Dish-washing machine door body structure and dish-washing machine

Abstract

The door body structure comprises a main door body (11) used for correspondingly opening and closing an opening (31) of a washing cavity (3) of the dish washing machine; a part of the main door body (11) is arranged to be a taking and placing opening (111), and the taking and placing opening (111) enables a part of the opening (31) of the washing cavity (3) to be communicated with the outside; an auxiliary door body (12) is arranged on the main door body (11), and the auxiliary door body (12) is used for opening and closing the taking and placing opening (111); the auxiliary door body (12) is provided with a shelf slide way (18), and the shelf slide way (18) is used for supporting and guiding a shelf (6) in the washing cavity (3) to slide out when the auxiliary door body (12) is opened. The shelf slideway is arranged on the auxiliary door body, so that when the auxiliary door body is opened, the shelf which is taken and placed from the taking and placing opening can be guided and supported by the additionally arranged shelf slideway, and the effect that the shelf which enters and exits from the taking and placing opening is effectively supported by the auxiliary door body can be achieved; and therefore, the convenience of taking and placing part of the shelves by the user through the taking and placing opening is greatly improved.

Description

Technical Field

[0001] This invention belongs to the field of dishwashers, specifically, it relates to a dishwasher door structure with a secondary door, and also to a dishwasher having the above-mentioned dishwasher door structure. Background Technology

[0002] In today's society, dishwashers have become an indispensable kitchen appliance in the home, used to automatically clean tableware such as bowls, chopsticks, plates, and dishes.

[0003] Dishwashers typically have two shelves arranged vertically within their washing chamber. Generally, only one door is installed on the opening side of the washing chamber, allowing the entire chamber to be opened or closed to access the two shelves individually or simultaneously. However, existing dishwasher programs may vary, and for washing small quantities of dishes, only one shelf may be needed. In such cases, opening the door exposes both shelves to the outside environment, potentially leading to contamination of dishes placed on unused shelves.

[0004] To allow for separate access to the two shelves, some existing solutions involve installing two doors arranged vertically at the front opening of the washing chamber. These two independent doors can be opened or closed independently to access the upper or lower shelf. While this arrangement facilitates access to different shelves, it requires two sets of door connecting components on the dishwasher's body where the washing chamber is located. This affects the spatial arrangement of the machine and reduces its structural strength.

[0005] Therefore, in order to solve the above technical problems, it is necessary to design a dishwasher door structure that can open all or part of the front opening of the washing chamber at the same time, so as to achieve the purpose of simultaneous or independent loading and unloading of the upper and lower shelves.

[0006] Furthermore, how to use the improved dishwasher door structure to guide and support the removed shelf when taking it out is also a technical problem that urgently needs to be solved.

[0007] In view of this, the present invention is proposed. Summary of the Invention

[0008] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a dishwasher door structure to achieve the purpose of taking out and placing different shelves in the washing chamber individually or simultaneously; at the same time, another objective of the present invention is to provide a dishwasher door structure to achieve the purpose of effectively guiding and supporting the removed shelves by using the fully or partially opened door.

[0009] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is as follows:

[0010] A dishwasher door structure includes: a main door for opening and closing the washing chamber of the dishwasher; a portion of the main door is configured as a pick-up and drop-off opening, which connects a portion of the washing chamber opening to the outside; a secondary door is mounted on the main door for opening and closing the pick-up and drop-off opening; and a shelf slide rail is provided on the secondary door for supporting and guiding a shelf in the washing chamber to slide outward when the secondary door is opened.

[0011] Furthermore, the secondary door is hinged to the main door and can be flipped outward. The side of the secondary door facing the washing chamber is the inner side, and the shelf slide is provided on the inner side. When the secondary door is flipped outward to the open position, the shelf slide extends horizontally in the horizontal space outside the auxiliary opening, which is used to support and guide the shelf that slides out or into the self-access opening.

[0012] Furthermore, the lower side of the secondary door is connected to the main door via a hinge structure horizontally arranged along an axis. A limiting structure is provided between the secondary door and the main door to keep the secondary door horizontal when it is flipped outward to the open position. The shelf slide is located on the upper side of the secondary door when it is in the open position. When the secondary door is in the open position, the shelf slide supports the shelf that slides out of the retrieval opening.

[0013] Furthermore, the washing chamber is provided with a slide rail to support the horizontal sliding of the shelf; when the secondary door is in the open position, the shelf slide rail is coplanar with the slide rail, which is used to guide the shelf to slide out of the self-removal opening or into the washing chamber.

[0014] Furthermore, the shelf slide provided on the secondary door body is a second slide, which includes sliding protrusions on the left and right sides of the inner side of the secondary door body. The two sliding protrusions are connected by a limiting protrusion at the end of the inner side of the secondary door body away from the hinge structure. The sliding protrusion and the limiting protrusion are integrally provided. The sliding protrusion and the limiting protrusion are formed by strip-shaped protrusions provided on the inner side of the secondary door body.

[0015] Furthermore, the main door body is provided with a pick-up and put-out opening at the top; the secondary door body covers the pick-up and put-out opening at the top of the main door body; when the secondary door body closes the pick-up and put-out opening, the side of the main door body and the secondary door body away from the washing chamber is the outer side, and the outer side of the main door body and the secondary door body are together in the same vertical plane.

[0016] Furthermore, the portion of the main door body away from the hinge structure is the first main door body portion, and the portion near the hinge structure is the second main door body portion; when the secondary door body is closed corresponding to the retrieval opening on the upper part of the main door body, the secondary door body overlaps with the first main door body portion of the main door body; the first main door body portion is provided with the retrieval opening; in the thickness direction of the door body structure, there is a thickness difference of a set distance between the outer side surface of the first main door body portion and the outer side surface of the second main door body portion, and the set distance is equal to the thickness of the secondary door body.

[0017] Furthermore, in the thickness direction of the door structure, the outer side of the first main door portion is located on the side of the washing chamber relative to the outer side of the second main door portion, and the outer side of the first main door portion and the outer side of the second main door portion are separated by a set distance, which is equal to the thickness of the secondary door portion.

[0018] Furthermore, the top of the secondary door is provided with an upper bend that bends horizontally toward the washing chamber. The upper bend covers the upper side of the main door, and the top surface of the upper bend is flush with the top surface of the dishwasher body.

[0019] Furthermore, the first main door body portion on the upper part of the main door body is provided with a recessed groove portion that is recessed towards the interior of the washing chamber, and the bottom of the groove portion is provided with the take-up and put-out opening; when the secondary door body is closed corresponding to the take-up and put-out opening on the upper part of the main door body, the secondary door body is closed corresponding to the first main door body portion, and the secondary door body is embedded in the groove portion, the depth of the groove portion being equal to the thickness of the secondary door body.

[0020] Another object of the present invention is to provide a dishwasher, comprising a body, wherein the body has a washing chamber and one side of the washing chamber has an opening; and the dishwasher door structure described above is closably mounted on the opening side of the washing chamber of the body.

[0021] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0022] With the above-mentioned design, the dishwasher door structure can be fully or partially opened to allow access to the washing chamber, enabling users to access some or all of the shelves by installing a single door. Furthermore, by installing a secondary door that can partially open and close the opening, the dishwasher can accommodate multiple access and closing methods with only a single door structure, effectively simplifying the operation of opening and closing the dishwasher door.

[0023] By installing shelf slides on the secondary door, the shelves that are accessed and placed through the self-service opening can be guided and supported when the secondary door is opened. This effectively supports the shelves that enter and exit through the self-service opening, greatly improving the convenience for users to access some shelves through the self-service opening.

[0024] At the same time, the present invention has a simple structure, significant effects, and is suitable for widespread use.

[0025] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0026] The accompanying drawings, as part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention, but do not constitute an undue limitation of the invention. Obviously, the drawings described below are merely some embodiments, and those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0027] Figure 1 This is a schematic diagram of the dishwasher in an embodiment of the present invention;

[0028] Figure 2 This is a schematic diagram of the secondary door of the dishwasher door structure in the open state in an embodiment of the present invention;

[0029] Figure 3 This is a schematic diagram of the secondary door of the dishwasher door structure in the closed state in an embodiment of the present invention;

[0030] Figure 4 and Figure 5 This is a schematic diagram of the outer structure of the dishwasher door structure in different implementations of the present invention;

[0031] Figure 6 This is a schematic diagram of the secondary door of the dishwasher in the open state in an embodiment of the present invention;

[0032] Figure 7 This is a schematic diagram of the upper shelf of the dishwasher in the removed state in an embodiment of the present invention;

[0033] Figure 8 This is a schematic diagram of the lower shelf of the dishwasher in the removed state in an embodiment of the present invention;

[0034] Figures 9 to 12 These are schematic diagrams of dishwasher door structures implemented in different ways according to embodiments of the present invention;

[0035] Figure 13 This is a schematic diagram of the inner side of a door structure in an embodiment of the present invention;

[0036] Figure 14 This is an embodiment of the present invention. Figure 13 A schematic diagram of a secondary door in an open state;

[0037] Figure 15 This is an embodiment of the present invention. Figure 13 A schematic diagram of another type of secondary door in an open state;

[0038] Figure 16 This is an embodiment of the present invention. Figure 14 A cross-sectional view of the secondary gate when it is closed;

[0039] Figure 17 This is a schematic diagram of a dishwasher according to an embodiment of the present invention;

[0040] Figure 18 This is a schematic diagram of another dishwasher in an embodiment of the present invention.

[0041] Key components labeled in the diagram:

[0042] 1. Door structure; 2. Machine body; 3. Washing chamber; 6. Shelf; 61. Upper shelf; 62. Lower shelf; 11. Main door; 111. Retrieval opening; 12. Secondary door; 13. Hinge structure; 17. Limiting structure; 18. Shelf slide; 114. First main door section; 115. Second main door section; 113. First slide; 122. Second slide; 1221. Sliding protrusion; 1222. Limiting protrusion; 123. Handle; 31. Opening; 101. Inner side; 102. Outer side; 103. Bending part; 1031. Upper bending part; 131. Hinge plate; 132 133. Hinge seat; 171. Hinge shaft; 172. Damper; 173. Drive motor; 174. Counterweight; 175. Pull rope; 176. Rotating shaft; 177. Input end gear; 178. Output end gear; 120. Secondary door liner; 1201. Secondary door mounting cavity; 110. Main door liner; 1101. Main door mounting cavity; 301. Upper shelf slide rail; 302. Lower shelf slide rail; 1111. Lower frame; 112. Recessed part; 121. Covering part; 1211. First protrusion; 1212. Second protrusion; 14. Sealing strip; 16. Guide structure; 161. Guide groove.

[0043] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0044] To make the objectives, 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 accompanying drawings. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0045] In the description of this invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0046] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0047] like Figures 1 to 12 As shown in the embodiment of the present invention, a dishwasher is described, comprising: a body 2, a washing chamber 3 inside the body 2, and an opening 31 on one side of the washing chamber 3. The opening side of the washing chamber 3 can be located in any position, such as up, down, left, right, front, or back. For ease of description, this embodiment of the present invention uses the side of the dishwasher facing the user when it is placed vertically on the ground as the front side, with the opening 31 of the washing chamber 3 located on the front side as an example. Simultaneously, a door structure 1 is installed on the front side of the body 2, which can correspond to opening and closing the opening 31 of the washing chamber 3. The door can be installed in any existing way; for ease of description, this embodiment of the invention will be described in the example of the door structure 1 being installed in a way that allows it to be flipped outwards and opened via a door hinge structure. That is, the door structure 1 is vertically set at the front opening 31 of the body 2, and the lower side of the door structure 1 is connected to the body 2 via two door hinge structures set on the left and right respectively. The two door hinge structures are coaxially set, and the door structure can be flipped outwards around the hinge axis of the door hinge structure to open the front opening 31 of the body 2.

[0048] In this embodiment of the invention, the dishwasher door structure 1 includes: a main door 11, which constitutes the main body structure of the door structure 1; a portion of the main door 11 is configured as a pick-up and drop-off opening 111, which extends through the front and rear of the main door 11, allowing the user to pick up and drop off some shelves placed in the washing chamber 3 using the open pick-up and drop-off opening 111; preferably, for ease of user operation, the main door 11 of the door structure 1 can be divided into upper and lower parts, namely a first main door part 114 and a second main door part 115, respectively. The pick-up and drop-off opening 111 is provided on the upper first main door part 114, and a secondary door 12 is correspondingly installed on the upper first main door part 114 of the door structure 1, which can be opened and closed, so that after the secondary door 12 is opened, the user can easily pick up and drop off the upper shelf 61. Of course, the aforementioned secondary door 12 can also be set at any position such as the lower part, left side, or right side of the main door 11.

[0049] In this embodiment of the invention, the secondary door 12 and the main door 11 are connected by an openable and closable structure, so that the secondary door 12 can open or close the retrieval opening 111 on the main door 11. In this embodiment of the invention, for ease of description, the secondary door 12 and the main door 11 are connected by a lower hinge as an example for discussion. Of course, the secondary door 12 and the main door 11 can also be assembled using any other existing structural method.

[0050] With the above configuration, the dishwasher door structure 1 can fully or partially open the opening 31 of the washing chamber 3, so that by installing a single main door 11 on the dishwasher, some or all of the shelves 6 can be accessed and placed separately. At the same time, by installing a secondary door 12 on the main door 11 that can open and close some of the openings 31, the dishwasher can accommodate multiple access and opening / closing methods with only a single door structure 1, thereby effectively simplifying the operation steps of opening and closing the dishwasher door.

[0051] like Figures 1 to 8 As shown, this embodiment introduces a dishwasher door structure 1, including: a main door 11, used to open and close the opening 31 of the washing chamber 3 of the dishwasher; a portion of the main door 11 is configured as a take-up opening 111, which connects the portion of the opening 31 of the washing chamber 3 to the outside; a secondary door 12 is installed on the main door 11, which is used to open and close the take-up opening 111; a shelf slide 18 is provided on the secondary door 12, which is used to cooperate with the shelf 6 in the washing chamber 3 to slide outward when the secondary door 12 is opened.

[0052] By setting a shelf slide 18 on the secondary door body 12, when the secondary door body 12 is opened, the added shelf slide 18 can be used to guide and support the shelf 6 that is taken out and put in through the self-access opening 111. This achieves the effect of the shelf 6 entering and exiting through the self-access opening 111 being effectively supported by the secondary door body 12, thereby greatly improving the convenience for users to take out and put in some shelves through the self-access opening 111.

[0053] In this embodiment, the secondary door 12 is hinged to the main door 11 and can be flipped outward. The side of the secondary door 12 facing the washing chamber 3 is the inner side 101, and a shelf slide 18 is provided on the inner side 101. The lower side of the secondary door 12 is connected to the main door 11 via a hinge structure 13 arranged horizontally along the axis. A limiting structure is provided between the secondary door 12 and the main door 11 to keep the secondary door 12 horizontal when it is flipped outward to the open position. The shelf slide 18 is provided on the upper side of the secondary door 12 when it is in the open position. When the secondary door 12 is in the open position, the shelf slide 18 is used to support the shelf 6 that slides out of the self-access opening and guide the shelf 6 to slide in or out.

[0054] Of course, in this embodiment of the invention, the discussion is based on the example of the lower side of the secondary door 12 being hinged to the main door 11. Alternatively, the upper side, left side, or right side of the secondary door 12 can be hinged to the main door 11, so that when the secondary door 12 is flipped outward to the open position, the inner side 101 of the secondary door 12 is above, to the left, or to the right of the retrieval opening 111, and the shelf slide 18 provided on the inner side 101 of the secondary door 12 is located in the front space of the retrieval opening 111. The shelf slide 18 provided on the secondary door 12 can still be used to support and guide the shelf that slides horizontally out or into the retrieval opening 111 (not shown in the accompanying drawings).

[0055] In this embodiment, the washing chamber 3 is provided with multiple shelves 6 arranged vertically. At least the uppermost shelf 61 is opposite to the access opening 111, so that the uppermost shelf 61 can be removed after the secondary door 12 opens the access opening 111. Of course, multiple shelves 6 can also be opposite to the access opening 111, so that multiple shelves 6 located in the upper part of the washing chamber 3 can be removed or placed after the secondary door 12 opens the access opening 111. The following discussion focuses on the example of the washing chamber 3 having two layers of shelves 6, namely an upper shelf 61 and a lower shelf 62, with the upper shelf 61 being removed or placed through the access opening 111.

[0056] The washing chamber 3 is provided with an upper shelf slide rail 301 that supports the horizontal sliding of the upper shelf 61; such as Figure 7As shown, when the secondary door 12 is in the open position, the upper shelf slide 301 inside the washing chamber 3 is at the same height as the shelf slide 18 on the inner side 101 of the secondary door 12. This guides the upper shelf 61 to slide out of the washing chamber 3 from the retrieval opening 111, guided sequentially by the upper shelf slide 301 and the shelf slide 18. Preferably, the top surfaces of the upper shelf slide 301 and the shelf slide 18 are set to the same horizontal plane or slightly inclined downwards towards the inside of the washing chamber 3, further facilitating the support and guidance of the upper shelf 61 by the cooperation of the two slides set inside and outside the washing chamber 3.

[0057] In this embodiment, the shelf slide 18 provided on the secondary door 12 is a second slide 122. The second slide 122 includes sliding protrusions 1221 located on the left and right sides of the inner side of the secondary door 12. The two sliding protrusions 1221 are connected at the ends of the inner side 101 of the secondary door 12 away from the hinge structure 13 via limiting protrusions 1222, so that the shelf 6 in the washing chamber 3 is supported and guided by the sliding protrusions 1221 and slides smoothly out of the retrieval opening 111, and can utilize the limiting protrusions 1222 to facilitate the sliding of the shelf 6 in the washing chamber 3. The protrusion 1222 restricts the shelf 6 that slides out of the washing chamber 3 and prevents the shelf 6 from falling off the sub-door body 12 after sliding out of the washing chamber 3. In addition, the shelf slide 18 on the sub-door body 12 can also support the shelf that slides out of the washing chamber 3, so that the user can take the slid-out shelf 6 upward. The shelf slide 18 on the sub-door body 12 can ensure the guidance and support of the shelf 6 during the sliding process, and also avoid the shelf slide 18 restricting the taking and putting of the slid-out shelf 6.

[0058] In this embodiment, the sliding protrusion 1221 and the limiting protrusion 1222 are integrally formed to constitute the second slide rail 122. The second slide rail 122 can also be integrally formed with the sub-door body 12 or fixedly installed. Preferably, the connection between the sliding protrusion 1221 and the limiting protrusion 1222 on both sides of the second slide rail 122 is provided with an arc-shaped transition portion so that the second slide rail 122 extends along a "U" shape.

[0059] In this embodiment, the sliding protrusion 1221 and the limiting protrusion 1222 are composed of strip-shaped protrusions provided on the inner side surface 101 of the sub-door body 12. The upper side of the strip-shaped protrusion is in the same plane. The lower part of the shelf 6 that slides in and out from the take-up opening 111 can be placed on the upper side surface of the strip-shaped protrusion. A pulley supported on the strip-shaped protrusion can also be provided on the shelf 6. With the above structure, the shelf 6 and the shelf slide 18 can achieve a relative sliding and limiting connection.

[0060] In this embodiment, the main door 11 is provided with a pick-up and put-out opening 111 at the top; the secondary door 12 covers the pick-up and put-out opening 111 at the top of the main door 11; when the secondary door 12 closes the pick-up and put-out opening 111, the outer side 102 of the main door 11 and the secondary door 12 away from the washing chamber 3 of the dishwasher are in the same vertical plane, so that the outer side 102 of the entire door structure 1 of the dishwasher forms a vertical plane, thereby greatly improving the aesthetic appearance of the outer side of the door structure 1 of the dishwasher.

[0061] like Figure 3 As shown, in this embodiment, the secondary door 12 is closed on the upper part of the main door 11. The secondary door 12 and the first main door part 114 on the upper part of the main door 11 are respectively overlapped. The area where the first main door part 114 on the upper part of the main door 11 overlaps with the secondary door 12 is the door opening. The door opening is provided with a pick-up and put-out opening 111. The side of the main door 11 away from the washing chamber 3 is the outer side 102. The outer side 102 of the door opening is offset towards the inside of the washing chamber 3 by a set distance relative to the outer side 102 of other parts of the main door 11. The set distance is equal to the thickness of the rest of the main door 11, so that after the secondary door 12 closes the pick-up and put-out opening 111, the outer side 102 of the secondary door 12 and the main door 11 form a vertical surface, thereby effectively improving the overall aesthetics of the dishwasher door structure 1.

[0062] Meanwhile, preferably, in order to further ensure the overall aesthetics of the door structure 1, after the secondary door 12 closes the access opening 111 of the main door 11, the inner side 101 of the main door 11 and the inner side 101 of the secondary door 12 are in the same vertical plane, so that after the door structure 1 is opened outward as a whole, the inner side 101 of the side of the door structure 1 facing the user still forms an overall smooth surface.

[0063] In addition, in this embodiment, the inner side 101 of the lower part of the main door 11 is provided with a first slide rail 113 protruding into the washing chamber 3. The first slide rail 113 includes strip-shaped protrusions protruding into the washing chamber 3 on the left and right sides of the inner side 101 of the main door 11. The first slide rail 113 on the main door 11 is connected to the second slide rail 122 on the secondary door 12 so that after the secondary door 12 closes the take-up and take-down opening 111, the second slide rail 122 on the secondary door 12 and the first slide rail 113 on the main door 11 are connected to form a whole slide rail structure. When the main door 11 is flipped open outward, a whole horizontally extending "U"-shaped shelf slide rail 18 is formed on the upper side of the main door 11 to support and guide the lower shelf 62 as it slides out and in through the opening 31 of the washing chamber 3.

[0064] In this embodiment, the inner sidewalls of the main door 11 and the secondary door 12 are respectively provided with a first slide rail 113 and a second slide rail 122, which are spliced ​​together to form a shelf slide rail 18. Figure 6 and Figure 7 As shown, after the secondary door 12 flips open outwards, the second slide rail 122 extends horizontally to the upper shelf slide rail 301 in the washing chamber 3 or gradually slopes downwards from back to front, serving to guide and support the upper shelf 61 as it slides outwards; simultaneously, as Figure 8 As shown, after the main door 11 is flipped open outward, the first slide rail 113 and the second slide rail 122 are both flush with the lower shelf slide rail 302 in the washing chamber 3 or extend downward from back to front, so as to guide and support the lower shelf 62 when it slides outward.

[0065] like Figure 8 As shown, in this embodiment, the first slide rail 113 is disposed on the left and right sides of the inner wall of the second main door body 115, and the second slide rail 122 is disposed on the left and right sides of the inner wall of the secondary door body 12, corresponding to the first slide rail 113 to form two slide rails arranged in the same direction; and the tops of the slide rails on the left and right sides of the second slide rail 122 are connected to each other, so that after the secondary door body 12 is opened to the horizontal position, the second slide rail 122 can form a horizontally extending "U" shaped slide rail, so as to facilitate the sliding of the upper shelf 61 outward. The first slide rail 113 and the second slide rail 122 together form a horizontally extending "U"-shaped slide rail after the secondary door and the main door are simultaneously flipped outward to a horizontal position, providing guidance and support for the lower shelf 62 as it slides outward. Furthermore, the connecting portions on the left and right sides of the second slide rail 122 can be used to block the sliding upper shelf 61 and lower shelf 62, preventing them from sliding out excessively and causing them to detach from the slide rail. In addition, in this embodiment, the second slide rail 122 can extend entirely into the access opening 111, and the second slide rail 122 is in sealed contact with the inner circumference of the access opening 111, achieving the effect of sealing the junction of the secondary door and the main door using the slide rail.

[0066] In this embodiment, as shown in the figure above, the upper shelf 61 and the lower shelf 62 can be pulled outwards and supported on the upper shelf slide 301 and the lower shelf slide 302 in the washing chamber 3, respectively. Alternatively, the upper shelf slide 301 and the lower shelf slide 302 can be configured as two parts that can be pulled out horizontally, with one part fixed to the washing chamber 3 and the other part supporting the upper shelf slide 301 and the lower shelf slide 302 respectively. This allows the movable part of the upper or lower shelf slide in the washing chamber 3 to be pulled out along with the upper or lower shelf 6, and the shelf slide 18 provided on the door structure 1 to support the movable part of the slide. This also achieves the effect of using the shelf slide 18 on the door structure 1 to support the pulled-out shelf 6 upwards.

[0067] like Figure 3 and Figure 4 As shown, in this embodiment, when the secondary door 12 and the main door 11 are overlapped, the following configuration can be made: the outer periphery of the secondary door 12 is provided with a bent portion 103 extending towards the washing chamber 3. The bent portion 103 covers the outer periphery of the main door 11, so that the bent portion 103 of the secondary door 12 constitutes part of the outer periphery of the entire door structure 1, so that the layered structure cannot be seen when observing the outer periphery of the door structure 1, further improving the aesthetics of the dishwasher door structure 1.

[0068] Preferred, such as Figure 3 As shown, the top of the secondary door 12 is provided with an upper bending portion 1031 that bends horizontally towards the washing chamber 3. The upper bending portion 1031 covers the upper side of the main door 11, and the top surface of the upper bending portion 1031 is flush with the top surface of the dishwasher body 2. This ensures that when the dishwasher door structure 1 is closed, the top surface of the door structure 1 is flush with the body 2, so that the user cannot observe the stacked structure of the dishwasher door structure 1 from above, effectively improving the overall aesthetics of the dishwasher door structure 1.

[0069] In addition, side bending portions that bend towards the washing chamber 3 can be provided on the left and right sides of the auxiliary door body 12. The side bending portions cover the corresponding side of the upper part of the main door body 11, and the corresponding side of the lower part of the main door body 11 is flush with the side bending surfaces, so that the user still cannot observe the stacked structure of the dishwasher door structure 1 from both sides (not shown in the attached drawings).

[0070] like Figure 5As shown, in this embodiment, when the secondary door 12 and the main door 11 are assembled by embedding, a groove portion recessed towards the inside of the washing chamber 3 can be provided on the upper part of the main door 11, and a pick-up and put-out opening 111 is provided at the bottom of the groove portion; the secondary door 12 is correspondingly closed on the upper part of the main door 11, and the secondary door 12 is embedded in the groove portion. The depth of the groove portion is equal to the thickness of the secondary door 12, so that when the secondary door 12 closes the pick-up and put-out opening 111, the front side of the secondary door 12 is flush with the front side of the main door 11, forming a vertical plane.

[0071] In this embodiment, to facilitate the opening and closing of the secondary door 12, a handle 123 can be provided on the outside of the secondary door 12. The handle 123 can be a protrusion or a recess on the outer wall of the secondary door 12, allowing the user to easily insert or grasp the handle 123 to achieve the effect of pulling the secondary door 12 inward and outward, thereby greatly improving the convenience of the user in opening and closing the secondary door 12. At the same time, after the secondary door 12 is closed on the main door 11, the user can also use the handle 123 to open and close the entire door structure 1, so as to achieve the effect of opening or closing the front opening 31 of the washing chamber 3 as a whole.

[0072] like Figures 9 to 12 As shown, this embodiment introduces a dishwasher door structure, which includes: a main door 11 for corresponding to opening and closing the opening 31 of the washing chamber 3 of the dishwasher; a portion of the main door 11 is configured as a take-up opening 111, which connects the portion of the opening 31 of the washing chamber 3 to the outside; a secondary door 12 is installed on the main door 11, which is used to open and close the take-up opening 111; the secondary door 12 is pivotally connected to the main door 11, and a limiting structure 17 is installed at the pivot connection, which is used to limit the secondary door 12 to the open position. By adding a limiting structure 17 between the secondary door 12 and the main door 11, the secondary door 12 is locked when it is opened and closed alone, thus achieving a significant technological advancement that allows the secondary door 12 to be stably kept in the open position. At the same time, the limiting structure 17 added between the secondary door 12 and the main door 11 can restrict the opening and closing of the secondary door 12 to the set open position, so as to effectively prevent the secondary door 12 from opening and closing too much and avoid the secondary door 12 from falling off. It can also effectively support the sliding upper shelf 61 by keeping the secondary door 12 in the horizontal open position.

[0073] In this embodiment, the secondary door 12 and the main door 11 are pivotally connected on the left and right sides by a hinge structure, and the hinge axes of the two hinge structures are coaxially arranged to form the pivot axis at the pivot connection between the secondary door 12 and the main door 11; a limiting structure 17 is provided at the hinge axis of at least one hinge structure; optionally, the limiting structure 17 can be added to either the left or right hinge structure, or the limiting structure 17 can be added to both hinge structures at the same time, and the limiting structures 17 added to the two hinge structures can be the same structure or different structures, etc., all of which are within the protection scope of this application.

[0074] In this embodiment, the limiting structure 17 can be any existing structure or combination thereof that can lock and fix the secondary door 12 when it is moved to the open position; for example, as follows:

[0075] like Figure 11 As shown, in this embodiment, the limiting structure 17 includes a counterweight 173, which is movable up and down in the main door body 11; a pull rope 174, with both ends connected to the secondary door body 12 and the counterweight 173 respectively; and a rotating shaft 175, which is fixed on the main door body 11, with its axis extending horizontally and located at the hinge point between the secondary door body 12 and the main door body 11. The pull rope 174 is wound around the rotating shaft 175 and is used to provide a limiting force to the secondary door body 12 that hinders its opening direction when the secondary door body 12 is flipped open outwards, thereby achieving the effect of braking and limiting the opened secondary door body by using gravity. During the process of the secondary door 12 flipping outward to open the access opening 31, the secondary door 12 rotates around the hinge axis of the hinge structure, which can be set to the aforementioned pivot 175. During the outward flipping process, the secondary door 12 pulls the counterweight 173 upward via the pull rope 174. During the pulling process, the counterweight 173 provides a damping force to the secondary door 12 to resist the opening direction, so that the secondary door 12 can be held at various positions during the opening process. At the same time, a limiting protrusion can be provided on the main door 11. The limiting protrusion is located on the movement path of the counterweight 173. When the secondary door 12 is opened to the horizontal opening position, the counterweight 173 abuts against the limiting protrusion on the main door 11, so that the secondary door 12 cannot continue to flip outward to open, thereby achieving the holding and locking of the secondary door 12.

[0076] Of course, the counterweight 173 can also be replaced with a spring, with the two ends of the spring connected to the main door body 11 and the pull rope 174 respectively, so that the elastic force of the spring can be replaced by the weight of the counterweight 173, so that the spring applies a pulling force to the secondary door body 12 in the closing direction through the pull rope 174, thereby keeping the secondary door body 12 in the open position without rotating outward.

[0077] like Figure 12As shown, in this embodiment, the limiting structure 17 includes a meshing gear set; the input gear 176 of the meshing gear set is disposed on the hinge shaft of the secondary door body 12, and the output gear 177 is disposed on the main door body 11. The input gear 176 meshes directly or via at least one transmission gear with the output gear 177; any gear in the meshing gear set is provided with a braking tooth. When the secondary door body 12 is in the open position, the braking meshing tooth engages with other gears to brake and mesh with each other, thereby braking the meshing gear set to continue to rotate, thereby locking the secondary door body 12 when it is in the open position and keeping the secondary door body 12 in the open position.

[0078] In addition, to achieve the effect of providing damping force during the opening and closing of the secondary gate, the following settings can be made:

[0079] like Figure 9 As shown, in this embodiment, a damper 171 is provided at the hinge structure where the main door body 11 and the secondary door body 12 are pivotally connected. The damper 171 is installed at the hinge axis of the hinge structure 13. The damper 171 includes a first part and a second part. The first part is provided on the secondary door body 12 and the second part is provided on the main door body 11. The first part and the second part are in close contact with each other. During the rotation of the secondary door body 12 relative to the main door body 11 around the axis, the friction force generated by the contact surface provides a damping force for the rotation of the secondary door body 12, so as to prevent problems such as the secondary door body 12 opening or closing too fast.

[0080] In this embodiment, the first part of the damper 171 includes a first friction plate fixedly disposed on the secondary door body 12, and the second part of the damper 171 includes a second friction plate fixedly disposed on the main door body 11. The first friction plate and the second friction plate are in contact with each other to provide damping braking force for the rotational opening and closing of the secondary door body 12 by utilizing the sliding friction between the friction plates. Preferably, the first friction plate and the second friction plate can be configured as annular friction plates coaxially disposed with the hinge shaft. The two annular friction plates are correspondingly overlapped and an elastic element is provided between the two annular friction plates. The elastic element applies a squeezing force between the two annular plates, thereby driving the two annular friction plates to move closer to each other and thereby increasing the sliding friction force.

[0081] Optionally, a protruding portion can be provided between the first friction plate and the second friction plate of the damper 171, so that when the sub-door body rotates to the set open position that is approximately horizontal, the protruding portions of the first friction plate and the second friction plate abut against each other, thereby preventing the sub-door body 12 from rotating downward and opening further. Thus, the damper 171 can be used to achieve the effect of limiting and stopping the sub-door body 12, so that the damper 171 simultaneously constitutes the limiting structure 17, which has the function of limiting the horizontally opened sub-door body 12.

[0082] like Figure 10As shown, in this embodiment, a drive motor 172 is provided at the hinge structure where the main door body 11 and the secondary door body 12 are pivotally connected. The drive motor 172 is mounted on the main door body 11, and the motor shaft of the drive motor 172 is connected to the secondary door body 12. It is used to drive the secondary door body 12 to rotate around the hinge axis to open or close accordingly, so as to achieve the effect of the secondary door body 12 automatically flipping open or closing using the driving force of the drive motor 172. Preferably, a drive motor 172 is provided at the hinge structure 13 on at least one of the left and right sides of the secondary door body 12 to provide driving force for the rotation opening and closing of the secondary door body 12, thereby achieving the effect of the secondary door body 12 automatically opening and closing the retrieval opening 111.

[0083] Optionally, the drive motor 172 has a self-locking structure for locking the hinge shaft connected to the drive motor 172. When the secondary door 12 rotates to a near-horizontal set open position, the hinge shaft connected to the drive motor 172 is locked, preventing the secondary door 12 from rotating further downwards to open. Thus, the drive motor 172 can be used to limit and stop the secondary door 12, making the drive motor 172 simultaneously constitute the limiting structure 17, which has the function of limiting the horizontally opened secondary door 12.

[0084] like Figures 9 to 12 As shown, in this embodiment, to increase the opening angle of the secondary door 12, the following configuration can be made: the secondary door 12 is provided with a hinge plate 131 extending protruding towards the washing chamber 3, and the main door 11 is provided with an upwardly protruding hinge seat 132; the extension side of the hinge plate 131 is provided with a first hinge hole, and the upper side of the hinge seat 132 is provided with a second hinge hole; the hinge shaft 133 passes through the first hinge hole and the second hinge hole respectively, for forming a hinged connection between the secondary door 12 and the main door 11. Any or a combination of the above limiting structures 17 can be installed at the hinge shaft 133 and the hinge hole to brake and lock the relatively rotating secondary door 12.

[0085] In this embodiment, the rear side of the secondary door body 12 has a secondary door liner 120, which is fastened to the rear side of the secondary door body 12, so that a secondary door mounting cavity 1201 is formed inside the secondary door body 12; the hinge structure 13 and the limiting structure 17 can be both provided in the secondary door mounting cavity 1201, so that the hinge structure 13 and the limiting structure 17 are hidden during the opening and closing of the secondary door body 12. Similarly, the rear side of the main door 11 also has a main door liner 110. The main door liner 110 is fastened to the rear side of the main door 11, so that a main door mounting cavity 1101 can also be formed inside the main door 11. This allows the hinge structure 13 and the limiting structure 17 to be partially hidden in the main door mounting cavity 1101 of the main door 11, and the other part to be hidden in the secondary door mounting cavity 1201 of the secondary door 12. This achieves the goal of hiding the hinge structure 13 and the limiting structure 17 and improving the aesthetics of the dishwasher door structure 1.

[0086] In this embodiment, the secondary door liner 120 is disposed on the rear side of the secondary door body 12, so that the secondary door liner 120 is provided with the shelf slide 18 in other embodiments; the shelf slide 18 includes strip-shaped protrusions located on the left and right sides of the secondary door body 12, the strip-shaped protrusions are formed by the secondary door liner 120, and the interior of the strip-shaped protrusions is hollow to form the secondary door mounting cavity 1201; each of the secondary door mounting cavities 1201 in the strip-shaped protrusions on the left and right sides is provided with a hinge structure 13, the hinge axes of the two hinge structures 13 are coaxially arranged, and the two hinge structures 13 connect the secondary door body 12 and the main door body 11 in a rotatable manner, so that a hinge connection that can be flipped open and closed is formed between the secondary door body 12 and the main door body 11. Meanwhile, at least one of the left and right hinge structures 13 is provided with a limiting structure 17 for locking and positioning the sub-door 12 when it is flipped outward to the open position; of course, different limiting structures 17 can be provided at the left and right hinge structures 13 respectively, for example, a damper 171 is provided at the left hinge structure 13, and a drive motor 172 is provided at the right hinge structure 13, etc.

[0087] In this embodiment, the main door 11 is provided with a pick-up and put-away opening 111 on its upper part; the secondary door 12 covers the pick-up and put-away opening 111 on the upper part of the main door 11; the lower part of the secondary door 12 is mounted on the main door 11 by means of a hinge structure 13, so that the secondary door 12 can open and close the pick-up and put-away opening 111 on the upper part of the main door 11, thereby performing individual pick-up and put-away operations on the upper shelf of the washing chamber 3.

[0088] like Figures 1 to 18 As shown, in this embodiment, the door structure 1 is used to close or open the opening of the dishwasher's washing chamber 3, forming a closed washing chamber 3 for operation. In this embodiment of the invention, the side of the door structure 1 installed on the dishwasher facing the washing chamber 3 is described as the inner side, and the side facing the user is described as the outer side.

[0089] The gate structure 1 includes a main gate 11 and a secondary gate 12.

[0090] The main door body 11 is provided with a retrieval opening 111. The retrieval opening 111 is provided on part of the main door body 11 and extends through the inner and outer sides of the main door body 11. The secondary door body 12 is movably installed on the main door body 11 by means of rotation or sliding, and can open or close the retrieval opening 111. When the secondary door body 12 closes the retrieval opening 111, it forms an integral door structure 1 with the main door body 11.

[0091] The secondary door 12 is rotatable. When the secondary door 12 is opened, it is placed horizontally. Users can use the open access opening 111 to directly take and put away the tableware on some shelves inside the washing chamber 3. Alternatively, some shelves can be slid out of the washing chamber 3 before taking and putting away the tableware.

[0092] The main door 11 can be installed on the body 2 of the dishwasher or on the inner wall of the washing chamber 3, and is used to cooperate with the secondary door 12 to seal the opening of the washing chamber 3, providing a closed working space for the dishwasher.

[0093] like Figures 13 to 16 As shown, the door structure 1 is provided with a guide structure 16, which is used to guide washing water or gas to the gap between the bottom of the secondary door body 12 and the main door body 11 for rinsing.

[0094] This invention, by providing a guide structure 16 on the door structure 1, directs washing water or air to the gap between the bottom of the secondary door 12 and the main door 11, using water or air for rinsing and cleaning. This effectively removes food residue that falls into the gap when the secondary door 12 is opened. This maintains the flexibility and ease of use of the dishwasher's door structure 1 while reducing maintenance and cleaning costs, thus improving the user experience.

[0095] The secondary door 12 is rotatably mounted on the main door 11 via a hinge or rotating shaft. The access opening 111 is located on the upper part of the main door 11. A handle 123 is provided on the upper part of the secondary door 12, and the secondary door 12 is rotatably mounted on the lower part of the access opening 111 via a hinge structure. Users can close the secondary door 12 by flipping it upwards and open it by flipping it downwards. When washing a small amount of tableware or adding tableware midway, only the secondary door 12 needs to be opened, thus reducing the space occupied during use and eliminating the need to bend over to open and close the door, improving the user experience.

[0096] Handles 123 can also be mounted on the main door 11. After the secondary door 12 is joined to the main door 11, the inner and outer surfaces of the door structure 1 are coplanar. When the secondary door 12 is locked to the main door 11, the user can close the opening of the dishwasher's washing chamber 3 by lifting the door structure 1. The secondary door 12 is fixedly hinged or slidably hinged to the main door 11. Hinges found in existing home appliances can be applied to the hinge structure of the secondary door 12 of this invention. Preferably, the hinge structure is a hinge chain structure. The main door 11 includes a first main door portion 114 and a second main door portion 115 arranged vertically. A retrieval opening 111 is located on the first main door portion 114 and extends downwards to the top of the second main door portion 115 to form a lower frame 1111. The lower frame 1111 is the lower edge of the retrieval opening 111, which has a certain width.

[0097] One design involves a guide structure 16 extending through the secondary door 12. The guide structure 16 has a certain extension length. The outlet end of the guide structure 16 penetrates the bottom wall of the secondary door 12. The inlet end of the guide structure 16 can penetrate the inner wall of the secondary door 12, using washing water from the dishwasher to rinse the gaps. Alternatively, the inlet end of the guide structure 16 can be located on the inner wall, top wall, or outer wall of the secondary door 12, corresponding to the air inside the dishwasher, the drying duct, and the external atmosphere, allowing air to enter and rinse the gaps. The guide structure 16 includes a guide groove 161, which extends along the extension direction of the lower frame 1111, penetrating the bottom wall of the secondary door 12, facilitating a large-area rinsing of the lower frame 1111.

[0098] Another option is to install the guide structure 16 on the main door body 11, and the guide structure 16 has a certain extension length. The guide structure 16 extends through to the top of the main door body 11 below the retrieval opening 111.

[0099] The inlet end of the guide structure 16 can penetrate the inner wall of the main door 11, using the washing water inside the dishwasher to rinse the gaps. The inlet end of the guide structure 16 can also be set on the inner wall or top wall of the main door 11, corresponding to the air and drying air duct inside the dishwasher, for air intake to rinse the gaps.

[0100] The guiding structure 16 includes a guiding groove 161, which extends through the lower frame 1111 (not shown in the figure) along its extension direction, facilitating a large-area rinsing of the lower frame 1111. Further, the inlet end of the guiding groove 161 communicates with the inner wall of the sub-door body 12, and the outlet end extends obliquely downward to the bottom wall of the sub-door body 12. The portion between the inlet and outlet ends of the guiding groove 161 extends along the extension direction of the lower frame 1111. The guiding groove 161 has a large width extending laterally and a small thickness extending laterally. Preferably, the guiding groove 161 is a thin sheet.

[0101] One specific design is that the inlet end of the guide channel 161 has a water inlet and the inlet end of the guide channel 161 has a water outlet, and the water inlet and the water outlet are elongated.

[0102] The water inlet penetrates the inner wall of the secondary door body 12 or the main door body 11, and the water outlet penetrates the bottom wall or lower frame 1111 of the secondary door body 12. After water enters the guide channel 161, it flushes water into the gaps to clean food debris from the gaps. A grid is provided in the water inlet to block impurities from entering during water intake and prevent food residue from being introduced into the gaps.

[0103] Another specific design involves an air inlet and an air outlet at the inlet end of the guide channel 161, both of which are elongated. The air inlet is disposed throughout the secondary door 12 or the main door 11, penetrating the bottom wall of the secondary door 12 or the lower frame 1111 of the main door 11. The guide channel 161 uses a fan to draw air into the gaps for cleaning. Preferably, the fan is located within the guide channel 161. Alternatively, the guide channel 161 is connected to the dishwasher's air duct, with the fan located within the duct.

[0104] like Figure 16 As shown, the guide groove 161 extends downward at an angle to a certain length on the outer side of the door structure 1, and then extends vertically downward to the bottom wall of the secondary door 12.

[0105] Furthermore, a blocking portion 121 is provided between the secondary door body 12 and the main door body 11. After the secondary door body 12 is flipped open, the blocking portion 121 blocks the main door body 11 below the access opening 111. The blocking portion 121 is retractably located between the secondary door body 12 and the main door body 11. At least one end of the blocking portion 121 is rollable or foldable for storage and is installed on the main door body 11 and / or the secondary door body 12; when the secondary door body 12 is opened, the blocking portion 121 unfolds to cover the lower frame 1111. Alternatively, the bottom of the secondary door body 12 has a blocking portion 121 that matches and is spliced ​​with the recessed portion 112 on the lower frame 1111. After the secondary door body 12 is flipped open, the blocking portion 121 extends inward to block the main door body 11 below the access opening 111.

[0106] The guide structure 16 penetrates the bottom of the shielding portion 121 or the recess 112 on the lower frame 1111. Preferably, the shielding portion 121 is located at the inner end of the bottom wall of the sub-door body 12, extending downward below the outer end of the bottom wall of the sub-door body 12. The two ends of the guide structure 16 are respectively provided through the inner side wall and the bottom wall of the shielding portion 121. This arrangement makes the outer side of the recess 112 higher and the inner side lower, which can prevent the washing water introduced into the recess 112 by the guide structure 16 from overflowing to the outside of the door structure 1. The guide structure 16 is respectively provided through the inner side wall and the bottom wall of the shielding portion 121 to guide the washing water or gas to below the shielding portion 121.

[0107] The guide structure 16, combined with the shielding part 121 of the secondary door 12, not only prevents food residue from falling in, but also washes and cleans up any food residue that accidentally falls between the bottom of the secondary door 12 and the main door 11. The shielding part 121 of the secondary door 12 can be a downward-protruding structure at the bottom of the secondary door 12, covering the lower frame 1111 when the secondary door 12 is opened. Alternatively, the bottom of the secondary door 12 may not protrude, but rather be arranged by the rotation of the secondary door 12, so that when the secondary door 12 is opened, the bottom of the secondary door 12 extends into the access opening 111 to cover the lower frame 1111. The bottom wall of the secondary door 12 is flat or nearly flat.

[0108] One way to set the shielding part 121 is that the shielding part 121 extends downward at an inward angle from the outer end of the bottom wall of the sub-door body 12, and the bottom of the sub-door body 12 matches and overlaps with the lower frame 1111.

[0109] One specific arrangement is that the shielding part 121 extends downward in a planar inclined manner, and the bottom of the sub-door body 12 overlaps with the plane of the lower frame 1111. The angle between the planar inclined extension of the shielding part 121 and the inclination of the inner sidewall of the sub-door body 12 is less than 45°, so that the downward protrusion of the shielding part 121 is greater than the length of the recessed part 112 of the lower frame 1111 in the inner and outer directions.

[0110] Another specific arrangement is that the blocking part 121 extends downwards at an angle with an arc-shaped surface, and the arc-shaped surface protrudes upwards or downwards, overlapping with the arc-shaped surface of the lower frame 1111. The angle between the line connecting the two starting ends of the arc-shaped surface of the blocking part 121 and the inner wall of the secondary door body 12 is less than 45°, such that the downward protrusion of the blocking part 121 is greater than the length of the recessed part 112 of the lower frame 1111 in the inner and outer directions. The recessed part 112 of the lower frame 1111 gradually extends inwards along the inclined or arc-shaped surface to the inner wall of the main door body 11.

[0111] Another configuration of the shielding part 121 is that it protrudes from the inner end of the bottom wall of the secondary door body 12, and mates with the outer end plane of the bottom wall of the secondary door body 12 to form a stepped shape at the bottom of the secondary door body 12. The bottom of the secondary door body 12 and the lower frame 1111 are matched and overlapped in a stepped manner, which not only prevents food residue from falling onto the lower frame 1111 when the secondary door body 12 is opened, but also increases the contact area, thereby improving the sealing effect of the secondary door body 12. The shielding part 121 is block-shaped, and the bottom wall is a block-shaped surface with curved, arc-shaped, or inclined surfaces. The shielding part 121 is integrally formed on the secondary door body 12.

[0112] A recess 112 is provided at the top of the second main door body 115. The recess 112 includes a first recess. The first recess is recessed at the inner end of the lower frame 1111. The first recess extends to both ends of the lower frame 1111's extension length. A blocking portion 121 includes a first protrusion 1211, extending from the bottom wall of the secondary door body 12. The first protrusion 1211 extends along the extension direction of the bottom wall of the secondary door body 12 to both ends. After the secondary door body 12 is opened, the first protrusion 1211 extends inwardly and protrudes from the lower frame 1111. After the secondary door body 12 is closed, the first protrusion 1211 matches and engages with the first recess. A guide groove 161 extends through the bottom wall of the first protrusion 1211 or extends through the top wall of the first recess. The inner sidewalls of the main door 11 and the secondary door 12 are respectively provided with a first slide rail 113 and a second slide rail 122. The first slide rail 113 and the second slide rail 122 form a shelf slide rail 18, which is used to support and guide the shelf in the washing chamber 3 to slide outward.

[0113] When the secondary door 12 is opened alone, the secondary door 12 and the second slide rail 122 are placed horizontally. The upper shelf inside the dishwasher can be pulled out to the outside of the washing chamber 3 via the second slide rail 122. When the secondary door 12 and the main door 11 are opened together, the lower shelf or the entire shelf inside the dishwasher can be pulled out to the outside of the washing chamber 3 via the shelf slide rail 18. The first slide rail 113 is disposed opposite to each other on the left and right sides of the inner sidewall of the second main door 115, and the second slide rail 122 is disposed opposite to each other on the left and right sides of the inner sidewall of the secondary door 12, corresponding to the first slide rail 113 to form two vertically disposed slide rails. The tops of the slide rails on the left and right sides of the second slide rail 122 are connected to each other. The second slide rail 122 can be inserted entirely into the loading and unloading opening 111 to achieve a sealed connection. The recessed portion 112 also includes a second recessed portion, which is recessed at the top of the first slide rail 113. The shielding portion 121 also includes a second protrusion 1212, which is disposed at the bottom of the second slide rail 122. Two second protrusions 1212 are respectively provided on the left and right sides of the sub-door body 12 and are connected to the inner sidewall of the first protrusion 1211. The bottom of the second protrusion 1212 is also lower than the inner sidewall of the sub-door body 12.

[0114] After the secondary door 12 is opened, the second protrusion 1212 extends inward and protrudes from the first slide rail 113, which can block the residue and prevent the residue from falling onto the top wall of the first slide rail 113. After the secondary door 12 is closed, the second protrusion 1212 matches and is spliced ​​with the second recess.

[0115] The shielding part 121 of this invention integrates key components of the door structure 1, such as the main door body 11, the secondary door body 12, the hinge structure, and the shelf slide 18, achieving comprehensive shielding of the main door body 11 below the access opening 111 and preventing residue accumulation. A sealing strip 14 extends from the recess 112, cooperating with the shielding part 121 to seal and prevent water leakage after the secondary door body 12 and the main door body 11 are assembled into the door structure 1. The sealing strip 14 on the recess 112 needs to be designed to minimize its impact on the guide structure 16 for rinsing food residue. A sealing strip 14 is also provided on the second slide 122, sealingly installed with the access opening 111.

[0116] like Figures 17 to 18 As shown, the present invention also provides a dishwasher, including any of the above-described door structures 1 and a washing chamber 3, wherein the door structure 1 is used to open and close the opening of the washing chamber 3. The dishwasher includes a body 2, and the washing chamber 3 is disposed within the body 2. The door structure 1 is rotatably mounted on the body 2 and is used to open or close the opening of the washing chamber 3. When the secondary door 12 is opened, the upper part of the opening of the washing chamber 3 can also be opened, and the upper shelf in the washing chamber 3 can be pulled out to take out and put in tableware. When the secondary door 12 is closed, the door structure 1, which is integral with the main door 11, works together to close the entire opening of the washing chamber 3.

[0117] The dishwasher of the present invention makes it easier for users to load and unload tableware during use, while maintaining the cleanliness and airtightness of the dishwasher.

[0118] The present invention also provides a control method for any of the above-described dishwashers. The control method includes: after the secondary door is closed, controlling a guide structure to flush water or inflate the gap between the bottom of the secondary door and the main door for cleaning. Preferably, during the dishwasher washing process, after it is detected that the secondary door is open and that the secondary door and the main door are closed together, water or air is flushed or inflated into the gap between the bottom of the secondary door and the main door for cleaning via the guide structure.

[0119] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A dishwasher door structure, characterized in that: include: The main door (11) is used to correspond to the opening (31) of the washing chamber (3) of the dishwasher for opening and closing; Part of the main door (11) is configured as a pick-up and put-out opening (111), which connects part of the opening (31) of the washing chamber (3) to the outside. The main door (11) is provided with a secondary door (12), which is used to open and close the take-out opening (111); The secondary door (12) is provided with a shelf slide (18), which is used to support and guide the shelf (6) in the washing chamber (3) to slide outward when the secondary door (12) is opened.

2. The dishwasher door structure according to claim 1, characterized in that, The secondary door (12) is hinged to the main door (11) and can be flipped outward. The side of the secondary door (12) facing the washing chamber (3) is the inner side (101), and the shelf slide (18) is provided on the inner side (101). When the sub-door (12) is flipped outward to the open position, the horizontal space portion facing the outside of the take-up opening (111) is used to support and guide the shelf (6) that slides out or into the take-up opening (111).

3. The dishwasher door structure according to claim 2, characterized in that, The lower side of the secondary door body (12) is connected to the main door body (11) via a hinge structure (13). A limiting structure (17) is provided between the secondary door body (12) and the main door body (11) to keep the secondary door body (12) horizontal when it is flipped outward to the open position. The shelf slide (18) is located on the upper side of the secondary door body (12) when it is in the open position; When the secondary door (12) is in the open position, the shelf slide (18) is used to support the shelf (6) that slides out of the self-access opening (111) upward.

4. The dishwasher door structure according to claim 3, characterized in that, The washing chamber (3) is provided with a slide rail to support the horizontal sliding of the shelf (6); When the secondary door (12) is in the open position, the shelf slide (18) and the slide together form a support surface, which is used to support and guide the shelf (6) to slide out of or into the washing chamber (3) from the take-up opening (111).

5. The dishwasher door structure according to claim 4, characterized in that, The shelf slide (18) provided on the sub-door body (12) is a second slide (122). The second slide (122) includes sliding protrusions (1221) located on the left and right sides of the inner side (101) of the sub-door body (12). The two sliding protrusions (1221) are connected by a limiting protrusion (1222) at the end of the inner side (101) of the sub-door body (12) away from the hinge structure (13).

6. The dishwasher door structure according to any one of claims 1 to 5, characterized in that, The main door body (11) is provided with a pick-up and put-out opening (111); The secondary door (12) covers the retrieval opening (111) on the upper part of the main door (11); When the secondary door (12) closes the take-out opening (111), the side of the main door (11) and the secondary door (12) away from the washing chamber (3) is the outer side (102), and the outer side (102) of the main door (11) and the secondary door (12) are in the same vertical plane.

7. The dishwasher door structure according to claim 6, characterized in that, One side of the main door (11) is pivotally connected to the washing chamber (3) via a door hinge structure; The part of the main door body (11) away from the door hinge structure is the first main door body part (114), and the part of the main door body (11) close to the door hinge structure is the second main door body part (115). The first main door body (114) is provided with the aforementioned take-up and put-out opening (111); When the secondary door body (12) is closed in the take-up and put-down opening (111), the secondary door body (12) overlaps with the first main door body (114); In the thickness direction of the door structure (1), there is a thickness difference of a set distance between the outer side surface (102) of the first main door part (114) and the outer side surface (102) of the second main door part (115), and the set distance is equal to the thickness of the secondary door body (12).

8. The dishwasher door structure according to claim 7, characterized in that, The top of the secondary door (12) is provided with an upper bend (1031) that bends horizontally toward the washing chamber (3). The upper bend (1031) covers the upper side of the main door (11), and the top surface of the upper bend (1031) is flush with the top surface of the dishwasher body (2).

9. The dishwasher door structure according to claim 6, characterized in that, The first main door body part (114) of the main door body (11) is provided with a groove that is recessed into the washing chamber (3), and the bottom of the groove is provided with the take-out opening (111). When the secondary door (12) is closed to the take-up and put-down opening (111) of the main door (11), the secondary door (12) is embedded in the groove, and the depth of the groove is equal to the thickness of the secondary door (12).

10. A dishwasher, characterized in that: include, The machine body (2) has a washing chamber (3) inside, and one side of the washing chamber (3) has an opening (31); the dishwasher door structure (1) according to any one of claims 1 to 9 is installed on the side of the opening (31) of the washing chamber (3) of the machine body (2) in an openable and closable manner.

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