Dishwasher liner and manufacturing method thereof

Abstract

The present invention discloses a dishwasher liner and a manufacturing method thereof. The liner includes an integrated plate having a bottom plate portion and a side plate portion. The side plate portion is bent and together with the bottom plate portion forms the dishwasher liner. In the present invention, the dishwasher liner is formed by bending the integrated cross-shaped plate. The formed dishwasher liner structure is more stable, and only the joints of the side plates need to be welded, thereby solving the problems of long welding length and complex process in the prior art.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, and in particular to a dishwasher inner container and a manufacturing method thereof. Background Art

[0002] A dishwasher is a device that automatically washes bowls, chopsticks, plates, dishes, knives, forks and other tableware. Dishwashers for home use on the market include cabinet-type, table-top, and integrated sink types, etc. However, dishwashers often take up a large amount of kitchen space, which brings inconvenience to users. Drawer-type dishwashers are now available on the market. Drawer-type dishwashers can be pushed in / out and are set in the dishwasher shell or bracket, which is convenient for users to use. However, the inner tanks of dishwashers are mostly made of plastic materials, which have poor structural strength and are prone to deformation and even discoloration, affecting the appearance. To address this, stainless steel inner tanks have appeared on the market. Their overall stainless steel appearance gives users a high-end experience. However, stainless steel inner tanks are now mostly produced by stamping. In this way, the stainless steel inner tanks are prone to cracking after high stretching, which weakens the strength and reduces the product quality. In addition, some dishwasher inner tanks are formed by splicing multiple independent parts. The spliced ​​parts need to be aligned and positioned and welded. There are many welding positions and the welding process is complicated, which is not conducive to improving production efficiency. In addition, the structural strength of the inner tank spliced ​​by multiple independent parts depends on the welding process, and the quality stability is not high. The inner tank of the integrated stamping is easily scrapped due to the need to undergo high-intensity stretching.

[0003] In view of this, the present invention is proposed. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a dishwasher inner tank which is formed by bending an integral plate, thereby reducing welding positions and simplifying the processing technology.

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0006] A dishwasher inner container comprises an integrated plate having a bottom plate portion and side plate portions. The side plate portions are bent to form the dishwasher inner container together with the bottom plate portion.

[0007] In the above solution, the inner liner is formed by bending an integral plate, which reduces the length of the weld and simplifies the processing technology.

[0008] Preferably, the bottom plate has a plurality of edges, and the side plate comprises plate bodies respectively connected to the edges of the bottom plate, and the plate bodies are bent toward the same side of the bottom plate to form a side wall of the dishwasher.

[0009] In the above solution, through the solution of the present invention, inner containers of different shapes can be manufactured respectively, each plate is bent relative to the bottom plate, and two adjacent plates are spliced ​​together to form the side wall of the annular dishwasher.

[0010] Preferably, the bottom plate is a quadrilateral plate, and the four sides of the quadrilateral plate are respectively connected to a plate body. The four plate bodies are bent toward the same side of the bottom plate and together with the bottom plate form the inner tank of the dishwasher. The opposite sides of two adjacent plate bodies are in contact and connected using a set process.

[0011] Preferably, the opposite sides of two adjacent plates are in contact and welded together.

[0012] Preferably, of the two adjacent plates on the inner container, a connecting portion is provided on the side of one plate, and the plate is connected to the other plate via the connecting portion;

[0013] Preferably, the connecting portion includes a flange provided on one side edge of the plate body, and after the two plates are bent relative to the bottom plate portion, the side edge of one plate body is attached to the flange of the adjacent plate body.

[0014] In the above solution, through the design of the flange structure, two adjacent plates can be fitted and positioned, which is convenient for fixation by welding, and the flange has left and right support and limitation functions for the other plate, which facilitates the welding process.

[0015] The flange is formed by bending the edge of a plate toward the plane of the adjacent plate. When the inner container comprises four plates, the flange is formed by bending the edge of the plate vertically. The bending direction can be toward the side of the adjacent plate or away from the side of the adjacent plate.

[0016] Preferably, the inner liner includes two first plates arranged on opposite sides of the bottom plate, and the other two plates of the inner liner are second plates. The bottoms of the two first plates are provided with recessed surfaces extending along the length direction of the plates and recessed in the direction of bending of each plate. The flanges are provided on both sides of the first plate. After each plate is bent relative to the bottom plate, the edges on both sides of the two second plates are attached to the flanges.

[0017] Preferably, the contour lines of the edges on both sides of the second plate body match the longitudinal cross-sectional profile of the first plate body, so that after the second plate body is connected to the flange of the first plate body, the edges are uniform and there are no protruding parts.

[0018] Preferably, the first plate is stamped on one side connected to the bottom plate to form a concave surface that gradually narrows toward the bottom plate and is connected to the bottom plate. The second plate is stamped on one side connected to the bottom plate to form a concave surface that gradually narrows toward the bottom edge and is connected to the bottom plate. After each plate is bent, the edges of the concave surfaces of the two adjacent plates are in contact and connected. In the above solution, concave surfaces are also provided on the two second plates corresponding to the concave surfaces on the first body. The concave surface of the first plate is connected to the concave surface of the second plate, and the planes at the top of the two concave surfaces are also connected. This avoids the connection between the two adjacent plates through an arc surface and a plane surface, simplifying the splicing process.

[0019] Another object of the present invention is to provide a method for manufacturing a dishwasher inner container, comprising the following steps:

[0020] S1. Punch out an integrated bottom plate and side plate from the sheet material according to the size of the inner container;

[0021] S2. Bend the panels in the side panels to form side walls of the dishwasher;

[0022] S3. Connect and fix the plates through a connection process.

[0023] Preferably, a quadrilateral bottom plate and four plate bodies respectively connected to the four sides of the bottom plate are punched out of the plate, and the plate bodies are vertically bent toward the same side of the bottom plate so that the plate bodies are spliced ​​together to form the side wall of the dishwasher, and the two opposite side edges of two adjacent plate bodies are welded.

[0024] Preferably, in step S1, a concave surface is punched out at the bottom of the two plates on both sides of the bottom plate along the bending direction of the plates;

[0025] Alternatively, in step S1, a convex profile is punched on the two plates on both sides of the bottom plate toward the side opposite to the bending direction of the plates, and the concave surface is formed between the bottom surface of the profile and the bottom edge of the plates.

[0026] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art.

[0027] The present invention discloses a dishwasher inner container, comprising a bottom plate and side panels, wherein the bottom plate and the side panels are integrally formed, and the side panels are bent and spliced ​​to form side walls of the dishwasher. In the present invention, the dishwasher inner container is formed by bending a cross-shaped integral plate, so that the dishwasher structure formed is more stable, and only the joints of the side panels need to be welded, thereby solving the problems of long welding length and complex process in the prior art.

[0028] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an undue limitation of the present invention. Obviously, the drawings described below are only some embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without inventive effort. In the accompanying drawings:

[0030] Figure 1 This is a schematic structural diagram of the inner liner of the present invention when it is unfolded;

[0031] Figure 2-4 There are three types of splicing structures;

[0032] Figure 5 It is a schematic diagram of a connection structure provided on the inner liner;

[0033] Figure 6 It is a front view of the liner;

[0034] Figure 7 yes Figure 6 Enlarged view of part A in the middle;

[0035] Figure 8 This is another front view of the liner;

[0036] Figure 9 yes Figure 8 Enlarged view of middle part B;

[0037] Figure 10 This is a schematic diagram of a water retaining structure provided on an inner liner;

[0038] Figure 11 This is a schematic diagram of another water retaining structure of the inner tank;

[0039] Figure 12 This is another structural diagram of the inner tank connection structure;

[0040] Figure 13 It is a structural diagram of the connecting flange;

[0041] Figure 14 This is an exploded view of a structure of the liner;

[0042] Figure 15 This is a schematic diagram of the structure of another liner;

[0043] Figure 16 yes Figure 12 Schematic diagram of the connection between the outer plate and the second connecting structure at A in the middle;

[0044] Figure 17 is a structural schematic diagram of the outer plate and the second connecting structure of the present invention;

[0045] Figure 18 yes Figure 17 The enlarged view at point B is a schematic structural diagram of the limiting structure in the second connecting structure.

[0046] In the figure: 100, connecting structure; 101, first component; 102, second component; 103, third component; 104, fourth component; 1001, straight portion; 1002, bent portion; 200, liner body; 201, front plate; 2011, mounting port; 2012, first splicing portion; 2013, second splicing portion; 2014, splicing seam; 202, rear plate; 203, side plate; 205, flat portion; 206, curved portion; 2033, concave surface; 20331, horizontally bent surface ; 20332, vertical bending surface; 2034, press molding; 2035, recessed surface; 20351, first curve; 20352, second curve; 204, bottom plate; 250, first connecting surface; 251, second connecting surface; 252, bending section; 2001, water retaining structure; 301, door body; 302, outer plate; 600, sealing frame; 700, first horizontal flange; 701, longitudinal flange; 702, second horizontal flange; 800, convex portion; 900, concave portion; 991, sealing ring.

[0047] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0049] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the present invention.

[0050] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; and direct or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0051] Example 1

[0052] See also Figure 1 As shown, this embodiment 1 provides a dishwasher inner tank, including an integrated plate, the integrated plate having a bottom plate portion and a side plate portion, the bottom plate portion and the side plate portion are an integrated piece, and the side plate portion is bent to form the dishwasher inner tank together with the bottom plate portion.

[0053] In the above solution, the inner liner is formed by bending an integral plate, which reduces the length of the weld and simplifies the processing technology.

[0054] Preferably, the bottom plate has a plurality of edges, and the side plates include plate bodies respectively connected to the edges of the bottom plate 204 , and the plate bodies are bent toward the same side of the bottom plate to form the inner container of the dishwasher together with the bottom plate.

[0055] In the above solution, through the solution of the present invention, inner containers of different shapes can be manufactured respectively, each plate is bent relative to the bottom plate, and two adjacent plates are spliced ​​together to form the side wall of the annular dishwasher.

[0056] Preferably, the bottom plate is a quadrilateral plate, each of the four sides of the quadrilateral plate is connected to a plate body, the four plates are bent toward the same side of the bottom plate to form the side wall of the dishwasher, and the opposite sides of two adjacent plates are in contact and connected using a set process.

[0057] Preferably, the opposite sides of two adjacent plates are in contact and welded together.

[0058] Preferably, of the two adjacent plates on the inner container, a connecting portion is provided on the side of one plate, and the plate is connected to the other plate via the connecting portion;

[0059] Preferably, the connecting portion includes a flange provided on one side edge of the plate body, and after the two plates are bent relative to the bottom plate portion, the side edge of one plate body is attached to the flange of the adjacent plate body.

[0060] In the above solution, through the design of the flange structure, two adjacent plates can be fitted and positioned, which is convenient for fixation by welding, and the flange has left and right support and limitation functions for the other plate, which facilitates the welding process.

[0061] The flange is formed by bending the edge of a plate toward the plane of the adjacent plate. When the inner container comprises four plates, the flange is formed by bending the edge of the plate vertically. The bending direction can be toward the side of the adjacent plate or away from the side of the adjacent plate.

[0062] Preferably, the inner liner includes two first plates 8001 arranged on opposite sides of the bottom plate portion, and the other two plates of the inner liner are second plates 8002. The bottoms of the two first plates 8001 are provided with recessed surfaces 2033 / 2035 extending along the length direction of the plates and recessed in the direction of bending of each plate. The first plate 8001 is provided with flanges on both sides. After each plate is bent relative to the bottom plate portion 204, the edges on both sides of the two second plates 8002 are attached to the flanges.

[0063] Preferably, the contour lines of the edges of the second plate 8002 on both sides match the longitudinal cross-sectional profile of the first plate 8001. In this way, after the second plate 8002 is connected to the flange of the first plate 8001, the edges are uniform without protruding parts.

[0064] Preferably, the first plate body 8001 is stamped on one side connected to the bottom plate portion to form a recessed surface 2033 / 2035 that gradually narrows toward the bottom plate portion and is connected to the bottom plate portion, and the second plate body 8002 is stamped on one side connected to the bottom plate portion to form a recessed surface 2033 / 2035 that gradually narrows toward the bottom edge and is connected to the bottom plate portion. After each plate body is bent, the edges of the recessed surfaces 2033 / 2035 of the two adjacent plates are in contact and connected accordingly. In the above scheme, recessed surfaces 2033 / 2035 are also set on the two second plates 8002 corresponding to the recessed surfaces 2033 / 2035 on the first body. The recessed surface 2033 / 2035 of the first plate 8001 is connected to the recessed surface 2033 / 2035 of the second plate 8002, and the planes on the top of the recessed surfaces 2033 / 2035 of the two are also connected accordingly, thereby avoiding the connection between the two adjacent plates through the arc surface and the plane, and simplifying the splicing process.

[0065] The following is a method for manufacturing the dishwasher liner, comprising the following steps:

[0066] S1. Punch out an integrated bottom plate and side plate from the sheet material according to the size of the inner container;

[0067] S2. Bend the panels in the side panels to form side walls of the dishwasher;

[0068] S3. Connect and fix the plates through a connection process.

[0069] Preferably, a quadrilateral bottom plate portion and four plate bodies respectively connected to the four sides of the bottom plate portion are punched out on the plate, and each plate body is vertically bent toward the same side of the bottom plate portion so that the plates are spliced ​​together to form the side wall of the dishwasher, and the two opposite side edges of two adjacent plates are welded.

[0070] Preferably, in step S1 , a concave surface 2033 is punched out at the bottom of the two plates on both sides of the bottom plate portion along the bending direction of the plates.

[0071] Alternatively, in step S1, a convex profile is punched on the two plates on both sides of the bottom plate portion toward the side opposite to the bending direction of the plate, and the concave surface 2035 is formed between the bottom surface of the profile and the bottom edge of the plate.

[0072] Example 2

[0073] This embodiment is similar to the second embodiment in that the inner container also includes a bottom plate portion and side plates, which are integrally formed, and the side plates are bent and spliced ​​to form the side walls of the dishwasher. The difference is that adjacent plates are connected by a splicing structure.

[0074] See also Figure 2-4 As shown, the splicing structure includes a first connecting surface 250 provided on one of two adjacent plates and a second connecting surface 251 provided on the other plate, and the first connecting surface 250 and the second connecting surface 251 are fitted and connected.

[0075] In the above solution, the splicing structure is connected in a surface-to-surface fitting manner, which is beneficial to the splicing positioning of each plate and is not affected by processing errors.

[0076] Preferably, among the two adjacent plates, one side edge where one plate is spliced ​​with the other plate is provided with a first connecting surface 250 that bends and extends toward the outside of the inner liner, and the corresponding side edge of the other plate is provided with a second connecting surface 251 that bends and extends toward the outside of the inner liner, and the first connecting surface 250 and the second connecting surface 251 are fitly connected.

[0077] In the above solution, the first connecting surface 250 and the second connecting surface 251 are welded after being bonded together. The first connecting surface 250 can be obtained by bending the edge of the corresponding plate at a certain angle, and the second connecting surface 251 can be obtained by bending the edge of another plate at a certain angle. The bending angle ensures that the first connecting surface 250 and the second connecting surface 251 are parallel to each other, so that the surface-to-surface bonding can be achieved.

[0078] See also Figure 2 As shown, the first connecting surface 250 and the second connecting surface 251 are both formed by vertically bending the edges of the corresponding plates.

[0079] Preferably, the first connecting surface 250 and the second connecting surface 251 are welded and fixed after being fitted together; the two connecting surfaces can be connected at the corner of the inner liner, or can be connected in a direction perpendicular to a surface of a plate.

[0080] Preferably, the first connecting surface 250 and the second connecting surface 251 are of equal length, and both lengths are very small so as not to affect the installation space of the dishwasher inner tank. In addition, the first connecting surface 250 and the second connecting surface 251 are of equal length, and the end surface formed after welding is wide, which is not easy to cause cuts to the external structure.

[0081] See also Figure 3 As shown, in another embodiment, one of the two adjacent plates has a first connecting surface 250 on one side of the spliced ​​edge where one plate meets the other, and a second connecting surface 251 on the corresponding side of the other plate, which is bent and extended toward the exterior of the inner liner. The length of the second connecting surface 251 is greater than that of the first connecting surface 250. After the first and second connecting surfaces 250 and 251 are bonded, the portion of the second connecting surface 251 that is longer than the first connecting surface 250 is bent toward the other side of the first connecting surface 250, forming a three-layer bonding surface. The three-layer bonding surface is bent toward and bonded to the outer surface of either plate. In this embodiment, a three-layer bonding surface is formed, the spliced ​​structure is relatively stable, and there are no protruding end surfaces, which will not damage other components.

[0082] See also Figure 4 As shown, in another embodiment, among the two adjacent plates, the edge of one side where one plate is spliced ​​with the other plate is formed with a recess toward the outside of the inner tank to form the first connecting surface 250, and the edge of the corresponding side of the other plate is the second connecting surface 251, and the edge of the corresponding side of the plate is attached to the first connecting surface 250.

[0083] In the above solution, among two adjacent plates, the edge of one plate is recessed to form the first connection surface 250 , while the edge of the other plate remains unchanged and is directly connected to the first connection surface 250 .

[0084] Preferably, the edge of one plate is first bent toward the side away from the inner liner to form a bent section 252, and the bent section 252 is bent again to form a first connecting surface 250 parallel to the edge of the other plate. The height of the bent section 252 in the direction perpendicular to the first connecting surface 250 matches the thickness of the second connecting surface. After the second connecting surface 251 is attached to the first connecting surface 250, the inner surfaces of the two plates transition smoothly, thereby making the internal structure of the inner liner flat.

[0085] The inner pot of the present invention can be pushed in / out and arranged in the shell or bracket of the dishwasher. In order to connect the edges of the plates, the side of one plate can be bent to the plane where the other plate is located between two adjacent plates. In this way, the splicing structure is located in a flat position, which makes splicing easy and welding convenient.

[0086] Example 3

[0087] See also Figure 5 As shown, in this embodiment, the inner liner is formed after assembly and welding. The formed inner liner includes a bottom plate 204, two side plates 203 extending along the movement direction of the inner liner and arranged on both sides of the bottom plate 204, and a front plate 201 and a rear plate 202 respectively connecting the two ends of the two side plates 203. At least the two side plates 203 are provided with a concave surface concave toward the interior of the inner liner.

[0088] In this embodiment, the inner liner is provided with a recessed surface for avoiding the slide rail, which is beneficial to the expansion of the inner liner. In addition, the recessed surface is provided on the side panel 203, which has little stretching and does not affect the structural strength of the inner liner.

[0089] Preferably, the concave surface 2033 ( Figure 5 Not shown in Figure 6-9 ).

[0090] See also Figure 6 and Figure 7 As shown, the recessed surface 2033 includes a horizontal bending surface 20331 formed by bending the bottom of the side panel 203 from top to bottom toward the inside of the inner tank, and a vertical bending surface 20332 formed by bending the end of the horizontal bending surface 20331 vertically downward. The horizontal bending surface 20331 and the vertical bending surface 20332 are connected and transitioned by a smooth arc surface.

[0091] See also Figure 8 and Figure 9 As shown, in another embodiment, the two side plates 203 are respectively punched with convex profiles 2034 in directions opposite to the opposite side plates 203 , and a concave surface 2035 is formed on the side plates 203 at the bottom of the profiles 2034 .

[0092] In this embodiment, the recessed surface 2035 is formed by stamping the side panel 203 with the profiling 2034, leaving the bottom of the side panel 203 with a recessed surface 2035 relative to the profiling 2034. This creates a convex structure, expanding the interior space of the liner. In this embodiment, the recessed surface 2035 differs from the aforementioned recessed surface 2033 in that it has a smaller curvature due to the larger profiling area. A larger curvature of the stamped recessed surface 2035 would have resulted in excessive stretching.

[0093] The middle portion of the side plate 203 is punched toward the outside of the inner container, forming a large-area convex profile 2034 in the middle portion of the side plate 203, thereby facilitating the expansion of the inner container.

[0094] Preferably, the cross-sectional profile of the recessed surface 2035 longitudinally cut through a vertical plane perpendicular to the side panel 203 on which it is located includes, from top to bottom, a first curve 20351 with a center of curvature inside the inner liner and a second curve 20352 with a center of curvature outside the inner liner, and the first curve 20351 and the second curve 20352 have a smooth transition.

[0095] The length of the first curve 20351 is equal to the length of the second curve 20352; the curvature of the first curve 20351 is equal to the curvature of the second curve 20352. Through this structural design, the edge of the press 2034, or the recessed surface 2035, has the same tensile strength at the two bends, and the plate is evenly stretched and has a uniform thickness, thereby preventing local excessive stretching from affecting the quality of the liner.

[0096] Example 4

[0097] In this embodiment, see Figure 10-11 As shown, the inner tank is further described. The inner tank includes an inner tank body 200 and a sealing frame 600. The inner tank body includes the two side panels, the front panel, the back panel and the bottom panel, wherein the two first panels 8001 are the two side panels, and the two second panels are the front panel and the back panel. The sealing frame 600 is sealed and installed on the top opening of the inner tank body 200. A water retaining structure 2001 is provided on the side of the inner tank for blocking water from entering the gap between the sealing frame 600 and the wall of the inner tank body 200. The setting of the water retaining structure can effectively prevent washing water from entering the gap between the sealing frame 600 and the wall of the inner tank body 200, flushing the sealing structure, extending the service life of the sealing structure, and improving the overall user experience of the product.

[0098] In order to avoid noise caused by friction during assembly between the sealing frame 600 and the liner body 200 and to improve the tightness of the seal, a sealing ring 991 is provided between the sealing frame 600 and the liner body 200 .

[0099] like Figure 10 As shown, in one embodiment, the water retaining structure 2001 is a raised structure protruding toward the center of the inner tank, and the surface of the raised structure is arc-shaped. A receiving portion is provided on the sealing frame 600, and the water retaining structure 2001 is snap-connected to the receiving portion. The receiving portion is a groove recessed toward the center of the inner tank, and the inner surface of the groove is consistent in shape with the outer surface of the water retaining structure 2001, which facilitates the installation of the sealing frame 600. While increasing the density of the sealing structure, it improves the compactness of the assembly between the sealing frame 600 and the inner tank body 200, and at the same time improves the safety of the dishwasher.

[0100] like Figure 11As shown, in another embodiment, the water retaining structure 2001 is a raised structure protruding toward the center of the inner tank, and the raised structure is located at the lower edge of the sealing frame 600. The height of the raised structure is greater than or equal to the gap between the sealing frame and the wall of the inner tank body. This structure can effectively seal the gap between the sealing frame 600 and the wall of the inner tank body 200, preventing washing water from entering through the gap to flush the sealing ring 991, and long-term flushing to damage the sealing ring 991 and cause water leakage. At the same time, it also reduces the failure rate of the dishwasher, extends the product life cycle, and improves the user experience.

[0101] In the above embodiment, the front plate, the rear plate and the two side plates of the inner tank body 200 are connected by a rounded transition structure between adjacent plates, and the water retaining structure 200 is located at the upper part of the inner tank.

[0102] Example 5

[0103] like Figure 5 、 12 As shown in Figures 13, 14, and 16-18, a dishwasher liner structure is provided (the bottom plate portion is cut out for convenience in the figure). The liner is suitable for the liner of a drawer-type dishwasher and includes an liner body 200 with an opening at the top and a connecting structure 100 provided at the open end of the liner and extending toward the outside of the liner. The liner body 200 includes a first side wall, on which a first connecting structure for connecting to a door body 301 is provided, and on two side walls adjacent to the first side wall, second connecting structures 102 for connecting to an outer panel 302 are provided. The flange structure formed by bending the end of the first side wall of the liner body 200 toward the outside of the liner serves as the first connecting structure 101 for connecting to the door body 301, and the two side walls adjacent to the first side wall are provided with second connecting structures 102 for connecting to the outer panel 302; the flange structure formed by bending the first side wall of the liner body 200 serves as a part of the connecting structure 100, thereby reducing the connecting welds between the connecting structure 100 and the liner body 200, reducing the welding workload, and increasing the efficiency of liner production.

[0104] Preferably, the end of the first side wall extends upward to form an extension portion that is higher than the adjacent two side walls, and the end of the extension portion is folded toward the outside of the inner liner body 200 to form a horizontal flange structure. The first side wall is a flat plate structure, and the first connecting structure 101 is formed by folding the end of the flat plate structure portion; the flange structure avoids the curved surface structure so that the flange structure is formed by folding the flat portion, making the flange structure simpler to form.

[0105] like Figure 13As shown, the second connecting structure 102 is a connecting flange, and the opposite side walls of the inner tank body 200 are respectively integrally connected with connecting flanges, and the two side walls adjacent to the first side wall include a flat portion 205 and a first curved portion 206 transitionally connected to the first side wall, and the connecting flange includes a straight portion 1002 corresponding to the connecting flat portion 205 and a first bent portion 1002 corresponding to the connecting first curved portion 206; the end of the first bent portion 1002 of the connecting flange is spliced ​​with the end of the first connecting structure 101 to form an integral structure, and the integral structure is formed by welding; preferably, the straight portion 1001 and the bent portion 1002 are integrally bent and formed, without using welding or clamping, screwing or other connection methods, thereby increasing the strength of the connecting flange and increasing production efficiency.

[0106] Furthermore, the edge of the connecting flange close to the inner liner body 200 extends vertically downward to form a vertical connecting surface, and the vertical connecting surface is fixedly connected to the open end of the inner liner body 200.

[0107] In one embodiment, the inner tank body 200 also includes a second side wall opposite to the first side wall, and the second side wall is a flat plate structure with the same shape and size as the first side wall. The second side wall is provided with a third connecting structure 103, and the third connecting structure 103 is a second flange structure formed by folding the end of the second side wall. Furthermore, both side walls adjacent to the first side wall also include a second curved portion 207 transitionally connected to the second side wall, and the connecting flange also includes a second bent portion 1003 connected to the corresponding second curved portion 207. The connecting flange is spliced ​​with the first connecting structure 101 and the third connecting structure 103 to form a connecting structure 100 located at the open end of the inner tank body and extending toward the outside of the inner tank; the connecting structure 100 prevents water in the inner tank of the dishwasher from splashing into the middle of the inner tank and the outer plate to form water accumulation, affecting the user experience.

[0108] Preferably, the upper end surfaces of the connecting flange, the first connecting structure 101 and the third connecting structure 103 are flush and located on the same plane.

[0109] A forming process for a dishwasher inner tank structure, the forming process comprising the following steps:

[0110] (1) The inner liner body 200 is manufactured by stamping, stretching, or splicing according to the inner liner size;

[0111] (2) The opening end of the inner liner body 200 is bent relative to the side wall end to form the first connecting structure 101 and the third connecting structure 103, and the connecting flange is integrally formed by stamping and bending;

[0112] (3) Connecting flanges are placed on the unbent side wall ends of the open end of the liner body 200, and the two ends of the connecting flanges are connected to the two ends of the first connecting structure 101 and the third connecting structure 103 respectively. Through the connection process, the open end of the liner body is provided with a connecting structure 100 extending toward the outside of the liner.

[0113] (4) After step (3) is completed, an inner liner is formed. If you need to continue making the inner liner, repeat steps (1)-(4);

[0114] Preferably, the connection process in step (3) is welding.

[0115] A bottom bracket 500 is installed at the bottom of the liner body 200 , and a bottom cover 400 is further provided between the bottom of the liner body 200 and the bottom bracket 500 .

[0116] Example 6

[0117] The following describes how the connection structure is connected to the outer plate.

[0118] like Figure 16 As shown, the second connecting structure 102 and the outer panel 302 are each provided with a stopper structure that cooperates with each other to limit the movement of the outer panel 302. The flange structure formed by the first side wall of the liner body 200, which is bent toward the outside of the liner, is used to connect to the first connecting structure 101 of the door body 301. The two side walls adjacent to the first side wall each have a second connecting structure 102 for connecting to the outer panel 302. The flange structure formed by the bending of the first side wall of the liner body 200 serves as part of the connecting structure 100, reducing the number of welds between the connecting structure 100 and the liner body 200, reducing the welding workload and increasing the efficiency of liner production.

[0119] Furthermore, the limiting structure includes a recessed portion 900 / convex portion 800 provided on the connecting structure 100 and a convex portion 800 / recessed portion 900 provided on the outer panel 302. The convex portion 800 / recessed portion 900 on the outer panel 302 and the recessed portion 900 / convex portion 800 on the connecting structure 100 engage with each other to limit the movement of the outer panel 302. At the same time, the outer panel 302 and the second connecting structure 102 use a concave-convex engagement method to limit the left and right and upward position of the outer panel 302, making the connection method simple and easy to install.

[0120] In another embodiment, the protrusion 800 is a protruding structure provided on the outer panel 302, and the recess 900 is a recess 900 provided on the second connecting structure 102 that can accommodate the protruding structure. The protruding structure is an upward protrusion in the middle position of the upper end surface of the outer panel 302, and the recess is a groove on the lower end surface of the second connecting structure 102 that is recessed inward corresponding to the protrusion 800, and the protrusion 800 is inserted into the groove of the recess 900.

[0121] As a variation of the above embodiment, the protrusion 800 is a protruding structure arranged at the lower end of the second connecting structure 102, and the upper end of the outer plate 302 is provided with a recessed portion 900 that can accommodate the protruding structure. Preferably, the limiting structure is a protrusion 800 formed by protruding downward from the middle position of the lower end surface of the second connecting structure 102, and the recessed portion 900 is a groove on the upper end surface of the outer plate 302 that is recessed inwardly corresponding to the protrusion 800, and the protrusion 800 is inserted into the groove of the recessed portion 900.

[0122] The first connecting structure 101 described in this embodiment is an extension portion extending upward from the end of the first side wall and higher than the adjacent two side walls. The end of the extension portion is folded toward the outside of the inner liner to form a horizontal flange structure. The first side wall is a flat plate-like structure. The first connecting structure 101 is formed by folding the end of the flat plate-like structure portion, and the flange structure is simpler to form.

[0123] In this embodiment, the second connecting structure 102 is a connecting flange, and the opposite side walls of the inner liner body 200 are respectively integrally connected with a connecting flange, and the two side walls adjacent to the first side wall include a flat portion 205 and a first curved portion 206 transitionally connected to the first side wall, and the connecting flange includes a straight portion 1002 corresponding to the flat portion 205 and a first bent portion 1002 corresponding to the first curved portion 206; the end of the first bent portion 1002 of the connecting flange is spliced ​​with the end of the first connecting structure 101 to form an integral structure, and the integral structure is formed by welding; preferably, the straight portion 1001 and the first bent portion 1002 are integrally bent and formed, without using welding or clamping, screwing or other connection methods, thereby increasing the strength of the connecting flange and increasing production efficiency.

[0124] Furthermore, the second connecting structure 102 is a connecting flange fixedly connected to the two side walls adjacent to the first side wall, and the two side walls adjacent to the first side wall both include a flat portion 205 and a first curved portion 206 transitionally connected to the first side wall, and the connecting flange includes a straight portion 1002 corresponding to the flat portion 205 and a first bent portion 1002 corresponding to the first curved portion 206, the straight portion 1002 is connected to the outer panel 302, and a limiting structure for limiting the movement of the outer panel 302 is provided on the straight portion 1002.

[0125] Furthermore, the upper edge of the outer plate 302 extends toward the inner side of the liner body 200 to form a first horizontal surface, the middle position of the first horizontal surface bulges upward to form a convex portion 900, the straight portion 1001 of the connecting flange extends downward near the edge of the outer plate 302 side to form a vertical connecting surface, the vertical connecting surface and the outer surface of the outer plate 302 are flush and located in the same plane, the lower end of the vertical connecting surface extends toward the inner side of the liner body 200 to form a second horizontal surface, the middle position of the second horizontal surface is recessed inward to form a groove that cooperates with the convex portion 800, the first horizontal surface and the second horizontal surface are tightly fitted, and the convex portion 800 is engaged in the groove;

[0126] Preferably, the convex portion 800 is a through-protrusion provided at the middle position of the first horizontal plane, and the concave portion 900 is a through-groove provided at the middle position of the second horizontal plane.

[0127] In one embodiment, the inner liner body 200 also includes a second side wall opposite to the first side wall, and the second side wall is a flat plate structure with the same shape and size as the first side wall. The second side wall is provided with a third connecting structure 103, and the third connecting structure 103 is a second flange structure formed by folding the end of the second side wall. Furthermore, the two side walls adjacent to the first side wall also include a second curved surface portion 207 that is transitionally connected to the second side wall, and the connecting flange also includes a second bent portion 1003 connected to the corresponding second curved surface portion 207. The connecting flange is spliced ​​with the first connecting structure 101 and the third connecting structure 103 to form a connecting structure 100 located at the open end of the inner liner body 200 and extending toward the outside of the inner liner.

[0128] Preferably, the upper end surfaces of the first connection structure 102 , the first connection structure 101 and the third connection structure 103 are flush and located on the same plane.

[0129] In another embodiment, Figure 18 As shown, the difference between this embodiment and the above embodiment is that the second connecting structure 102 is a flange structure integrally provided with the inner liner body 200. Specifically, the upper edges of the two side walls adjacent to the first connecting structure 101 are folded toward the outside of the inner liner body 200 to form a flange structure, and the flange structure includes a first horizontal flange 700, a longitudinal flange 701, and a second horizontal flange 702. The first horizontal flange 700 is formed by horizontally folding one side edge of the inner liner body 200 toward the outside of the inner liner. The side edge of the first horizontal flange 700 extends vertically downward to form the longitudinal flange 701, and the lower end edge of the longitudinal flange 701 extends toward the inner side of the inner liner body 200 to form the second horizontal flange 702. The second horizontal flange 702 is provided with a limiting structure for limiting the movement of the outer plate 302.

[0130] Furthermore, the upper edge of the outer plate 302 extends toward the inside of the inner liner body 200 to form a first horizontal surface. The middle position of the first horizontal surface is raised upward to form a convex portion 800. The middle position of the second horizontal flange 702 is recessed inward to form a groove that matches the convex portion 800. The first horizontal surface and the second horizontal flange 702 are tightly fitted together, and the convex portion 800 is engaged in the groove.

[0131] Preferably, the convex portion 800 is a through-protrusion disposed at the middle position of the first horizontal plane, and the concave portion 900 is a through-groove disposed at the middle position of the second horizontal plane.

[0132] Example 7

[0133] like Figure 12 As shown, the second connecting structure 102 and the outer panel 302 body are integrally formed. Specifically, the second connecting structure 102 is a connecting flange formed by bending and stretching from the end of the outer panel 302 body, which is integrally provided with the outer panel 302 body. The outer panel 302 body is used to cover the outer side of the inner liner body 200 and serve a decorative purpose. The connecting flange is used to connect the outer panel 302 and the inner liner body 200. The present invention adopts a structure in which the second splicing component 102 and the outer panel 302 body are integrally formed. When connecting the inner liner body 200 and the outer panel 302, the connection between the intermediate connecting structure and the outer panel 302 is reduced, thereby reducing the number of welding steps.

[0134] See also Figure 1 As shown, the most preferred solution is to directly bend the top edge of the plate to form a part of the connection structure. Preferably, the top edge of each plate is bent to form four strip-shaped parts. The four strip-shaped parts are not connected at the corners of the inner liner. Therefore, four adapters are designed. The adapter includes a first connector and a second connector perpendicular to the first connector. The first connector and the second connector are transitioned through an arc to match the corners of the inner liner. The end of the first connector away from the second connector is connected to the corresponding strip part, and the end of the second connector away from the first connector is also connected to the corresponding other strip part. This structure only requires welding of four adapters, which reduces the length of the weld and improves production efficiency.

[0135] Example 8

[0136] See also Figure 15As shown, in this embodiment, a mounting opening 2011 for placing a detergent adding device is provided on the inner tank. A specific solution is that the inner tank is divided into a bottom wall (or called a bottom plate) and side walls (including a front plate, a back plate and two side plates), wherein the front plate is further divided into a first splicing portion 2012 and a second splicing portion 2013, the first splicing portion 2012 and the second splicing portion 2013 are spliced ​​to form the front plate, the first splicing portion and the second splicing portion are both connected to the bottom plate at the bottom, and a notch is provided on the first splicing portion 2012 and / or the second splicing portion 2013, the notch forms a mounting opening 2011 for placing the detergent adding device after the first splicing portion 2012 and the second splicing portion 2013 are spliced.

[0137] Specifically, the first splicing portion 2012 includes a first splicing surface formed by vertically connecting the first side and the first bottom edge, and the second splicing portion 2013 includes a second splicing surface formed by vertically connecting the second side and the second bottom edge. The first side and / or the second side are provided with a notch, and the first side of the first splicing surface and the second side of the second splicing surface are aligned so that the first splicing surface and the second splicing surface are located in the same horizontal plane. The notch forms an installation port 2011 for placing a detergent adding device when spliced, and the size of the notch can be set to different sizes and shapes according to the size of the detergent adding device.

[0138] For example, a notch can be opened on the first side of the first splicing surface, and a notch can be opened at the corresponding position of the second side. When the first splicing surface and the second splicing surface are spliced ​​together, the middle notch portion of the first side and the middle notch portion of the second side form an installation port 2011 for placing a detergent adding device.

[0139] As an alternative to the above-mentioned solution, a notch may be provided on one side of the first splicing surface or the second splicing surface. For example, a notch may be provided on one side of the first splicing surface. When the first splicing surface and the second splicing surface are spliced ​​together, the notch portion of the first splicing surface and the second splicing surface form an installation opening 2011 for placing a detergent adding device.

[0140] In this embodiment, an installation port 2011 for placing a detergent adding device is formed at the position of the joint seam 2014, which reduces the length of the weld and can even eliminate the middle weld, which not only reduces the number of welding steps but also saves costs.

[0141] Furthermore, a fixing plate is provided at the installation opening 2011 , and the fixing plate is located outside the inner tank body. The detergent adding device is fixedly connected to the fixing plate by screws, and is thereby fixed to the inner tank body.

[0142] Preferably, a sealing ring that matches the shape and size of the mounting opening 2011 is provided between the fixing plate and the detergent adding device to increase the sealing between the detergent adding device and the inner tank body.

[0143] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as above in terms of a preferred embodiment, it is not intended to limit the present invention. Any technician familiar with this patent can make slight changes or modifications to equivalent embodiments using the above technical content without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the solution of the present invention.

Claims

1. A dishwasher liner, characterized in that: The integrated plate comprises a bottom plate portion and a side plate portion, wherein the side plate portion is bent and together with the bottom plate portion forms the inner tank body of the dishwasher; The dishwasher inner tank also includes a sealing frame, which is sealingly mounted on the top opening of the inner tank body, and a water retaining structure is provided on the side of the inner tank for preventing water from entering the gap between the sealing frame and the wall surface of the inner tank body; the dishwasher inner tank also includes a connecting structure provided at the opening end of the inner tank and extending toward the outside of the inner tank, the inner tank body includes a first side wall, a first connecting structure for connecting to the door body is provided on the first side wall, and second connecting structures for connecting to the outer panel are respectively provided on the two side walls adjacent to the first side wall; the flange structure formed by the end of the first side wall of the inner tank body being bent toward the outside of the inner tank serves as the first connecting structure for connecting to the door body, and the two side walls adjacent to the first side wall are respectively provided with second connecting structures for connecting to the outer panel; The second connection structure is a connection flange, and the two opposite side walls of the inner tank body are respectively integrally connected with the connection flanges. The end of the first bent portion of the connection flange is spliced ​​with the end of the first connection structure to form an integral structure.

2. A dishwasher liner according to claim 1, characterized in that: The bottom plate has a plurality of edges, and the side plate comprises plate bodies respectively connected to the edges of the bottom plate. The plate bodies are bent toward the same side of the bottom plate to form the inner container of the dishwasher together with the bottom plate.

3. A dishwasher liner according to claim 2, characterized in that: The bottom plate is a quadrilateral plate, and each of the four sides of the quadrilateral plate is connected to a plate body. The four plate bodies are bent toward the same side of the bottom plate and together with the bottom plate body form the inner tank of the dishwasher. The opposite sides of two adjacent plate bodies are in contact and connected using a set process.

4. A dishwasher liner according to claim 3, characterized in that: The opposite sides of two adjacent plates are in contact and welded together.

5. A dishwasher liner according to any one of claims 1 to 4, characterized in that: Among the two adjacent plates on the inner container, a connecting portion is provided on the side of one plate, and the plate is connected to the other plate through the connecting portion.

6. The dishwasher liner according to claim 5, characterized in that: The connecting portion includes a flange arranged on one side edge of the plate body. After the two plates are bent relative to the bottom plate, the side edge of one plate body is attached to the flange of the adjacent plate body.

7. The dishwasher liner according to claim 3, characterized in that: The inner liner includes two first plates arranged on opposite sides of the bottom plate, and the other two plates of the inner liner are second plates. The bottoms of the two first plates are provided with concave surfaces extending along the length direction of the plates and concave in the direction of bending of each plate. The flanges are provided on both sides of the first plate. After each plate is bent relative to the bottom plate, the edges on both sides of the two second plates are attached to the flanges.

8. The dishwasher liner according to claim 7, characterized in that: The contour lines of the two side edges of the second plate body match the longitudinal cross-sectional profile lines of the first plate body.

9. The dishwasher inner container according to claim 7, characterized in that: The first plate body is stamped to form a concave surface on the side connected to the bottom plate that gradually narrows toward the bottom plate and is connected to the bottom plate. The second plate body is stamped to form a concave surface on the side connected to the bottom plate that gradually narrows toward the bottom edge and is connected to the bottom plate. After each plate body is bent, the edges of the concave surfaces of the two adjacent plates are in contact and connected.

10. A method for manufacturing a dishwasher liner according to claim 1, characterized in that: The steps include: S1. Punch out an integrated bottom plate and side plate from the sheet material according to the size of the inner container; S2. Bend the panels in the side panels to form side walls of the dishwasher; S3. Connect and fix the plates through a connection process.

11. The manufacturing method according to claim 10, characterized in that: A quadrilateral bottom plate portion and four plate bodies connected to the four sides of the bottom plate portion are punched out of the plate material, and the plate bodies are vertically bent toward the same side of the bottom plate portion so that the plate bodies are spliced ​​together to form the side wall of the dishwasher, and the two opposite side edges of two adjacent plate bodies are welded.

12. The manufacturing method according to claim 11, wherein in step S1, a concave surface is punched out on the bottom of the two plates on both sides of the bottom plate portion along the bending direction of the plates; Alternatively, in step S1, a convex profile is punched on the two plates on both sides of the bottom plate toward the side opposite to the bending direction of the plates, and the concave surface is formed between the bottom surface of the profile and the bottom edge of the plates.

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