Corner protection piece and dish washing machine

The corner guard addresses air leakage and sharp edge issues in dishwashers by integrating a flexible sealing portion with convex ribs and a rigid mounting portion, enhancing sealing and safety in dishwashers.

CN222172076UActive Publication Date: 2024-12-17NINGBO FOTILE KITCHEN WARE CO LTD
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Patent Information

Application Number
CN202420276196.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-02-04
Publication Date
2024-12-17
Estimated Expiration
2034-02-04

AI Technical Summary

Technical Problem

Cabinet dishwashers experience air leakage at the lower left and right corners of the door, leading to corrosion, and the sharp edges of the inner tank pose a risk of cuts, with existing solutions like door seal strips and rubber edge guards being unstable, difficult to install, and prone to falling off.

Method used

A corner guard with a mounting portion and a sealing portion, featuring a flexible sealing surface with convex ribs, is integrated between the door body and inner tank to prevent air leakage and shield sharp edges, using a rigid mounting portion for stability and a flexible sealing portion for effective sealing.

Benefits of technology

The corner guard effectively seals gaps to prevent air leakage, reducing cabinet corrosion and ensuring safety by shielding sharp edges, with improved mounting strength and reliability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a corner protection part and a dish washing machine. The corner protection part is applied to the dish-washing machine and located between a door body and an inner container of the dish-washing machine, the corner protection part comprises an installation part and a sealing part, the sealing part is fixedly connected with the installation part, the sealing part is provided with a sealing face facing the door body, the sealing face is provided with a first sealing rib in a protruding mode, and the sealing part is made of flexible materials. According to the corner protection piece provided in the scheme, the installation part and the sealing part which are connected are arranged, the fit clearance of the inner container and the door body is sealed, air leakage is prevented, corrosion to a cabinet caused by corner air leakage is avoided, the installation part serves as an installation framework of the sealing part made of flexible materials, the installation strength of the sealing part is improved, and the service life of the cabinet is prolonged. In addition, the sharp edge of the edge of the inner container is shielded through the mounting part, and the safety protection effect is achieved.
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Description

Technical Field

[0001] The present application relates to the technical field of kitchen appliances, and in particular to a corner protection member and a dishwasher. Background Art

[0002] At present, cabinet dishwashers are becoming more and more popular in China. Users have higher requirements for the drying performance of dishwashers and are more concerned about the user experience. When the dishwasher is drying, the fan and the air intake and exhaust system are used to ventilate the high-humidity air inside and let dry air in. During the ventilation process, the lower left and right corners of the door will leak air, which may corrode the cabinet. In addition, the sheet metal edges at the lower left and right corners of the inner tank are sharp, which may cause cuts to your hands.

[0003] To address the air leakage at the left and right lower corners of the door, the general approach is to adjust the length and structure of the door seal strips. However, changing the door seal strips to solve the air leakage problem is unstable and cannot completely solve the air leakage problem. To address the problem of cutting hands on the edge of the liner, rubber edge guards are usually used to improve it. However, the rubber edge guards are difficult to produce and install and are easy to fall off. Summary of the invention

[0004] Based on this, it is necessary to provide a corner protection piece and a dishwasher to address the problems of air leakage and the risk of cutting hands at the lower left and right corners of the dishwasher.

[0005] A corner guard is applied to a dishwasher and is located between a door body and an inner tank of the dishwasher. The corner guard comprises a mounting portion and a sealing portion. The sealing portion is fixedly connected to the mounting portion, and the sealing portion is provided with a sealing surface arranged toward the door body. A first sealing rib is convexly provided on the sealing surface. The sealing portion is made of a flexible material.

[0006] In one embodiment, the first sealing rib is arc-shaped, and the center of the first sealing rib coincides with the rotation axis of the door body.

[0007] In one of the embodiments, the sealing surface is further provided with a second sealing rib, the distance that the second sealing rib protrudes from the sealing surface is smaller than the distance that the first sealing rib protrudes from the sealing surface, and the second sealing rib extends in a horizontal direction.

[0008] In one embodiment, the mounting portion includes a connecting rod, a mounting bottom portion and a mounting middle portion connected to the connecting rod and spaced apart up and down, the mounting bottom portion and the mounting middle portion both extend in a horizontal direction, and the sealing portion is connected to an end surface of the mounting middle portion disposed toward the door body.

[0009] In one embodiment, the connecting rod is provided with an abutment surface extending up and down and used to abut the inner tank, the mounting bottom and the mounting middle both extend horizontally from the abutment surface and are respectively located on both sides of the abutment surface, and the abutment surface is a contoured surface adapted to the inner tank.

[0010] In one of the embodiments, an installation groove is concavely formed on the end surface of the sealing portion facing the installation middle portion, and the installation middle portion is at least partially embedded in the installation groove.

[0011] In one embodiment, the end surface of the installation middle portion facing the sealing portion is recessed with a socket, the sealing portion is convexly provided with a connecting column extending toward the installation middle portion and adapted to the socket, and the connecting column is at least partially embedded in the socket.

[0012] In one of the embodiments, a connecting hole is provided at one end of the mounting bottom away from the connecting rod.

[0013] In one embodiment, the mounting portion is made of a rigid material.

[0014] In one embodiment, the mounting portion and the sealing portion are an integral structure.

[0015] A dishwasher comprises an inner tank and a door body, wherein the inner tank is provided with an opening, the door body covers the inner tank and can rotate relative to the inner tank, and further comprises the corner protection member described in any of the above embodiments, the mounting portion is connected to the bottom end of the side wall of the inner tank, and the sealing portion is clamped between the inner tank and the door body.

[0016] The corner protection member provided in the above scheme prevents air leakage by setting a connected mounting part and a sealing part, and seals the matching gap between the inner tank and the door body, thereby avoiding corrosion of the cabinet caused by air leakage at the corners. The mounting part is used as the mounting skeleton of the sealing part made of flexible material to improve the mounting strength of the sealing part and the reliability of the corner sealing. The mounting part also shields the sharp edges of the inner tank to play a role in safety protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of the structure of a dishwasher in one embodiment of the present application.

[0018] Figure 2 for Figure 1 Schematic diagram of the exploded structure of the center liner and corner guards.

[0019] Figure 3 for Figure 1 Schematic diagram of the installation of the center corner guard.

[0020] Figure 4 for Figure 1Schematic diagram of the installation of the center corner guard and the inner liner.

[0021] Figure 5 for Figure 2 Schematic diagram of the structure of the central corner protection part Figure 1 .

[0022] Figure 6 for Figure 5 Schematic diagram of the exploded structure of the center corner guard.

[0023] Figure 7 for Figure 5 Schematic diagram of the structure of the central corner protection part Figure 2 .

[0024] Description of reference numerals:

[0025] 100, dishwasher; 110, liner; 111, sharp edge; 112, second component; 113, first component; 120, door body; 130, corner guard; 131, mounting portion; 1311, connecting rod; 1312, mounting bottom; 1313, mounting middle; 1314, plug hole; 1315, connecting hole; 1316, abutting surface; 1317, mounting top; 132, sealing portion; 1321, sealing surface; 1322, first sealing rib; 1323, second sealing rib; 1324, mounting groove; 1325, connecting column; 140, sealing strip; 150, outer shell. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0027] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0028] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0029] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated 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, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0030] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0031] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0032] See also Figure 1 , Figure 1The structural schematic diagram of a dishwasher 100 in an embodiment of the present application is shown. A dishwasher 100 provided in an embodiment of the present application includes a shell, an inner tank 110 and a door 120. The inner tank 110 is located in the shell, and the inner tank 110 is provided with an opening. The door 120 is rotatably connected to the shell 150 and covers the inner tank 110 so as to be able to rotate relative to the inner tank 110. In this embodiment, the door 120 is rotatably connected to the bottom of the shell and the rotation axis of the door 120 is arranged in the horizontal direction. And as Figure 1 As shown, the dishwasher 100 also includes a sealing strip 140 connected to the inner tank 110. The sealing strip 140 is an inverted U-shaped structure and is arranged along the two side walls and the top wall of the inner tank 110. When the door body 120 covers the inner tank 110, that is, the door body 120 is in a closed state, the door body 120 abuts against the sealing strip 140 to seal the gap between the door body 120 and the inner tank 110 to avoid air leakage.

[0033] like Figure 2 As shown, the liner 110 includes a first component 113 and a second component 112 arranged up and down, wherein the second component 112 includes the bottom surface of the liner 110 and the bottom of the side wall of the liner 110, and the first component 113 includes the top wall of the liner 110 and the middle and upper part of the side wall, as shown in FIG. Figure 2 As shown, the thickness of the first component 113 and the second component 112 is relatively small, and the edges exposed to the outside are sharp edges 111. In this embodiment, the sharp edges 111 of the inner liner 110 refer to the end surfaces of both sides of the inner liner 110 facing the outside.

[0034] The dishwasher 100 also includes a corner protection member 130 in any of the following embodiments. The corner protection member 130 is located between the door body 120 and the inner tank 110 of the dishwasher 100. As shown in FIG3 , the corner protection member 130 is located at the bottom of the two side walls of the inner tank 110 to seal the corners and protect the sharp edges 111 of the inner tank 110.

[0035] Combination Figures 5 to 7 In one embodiment of the present application, a corner protection member 130 is provided. The corner protection member 130 is applied to the dishwasher 100 and is located between the door 120 and the inner tank 110 of the dishwasher 100. Figure 1 In the illustrated embodiment, there are two corner protection members 130 , and the two corner protection members 130 are located at the bottom end of the side wall of the inner liner 110 , that is, at the lower corner of the inner liner 110 .

[0036] like Figure 5 As shown, the corner protection member 130 includes a mounting portion 131 and a sealing portion 132. Figure 1 As shown, the mounting portion 131 is connected to the bottom end of the side wall of the inner container 110, acts on the bottom end of the side wall of the inner container 110, that is, the lower corner of the inner container 110, and blocks the sharp edge 111 of the inner container 110 to prevent the sharp edge 111 from cutting. Figure 1 As shown, the sealing portion 132 is clamped between the inner container 110 and the door body 120 to seal the matching gap between the inner container 110 and the door body 120 to prevent air leakage.

[0037] In this embodiment, the sealing portion 132 is fixedly connected to the mounting portion 131. In one embodiment, the mounting portion 131 and the sealing portion 132 are an integral structure. Optionally, the mounting portion 131 and the sealing portion 132 are integrally formed by injection molding. In other embodiments, the sealing portion 132 and the mounting portion 131 may also be fixedly connected by welding or the like.

[0038] In this embodiment, the sealing portion 132 is made of a flexible material, such as a rubber material in a resin material, so as to be able to have an interference fit with the door body 120 to seal the gap between the door body 120 and the liner 110. In one embodiment, the mounting portion 131 is made of a rigid material. In this embodiment, the mounting portion 131 is also made of a resin material, but the mounting portion 131 is made of a different material from the sealing portion 132. The material of the mounting portion 131 can be a thermosetting plastic. The mounting portion 131 not only has the function of preventing the sharp edge 111 from cutting, but also serves as the skeleton of the mounting portion 131 to ensure that the seal does not fail for a long time.

[0039] like Figure 5 As shown, the sealing portion 132 is provided with a sealing surface 1321 disposed toward the door body 120, and the sealing surface 1321 is convexly provided with a first sealing rib 1322, and the first sealing rib 1322 is in interference fit with the door body 120. The first sealing rib 1322 reduces the friction surface between the door body 120 and the sealing portion 132 from the sealing surface 1321 to the surface area of ​​the first sealing rib 1322 when the door body 120 rotates, thereby reducing the friction force. When the door body 120 rotates relative to the inner liner 110, the door body 120 rotates relative to the first sealing rib 1322. When the door body 120 is located at the position of the sealing portion 132, the first sealing rib 1322 is in interference fit with the door body 120, so that the first sealing rib 1322 and the sealing portion 132 are squeezed by the door body 120 and the inner liner 110, thereby realizing that the sealing portion 132 seals the gap between the door body 120 and the inner liner 110.

[0040] like Figure 5 As shown, in one embodiment, the first sealing rib 1322 is arc-shaped, and the center of the first sealing rib 1322 coincides with the rotation axis of the door body 120. The arc path of the first sealing rib 1322 is the same as the operating trajectory of the door body 120 switch. Compared with the horizontally arranged sealing rib, the relative friction area between the two when the two move relative to each other is smaller, so as to reduce the friction between the two when the door body 120 moves relative to the first sealing rib 1322, thereby extending the life of the sealing portion 132.

[0041] like Figure 5As shown, in one embodiment, the sealing surface 1321 is further provided with a second sealing rib 1323, the second sealing rib 1323 extends in the horizontal direction, the distance the second sealing rib 1323 protrudes from the sealing surface 1321 is less than the distance the first sealing rib 1322 protrudes from the sealing surface 1321, and the second sealing rib 1323 is used in the case where the first sealing rib 1322 fails to further ensure the sealing effect. In this embodiment, the number of the second sealing ribs 1323 is two, such as Figure 1 As shown, the two second sealing ribs 1323 are respectively located at the top and bottom ends of the sealing surface 1321 .

[0042] Combination Figure 6 As shown, Figure 6 Schematic diagram of the exploded structure of the corner protection member 130. It should be noted that: Figure 6 The middle mounting portion 131 and the sealing portion 132 are decomposed only to show the structures of the two, and do not indicate that the mounting portion 131 and the sealing portion 132 are separate structures. In one embodiment, the mounting portion 131 includes a connecting rod 1311, a mounting bottom portion 1312 connected to the connecting rod 1311 and spaced apart from each other, and a mounting middle portion 1313. Figure 6 As shown, the installation bottom 1312 and the installation middle portion 1313 both extend in the horizontal direction to protrude from the connecting rod 1311 in the horizontal direction, and the sealing portion 132 is connected to the end surface of the installation middle portion 1313 disposed toward the door body 120 .

[0043] like Figure 6 As shown, in one embodiment, a connecting hole 1315 is provided at one end of the mounting bottom 1312 away from the connecting rod 1311 for mounting the corner protection member 130 to the inner tank 110 .

[0044] Combination Figure 7 As shown in one embodiment, the connecting rod 1311 is provided with an abutting surface 1316 extending up and down and used to abut the inner container 110, and the mounting bottom 1312 and the mounting middle portion 1313 are both extended from the abutting surface 1316 in the horizontal direction and are respectively located on both sides of the abutting surface 1316, so that Figure 4 As shown, when the abutting surface 1316 abuts against the sharp edge 111 of the inner liner 110 , the installation bottom 1312 and the installation middle portion 1313 are respectively located inside and outside the inner liner 110 , thereby limiting the position of the installation portion 131 .

[0045] like Figure 2As shown, the first component 113 and the second component 112 of the inner liner 110 are respectively enclosed with the outer shell 150 to form two separated accommodating spaces, and the mounting portion 131 also includes a mounting top 1317 connected to the top of the connecting rod 1311. When the mounting portion 131 is connected to the inner liner 110, the mounting top 1317 and the mounting bottom 1312 are both located on the side of the inner liner 110 facing the outer shell 150, and the mounting top 1317 and the mounting bottom 1312 are respectively located in the two accommodating spaces to improve the limiting effect, and the mounting middle portion 1313 and the sealing portion 132 are located on the side of the inner liner 110 away from the outer shell 150.

[0046] Combination Figure 2 As shown, the abutting surface 1316 is a contoured surface adapted to the sharp edge 111 of the inner liner 110 . Since the inner liner 110 has an outwardly convex extension portion, the connecting rod 1311 and the abutting surface 1316 are correspondingly L-shaped structures.

[0047] like Figure 6 As shown, in one embodiment, the sealing portion 132 is recessed with an installation groove 1324 on the end face facing the installation middle portion 1313, and the installation middle portion 1313 is at least partially embedded in the installation groove 1324. In this embodiment, the sealing portion 132 covers the other end faces of the installation middle portion 1313 except the end face facing away from the door body 120 to increase the welding strength between the sealing portion 132 and the installation portion 131.

[0048] like Figure 6 As shown, in one embodiment, a socket 1314 is recessed on the end surface of the installation middle portion 1313 facing the sealing portion 132, and the sealing portion 132 is convexly provided with a connecting column 1325 extending toward the installation middle portion 1313 and adapted to the socket 1314. In this embodiment, the connecting column 1325 extends from the bottom of the installation groove 1324, and the connecting column 1325 is at least partially embedded in the socket 1314. Preferably, the connecting column 1325 is completely embedded in the socket 1314 to increase the welding strength between the sealing portion 132 and the installation portion 131.

[0049] The corner protection member 130 provided in the above scheme prevents air leakage by setting a connected mounting portion 131 and a sealing portion 132, and seals the matching gap between the inner liner 110 and the door body 120, thereby avoiding corrosion of the cabinet caused by corner air leakage. The mounting portion 131 is used as a mounting frame of the sealing portion 132 made of flexible material to improve the mounting strength of the sealing portion 132 and the reliability of the corner sealing. The mounting portion 131 also shields the sharp edge 111 of the inner liner 110 to play a role in safety protection.

[0050] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0051] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A corner protection member, which is applied to a dishwasher and is located between a door and an inner tank of the dishwasher, characterized in that: The corner protection piece includes a mounting portion and a sealing portion, wherein the sealing portion is fixedly connected to the mounting portion, and the sealing portion is provided with a sealing surface arranged toward the door body, the sealing surface is convexly provided with a first sealing rib, and the sealing portion is made of a flexible material.

2. The corner protection member according to claim 1, characterized in that: The first sealing rib is arc-shaped, and the center of the first sealing rib coincides with the rotation axis of the door body.

3. The corner protection member according to claim 1, characterized in that: The sealing surface is also provided with a second sealing rib protruding from the sealing surface. The distance that the second sealing rib protrudes from the sealing surface is smaller than the distance that the first sealing rib protrudes from the sealing surface. The second sealing rib extends in a horizontal direction.

4. The corner protection member according to claim 1, characterized in that: The mounting portion includes a connecting rod, a mounting bottom portion and a mounting middle portion connected to the connecting rod and spaced apart up and down, the mounting bottom portion and the mounting middle portion both extend in a horizontal direction, and the sealing portion is connected to an end surface of the mounting middle portion disposed toward the door body.

5. The corner protection member according to claim 4, characterized in that: The connecting rod is provided with an abutting surface extending up and down and used to abut the inner container. The mounting bottom and the mounting middle both extend horizontally from the abutting surface and are respectively located on both sides of the abutting surface. The abutting surface is a contoured surface adapted to the inner container.

6. The corner protection member according to claim 4, characterized in that: An installation groove is concavely formed on the end surface of the sealing portion facing the installation middle portion, and the installation middle portion is at least partially embedded in the installation groove.

7. The corner protection member according to claim 4 or 6, characterized in that: The end surface of the installation middle portion facing the sealing portion is concavely provided with an insertion hole, and the sealing portion is convexly provided with a connecting column extending toward the installation middle portion and adapted to the insertion hole, and the connecting column is at least partially embedded in the insertion hole.

8. The corner protection member according to claim 4, characterized in that: A connecting hole is provided at one end of the mounting bottom away from the connecting rod.

9. The corner protection member according to claim 1, characterized in that: The mounting portion is made of rigid material.

10. The corner protection member according to claim 1 or 9, characterized in that: The mounting portion and the sealing portion are an integrated structure.

11. A dishwasher, characterized in that: It includes an inner liner and a door body, wherein the inner liner is provided with an opening, the door body covers the inner liner and can rotate relative to the inner liner, and also includes a corner protection piece as described in any one of claims 1 to 10, the mounting portion is connected to the bottom end of the side wall of the inner liner, and the sealing portion is clamped between the inner liner and the door body.