Dishwasher inner tank structure and forming process thereof

Abstract

The present invention discloses a dishwasher inner tank structure and a molding process thereof, comprising an inner tank body, a door body connected to the inner tank body, and an outer plate, characterized in that: the inner tank body comprises a first side wall, a first connecting structure for connecting to the door body is arranged on the first side wall, and a second connecting structure for connecting to the outer plate is arranged on the two side walls adjacent to the first side wall. The first connecting structure is a first flange structure formed by bending the end of the first side wall, so that the weld between the connecting structure and the open end of the inner tank body is reduced, the welding workload is reduced, the manufacturing time of the dishwasher inner tank structure is reduced, and the connection strength between the connecting structure and the inner tank is strengthened. The first connecting structure and the second connecting structure are spliced ​​to form a connecting structure at the open end of the inner tank and extending to the outside of the inner tank. The connecting structure can also play the role of a sealing frame, eliminating the manufacturing and assembly process of the sealing frame.

Description

Technical Field

[0001] The invention belongs to the field of dishwasher equipment, and in particular relates to a dishwasher inner tank structure and a molding process thereof. Background Art

[0002] The stainless steel inner liner of a dishwasher in the prior art is usually formed by one-piece stretching. From a structural point of view, the stainless steel inner liner with this one-piece stretching structure has poor consistency in the stretching structure, and some rounded corners are easily deformed by stretching. In addition, it is difficult to control the overall size of the stainless steel inner liner. From the perspective of material technology, the thickness of the stainless steel stretched inner liner material is related to the stretching depth. The deeper the stretching, the thicker the material thickness is required. In addition, the stretched inner liner will lead to uneven wall thickness of the inner liner, difficulty in deep stretching, and low production efficiency. Therefore, developing a stainless steel inner liner forming process with simple forming and reliable structure has always been the direction of efforts of those skilled in the art. The first purpose of the present invention is to provide a dishwasher inner liner, in order to solve the problems of high manufacturing cost, difficult production process, complex welds, and appearance of the existing dishwasher inner liner.

[0003] The Chinese patent application number 201810427461.5 discloses an inner tank structure of a dishwasher, including a top plate, a frame and a bottom plate, wherein the bottom plate is an open structure at one end, the frame is an open structure at both ends, the top plate is also an open structure at both ends, the bottom plate is connected to the bottom end of the frame, and the opening of the bottom plate corresponds to the lower end opening of the frame, and the top plate is connected to the top end of the frame. The combined inner tank in this patent has the advantages of low manufacturing cost and simple process compared to the integral inner tank formed in one piece. However, the technical solution of this patent requires welding at the connection between the top plate and the top of the frame, and the bottom end of the frame structure and the bottom plate. The welding workload is large, there are many welds, which affects the strength of the inner tank, and the welds need to be polished and other subsequent work, and the inner tank production time is long.

[0004] In view of this, the present invention is proposed. Summary of the invention

[0005] 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 structure and a molding process thereof.

[0006] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is: a dishwasher inner tank structure, including an inner tank body, a door body connected to the inner tank body and an outer panel, the inner tank body includes a first side wall, a first connecting structure for connecting to the door body is arranged on the first side wall, and second connecting structures for connecting to the outer panel are respectively arranged on the two side walls adjacent to the first side wall.

[0007] Furthermore, the first connection structure is a first flange structure formed by bending the end of the first side wall.

[0008] 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 to form a horizontal flange structure.

[0009] Furthermore, the first side wall is a planar plate-like structure, and the first connecting structure is formed by folding an end portion of the planar plate-like structure portion.

[0010] Preferably, the second connection structure is a connection flange, and the two opposite side walls of the liner body are respectively integrally connected with the connection flanges.

[0011] Furthermore, both side walls adjacent to the first side wall include a planar portion and a first curved portion transitionally connected to the first side wall, and the connecting flange includes a straight portion corresponding to the planar portion and a first bent portion corresponding to the first curved portion.

[0012] Furthermore, the end of the first bent portion of the connecting flange and the end of the first connecting structure are spliced ​​into an integral structure.

[0013] Furthermore, the edge of the connecting flange close to the inner tank body extends vertically downward to form a vertical connecting surface, and the vertical connecting surface is fixedly connected to the opening end of the inner tank body.

[0014] Furthermore, the inner tank body also includes a second side wall opposite to the first side wall, the second side wall is a flat plate structure, the second side wall is provided with a third connecting structure, and the third connecting structure is a second flange structure formed by folding the end of the second side wall.

[0015] Furthermore, the first splicing component is a flange structure with an edge of a side plate extending toward the outside of the inner tank body, the flange structure is fixedly connected to the door body of the dishwasher, and both side ends of the flange structure are fixedly connected to one end of the bent portion of the connecting flange.

[0016] Furthermore, the flange structure includes a longitudinal flange and a horizontal flange, the edge of the side panel extends vertically upward to form a longitudinal flange, the upper end of the longitudinal flange extends toward the outside of the inner tank body to form a horizontal flange, the side edge of the horizontal flange is connected to the door body of the dishwasher, and the two end edges of the horizontal flange are fixedly connected to the end of the bending portion.

[0017] Furthermore, both side walls adjacent to the first side wall further include a second curved surface portion transitionally connected to the second side wall, and the connecting flange further includes a second bent portion connected to the corresponding second curved surface portion.

[0018] Preferably, the connecting flange is spliced ​​with the first connecting structure and the third connecting structure to form a connecting structure located at the opening end of the inner tank body and extending toward the outside of the inner tank.

[0019] Preferably, the upper end surfaces of the connecting flange, the first connecting structure and the third connecting structure are flush and located on the same plane.

[0020] A molding process for a dishwasher inner tank structure, the molding process comprising the following steps:

[0021] (1) Making the liner body by stamping, stretching, or splicing according to the liner size;

[0022] (2) The opening end of the liner body is bent relative to the end of the side wall to form a first connecting structure and a third connecting structure, and a connecting flange is integrally formed by stamping and bending;

[0023] (3) Connecting flanges are placed on the unbent side wall ends of the opening end of the liner body, and the two ends of the connecting flanges are respectively connected to the two ends of the first connecting structure and the third connecting structure, so that the opening end of the liner body has a connecting structure extending toward the outside of the liner through a connecting process;

[0024] (4) After step (3) is completed, an inner liner is formed. If you need to continue making the inner liner, repeat steps (1)-(4).

[0025] Preferably, the connection process in step (3) is welding.

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

[0027] 1. The opening end of the inner liner body of the present invention is bent relative to the end of the two side walls to form a flange structure as a part of the connection structure, which reduces the connection weld between the connection structure and the inner liner body, reduces the welding workload, and increases the efficiency of producing the inner liner.

[0028] 2. The first connection structure and the second connection structure of the present invention are spliced ​​to form a connection structure at the opening end of the inner liner and extending to the outside of the inner liner. The connection structure can also serve as a sealing frame, eliminating the sealing frame manufacturing and assembly process.

[0029] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] 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 improper limitation of the present invention. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the accompanying drawings:

[0031] Figure 1 This is an exploded view of the inner tank structure of the dishwasher of the present invention;

[0032] Figure 2 It is a schematic diagram of the inner tank structure of the dishwasher of the present invention;

[0033] Figure 3 It is a schematic diagram of the connecting flange structure of the present invention;

[0034] Figure 4 It is a schematic diagram of the inner tank structure of the dishwasher of the present invention;

[0035] Figure 5 yes Figure 4 The enlarged view at point A in the middle is a schematic diagram of the connection between the outer plate and the second connection structure;

[0036] Figure 6 is a structural schematic diagram of the outer plate and the second connecting structure of the present invention;

[0037] Figure 7 yes Figure 6 The enlarged view at B is a schematic structural diagram of the limiting structure in the second connecting structure;

[0038] Figure 8 It is a schematic diagram of the connection between the inner tank body and the connection structure of the dishwasher of the present invention;

[0039] Fig. 9 It is a schematic diagram of the connection between the inner tank body and the connection structure of the dishwasher of the present invention;

[0040] Fig.10 It is a schematic diagram of the connection between the inner tank body and the connection structure of the dishwasher of the present invention;

[0041] Fig.11 It is a schematic diagram of the splicing structure of the inner tank body of the dishwasher of the present invention;

[0042] Fig.12 is a front view of the inner tank body of the dishwasher of the present invention;

[0043] Fig.13 It is a schematic structural diagram of the inner tank body of the dishwasher of the present invention;

[0044] Fig.14 It is a schematic structural diagram of the inner tank body of the dishwasher of the present invention;

[0045] Fig.15 It is a structural schematic diagram of the concave surface of the present invention.

[0046] In the figure: 100, connecting structure; 101, first connecting structure; 102, second connecting structure; 103, third connecting structure; 1001, straight portion; 1002, first bending portion; 1003, second bending 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, plane portion; 206, first curved portion; 207, second curved portion; 2031, first extension surface; 20 32. second extension surface; 2033. recessed surface; 20331. horizontal bending surface; 20332. vertical bending surface; 2034. profiled surface; 2035. recessed surface; 20351. first curve; 20352. second curve; 204. bottom plate; 250. first connecting surface; 251. second connecting surface; 252. bending section; 301. door body; 302. outer plate; 400. bottom cover; 500 bottom support; 700. first horizontal flange; 701. longitudinal flange; 702. second horizontal flange; 800. convex portion; 900. concave portion.

[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 are intended 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 directions or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0050] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] Embodiment 1

[0052] like Figure 2 As shown, a dishwasher liner structure is provided, which is suitable for the liner of a drawer-type dishwasher, including an liner body 200 with an opening at the top and a connection structure 100 arranged at the opening end of the liner and extending to the outside of the liner, wherein the liner body 200 includes a first side wall, a first connection structure for connecting to a door body 301 is arranged on the first side wall, and a second connection structure 102 for connecting to an outer plate 302 is respectively arranged on the two side walls adjacent to the first side wall. The flange structure formed by bending the first side wall end of the liner body 200 toward the outside of the liner serves as the first connection structure 101 for connecting to the door body 301, and the two side walls adjacent to the first side wall are respectively provided with the second connection structure 102 for connecting to the outer plate 302; the flange structure formed by bending the first side wall of the liner body 200 serves as a part of the connection structure 100, which reduces the connection weld between the connection structure 100 and the liner body 200, reduces the welding workload, and increases the efficiency of producing the liner.

[0053] 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.

[0054] like Figure 3 As shown, the second connecting structure 102 is a connecting flange, and the connecting flanges are respectively integrally connected to the opposite side walls of the inner tank body 200, 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 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.

[0055] Furthermore, the edge of the connecting flange close to one side of the 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 liner body 200 .

[0056] In one embodiment, the inner tank body 200 also includes a second side wall opposite to the first side wall, 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, the third connecting structure 103 is a second flange structure formed by folding the end of the second side wall, further, the two side walls adjacent to the first side wall also include a second curved surface portion 207 transitionally connected to the second side wall, 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 tank body and extending to 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.

[0057] 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.

[0058] A molding process for a dishwasher inner tank structure, the molding process comprising the following steps:

[0059] (1) manufacturing the liner body 200 by stamping, stretching, or splicing process according to the liner size;

[0060] (2) The opening end of the liner body 200 is bent relative to the side wall end to form the first connection structure 101 and the third connection structure 103, and the connection flange is integrally formed by stamping and bending;

[0061] (3) Connecting flanges are placed on the unbent side wall ends of the opening 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 opening end of the liner body has a connecting structure 100 extending toward the outside of the liner;

[0062] (4) After step (3) is completed, an inner liner is formed. If you need to continue making the inner liner, repeat steps (1)-(4).

[0063] Preferably, the connection process in step (3) is welding.

[0064] like Figure 1 As described above, a base 500 is installed at the bottom of the inner liner body 200 , and a bottom cover 400 is also arranged between the bottom of the inner liner body 200 and the base 500 .

[0065] Embodiment 2

[0066] The following describes how the connection structure is connected to the outer panel.

[0067] like Figure 5As shown, the second connection structure 102 and the outer plate 302 are respectively provided with limiting structures that cooperate with each other to limit the movement of the outer plate 302. The flange structure formed by bending the end of the first side wall of the inner liner body 200 toward the outer side of the inner liner is used to connect the first connection structure 101 of the door body 301, and the two side walls adjacent to the first side wall are respectively provided with the second connection structure 102 for connecting the outer plate 302; the flange structure formed by bending the first side wall of the inner liner body 200 as a part of the connection structure 100 reduces the connection weld between the connection structure 100 and the inner liner body 200, reduces the welding workload, and increases the efficiency of producing the inner liner.

[0068] Furthermore, the limiting structure includes a concave portion 900 / convex portion 800 provided on the connection structure 100 and a convex portion 800 / concave portion 900 provided on the outer panel 302, and the convex portion 800 / concave portion 900 on the outer panel 302 and the concave portion 900 / convex portion 800 on the connection structure 100 are engaged with each other to limit the movement of the outer panel 302. At the same time, the outer panel 302 and the second connection structure 102 are engaged with each other to limit the left and right and upward position of the outer panel 302, and the connection method is simple and easy to install.

[0069] In another embodiment, the protrusion 800 is a protruding structure provided on the outer plate 302, and the recess 900 is a recess 900 provided on the second connecting structure 102 and capable of accommodating the protruding structure. The protruding structure is a protruding structure in the middle of the upper end surface of the outer plate 302, and the recess is a groove on the lower end surface of the second connecting structure 102 that is recessed inwardly corresponding to the protrusion 800, and the protrusion 800 is inserted into the groove of the recess 900.

[0070] 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.

[0071] like Figures 1 to 7 As shown, the first connecting structure 101 described in this embodiment is an extension portion extending upward from the end of the first side wall and being higher than the adjacent two side walls, and the end of the extension portion is folded toward the outside of the inner liner to form a horizontal flange structure, and 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.

[0072] In this embodiment, 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 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.

[0073] 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 planar 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 planar portion 205 and a first bent portion 1002 corresponding to the first curved portion 206, and 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.

[0074] Furthermore, the upper edge of the outer plate 302 extends toward the inner side of the inner liner body 200 to form a first horizontal plane, and the middle position of the first horizontal plane 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 to form a vertical connecting surface. The vertical connecting surface is flush with the outer surface of the outer plate 302 and is located in the same plane. The lower end of the vertical connecting surface extends toward the inner side of the inner liner body 200 to form a second horizontal plane, and the middle position of the second horizontal plane is recessed inward to form a groove that matches the convex portion 800. The first horizontal plane and the second horizontal plane are tightly fitted, and the convex portion 800 is engaged in the groove.

[0075] Preferably, the convex portion 800 is a through protrusion disposed at a middle position on the first horizontal plane, and the concave portion 900 is a through groove disposed at a middle position on the second horizontal plane.

[0076] In one embodiment, the inner liner body 200 also includes a second side wall opposite to the first side wall, 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, the third connecting structure 103 is a second flange structure formed by folding the end of the second side wall, further, the two side walls adjacent to the first side wall also include a second curved portion 207 transitionally connected to the second side wall, 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 opening end of the inner liner body 200 and extending to the outside of the inner liner.

[0077] 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.

[0078] In another embodiment, if Figure 7 As shown, the difference between this embodiment and the above embodiment is that the second connecting structure 102 is a flange structure integrally arranged 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, and the side edge of the first horizontal flange 700 extends vertically downward to form the longitudinal flange 701. 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.

[0079] Furthermore, the upper edge of the outer plate 302 extends toward the inner side of the inner liner body 200 to form a first horizontal plane, the middle position of the first horizontal plane protrudes upward to form a convex portion 800, and the middle position of the second horizontal flange 702 is recessed inward to form a groove matching the convex portion 800, the first horizontal plane and the second horizontal flange 702 are tightly fitted, and the convex portion 800 is engaged in the groove.

[0080] Preferably, the convex portion 800 is a through protrusion disposed at a middle position on the first horizontal plane, and the concave portion 900 is a through groove disposed at a middle position on the second horizontal plane.

[0081] Embodiment 3

[0082] like Figure 4As shown, the second connection structure 102 and the outer plate 302 body are an integrally formed structure. Specifically, the second connection structure 102 is a connection flange formed by bending and stretching from the end of the outer plate 302 body and is integrally provided with the outer plate 302 body. The outer plate 302 body is used to cover the outer side of the liner body 200 and plays a decorative role. The connection flange is used to connect the outer plate 302 and the liner body 200. The present invention adopts a structure in which the second splicing component 102 and the outer plate 302 body are an integral structure. When the liner body 200 and the outer plate 302 are connected, the connection between the intermediate connection structure and the outer plate 302 is reduced, and the welding process is reduced.

[0083] Embodiment 4

[0084] The liner body 200 is made like this. Fig.11 As shown, the inner tank body of the dishwasher in the present invention is formed by splicing at least two parts, and the splicing positions between the parts are located on a plane, which greatly reduces the difficulty of the welding process during the assembly process and improves the assembly efficiency.

[0085] The dishwasher inner tank body 200 of the present invention is composed of three parts, including a first part, a second part and a third part. The second part and the third part are located on both sides of the first part, parallel to the stretching direction of the dishwasher, and the splicing position of the second part / third part and the first part is located on a plane.

[0086] The first component includes a bottom plate 204 of the inner container body, and a front plate 201 and a rear plate 202 connected to the bottom plate 204 and perpendicular to the stretching direction of the dishwasher.

[0087] The second component / third component includes a side panel 203 parallel to the stretching direction of the dishwasher, and the second component / third component also includes an extension portion connected to the side panel 203 and bent toward the opposite side panel, and the extension portion is connected to the first component, and the extension portion and the side panel 203 are smoothly connected through a rounded structure. The setting of the extension portion avoids the splicing position of the second component / third component and the first component on a curved surface and makes the splicing position on a plane, thereby reducing the difficulty of welding.

[0088] The second component / third component is integrally formed by stamping, and the extension portion includes a first extension surface 2031 located on the bottom surface of the side panel 203 and a second extension surface 2032 located on the side surface of the side panel 203, the first extension surface 2031 and the second extension surface 2032 are connected by a rounded structure, and the second extension surface 2032 extends straight toward the opposite side panel, the first extension surface 2031 is connected to the bottom plate 204 in the first splicing component, and the second extension surface 2032 is connected to the front plate 201 / rear plate 202 in the first splicing component.

[0089] like Fig.12As shown, it is a front view of the inner tank body 200 of the present invention. The dishwasher is stretched by a slide rail. The side panel 203 of the second component / third component includes a recessed surface 2033. The recessed surface 2033 is a receiving portion recessed toward the center of the inner tank. The receiving portion can be installed with a slide rail to facilitate stretching the dishwasher and taking and placing tableware in the dishwasher.

[0090] Embodiment 5

[0091] like Fig.13 As shown, a dishwasher inner tank is provided, including a bottom plate 204 and a side plate assembly, wherein the bottom plate 204 and the side plate assembly are an integral piece, and the side plate assembly is bent and spliced ​​to form a side wall of the dishwasher.

[0092] 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.

[0093] Preferably, the bottom plate 204 has a plurality of edges, and the side plate assembly includes 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 204 to jointly form a side wall of the dishwasher.

[0094] In the above scheme, through the scheme of the present invention, inner tanks of different shapes can be manufactured respectively, each plate body is bent relative to the bottom plate 204, and two adjacent plates are spliced ​​to form the side wall of the annular dishwasher.

[0095] Preferably, the bottom plate 204 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 204 to form a side wall of the dishwasher, and the opposite sides of two adjacent plates are in contact and connected using a set process.

[0096] Preferably, the opposite sides of two adjacent plates are in contact and welded together.

[0097] Preferably, 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 via the connecting portion.

[0098] Preferably, the connection portion includes a flange arranged on one side edge of the plate body, and after the two plates are bent relative to the bottom plate 204, the side edge of one plate body is attached to the flange of the adjacent plate body.

[0099] In the above scheme, through the design of the flange structure, two adjacent plates can be fitted and positioned, which is convenient for fixing by welding, and the flange has support and limit functions on the other plate, which facilitates the welding process.

[0100] The flange is formed by bending the edge of the plate toward the plane where the adjacent plate is located. When the inner container includes four plates, the flange is formed by vertically bending the edge of the plate. The bending direction can be toward the side of the plate spliced ​​with it, or away from the side of the plate spliced ​​with it.

[0101] Preferably, the inner liner includes two first plate bodies 8001 arranged on opposite sides of the bottom plate 204, and the other two plate bodies of the inner liner are second plate bodies 8002. The bottoms of the two first plate bodies 8001 are provided with recessed surfaces 2033 / 2035 extending along the length direction of the plate bodies and recessed in the direction of bending of each plate body. The flanges are provided on both side edges of the first plate body 8001. After each plate body is bent relative to the bottom plate 204, the edges on both sides of the two second plate bodies 8002 are attached to the flanges.

[0102] Preferably, the contour lines of the edges on both sides of the second plate 8002 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.

[0103] Preferably, the first plate body 8001 is stamped on one side connected to the bottom plate 204 to form a recessed surface 2033 / 2035 that gradually narrows toward the bottom plate 204 and is connected to the bottom plate 204, and the second plate body 8002 is stamped on one side connected to the bottom plate 204 to form a recessed surface 2033 / 2035 that gradually narrows toward the bottom edge and is connected to the bottom plate 204. After each plate body is bent, the edges of the recessed surfaces 2033 / 2035 of two adjacent plate bodies are in contact and connected to each other. 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 tops 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, simplifying the splicing process.

[0104] In addition, this embodiment also provides a method for manufacturing the inner container of the dishwasher in the first embodiment, comprising the following steps:

[0105] S1. Punch out an integrated bottom plate 204 and side plate assembly on the plate according to the size of the inner liner;

[0106] S2, bending each plate body in the side plate assembly to form a side wall of the dishwasher;

[0107] S3. Connect and fix the plates through a connection process.

[0108] Preferably, a quadrilateral bottom plate 204 and four plate bodies respectively connected to the four sides of the bottom plate 204 are punched out of the plate, and the plate bodies are vertically bent to the same side of the bottom plate 204 so that the plate bodies are spliced ​​to form the side wall of the dishwasher, and the two opposite side edges of two adjacent plate bodies are welded.

[0109] Preferably, in step S1 , a concave surface 2033 is punched out at the bottom of two plates on both sides of the bottom plate 204 along the bending direction of the plates.

[0110] Alternatively, in step S1, a convex profile is punched on two plates on both sides of the bottom plate 204 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.

[0111] Embodiment 6

[0112] The splicing parts of the inner tanks of the dishwashers are connected by an overlapping structure. In this embodiment, the overlapping structure is connected by a surface-to-surface overlapping manner, which is conducive to the splicing and positioning of the splicing parts.

[0113] Preferably, among two adjacent splicing components, one side edge of the splicing of one splicing component and the other splicing component 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 splicing component 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.

[0114] In the above solution, the first connection surface 250 and the second connection surface 251 are welded after being fitted. The first connection surface 250 can be obtained by bending the edge of the corresponding splicing component at a certain angle, and the second connection surface 251 can be obtained by bending the edge of another splicing component at a certain angle, wherein the bending angle ensures that the first connection surface 250 and the second connection surface 251 are parallel, so that the surface-to-surface fitting can be achieved.

[0115] like Fig. 9 As shown, the first connecting surface 250 and the second connecting surface 251 are both formed by vertically bending the edges of the corresponding splicing components.

[0116] Preferably, the first connecting surface 250 and the second connecting surface 251 are welded and fixed after being attached to each other.

[0117] 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 inner tank of the dishwasher. 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.

[0118] like Fig.10As shown, in another scheme, in two adjacent splicing parts, the edge of one side where one splicing part is spliced ​​with the other splicing part is provided with a first connecting surface 250 that bends and extends toward the outer side of the inner liner, and the edge of the corresponding side of the other splicing part is provided with a second connecting surface 251 that bends and extends toward the outer side of the inner liner, and the length of the second connecting surface 251 is greater than the length of the first connecting surface 250. After the first connecting surface 250 and the second connecting surface 251 are bonded, the part 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 to form a three-layer bonding surface, which is bent toward the outer surface of any splicing part and bonded to the outer surface. In this scheme, a three-layer bonding surface is formed, the overlapping structure is relatively stable, and there is no protruding end surface, which will not cause damage to other parts.

[0119] like Figure 8 As shown, in another embodiment, among two adjacent splicing parts, the edge of one side where one splicing part is spliced ​​with the other splicing part is formed with a first connecting surface 250 which is recessed toward the outside of the inner liner, and the edge of the corresponding side of the other splicing part is the second connecting surface 251, and the edge of the corresponding side of the splicing part is attached to the first connecting surface 250.

[0120] In the above solution, among two adjacent splicing components, the edge of one splicing component is recessed to form the first connecting surface 250 , while the edge of the other splicing component is not changed and is directly overlapped on the first connecting surface 250 .

[0121] Preferably, the edge of a splicing component is first bent toward the side away from the inner liner to form a bending section 252, and the bending section 252 is bent again to form a first connecting surface 250 parallel to the edge of another splicing component. The height of the bending section 252 in a 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 splicing components transition smoothly, thereby making the internal structure of the inner liner smooth.

[0122] Embodiment 7

[0123] An inner liner structure is provided, such as Fig.14 As shown, it includes a bottom wall and a side wall, and the side wall includes 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 side wall. A notch is provided on the first splicing portion 2012 and / or the second splicing portion 2013, and the notch forms an installation port 2011 for placing a detergent adding device after the first splicing portion 2012 and the second splicing portion 2013 are spliced.

[0124] Specifically, the first splicing portion 2012 includes a first splicing surface formed by vertically connecting the first side and the first bottom side, the second splicing portion 2013 includes a second splicing surface formed by vertically connecting the second side and the second bottom side, the first side and / or the second side are provided with a notch, 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, and the notch forms an installation port 2011 for placing a detergent adding device during splicing, and the size of the notch can be set to different sizes and shapes according to the size of the detergent adding device.

[0125] For example, a notch may be opened on the first side of the first joining surface, and a notch may be opened at a corresponding position of the second side. When the first joining surface and the second joining surface are joined, the middle notch portion of the first side and the middle notch portion of the second side form an installation opening 2011 for placing a detergent adding device.

[0126] As an alternative to the above-mentioned scheme, 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.

[0127] In this embodiment, an installation opening 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 processes but also saves costs.

[0128] In this embodiment, the bottom wall has an upwardly open accommodating space, the open end of the bottom wall is connected to the bottom edge of the side wall to form the inner tank body, and the bottom edge of the side wall is located above the water level in the inner tank to minimize water leakage.

[0129] 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 200 .

[0130] Preferably, a sealing ring matching the shape and size of the mounting opening 2011 is provided between the fixing plate and the detergent adding device, so as to increase the sealing performance between the detergent adding device and the inner tank body 200 .

[0131] Embodiment 8

[0132] The side wall is formed by bending and splicing at least one rectangular stainless steel metal plate, one end of the plate is a first splicing surface, and the other end is a second splicing surface. The side wall can also be formed by bending and splicing two or more stainless steel metal plates. This embodiment takes the side wall formed by bending one stainless steel metal plate as an example.

[0133] Specifically, the rectangular plate is bent four times to form the side wall of the inner liner, and the first splicing surface and the second splicing surface at both ends of the plate are spliced ​​to form the front wall of the inner liner. The splicing seam 2014 is located on the front wall surface of the inner liner. In this embodiment, the splicing seam 2014 of the side wall of the inner liner is located on a plane, which avoids special-shaped welding, reduces the difficulty of welding, and effectively prevents the problem of cracking that is easy to cause when the stainless steel inner liner is stretched.

[0134] Embodiment 9

[0135] like Fig.15 As shown, this embodiment provides a dishwasher inner tank, which can be pushed in / out and arranged in the shell or bracket of the dishwasher, including a bottom plate 204, two side plates 203 extending along the movement direction of the inner tank 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, and the two side plates 203 are provided with a concave surface 2033 concave toward the inside of the inner tank.

[0136] In the present invention, the inner liner is provided with a recessed surface 2033 for avoiding the slide rail, which is beneficial to the expansion of the inner liner. In addition, the recessed surface 2033 is provided on the side plate 203, which has little stretching and does not affect the structural strength of the inner liner.

[0137] The bottoms of the two side plates 203 are both recessed toward the interior of the inner container to form the recessed surface 2033 .

[0138] Preferably, the concave surface 2033 is formed by punching at the bottom of the side plate 203 facing the inner part of the inner container.

[0139] Preferably, the recessed surface 2035 / 2033 includes a horizontal bending surface 20331 formed by first bending the bottom of the side panel 203 from top to bottom toward the inside of the inner liner, and a vertical bending surface 20332 formed by bending vertically downward at the end of the horizontal bending surface 20331, and the horizontal bending surface 20331 and the vertical bending surface 20332 are connected and transitioned by a smooth arc surface.

[0140] Preferably, a first extension surface 2031 that is bent and extended toward the bottom plate 204 is provided at the bottom of the vertical bending surface 20332 , and the first extension surface 2031 is connected to the corresponding side of the bottom plate 204 .

[0141] In the above scheme, the bottom edge of the horizontal bending surface 20331 is bent toward the bottom to form the first extension surface 2031. The first extension surface 2031 is preferably in the same plane as the bottom plate 204. In this way, the splicing position of the bottom plate 204 and the lower edge of the side plate 203 is on the plane, not at the corner, which facilitates the splicing and alignment of the splicing parts, and moves the welding position to the plane, reducing the difficulty of welding.

[0142] Preferably, the two sides of the side plate 203 are respectively provided with second extension surfaces 2032 that are bent and extended toward the front plate 201 and the rear plate 202 , and the second extension surfaces 2032 are connected to the corresponding front plate 201 or the rear plate 202 .

[0143] In the above scheme, both sides of the side panel 203 are bent toward the front panel 201 and the rear panel 202 to form the second extension surface 2032. The side where the second extension surface 2032 is spliced ​​with the front panel 201 or the rear panel 202 is in the same plane as the front panel 201 or the rear panel 202, thereby avoiding the corners and facilitating welding and fixation.

[0144] In the present invention, the design of the second extension surface 2032 prevents splicing on the recessed surface 2035 / 2033, and the splicing position is transferred to the plane, thereby simplifying the welding process.

[0145] In another embodiment, the two side plates 203 are respectively stamped with convex profiles 2034 in the opposite direction to the opposite side plate 203 , and a concave surface 2035 is formed on the side plate 203 at the bottom of the profile 2034 .

[0146] In this solution, the concave surface 2035 is formed because after the side plate 203 is stamped with the press 2034, the bottom of the side plate 203 is a concave surface 2035 relative to the press 2034. The stamping press 2034 forms a convex structure, which expands the internal space of the liner. In this solution, the concave surface 2035 is different from the above-mentioned concave surface 2033 in that the concave surface 2035 has a small curvature because the press area is large. If the stamped concave surface 2035 has a larger curvature, it is easy to over-stretch.

[0147] The middle part of the side plate 203 is punched toward the outside of the inner container, forming a large-area convex profile 2034 in the middle part of the side plate 203, thereby facilitating the expansion of the inner container.

[0148] Preferably, the cross-sectional profile of the recessed surface 2035 longitudinally cut through a vertical plane perpendicular to the side plate 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.

[0149] 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.

[0150] The above is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment, it is not used to limit the present invention. Any technician familiar with this patent can make some changes or modify the technical contents suggested above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the solution of the present invention.

Claims

1. A dishwasher inner tank structure, comprising an inner tank body, a door body connected to the inner tank body and an outer panel, characterized in that: The inner tank body comprises a first side wall, a first connection structure for connecting to the door body is arranged on the first side wall, and second connection structures for connecting to the outer plate are arranged on two side walls adjacent to the first side wall respectively; The first connection structure is a first flange structure formed by bending the end of the first side wall; The second connection structure is a connection flange; The two opposite side walls of the liner body are respectively integrally connected with connecting flanges; Both side walls adjacent to the first side wall include a plane portion and a first curved portion transitionally connected to the first side wall, and the connecting flange includes a straight portion corresponding to the plane portion and a first bent portion corresponding to the first curved portion; The end of the first bent portion of the connecting flange and the end of the first connecting structure are spliced ​​into an integral structure; The liner body also includes a second side wall opposite to the first side wall, the second side wall is a planar plate-shaped structure, the second side wall is provided with a third connecting structure, and the third connecting structure is a second flange structure formed by folding the end of the second side wall; Both side walls adjacent to the first side wall further include a second curved portion transitionally connected to the second side wall, and the connecting flange further includes a second bent portion connected to the corresponding second curved portion; The connecting flange is spliced ​​with the first connecting structure and the third connecting structure to form a connecting structure located at the opening end of the inner tank body and extending toward the outer side of the inner tank.

2. The dishwasher inner tank structure according to claim 1, characterized in that: 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 to form a horizontal flange structure.

3. The dishwasher inner tank structure according to claim 1 or 2, characterized in that: The first side wall is a planar plate-shaped structure, and the first connecting structure is formed by folding the end of the planar plate-shaped structure portion.

4. The dishwasher inner tank structure according to claim 1, characterized in that: The upper end surfaces of the connecting flange, the first connecting structure and the third connecting structure are flush and located on the same plane.

5. A molding process for the inner tank structure of a dishwasher as claimed in any one of claims 1 to 4, characterized in that: The molding process comprises the following steps: (1) Making the liner body by stamping, stretching, or splicing according to the liner size; (2) The opening end of the liner body is bent relative to the end of the side wall to form a first connecting structure and a third connecting structure, and a connecting flange is integrally formed by stamping and bending; (3) Connecting flanges are placed on the unbent side wall ends of the opening end of the liner body, and the two ends of the connecting flanges are respectively connected to the two ends of the first connecting structure and the third connecting structure, so that the opening end of the liner body has a connecting structure extending toward the outside of the liner through a connecting process; (4) After step (3) is completed, an inner liner is formed. If you need to continue making the inner liner, repeat steps (1)-(4).

6. The forming process of the inner tank structure of a dishwasher according to claim 5, characterized in that: The connection process in step (3) is welding.

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