Hover assembly for a dishwasher and dishwasher

Abstract

The utility model relates to a kind of for dish-washing machine's hovering assembly and dish-washing machine, hovering assembly includes tension spring, along front-back direction extension, the front end of tension spring is used to be fixedly connected with the base of dish-washing machine;Friction wheel, for relatively fixed and set on the base of dish-washing machine, the axis of the friction wheel extends along left-right direction;Friction band, with certain width, one end is connected with the rear end of tension spring, the other end passes through friction wheel and is fixedly connected with the rotating member for driving door body relative to box rotation, and in the process that door body is opened relative to box, the friction band is always in contact with friction wheel.Door body rotation drives the moving process of friction band, the friction between friction band and friction wheel is big, to make the sliding friction torque between friction band and friction wheel balance door body gravity moment and tension spring tension moment, to be able to have hovering effect to different weight door body in wide range, to make replaceable door body selection more, and dish-washing machine is good in versatility.

Description

Technical Field

[0001] This utility model relates to a dishwasher, specifically to a dishwasher suspension component and the dishwasher itself. Background Technology

[0002] Automatic door opening technology is a current trend in dishwasher technology development. Dishwashers with automatic door opening can use handle-less door panels, achieving the door opening function through automatic opening technology, improving the dishwasher's aesthetics and intelligence. In addition, automatic door opening technology can also be applied to automatically open the door for drying after the dishwasher's washing cycle is completed, thereby reducing the dishwasher's energy consumption.

[0003] Some existing automatic door opening technologies achieve this by means of gravity: after the door is unlocked, it opens under gravity, and a hovering module controls the opening angle of the door. For example, the Chinese utility model patent disclosed in patent application number CN202322307324.7 (publication number CN220344365U), entitled "A Household Appliance," includes a connecting component 5 comprising an elastic element, a pull rope 52, and a roller 53. The pull rope 52 is arranged along the front-to-back direction, and its front end is connected to the inclined section 421 of the second connecting rod 42. The elastic element acts on the rear end of the pull rope 52, causing the rear end of the pull rope 52 to always have a tendency to move backward. The roller 53 is rotatably mounted on the side wall of the base of the housing 1, with its rotation axis extending along the left-to-right direction. The roller 53 is located in front of the elastic element, and the pull rope 52 is partially wrapped around and below the roller 53. In this embodiment, the elastic element is a tension spring 51 arranged front to back. The rear end of the tension spring 51 is connected to the housing 1, and the front end of the tension spring 51 is connected to the inclined section 421 of the second connecting rod 42 via a pull rope 52. When the door is open, as... Figure 2 As shown, the two segments of the pull cord 52 located on the front and rear sides of the roller 53 form an included angle β, which satisfies: 100°≤β≤125°. The aforementioned combination of the door hinge and the tension spring allows the tension spring to meet the suspension requirement of 30-90°. Under the action of the aforementioned door hinge, it provides a door-closing assistance effect within the range of <30°, giving the user a good experience when closing the door.

[0004] With improved user installation experience, dishwashers with interchangeable doors have become a trend. However, the weight of interchangeable doors varies greatly, causing the doors to not be able to hover properly.

[0005] Because of the current structural design, the pull rope and roller are relatively stationary during movement, generating rolling friction torque to compensate for the difference between the door's weight torque and the tension spring torque, thus allowing the door to hover. However, since this rolling friction torque is relatively small, and the adjustment range of the tension spring is limited, different tension spring designs are required for different door weight ranges (redesigning the tension spring requires calculation and verification), which is very cumbersome. Utility Model Content

[0006] The first technical problem to be solved by this utility model is to provide a hovering component for dishwashers that can be adapted to doors of different weights, in light of the current state of the technology.

[0007] The second technical problem to be solved by this utility model is to provide a dishwasher that uses the above-mentioned hovering component, in view of the current state of the prior art.

[0008] The technical solution adopted by this utility model to solve the first technical problem mentioned above is: a hovering component for a dishwasher, comprising...

[0009] A tension spring extends in the front-to-back direction, and its front end is used to securely connect to the base of the dishwasher.

[0010] Its characteristic is that it also includes

[0011] A friction wheel is fixedly mounted on the base of the dishwasher, and the axis of the friction wheel extends in the left-right direction.

[0012] The friction strip has a certain width. One end is connected to the rear end of the tension spring, and the other end passes around the friction wheel to be fixedly connected to the rotating component that drives the door to rotate relative to the box. During the process of the door opening relative to the box, the friction strip is always in contact with the friction wheel.

[0013] To further increase the friction between the friction wheel and the friction belt, there are at least two friction wheels.

[0014] To ensure sufficient friction between the friction wheel and the friction belt, the contact area between at least one of the friction wheels and the friction belt must be the product of half the circumference of the friction wheel and the width of the friction belt. A larger contact area between the friction wheel and the friction belt results in greater friction.

[0015] In the above scheme, there are two friction wheels that are spaced apart in the front-rear direction. The axis of the friction wheel located on the rear side is lower than the axis of the friction wheel located on the front side. The vertical distance between the axes of the two friction wheels is c, and the vertical distance between the axes of the two friction wheels is d.

[0016] To reduce costs, one end of the friction band is connected to a tension spring via a first pull rope, and the other end of the friction band is connected to a rotating component via a second pull rope. The first pull rope is always in a horizontal position extending in the front-to-back direction. The pull rope is less expensive than a friction band of a certain width, and it is easy to tie knots on the pull rope for connection to other components.

[0017] In this application, the end of the first pull rope is formed with a first rope buckle for hooking with the rear end of the tension spring, and the end of the second pull rope is formed with a second rope buckle for hooking with the rotating member.

[0018] During the opening and closing of the door, the pull rope is subjected to pulsating cyclic stress at the friction wheel on the rear side. Its lifespan is directly related to the diameter of the friction wheel. Therefore, preferably, the first pull rope and the second pull rope are both cylindrical with a diameter of a, and the diameter of the friction wheel is b, where b ≥ 10a.

[0019] To prevent the friction wheels from being pulled off, the first pull rope must always remain horizontal, and the vertical distance between the two friction wheels must be equal to the diameter of the friction wheels, where the diameter of the friction wheels is b and c = b.

[0020] To ensure that the friction belt and friction wheel are in constant contact during the opening and closing of the door, and that the friction belt does not interfere with the tension spring and rotating parts, the total length of the first pull rope, the second pull rope, and the friction belt is e, where 1.5d≤e≤2d.

[0021] The technical solution adopted by this utility model to solve the second technical problem mentioned above is: a dishwasher, characterized in that it includes...

[0022] The box-shaped structure has an open front.

[0023] The base is located at the bottom of the box.

[0024] The door is located at the front opening of the box body and can rotate back and forth;

[0025] The rotating component includes a first rod and a second rod that are perpendicular to each other. The connection between the first rod and the second rod is rotatably connected to the housing via a pin extending in the left-right direction. The first rod is mounted on the door, and the second rod is connected to a friction belt.

[0026] Compared with the prior art, the advantages of this utility model are as follows: By fixing the friction wheel, the friction between the friction belt and the friction wheel is large during the rotation of the door body and the movement of the friction belt. This allows the sliding friction torque between the friction belt and the friction wheel to balance the weight torque of the door body and the tension torque of the tension spring, so that it can have a hovering effect on doors of different weights over a wide range. This also allows for a wider selection of replaceable doors and good versatility of the dishwasher. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0028] Figure 2 for Figure 1 Enlarged view of point A;

[0029] Figure 3 for Figure 1 A partial structural diagram. Detailed Implementation

[0030] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0031] In the description of this utility model, it should be understood that, unless otherwise stated, "multiple" means two or more, and the terms "upper," "lower," "left," "right," "top," "bottom," "front," "rear," etc., indicate the orientation or positional relationship based on the direction or positional relationship shown in the drawings. They are only for the convenience of describing this utility model 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 utility model.

[0032] In the description of this utility model patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" 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 adhesive connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model patent based on the specific circumstances.

[0033] like Figures 1-3 As shown, the dishwasher of this preferred embodiment includes a cabinet 1, a base 2, a door 3, a rotating component 4, and a hovering assembly.

[0034] The front of the box 1 is open, the base 2 is located at the bottom of the box 1, and the door 3 is located at the front opening of the box 1 and can rotate back and forth to open or close the box 1.

[0035] The rotating component 4 is used to drive the door body 3 to rotate relative to the box body 1. The rotating component 4 includes a first rod and a second rod 41 that are perpendicular to each other. The connection between the first rod and the second rod 41 is rotatably connected to the box body 1 by a pin extending in the left and right direction. The first rod is installed on the door body 3, and the second rod 41 is connected to the second pull rope 9 of the suspension component.

[0036] The above are existing technologies and will not be elaborated further here.

[0037] The hovering assembly includes a tension spring 5, a friction wheel 6, a friction belt 7, a first pull rope 8, and a second pull rope 9.

[0038] The tension spring 5 extends in the front-to-back direction, and the front end of the tension spring 5 is fixedly connected to the base 2 of the dishwasher.

[0039] The friction wheel 6 is fixedly mounted on the base 2 of the dishwasher, and the axis of the friction wheel 6 extends in the left-right direction. The friction band 7 has a certain width, one end of which is connected to the rear end of the tension spring 5, and the other end passes around the friction wheel 6 and is fixedly connected to the rotating part 4. During the process of the door 3 opening relative to the cabinet 1, the friction band 7 is always in contact with the friction wheel 6.

[0040] Specifically, in this embodiment, one end of the friction band 7 is connected to the rear end of the tension spring 5 via a first pull rope 8, and the other end of the friction band 7 is connected to the rotating member 4 via a second pull rope 9. The first pull rope 8 is always in a horizontal state extending in the front-back direction, and the second pull rope 9 extends from back to front and upward. The friction band 7 is U-shaped, and its bent portion A surrounds the outer periphery of the rear friction wheel 6. The cost of the pull rope is lower than that of the friction band 7 with a certain width, and the pull rope is easy to knot for connection with other components. In this embodiment, the end of the first pull rope 8 has a first rope buckle 81 for hooking with the rear end of the tension spring 5, and the end of the second pull rope 9 has a second rope buckle 91 for hooking with the rotating member 4.

[0041] There are at least two friction wheels 6. Preferably, the contact area between at least one friction wheel 6 and the friction belt 7 is the product of half the circumference of the friction wheel 6 and the width of the friction belt 7. In this way, the contact area between the friction wheel 6 and the friction belt 7 is large, and the friction force is large.

[0042] In this embodiment, there are two friction wheels 6, which are spaced apart in the front-rear direction. The axis of the friction wheel 6 located on the rear side is lower than the axis of the friction wheel 6 located on the front side. The vertical distance between the axes of the two friction wheels 6 is c, the vertical distance between the axes of the two friction wheels 6 is d, and the diameter of the friction wheel 6 is b.

[0043] The pull rope is subjected to pulsating cyclic stress at the friction wheel 6 on the rear side. Its lifespan is directly related to the diameter of the friction wheel 6. Therefore, preferably, the first pull rope 8 and the second pull rope 9 are both cylindrical with a diameter of a, and the diameter of the friction wheel 6 is b, where b ≥ 10a.

[0044] To ensure that the friction wheel 6 is not pulled off, the first rope 8 must always remain horizontal, and the vertical distance between the two friction wheels 6 must be equal to the diameter of the friction wheel 6, c = b.

[0045] To ensure that the friction belt 7 and the friction wheel 6 are in constant contact during the opening and closing of the door, and that the friction belt 7 does not interfere with the tension spring 5 and the rotating part 4, the total length of the first pull rope 8, the second pull rope 9 and the friction belt 7 is e, where 1.5d≤e≤2d.

[0046] The hovering component in this embodiment ensures that during the rotation of the door 3 and the movement of the friction belt 7, the friction between the friction belt 7 and the friction wheel 6 is large, so that the sliding friction torque between the friction belt 7 and the friction wheel 6 balances the gravitational torque of the door 3 and the tension torque of the tension spring 5, so that the hovering effect can be achieved for door 3 of different weights over a wide range, so that there are many replaceable door 3 options and the dishwasher has good versatility.

[0047] The existing hovering components can achieve a weight range of 3-6 kg for the replaceable door body 3, while the hovering components of this embodiment can achieve a weight range of 2-10 kg for the replaceable door body 3.

Claims

1. A hovering assembly for a dishwasher, comprising: A tension spring (5) extends in the front-back direction, and the front end of the tension spring (5) is used to fix it to the base (2) of the dishwasher. Its features are, Also includes Friction wheel (6) is fixedly mounted on the base (2) of the dishwasher, and the axis of the friction wheel (6) extends in the left-right direction; The friction strip (7) has a certain width. One end is connected to the rear end of the tension spring (5), and the other end passes around the friction wheel (6) to be fixedly connected to the rotating part (4) that drives the door (3) to rotate relative to the box (1). During the process of the door (3) opening relative to the box (1), the friction strip (7) is always in contact with the friction wheel (6).

2. The hovering component according to claim 1, characterized in that: There are at least two friction wheels (6).

3. The hovering component according to claim 2, characterized in that: The contact area between at least one of the friction wheels (6) and the friction belt (7) is the product of half the circumference of the friction wheel (6) and the width of the friction belt (7).

4. The hovering component according to claim 2, characterized in that: There are two friction wheels (6) and they are spaced apart in the front-rear direction. The axis of the friction wheel (6) located on the rear side is lower than the axis of the friction wheel (6) located on the front side. The vertical distance between the axes of the two friction wheels (6) is c, and the vertical distance between the axes of the two friction wheels (6) is d.

5. The hovering assembly according to claim 4, characterized in that: One end of the friction band (7) is connected to the tension spring (5) via a first pull rope (8), and the other end of the friction band (7) is connected to the rotating member (4) via a second pull rope (9). The first pull rope (8) is always in a horizontal state extending in the front-back direction.

6. The hovering assembly according to claim 5, characterized in that: The end of the first pull rope (8) is formed with a first rope buckle (81) for hooking with the rear end of the tension spring (5), and the end of the second pull rope (9) is formed with a second rope buckle (91) for hooking with the rotating member (4).

7. The hovering assembly according to claim 5, characterized in that: The first pull rope (8) and the second pull rope (9) are both cylindrical with a diameter of a, and the friction wheel (6) has a diameter of b, where b ≥ 10a.

8. The hovering assembly according to claim 4, characterized in that: The diameter of the friction wheel (6) is b, and c = b.

9. The hovering assembly according to claim 5, characterized in that: The total length of the first pull rope (8), the second pull rope (9) and the friction belt (7) is e, where 1.5d≤e≤2d.

10. A dishwasher, characterized in that, include Box body (1), open at the front; The base (2) is located at the bottom of the box (1). The door (3) is located at the front opening of the box (1) and can rotate back and forth. The rotating component (4) includes a first rod and a second rod (41) that are perpendicular to each other. The connection between the first rod and the second rod (41) is rotatably connected to the box (1) by a pin extending in the left-right direction. The first rod is mounted on the door (3), and the second rod (41) is connected to the friction strip (7) as described in any one of claims 1 to 4.

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