Automatic ejection mechanism and dishwasher

Abstract

The present application relates to the technical field of household appliances, and discloses an automatic ejection mechanism and a dishwasher. The automatic ejection mechanism is located between an inner container and an outer shell and is arranged at the rear of the outer shell in the outer shell, and comprises a driving assembly, a transmission member and an ejection assembly. The driving assembly is connected with the transmission member and drives the transmission member to reciprocate along the width direction or the height direction of the inner container. The ejection assembly is capable of moving along a direction perpendicular to the width direction and the height direction of the inner container to be in a retracted state and an open state of opening the door body. Since the rear of the dishwasher has machine control components and waterway components, there must be space between the control components and the waterway components to install the automatic ejection mechanism, without increasing the length of the machine along the direction of the ejection of the inner container or reducing the size of the inner container to install the automatic ejection mechanism. The change between the retracted state and the open state of the ejection assembly is different from the movement direction of the transmission member, so that the inner container is ejected by a large distance.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of household appliances, in particular to an automatic ejection mechanism and a dishwasher. BACKGROUND

[0002] With the globalization of dishwashers, people have higher and higher requirements for the performance of dishwashers, and users all require clean, dry and low-energy consumption tableware. In order to dry the cleaned tableware faster and reduce energy consumption, during the tableware drying stage, the drive mechanism in the dishwasher opens the door body, so that the inner container communicates with the external environment, the steam is discharged, the drying efficiency is improved, and the energy consumption is reduced.

[0003] In the prior art, a motor-driven worm and gear pair or a gear and rack pair is arranged on the top wall or side wall of the shell of the dishwasher and connected with the inner container, so as to realize the ejection of the inner container and then open the door body. However, the above-mentioned drive mechanism leads to a large space occupied by the whole machine in the height direction or the width direction, which cannot be matched with the cabinet. Or in order to match the dishwasher with the cabinet, the height or width of the inner container needs to be reduced, so that the capacity of the inner container is reduced. In the prior art, in order to reduce the size of the whole dishwasher or to ensure that the size of the inner container is as large as possible, the stroke of the drive mechanism is small, which cannot meet the requirement of steam discharge amount. SUMMARY

[0004] An object of the present application is to provide an automatic ejection mechanism to avoid increasing the size of the whole machine and avoiding reducing the size of the inner container, and to improve the stroke of the automatic ejection mechanism.

[0005] To achieve this object, the present application adopts the following technical solutions:

[0006] An automatic ejection mechanism is located between an inner container and a shell and arranged in the rear part of the shell, and the automatic ejection mechanism comprises:

[0007] a drive assembly;

[0008] a transmission member, the drive assembly is connected with the transmission member and drives the transmission member to reciprocate along the width direction or the height direction of the inner container;

[0009] an ejection assembly connected with the transmission member and capable of moving in a direction perpendicular to the width direction and the height direction of the inner container to be in a retracted state and an open door body expanded state.

[0010] As a preferred, the automatic ejection mechanism further comprises a drive box movably arranged in the shell, and the drive assembly is at least partially arranged in the drive box;

[0011] The ejection assembly comprises:

[0012] a first arm, a first end of the first arm being hinged to one end of the transmission member, a second end of the first arm being located between the transmission member and the inner container;

[0013] a second arm, a first end of the second arm being hinged to the driving box, a second end of the second arm being hinged to the second end of the first arm and located between the transmission member and the inner container;

[0014] a third arm, a first end of the third arm being hinged to one end of the transmission member, a second end of the third arm being hinged to the shell;

[0015] the transmission member reciprocates along the width direction or the height direction of the inner container, so that the second end of the first arm, the second end of the second arm and the second end of the third arm are close to or away from the transmission member.

[0016] As preferred, the ejection assembly further comprises a fourth arm, a first end of the fourth arm being hinged to the driving box, a second end of the fourth arm being hinged to the shell.

[0017] As preferred, the ejection assembly further comprises a mounting member, the mounting member being connected to the shell, the second end of the third arm being hinged to the mounting member.

[0018] As preferred, the ejection assembly further comprises a pushing member, the second end of the first arm and the second end of the second arm being hinged to the pushing member, the pushing member being capable of abutting against the back wall of the inner container or the door body.

[0019] As preferred, the pushing member comprises:

[0020] a pushing plate for abutting against the inner container;

[0021] a first lower connecting plate connected to one side of the pushing plate away from the inner container;

[0022] a first upper connecting plate connected to one side of the pushing plate away from the inner container and arranged in a vertically spaced manner with the first lower connecting plate, the first arm and the second arm being rotatably connected to the first upper connecting plate and the first lower connecting plate.

[0023] As preferred, the first arm, the second arm and the third arm each comprise an upper ear plate, an intermediate plate and a lower ear plate connected in sequence and forming a U-shaped structure, an opening of the U-shaped structure facing the transmission member, the intermediate plate being located at one end of the first end and provided with a clearance opening.

[0024] As preferred, the automatic ejection mechanism further comprises a stroke detection assembly arranged in the shell and used for detecting the displacement of the transmission member.

[0025] As preferred, the ejection assembly comprises:

[0026] a first arm, a first end of the first arm being rotatably connected to one end of the transmission member, a second end of the first arm being located between the transmission member and the inner container;

[0027] a guide slot, provided on a bottom wall and / or a top wall of the outer shell, the guide slot guiding the second end of the first arm, so that the first arm is located in the contracted state with the smallest angle with the transmission member, and in the expanded state with the largest angle with the transmission member.

[0028] Another object of the present application is to provide a dishwasher to avoid increasing the size of the whole machine and avoiding reducing the size of the inner container, and to improve the stroke of the automatic ejection mechanism.

[0029] To achieve the above object, the present application adopts the following technical solution:

[0030] A dishwasher comprising the automatic ejection mechanism described above.

[0031] The present application has the following advantages: The automatic ejection mechanism is located between the inner container and the outer shell, and is arranged in the rear part of the outer shell. The present application arranges the automatic ejection mechanism in the rear part of the dishwasher. Since the rear part of the dishwasher has machine control components and waterway components, there must be space between the control components and the waterway components to install the automatic ejection mechanism. That is, the automatic ejection mechanism is installed by using the existing remaining space in the dishwasher, without increasing the length of the whole machine in the front-rear direction of the inner container, or reducing the size of the inner container to install the automatic ejection mechanism. Since the transmission member reciprocates in the width direction or the height direction of the inner container, and the ejection assembly opens the door body in the front-rear direction of the inner container, that is, the change direction of the contracted state and the expanded state of the ejection assembly is different from the movement direction of the transmission member. Therefore, the relatively short space in the rear part of the whole machine can be reasonably utilized to eject the inner container or the door body by a large distance. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 is a sectional view of the dishwasher when the ejection assembly provided by the first embodiment of the present application is in the expanded state;

[0033] Figure 2 is a sectional view of the dishwasher when the ejection assembly provided by the first embodiment of the present application is in the contracted state;

[0034] Figure 3 is a perspective view of the automatic ejection mechanism provided by the first embodiment of the present application;

[0035] Figure 4 is a perspective view of the automatic ejection mechanism provided by the first embodiment of the present application after the pushing member is removed; Figure 3

[0036] Figure 5 is a perspective view of the mounting member provided by the first embodiment of the present application;​

[0037] Figure 6 is a perspective view of the pushing member provided by the first embodiment of the present application;

[0038] Figure 7 is a perspective view of the fourth arm provided by the first embodiment of the present application;

[0039] Figure 8 is a perspective view of the ejection assembly and the transmission member provided by the second embodiment of the present application;

[0040] Figure 9 is a structural schematic view of the ejection assembly provided by the second embodiment of the present application in a contracted state;

[0041] Figure 10 is a structural schematic view of the ejection assembly provided by the second embodiment of the present application in an expanded state.

[0042] in the drawings:

[0043] 10, inner container; 20, outer shell;

[0044] 1, driving assembly; 11, driving member; 12, gear set; 121, driving gear;

[0045] 2, transmission member;

[0046] 3, ejection assembly; 31, first arm; 32, second arm; 33, third arm; 34, fourth arm; 341, upper ear plate; 342, middle plate; 343, lower ear plate; 344, avoiding opening; 35, mounting member; 351, fixed plate; 352, second lower connecting plate; 353, second upper connecting plate; 36, pushing member; 361, pushing plate; 362, first lower connecting plate; 363, first upper connecting plate; 37, first fixed shaft; 38, second fixed shaft; 39, third fixed shaft; 301, guide groove; 302, first rotating shaft; 303, second rotating shaft; 304, third rotating shaft; 305, fourth rotating shaft;

[0047] 4, driving box; 41, second accommodating opening;

[0048] 5, first stroke switch; 6, second stroke switch. DETAILED DESCRIPTION

[0049] The technical solutions of the present application will be further described below in conjunction with the drawings and through specific embodiments. It can be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application. In addition, it should be noted that, for the convenience of description, only the parts related to the present application are shown in the drawings, but not all.

[0050] The present application defines some orientation words, and the orientation words "upper", "lower", "left", "right", "inner", "outer" are used for the convenience of understanding, and thus do not constitute a limitation on the scope of protection of the present application.

[0051] In the present application, unless otherwise explicitly specified and limited, "on" or "under" of the first feature to the second feature can include 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 through another feature between them. Moreover, "on", "above" and "over" of the first feature to the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. "Under", "below" and "under" of the first feature to the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0052] In the description of the present application, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0053] Embodiment one

[0054] The present embodiment provides an automatic ejection mechanism for a dishwasher, but is not limited thereto, and can also be used in other household appliances that need to open the door body to realize the communication between the inner container and the external environment. The present embodiment takes the automatic ejection mechanism for a dishwasher as an example for description.

[0055] As shown in Figures 1-4 The automatic ejection mechanism provided by the present embodiment is located between the inner container 10 and the outer shell 20, and is arranged at the rear part in the outer shell 20. The present application arranges the ejection mechanism at the rear part of the dishwasher. Since there are machine control components and waterway components at the rear part of the dishwasher, there must be space between the control components and the waterway components to install the automatic ejection mechanism. That is, the automatic ejection mechanism utilizes the existing residual space in the dishwasher, and does not need to increase the length of the whole machine in the direction of the ejection of the inner container 10, nor does it need to reduce the size of the inner container 10 to install the automatic ejection mechanism.

[0056] The automatic ejection mechanism comprises a driving assembly 1, a transmission member 2 and an ejection assembly 3. The driving assembly 1 is connected with the transmission member 2 and drives the transmission member 2 to move along the width direction of the inner container 10 (such as the direction of the arrow A in the figure). Figure 1The ejecting assembly 3 is connected with the transmission member 2 and can move in the direction perpendicular to the width direction and the height direction of the inner container 10, that is, the ejecting assembly 3 can move in the front-rear direction of the inner container 10 (as shown by the arrow H) and the top-rear direction of the inner container 10 (as shown by the arrow W). Figure 1 The ejecting assembly 3 is connected with the transmission member 2 and can move in the direction perpendicular to the width direction and the height direction of the inner container 10, that is, the ejecting assembly 3 can move in the front-rear direction of the inner container 10 (as shown by the arrow H) and the top-rear direction of the inner container 10 (as shown by the arrow W).

[0057] When the inner container 10 needs to be pushed out, the driving assembly 1 drives the transmission member 2 to move, and the transmission member 2 drives the ejecting assembly 3 to gradually reach the open state, so as to open the door body. The ejecting assembly 3 can abut against the rear wall of the inner container 10 or the door body, and the ejecting assembly 3 gradually reaches the open state, so as to push the inner container 10 from the rear to the front (as shown by the arrow H), and then the inner container 10 pushes open the door body, so as to open the door body, or the ejecting assembly 3 directly opens the door body. After the inner container 10 is pushed out, the driving assembly 1 drives the transmission member 2 to move in the opposite direction, and the transmission member 2 drives the ejecting assembly 3 to gradually reach the closed state. Figure 1

[0058] Since the ejecting assembly 3 is not connected with the inner container 10 and the door body, after the tableware is cleaned, the inner container 10 or the door body can be manually pulled out or opened. Moreover, after the inner container 10 is pushed out or the door body is opened, the driving assembly 1 can drive the ejecting assembly 3 to reach the closed state, so that the inner container 10 can be manually reset during the drying process of the tableware or after the drying process, even in the case of power failure.

[0059] Since the transmission member 2 reciprocates in the width direction (as shown by the arrow W) or the height direction of the inner container 10, and the ejecting assembly 3 pushes out the inner container 10 or opens the door body in the front-rear direction (as shown by the arrow H) of the inner container 10, that is, the change of the closed state and the open state of the ejecting assembly 3 is different from the moving direction of the transmission member 2, the space in the rear part of the whole machine can be reasonably utilized to push out the inner container 10 or the door body by a large distance. Figure 1 Figure 1 As shown in FIG. 1, the driving assembly 1 is connected with the transmission member 2, and the transmission member 2 is connected with the ejecting assembly 3.

[0060] As shown in FIG. 1, the driving assembly 1 is connected with the transmission member 2, and the transmission member 2 is connected with the ejecting assembly 3. Figure 3 Preferably, the driving assembly 1 comprises a driving member 11 and a gear set 12. The driving member 11 can be an electric machine or a motor, and the transmission member 2 can be a rack. The driving member 11 drives the gear set 12 to rotate, the driving gear 121 in the gear set 12 is engaged with the rack, and the output shaft of the driving member 11 rotates or reversely rotates, so as to drive the rack to reciprocate in the width direction of the inner container 10. In other embodiments, the rack can be vertically arranged by changing the direction of the gear set 12 (not shown in the figure), so that the rack reciprocates in the vertical direction, and the ejecting assembly 3 reaches the closed state or the open state. The gears in the gear set 12 can all be cylindrical gears, or can comprise conical gears and cylindrical gears, as long as the driving force of the driving member 11 can be transmitted to the rack.​​

[0061] In other embodiments, the drive assembly 1 may also include a drive member 11 and a nut. The drive member 11 is a motor, and its output shaft is connected to the nut to drive the nut to rotate. The transmission member 2 is a screw, which is screwed to the nut to realize the reciprocating motion of the screw along the width direction of the inner liner 10. Of course, in other embodiments, the drive assembly 1 may also be the cylinder body of a cylinder, and the transmission member 2 may be the piston rod of the cylinder. The cylinder body drives the piston rod to extend and retract to realize the reciprocating motion of the piston rod along the width or height direction of the inner liner 10.

[0062] Preferably, the automatic ejection mechanism further includes a drive box 4. In this embodiment, the drive assembly 1 is disposed inside the drive box 4, and the drive box 4 is movably disposed inside the housing 20. The transmission member 2 passes through the drive box 4 to connect the drive assembly 1 and the ejection assembly 3. Of course, in other embodiments, the drive assembly 1 may be partially located inside the drive box 4 (not shown in the figure) and partially located outside the drive box 4. The portion of the drive assembly 1 located outside the drive box 4 is connected to the transmission member 2, and the entire transmission member 2 is located outside the drive box 4 to connect the drive assembly 1 and the ejection assembly 3, thereby realizing the transmission connection between the drive assembly 1 and the ejection assembly 3.

[0063] like Figure 4 As shown, the ejector assembly 3 includes a first arm 31, a second arm 32, and a third arm 33. The first end of the first arm 31 is hinged to one end of the transmission member 2, and the second end of the first arm 31 is located between the transmission member 2 and the inner liner 10. The first end of the second arm 32 is hinged to the drive box 4, and the second end of the second arm 32 is hinged to the second end of the first arm 31, and is located between the transmission member 2 and the inner liner 10. The first end of the third arm 33 is hinged to one end of the transmission member 2, and the second end of the third arm 33 is hinged to the outer shell 20. The transmission member 2 reciprocates along the width direction of the inner liner 10, causing the second ends of the first arm 31, the second end of the second arm 32, and the second end of the third arm 33 to move towards the transmission member 2, gradually bringing the ejector assembly 3 into a retracted state, or away from the transmission member 2, so that the ejector assembly 3 abuts against the rear of the inner liner 10 and gradually extends outwards.

[0064] The first arm 31, the second arm 32, and the third arm 33 form a linkage mechanism. The transmission member 2 provides power to the linkage mechanism, causing the first ends of the first arm 31 and the third arm 33 to approach each other, thereby causing the second ends of the first arm 31, the second arm 32, and the third arm 33 to move away from the transmission member 2 along the front-back direction of the inner liner 10. Even if the ejector assembly 3 is in the open state of ejecting the inner liner 10, or if the first ends of the first arm 31 and the third arm 33 are moved away from each other, causing the second ends of the first arm 31, the second arm 32, and the third arm 33 to approach the transmission member 2 along the front-back direction of the inner liner 10, even if the ejector assembly 3 is in the retracted state.

[0065] In the embodiment, the ejection assembly 3 is located at the left side of the driving assembly 1. In the process of opening, the other end of the second arm 32 drives the driving box 4 and the driving assembly 1 in the driving box 4 to move forward and left simultaneously, the transmission member 2 moves with the driving box 4, the inner container 10 is gradually ejected, and space is provided for the movement of the driving box 4. In the process of closing, the other end of the second arm 32 drives the driving box 4 and the driving assembly 1 in the driving box 4 to move forward and right simultaneously, the transmission member 2 moves with the driving box 4, and the driving box 4 moves backward to provide space for the inner container 10 to enter the outer shell 20. Of course, in other embodiments, the ejection assembly 3 can also be located at the right side of the driving assembly 1, as long as the driving assembly 1 can drive the ejection assembly 3 to eject the inner container 10.

[0066] In order to improve the stability of the ejection assembly 3, the ejection assembly 3 further comprises a fourth arm 34, the first end of the fourth arm 34 is hinged to the driving box 4, and the second end of the fourth arm 34 is hinged to the outer shell 20. The first arm 31, the second arm 32, the third arm 33 and the fourth arm 34 form a parallelogram linkage.

[0067] The ejection assembly 3 further comprises a mounting member 35, the mounting member 35 is connected to the outer shell 20, and the second end of the third arm 33 is hinged to the mounting member 35. Preferably, the second end of the fourth arm 34 is also hinged to the mounting member 35. Preferably, the second end of the third arm 33 is connected with a third rotating shaft 304, and the third arm 33 is hinged to the mounting member 35 through the third rotating shaft 304. The second end of the fourth arm 34 is connected with a fourth rotating shaft 305, and the fourth arm 34 is hinged to the mounting member 35 through the fourth rotating shaft 305.

[0068] As shown in Figure 4 and Figure 5 Preferably, the mounting member 35 comprises a fixed plate 351, a second lower connecting plate 352 and a second upper connecting plate 353. The fixed plate 351 is connected to the rear wall of the outer shell 20, and the second lower connecting plate 352 and the second upper connecting plate 353 are connected to the side of the fixed plate 351 away from the rear wall of the outer shell 20 in a spaced manner. The upper end of the third rotating shaft 304 extends out of the third arm 33 and is rotatably connected to the second upper connecting plate 353, and the lower end of the third rotating shaft 304 extends out of the third arm 33 and is rotatably connected to the second lower connecting plate 352. The upper end of the fourth rotating shaft 305 extends out of the fourth arm 34 and is rotatably connected to the second upper connecting plate 353, and the lower end of the fourth rotating shaft 305 extends out of the fourth arm 34 and is rotatably connected to the second lower connecting plate 352. When the ejection assembly 3 is in the closed state, the third arm 33 and the fourth arm 34 can be located between the second upper connecting plate 353 and the second lower connecting plate 352, thereby saving the occupied space of the ejection assembly 3.

[0069] As shown in Figure 3 and Figure 6As shown, the ejection assembly 3 further comprises a pushing member 36, the second end of the first arm 31 and the second end of the second arm 32 are both hinged to the pushing member 36, in the embodiment, the pushing member 36 is capable of abutting against the rear wall of the inner container 10. Of course, in other embodiments, the pushing member 36 can also be capable of abutting against the door body (not shown in the figure). That is, the first arm 31 and the second arm 32 are rotationally connected through the pushing member 36, so that the abutting line of the first arm 31 and the second arm 32 against the inner container 10 changes to the surface of the pushing member 36, thereby improving the stability of the ejection assembly 3 when abutting against the inner container 10.

[0070] Preferably, the pushing member 36 comprises a pushing plate 361, a first lower connecting plate 362 and a first upper connecting plate 363. The pushing plate 361 is used to abut against the inner container 10; the first lower connecting plate 362 and the first upper connecting plate 363 are connected to the side of the pushing plate 361 away from the inner container 10 in an up-down interval, and the first arm 31 and the second arm 32 are rotationally connected to the first upper connecting plate 363 and the first lower connecting plate 362. The first lower connecting plate 362 and the first upper connecting plate 363 are arranged in an up-down interval, so that when the ejection assembly 3 is in the retracted state, the first arm 31 and the second arm 32 can both be located between the first upper connecting plate 363 and the first lower connecting plate 362, thereby saving the occupied space of the ejection assembly 3. In the embodiment, the pushing member 36 and the mounting member 35 have the same structure and are symmetrically arranged with respect to the transmission member 2.

[0071] Of course, in its embodiments, the pushing member 36 can also be a rod-shaped member (not shown in the figure), which extends from the rear of the dishwasher to the front of the dishwasher to abut against the door body.

[0072] Preferably, the second end of the first arm 31 is connected with a first rotating shaft 302, the upper end of the first rotating shaft 302 extends out of the first arm 31 to be rotationally connected to the first upper connecting plate 363, and the lower end of the first rotating shaft 302 extends out of the first arm 31 to be rotationally connected to the first lower connecting plate 362. The second end of the second arm 32 is connected with a second rotating shaft 303, the upper end of the second rotating shaft 303 extends out of the second arm 32 to be rotationally connected to the first upper connecting plate 363, and the lower end of the second rotating shaft 303 extends out of the second arm 32 to be rotationally connected to the first lower connecting plate 362.

[0073] As Figure 7As shown, preferably, the first arm 31, the second arm 32 and the third arm 33 each comprise an upper ear plate 341, a middle plate 342 and a lower ear plate 343 connected in sequence and forming a U-shaped structure, the opening of the U-shaped structure faces the transmission member 2, and the middle plate 342 is provided with a clearance 344 at one end of the first end. In this embodiment, the fourth arm 34 has the same structure as the first arm 31. The U-shaped structure and the clearance 344 can facilitate the hinging of the first arm 31 and the fourth arm 34 on the transmission member 2, and the hinging of the third arm 33 and the second arm 32 on the drive box 4, and when the ejection assembly 3 is in the retracted state, the transmission member 2 is located between the upper ear plate 341 and the lower ear plate 343 of the U-shaped structure, thereby saving the occupied space of the ejection assembly 3.

[0074] As shown in the drawings, Figure 4 Preferably, the transmission member 2 is connected with a first fixed shaft 37 at one end outside the drive box 4, and the first end of the first arm 31 and the first end of the third arm 33 are both rotationally connected with the first fixed shaft 37. The drive box 4 is provided with a first accommodating opening and a second accommodating opening 41 for the drive member 11 to pass through, and the first accommodating opening and the second accommodating opening 41 are respectively provided on the opposite two side walls of the drive box 4, wherein the first accommodating opening is provided on the side wall of the drive box 4 close to the ejection assembly 3, and the upper portion of the first accommodating opening is connected with a second fixed shaft 38, and the lower portion is connected with a third fixed shaft 39. The upper ear plate 341 of the second arm 32 and the upper ear plate 341 of the fourth arm 34 are rotationally connected to the second fixed shaft 38, and the lower ear plate 343 of the second arm 32 and the lower ear plate 343 of the fourth arm 34 are rotationally connected to the third fixed shaft 39.

[0075] In order to detect whether the automatic ejection mechanism fails, or to determine whether the ejection assembly 3 is fully opened or retracted, the automatic ejection mechanism further comprises a stroke detection assembly, which is arranged in the housing 20 and is used to detect the displacement of the transmission member 2.

[0076] Specifically, the stroke detection assembly can be a first stroke switch 5 and a second stroke switch 6 arranged at intervals along the width direction of the inner container 10, wherein the second stroke switch 6 is located on the left side of the first stroke switch 5, and the part of the transmission member 2 located in the drive box 4 reciprocates between the first stroke switch 5 and the second stroke switch 6. The automatic ejection mechanism can further comprise a controller, and the stroke detection assembly and the drive assembly 1 are electrically connected with the controller. When the first stroke switch 5 is triggered, it indicates that the ejection assembly 3 is in the open state, and the inner container 10 is ejected in place. The controller receives the signal that the first stroke switch 5 is triggered, controls the drive assembly 1 to drive the transmission member 2 to move in the opposite direction, until the second stroke switch 6 is triggered, the ejection assembly 3 is in the retracted state, and the second stroke switch 6 transmits the signal that it is triggered to the controller, and the controller controls the drive assembly 1 to stop working until the controller receives the signal that the inner container 10 needs to be ejected again.

[0077] The controller can be a centralized or distributed controller. For example, the controller can be a single microcontroller or a combination of multiple distributed microcontrollers. The microcontroller can run a control program to control the first limit switch 5, the second limit switch 6 and the drive component 1 to achieve their functions.

[0078] Of course, in other embodiments, the stroke detection component may also be a displacement sensor disposed within the drive box 4.

[0079] This embodiment also provides a dishwasher, which includes the aforementioned automatic ejection mechanism. Preferably, the dishwasher's outer casing 20 is provided with a guide rail, which is slidably connected to the inner tub 10 to guide the movement of the inner tub 10. The guide rail can be provided on the side wall, top wall, or bottom wall of the outer casing 20, as long as it can guide the inner tub 10. After installing the automatic ejection mechanism, the dishwasher provided in this embodiment does not increase in overall size or occupy more space, and the size of the inner tub 10 does not need to be reduced, thus ensuring the capacity of the inner tub 10.

[0080] Example 2

[0081] like Figures 8-10 As shown, the automatic ejection mechanism of this second embodiment is basically the same as that of the first embodiment, except that the specific structure of the ejection component 3 is different. In this embodiment, the ejection component 3 includes a first arm 31 and a guide groove 301. The first end of the first arm 31 is rotatably connected to one end of the transmission member 2, and the second end of the first arm 31 is located between the transmission member 2 and the inner liner 10. The guide groove 301 is disposed on the bottom wall of the outer shell 20, and the guide groove 301 guides the second end of the first arm 31, so that the first arm 31 is in a contracted state with the smallest angle with the transmission member 2 and an open state with the largest angle with the transmission member 2. Preferably, the length direction of the guide groove 301 is consistent with the front-back direction of the inner liner 10.

[0082] Preferably, the transmission component 2 is connected to a first fixed shaft 37 at one end outside the drive box 4, and the first end of the first arm 31 is rotatably connected to the first fixed shaft 37. The second end of the first arm 31 is connected to a first rotating shaft 302, and the lower end of the first fixed shaft 37 extends out of the first arm 31 to be located in the guide groove 301, thus guiding the first arm 31.

[0083] Depending on the arrangement of the control components and water system components inside the dishwasher, the guide groove 301 can also be provided on the top wall of the outer casing 20, or the guide groove 301 can be provided on both the top and bottom walls of the outer casing 20.

[0084] In the embodiment, the second arm 32, the third arm 33, the fourth arm 34 and the mounting piece 35 are not arranged, and the driving box 4 and the driving assembly 1 in the driving box 4 do not move during the conversion between the contracted state and the expanded state of the ejection assembly 3, so the driving box 4 can be connected to the housing 20, and the stability of the automatic ejection mechanism is ensured.

[0085] In order to detect whether the automatic ejection mechanism is faulty or to determine whether the ejection assembly 3 is expanded or contracted to the position, the automatic ejection mechanism further comprises a stroke detection assembly arranged in the housing 20 and used for detecting the displacement of the transmission member 2.

[0086] Specifically, the stroke detection assembly can be a first stroke switch 5 and a second stroke switch 6 arranged at intervals along the width direction of the inner container 10, the second stroke switch 6 is located at the left side of the first stroke switch 5, and the part of the transmission member 2 located in the driving box 4 reciprocates between the first stroke switch 5 and the second stroke switch 6. The automatic ejection mechanism can further comprise a controller, the stroke detection assembly and the driving assembly 1 are electrically connected to the controller, when the first stroke switch 5 is triggered, it indicates that the ejection assembly 3 is in the expanded state, and the inner container 10 is ejected to the position, the controller receives the signal that the first stroke switch 5 is triggered, controls the driving assembly 1 to drive the transmission member 2 to move in the opposite direction, until the second stroke switch 6 is triggered, the ejection assembly 3 is in the contracted state, the second stroke switch 6 transmits the signal that the second stroke switch 6 is triggered to the controller, and the controller controls the driving assembly 1 to stop working until the controller receives the signal that the inner container 10 needs to be ejected again.

[0087] The controller can be a centralized or distributed controller, for example, the controller can be a single microcontroller, or can be composed of multiple distributed microcontrollers, and the microcontroller can run a control program to control the first stroke switch 5, the second stroke switch 6 and the driving assembly 1 to realize their functions.

[0088] Of course, in other embodiments, the stroke detection assembly can also be a displacement sensor arranged in the driving box 4.

[0089] The embodiment further provides a dishwasher comprising the automatic ejection mechanism, and preferably, the housing 20 of the dishwasher is provided with a guide rail, the guide rail is in sliding connection with the inner container 10, and the guide rail provides guidance for the movement of the inner container 10. The guide rail can be arranged on the side wall, the top wall or the bottom wall of the housing 20, as long as it can guide the inner container 10. The dishwasher provided by the embodiment does not increase the size of the whole machine after the automatic ejection mechanism is installed, the dishwasher does not increase the occupied space, and the size of the inner container 10 does not need to be reduced, so that the capacity of the inner container 10 is ensured.

[0090] Obviously, the above embodiments of the present application are merely example for clearly explaining the present application, and are not intended to limit the embodiments of the present application. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. Here, it is not necessary and also impossible to enumerate all the embodiments. Any modification, equivalent replacement and improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. An automatic ejection mechanism characterized by, An automatic ejection mechanism is arranged between the inner container (10) and the outer shell (20) and in the rear part of the outer shell (20), and comprises: a driving assembly (1); a transmission member (2) connected with the driving assembly (1) and driven by the driving assembly (1) to reciprocate along the width direction or the height direction of the inner container (10); an ejection assembly (3) connected with the transmission member (2) and capable of moving along a direction perpendicular to the width direction and the height direction of the inner container (10) to be in a retracted state and an open state of the door body; the automatic ejection mechanism further comprises a driving box (4) movably arranged in the outer shell (20), and the driving assembly (1) is at least partially arranged in the driving box (4); the transmission member (2) passes through the driving box (4) to connect the driving assembly (1) and the ejection assembly (3); the ejection assembly (3) comprises: a first arm (31) having a first end hinged to one end of the transmission member (2) and a second end located between the transmission member (2) and the inner container (10); a second arm (32) having a first end hinged to the driving box (4) and a second end hinged to the second end of the first arm (31) and located between the transmission member (2) and the inner container (10); a third arm (33) having a first end hinged to one end of the transmission member (2) and a second end hinged to the outer shell (20); the transmission member (2) reciprocates along the width direction or the height direction of the inner container (10) to make the second end of the first arm (31), the second end of the second arm (32) and the second end of the third arm (33) approach or away from the transmission member (2).

2. The automatic ejection mechanism according to claim 1, characterized in that The ejection assembly (3) further comprises a fourth arm (34) having a first end hinged to the driving box (4) and a second end hinged to the outer shell (20).

3. The automatic ejection mechanism according to claim 1, wherein The ejection assembly (3) further comprises a mounting member (35) connected to the outer shell (20), and the second end of the third arm (33) is hinged to the mounting member (35).

4. The automatic ejection mechanism of claim 1, wherein The ejection assembly (3) further comprises a pushing member (36), and the second end of the first arm (31) and the second end of the second arm (32) are both hinged to the pushing member (36), and the pushing member (36) is capable of abutting against the rear wall of the inner container (10) or the door body.

5. The automatic ejection mechanism according to claim 4, wherein The pushing member (36) comprises: a push plate (361) for abutting against the inner container (10); a first lower connecting plate (362) connected to the side of the push plate (361) away from the inner container (10); A first upper connecting plate (363) is connected to the side of the push plate (361) away from the inner container (10) and is arranged vertically spaced apart from the first lower connecting plate (362), and the first arm (31) and the second arm (32) are rotationally connected to the first upper connecting plate (363) and the first lower connecting plate (362).

6. The automatic ejection mechanism of claim 1, wherein The first arm (31), the second arm (32) and the third arm (33) each comprise an upper ear plate (341), an intermediate plate (342) and a lower ear plate (343) connected in sequence and forming a U-shaped structure, the opening of the U-shaped structure faces the transmission member (2), and the intermediate plate (342) is provided with a relief opening (344) at one end of the first end.

7. The automatic ejection mechanism of claim 1, wherein The automatic ejection mechanism further comprises a stroke detection assembly arranged in the shell (20) and used for detecting the displacement of the transmission member (2).

8. A dishwasher, characterized in that The automatic ejection mechanism comprises any one of claims 1-7.

Images