasing the locking relationship between the fifth clamping claw 152 and the fifth clamping buckle 1422. That is, when the plug-in board 15 is removed, the handle protrusion 153 is bent backwards, and the plug-in board 15 is pulled downwards, so that the fifth clamping claw 152 is disengaged from the fifth clamping buckle 1422. Since the fifth clamping buckle 1422 protrudes from the rear end surface of the display control board box 14, a clamping buckle avoiding groove 154 is arranged on the plug-in board 15 for avoiding the fifth clamping buckle 1422, and the clamping buckle avoiding groove 154 extends in the assembly direction of the plug-in board 15, or in other words, the clamping buckle avoiding groove 154 is arranged in the up-down direction. During the sliding assembly of the display control board box 14, the fifth clamping buckle 1422 slides in the clamping buckle avoiding groove 154, so that the clamping buckle avoiding groove 154 also plays a certain guiding and limiting role with the fifth clamping buckle 1422. The fifth clamping buckle 1422 is arranged in the clamping buckle avoiding groove 154.

[0122] In this embodiment, the vertical section of the plug-in board 14 in its assembly direction is trapezoidal, i.e. the vertical section of the plug-in board 14 in the up-down direction is narrow at the top and wide at the bottom, which is beneficial to pressing the display control board box 14 against the wall surface of the assembly cavity in the front-rear direction, i.e. the front-rear wall surface of the assembly cavity is pressed against the display control board box 14 and the plug-in board 15 in the front-rear direction, and is beneficial to increasing the firmness of the fixation between the display control board box 14 and the plug-in board 15. A handle 155 extending downward for pulling out the plug-in board 15 is arranged on the lower end of the plug-in board 15.

[0123] In the embodiment, the display control board box 14 includes a snap-fitted upper cover 141 and a cover bottom 142, and a plurality of snap-fixing structures are arranged between the upper cover 141 and the cover bottom 142. The snap-fixing structures are fixed snap plates 1425 extending along the end face of the frame-shaped cover body on the cover bottom 142 in the snap direction and fixed snap grooves 1415 arranged in the end face of the frame-shaped cover body of the upper cover 141. The fixed snap grooves 1415 are matched with the fixed snap plates 1425. After the display control board box 14 is snap-fitted and assembled, the positioning snap plates 1425 are located in the fixed snap grooves 1415. By arranging the snap-fixing structures as the fixed snap plates 1425 extending along the end face and the fixed snap grooves 1415 recessed inward, the fixed snap plates 1425 are located in the fixed snap grooves 1415 after the upper cover 141 and the cover bottom 142 are assembled and fixed, so that the snap-fixing structures do not protrude outward of the box body. In this way, the display control board box 14 is prevented from being touched during operation, and the stability of the display control board box 14 after snap-fitted and assembled is improved. In addition, the structure of the display control board box 14 installation position on the panel body 11 is facilitated to be arranged, and the protruding snap-fixing structures need not be considered to be avoided, so that the structure of the panel body 11 is facilitated to be simple.

[0124] In the embodiment, when the upper cover 141 and the cover bottom 142 are snap-fitted and assembled, the fixed snap plates 1425 slide in the fixed snap grooves 1415, and play a certain limiting and guiding role, so as to improve the efficiency of snap-fitted and assembled of the upper cover 141 and the cover bottom 142 and improve the assembly accuracy. The fixed snap plates 1425 are provided with fixed snap holes 14251 matched with fixed snap claws 14151 arranged in the fixed snap grooves 1415. After the display control board box 14 is snap-fitted and assembled, the fixed snap claws 14151 are snap-fitted and fixed in the fixed snap holes 14251. In this way, the fixed snap plates 1425 play a limiting and guiding role and a snap-fixing role at the same time when located in the fixed snap grooves 1415, and the snap-fixing structures are prevented from protruding outward of the end face of the control board box 14.

[0125] In the embodiment, a boss is formed on the inner side of the fixing clamping groove 1415 of the upper cover 141, and a positioning sliding groove 1426 for slidingly covering the boss is arranged on the cover bottom 142; the positioning sliding groove 1426 is located on the inner side of the fixing clamping plate 1425, and the positioning sliding groove 1426 and the fixing clamping plate 1425 are preferably arranged in cooperation. The boss and the positioning sliding groove 1426 play the role of accurate positioning, and during the sliding assembly of the upper cover 141 and the cover bottom 142, the boss slides in the positioning sliding groove 1426, plays the role of guiding, and shows the cooperation accuracy after the assembly of the control panel box 14, which is beneficial to improve the sealing performance; by arranging the clamping and fixing structure, the freedom in the front-rear, up-down, left-right and other directions is limited, which is beneficial to the firmness after the assembly and fixing. In order to further increase the sealing performance, a matching annular sealing convex and an annular sealing groove are arranged on the assembly surfaces of the upper cover 141 and the cover bottom 142 respectively, and the sealing convex is located in the sealing groove.

[0126] In the embodiment, the fixing clamping plate 1425 is arranged on the upper and lower end surfaces of the frame-shaped cover body of the cover bottom 142, and the sliding plate 1427 extending towards the upper cover 141 is arranged on the side surface of the cover bottom 142, and the sliding plate 1427 is slidingly assembled on the outer side of the side surface of the upper cover 141. The extension limiting plate 1411 extending leftward and rightward is arranged on the front end surface of the upper cover 141, and the stop rib 1417 for stopping the end portion of the sliding plate 1427 is arranged on the end portion of the limiting plate 1411. By arranging the sliding plate 1427, the limiting in the left-right direction during the assembly is facilitated, and by arranging the extension limiting plate 1411, the sliding plate 1427 is stopped on the extension limiting plate 1411 after the installation, so that the sliding plate 1427 does not protrude outward of the control panel box; and by arranging the stop rib 1417, the limiting for the sliding plate 1427 is increased, and the firmness after the assembly of the control panel box 14 is increased.

[0127] In the embodiment, the plurality of support columns 1428 extending towards the upper cover 141 are arranged on the cover bottom 142, and the control panel is located between the support columns 1428 and the upper cover 141. By arranging the support columns 1428, the support for the control panel is ensured, and the space for the protrusion is left for the connection between the circuits on the rear end surface of the control panel, which is beneficial to the connection between the circuits on the rear end surface of the control panel; and is beneficial to increase the buffering effect for the control panel.

[0128] The above description is only a preferred embodiment of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above-mentioned technical content to equivalent embodiments. However, any simple modification, equivalent change and modification made on the basis of the technical essence of the present application to the above-mentioned embodiments still belongs to the protection scope of the technical solution of the present application.

Claims

1. A filter device of a dishwasher comprising a filter for collecting residues, characterized in that, The filter has a filter support frame and a cup-shaped filter screen arranged on the filter support frame; a concave sink is arranged on the inner container of the dishwasher, and a locking structure is arranged between the bottom surface of the sink and the filter support frame; A handle display plate is arranged at the front end of the drawer of the dishwasher, and a first limiting structure and a second limiting structure for sliding assembly are arranged between the handle display plate and the drawer; the first limiting structure is a limiting guide groove arranged on the handle display plate and a limiting guide plate arranged on the drawer; the second limiting structure is a limiting claw arranged on the handle display plate and a second limiting notch arranged on the drawer; An installation avoiding slot for the installation of the handle display plate is arranged on the drawer, and the installation avoiding slot is connected with the second limiting notch; when the handle display plate is installed, the limiting claw is first inserted into the installation avoiding slot, and then the handle display plate is lifted upwards, so that the limiting guide groove loads the limiting guide plate from above; then, the handle display plate is pushed along the direction of the limiting guide plate and the limiting guide groove, so that the limiting claw is slid into the second limiting notch from the installation avoiding slot.

2. The filter device of claim 1, wherein, The locking structure comprises a plurality of first locking members protruding upwards on the bottom surface of the sink, and a plurality of second locking members extending downwards on the filter support frame, the first locking members and the second locking members are rotationally locked; a through hole for the first locking members to extend into is arranged on the bottom surface of the cup-shaped filter screen.

3. The filter device of claim 2, wherein, The first locking member has a first supporting portion extending upwards along the bottom surface of the sink, a first claw portion extending horizontally along the top end of the first supporting portion, and a reinforcing portion arranged outside the first supporting portion and the first claw portion.

4. The filter device of claim 3, wherein, The second locking member has a second supporting portion extending downwards, and a second claw portion extending outwards along the outside of the second supporting portion; the lower end surface of the first claw portion and the upper end surface of the second claw portion are matched and engaged.

5. The filter device according to any one of claims 1 to 4, characterized in that A limiting block for stopping the rotation of the cup-shaped filter screen is arranged in the sink, and a limiting portion matched with the limiting block is arranged on the cup-shaped filter screen.

6. The filter device of claim 5, wherein, The limiting portion has a first limiting opening arranged on the bottom surface of the cup-shaped filter screen, and a second limiting opening arranged on the side surface of the cup-shaped filter screen, the first limiting opening and the second limiting opening are communicated, and the width of the first limiting opening is greater than the width of the second limiting opening.

7. The filter device of claim 6, wherein, The limiting block has a limiting body matched with the second limiting opening, and a clamping edge extending along the end portion of the limiting body close to the filter axis, and the clamping edge is stopped on the inner side of the second limiting opening.

8. The filter device of claim 6, wherein, A baffle extending radially upwards is arranged on the bottom surface of the cup-shaped filter screen, and the baffle is located on the inner side of the first limiting opening, and is used for stopping and positioning the limiting block.

9. A method of assembling a filter device according to any one of claims 1 to 8, characterised in that, The method comprises the following steps: A. placing the filter into the sink from top to bottom; B. rotating the filter support frame so that the locking structure is engaged; when the filter support frame is rotated, the cup-shaped filter screen is stationary.

10. A dishwasher, characterized in that The dishwasher comprises an inner container and the filter device according to any one of claims 1 to 8 mounted on the inner container.

Images