A dishwasher

Abstract

This utility model relates to the field of household appliance technology and discloses a dishwasher, including a dishwasher body, a door body, and a hinge; the hinge is provided with a hook portion having an inner groove; a pull cord is connected to the hook portion via a connector; the connector is provided with a shaft portion, which is rotatably accommodated within the inner groove; a limiting portion is provided on the outer side wall of the hook portion near the pull cord; the connector is also provided with a limiting arm; the limiting arm and the limiting portion are configured such that: during the process of inserting the shaft portion into the inner groove, the limiting arm undergoes elastic deformation due to compression by the limiting portion to pass over the limiting portion; and after the shaft portion is accommodated in the inner groove, the limiting arm resets and interferes with the limiting portion to prevent the shaft portion from dislodging from the inner groove. The aforementioned dishwasher, through the unidirectional passing over and reverse locking cooperation of the upper limiting portion of the connector and the upper limiting portion of the hinge, effectively restricts the connector from dislodging from the hinge hook portion, prevents the pull cord from dislodging, and achieves reliable connection and convenient installation.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, and in particular to a dishwasher. Background Technology

[0002] As a household appliance that liberates productivity, dishwashers are gradually becoming a standard feature in modern family kitchens due to their efficient and hygienic dishwashing capabilities.

[0003] Among the many key components of a dishwasher, the door's opening, closing, and free-suspension functions are crucial for the convenience and safety of daily operation. The core structure that enables these functions is the hinge and pull cord system. Traditional dishwasher doors are typically connected to the cabinet via hinges, and a pull cord is used to achieve door balance and cushioning.

[0004] However, existing dishwasher door hinge and pull cord systems still face some challenges in practical applications, especially regarding the way the pull cord is secured. Currently, the pull cord is typically connected by snapping into a hook on the hinge. While this connection method may be convenient during initial installation, the hinge and pull cord system continuously bears the weight of the door and external impacts during the frequent opening and closing of the dishwasher door. Under these conditions, the existing pull cord connection method may not be secure enough. Over time, friction, wear, or repeated stress between the pull cord and the hook may cause the pull cord to accidentally detach from the hook. Utility Model Content

[0005] In view of the problems pointed out in the background art, this application provides a dishwasher that effectively restricts the shaft portion of the connector from disengaging from the inner groove of the hinge hook portion by the cooperation of the unidirectional overtaking and reverse locking of the upper limit portion of the connector and the upper limit portion of the hinge, thereby preventing the pull rope from coming out and achieving reliable connection and convenient installation.

[0006] To achieve the above-mentioned objectives, the present invention employs the following technical solution: In some embodiments of this application, a dishwasher is provided, comprising: The dishwasher itself; The door is rotatably connected to the dishwasher body; A hinge for connecting the door and the dishwasher body, the hinge having a hook with an inner groove; A tension spring, one end of which is connected to the dishwasher body; A pull rope, one end of which is connected to the other end of the tension spring; A connector is provided to the other end of the pull rope; the connector is provided with a shaft portion that is rotatably accommodated within the inner groove; A limiting part is provided on the outer wall of the hook near the pull rope; The connector is also provided with a limiting arm; The limiting arm and the limiting part are configured as follows: During the process of inserting the shaft into the inner groove, the limiting arm is squeezed by the limiting part and undergoes elastic deformation to pass over the limiting part; And after the shaft portion is received in the inner groove, the limiting arm resets and interferes with the limiting portion to prevent the shaft portion from dislodging from the inner groove.

[0007] In some embodiments of this application, the hook extends from one end of the hinge; the hook includes a bottom wall, a first side wall, and a second side wall, which together define an inner groove for accommodating the shaft; wherein the first side wall is connected to the main body of the hinge, and the limiting portion is integrally formed at the connection between the second side wall and the bottom wall. This solution clearly defines the specific structure of the hook, providing a clear structural basis for the setting of the limiting portion, making the overall structure clearer and more stable.

[0008] In some embodiments of this application, the limiting portion includes: a guide surface connected to the second sidewall, configured to guide and compress the limiting arm to cause elastic deformation when the shaft portion is inserted into the inner groove; and a blocking surface intersecting the guide surface and connected to the bottom wall; the blocking surface is substantially perpendicular to the guide surface or forms an acute angle with it. This solution, by defining the limiting portion as a specific geometric structure with a guide surface and a blocking surface, structurally ensures a one-way locking effect of "easy entry, difficult exit" for the limiting arm, greatly enhancing the reliability of the connection.

[0009] In some embodiments of this application, the outer wall surface of the bottom wall has an outwardly convex arc surface; after the shaft portion is accommodated in the inner groove, the free end of the limiting arm is disposed adjacent to the arc surface of the bottom wall. This design allows the free end of the limiting arm to fit against or approach the arc-shaped bottom wall after passing the limiting portion, providing reasonable space for the movement and positioning of the limiting arm and ensuring the smooth realization of its function.

[0010] In some embodiments of this application, the guide surface of the limiting part is smoothly connected to the second side wall; the blocking surface of the limiting part is smoothly connected to the bottom wall. This solution, through a smooth transition connection, effectively avoids stress concentration, improves the overall strength and durability of the hinge hook structure, and extends its service life.

[0011] In some embodiments of this application, a protrusion is provided on at least one side wall forming the inner groove, near the opening of the inner groove, protruding towards the interior of the inner groove. This protrusion causes the width of the opening to be smaller than the width of the interior of the inner groove. This design adds a preliminary anti-detachment guarantee in addition to the main anti-detachment structure, allowing the shaft to engage with the hook during installation. Even before the limiting arm has passed the limiting part, the shaft is less likely to slip out accidentally, improving installation convenience and providing double structural protection.

[0012] In some embodiments of this application, the inner groove includes a receiving portion for accommodating the shaft portion and an opening communicating with the receiving portion; wherein the width of the opening is smaller than the width of the receiving portion. This solution, through a gourd-mouth structure, uses a narrow opening to elastically clamp the shaft portion, achieving a first-level anti-detachment function; the structure is simple and effective.

[0013] In some embodiments of this application, the connector includes two side plates spaced apart from each other, and the shaft is connected between the two side plates. In the assembled state, the hook of the hinge is accommodated within the space formed by the two side plates. This design defines the specific structure of the connector, and by covering the hook from both sides with the two side plates, the connection is more stable, preventing unnecessary twisting or shaking of the connector at the hook.

[0014] In some embodiments of this application, the connector further includes a base connecting the two side plates, and the limiting arm extends integrally from the base and is located between the two side plates. The integrally formed design of the limiting arm ensures the integrity and elasticity of the structure, while its location between the side plates provides protection for the limiting arm.

[0015] In some embodiments of this application, the limiting arm has a fixed end and a free end, and the free end is provided with a guide slope; the guide slope is configured to contact and slide along the limiting part when the shaft part is inserted into the inner groove. This solution, by providing a guide slope at the end of the limiting arm to cooperate with the guide surface of the limiting part, allows the two to slide smoothly when in contact, reducing installation resistance and making the installation process more effortless and smooth.

[0016] Compared with the prior art, the advantages and positive effects of this utility model are: In the above embodiments, the dishwasher, by providing a limiting arm on the connector and a limiting part on the hook of the hinge, effectively restricts the shaft of the connector from coming out of the inner groove through the cooperation of the limiting part and the one-way overtaking and reverse locking of the limiting part, thereby preventing the pull rope from coming out, and achieving reliable connection and convenient installation.

[0017] Other features and advantages of this utility model will become clearer after reading the detailed embodiments of this utility model in conjunction with the accompanying drawings. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A schematic diagram of a dishwasher according to some embodiments is shown; Figure 2 A schematic diagram of the pull cord, connector, and hinge in a dishwasher according to some embodiments is shown. Figure 3 A diagram showing the state of a dishwasher according to some embodiments when the connector and hinge hook are not installed; Figure 4 This diagram shows the state of the dishwasher according to some embodiments after the connector and hinge hook are assembled. Figure 5 This diagram illustrates the engagement between the connector and the limiting portion of the hinge hook in a dishwasher according to some embodiments. Figure 1 The diagram shows the state of the door when it is closed. Figure 6 This diagram illustrates the engagement between the connector and the limiting portion of the hinge hook in a dishwasher according to some embodiments. Figure 2 The diagram shows the state of the door when it is open. Figure 7 A schematic diagram of the hinge structure in a dishwasher according to some embodiments is shown; Figure 8 It shows Figure 7 A magnified view of a portion of the image; Figure 9 A schematic diagram of the hinge hook in a dishwasher according to some other embodiments is shown; Figure 10 A schematic diagram of the structure of a connector in a dishwasher according to some embodiments is shown; Figure 11 A structural schematic diagram of a connector in a dishwasher according to some embodiments is shown from another perspective; Explanation of reference numerals in the attached figures: 100 - Dishwasher body; 200-Gate Body; 300-Hinge; 310-Hook; 311-Bottom wall; 312-First side wall; 313-Second side wall; 314-Limiting part; 315-Protrusion; 316-Inner groove; 400 - Connector; 410 - Shaft; 420 - Limiting arm; 430 - Base; 440 - Side plate; 500-Pull rope. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0021] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0022] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0023] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0024] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0025] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0026] like Figures 1-11 As shown, some embodiments of this application provide a dishwasher.

[0027] See Figure 1 The dishwasher's overall structure includes a dishwasher body 100 for holding and washing dishes, and a door 200 rotatably connected to the dishwasher body 100. The user opens the door 200, places the dishes in the dish rack inside the dishwasher body 100, then closes the door 200 and starts the washing program.

[0028] The door 200 opens, closes, and stops via a balancing mechanism. Specifically, the balancing mechanism includes a hinge 300, a spring assembly, and a pull cord 500. One end of the hinge 300 is fixedly connected to the door 200, and the middle part of the hinge 300 is connected to the frame of the dishwasher body 100, forming a pivot for the rotation of the door 200.

[0029] A spring assembly (not shown) is provided on the bottom or side of the dishwasher body 100, and the spring assembly is mounted on the dishwasher body 100. One end of the spring assembly is connected to one end of the pull cord 500. The other end of the pull cord 500 is connected to a connector 400.

[0030] The connector 400 is provided with a shaft 410, which needs to be connected to a hook 310 on the hinge 300 to transmit the tension of the spring assembly to the hinge 300 to balance the weight of the door 200.

[0031] The improvement of this application lies in the connection structure between the connector 400 and the hook 310 of the hinge 300, which solves the problems of connection reliability and installation convenience.

[0032] like Figure 5 As shown, specifically, the hinge 300 is provided with a hook portion 310 having an inner groove 316. After assembly, the shaft portion 410 of the connector 400 is rotatably accommodated within the inner groove 316.

[0033] In order to achieve the anti-detachment function, this application provides a limiting part 314 on the outer side wall of the hook part 310 of the hinge 300 near the pull rope 500.

[0034] Accordingly, a resilient limiting arm 420 is also provided on the connector 400. The limiting arm 420 is typically integrally formed with the body of the connector 400, and the material can be an engineering plastic with elastic recovery capability. The limiting arm 420 may include a fixed end connected to the body of the connector 400 and a free end.

[0035] This structure simplifies the installation process. For example... Figure 3 As shown, during the process of inserting the shaft 410 into the inner groove 316, the free end of the limiting arm 420 will first contact the limiting part 314.

[0036] As the shaft 410 continues to be pushed into the groove, the limiting part 314 will exert a compressive force on the limiting arm 420, causing the elastic limiting arm 420 to bend and deform.

[0037] When the top of the limiting arm 420 passes the highest point of the limiting part 314, it will spring back to its original position due to its own elastic restoring force.

[0038] At this time, as Figure 4 As shown, after the shaft portion 410 has been fully accommodated in the inner groove 316, the side of the reset limiting arm 420 interferes with a blocking surface of the limiting portion 314.

[0039] This interference relationship forms a mechanical lock, similar to an inverted structure. When the pull rope 500 generates a force that attempts to disengage the shaft 410 from the inner groove 316 for any reason, the limiting arm 420 will be blocked by the limiting part 314, thereby effectively restricting the shaft 410 from coming out of the inner groove 316 and preventing the pull rope 500 from coming out.

[0040] For example, in Figure 5The door 200 shown is in the closed state, and in... Figure 6 When the door 200 is in the open state, the limiting arm 420 cannot pass the highest point of the limiting part 314, effectively preventing the shaft part 410 from coming out of the inner groove 316.

[0041] According to one installation method, workers do not need to manually press the connector 400 into the hinge 300. During assembly on the production line, workers only need to place the shaft portion 410 of the connector 400 at the entrance of the hook portion 310 of the hinge 300.

[0042] Subsequently, during the opening of the dishwasher door 200, the door's rotation, driven by its own weight, causes the hinge 300 to rotate. This rotation of the hinge 300 brings the shaft 410 into the inner groove 316, during which the limiting arm 420 automatically passes over the limiting part 314, completing the installation. This installation method eliminates the need for workers to apply force, improving production efficiency and reducing labor intensity.

[0043] The dishwasher described above, by providing a limiting arm 420 on the connector 400 and a limiting part 314 on the hook part 310 of the hinge 300, achieves convenient installation and reliable connection through the cooperation of the one-way overtaking and reverse locking of the limiting part and the limiting part 314, effectively restricting the shaft part 410 of the connector 400 from coming out of the inner groove 316, thereby preventing the pull rope 500 from coming out.

[0044] In some embodiments of this application, the hook 310 is a structure that extends integrally from one end of the hinge 300.

[0045] Specifically, see Figure 8 The hook portion 310 specifically includes a bottom wall 311, a first side wall 312, and a second side wall 313. These three walls together enclose and define an inner groove 316 for accommodating the shaft portion 410.

[0046] The first sidewall 312 is directly connected to the main body of the hinge 300, providing a supporting foundation for the structure.

[0047] The limiting part 314 is integrally formed at the connection between the second side wall 313 and the bottom wall 311, that is, at the corner of the hook part 310, and protrudes from the second side wall 313 and the bottom wall 311. This design makes the limiting part 314 accurately positioned and structurally strong, providing a guarantee for subsequent limiting.

[0048] In other embodiments, the limiting portion 314 may have other shapes in addition to protruding from the second side wall 313 and the bottom wall 311.

[0049] In some embodiments of this application, the geometry of the limiting portion 314 is further designed. The limiting portion 314 is designed to have two functional surfaces.

[0050] The first surface is guide surface a. This guide surface a is connected to the second sidewall 313 of the hook portion 310. During installation, the guide surface a first contacts the limiting arm 420. Its surface is configured to guide and compress the limiting arm 420, causing it to undergo elastic deformation.

[0051] The second surface is the blocking surface b. This blocking surface b intersects with the guide surface a and is connected to the bottom wall 311 of the hook portion 310. The blocking surface b is used to block the limiting arm 420 after it has passed the limiting portion 314.

[0052] To achieve an effective locking effect, the angle between the blocking surface b and the guiding surface a is designed to be approximately perpendicular or form an acute angle. The perpendicular or acute-angled blocking surface b provides reliable blocking, making it difficult for the limit arm 420 to reverse over.

[0053] In some embodiments of this application, in order to provide movement and accommodation space for the limiting arm 420, the bottom wall 311 of the hook 310 is designed to have an outwardly protruding outer wall surface, and correspondingly, its inner wall surface is a concave arc surface.

[0054] After the shaft portion 410 is fully accommodated in the inner groove 316, the free end of the limiting arm 420, which has elastically deformed and returned to its original position, is positioned adjacent to the concave arc surface of the bottom wall 311. This proximity relationship can mean that the free end of the limiting arm 420 abuts against the arc surface of the bottom wall 311, or it can mean that a gap is maintained between the two.

[0055] In some embodiments of this application, to enhance the strength of the structure, the guide surface a of the limiting part 314 and the second sidewall 313 are connected by a smooth transition.

[0056] Meanwhile, the blocking surface b of the limiting part 314 is also connected to the bottom wall 311 with a smooth transition. This smooth transition design can disperse stress and avoid fatigue fracture caused by stress concentration during long-term use, thereby improving the reliability of the hook part 310 structure.

[0057] In some embodiments of this application, a structure with dual anti-detachment function is also provided. In addition to the second anti-detachment structure formed by the limiting arm 420 and the limiting part 314 described above, a first anti-detachment structure is also provided.

[0058] The first layer of anti-detachment structure is located at the opening of the inner groove 316. Specifically, as shown... Figure 8As shown, on at least one sidewall constituting the inner groove 316, near the opening at its top, there is a protrusion 315 protruding into the inner groove 316. The protrusion 315 is provided such that the width of the opening of the inner groove 316 is smaller than the width inside the inner groove 316. The cross-sectional shape of the protrusion 315 can be triangular, trapezoidal, arc-shaped, etc.

[0059] When installing the shaft 410, a small force is required to open the narrow opening formed by the protrusion 315, and then the shaft 410 falls into the wide inner groove. This prevents the shaft 410 from accidentally slipping out during use, forming the first line of defense and creating a double insurance with the structure of the limit arm 420.

[0060] In other embodiments of this application, such as Figure 9 As shown, the inner groove 316 of the hook 310 is designed as a gourd mouth structure, that is, the inner groove 316 includes a receiving part for stably accommodating the shaft 410, and an opening that communicates with the receiving part for the shaft 410 to enter; the width W1 of the opening is smaller than the width W2 of the receiving part.

[0061] That is, the width W1 of the opening is designed to be slightly smaller than the diameter of the shaft portion 410 on the connector 400, while the width W2 of its receiving portion is larger than the diameter of the shaft portion 410. During installation, the shaft portion 410 can utilize the elasticity of the material to open the opening and engage with the receiving portion, thereby achieving a stable installation.

[0062] The hook 310 adopts a gourd-mouth structure, which not only ensures stable installation, but also has low processing difficulty and low dimensional accuracy requirements, making it easy to manufacture.

[0063] In some embodiments of this application, see Figure 10 and Figure 11 This is the overall structure of connector 400.

[0064] The connector 400 includes two opposing and spaced-apart side plates 440. The shaft 410 is laterally connected between the two side plates 440.

[0065] After assembly, the hook 310 of the hinge 300 is accommodated within the internal space formed by the two side plate portions 440.

[0066] This design allows the hook 310 to be held from both sides by the connector 400, enhancing the lateral stability of the connection and preventing the connector 400 from tilting or twisting on the hook 310.

[0067] In some embodiments of this application, the connector 400 includes a base 430 connecting the two side plate portions 440 in addition to the two side plate portions 440, thereby forming an integral groove structure.

[0068] The flexible limiting arm 420 extends integrally from the base 430 and is situated entirely within the space between the two side plate portions 440.

[0069] The limiting arm 420 and the connecting piece 400 are integrally formed, which facilitates manufacturing. At the same time, the design of the limiting arm 420 being located between the two side plates 440 allows the side plates 440 on both sides to protect the limiting arm 420 and prevent it from being impacted by lateral external forces during use.

[0070] In some embodiments of this application, a threading hole may also be provided on the base 430 for fixed connection with the pull rope 500.

[0071] In some embodiments of this application, to facilitate the installation of the connector 400, a guide slope c is provided on the top or outer surface of the free end of the limiting arm 420.

[0072] The guide ramp c is configured such that, during installation, when the limiting arm 420 contacts the limiting part 314, the guide ramp first contacts the guide surface of the limiting part 314. The contact between the two ramps (or the ramp and the curved surface) allows the contact point to slide smoothly along a predetermined trajectory, thereby reducing the force required for installation and making the installation process more effortless.

[0073] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

[0074] For ease of explanation, the above description has been provided in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or to limit the embodiments to the specific forms disclosed above. Various modifications and variations can be obtained based on the above teachings. The selection and description of the above embodiments are for the purpose of better explaining the principles and practical applications, thereby enabling those skilled in the art to better utilize the described embodiments and various different variations of embodiments suitable for specific use considerations.

Claims

1. A dishwasher, comprising: The dishwasher itself; The door is rotatably connected to the dishwasher body; A hinge for connecting the door and the dishwasher body, having a hook with an inner groove; A spring assembly is connected to the dishwasher body; A pull cord, one end of which is connected to the spring assembly; A connector is provided to the other end of the pull rope; the connector is provided with a shaft portion that is rotatably accommodated within the inner groove; Its features are, A limiting part is provided on the outer wall of the hook near the pull rope; The connector is also provided with a limiting arm; The limiting arm and the limiting part are configured as follows: During the process of inserting the shaft into the inner groove, the limiting arm is squeezed by the limiting part and undergoes elastic deformation to pass over the limiting part; And after the shaft portion is received in the inner groove, the limiting arm resets and interferes with the limiting portion to prevent the shaft portion from dislodging from the inner groove.

2. The dishwasher according to claim 1, characterized in that The hook extends from one end of the hinge; the hook includes a bottom wall, a first side wall and a second side wall, the bottom wall, the first side wall and the second side wall together defining an inner groove for receiving the shaft. The first sidewall is connected to the main body of the hinge, and the limiting part protrudes and is integrally formed at the connection between the second sidewall and the bottom wall.

3. The warewash machine of claim 2, wherein, The limiting part includes: A guide surface, connected to the second sidewall, is configured to guide and compress the limiting arm to elastically deform it when the shaft is inserted into the inner groove; and A blocking surface that intersects with the guiding surface and connects to the bottom wall; the blocking surface is substantially perpendicular to the guiding surface or forms an acute angle with it.

4. The warewash machine of claim 3 wherein, The outer wall surface of the bottom wall has an outwardly convex arc surface; after the shaft portion is accommodated in the inner groove, the free end of the limiting arm is disposed adjacent to the arc surface of the bottom wall.

5. The warewashing machine of claim 3, wherein, The guide surface of the limiting part is smoothly connected to the second side wall; the blocking surface of the limiting part is smoothly connected to the bottom wall. 6.The dish washer of claim 1, wherein On at least one side wall forming the inner groove, near the opening of the inner groove, there is a protrusion protruding toward the interior of the inner groove, such that the width of the opening is smaller than the width of the interior of the inner groove.

7. The warewash machine of claim 1, wherein, The inner groove includes a receiving portion for accommodating the shaft portion, and an opening communicating with the receiving portion; wherein the width of the opening is smaller than the width of the receiving portion. 8.The dish washer of claim 1, wherein The connector includes two side plates spaced apart from each other, and the shaft is connected between the two side plates. In the assembled state, the hook of the hinge is accommodated in the space formed by the two side plates.

9. The warewash machine of claim 8, wherein, The connector also includes a base that connects the two side plates, and the limiting arm extends integrally from the base and is located between the two side plates. 10.The dish washer of claim 9, wherein The limiting arm has a fixed end and a free end, and the free end is provided with a guide slope; the guide slope is configured to contact the limiting part and slide along it when the shaft part is inserted into the inner groove.

Images