CN110680260B

CN110680260B - Dish washing machine

Info

Publication number: CN110680260B
Application number: CN201810724088.XA
Authority: CN
Inventors: 王金铜; 程宝珍; 杨林
Original assignee: Qingdao Haier Dishwasher Co Ltd
Current assignee: Qingdao Haier Dishwasher Co Ltd
Priority date: 2018-07-04
Filing date: 2018-07-04
Publication date: 2022-05-27
Anticipated expiration: 2038-07-04
Also published as: CN110680260A

Abstract

The invention discloses a dish washing machine, which comprises a shell, wherein the shell is provided with an access hole and an access door matched with the access hole; set up the splice bar of connecting each other between access door and the access hole, the splice bar is broken when access door is opened/closed for the first time. The invention sets the access door and the access hole which are convenient for maintenance in the dish-washing machine, so that the maintenance can be realized without disassembling the machine when the dish-washing machine breaks down.

Description

Dish washing machine

Technical Field

The invention belongs to the field of dish-washing machine equipment, and particularly relates to a dish-washing machine.

Background

The dish washer is used for automatically cleaning tableware such as dish, chopsticks, dish, knife and fork, and can be divided into two types of box type and conveying type according to the structure. It reduces the labor intensity for the cooking personnel in dining room, hotel and dining room of office, improves the working efficiency and promotes the cleanness and sanitation. At present, various small dishwashers are on the market, and are gradually entering ordinary households.

The drain pump of the existing dish washing machine is arranged below the base, the drain pump is very easy to block in the using process, the dish washing machine is required to be detached during maintenance, the bottom surface of the dish washing machine can be turned over to be completed, the inconvenience of maintenance is caused, and particularly, some dish washing machines which are installed in a cupboard like a wall-embedded mode are more troublesome when relevant maintenance is carried out. Although the problem of servicing can be solved if corresponding observation windows or service hatches are provided for the dishwasher, new problems are posed for the transport and handling of the dishwasher. This is because, for a hollow base, increasing the access opening would destroy the strength of the base as a whole, resulting in a reduction of both its pressure-bearing and torsion-resistance capabilities, so that the dishwasher is very likely to cause deformation of the housing during handling or transportation. At the same time, special fixing and protecting facilities need to be arranged for the access door in the process of carrying or transporting, so as to avoid damage caused by the movement of the access door.

The present invention has been made in view of this situation.

Disclosure of Invention

The invention aims to solve the technical problem of overcoming the defects of the prior art and provides a dish washing machine, wherein an access door and an access hole which are convenient to overhaul are arranged in the dish washing machine, so that the dish washing machine can be maintained without disassembling the machine when in failure.

In order to realize the purpose, the invention adopts the following technical scheme:

a dish washing machine comprises a shell, wherein an access hole and an access door matched with the access hole are formed in the shell; set up the splice bar of being connected each other between access door and the access hole, the splice bar is broken off when access door is opened/closed for the first time.

Furthermore, the access door is provided with a connecting edge which is rotatably connected with the shell, and the connecting rib is arranged on the edge of the access door which is connected with and/or opposite to the connecting edge.

Furthermore, a gap is formed between the access door and the shell, one end of the connecting rib is connected with the access door, and the other end of the connecting rib penetrates through the gap and is connected with the access opening;

preferably, the connection part of the connecting rib and the access door is positioned at the outer edge of the access door and is integrally formed with the access door.

Furthermore, a gap between the access door and the shell is positioned between the edge of the access door and the inner wall of the access opening, when the access door is closed, the whole access door is positioned in the access opening, and the access door is flush with the outer surface of the shell; the connecting rib is connected with the access hole on the inner wall of the access hole.

Furthermore, the number of the connecting ribs is multiple, and the spacing width between adjacent connecting ribs is larger than the width of the connecting ribs;

preferably, the thickness of the connecting rib is not greater than the thickness of the access door.

Furthermore, the dishwasher also comprises a limiting device which is rotatably arranged between the access door and the access opening; stop device has spacing joint portion, makes spacing joint portion respectively with the marginal spacing joint of access door, access hole through rotating stop device, realizes the disconnection access door behind the splice bar is closed spacing.

Furthermore, spacing joint portion has the draw-in groove of extending along its side circumference, and the access door is closed the back, rotates stop device makes the edge and the access door of access hole insert respectively the draw-in groove realizes dismantling of the edge and the access door of access hole and is connected to realize the spacing of access door.

Furthermore, when the limiting device limits the access door after the access door is closed, the part of the access door inserted into the clamping groove is a matching part, the edge of the matching part on the outer edge of the access door is a matching edge, and the connecting rib is arranged on the edge, connected with the matching edge and/or opposite to the matching edge, of the access door.

Furthermore, a base is arranged at the bottom of the dishwasher, a hollow cavity is arranged in the base shell, and the access hole and the access door are arranged on the side surface of the base;

preferably, the access opening and access door are provided on a side of the chassis that is located on the front of the dishwasher.

Furthermore, a drainage pump is arranged in the cavity, and the access hole is formed in the position, corresponding to the drainage pump, of the side face of the shell of the base.

After adopting the technical scheme, compared with the prior art, the invention has the following beneficial effects:

the invention arranges the access hole and the access door matched with the access hole on the dishwasher, so that when an maintainer or a user needs to overhaul the components in the shell of the dishwasher, the maintenance can be realized without carrying the dishwasher or dismantling the dishwasher. Meanwhile, connecting ribs for connecting the access door and the access hole are arranged between the access door and the access hole, so that the overall strength of the shell is ensured, and the dishwasher is not easy to deform in the carrying or transporting process. The connecting rib is broken off during maintenance, the limiting device of the access door is opened, the access door can be opened, maintenance work can be conveniently maintained, and the operation process is simple and efficient.

The connecting ribs are arranged on the edges of the access door, which are connected with and/or opposite to the connecting edges, so that the access door can be effectively fixed, and the access door is prevented from rotating around the connecting edges. The dishwasher can provide necessary fixation for the access door without arranging special fixing or protecting facilities for the access door in the carrying or transporting process, avoids the damage caused by the movement of the access door, and reduces the using amount of protective materials in the transporting process of the access door. The connecting rib and the access door are integrally formed, and the processing process is simple.

The access door is integrally positioned in the access opening when being closed, the access door is flush with the outer surface of the shell, and the connecting rib is ensured not to protrude out of the outer surface of the shell, so that the whole packaging of the dish washing machine is facilitated, and the damage caused by the protrusion of the access door or the connecting rib in the carrying process is reduced.

The connecting ribs are moderate in width and thickness, so that the strength of the shell and the connection requirement of the access door are guaranteed, a user can break the access door conveniently and easily before opening the access door, and the limit fixation of the connecting ribs on the access door is released.

The special rotatable limiting device is arranged for the access door, so that the access door can be conveniently limited and fixed when being closed after being normally used. The space that this limit structure occupy is little to can effectively spacing to the access door, stop device's handle can also be regarded as to its draw-in groove, convenience of customers opens or closes this access door. The connecting rib is arranged on the access door and is connected with the matching edge and/or is matched with the connecting edge on the opposite edge, so that the phenomenon that the limiting device deforms or the clamping groove of the limiting device deforms and misplaces when the connecting rib is broken off after the connecting rib is fixed with the edge where the limiting device is located is avoided.

The access door of the invention is arranged on the side surface of the front surface of the base of the dish washing machine, and is particularly suitable for the access of the drain pump of the dish washing machine with the drain pump arranged in the base.

In order to meet the limiting requirement after the access door is closed, the limiting device is arranged between the access opening and the access door, and the access door is limited by clamping the edge of the access opening and the access door through the clamping groove on the limiting device. The limiting device does not need to install any other redundant parts on the access door or the access hole, has simple structure and very high reliability. According to the invention, the base plate and the cover plate are arranged to be concentric but have different areas, and the clamping groove formed between the base plate and the cover plate forms the limiting clamping part of the limiting device, so that the different areas of the base plate and the cover plate are ingeniously utilized, different connection relations between the clamping groove and the access door and the access opening when the limiting device rotates to different angles are realized, and the switching between the limiting of the access door and the limiting releasing is realized.

The edge of the clamping groove is arc-shaped, so that the requirement of smooth rotation of the limiting device can be met, and the limiting device can freely rotate under the condition of no action until the limiting device automatically rotates to a static balance state. And because the base plate is circular shape panel, the shroud plate for tile on the base plate with circular panel concentric set up be greater than semicircular arcuate panel, stop device's focus is outside the axis when stop device rotates, consequently when stop device can be under the inoperative condition rotation to static equilibrium state, just rotate the draw-in groove to the limit position with access door and access hole edge difference joint, make the access door can obtain in good time close spacingly.

According to the invention, the limit of the access door can be conveniently released only by rotating the limit device to enable the access door to exit from the clamping groove, and a user can conveniently open the access door. The edge of the access hole and/or the access door are/is provided with a circular arc-shaped notch for placing the access device, so that the limiting device can freely rotate in the notch. Meanwhile, the area of the notch is smaller than that of the substrate, so that the substrate can be ensured to shield the notch no matter the limiting device rotates to any angle under the condition that the access door is closed, the protection requirement of electrical equipment in the dish-washing machine is met, and external water or foreign matters and the like are prevented from falling into the containing cavity of the base of the dish-washing machine.

According to the invention, the base plate is positioned close to the shell, and the shroud plate is positioned far away from the shell, so that the access door can be prevented from being opened towards the inner direction of the dish-washing machine under the action of the limiting device when the limiting device is positioned at the limit releasing position, and the damage to internal equipment caused by the fact that the access door is opened inwards is avoided.

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention to the right. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:

FIG. 1 is a schematic view of the structure of a base of a dishwasher according to the present invention;

FIG. 2 is an enlarged partial schematic view of an access door of the dishwasher base of FIG. 1;

FIG. 3 is a schematic view of a dishwasher in which a base is mounted with a stopper according to the present invention;

fig. 4 is a schematic structural view of a limiting device of a dishwasher according to the present invention.

In the figure: 1. an access door; 11. a connecting edge; 12. the door handle is overhauled; 13. a mating edge; 14. a fitting portion; 2. connecting ribs; 3. an access hole; 31. the edge of the access opening; 32. an access hole is provided with a circular arc notch; 4. a limiting device; 41. a limiting clamping part; 42. a card slot; 43. covering a plate; 44. a substrate; 45. a handle; 5. a cavity; 6. a housing.

It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but rather to illustrate it for those skilled in the art by reference to specific embodiments.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in figures 1 to 4, the invention discloses a dish-washing machine, which comprises a shell 6, wherein the shell 6 is provided with an access hole 3 and an access door 1 matched with the access hole; set up between access door 1 and the access opening 3 and be connected each other's splice bar 2, splice bar 2 is broken when access door 1 is opened/is closed for the first time. The invention sets the access door and the access hole which are convenient for maintenance in the dish-washing machine, so that the maintenance can be realized without disassembling the machine when the dish-washing machine breaks down.

Example 1

As shown in fig. 1 to 4, an object of the present invention is to provide a dishwasher. The bottom of the dish washing machine in the embodiment is provided with the base, a hollow cavity 5 is arranged in a shell 6 of the base, the drainage pump is arranged in the cavity 5, and the drainage pump is easy to block in the using process. In the past, the dish washer must be detached for maintenance and turned upside down, which is more troublesome if the dish washer is wall-mounted in a cabinet. As shown in the figure, in the embodiment, an access opening 3 and an access door 1 matched with the access opening are arranged on a shell 6 of the base, and the access opening 3 and the access door 1 are arranged on the side surface of the base at the position corresponding to the drainage pump. Preferably, as shown in fig. 1, in order to further facilitate the user's inspection of the drain pump in this embodiment, an access opening 3 and an access door 1 of the dishwasher are provided on a side of the base located on the front of the dishwasher. As shown in figure 2, the invention arranges a connecting rib 2 for connecting the access door 1 and the access opening 3, and the connecting rib 2 is arranged when the dishwasher is delivered from the factory, so as to ensure the fixation of the access door 1 relative to the access opening 3 in the transportation process of the dishwasher. When the dish washer needs to be overhauled for the first time, the connecting ribs are broken off, and the limiting fixation of the connecting ribs on the access door is removed.

The connecting rib arranged on the access door of the dishwasher can be connected when the access door is closed or when the access door is opened according to the practical application condition. However, in any connection rib setting mode, as long as the initial motion state of the access door needs to be changed, the connection rib needs to be disconnected first, and the limit of the access door by the connection rib is released, so that further operation can be performed.

As shown in fig. 2 and 3, the access door 1 has a connecting edge 11 rotatably connected to the housing 6, and the connecting rib 2 is provided on an edge of the access door 1 that is adjacent to and/or opposite to the connecting edge 11. The access door structure of the invention may be arranged to be integrated with the base and to be connected to the housing 6 at the connecting edge 11. The part on this connection limit is fixed by the parcel of the parcel limit in the casing outside by the welding, and the part in the parcel limit is connected the limit and is bordured down and have the space, can be in parcel limit internal rotation, consequently the access door in this embodiment need not additionally increase the rotation axis to manufacturing cost and the processing degree of difficulty have been reduced.

As shown in the figure, in order to make the access door switch more free, a gap is formed between the access door 1 and the housing 6, one end of the connecting rib 2 is connected with the access door 1, and the other end penetrates through the gap to be connected with the access opening 3. In this embodiment, the connection part of the connecting rib 2 and the access door 1 is located at the outer edge of the access door and is integrally formed with the access door. The gap between the access door 1 and the shell 6 is positioned between the edge of the access door and the inner wall of the access opening, when the access door is closed, the whole access door is positioned in the access opening, and the access door is flush with the outer surface of the shell; the connecting rib is connected with the access hole on the inner wall of the access hole. The access door and the outer surface of the shell are parallel and level, and meanwhile, the connecting ribs also ensure that the connecting ribs do not protrude out of the outer surface of the shell, so that the whole packaging of the dish washing machine is facilitated, and the damage caused by the protruding access door or the protruding connecting ribs in the carrying process is reduced.

The number of the connecting ribs in the embodiment is multiple, and the spacing width between adjacent connecting ribs is larger than the width of the connecting ribs; preferably, the thickness of the connecting rib is not greater than the thickness of the access door. Both guaranteed the connection needs of casing intensity and access door, can also make the user break off with the fingers and thumb conveniently easily before opening the access door simultaneously.

As shown in fig. 3 and 4, the dishwasher further includes a stopper 4 rotatably provided between the access door 1 and the access opening 3. Stop device 4 has spacing joint portion 41, makes spacing joint portion 41 respectively with the marginal 31 spacing joint of access door 1, access hole through rotating stop device 4, realizes the disconnection the access door behind the splice bar is closed spacing.

As shown in fig. 3 and 4, the limit locking portion 41 has a locking groove 42 extending circumferentially along a side surface thereof. After access door 1 closed, rotate stop device 4 makes the edge 31 and the access door 1 of access hole insert respectively draw-in groove 42 realizes dismantling of the edge 31 and the access door 1 of access hole and is connected to realize access door 1's spacing.

Stop device 4 is when access door 1 is spacing after access door 1 closes, access door 1 inserts the part of draw-in groove 42 is cooperation portion, on access door 1's the outer fringe the limit at cooperation portion place is cooperation limit 13, splice bar 2 sets up on access door 1 with cooperation limit 13 meets and/or relative edge. In this embodiment, since the connecting edge and the matching edge are just opposite to each other, the connecting rib in this embodiment is disposed on the upper and lower side edges connected to the matching edge and the connecting edge.

As shown in fig. 1 to 3, the access door 1 is provided with a circular arc-shaped access door handle 12, which is convenient for users to control, and because the end part is circular arc-shaped, the user is prevented from being scratched by sharp corners and injured, and meanwhile, the handle occupies a small space and can be produced together with the base in a mold stripping manner.

Example 2

As shown in fig. 1 to 4, the present embodiment discloses a dishwasher. In order to meet the limit requirement after the access door is closed, the limit device 4 is rotatably arranged between the access door 1 and the access opening 3 in the embodiment. A gap is arranged between the access door 1 and the access opening 3, the limiting device 4 is detachably assembled in the gap, and the limiting device 4 can rotate in the gap. As shown in fig. 2, the limiting device 4 has a limiting clamping portion 41, and the limiting clamping portion 41 is clamped with the edge 31 of the access door 1 and the access opening respectively in a limiting manner by rotating the limiting device 4 to realize the limiting after the access door is closed.

As shown in fig. 3 and 4, the limit click portion 41 has a click groove 42 extending circumferentially along a side surface thereof. The size of the notch just meets the requirement that when the access door is closed, the edge of the notch can be clamped into the clamping groove 42 of the limiting device, so that the clamping groove 42 plays a limiting role. Particularly, after access door 1 closed, rotate stop device 4 makes the edge 31 and the access door 1 of access hole insert respectively draw-in groove 42 realizes dismantling of the edge 31 and the access door 1 of access hole and is connected to realize access door 1's spacing.

Further, as shown in fig. 4, the limiting clamping portion 41 includes a base plate 44 and a cover plate 43 that are parallel to each other, and a gap is left between the base plate 44 and the cover plate 43, and the gap forms the clamping groove 42. The edge of the clamping groove can be set into various shapes, for example, in some embodiments, the edge of the clamping groove can be set into a polygon, so that the limiting device has an operation position which is not more than the number of the sides of the polygon, and the limiting device can change the position of the limiting clamping part under the action of force. The setting up advantage of polygon edge draw-in groove like this lies in that stop device position is clear accurate, but its drawback is also very obvious, if do not have under the effect of external force after just closing as the access door, stop device can't rotate by oneself and make the spacing stop position of access door, can only exert the effort by the user initiative and just can accomplish spacing operation, consequently unsatisfied the access door of dish washer in time close spacing requirement.

In this implementation, the outer edge of the limiting device is set to be circular arc. As shown in fig. 4, the base plate 44 and the shroud plate 43 both have convex circular arc outlines, the edges of the base plate side and the shroud plate side of the card slot 42 are both convex circular arc edges, and the base plate side circular arc edge and the shroud plate side circular arc edge of the card slot 42 are concentrically arranged. Therefore, when the limiting device rotates, the limiting device is stable and does not shake, overlarge impact on the access door cannot be generated, and the motion synchronization ensures that the limiting action is accurate.

In other embodiments, the substrate side arc edge and the shroud plate side arc edge of the slot 42 may not be concentrically arranged, and the requirement of stability and no shaking can be satisfied when the limiting device rotates by adjusting the gravity centers of the substrate and the shroud plate.

As shown in fig. 4, the area of the base plate 44 and the area of the cover plate 43 are different; preferably, the area of the cover plate 43 is smaller than the area of the base plate 44. The base plate 44 is designed as a circular plate, and the cover plate 43 is an arched plate laid on the base plate 44 and arranged concentrically with the circular plate. The clamping groove 42 is positioned between the arc edge of the base plate 44 and the arc edge of the arched plate of the shroud plate 43; the limiting device 4 can rotate around an axis which is perpendicular to the base plate 44 and passes through the circle center of the base plate 44. The radian of the arc edge of the cambered plate is greater than that of a semicircle. The area of the shroud plate is different from that of the base plate, and as shown in fig. 4, the shroud plate is flatly laid on one side of the base plate, so that the clamping grooves are only arranged on the partial outer edges of the limiting devices, which are close to the outer edges of the shroud plate and the base plate. When the limiting device is rotated to the position where the covering plate does not cover the base plate, particularly when the limiting device is rotated to the position where the chord of the arched plate of the covering plate is parallel to the edge of the access door, the edge of the access door or the edge of the access opening is automatically rotated out of the clamping groove, so that the limitation on the access door is relieved. Therefore, when the limiting device is installed, any other redundant parts do not need to be installed on the access door or the access hole, the structure is simple, and the reliability is very high.

In this embodiment, the limiting device 4 is first detachably connected to the edge 31 of the service opening. After the access door 1 is closed, the limiting device 4 is rotated until the edge of the access door 1 enters the clamping groove 42, so that the clamping groove 42 is clamped with the access door 1, and the limiting of the limiting device 4 on the access door 1 is realized; when the limiting device 4 rotates to the position that the access door 1 exits from the clamping groove 42, the limiting device 4 is used for limiting the access door 1.

In order to meet the requirements of installation and rotation of the limiting device, the edge 31 of the access opening in the embodiment is provided with an inwards concave arc-shaped notch 32 of the access opening, and the clamping groove 42 of the limiting clamping portion 41 is clamped with the arc-shaped notch 32 of the access opening to realize detachable connection of the limiting device 4 and the edge 31 of the access opening. If the limiting device only needs to rotate for a certain angle, the arc notch only needs to meet the requirement of the stroke of the rotation of the matched part for limiting the rotation, and the use requirement can be met only by partial arc.

In this embodiment, in order to improve the user experience, the access door 1 is also provided with an inward concave arc-shaped notch matching with the access opening arc-shaped notch 32. Such setting can satisfy stop device free rotation's requirement between access door and access hole. The center of gravity of the limiting device 4 of the invention is outside the axis of the limiting device 4 when rotating. Make stop device 4 can be under the inoperative condition when rotation to static equilibrium state, just rotate draw-in groove 42 to the limiting position with the marginal 31 difference joint of access door 1 and access hole, make access door 1 can obtain closing spacingly in good time.

And when the access door is closed, the gap area formed by the edge 31 of the access opening and the circular arc gap of the access door 1 is smaller than the area of the base plate 44. As shown in figure 3, the arrangement ensures that the substrate can be ensured to shield the gap no matter the limiting device rotates to any angle under the condition that the access door is closed, the protection requirement of the electric equipment in the dishwasher is met, and external water or foreign matters and the like are prevented from falling into the containing cavity of the base of the dishwasher.

As shown in fig. 2, the access door 1 has a connecting edge 11 rotatably connected with the access opening 3, and the access door 1 rotates around the connecting edge 11, so that the access door 1 is opened/closed; the connecting edge 11 is arranged in the vertical direction. That is to say that the rotation axis of access door in this embodiment is in vertical direction, consequently only need with on the access door with connect the relative vertical limit in limit fixed with the access hole of limit, just can satisfy the spacing when the access door closes. Therefore, as shown in fig. 3, when the limiting device 4 can rotate to a static balance state under the non-action condition, the clamping groove 42 rotates to the bottom and is respectively clamped with the access door 1 and the edge 31 of the access hole, and the purpose of timely limiting after the access door is closed is realized.

As shown in fig. 1 to 4, the base plate 44 of the limiting device 4 is located near the housing 6, and the cover plate 43 is located far away from the housing 6, so that when the limiting device 4 is located at the limit releasing position, the access door 1 can be prevented from being opened towards the inside of the dishwasher, thereby avoiding damage to internal equipment due to opening of the access door 1. In order to make it easier for the user to turn the stop means, the present invention further provides a handle 45 attached to the outer surface of the web 43.

The above embodiments may be implemented individually or in combination. Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A dish washing machine comprises a shell, and is characterized in that the shell is provided with an access hole and an access door matched with the access hole; connecting ribs for connecting the access door and the access opening are arranged between the access door and the access opening, and the connecting ribs are disconnected when the access door is opened/closed for the first time;

the dishwasher also comprises a limiting device which is rotatably arranged between the access door and the access hole; the limiting device is provided with a limiting clamping part, and the limiting clamping part is respectively in limiting clamping connection with the edges of the access door and the access hole by rotating the limiting device;

a gap is arranged between the access door and the access opening, the limiting device is detachably assembled in the gap, and the limiting device can rotate in the gap;

the limiting clamping part is provided with a clamping groove extending along the side surface of the limiting clamping part in the circumferential direction, after the access door is closed, the limiting device is rotated to enable the edge of the access hole and the access door to be respectively inserted into the clamping groove, the edge of the access hole and the access door are detachably connected, and therefore the limiting of the access door is achieved;

when the limiting device limits the access door after the access door is closed, the access door is inserted into the clamping groove, the matching part is arranged on the outer edge of the access door, the edge where the matching part is arranged is a matching edge, and the connecting rib is arranged on the access door and is connected with and/or opposite to the matching edge.

2. The dishwasher of claim 1, wherein the access door has a connecting edge rotatably connected to the housing, and the connecting rib is provided on an edge of the access door adjacent to and/or opposite to the connecting edge.

3. The dishwasher of claim 2, wherein the access door and the housing have a gap therebetween, and the connecting rib has one end connected to the access door and the other end connected to the access opening through the gap.

4. The dishwasher of claim 3, wherein the connection of the connection rib and the access door is located at an outer edge of the access door and is integrally formed with the access door.

5. The dishwasher of claim 3, wherein the gap between the access door and the housing is located between the access door edge and the inner wall of the access opening, and when the access door is closed, the access door is entirely located in the access opening, and the access door is flush with the outer surface of the housing; the connecting rib is connected with the access hole on the inner wall of the access hole.

6. The dishwasher of claim 4, wherein the number of the connection ribs is plural, and a space width between adjacent connection ribs is larger than a width of the connection ribs.

7. The dishwasher of claim 6, wherein the web thickness is no greater than the thickness of the access door.

8. The dishwasher of any one of claims 1 to 7, wherein a base is provided at the bottom of the dishwasher, a hollow cavity is provided in the base housing, and the access opening and the access door are provided on the side of the base.

9. The dishwasher of claim 8, wherein the access opening and access door are provided on a side of the base located on a front face of the dishwasher.

10. The dishwasher of claim 8, wherein a drain pump is disposed in the cavity, and the access opening is disposed at a position corresponding to the drain pump on a side surface of the housing of the base.