Household appliance

Abstract

The utility model relates to a household appliance which comprises a machine shell, a door body and a door hinge assembly, the door hinge assembly comprises a door hinge and a pull rope, the household appliance further comprises a movable rod, the movable rod is located outside a cavity and close to the door body, and the first end of the movable rod is connected with the second end of the pull rope; the protruding part and the movable rod are arranged on the same side, the first position, deviating from the center of the protruding part, of the protruding part is restrained on the side wall plate of the machine shell and located between the movable rod and the door body, and the peripheral wall of the protruding part acts on the second end of the movable rod; the power output end of the driving mechanism is in driving connection with the first position of the protruding piece and used for driving the protruding piece to rotate around the axis of the first position, and therefore the first part, away from the first position, of the peripheral wall of the protruding piece pushes the movable rod to move in the direction away from the door body to be in the door opening state. The elastic piece enables the movable rod to always have the tendency of moving towards the door body to abut against the corresponding position, abutting against the second part, close to the first position, of the outer peripheral wall of the protruding piece. In the whole process, manual pushing and pulling are not needed, and more labor is saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of household appliances, and in particular relates to a household appliance with a door body. Background Art

[0002] Existing electrical appliances, such as steamers, steam ovens, washing machines, etc., all include a box body with a functional inner cavity and a door body disposed at an opening of the box body and capable of opening or closing the opening.

[0003] For example, the Chinese utility model patent "Dishwasher", whose patent number is ZL201520248676.2 (authorization announcement number is CN204618145U), discloses a dishwasher, including: a body, a chamber with an open front end defined in the body; a door body, the door body is arranged at the opening of the chamber, and the lower end of the door body is pivotally connected to the body to open and close the chamber; a door lock, the door lock is arranged on the body and connected to the upper end of the door body to lock and unlock the door body; an electric control board, the electric control board is connected to the door lock and controls the door lock to lock and unlock the door body; a connecting piece, the connecting piece is arranged between the body and the door body, a part of the connecting piece is connected to the body and the other part is detachably connected to the door body, and the connecting piece limits the opening angle of the door body relative to the body when connected to the door body.

[0004] Although the above-mentioned door body can be automatically unlocked and opened, it still needs to be manually pulled open or pushed back, which is laborious and does not provide a good user experience.

[0005] Therefore, it is necessary to further improve existing household appliances. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide a household appliance which can automatically open and close the door in view of the current status of the above-mentioned prior art.

[0007] The technical solution adopted by the utility model to solve the above technical problems is: a household appliance, comprising:

[0008] a housing having an open chamber;

[0009] A door body is rotatably disposed at the opening of the housing to open and close the opening;

[0010] A door hinge assembly, used to realize the rotational connection between the door body and the housing, comprising a door hinge arranged on one of the two opposite sides of the door body and a pull rope connecting the door hinge and the housing, wherein the door hinge is rotatably arranged on the housing, and a first end of the pull rope is connected to the door hinge;

[0011] Characterized in that the door hinge assembly also includes:

[0012] A movable rod, which is located outside the chamber and adjacent to the door body and extends along the arrangement direction of the door body and the housing, and the first end of the movable rod is connected to the second end of the pull rope;

[0013] A convex member is arranged on the same side as the movable rod, the convex member is constrained on the side wall plate of the housing at a first position deviating from the center thereof and is located between the movable rod and the door body, and the outer peripheral wall of the convex member acts on the second end of the movable rod;

[0014] A driving mechanism, whose power output end is drivingly connected to the first position of the protruding member, is used to drive the protruding member to rotate around the axis of the first position, so that the first part of the outer peripheral wall of the protruding member away from the first position pushes the movable rod to move away from the door body to the door opening state;

[0015] An elastic member acts on the movable rod, and the elastic member makes the movable rod always have a tendency to move toward the door body until it abuts against the second part of the outer peripheral wall of the protruding member close to the first position and is in a door closing state.

[0016] There are many structural forms of the protrusion, which can be in the form of a cam, other eccentric wheels, or a triangle with smoothly rounded corners. However, preferably, the protrusion is a cam, and the outer peripheral wall of the cam has a laterally extending protrusion, and at least a portion of the outer peripheral edge of the protrusion is the first part.

[0017] Specifically, the outer peripheral wall of the convex portion includes two straight line segments and an arc segment located between the two straight line segments and smoothly connected to the two straight line segments. The straight line segments are smoothly connected to the corresponding positions of the outer peripheral wall of the cam. The two straight line segments gradually incline toward each other in the direction away from the first position. The second part includes the position of the straight line segment of the convex portion away from the arc segment and the part of the cam except the convex portion. When the door is in the open state, the arc segment abuts against the second end of the movable rod.

[0018] In order to facilitate the function of the elastic member, a mounting plate is provided on the outer wall surface of the side wall plate of the casing at a position corresponding to the movable rod, and a through hole is provided on the mounting plate for the movable rod to pass through. The outer peripheral wall of the movable rod has a flange on the part located between the first position of the protrusion and the mounting plate. The elastic member is a spring mounted on the periphery of the movable rod, and the two ends of the spring can respectively resist the mounting plate and the flange.

[0019] In order to facilitate the protrusion to steadily push the movable rod to move, the end of the second end of the movable rod has an extension portion whose outer peripheral wall matches the outer peripheral wall of the protrusion.

[0020] There are various structural forms of the driving mechanism, as long as it can realize the rotation of the protrusion. It can be in the form of a single motor or in the form of a push rod motor and a connecting rod assembly. However, preferably, the driving mechanism is a motor, and the output shaft of the motor is installed at the first position of the protrusion, and the axis of the output shaft is the axis of the protrusion.

[0021] Preferably, the motor is located on the inner side of the side wall plate of the casing.

[0022] In order to at least make the movement of the pull rope smoother, a first roller is installed on the side wall plate of the casing, and the first roller is located on the side of the movable rod away from the door body. The second end of the pull rope is connected to the movable rod after passing around the first roller.

[0023] In order to further make the movement of the pull rope smoother, a second roller is provided on the side wall panel of the casing at a position above the movable rod, and the second roller is located on the side of the first roller close to the door body. The second end of the pull rope is connected to the movable rod after passing around the lower edge of the second roller and the first roller in sequence.

[0024] As any preferred embodiment of the above scheme, the household appliance is any one of a washing machine, a steamer, a steamer-oven integrated machine, a steamer-microwave integrated machine, and a steamer-oven-microwave integrated machine.

[0025] The chamber may have an opening at the top or at the front, but preferably, the chamber has the opening at the front, the door hinge is rotatably arranged at the lower position of the casing, and the rotation axis of the door hinge extends in the left and right directions, and the protrusion and the movable rod are both located below the door hinge.

[0026] In order to ensure the reliability of door opening and closing, there are two groups of door hinge assemblies, which are arranged at intervals along the left and right directions.

[0027] Preferably, the casing includes an inner shell and a base located below the inner shell, the chamber is located in the inner shell, and the side wall plate is a side plate of the base.

[0028] Compared with the prior art, the advantages of the utility model are: in the household appliance, in the door hinge assembly that realizes the rotation of the door body and the casing, the driving mechanism drives the convex part to rotate, so that the convex part acts on the second end of the movable rod and then drives the movable rod to move away from the door body, so that the door is opened under the action of the pull rope and the door hinge, and when closing the door, the convex part is driven by the driving mechanism to rotate to the second part close to the first position corresponding to the second end of the movable rod, and under the action of the elastic part, the movable rod moves toward the door body until it is against the second part, and then the door body is closed by the action of the pull rope and the door hinge. The whole process does not require manual pushing and pulling, which is more labor-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a partial structural schematic diagram of this embodiment;

[0030] Figure 2 for Figure 1 Schematic diagram of the enlarged structure of part I in FIG.

[0031] Figure 3 for Figure 1 A cross-sectional view of

[0032] Figure 4 for Figure 3 Cross-sectional view of part II in FIG. DETAILED DESCRIPTION

[0033] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0034] The household appliance is any one of a washing machine, a steamer, a steamer-oven integrated machine, a steamer-microwave integrated machine, and a steamer-oven-microwave integrated machine. In this embodiment, the household appliance is a washing machine for washing dishes or fruits and vegetables. Figures 1 to 3 As shown, the household appliance comprises a housing 1, a door body 2 and a door hinge assembly 3. The housing 1 has an open chamber 110. In this embodiment, the housing 1 comprises an inner container 11 and a base 12 located under the inner container 11. The inner container 11 has a chamber 110 with an open front side, and can also be in the form of an open top.

[0035] The left and right side panels of the base 12 are the side wall panels 121. The door body 2 is rotatably disposed at the opening of the housing 1 to open and close the opening. The door hinge assembly 3 is used to realize the rotatable connection between the door body 2 and the housing 1. In this embodiment, there are two sets of door hinge assemblies 3, which are spaced apart along the left and right directions.

[0036] The structures of the two door hinge assemblies are the same, and the right door hinge assembly 3 is used as an example for description. The door hinge assembly includes a door hinge 31 arranged on the right side of the door body 2 and a pull rope 32 connecting the door hinge 31 and the side wall plate 121 of the housing 1. The door hinge 31 is rotatably arranged at the lower position of the side wall plate 121 of the housing 1, and the rotation axis of the door hinge 31 extends along the left-right direction. The first end of the pull rope 32 is connected to the door hinge 31.

[0037] The movable rod 33 is located outside the chamber 110 and adjacent to the door body 2, and is located below the door hinge 31, and extends along the arrangement direction of the door body 2 and the casing 1, that is, extends along the front and rear direction. The first end (that is, the rear end) of the movable rod 33 is connected to the second end of the pull rope 32.

[0038] The convex part is arranged on the same side as the movable rod 33, and the first position 340 of the convex part deviating from the center thereof is constrained on the side wall plate 121 of the casing 1 and is located between the movable rod 33 and the door body 2, and the outer peripheral wall of the convex part acts on the second end of the movable rod 33. Then the convex part is also located below the door hinge. The aforementioned convex part is a cam 34, and the outer peripheral wall of the cam 34 has a convex part 341 extending laterally outward, and a partial area of ​​the outer peripheral edge of the convex part 341 is the first part of the outer peripheral wall of the cam away from the first position 340. The power output end of the driving mechanism is connected to the first position 340 of the cam 34, and is used to drive the cam to rotate around the axis of the first position 340, so that the first part of the outer peripheral wall of the cam 34 pushes the movable rod 33 to move away from the door body 2 to the door opening state. The outer peripheral wall of the protrusion 341 includes two straight segments 3411 and an arc segment 3412 located between the two straight segments 3411 and connected to the two straight segments 3411 in a smooth transition. The straight segment 3411 is connected to the corresponding position of the outer peripheral wall of the cam 34 in a smooth transition. The two straight segments 3411 gradually tilt toward each other in a direction away from the first position 340. That is, in the door open state, the arc segment 3412 of the protrusion 341 abuts against the second end of the movable rod 33. In addition, the end of the second end (front end) of the movable rod 33 has an extension portion 332 whose outer peripheral wall matches the outer peripheral wall of the cam 34.

[0039] The driving mechanism is a motor 35 , which is located inside the side wall 121 of the housing 1 . The output shaft 351 of the motor 35 is installed at the first position 340 of the cam 34 , and the axis of the output shaft 351 is the axis of the cam 34 .

[0040] The elastic member acts on the movable rod 33, and the elastic member makes the movable rod 33 always have a tendency to move toward the door body 2 until it abuts against the second part of the outer peripheral wall of the protrusion away from the first position and then enters the door closing state. The aforementioned second part includes the position of the straight section 3411 of the protrusion 341 away from the arc section 3412 and the part of the cam 34 other than the protrusion 341. The outer wall surface of the side wall plate 121 of the housing 1 is provided with a mounting plate 122 at a position corresponding to the movable rod 33, and the mounting plate 122 is provided with a through hole through which the movable rod 33 passes. The outer peripheral wall of the movable rod 33 has a flange 331 on the part located between the first position 340 of the cam 34 and the mounting plate 122. In this embodiment, the flange 331 is located in front of the mounting plate 122. The elastic member is a spring 36 sleeved on the outer periphery of the movable rod 33, and the two ends of the spring 36 can respectively abut against the mounting plate 122 and the flange 331.

[0041] In addition, in order to make the movement of the pull rope smoother, a first roller 37 is installed on the side wall plate 121 of the housing 1, and a second roller 38 is arranged on the side wall plate 121 of the housing 1 at a position above the movable rod 33. The first roller 37 is located on the side of the movable rod 33 away from the door body 2, and the second roller 38 is located on the side of the first roller 37 close to the door body 2, that is, the first roller 37 is located behind the movable rod 33, and the second roller 38 is located in front of the first roller 37. The second end of the pull rope 32 passes around the lower edge of the second roller 38 and the first roller 37 in sequence and is connected to the movable rod 33.

[0042] In the specification of the present invention, terms indicating directions, such as "front", "rear", "upper", "lower", "left", "right", "side", "top", "bottom", etc., are used to describe various exemplary structural parts and elements of the present invention, but these terms are used here only for the purpose of convenience of description and are determined based on the exemplary orientations shown in the drawings. Since the embodiments disclosed in the present invention can be arranged in different directions, these terms indicating directions are only used as illustrations and should not be regarded as limitations.

Claims

1. A household appliance comprising: A housing (1) having an open chamber (110); A door body (2) is rotatably arranged at the opening of the casing (1) to open and close the opening; The door hinge assembly (3) is used to realize the rotational connection between the door body (2) and the housing (1), and comprises a door hinge (31) arranged on one of the two opposite sides of the door body (2) and a pull rope (32) connecting the door hinge (31) and the housing (1), wherein: The door hinge (31) is rotatably arranged on the housing (1), and the first end of the pull rope (32) is connected to the door hinge (31); Characterized in that the door hinge assembly (3) also includes: a movable rod (33) located outside the chamber (110) and adjacent to the door body (2) and extending along the arrangement direction of the door body (2) and the housing (1), wherein a first end of the movable rod (33) is connected to a second end of the pull rope (32); a convex member arranged on the same side as the movable rod (33); the convex member is constrained on the side wall plate (121) of the housing (1) at a first position (340) deviating from the center thereof, and is located between the movable rod (33) and the door body (2); the outer peripheral wall of the convex member acts on the second end of the movable rod (33); A driving mechanism, whose power output end is drivingly connected to the first position (340) of the protruding member, and is used to drive the protruding member to rotate around the axis of the first position (340), so that the first part of the outer peripheral wall of the protruding member away from the first position (340) pushes the movable rod (33) to move in a direction away from the door body (2) to an open state; An elastic member acts on the movable rod (33), and the elastic member causes the movable rod (33) to always have a tendency to move toward the door body (2) until it abuts against a second portion of the outer peripheral wall of the protruding member close to the first position (340) and is in a door closing state.

2. The household appliance according to claim 1, characterized in that: The convex part is a cam (34), and a convex portion (341) extending laterally outward is provided on the outer peripheral wall of the cam (34), and at least a part of the outer peripheral edge of the convex portion (341) is the first portion.

3. The household appliance according to claim 2, characterized in that: The outer periphery of the protrusion (341) includes two straight segments (3411) and an arc segment (3412) located between the two straight segments (3411) and smoothly connected to both of them. The straight segment (3411) is smoothly connected to the corresponding position of the outer peripheral wall of the cam (34). The two straight segments (3411) gradually tilt toward each other in the direction away from the first position (340). The second part includes the position of the straight segment (3411) of the protrusion (341) away from the arc segment (3412) and the part of the cam (34) other than the protrusion (341). When the door is in the open state, the arc segment (3412) abuts against the second end of the movable rod (33).

4. The household appliance according to claim 1, characterized in that: A mounting plate (122) is provided on the outer wall surface of the side wall plate (121) of the casing (1) at a position corresponding to the movable rod (33); a through hole is provided on the mounting plate (122) for the movable rod (33) to pass through; the outer peripheral wall of the movable rod (33) has a flange (331) on the portion located between the first position (340) of the protruding part and the mounting plate (122); the elastic part is a spring (36) sleeved on the outer periphery of the movable rod (33); the two ends of the spring (36) can respectively abut against the mounting plate (122) and the flange (331).

5. The household appliance according to claim 1, characterized in that: The end portion of the second end of the movable rod (33) has an extension portion (332) whose outer peripheral wall matches the outer peripheral wall of the protruding part.

6. The household appliance according to claim 1, characterized in that: The driving mechanism is a motor (35), the output shaft (351) of the motor (35) is installed at the first position (340) of the protruding part, and the axis of the output shaft (351) is the axis of the protruding part.

7. The household appliance according to claim 6, characterized in that: The motor (35) is located on the inner side of the side wall plate (121) of the housing (1).

8. The household appliance according to claim 1, characterized in that: A first roller (37) is installed on the side wall plate (121) of the casing (1), and the first roller (37) is located on a side of the movable rod (33) away from the door body (2). The second end of the pull rope (32) passes around the first roller (37) and is connected to the movable rod (33).

9. The household appliance according to claim 8, characterized in that: A second roller (38) is provided on the side wall plate (121) of the casing (1) at a position above the movable rod (33); the second roller (38) is located on a side of the first roller (37) close to the door body (2); and the second end of the pull rope (32) is connected to the movable rod (33) after passing around the lower edge of the second roller (38) and the first roller (37) in sequence.

10. The household appliance according to claim 1, characterized in that: The household appliance is any one of a washing machine, a steamer, a steamer-oven integrated machine, a steamer-microwave integrated machine, and a steamer-oven-microwave integrated machine.

11. The household appliance according to any one of claims 1 to 10, characterized in that: The front side of the chamber (110) has the opening, the door hinge (31) is rotatably arranged at the lower position of the casing (1), and the rotation axis of the door hinge (31) extends along the left-right direction, and the protrusion and the movable rod (33) are both located below the door hinge (31).

12. The household appliance according to claim 11, characterized in that: The door hinge components (3) are in two groups and are arranged at intervals along the left-right direction.

13. The household appliance according to claim 11, characterized in that: The housing (1) comprises an inner container (11) and a base (12) located below the inner container (11); the chamber (110) is located in the inner container (11); and the side wall plate (121) is a side plate of the base (12).

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