Door structure for household appliances and household appliances

Abstract

The present invention relates to a door structure for household appliances and the household appliances, the door structure comprises a door body; a handle; a first elastic member; a positioning member, movably arranged on the side wall of the handle, the positioning member comprises a positioning part; a limiting block, arranged on the wall surface of the groove, when the handle is in the first position, the limiting block is located on the path of the positioning part moving in the first direction; a convex block, arranged on the limiting block, the positioning member is moved so that the moving direction of the positioning part and the limiting block staggered in the first direction is defined as a third direction, when the handle is in the first position, the convex block is located on the path of the positioning part moving in the third direction and the two are against each other; when the handle is in the third position, the positioning part is away from the limiting block, and the positioning part and the convex block are staggered in the third direction; a second elastic member, acting on the positioning member, so that the positioning member always maintains the tendency to move in the third direction. The handle can be firmly positioned in the groove.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, and in particular to a door structure for household appliances and the household appliances. Background Art

[0002] For household appliances with functional inner cavities, such as dishwashers, steamers, ovens, etc., in order to prevent the contents in the household appliances from splashing out, a door body that can open or cover the port is usually provided at the port of the box. In order to facilitate opening and closing the door body, a handle assembly is generally provided on the door body.

[0003] At present, the handle assembly usually adopts the following two forms:

[0004] One is: fixedly set on the outer surface of the door body, that is, protruding from the outside of the door body. This structural form is not beautiful, and the protruding handle assembly is easy to cause the user to accidentally trigger the handle and open the door, which is low in safety; and if it is a front-opening household appliance, the door assembly is set vertically, and the user is easy to touch the protruding handle assembly and get injured; if it is a top-opening household appliance, the door assembly is placed horizontally, and the protruding handle assembly will affect the placement of items on the door assembly, which is not convenient.

[0005] The other is: the handle assembly protrudes from the outer surface of the door body when in use, and is hidden inside the door body when not in use, such as the "Household Appliance and Door Assembly Thereof" disclosed in the Chinese invention patent application with patent number CN201811615754.2 (publication number CN109750902A), in which the door assembly includes: a door panel, on which a handle groove for accommodating a door handle is provided; a door handle, which is installed at the handle groove and matches the shape of the handle groove and can reciprocate relative to the door panel to extend or retract into the handle groove; a pop-up mechanism, which cooperates with the door panel and the door handle, and can make the door handle extend out of the handle groove when pressed, and retract into the handle groove when pressed again. The pop-up mechanism also includes an elastic reset member that cooperates with the door panel and the door handle, respectively, and the elastic deformation of the elastic reset member gradually increases in the process of the door handle extending out of the handle groove. The elastic return member is a tension spring, and the two ends of the tension spring are respectively connected to the door handle and the door panel; or, the elastic return member is a hydraulic rod, and the two ends of the hydraulic rod are respectively connected to the door handle and the door panel; or, the elastic return member is a torsion spring, and the two torsion arms of the torsion spring are respectively limited on the door panel and the door handle.

[0006] After the door handle is reset, the patent uses elastic reset parts such as tension springs, hydraulic rods or torsion springs to achieve the positioning of the door handle. If the elastic reset part uses a tension spring or a torsion spring, after the door handle is used for a long time, it cannot be guaranteed that the tension spring or the torsion spring always has a reliable positioning force on the door handle, which may cause the door handle to pop out toward the outside of the handle groove under the action of the pop-up mechanism, thereby causing the function of the door handle hidden in the handle groove to fail; if the elastic reset part uses a hydraulic rod, although the positioning of the door handle is more reliable, the hydraulic rod is connected to the door handle. Every time the door handle pops up, not only the pop-up mechanism needs to work, but also the hydraulic rod needs to move outward, otherwise the hydraulic rod will interfere with the movement of the door handle. Summary of the invention

[0007] The first technical problem to be solved by the present invention is to provide a door structure for household appliances that can reliably position a door handle hidden therein in view of the current status of the prior art.

[0008] The second technical problem to be solved by the present invention is to provide a household appliance using the above-mentioned door structure in view of the current status of the prior art.

[0009] The technical solution adopted by the present invention to solve the above-mentioned first technical problem is: a door structure for household appliances, comprising

[0010] A door body, wherein the outer wall surface of the door body is provided with a groove with one side open;

[0011] A handle is movably arranged in a groove of the door body, and the handle can be in a first position and a second position relative to the door body. When the handle is in the first position, the handle is hidden in the groove; when the handle is in the second position, the handle is at least partially located outside the groove and protrudes from the outer wall surface of the door body; the direction in which the handle moves outside the groove is defined as a first direction, and the direction in which the handle moves toward the groove is defined as a second direction;

[0012] A first elastic member is disposed in the groove and acts on the handle to keep the handle moving along the first direction;

[0013] It is characterized by that it also includes

[0014] A positioning member, movably disposed on the side wall of the handle, wherein the positioning member includes a positioning portion;

[0015] A limit block is arranged on the wall surface of the groove, and when the handle is in the first position, the limit block is located on the path of the positioning part moving along the first direction;

[0016] A protrusion is arranged on the limit block, and the moving direction in which the positioning member moves so that the positioning portion and the limit block are offset in the first direction is defined as a third direction. When the handle is in the first position, the protrusion is located on the path of the positioning portion moving along the third direction and the two are against each other; and the handle can move from the first position to the third position along the second direction. When the handle is in the third position, the positioning portion is away from the limit block, and the positioning portion and the protrusion are offset in the third direction.

[0017] The second elastic member acts on the positioning member to ensure that the positioning member always maintains a tendency to move along the third direction.

[0018] In order to enable the positioning portion to abut or stagger with the limit block and the protrusion, the positioning member also includes a connecting rod extending along the second direction, the first end of the connecting rod is rotatably connected to the handle via a rotating shaft, the second end of the connecting rod is provided with the positioning portion, and the rotating shaft and the positioning portion are spaced apart along the second direction; the protrusion is formed on the wall surface of the limit block adjacent to the bottom wall of the groove.

[0019] In order to guide the moving track of the positioning part, a guide groove is provided on the wall surface of the groove, and the guide groove includes a first slideway and a second slideway, and the first slideway includes a first section and a second section which are sequentially arranged and connected along the second direction, the first section extends along the first direction, and the second section extends along the second direction in a direction away from the first section;

[0020] The connection between the first end of the first section and the first end of the second section is connected to one end of the second slide, and the other end of the second slide is connected to the second end of the second section, and the second slide and the second section are surrounded by the limit block and the protrusion; under the action of the first elastic member and the second elastic member, the positioning part has a tendency to slide back and forth along the first section, the second section, the second slide, and the first section, and the portion of the second slide corresponding to the bottom wall of the limit block allows the positioning part to move along the second direction and the first direction.

[0021] In order to enable the positioning part to slide back and forth along the first section, the second section, the second slideway, and the first section in one direction under the action of the first elastic member and the second elastic member, the height of the second slideway is higher than the first slideway, one end of the second slideway is connected to the first slideway through a first step with a reduced slope, and the other end of the second slideway is connected to the first slideway through a second step with a reduced slope, and the slope of the first step is steeper than that of the second step. In this way, the positioning part cannot move from the first slideway to the second slideway when passing through the first step, but can move from the first slideway to the second slideway when passing through the second step.

[0022] In order to make the slope of the first step steeper than that of the second step, the plane where the first step is located is perpendicular to the plane where the first slide is located; the plane where the second step is located is inclined relative to the plane where the first slide is located, and the angle between the two is an obtuse angle.

[0023] Because the second slideway is higher than the first slideway, that is, the two are at different heights, in order to prevent interference between the connecting rod and the guide groove, the connecting rod can be elastically deformed in the extension direction of the rotating shaft. When the connecting rod is between the second slideway and the handle, the connecting rod is compressed and deformed to adapt to the space between the second slideway and the handle.

[0024] In order to limit the travel of the handle moving out of the groove, the second end of the first section is closed, and when the positioning portion abuts against the second end of the first section, the handle cannot continue to move out of the groove. This not only ensures that the handle will not completely leave the groove, facilitating the reset of the handle, but also blocks the notch of the groove, which is not only beautiful but also prevents foreign matter from entering the groove.

[0025] In order to improve the safety and convenience of using household appliances, a first microswitch and a second microswitch are provided in the groove, and the handle is provided with a first contact and a second contact at intervals along its moving direction. When the handle is in the first position, the first contact triggers the first microswitch. At this time, it is judged that the user does not interrupt to open the door body. The household appliance can be controlled by the controller through the signal change, thereby improving the user experience; when the handle is in the second position, the second contact triggers the second microswitch. At this time, it is judged that the user intends to open the door body. Through this signal change, the working program of the household appliance can be interrupted by the controller, such as the cleaning program of the washing machine, to prevent hot water from splashing out of the machine, thereby improving safety.

[0026] When the handle is in the first position, the outer wall of the handle may be lower than the outer wall of the door body. In order to improve the flatness and aesthetics of the door structure, when the handle is in the first position, the handle is embedded in the groove and flush with the outer wall of the door body.

[0027] In order to facilitate the user to pull the door body, the handle is provided with a hand groove for the user to insert his finger, and when the handle is in the second position, the hand groove is at least partially exposed outside the groove. At this time, the user can apply force on the hand groove to pull the door body open, which is convenient to use.

[0028] In order to improve the aesthetics of the handle, the handle comprises a body and a panel arranged on the outer wall of the body. The panel plays a decorative role, and the panel can be made of a different material from the outer wall of the door body, thereby increasing the diversity of the appearance.

[0029] The technical solution adopted by the present invention to solve the above-mentioned second technical problem is: a household appliance using the above-mentioned door body structure, characterized in that: it also includes a box body with an inner cavity, one side of the box body is open, and the door body is movably arranged at the opening of the box body to open and close the opening of the box body, and the notch of the groove on the door body is facing away from the opening of the box body.

[0030] The household appliance may be a steamer, an oven, a microwave oven, etc. In the above scheme, the household appliance is a cleaning machine, and the inner cavity is a washing cavity.

[0031] Compared with the prior art, the advantages of the present invention are as follows: the present invention provides a limiting block and a protrusion on the wall surface of the groove, and provides a positioning piece on the handle. When the handle is in the first position, the positioning part and the limiting block conflict with each other in the first direction, and the handle cannot move out of the groove, thereby ensuring that the handle is stably positioned in the groove; the handle in the first position is pressed toward the bottom wall of the groove (i.e., the handle is pressed to the third position), the positioning part can be offset from the protrusion and move along the third direction under the action of the second elastic member, so that the positioning part and the limiting block are offset in the first direction, and then the handle moves out of the groove under the action of the first elastic member, and the positioning piece and the limiting block will not interfere with the movement of the handle;

[0032] And from the above, it can be known that when the handle needs to be moved from the first position to the second position, the handle is pressed so that the positioning portion is out of contact with the limit block and the protrusion, and the handle can be moved to the second position under the action of the first elastic member; when the handle needs to be moved from the second position to the first position, the handle is pressed to move it to the first position, the limit block, the protrusion and the positioning portion are in contact with each other, and the handle is positioned; only one pressing operation is required, and the operation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a structural schematic diagram of a door body according to an embodiment of the present invention (the handle is in the first position);

[0034] Figure 2 for Figure 1 A schematic diagram of the structure of the handle in FIG.

[0035] Figure 3 for Figure 2 Schematic diagram of the decomposition of

[0036] Figure 4 for Figure 1 Schematic diagram of the structure of the middle handle, the first micro switch and the second micro switch

[0037] Figure 5 for Figure 1 A cross-sectional view of

[0038] Figure 6 for Figure 1 A diagram showing the matching state of the positioning portion and the guide groove;

[0039] Figure 7 It is a structural schematic diagram of the door body of an embodiment of the present invention (the positioning portion slides to the corner of the second slideway);

[0040] Figure 8 for Figure 7 A diagram showing the matching state of the positioning portion and the guide groove;

[0041] Fig. 9 It is a structural schematic diagram of a door body according to an embodiment of the present invention (the handle is in the second position);

[0042] Fig.10 for Fig. 9 A diagram showing the matching state of the positioning portion and the guide groove;

[0043] Fig.11 It is a structural schematic diagram of the door body of an embodiment of the present invention (the positioning portion moves to the first step);

[0044] Fig.12 for Fig.11 A diagram showing the matching state of the positioning portion and the guide groove;

[0045] Fig.13 It is a structural schematic diagram of the door body of an embodiment of the present invention (the positioning portion moves to the second step);

[0046] Fig.14 for Fig.13 Diagram of the matching status of the positioning part and the guide groove. DETAILED DESCRIPTION

[0047] The present invention is further described in detail below with reference to the accompanying drawings.

[0048] like Figures 1 to 14 As shown, the household appliance of this preferred embodiment is a washing machine capable of washing dishes. Of course, the household appliance may be a steamer, an oven, a microwave oven, etc.

[0049] The household appliance includes a door structure and a box body with an inner cavity (not shown in the figure), and the inner cavity is a washing cavity. The door structure includes a door body 1, one side of the inner cavity is open, and the door body 1 is movably arranged at the opening of the inner cavity, so as to open and close the opening of the inner cavity. The connection method between the door body 1 and the box body can adopt an existing structure, such as a rotating connection or a pull-out connection; the box body can be open at the top or the front side. As shown in the "A door lock mechanism for an electrical appliance and a cleaning machine having the door lock mechanism" disclosed in the Chinese utility model patent with patent number CN202123170648.8 (publication number CN216788053U), or as shown in the "Anti-dumping cleaning machine" disclosed in the Chinese utility model patent with patent number CN202221183154.5 (publication number CN217645180U).

[0050] The door structure also includes a handle 2, a first elastic member 21, a stopper 3 and a positioning member. A groove 11 with one side open is provided on the outer wall of the door 1, the notch of the groove 11 faces away from the opening of the box body, the wall of the groove 11 facing the notch is defined as the bottom wall of the groove 11, and the wall of the stopper 3 adjacent to the bottom wall of the groove 11 is defined as the bottom wall of the stopper 3.

[0051] The handle 2 is movably disposed in the groove 11 of the door body 1, and the handle 2 includes a body 21 and a panel 22 disposed on the outer wall of the body 21. The panel 22 serves as a decoration, and the panel 22 can be made of a different material from the outer wall of the door body 1 to increase the diversity of the appearance. The positioning member, the first contact 24, the second contact 25, the first elastic member 21, etc. mentioned below are all disposed on the body 21.

[0052] The handle 2 can be in a first position, a second position and a third position relative to the door body 1. Figure 1 , 5 As shown, when the handle 2 is in the first position, the handle 2 is hidden in the groove 11, specifically, the handle 2 is embedded in the groove 11 and is flush with the outer wall surface of the door body 1. This not only makes the door body 1 structure simple and beautiful, but also prevents the handle 2 from accidentally opening the door during cleaning, thereby improving safety and reliability; in addition, for a vertically arranged door body 1, it can prevent users from being injured by touching the protruding handle 2, thereby improving safety and reliability; for a horizontally arranged door body 1, it can prevent the protruding handle 2 from affecting the placement of items on the door body 1, thereby improving convenience of use.

[0053] like Fig. 9 As shown, the handle 2 is provided with a hand-grip groove 23 for the user to insert his / her finger. When the handle 2 is in the second position, the handle 2 is partially located outside the groove 11 and protrudes from the outer wall of the door body 1, and the hand-grip groove 23 is at least partially exposed outside the groove 11. At this time, the user can apply force on the hand-grip groove 23 to open the door body 1, which is convenient for use.

[0054] The first elastic member 21 is disposed in the groove 11 and acts on the handle 2, so that the handle 2 always maintains a tendency to move out of the groove 11. In this embodiment, the first elastic member 21 is a spring, one end of which abuts against the handle 2, and the other end abuts against the bottom wall of the groove 11. In order to improve the movement stability of the handle 2, a plurality of first elastic members 21 are provided.

[0055] The direction in which the handle 2 moves out of the groove 11 is defined as a first direction, and the direction in which the handle 2 moves toward the groove 11 is defined as a second direction.

[0056] A limiting block 3 is provided on the wall surface of the groove 11 , and a protrusion 32 is provided on the bottom wall of the limiting block 3 , that is, the limiting block 3 and the protrusion 32 are formed by opening a notch 31 on a triangular block.

[0057] like Figure 3 , 5 As shown, a positioning member is provided on the handle 2, and the positioning member includes a connecting rod 4 extending along the second direction. The first end of the connecting rod 4 is rotatably connected to the handle 2 through a rotating shaft 41, and the second end of the connecting rod 4 is provided with a positioning portion 42 extending toward the wall of the groove 11. The rotating shaft 41 and the positioning portion 42 are spaced apart along the second direction.

[0058] like Figure 6 As shown, when the handle 2 is in the first position, the stopper 3 is located on the path of the positioning portion 42 moving in the first direction. The positioning member is moved so that the moving direction of the positioning portion 42 and the stopper 3 are offset in the first direction is defined as the third direction. When the handle 2 is in the first position, the protrusion 32 is located on the path of the positioning portion 42 moving in the third direction and the two are against each other. The handle is moved from the first position to the third position along the second direction. When the handle is in the third position, the positioning portion 42 is away from the stopper 3, and the positioning portion 42 and the protrusion 32 are offset in the third direction. Then the connecting rod 4 is rotated. Figure 8 The connecting rod 4 is rotated until the positioning portion is located at the corner of the second slideway 52.

[0059] The positioning member always keeps the tendency to move along the third direction under the action of the second elastic member 7. In this embodiment, the second elastic member 7 is a torsion spring installed on the handle 2, one torsion arm of the torsion spring is installed on the handle 2, and the other torsion arm is installed in the mounting hole 43 of the connecting rod 4.

[0060] In other words, when the handle 2 is in the first position, the positioning portion 42 is in contact with the limit block 3 and the protrusion 32, which can ensure that the handle 2 is stably positioned in the groove 11; when the handle 2 in the first position is pressed toward the bottom wall of the groove 11, the positioning portion 42 can be disengaged from the limit block 3 and the protrusion 32, and the handle 2 moves toward the outside of the groove 11 under the action of the first elastic member 21 and the second elastic member 7.

[0061] like Figure 6 As shown, a guide groove 5 is provided on the wall surface of the groove 11 for the positioning portion 42 to slide therein, and the guide groove 5 includes a first slide 51 and a second slide 52. The first slide 51 includes a first section 511 and a second section 512 that are sequentially arranged and connected along the second direction. The first section 511 extends along the first direction, and the second end of the first section 511 is closed. When the positioning portion 42 abuts against the second end of the first section 511, the handle 2 cannot continue to move out of the groove 11.

[0062] The second section 512 extends along the second direction away from the first section 511, and the connection between the first end of the first section 511 and the first end of the second section 512 is connected to one end of the second slide 52, and the other end of the second slide 52 is connected to the second end of the second section 512. The height of the second slide 52 is higher than the first slide 51 (that is, the second slide 52 is closer to the handle 2 than the first slide 51), and one end of the second slide 52 is connected to the first slide 51 through a first step 53 with a reduced slope, and the other end of the second slide 52 is connected to the first slide 51 through a second step 54 with a reduced slope.

[0063] The plane where the first step 53 is located is perpendicular to the plane where the first slide 51 is located; the plane where the second step 54 is located is inclined relative to the plane where the first slide 51 is located, and the angle between the two is an obtuse angle, so that the slope of the first step 53 is steeper than the slope of the second step 54. In this way, when the positioning portion 42 passes through the first step 53, it cannot move from the first slide 51 to the second slide 52, and when passing through the second step 54, it can move from the first slide 51 to the second slide 52.

[0064] The above-mentioned limiting block 3 and the protrusion 32 are arranged between the second slideway 52 and the second section 512. In this embodiment, the limiting block 3 is roughly triangular in shape.

[0065] Under the action of the first elastic member 21 and the second elastic member 7, the positioning portion 42 has a tendency to slide back and forth along the first section 511, the second section 512, the second slide 52, and the first section 511. The portion of the second slide 52 corresponding to the bottom wall of the limit block 3 allows the positioning portion 42 to move along the second direction and the first direction.

[0066] Because the second slideway 52 is higher than the first slideway 51, that is, the two are at different heights, in order to prevent interference between the connecting rod 4 and the guide groove 5, the connecting rod 4 can be elastically deformed in the extension direction of the rotating shaft 41. When the connecting rod 4 is between the second slideway 52 and the handle 2, the connecting rod 4 is compressed and deformed to adapt to the space between the second slideway 52 and the handle 2.

[0067] In this embodiment, there are two positioning members, which are symmetrically arranged on both sides of the handle 2; correspondingly, there are two limit blocks 3, two protrusions 32 and two guide grooves 5.

[0068] In order to improve the safety and convenience of household appliances, Figure 4As shown, 11 is provided with a first micro switch 8 and a second micro switch 9, and the handle 2 is provided with a first contact 24 and a second contact 25 at intervals along its moving direction. When the handle 2 is in the first position, the first contact 24 triggers the first micro switch 8. At this time, it is judged that the user does not intend to open the door body 1. Through the signal change, the controller can control the operation of the household appliance to improve the user experience; when the handle 2 is in the second position, the second contact 25 triggers the second micro switch 9. At this time, it is judged that the user intends to open the door body 1. Through this signal change, the controller can interrupt the working program of the household appliance, such as the cleaning program of the washing machine, to prevent hot water from splashing out of the machine and improve safety. The controller controls whether the household appliance works or not, which is a prior art and will not be repeated here.

[0069] The movement process of the handle 2 of this embodiment is as follows:

[0070] like Figure 1 , 6 As shown, the handle 2 is in the first position. Figure 6 The upward force of the first elastic member 21 on the handle 2 and the clockwise moment of the second elastic member 7 on the positioning portion 42 are both blocked by the limit block 3 and the protrusion 32, so that the limit block 3 and the positioning portion 42 are in conflict with each other, and the two are in a mutually locked state, the handle 2 is positioned in the groove 11, the outer wall surface of the handle 2 is flush with the outer wall surface of the door body 1, the connecting rod 4 is deformed in the direction along the rotating shaft 41, and the first contact 24 triggers the first micro switch 8;

[0071] The handle 2 is pressed by an external force, so that the handle 2 drives the connecting rod 4 to move downward to the third position. At this time, the positioning portion 42 and the protrusion 32 are staggered in the vertical direction. At this time, the connecting rod 4 rotates to the corner of the second slide groove under the action of the second elastic member 7, as shown in FIG. Figure 8 As shown;

[0072] Then, the handle 2 moves upward under the action of the first elastic member 21, driving the connecting rod 4 to rise, and the positioning portion 42 moves along the second slide 52 to the first section 511 of the first slide 51, and the connecting rod 4 returns to a free state until the positioning portion 42 moves to abut against the second end of the first section 511, and the handle 2 moves to the second position, so that the handle 2 can be pulled. Fig.10 As shown, at this time, the handle 2 is not completely separated from the groove 11, blocking the notch of the groove 11, ensuring the appearance and preventing foreign matter from entering the groove 11; the second contact 25 triggers the second micro switch 9;

[0073] When the handle 2 needs to be retracted, the handle 2 is pressed to overcome the force of the first elastic member 21, and the positioning portion 42 moves along the first section 511 of the first slideway 51. When passing the first step 53 ( Fig.12Because the first step 53 is relatively steep, the positioning portion 42 cannot move from the first section 511 to the second slideway 52. ​​The positioning portion 42 will continue to move along the second section 512 of the first slideway 51 until it moves to the second step 54 ( Fig.14 The positioning portion 42 passes over the second step 54 and enters the second slideway 52, and then the connecting rod 4 swings under the action of the second elastic member 7, and the positioning portion 42 moves along the second slideway 52. ​​When the positioning portion 42 moves to a position about to face the protrusion 32, the positioning portion 42 moves upward under the action of the second elastic member 7 until the positioning portion 42 abuts against the limit block 3 and the protrusion 32, thereby achieving the positioning of the handle 2. Figure 6 As shown, the first contact 24 triggers the first micro switch 8 .

[0074] In this embodiment, a purely mechanical structure is used between the handle 2 and the groove 11 to achieve locking and unlocking, and the working reliability is high.

[0075] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Since the embodiments disclosed in the present invention can be arranged in different directions, these terms indicating directions are only for illustration and should not be regarded as limitations. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

Claims

1. A door structure for household appliances, comprising: A door body (1), wherein a groove (11) with one side open is formed on an outer wall surface of the door body (1); A handle (2) is movably arranged in a groove (11) of a door body (1); the handle (2) can be in a first position and a second position relative to the door body (1); when the handle (2) is in the first position, the handle (2) is hidden in the groove (11); when the handle (2) is in the second position, the handle (2) is at least partially located outside the groove (11) and protrudes from the outer wall surface of the door body (1); the direction in which the handle (2) moves toward the outside of the groove (11) is defined as a first direction, and the direction in which the handle (2) moves toward the groove (11) is defined as a second direction; A first elastic member (21) is disposed in the groove (11) and acts on the handle (2) so that the handle (2) always maintains a tendency to move along a first direction; It is characterized in that Also includes A positioning member movably disposed on a side wall of the handle (2), the positioning member comprising a positioning portion (42); A limit block (3) is arranged on the wall surface of the groove (11); when the handle (2) is in the first position, the limit block (3) is located on the path of the positioning portion (42) moving along the first direction; The convex block (32) is arranged on the limit block (3); the positioning member is moved so that the moving direction in which the positioning portion (42) and the limit block (3) are offset in the first direction is defined as a third direction; when the handle (2) is in the first position, the convex block (32) is located on the path of the positioning portion (42) moving along the third direction and the two are against each other; and the handle (2) can move from the first position to the third position along the second direction; when the handle (2) is in the third position, the positioning portion (42) is away from the limit block (3), and the positioning portion (42) and the convex block (32) are offset in the third direction; The second elastic member (7) acts on the positioning member to ensure that the positioning member always maintains a tendency to move along the third direction; A guide groove (5) is provided on the wall surface of the groove (11), the guide groove (5) comprising a first slideway (51) and a second slideway (52), the first slideway (51) comprising a first section (511) and a second section (512) which are sequentially arranged and connected along the second direction, the first section (511) extending along the first direction, and the second section (512) extending along the second direction in a direction away from the first section (511); The connection point between the first end of the first section (511) and the first end of the second section (512) is connected to one end of the second slideway (52), and the other end of the second slideway (52) is connected to the second end of the second section (512); the second slideway (52) and the second section (512) enclose the limit block (3) and the protrusion (32); the positioning portion (42) has a tendency to slide back and forth along the first section (511), the second section (512), the second slideway (52), and the first section (511) under the action of the first elastic member (21) and the second elastic member (7); the portion of the second slideway (52) corresponding to the bottom wall of the limit block (3) allows the positioning portion (42) to move along the second direction and the first direction; The height of the second slide (52) is higher than that of the first slide (51); one end of the second slide (52) is connected to the first slide (51) via a first step (53) with a reduced slope; the other end of the second slide (52) is connected to the first slide (51) via a second step (54) with a reduced slope; the slope of the first step (53) is steeper than that of the second step (54).

2. The door structure according to claim 1, characterized in that: The positioning member also includes a connecting rod (4) extending along the second direction, the first end of the connecting rod (4) is rotatably connected to the handle (2) via a rotating shaft (41), the second end of the connecting rod (4) is provided with the positioning portion (42), and the rotating shaft (41) and the positioning portion (42) are arranged at intervals along the second direction; the protrusion (32) is formed on the wall surface of the limiting block (3) adjacent to the bottom wall of the groove (11).

3. The door structure according to claim 1, characterized in that: The plane where the first step (53) is located is perpendicular to the plane where the first slideway (51) is located; the plane where the second step (54) is located is inclined relative to the plane where the first slideway (51) is located, and the angle between the two is an obtuse angle.

4. The door structure according to claim 2, characterized in that: The connecting rod (4) can generate elastic deformation in the extension direction of the rotating shaft (41).

5. The door structure according to claim 1, characterized in that: The second end of the first section (511) is closed.

6. The door structure according to any one of claims 1 to 5, characterized in that: A first micro switch (8) and a second micro switch (9) are provided in the groove (11); a first contact (24) and a second contact (25) are provided on the handle (2) at intervals along a second direction; when the handle (2) is in a first position, the first contact (24) triggers the first micro switch (8); and when the handle (2) is in a second position, the second contact (25) triggers the second micro switch (9).

7. The door structure according to any one of claims 1 to 5, characterized in that: When the handle (2) is in the first position, the handle (2) is embedded in the groove (11) and is flush with the outer wall surface of the door body (1).

8. The door structure according to any one of claims 1 to 5, characterized in that: The handle (2) is provided with a hand grip groove (23) for facilitating the insertion of a user's finger; when the handle (2) is in the second position, at least a portion of the hand grip groove (23) is exposed outside the groove (11).

9. The door structure according to any one of claims 1 to 5, characterized in that: The handle (2) comprises a body and a panel (22) arranged on the outer wall surface of the body.

10. A household appliance using the door structure according to any one of claims 1 to 9, characterized in that: It also includes a box body with an inner cavity, one side of the box body is open, the door body (1) is movably arranged at the opening of the inner cavity, so as to open and close the opening of the inner cavity, and the notch of the groove (11) on the door body (1) faces away from the opening of the inner cavity.

11. The household appliance according to claim 10, characterized in that: The household appliance is a cleaning machine, and the inner cavity is a washing cavity.

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