Door body limiting device of dish washing machine and dish washing machine

Abstract

The invention discloses a door body limiting device of a dish-washing machine and the dish-washing machine, and the door body limiting device of the dish-washing machine comprises an automatic door opening assembly which is used for opening a door body of the dish-washing machine; the door balance assembly comprises a door balance elastic piece, the door balance elastic piece is connected with a machine body of the dish washing machine and the door body, and the door balance elastic piece is used for keeping the door body at the current opening angle; and when the automatic door opening assembly opens the door body to a preset door opening angle, the limiting assembly is suitable for limiting a hinge of the door body, so that the opening angle of the door body is limited to the preset door opening angle. According to the door body limiting device of the dish washing machine, the risk that the door body falls can be reduced, safety is good, the opening angle of the door body can be limited to the preset door opening angle after the door is automatically opened, and the drying effect is good.

Description

Technical Field

[0001] This invention relates to the field of dishwasher technology, and more specifically, to a dishwasher door limiting device and a dishwasher. Background Technology

[0002] After a dishwasher automatically washes the dishes, because the inside of the dishwasher is a closed environment, if the dishes are not removed for a long time, the residual water on the surface of the dishes can cause problems such as mold and bacterial growth. The automatic door opening technology in dishwashers is used in the drying process. After the dishwasher automatically washes the dishes, the door automatically opens to a certain angle, allowing air to circulate inside and outside the dishwasher to expel water vapor and achieve the purpose of drying the dishes.

[0003] In related technologies, dishwasher doors are prone to falling off quickly, which could damage the dishwasher or even injure the user, posing a safety hazard. Summary of the Invention

[0004] The present invention aims to at least solve one of the technical problems existing in the prior art. Therefore, one object of the present invention is to provide a door limiting device for a dishwasher, which prevents the dishwasher door from falling off quickly, thus improving safety.

[0005] Another object of the present invention is to provide a dishwasher having the above-mentioned door limiting device.

[0006] A door limiting device for a dishwasher according to an embodiment of the present invention includes: an automatic door opening assembly for opening the door of the dishwasher; a door balancing assembly including a door balancing elastic member connected to the body of the dishwasher and the door, the door balancing elastic member for maintaining the door at a current opening angle; and a limiting assembly adapted to limit the hinge of the door when the automatic door opening assembly opens the door to a predetermined opening angle, thereby limiting the opening angle of the door to the predetermined opening angle.

[0007] The door limiting device of the dishwasher according to the present invention can reduce the risk of the door falling off by limiting the hinge through the limiting component, which has good safety. The automatic door opening component and the limiting component can limit the opening angle of the door to a predetermined opening angle after automatic opening, which has a good drying effect.

[0008] In addition, the door limiting device of the dishwasher according to the above embodiments of the present invention may also have the following additional technical features:

[0009] According to some embodiments of the present invention, the limiting assembly includes a mating member and a limiting component. The mating member is movable relative to the body and has a mating groove for accommodating the hinge. During the opening of the door to the predetermined opening angle, the mating member moves in a first direction toward the limiting component. The hinge rotates about a rotation axis in a first rotation direction, which intersects the extension direction of the hinge's rotation axis. The mating member includes a limiting mating portion. When the opening angle of the door is greater than or equal to the predetermined opening angle, the limiting component abuts against the limiting mating portion. When the opening angle of the door is less than the predetermined opening angle, the limiting component separates from the limiting mating portion.

[0010] According to some embodiments of the present invention, the limiting component includes a limiting elastic member and a limiting member, the limiting member being used to abut against the limiting mating portion, and the limiting elastic member being used to apply an elastic force to the limiting member in the first direction toward the limiting mating portion.

[0011] According to some embodiments of the present invention, the door limiting device includes a mounting box, the mounting box having a first stop portion and a second stop portion spaced apart along the first direction, the limiting member being movably disposed between the first stop portion and the second stop portion, the limiting elastic member being located on the side of the limiting member opposite to the limiting mating portion and abutting between the limiting member and the first stop portion, and in the state where the mating member is separated from the limiting member, the limiting member abuts against the second stop portion.

[0012] According to some embodiments of the present invention, when the opening angle of the door is greater than the set opening angle, the hinge separates from the mating groove, and the set opening angle is greater than or equal to the predetermined opening angle.

[0013] According to some embodiments of the present invention, the door limiting device further includes a first track and a second track that are connected. The extension direction of the first track is parallel to the first direction, and the extension direction of the second track intersects the first direction. The second track is connected to one end of the first track and is located on the side of the first track opposite to the hinge. The mating member has a first sliding part and a second sliding part. The first sliding part is installed on the first track and is adapted to slide towards the second track during the opening of the door. The second sliding part is slidable along the first track and the second track. In the case where the opening angle of the door is less than or equal to a predetermined opening angle, the second sliding part is located on the first track; in the case where the opening angle of the door is greater than the predetermined opening angle, the second sliding part is located on the second track.

[0014] According to some embodiments of the present invention, the groove sidewall of the mating groove includes a first groove wall and a second groove wall opposite to each other. During the process of the door opening to the predetermined opening angle, the first groove wall and the second groove wall are arranged sequentially along the movement direction of the mating member. When the opening angle of the door is less than or equal to the predetermined opening angle, the projection portions of the first groove wall, the second groove wall and the hinge along the first direction overlap. When the opening angle of the door is greater than the predetermined opening angle, the projections of the second groove wall and the hinge along the first direction are offset.

[0015] According to some embodiments of the present invention, when the second sliding part is located on the first track, the limiting fitting part extends obliquely in the first direction toward the side facing the second track and close to the limiting member; when the second sliding part is located on the second track, the limiting fitting part extends in the horizontal direction.

[0016] According to some embodiments of the present invention, the door limiting device includes a mounting box, the mounting box including a box body and a cover body, the box body having a first groove, the cover body having a second groove, the cover body covering the box body so that the first groove and the second groove cooperate to form the first track and the second track, the first sliding part and the second sliding part each including protrusions located on both sides of the mating part, the protrusions on both sides being movably inserted into the first groove and the second groove respectively.

[0017] According to some embodiments of the present invention, the door limiting device further includes a door lock assembly for locking the door and the machine body. In the height direction of the dishwasher, the automatic door opening assembly and the hinge are arranged spaced apart. The automatic door opening assembly includes a housing and a drive component and a push rod installed in the housing. The housing is installed in one of the door and the machine body. The drive component is connected to one end of the push rod, and the other end of the push rod is adapted to extend out of the housing to apply a pushing force to the other of the door and the machine body to drive the door lock assembly to unlock.

[0018] The dishwasher according to an embodiment of the present invention includes a body, a door, and a door limiting device according to an embodiment of the present invention. The door includes a door body and a hinge. The door body is rotatably connected to the body via the hinge, and the hinge has a mating protrusion adapted to engage with the limiting device.

[0019] According to some embodiments of the present invention, the limiting component includes a mating member that is movable relative to the body, the mating member having a mating groove for receiving the mating protrusion, and the movement path of the mating member being at least partially within the rotation radius of the mating protrusion.

[0020] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0022] Figure 1 This is a partial structural diagram of a dishwasher according to an embodiment of the present invention, wherein the door is in a closed state;

[0023] Figure 2 This is a partial structural diagram of a dishwasher according to an embodiment of the present invention, wherein the door is in the open state;

[0024] Figure 3 yes Figure 2 The middle frame shows a magnified view of part B.

[0025] Figure 4 yes Figure 1 The middle frame shows a magnified view of a portion of point A;

[0026] Figure 5 This is a partial structural diagram of a dishwasher according to an embodiment of the present invention, wherein the door opening angle is greater than the set door opening angle;

[0027] Figure 6 This is an exploded view of a door limiting device according to an embodiment of the present invention.

[0028] Figure label:

[0029] Dishwasher 1000; Body 200; Door 300; Door Body 310; Hinge 320; Mating Protrusion 3201;

[0030] Door limiting device 110;

[0031] Limiting component 120;

[0032] Mating part 10; mating groove 11; first groove wall 111; second groove wall 112; first sliding part 121; second sliding part 122; protrusion 123; limiting mating part 13;

[0033] Mounting box 30; box body 31; first groove 311; first rib 312; cover 32; first track 331; second track 332; first stop 341; second stop 342;

[0034] Limiting component 40; limiting elastic component 41; limiting component 42; guide groove 421;

[0035] Door balancing assembly 50; door balancing elastic element 51; pull rope 52; guide wheel 53. Detailed Implementation

[0036] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0037] In the description of this invention, it should be understood that the terms "length," "upper," "lower," "front," "rear," "left," "right," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" 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 invention 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 invention.

[0038] In the description of this invention, "first feature" and "second feature" may include one or more of the features, "multiple" means two or more, "above" or "below" the second feature may include the first and second features being in direct contact, or the first and second features being in contact through another feature between them, and "above," "over," and "on top" the second feature may include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0039] The door limiting device 110 of a dishwasher 1000 according to an embodiment of the present invention is described below with reference to the accompanying drawings.

[0040] Reference Figures 1-6 As shown, the door limiting device 110 of the dishwasher 1000 according to an embodiment of the present invention may include: an automatic door opening assembly, a door balancing assembly 50 and a limiting assembly 120.

[0041] Specifically, the automatic door opening assembly is used to open the door 300 of the dishwasher 1000, allowing air to circulate inside and outside the dishwasher 1000, which facilitates the drying of the dishes inside the dishwasher 1000.

[0042] The door balancing assembly 50 includes a door balancing elastic element 51, which connects the body 200 and the door 300 of the dishwasher 1000. The door balancing elastic element 51 is used to maintain the door 300 at its current opening angle. The door balancing elastic element 51 can be a resilient component such as a tension spring.

[0043] After the door 300 is opened, the door balancing elastic element 51 is in a stretched state, providing a pulling force to the door 300. This balances the weight of the door 300 with the elastic force of the door balancing elastic element 51, allowing the door 300 to maintain its current opening angle. This facilitates balanced hovering of the door 300 at any opening angle without consuming electricity, thus reducing energy consumption. The structure is simple and low-cost, simplifying the structure of the dishwasher 1000 and reducing production costs. Furthermore, when closing the door, only the weight of the door 300 needs to be overcome, enabling quick and convenient operation.

[0044] In some embodiments, such as Figures 1-2 As shown, the door balancing assembly 50 also includes a guide wheel 53 and a pull rope 52 connected to the door balancing elastic member 51. The pull rope 52 and the guide wheel 53 can realize the reversal of the door balancing assembly 50, which helps to reduce the space occupied by the door balancing assembly 50.

[0045] When the automatic door opening assembly opens the door to a predetermined opening angle by 300 degrees, such as Figures 2-3 As shown, the limiting component 120 can limit the hinge 320 of the door 300 to restrict the opening angle of the door 300 to a predetermined opening angle. The limiting component 120 limits the hinge 320 in ways including but not limited to abutting or engaging the limiting component 120 and the hinge 320, so as to prevent the hinge 320 from continuing to rotate when the opening angle of the door 300 is the predetermined opening angle, and the door 300 will no longer open further to limit the opening angle of the door 300 to the predetermined opening angle.

[0046] The door 300 opens to a predetermined opening angle, allowing air circulation inside and outside the dishwasher 1000 to dry the dishes inside. In embodiments of the present invention, the predetermined opening angle can be flexibly set according to actual conditions such as the weight of the door 300 and drying requirements, or the limiting angle of the hinge 320 can be adjusted by changing the limiting component 120.

[0047] In some related technologies, after the dishwasher door opens automatically, the door balancing elastic element positions the door at a predetermined opening angle. However, after a period of use, the door balancing elastic element is prone to breakage, causing it to lose its support for the door. Once the door loses the support of the door balancing elastic element, it may fall rapidly, damaging the dishwasher or even injuring the user, resulting in personal injury or other safety accidents, posing a safety hazard.

[0048] Furthermore, both the door body and the door balancing elastic components can cause errors in the door opening angle. For example, different door weights lead to different automatic opening speeds, which in turn can result in differences in the opening angle. The door balancing elastic components have manufacturing tolerances and may undergo plastic deformation to some extent after a period of use, causing a deviation between the automatic opening angle and the predetermined opening angle. This prevents the door from being positioned at the predetermined opening angle, resulting in unstable drying data. For instance, if the automatic opening angle is greater than the predetermined angle, external dust, cockroaches, and flies can enter the dishwasher during the drying process, contaminating the cleaned dishes. Conversely, if the automatic opening angle is less than the predetermined angle, the drying time for the dishes is too long, leading to mold and bacterial growth on the surface of the dishes before they are completely dried, resulting in poor drying performance.

[0049] In this application, the door 300 is automatically opened by an automatic door opening assembly, and the opening angle of the door 300 is positioned at a predetermined opening angle by the door balancing elastic element 51 and the limiting assembly 120. During the automatic door opening process, even if the door balancing assembly 50 fails, such as if the door balancing elastic element 51 breaks, the limiting assembly 120 can limit the hinge 320 to prevent the door 300 from falling, reducing the risk of the door 300 falling rapidly and damaging the dishwasher 1000 or even injuring the user, thus providing good safety.

[0050] Furthermore, this application, through the automatic door opening component and the limiting component 120, can accurately position the opening angle of the door 300 at the predetermined opening angle, resulting in relatively stable drying data. Specifically, the automatic door opening component can maximize the opening angle of the door 300, ensuring that the opening angle of the door 300 after automatic opening will not be less than the predetermined opening angle. This minimizes the drying time required for the tableware, reduces the likelihood of mold or bacterial growth, and achieves a better drying effect.

[0051] The limiting component 120 limits the door 300 when it opens to a predetermined opening angle. Even if the door 300 tends to open further, the limiting component 120 can prevent the door 300 from opening further, so that the opening angle of the door 300 after automatic opening will not exceed the predetermined opening angle. This reduces the possibility of external dust, cockroaches and flies entering the dishwasher 1000 and helps protect the cleaned tableware.

[0052] According to the present invention, the door limiting device 110 of the dishwasher 1000 can limit the hinge 320 by limiting the limiting component 120, which can reduce the risk of the door 300 falling off and has good safety. The automatic door opening component and the limiting component 120 can limit the opening angle of the door 300 to a predetermined opening angle after automatic opening, which has a good drying effect.

[0053] The limiting component 120 may include a fixed component that is fixed relative to the hinge 320 to limit the hinge 320 when the opening angle of the door 300 is equal to a predetermined opening angle. The limiting component 120 may also include a movable component that is movable relative to the fixed component, so that the movable component cooperates with the hinge 320 to adapt to different movement angles of the hinge 320, making it convenient to open the door 300 to a state greater than the predetermined opening angle for taking out and putting in tableware.

[0054] For example, in some embodiments of the present invention, such as Figures 3-6 As shown, the limiting assembly 120 includes a mating member 10 and a limiting component 40. The mating member 10 is movable relative to the body 200, for example, in some embodiments, Figure 4 The mating part 10 shown moves upward to Figure 3 The state shown is as follows. Figure 3 The mating part 10 shown moves upward to Figure 5 The state shown.

[0055] The mating member 10 has a mating groove 11 for receiving the hinge 320 so that, during the opening of the door 300 to a predetermined opening angle, the mating member 10 is in a first direction (e.g., Figures 1-6 The hinge 320 moves upward toward the limiting member 40 in the direction shown in the up-down direction, and moves around the rotation axis in the first rotation direction (e.g., the vertical direction shown in the figure). Figures 3-5 Rotating in the counterclockwise direction shown, the first direction intersects the extension direction of the rotation axis of hinge 320.

[0056] The angle between the first direction and the extension direction of the rotation axis of the hinge 320 can be an acute angle, a right angle, or an obtuse angle, so that during the process of the door 300 opening to a predetermined opening angle, the mating part 10 can move in the first direction toward the limiting part 40, and the hinge 320 can rotate around the rotation axis in the first rotation direction. For example, in some embodiments, such as Figures 3-5 As shown, the first direction is parallel to the vertical direction, and the rotation axis of the hinge 320 is parallel to the horizontal direction of the dishwasher 1000, making the first direction perpendicular to the extension direction of the rotation axis of the hinge 320. The limiting component 40 is located on the upper side of the mating component 10, so that during the process of the door 300 opening to the predetermined opening angle, the mating component 10 moves upward, and the hinge 320 rotates counterclockwise around the rotation axis.

[0057] Here, the axis of rotation is the axis of rotation of hinge 320. Hinge 320 rotates around this axis of rotation in a first rotation direction, and the opening angle of door 300 gradually increases, thus opening the door. In some embodiments, the axis of rotation of hinge 320 is along a second rotation direction (e.g., Figures 3-5 As shown in the clockwise direction, the opening angle of the door 300 gradually decreases, thus closing the door. The first and second rotation directions are opposite.

[0058] During the process of opening the door 300 to the predetermined opening angle, the door can be opened manually to rotate the hinge 320, thereby driving the mating component 10 to move. Alternatively, the door can be opened automatically to move the mating component 10, thereby driving the hinge 320 to rotate; or the door can be opened automatically to rotate the hinge 320, thereby driving the mating component 10 to move. The movement of each component during the opening process is diverse.

[0059] The hinge 320 and the mating groove 11 can be a plug-in fit or a magnetic fit, etc. For example, in some embodiments, such as Figures 3-5 As shown, the rear end of the hinge 320 is a mating protrusion 3201. The mating protrusion 3201 can be inserted into the mating groove 11 to engage with the mating groove 11, so that the hinge 320 can move together with the mating part 10 during the engagement of the mating protrusion 3201 and the mating groove 11.

[0060] The mating component 10 includes a limiting mating part 13. When the opening angle of the door 300 is less than the predetermined opening angle, the limiting component 40 and the limiting mating part 13 are separated, and the hinge 320 can continue to rotate to increase the opening angle of the door 300 to the predetermined opening angle. When the opening angle of the door 300 is equal to the predetermined opening angle, the limiting component 40 abuts against the limiting mating part 13, so that the limiting component 40 limits the mating component 10 and thus limits the hinge 320, positioning the opening angle of the door 300 at the predetermined opening angle for easy drying of tableware.

[0061] When the opening angle of the door 300 is greater than the predetermined opening angle, the limiting component 40 abuts against the limiting mating part 13. For example, by manually opening the door, force can be applied to the door 300 to make the hinge 320 continue to rotate and the mating part 10 continue to move, and the opening angle of the door 300 will continue to increase from the predetermined opening angle to a value greater than the predetermined opening angle, making it convenient for the user to take out and put away tableware.

[0062] In some embodiments, such as Figures 4-6As shown, the limiting component 40 includes a limiting elastic member 41 and a limiting member 42. The limiting member 42 abuts against the limiting mating portion 13, and the limiting elastic member 41 applies a spring force towards the limiting mating portion 13 in a first direction to the limiting member 42. The limiting elastic member 41 can be a component such as a spring capable of elastic deformation. Correspondingly, the limiting elastic member 41 can be in a stretched state or a compressed state, so that the limiting elastic member 41 applies a spring force towards the limiting mating portion 13 in the first direction to the limiting member 42. For example, in some embodiments, such as... Figures 3-5 As shown, the limiting fitting part 13 is located below the limiting part 42, and the limiting elastic member 41 is in a compressed state to apply a downward elastic force to the limiting member 42.

[0063] When the opening angle of the door 300 is equal to the predetermined opening angle, the limiting engagement part 13 abuts against the limiting member 42, and the limiting elastic member 41 applies a spring force in the first direction toward the limiting engagement part 13 to the limiting member 42, preventing the engagement member 10 from continuing to move in the first direction toward the limiting member 40 (opposite to the direction of the spring force), and the opening angle of the door 300 no longer increases, thus positioning the opening angle of the door 300 at the predetermined opening angle. For example, in some embodiments, such as Figures 3-5 As shown, the limiting member 42 is located on the upper side of the limiting mating part 13. The limiting member 42 abuts against the limiting mating part 13. The limiting elastic member 41 applies a downward elastic force to the limiting member 42, preventing the mating part 10 from continuing to move upward.

[0064] With the door 300 open at a predetermined angle, manually opening the door causes the mating member 10 to continue moving towards the limiting member 40 in the first direction. The limiting elastic member 41 applies a spring force to the limiting member 42 in the first direction towards the limiting mating part 13. The limiting mating part 13 abuts against the limiting member 42, applying pressure to the limiting member 42 in the opposite direction to the spring force of the limiting elastic member 41. Manually opening the door causes the pressure of the limiting mating part 13 on the limiting member 42 to be greater than the spring force of the limiting elastic member 41 on the limiting member 42, causing the mating member 10 and the limiting member 42 to move in the opposite direction to the spring force of the limiting elastic member 41, allowing the door 300 to open to a position greater than the predetermined opening angle.

[0065] The limiting elastic member 41 allows the limiting member 42 to have a movement space in the first direction toward the limiting component 40, so that the limiting member 42 can move to adapt to the movement of the hinge 320 and the mating component 10. The limiting member 42 is not easily damaged by forcibly opening the door manually, and it is convenient to open the door 300 to a greater than the predetermined opening angle to take out and put in tableware.

[0066] In some embodiments, such as Figures 3-6As shown, the door limiting device 110 includes a mounting box 30. The mounting box 30 has a first stop portion 341 and a second stop portion 342 spaced apart along a first direction. A limiting member 42 is movably disposed between the first stop portion 341 and the second stop portion 342. A limiting elastic member 41 is located on the side of the limiting member 42 facing away from the limiting mating portion 13 and abuts against the limiting member 42 and the first stop portion 341, so that the limiting elastic member 41 is in a compressed state. When the mating portion 10 is separated from the limiting member 40, the limiting member 42 abuts against the second stop portion 342 to place the limiting member 42 between the limiting elastic member 41 and the second stop portion 342, so that the limiting elastic member 41 can apply an elastic force towards the limiting mating portion 13 in the first direction to the limiting member 42.

[0067] By limiting the limiting elastic member 41 and the limiting member 42 through the first stop part 341 and the second stop part 342, the limiting member 42 is located in a position that can abut against the mating member 10 when the door body 300 is opened to the predetermined opening angle, thereby limiting the hinge 320 by the mating member 10, improving the reliability of the limiting assembly 120 in limiting the hinge 320 when the door body 300 is opened to the predetermined opening angle.

[0068] In some embodiments, such as Figure 6 As shown, the mounting box 30 includes a box body 31 and a cover 32. The box body 31 has a first protruding rib 312 extending in the vertical direction, and the cover 32 has a second protruding rib extending in the vertical direction. The cover 32 covers the box body 31. The limiting member 42 has guide grooves 421 on its left and right sides, respectively. The guide grooves 421 on both sides are movably engaged with the first protruding rib 312 and the second protruding rib. The limiting member 42 is movably mounted to the first protruding rib 312 and the second protruding rib through the guide grooves 421, making the installation of the limiting member 42 more stable and improving the limiting effect on the mating member 10.

[0069] In some embodiments of the present invention, such as Figure 5 As shown, when the opening angle of the door 300 is greater than the set opening angle, the hinge 320 separates from the mating groove 11, and the set opening angle is greater than or equal to the predetermined opening angle. However, when the opening angle of the door 300 is greater than the predetermined opening angle, the hinge 320 and the mating groove 11 may not necessarily separate. For example, in an embodiment where the set opening angle is greater than the predetermined opening angle, if the opening angle of the door 300 is greater than the predetermined opening angle but less than or equal to the set opening angle, the hinge 320 and the mating groove 11 do not separate. In an embodiment where the set opening angle is equal to the predetermined opening angle, if the opening angle of the door 300 is greater than the predetermined opening angle, the hinge 320 and the mating groove 11 separate.

[0070] The door limiting device 110 of this application can automatically open the door 300 to a predetermined opening angle via the automatic door opening assembly, and can also realize manual opening and closing. For example, the door 300 can be manually opened to a greater than the set opening angle, so that the hinge 320 separates from the mating groove 11. After the hinge 320 is freed from the constraint of the mating groove 11, it can move freely, so that the door 300 can be opened to any angle greater than the set opening angle. Combined with the door balancing assembly 50, the door 300 is suspended for taking out and putting in tableware.

[0071] Therefore, the door limiting device 110 can not only automatically open the door 300 to dry tableware, but also manually open and close the door 300 to take out and put in tableware, making it highly practical.

[0072] During the manual opening of the door 300, the user opens the door 300, causing the hinge 320 to rotate, which in turn causes the mating part 10 to move. The rotating hinge 320 can be gradually separated from the mating part 10 by the movement of the mating part 10. For example, in some embodiments, the hinge 320 rotates upward and forward, and the mating part 10 on the rear side of the hinge 320 moves upward to gradually separate from the mating groove 11.

[0073] Alternatively, the mating member 10 can be rotated in a direction away from the hinge 320, so that the rotating hinge 320 is separated from the mating member 10 by the rotating mating member 10. For example, in some embodiments, such as Figures 3-6 As shown, the door limiting device 110 also includes a first track 331 and a second track 332 that are connected. The extension direction of the first track 331 is parallel to the first direction, and the extension direction of the second track 332 intersects the first direction. The second track 332 is connected to one end of the first track 331 and is located on the side of the first track 331 opposite to the hinge 320. The mating part 10 has a first sliding part 121 and a second sliding part 122. The first sliding part 121 is installed on the first track 331 and can slide towards the second track 332 during the opening of the door 300. The second sliding part 122 can slide along the first track 331 and the second track 332.

[0074] Among them, such as Figures 3-4 As shown, when the opening angle of the door 300 is less than or equal to the predetermined opening angle, the second sliding part 122 is located on the first track 331. Figure 5 As shown, when the opening angle of the door 300 is greater than the set opening angle, the second sliding part 122 is located on the second track 332.

[0075] For example, in some embodiments, such as Figures 3-5As shown, the second track 332 is connected to the upper end of the first track 331. During the opening of the door 300, the first sliding part 121 moves upward along the first track 331. After the opening angle of the door 300 is greater than the predetermined opening angle, the first sliding part 121 moves upward, and the second sliding part 122 rotates clockwise relative to the first sliding part 121. The rotation axis of the second sliding part 122 extends in the left-right direction. The position of this rotation axis is the center line of the first sliding part 121 and moves upward with the first sliding part 121, so that the second sliding part 122 slides from the first track 331 into the second track 332. The rotation axis of the second sliding part 122 moves with the movement of the first sliding part 121, so that the second sliding part 122 moves and rotates.

[0076] As the opening angle of the door 300 increases from less than or equal to the predetermined opening angle to greater than the set opening angle, the second sliding part 122 slides from the first track 331 into the second track 332, causing the mating part 10 to move and rotate in a direction away from the hinge 320, so as to release the hinge 320 from the mating groove 11. The separation of the hinge 320 from the mating groove 11 is faster and more thorough, and manual opening of the door is more convenient.

[0077] In addition, by limiting the mating part 10 by the limiting component 40, the second sliding part 122 is kept in the second track 332 after the hinge 320 moves freely when the door is manually opened, so that the mating part 10 is kept in a state separated from the hinge 320, which makes it easier for the hinge 320 to re-engage with the mating groove 11 during the subsequent manual closing process, making manual closing more convenient.

[0078] For example, in some specific embodiments, such as Figures 3-6 As shown, the first track 331 extends in the vertical direction, and the second track 332 extends in the front-back direction. The second track 332 is located on the upper and rear side of the first track 331. There is a bend between the first track 331 and the second track 332 so that the second sliding part 122 can slide between the first track 331 and the second track 332.

[0079] During manual door opening, hinge 320 rotates upward and forward, and mating part 10 on the rear side of hinge 320 moves upward and backward and rotates. Second sliding part 122 slides from first track 331 into second track 332, making hinge 320 separate from mating groove 11 faster, and second sliding part 122 remains in second track 332 after hinge 320 separates from mating groove 11.

[0080] During the subsequent manual closing process, the hinge 320 rotates downward and backward, causing the hinge 320 to contact the mating part 10 on the rear side of the hinge 320, thereby causing the mating part 10 to move downward and forward and rotate. The second sliding part 122 slides from the second track 332 into the first track 331, and the hinge 320 re-mates with the mating groove 11.

[0081] In some embodiments, such as Figures 3-6 As shown, the groove sidewalls of the mating groove 11 include opposing first groove walls 111 and second groove walls 112. During the opening of the door 300 to a predetermined opening angle, the first groove walls 111 and second groove walls 112 are arranged sequentially along the movement direction of the mating member 20. For example, in some embodiments, such as... Figures 3-5 As shown, the first groove wall 111 and the second groove wall 112 are arranged sequentially in the vertical direction, and the first groove wall 111 is located on the lower side of the second groove wall 112.

[0082] When the opening angle of the door 300 is less than or equal to the predetermined opening angle, the projections of the first groove wall 111, the second groove wall 112, and the hinge 320 along the first direction overlap. When the opening angle of the door 300 is greater than the predetermined opening angle, the projections of the second groove wall 112 and the hinge 320 along the first direction are offset.

[0083] like Figures 3-4 As shown, during the opening process, the hinge 320 abuts against the second groove wall 112. This application makes the second groove wall 112 shorter than the first groove wall 111, which helps to speed up the separation of the hinge 320 from the mating groove 11, making it more convenient to open the door.

[0084] In some embodiments where the hinge 320 gradually separates from the mating member 10 by moving the mating member 10, the hinge 320 rotates upward and forward, the mating member 10 on the rear side of the hinge 320 moves upward, and the length of the upper second groove wall 112 in the front-back direction is shorter than the length of the lower first groove wall 111 in the front-back direction, which makes it easier for the hinge 320 to disengage from the second groove wall 112 more quickly to separate from the mating groove 11.

[0085] In some embodiments where the hinge 320 gradually separates from the mating member 10 by rotating the mating member 10, such as Figure 5 As shown, the hinge 320 rotates upward and forward, and the mating part 10 on the rear side of the hinge 320 moves upward and backward and rotates. The second groove wall 112 is shorter than the first groove wall 111, which allows the hinge 320 to separate from the mating groove 11 more quickly, making it more convenient to manually open and close the door.

[0086] In some embodiments, such as Figures 3-4As shown, when the second sliding part 122 is located in the first track 331, the limiting fitting part 13 extends obliquely in the first direction toward the second track 332 and close to the limiting member 40. Figure 5 As shown, when the second sliding part 122 is located in the second track 332, the limiting fitting part 13 extends in the horizontal direction.

[0087] By engaging the limiting component 40 with the limiting mating part 13, the movement of the mating part 10 can be guided, so that as the second sliding part 122 slides from the first track 331 into the second track 332, the mating part 10 can rotate more smoothly along the first direction and in the direction close to the limiting component 40, making it more convenient to open the door manually.

[0088] In some embodiments that include the first track 331 and the second track 332, such as Figures 3-6 As shown, the door limiting device 110 includes a mounting box 30, which includes a box body 31 and a cover 32. The box body 31 has a first groove 311, and the cover 32 has a second groove. The cover 32 covers the box body 31 so that the first groove 311 and the second groove cooperate to form a first track 331 and a second track 332. The first sliding part 121 and the second sliding part 122 both include protrusions 123 located on both sides of the mating part 10, and the protrusions 123 on both sides are movably inserted into the first groove 311 and the second groove, respectively.

[0089] For example, in some embodiments, such as Figure 6 As shown, the first groove 311 and the second groove are opposite each other in the left-right direction. The first groove 311 forms part of the first track 331 and the second track 332, and the second groove forms another part of the first track 331 and the second track 332, so that the first track 331 and the second track 332 are formed by the cooperation of the first groove 311 and the second groove.

[0090] The first track 331 and the second track 332 are defined by the first groove 311 of the box body 31 and the second groove of the cover body 32. The mating part 10 is slidably installed on the first track 331 and the second track 332, making the movement of the mating part 10 more stable and the opening and closing process smoother.

[0091] In some embodiments of the present invention, the door limiting device 110 further includes a door lock assembly for locking the door 300 and the machine body 200. An automatic door opening assembly is used to drive the door lock assembly to unlock, thereby enabling automatic door opening and giving the dishwasher 1000 an automatic door opening function for drying tableware without requiring manual operation by the user, making it more convenient to use. Of course, the user can also manually open the door as needed, for example, to manually open the door to retrieve or place tableware.

[0092] In some embodiments, the automatic door opening assembly includes a housing and a drive component and a push rod mounted within the housing. The housing is mounted on the machine body 200, and the drive component is connected to one end of the push rod. In the height direction of the dishwasher 1000, the automatic door opening assembly and the hinge 320 are spaced apart to minimize movement interference between them. For example, the automatic door opening assembly may be located at the top of the dishwasher 1000, and the hinge 320 at the bottom of the dishwasher 1000. The drive component may be a wax motor, etc.

[0093] After the door 300 is opened or closed, the drive component can stop working, such as by stopping power supply. The door balance component 50 maintains the balance of the door 300, and the automatic door opening component does not need continuous power supply, which helps to reduce energy consumption and increase the service life of the automatic door opening component. After the drive component starts working, it can drive the push rod to move, so that the other end of the push rod can extend out of the housing to apply a pushing force to the door 300, thereby driving the door lock component to unlock.

[0094] In some embodiments, the stroke of the drive component driving the push rod to reciprocate is controllable. By controlling the stroke of the push rod to reciprocate to the maximum, the push rod can apply sufficient thrust to the door 300. This not only overcomes the locking force of the door lock assembly to open the door 300, but also maximizes the opening angle of the door 300, ensuring that the opening angle of the door 300 is not less than the predetermined opening angle. This prevents the tableware from drying for too long, reduces the risk of mold and bacterial growth, and achieves a better drying effect.

[0095] Of course, in other embodiments, the automatic door opening assembly may also be located on the door body 300. Specifically, the housing may be located on the door body 300, and the push rod may apply a pushing force to the body 200 to drive the door lock assembly to unlock.

[0096] In some embodiments, the door lock assembly and the automatic door opening assembly can be integrated to make the structure more compact, easier to assemble, and make it easier for the automatic door opening assembly to push the door body 300 to overcome the locking force of the door lock assembly.

[0097] In some embodiments of the present invention, the automatic door opening assembly includes a drive member, a gear set, and a rack. The gear set includes at least one gear and is meshed between the drive member and the rack. The drive member drives the gear set to rotate, thereby moving the rack. The rack is connected to the mating member 10.

[0098] The driving force transmitted from the drive component to the gear set is transmitted to the mating component 10 via the rack, so that the rack and the mating component 10 can move in the first direction, thereby driving the hinge 320 to rotate around the rotation axis in the first rotation direction to automatically open the door 300.

[0099] Changing the number of gears in the gear set alters the gear ratio, thereby changing the driving force transmitted to the mating member 10 without altering the driving force of the driving component. This, in turn, adjusts the stroke of the mating member 10 to regulate the rotation angle of the hinge 320. The number of gears in the gear set can be flexibly set according to the desired rotation angle of the hinge 320.

[0100] Therefore, the automatic door opening assembly can cooperate with the hinge 320 to directly control the rotation angle of the hinge 320 to achieve automatic door opening. The door limiting device 110 can be set near the hinge 320, which facilitates precise control of the rotation angle of the hinge 320 to control the speed of automatic door opening and closing. For example, by controlling the driving force of the drive assembly on the mating part 10, the movement speed of the mating part 10 can be controlled, thereby controlling the rotation speed of the hinge 320. It is less likely to cause the user to be injured or the dishwasher 1000 to be damaged due to the door opening and closing speed being too fast. It has good safety and helps to extend the service life of the dishwasher 1000.

[0101] In some embodiments, the rack is hinged to the mating member 10, allowing the mating member 10 to rotate relative to the rack. This achieves the transmission purpose between the drive member and the mating member 10, while also facilitating the rotation of the mating member 10 relative to the rack when the door 300 is open at an angle greater than the set opening angle. This allows the hinge 320 to separate from the mating groove 11, making manual opening and closing of the door more convenient.

[0102] like Figures 1-2 As shown, the dishwasher 1000 according to an embodiment of the present invention includes a body 200, a door 300, and a door limiting device 110 according to an embodiment of the present invention. Since the door limiting device 110 according to the embodiment of the present invention has the aforementioned beneficial technical effects, the dishwasher 1000 according to the present invention, by limiting the hinge 320 through the limiting component 120, can reduce the risk of the door 300 falling off, thus improving safety. Furthermore, by using the automatic door opening component and the limiting component 120, the opening angle of the door 300 can be limited to a predetermined opening angle after automatic opening, resulting in better drying performance.

[0103] In some embodiments, such as Figures 1-2 As shown, the door body 300 includes a door body 310 and a hinge 320. The door body 310 is rotatably connected to the body 200 through the hinge 320, and the hinge 320 has a mating protrusion 3201. The mating protrusion 3201 can be inserted into the mating groove 11 of the mating part 10. The structure is simple and easy to implement.

[0104] In some embodiments, such as Figures 1-2As shown, the limiting component 120 includes a mating member 10, which is movable relative to the body 200. The mating member 10 has a mating groove 11 for accommodating a mating protrusion 3201. The movement path of the mating member 10 is at least partially within the rotation radius of the mating protrusion 3201, so that the mating member 10 and the mating protrusion 3201 can move together for a certain distance. During the engagement of the mating protrusion 3201 with the mating groove 11, the hinge 320 and the mating member 10 can move together, for example, the hinge 320 can drive the mating member 10 to move or the mating member 10 can drive the hinge 320 to move, thus making the limitation on the opening angle of the door 300 more stable.

[0105] In some embodiments, such as Figures 1-5 As shown, the front end of hinge 320 is connected to door body 310, the middle part of hinge 320 is hinged to body 200, and the rear end of hinge 320 includes a hook and a mating protrusion 3201. The hook is connected to door balance assembly 50. Compared with hinges in related technologies, the hinge 320 of this application adds a mating protrusion 3201, which allows the mating protrusion 3201 to engage with the mating groove 11 to limit the opening angle of door body 310.

[0106] The door limiting device 110 and dishwasher 1000 according to a specific embodiment of the present invention are described in detail below with reference to the accompanying drawings. It is to be understood that the following description is merely illustrative and should not be construed as limiting the invention.

[0107] like Figures 1-6 As shown, a dishwasher 1000 according to a specific embodiment of the present invention includes a body 200, a door 300 and a door limiting device 110. The door 300 includes a door body 310 and a hinge 320. The door body 310 is rotatably connected to the body 200 through the hinge 320. The rotation axis of the hinge 320 is parallel to the width direction of the dishwasher 1000 in the left-right direction as shown in the figure. The rear end of the hinge 320 has a mating protrusion 3201.

[0108] The door limiting device 110 includes an automatic door opening assembly, a mounting box 30, a limiting assembly 120, and a door balancing assembly 50. The automatic door opening assembly is used to open the door body 310.

[0109] The mounting box 30 is installed on the body 200. The mounting box 30 includes a box body 31 and a cover 32. The box body 31 has a first groove 311, and the cover 32 has a second groove. The cover 32 covers the box body 31, so that the first groove 311 and the second groove are opposite each other in the left-right direction. The first groove 311 forms part of the first track 331 and the second track 332, and the second groove forms the other part of the first track 331 and the second track 332, so that the first track 331 and the second track 332 are formed by the cooperation of the first groove 311 and the second groove. The first track 331 extends in the vertical direction, and the second track 332 extends in the front-back direction and communicates with the first track 331. The second track 332 is located on the upper and rear side of the first track 331.

[0110] The limiting assembly 120 includes a mating part 10 and a limiting component 40. The mating part 10 has a first sliding part 121 and a second sliding part 122. The first sliding part 121 is slidable along a first track 331, and the second sliding part 122 is slidable along the first track 331 and the second track 332. Both the first sliding part 121 and the second sliding part 122 include protrusions 123 located on the left and right sides of the mating part 10, respectively. The two protrusions 123 are movably inserted into the first groove 311 and the second groove, respectively, so that the mating part 10 is movably mounted on the first track 331 and the second track 332 in the vertical direction.

[0111] The first sliding part 121 is movable in the vertical direction, and the second sliding part 122 is rotatable relative to the first sliding part 121. The rotation axis of the second sliding part 122 extends in the horizontal direction. The position of the rotation axis is the center line of the first sliding part 121 and it can move in the vertical direction with the first sliding part 121, so that the mating part 10 can move and can also move and rotate at the same time.

[0112] The mating part 10 has a mating groove 11 for receiving the mating protrusion 3201. The groove sidewall of the mating groove 11 includes a first groove wall 111 and a second groove wall 112 that are opposite each other in the vertical direction. The second groove wall 112 is located above the first groove wall 111, and in the front-back direction, the length of the second groove wall 112 is shorter than the length of the first groove wall 111.

[0113] The mating part 10 includes a limiting mating part 13, and the limiting component 40 includes a limiting elastic member 41 and a limiting member 42. The limiting member 42 is used to abut against the limiting mating part 13, and the limiting elastic member 41 is used to apply a downward elastic force to the limiting member 42.

[0114] The housing 31 has a first stop portion 341 and a second stop portion 342 spaced apart in the vertical direction, with the first stop portion 341 located above the second stop portion 342. A limiting member 42 is movably disposed between the first stop portion 341 and the second stop portion 342, and a limiting elastic member 41 is located above the limiting member 42 and abuts against the limiting member 42 and the first stop portion 341, so that the limiting elastic member 41 is in a compressed state. When the mating member 10 is separated from the limiting member 40, the limiting member 42 abuts against the second stop portion 342.

[0115] The box body 31 is provided with a first protruding rib 312 extending in the vertical direction, and the cover body 32 is provided with a second protruding rib extending in the vertical direction. The left and right sides of the limiting member 42 are respectively provided with guide grooves 421, and the guide grooves 421 on both sides are respectively movably inserted and engaged with the first protruding rib 312 and the second protruding rib. The limiting member 42 is movably installed on the first protruding rib 312 and the second protruding rib through the guide grooves 421.

[0116] The limiting member 42 is located on the rear side of the mating member 10, and the limiting mating part 13 is located on the rear side of the mating groove 11 and the front side of the limiting member 42. When the second sliding part 122 is located on the first track 331, the limiting mating part 13 extends upward and backward at an angle. When the second sliding part 122 is located on the second track 332, the limiting mating part 13 extends in the front-back direction.

[0117] The door balancing assembly 50 includes a guide wheel 53, a connected door balancing elastic element 51, and a pull rope 52. The door balancing elastic element 51 and the pull rope 52 are connected to the body 200 and the hinge 320. The pull rope 52 is wound around the guide wheel 53. The door balancing elastic element 51 is used to keep the door body 310 at the current opening angle.

[0118] During the opening process, firstly, when the opening angle of the door body 310 is less than the predetermined opening angle, the limiting member 42 and the limiting mating part 13 are separated, the second sliding part 122 is located on the first track 331, and the projections of the first groove wall 111, the second groove wall 112 and the mating protrusion 3201 in the vertical direction overlap.

[0119] Next, with the door body 310 opening at a predetermined angle, the limiting member 42 abuts against the limiting mating part 13. The limiting member 42 limits the hinge 320 via the mating part 10, thus restricting the opening angle of the door body 310 to the predetermined opening angle. The second sliding part 122 is located on the first track 331, and the projections of the first groove wall 111, the second groove wall 112, and the mating protrusion 3201 overlap in the vertical direction.

[0120] Then, when the opening angle of the door body 310 is greater than the predetermined opening angle and less than or equal to the set opening angle, the limiting member 42 abuts against the limiting mating part 13, the limiting member 42 moves upward, and the second sliding part 122 is located on the first track 331 or the second track 332. The projection portions of the first groove wall 111, the second groove wall 112, and the mating protrusion 3201 overlap in the vertical direction. The set opening angle is greater than the predetermined opening angle.

[0121] Finally, when the opening angle of the door body 310 is greater than the set opening angle, the limiting member 42 abuts against the limiting mating part 13, the limiting member 42 moves upward, the second sliding part 122 is located in the second track 332, the projection of the second groove wall 112 and the mating protrusion 3201 in the vertical direction is offset, and the hinge 320 can move freely.

[0122] During automatic door opening, the opening angle of the door body 310 is less than or equal to the predetermined opening angle. When the opening angle of the door body 310 is equal to the predetermined opening angle, the hinge 320 is limited by the limiting component 120 to restrict the opening angle of the door body 310 to the predetermined opening angle, resulting in better drying effect.

[0123] During manual opening, the door body 310 can open at any angle. Specifically, when the opening angle of the door body 310 is greater than the set opening angle, the mating protrusion 3201 separates from the mating groove 11, allowing the hinge 320 to move freely. The door balance assembly 50 enables the door body 310 to hover at any opening angle, facilitating the user's access to tableware.

[0124] The door limiting device 110 of this specific embodiment can automatically open the door body 310 to a predetermined opening angle and limit the opening angle of the door body 310 to the predetermined opening angle for drying tableware. Furthermore, during the automatic opening process, if the door balancing component 50 fails, the limiting component 120 can limit the hinge 320 to prevent the door body 310 from falling, providing good safety. The door limiting device 110 also enables manual opening and closing operations for users to retrieve and place tableware.

[0125] The door limiting device 110 of the dishwasher 1000 according to embodiments of the present invention, as well as other components and operations of the dishwasher 1000, are known to those skilled in the art and will not be described in detail here.

[0126] In the description of this invention, it should be noted that, unless otherwise explicitly 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 of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0127] In the description of this specification, the references to terms such as "embodiment," "specific embodiment," and "example" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0128] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A door limiting device for a dishwasher, characterized in that, include: An automatic door opening assembly for opening the door of the dishwasher; A door balancing assembly, the door balancing assembly including a door balancing elastic member, the door balancing elastic member connecting the body of the dishwasher and the door body, the door balancing elastic member being used to keep the door body at a current opening angle; The limiting component is adapted to limit the hinges of the door body when the automatic door opening component opens the door body to a predetermined opening angle, so as to limit the opening angle of the door body to the predetermined opening angle.

2. The door limiting device for a dishwasher according to claim 1, characterized in that, The limiting assembly includes a mating part and a limiting component. The mating part is movable relative to the body and has a mating groove for accommodating the hinge. As the door opens to the predetermined opening angle, the mating part moves toward the limiting component in a first direction. The hinge rotates about a rotation axis in a first rotation direction, and the first direction intersects the extension direction of the hinge rotation axis. The fitting component includes a limiting fitting part. When the opening angle of the door is greater than or equal to the predetermined opening angle, the limiting component abuts against the limiting fitting part; when the opening angle of the door is less than the predetermined opening angle, the limiting component separates from the limiting fitting part.

3. The door limiting device for a dishwasher according to claim 2, characterized in that, The limiting component includes a limiting elastic element and a limiting element. The limiting element is used to abut against the limiting mating portion, and the limiting elastic element is used to apply an elastic force to the limiting element in the first direction toward the limiting mating portion.

4. The door limiting device for a dishwasher according to claim 3, characterized in that, The device includes a mounting box, which has a first stop and a second stop spaced apart along the first direction. A limiting member is movably disposed between the first stop and the second stop. A limiting elastic member is located on the side of the limiting member opposite to the limiting mating part and abuts against the limiting member and the first stop. When the mating part is separated from the limiting member, the limiting member abuts against the second stop.

5. The door limiting device for a dishwasher according to claim 2, characterized in that, When the opening angle of the door is greater than the set opening angle, the hinge separates from the mating groove, and the set opening angle is greater than or equal to the predetermined opening angle.

6. The door limiting device for a dishwasher according to claim 5, characterized in that, It also includes a first track and a second track that are connected. The first track extends parallel to the first direction, and the second track extends intersecting the first direction. One end of the second track is connected to the first track and is located on the side of the first track opposite to the hinge. The mating component has a first sliding part and a second sliding part. The first sliding part is mounted on the first track and is adapted to slide towards the second track during the opening of the door. The second sliding part is slidable along both the first track and the second track. When the opening angle of the door is less than or equal to the predetermined opening angle, the second sliding part is located on the first track; when the opening angle of the door is greater than the predetermined opening angle, the second sliding part is located on the second track.

7. The door limiting device for a dishwasher according to claim 5 or 6, characterized in that, The groove sidewalls of the mating groove include opposing first and second groove walls. During the process of the door opening to the predetermined opening angle, the first and second groove walls are arranged sequentially along the movement direction of the mating component. When the opening angle of the door is less than or equal to the predetermined opening angle, the projection portions of the first groove wall, the second groove wall, and the hinge along the first direction overlap. When the opening angle of the door is greater than the set opening angle, the projections of the second groove wall and the hinge along the first direction are offset.

8. The door limiting device for a dishwasher according to claim 6, characterized in that, When the second sliding part is located on the first track, the limiting fitting part extends obliquely in the first direction toward the side facing the second track and close to the limiting member; when the second sliding part is located on the second track, the limiting fitting part extends in the horizontal direction.

9. The door limiting device for a dishwasher according to claim 6, characterized in that, The device includes an installation box, which comprises a box body and a cover. The box body has a first groove, and the cover has a second groove. The cover covers the box body so that the first groove and the second groove cooperate to form the first track and the second track. The first sliding part and the second sliding part each include protrusions located on both sides of the mating part, and the protrusions on both sides are movably inserted into the first groove and the second groove, respectively.

10. The door limiting device of the dishwasher according to claim 1, characterized in that, It also includes a door lock assembly for locking the door and the machine body. In the height direction of the dishwasher, the automatic door opening assembly and the hinge are arranged spaced apart. The automatic door opening assembly includes a housing and a drive component and a push rod installed in the housing. The housing is installed in one of the door and the machine body. The drive component is connected to one end of the push rod, and the other end of the push rod is adapted to extend out of the housing to apply a pushing force to the other of the door and the machine body to drive the door lock assembly to unlock.

11. A dishwasher, characterized in that, The dishwasher includes a body, a door, and a door limiting device according to any one of claims 1-10. The door includes a door body and a hinge, the door body being rotatably connected to the body via the hinge, and the hinge having a mating protrusion adapted to engage with the limiting component.

12. The dishwasher according to claim 11, characterized in that, The limiting component includes a mating member that is movable relative to the machine body. The mating member has a mating groove for accommodating the mating protrusion. The movement path of the mating component is at least partially within the rotation radius of the mating protrusion.

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