CN215650934U

CN215650934U - Dish washing machine

Info

Publication number: CN215650934U
Application number: CN202023236855.4U
Authority: CN
Inventors: 索延华; 杨林
Original assignee: Qingdao Haier Dishwasher Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Dishwasher Co Ltd; Haier Smart Home Co Ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2022-01-28
Anticipated expiration: 2030-12-29

Abstract

The utility model relates to the technical field of household appliances, and particularly discloses a dish washing machine, which comprises a linkage mechanism, a door body and a shelf, wherein the shelf is horizontally movably arranged in a cavity of the dish washing machine, the door body can rotatably close or open the cavity, the linkage mechanism comprises a driving piece, a rack and a transmission gear set, and the driving piece is arranged on the inner side of the door body; the rack is arranged on the lower side of the shelf; the transmission gear set is in transmission connection between the driving piece and the rack, so that the shelf is driven to move out of the cavity at least partially when the door body is rotated to open the cavity, and the shelf is driven to move into the cavity when the door body is rotated to close the cavity. The linkage mechanism of the dish washing machine provided by the utility model converts the rotation of the door body into the translation motion of the shelf, and prevents a user from bending down to manually push and pull the shelf or drive the shelf to slide through the driving device.

Description

Dish washing machine

Technical Field

The utility model relates to the technical field of household appliances, in particular to a dish washing machine.

Background

The dish washing machine comprises a cavity, a door body and a shelf, wherein the door body is rotatably connected with an opening of the cavity to close or open the opening. The rack is used for placing tableware, is arranged in the cavity in a sliding manner, and is used for opening the door body and pulling out the rack from the cavity when the tableware needs to be taken and placed; when the tableware is required to be washed, the shelf is pushed into the cavity, and the door body is closed, so that the shelf is in a closed environment.

In the prior art, the rack needs to be pulled out by bending down manually, which causes inconvenience in using the dishwasher, or the rack is driven to slide by a driving means such as a motor, which results in an increase in the cost of the dishwasher.

SUMMERY OF THE UTILITY MODEL

One object of the present invention is to provide a dishwasher, which can simultaneously drive a rack to translate in one direction when a door body is opened and drive the rack to translate in the opposite direction when the door body is closed.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a dishwasher comprises a door body and a shelf, wherein the shelf is horizontally movably arranged in a cavity of the dishwasher and can rotatably close or open the cavity; the dishwasher further includes a linkage mechanism, the linkage mechanism including:

the driving piece is arranged on the inner side of the door body;

the rack is arranged on the lower side of the shelf;

and the transmission gear set is in transmission connection between the driving part and the rack so as to drive the shelf to move out of the cavity at least partially when the door body is rotated to open the cavity, and drive the shelf to move into the cavity when the door body is rotated to close the cavity.

Preferably, the driving part comprises an arc structure, the side part of the arc structure is connected with the door body, and teeth meshed with the transmission gear set are arranged along the circumference of the arc structure.

Preferably, the central angle corresponding to the circular arc structure is not less than 90 °, and the central angle corresponding to the circular arc structure is not more than 180 °.

Preferably, the transmission gear set comprises a starting driving wheel and a tail driven wheel which are in transmission connection, the starting driving wheel is meshed with the driving piece, the tail driven wheel is meshed with the rack, and the input linear speed of the starting driving wheel is smaller than the output linear speed of the tail driven wheel.

Preferably, the starting driving wheel is coaxially connected with the tail driven wheel, and the radius of the starting driving wheel is smaller than that of the driving piece and that of the tail driven wheel.

Preferably, the transmission gear set further includes an amplifying gear, the start driving wheel is coaxially connected with the amplifying gear, the radius of the start driving wheel is smaller than that of the driving member, the amplifying gear is engaged with the tail end driven wheel, and the radius of the amplifying gear is larger than that of the start driving wheel.

Preferably, two sets of the linkage mechanisms are arranged at intervals in a direction perpendicular to the sliding direction of the shelf.

Preferably, the door body rotates around a lower end thereof, and the linkage mechanism is connected to the lower end of the door body.

Preferably, the shelf and the cavity are connected through a guide assembly.

Preferably, the guide assembly comprises a guide rail and a sliding block, one of the guide rail and the sliding block is connected to the shelf, the other of the guide rail and the sliding block is connected to the cavity wall of the cavity, the sliding block is provided with a sliding groove, and the guide rail is arranged in the sliding groove in a sliding manner.

The utility model has the beneficial effects that:

when the swing door body to open a body, the door body drives the driving piece and rotates, the driving piece drives the transmission gear set to rotate, the transmission gear set drives the rack to translate along the extending direction of the rack, the rack is connected to the rack, and then the rack drives the rack to translate. When the door body is rotated and opened, the driving piece, the transmission gear set and the rack all move in opposite directions, so that the shelf moves in opposite directions.

The driving part and the rack are connected through the driving of the transmission gear set, so that the transmission ratio of the transmission gear set can be set as required, and the shelf can move for a proper distance after the door body is switched between an opening state and a closing state.

The linkage mechanism of the dish washing machine can convert the rotation of the door body into the translation motion of the rack, so that the phenomenon that a user bends down to manually push and pull the rack or drives the rack to slide through the driving device is avoided.

Drawings

Fig. 1 is a schematic structural diagram of a dishwasher according to a first embodiment of the present invention, when a door is in a closed state;

FIG. 2 is a schematic structural diagram of a dishwasher according to a first embodiment of the present invention, in which a door is in an opening process;

FIG. 3 is a schematic structural diagram of a dishwasher according to a first embodiment of the present invention, when a door is in an open state;

fig. 4 is a schematic structural diagram of a dishwasher according to a second embodiment of the present invention, when a door is in a closed state.

In the figure:

10. a linkage mechanism; 20. a shelf; 30. a door body; 40. a cavity;

101. a drive member; 102. a drive gear set; 1021. a starting end driving wheel; 1022. a tail driven wheel; 1023. the gear is enlarged.

Detailed Description

The technical scheme of the utility model is further explained by the specific implementation mode in combination with the attached drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model. It should be further noted that, for the convenience of description, only some but not all of the elements associated with the present invention are shown in the drawings.

In the present invention, the terms of orientation such as "upper", "lower", "left", "right", "inner" and "outer" are used in the case where no description is made on the contrary, and these terms of orientation are used for easy understanding, and thus do not limit the scope of the present invention.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example one

The present embodiment provides a linkage mechanism 10 for use in a dishwasher, but is not limited thereto, and may also be used in other devices having a rotating door 30 and a translatable shelf 20, such as a washing device, a drying device, or a disinfecting device. The shelf 20 may be used to hold items such as clothes, dishes, or workpieces that need to be dried or sterilized within the appliance. The linkage mechanism 10 can drive the shelf 20 to horizontally move while the door body 30 rotates, so that the purpose that when the door body 30 is opened, the linkage mechanism 10 drives the shelf 20 to horizontally move along one direction, and when the door body 30 is closed, the linkage mechanism 10 drives the shelf 20 to horizontally move along the opposite direction is achieved.

As shown in fig. 1, the linkage mechanism 10 provided in this embodiment is connected between the rotating door 30 and the rack 20, and the linkage mechanism 10 includes a driving member 101, a transmission gear set 102 and a rack (not shown). The driving member 101 is used for driving the transmission gear set 102 to rotate, the transmission gear set 102 is used for driving the rack to translate, and the rack drives the shelf 20 to translate.

Specifically, the driving member 101 is disposed inside the door 30, and the door 30 rotates to drive the driving member 101 to rotate. The rack is disposed at the lower side of the shelf 20, and further, the rack is fixedly connected to the shelf 20 and extends along the sliding direction of the shelf 20. The transmission gear set 102 is in transmission connection between the driving member 101 and the rack, so as to drive the shelf 20 to move out of the cavity 40 at least partially when the door body 30 is rotated to open the cavity 40, and drive the shelf 20 to move into the cavity 40 when the door body 30 is rotated to close the cavity 40.

As shown in fig. 1-3, when the door 30 is rotated and the door 30 is opened, the door 30 drives the driving member 101 to rotate, the driving member 101 drives the transmission gear set 102 engaged therewith to rotate, the transmission gear set 102 is engaged with the rack, so as to drive the rack to translate along the extending direction, the rack is connected to the rack 20, and the rack drives the rack 20 to translate. When the door body 30 is rotated and the door body 30 is opened, the driving member 101, the transmission gear set 102 and the rack all move in opposite directions, thereby realizing that the shelf 20 moves in opposite directions. The linkage mechanism 10 provided in the present embodiment can convert the rotation of the door 30 into the translational movement of the shelf 20, so as to prevent the user from bending down to push and pull the shelf 20 manually or drive the shelf 20 to slide through the driving device. In the embodiment, the driving member 101 and the rack are driven and connected by the transmission gear set 102, so that the transmission ratio of the transmission gear set 102 can be set as required, and the shelf 20 can move a suitable distance after the door 30 is switched between the open state and the closed state.

As shown in fig. 1 and 3, since the maximum angle of rotation of the door body 30 is often not more than 180 °, in order to reduce the occupied space of the driving member 101, it is preferable that the driving member 101 includes a circular arc structure along the circumference of which teeth to be engaged with the transmission gear set 102 are provided. Compared with the cylindrical driving member 101, the circular arc structure occupies a small space. The side of the circular arc structure is connected to the door body 30 to fix the driving member 101. Further, the side portion of the arc structure is attached to the door 30, and the door 30 has a function of supporting the driving member 101 when the door 30 is closed.

The door body 30 is usually opened by rotating around a horizontal axis or rotating around a vertical axis, and when the door body 30 rotates around the horizontal axis, the maximum angle of rotation of the door body 30 is usually about 90 °, and when the door body 30 rotates around the vertical axis, the maximum angle of rotation of the door body 30 can reach 180 °, so preferably, the central angle corresponding to the circular arc structure is not less than 90 °, and the central angle corresponding to the circular arc structure is not more than 180 °.

Preferably, in order to enable the shelf 20 to move a larger distance when the door 30 rotates at a smaller angle, the transmission gear set 102 includes a start driving wheel 1021 and a tail driven wheel 1022 which are in transmission connection, and the start driving wheel 1021 is engaged with the driving member 101, so that the driving member 101 transmits the rotation of the door 30 to the transmission gear set 102. The rack is engaged with the end driven wheel 1022, and the rack converts rotational motion of the end driven wheel 1022 into translational motion of the rack. The input line speed of the start drive wheel 1021 is less than the output line speed of the end driven wheel 1022 so that the shelf 20 can move a greater distance at the same time.

As shown in fig. 1, the transmission gear set 102 further includes an amplifying gear 1023, the start driving wheel 1021 is coaxially connected with the amplifying gear 1023, the amplifying gear 1023 is meshed with the end driven wheel 1022, the radius of the start driving wheel 1021 is smaller than that of the driving member 101, and the radius of the amplifying gear 1023 is larger than that of the start driving wheel 1021. It will be appreciated that the central axis of the magnifying gear 1023 is parallel to the central axis of the end driven wheel 1022. Linear velocities of the driving member 101, the start driving wheel 1021, the amplification gear 1023, and the end driven wheel 1022 are set to V1, V2, V3, and V4, angular velocities are ω 1, ω 2, ω 3, and ω 4, and radii are set to R1, R2, R3, and R4, respectively. Then, V1 ═ ω 1 × R1 ═ V2 ═ ω 2 × R2, and R1 > R2, so ω 1 < ω 2. Since the amplifying gear 1023 is engaged with the start driving wheel 1021, ω 1 < ω 2 ═ ω 3, and thus V3 ═ ω 3 × R3 > ω 2 × R2 ═ ω 1 × R1, and since the amplifying gear 1023 is engaged with the end driven wheel 1022, V4 ═ V3 > ω 1 × R1. Since the rack is engaged with the end driven wheel 1022 and the rack is connected to the rack 20, the moving speed of the rack 20 is equal to the linear speed of the end driven wheel 1022, that is, the transmission gear set 102 accelerates the moving speed of the rack 20, thereby increasing the displacement of the rack 20.

It can be understood that in the present embodiment, the end driven wheel 1022 plays a role of adjusting the position of the shelf 20, that is, the radius of the end driven wheel 1022 does not affect the moving speed of the shelf 20, but affects the position of the shelf 20, so that the purpose of adjusting the position of the shelf 20 can be achieved by adjusting the size of the end driven wheel 1022.

Example two

The linkage mechanism 10 provided in the second embodiment is substantially the same as the linkage mechanism 10 provided in the first embodiment, and the main difference between the two embodiments is that the specific structure of the transmission gear set 102 is different. As shown in fig. 4, the transmission gear set 102 only includes a start driving wheel 1021 and a tail driven wheel 1022, the start driving wheel 1021 and the tail driven wheel 1022 are coaxially connected, and the radius of the start driving wheel 1021 is smaller than the radius of the driving member 101 and the radius of the tail driven wheel 1022. The transmission gear set 102 of this structure may also function to increase the movement speed of the shelf 20.

EXAMPLE III

As shown in fig. 1 to 4, the present embodiment provides a dishwasher, which includes a cavity 40, a door 30, a rack 20, and the linkage mechanism 10 provided in the first embodiment, that is, the linkage mechanism 10 described above is used in a dishwasher. The shelf 20 is horizontally movably arranged in the cavity 40 of the dishwasher, the door body 30 can rotatably close or open the cavity 40, and the door body 30 and the shelf 20 are in transmission connection through the linkage mechanism 10, so that when the door body 30 is closed, the shelf 20 moves into the cavity 40; when the door 30 is opened, the shelf 20 is at least partially moved out of the cavity 40.

The dishwasher provided by the embodiment can pull out the shelf 20 from the cavity 40 while opening the door body 30 through the linkage mechanism 10, and push the shelf 20 into the cavity 40 at least partially when closing the door body 30, thereby providing convenience for users, and meanwhile, a driving device for driving the shelf 20 to slide is not needed to be arranged, so that the cost of the dishwasher is reduced.

In order to ensure the stability of the movement of the shelf 20, it is preferable that two sets of the link mechanisms 10 are spaced apart in a direction perpendicular to the sliding direction of the shelf 20.

The door 30 rotates around the lower end thereof, that is, the door 30 is turned down to open the cavity 40. The linkage mechanism 10 is connected to the lower end of the door body 30, i.e. the linkage mechanism 10 is located at the lower end of the cavity 40. Because the driving part for driving the spray arm to rotate and the driving part for driving the washing water to circulate in the dishwasher are both arranged at the lower end of the cavity 40, the space for accommodating the linkage mechanism 10 is easily reserved at the lower end of the cavity 40.

To further improve the stability of the movement of the shelf 20, it is preferable that the shelf 20 is connected to the wall of the cavity 40 by a guide member (not shown). Specifically, the guiding assembly may include a guide rail connected to the cavity wall of the cavity 40 and a sliding block connected to the shelf 20, and the sliding block is provided with a sliding groove for slidably connecting with the guide rail. In other alternative embodiments, the guiding assembly may include a guide rail connected to the shelf 20 and a sliding block connected to the wall of the cavity 40, wherein the sliding block is provided with a sliding groove for slidably connecting with the guide rail.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A dishwasher comprises a door body (30) and a shelf (20), wherein the shelf (20) is horizontally movably arranged in a cavity (40) of the dishwasher, and the door body (30) can rotatably close or open the cavity (40); characterized in that the dishwasher further comprises a linkage mechanism (10), the linkage mechanism (10) comprising:

a driving piece (101) arranged on the inner side of the door body (30);

the rack is arranged on the lower side of the shelf (20);

the transmission gear set (102) is in transmission connection between the driving part (101) and the rack, so that the shelf (20) is driven to move out of the cavity (40) at least partially when the door body (30) is rotated to open the cavity (40), and the shelf (20) is driven to move into the cavity (40) when the door body (30) is rotated to close the cavity (40).

2. The dishwasher of claim 1, characterized in that the drive member (101) comprises a circular arc structure, the side of which is connected to the door body (30), and teeth engaged with the transmission gear set (102) are provided along the circumference of the circular arc structure.

3. The dishwasher of claim 2, wherein the circular arc structure corresponds to a central angle of not less than 90 ° and not more than 180 °.

4. The dishwasher of claim 1, characterized in that the transmission gear set (102) comprises a start drive wheel (1021) and an end driven wheel (1022) in transmission connection, the start drive wheel (1021) being in engagement with the drive member (101), the end driven wheel (1022) being in engagement with the rack, an input line speed of the start drive wheel (1021) being less than an output line speed of the end driven wheel (1022).

5. The dishwasher of claim 4, characterized in that the start drive wheel (1021) is coaxially connected with the end driven wheel (1022), the start drive wheel (1021) having a smaller radius than the drive member (101) and the end driven wheel (1022).

6. The dishwasher of claim 4, characterized in that the transmission gear set (102) further comprises an amplifying gear (1023), the start drive wheel (1021) being coaxially connected with the amplifying gear (1023), the radius of the start drive wheel (1021) being smaller than the radius of the drive member (101), the amplifying gear (1023) being in mesh with the end driven wheel (1022), the radius of the amplifying gear (1023) being larger than the radius of the start drive wheel (1021).

7. The dishwasher of claim 1, characterized in that two sets of said linkages (10) are spaced apart in a direction perpendicular to the sliding of said rack (20).

8. The dishwasher of claim 1, wherein the door body (30) rotates about a lower end thereof, and the linkage mechanism (10) is connected to the lower end of the door body (30).

9. The dishwasher of claim 1, characterized in that the rack (20) is connected with the wall of the cavity (40) by a guide assembly.

10. The dishwasher of claim 9, characterized in that the guide assembly comprises a guide rail and a slider, one of the guide rail and the slider is connected to the rack (20) and the other is connected to the wall of the cavity (40), the slider is provided with a sliding groove, and the guide rail is slidably arranged in the sliding groove.