Door body assembly for cleaning machine and cleaning machine
By designing a door handle structure arranged side-by-side and a push rod motor drive, the problem of corrosion of the cabinet by the built-in dishwasher door is solved, achieving efficient steam discharge and aesthetic concealment of the door, thus improving the user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO FOTILE KITCHEN WARE CO LTD
- Filing Date
- 2025-04-11
- Publication Date
- 2026-05-15
AI Technical Summary
The existing door structure of built-in dishwashers is prone to causing corrosion and damage to cabinets, and the existing door handle design affects aesthetics and user experience.
Design a door assembly that uses front and rear arm handles arranged side by side. By moving the handles, steam can be discharged and concealed at a high position. Combined with a push rod motor drive and exhaust assembly, it ensures that steam does not damage the cabinet and maintains the integrity of the door.
It achieves efficient steam removal without damaging the cabinet, while maintaining the aesthetics of the door and the user experience, thus improving overall integrity and security.
Smart Images

Figure CN224235361U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dishwasher technology, specifically to a door assembly for a cleaning machine and the cleaning machine itself. Background Technology
[0002] After a dishwasher finishes its cycle, it typically needs to expel the high-heat steam generated during the washing process from the washing chamber to dry the dishes and keep the inside of the washing chamber dry.
[0003] Modern built-in dishwashers are installed inside cabinets, with only the front of the door exposed. When expelling hot, humid steam, the exhaust pipe is usually located inside the door and extends downwards to the bottom of the door. The expelled hot, humid steam is located inside the cabinet, which can easily lead to corrosion and damage to the cabinet's wood panels.
[0004] In addition, existing dishwashers have two types of door handles: external handles and hidden handles. External handles can easily cause users to bump into things, while hidden handles disrupt the overall integrity of the front of the dishwasher door and affect the visual experience. Utility Model Content
[0005] The first technical problem to be solved by this utility model is to provide a door assembly for a cleaning machine that can maintain the integrity of the front of the door and facilitate the discharge of steam at a high position to avoid damage to the cabinet, in light of the current state of the technology.
[0006] The second technical problem to be solved by this utility model is to provide a cleaning machine that uses the above-mentioned door components, in view of the current state of the prior art.
[0007] The technical solution adopted by this utility model to solve at least one of the above-mentioned technical problems is as follows:
[0008] A door assembly for a cleaning machine includes a door body and a door handle disposed on the door body. The door handle includes a front arm and a rear arm arranged side by side and extending laterally. The front arm and the rear arm are connected as one piece. The door body has a laterally extending mounting opening. The door handle is movably constrained at the mounting opening. The rear arm has a through-hole. The front arm can cover the mounting opening when the door handle moves backward, and the rear arm can expose the vent when the door handle moves forward.
[0009] With the above structure, when venting is required, the door handle is moved forward until the rear arm covers the mounting opening. The rear arm not only covers the mounting opening but also exposes the vent hole. The hot and humid steam in the washing chamber is discharged through the vent hole, which is positioned high, without damaging the cabinet. After venting is completed, the door handle is moved backward until the forearm covers the mounting opening, thus hiding the door handle, maintaining the integrity of the front of the door and keeping it aesthetically pleasing.
[0010] In this invention, in the venting state, the forearm is positioned in front of the door, and the rear arm is flush with the door surface, exposing the vent hole. In the non-venting state, the forearm covers the mounting opening and is flush with the door surface, while the rear arm and its vent hole are located inside the door. With this structure, the integrity of the door's front is maintained regardless of whether the door handle is extended from the mounting opening in the venting state or concealed in the non-venting state, thus improving the user experience.
[0011] Preferably, the door body is provided with a drive component capable of driving the door handle to move back and forth, and this drive component is connected to the rear arm of the door handle. This structure facilitates automatic driving of the door handle's back and forth movement. An operation key can also be provided on the outer surface of the forearm, which is electrically connected to the drive component. By pressing the operation key, the user can more precisely control whether the door handle extends or retracts.
[0012] Preferably, the driving component is a push rod motor, the push rod of which extends forward and backward and connects to the rear arm of the door handle. This invention achieves door handle actuation through a push rod motor, resulting in a simple structure and reliable operation.
[0013] Preferably, the corresponding ends of the forearm and rear arm are connected by a connecting arm, which is hollow inside to form a slot with an open rear end. The front end of the push rod passes through the open end and is inserted into the slot of the connecting arm. This structure makes the assembly between the drive component and the door handle more compact and stable, thereby improving the reliability of the door handle's forward and backward movement.
[0014] Preferably, the door body is further provided with an exhaust assembly, which includes an exhaust pipe and a fan. The exhaust pipe has an air inlet communicating with the washing chamber of the cleaning machine and an air outlet communicating with the exhaust hole of the rear arm. The fan is located in the exhaust pipe and is used to provide power for exhaust. The above structure is adopted to improve exhaust efficiency.
[0015] Preferably, the exhaust assembly is located below the mounting port, with the exhaust pipe's inlet at the top and its outlet at the bottom. A venting box is provided on the back of the rear arm to surround the exhaust port, and the exhaust pipe's outlet is connected to the venting box via a venting pipe. This structure improves the sealing of the rear arm's exhaust port connection and prevents steam leakage.
[0016] Preferably, the rear arm has at least two sets of exhaust holes arranged laterally at intervals. The air guide pipe includes a first part for guiding airflow and a transverse pipe arranged laterally behind the rear arm, which is connected to the air guide box corresponding to each set of exhaust holes. This structure helps to improve exhaust efficiency.
[0017] A cleaning machine includes a housing with an opening, and a door for opening or closing the opening of the housing.
[0018] Compared with the prior art, the advantages of this utility model are as follows: The door handle of this utility model is provided with a front arm and a rear arm arranged side by side. When venting is required, the door handle is moved forward until the rear arm covers the installation opening. The rear arm not only covers the installation opening but also exposes the vent hole. The hot and humid steam in the washing chamber is discharged through the vent hole, which is positioned high, without damaging the cabinet. After venting is completed, the door handle is moved backward until the front arm covers the installation opening, thereby hiding the door handle, maintaining the integrity of the front of the door and keeping it beautiful. Attached Figure Description
[0019] Figure 1 This is a structural schematic diagram of the door assembly (exhaust state) according to an embodiment of the present utility model;
[0020] Figure 2 for Figure 1 A schematic diagram of the back structure;
[0021] Figure 3 for Figure 2 Partial exploded view of the hidden back panel;
[0022] Figure 4 This is a cross-sectional view of the door assembly according to an embodiment of the present utility model;
[0023] Figure 5 This is a structural schematic diagram of the door assembly in an embodiment of the present invention (non-exhaust state). Detailed Implementation
[0024] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.
[0025] like Figures 1-5 As shown, the door assembly for the cleaning machine in this embodiment includes a door body 1 and a door handle 2 provided on the door body 1. The door handle 2 includes a front arm 21 and a rear arm 22 arranged side by side and extending laterally. The front arm 21 and the rear arm 22 are connected as one piece. The door body 1 has a horizontally extending and through mounting opening 11. The door handle 2 is movably constrained at the mounting opening 11. The rear arm 22 has a through vent 221. The front arm 21 can cover the mounting opening 11 when the door handle 2 moves backward, and the rear arm 22 can expose the vent 221 when the door handle 2 moves forward.
[0026] With the above structure, when venting is required, the door handle 2 is moved forward until the rear arm 22 covers the mounting opening 11. The rear arm 22 not only covers the mounting opening 11 but also exposes the vent 221. The hot and humid steam in the washing chamber is discharged through the vent 221, which is positioned high, without damaging the cabinet. After venting is completed, the door handle 2 is moved backward until the front arm 21 covers the mounting opening 11, thereby hiding the door handle 2, maintaining the integrity of the front of the door 1 and keeping it aesthetically pleasing.
[0027] In this embodiment, in the venting state, the forearm 21 is positioned in front of the door body 1, and the rear arm 22 is flush with the surface of the door body 1, exposing the vent hole 221. In the non-venting state, the forearm 21 covers the mounting opening 11 and is flush with the surface of the door body 1, while the rear arm 22 and its vent hole 221 are both located inside the door body 1. With this structure, whether in the venting state (i.e., when the door handle 2 extends out of the mounting opening 11) or the non-venting state (i.e., when the door handle 2 is hidden), the integrity of the front of the door body 1 can be maintained, improving the user experience.
[0028] The door body 1 is equipped with a drive component 3 that can drive the door handle 2 to move back and forth. This drive component 3 is connected to the rear arm 22 of the door handle 2. This structure facilitates the automatic driving of the door handle 2 to move back and forth. An operation key can also be provided on the outer surface of the forearm 21. This operation key is electrically connected to the drive component 3. By pressing the operation key, the user can more precisely control whether the door handle 2 extends or retracts.
[0029] The driving component 3 is a push rod motor, whose push rod 31 extends forward and backward and connects to the rear arm 22 of the door handle 2. This utility model realizes the driving of the door handle 2 through a push rod motor, which has a simple structure and reliable operation.
[0030] The forearm 21 and the corresponding ends of the rear arm 22 are connected by a connecting arm 23. The connecting arm 23 is hollow inside, forming a slot 231 with an open rear end. The front end of the push rod 31 passes through the open end and is inserted into the slot 231 of the connecting arm 23. This structure makes the assembly between the drive component 3 and the door handle 2 more compact and stable, thereby improving the reliability of the door handle 2's forward and backward movement.
[0031] The door body 1 is also equipped with an exhaust assembly 4, which includes an exhaust pipe 41 and a fan 42. The exhaust pipe 41 has an air inlet 411 that communicates with the washing chamber of the cleaning machine and an air outlet 412 that communicates with the exhaust hole 221 of the rear arm 22. The fan 42 is located in the exhaust pipe 41 and is used to provide power for exhaust. The above structure is adopted to improve exhaust efficiency.
[0032] The exhaust assembly 4 is located below the mounting port 11, with the air inlet 411 of the exhaust pipe 41 at the top and the air outlet 412 at the bottom. A duct box 5 is provided on the back of the rear arm 22 to enclose the exhaust port 221. The air outlet 412 of the exhaust pipe 41 is connected to the duct box 5 via a duct pipe 6. This structure improves the sealing of the connection at the exhaust port 221 of the rear arm 22, preventing steam leakage.
[0033] The rear arm 22 has at least two sets of exhaust holes 221 arranged laterally at intervals. The air guide pipe 6 includes a first part for guiding airflow and a transverse pipe arranged laterally behind the rear arm 22. The transverse pipe is connected to the air guide box 5 corresponding to each set of exhaust holes 221. This structure is beneficial to improving exhaust efficiency.
[0034] The cleaning machine of this embodiment includes a housing with an opening and a door 1, which is used to open or close the opening of the housing.
[0035] In this embodiment, the door handle 2 is provided with a front arm 21 and a rear arm 22 arranged side by side. When venting is required, the door handle 2 is moved forward until the rear arm 22 covers the mounting opening 11. The rear arm 22 not only covers the mounting opening 11 but also exposes the vent 221. The hot and humid steam in the washing chamber is discharged through the vent 221, which is positioned high, without damaging the cabinet. After venting is completed, the door handle 2 is moved backward until the front arm 21 covers the mounting opening 11, thereby hiding the door handle 2, maintaining the integrity of the front of the door 1 and keeping it aesthetically pleasing.
[0036] In the specification and claims of this utility model, terms indicating direction, such as "front," "rear," "upper," "lower," "left," "right," "side," "top," and "bottom," are used to describe various exemplary structural parts and elements of this utility model. However, the use of these terms is merely for the purpose of explanation and is based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in this utility model can be arranged in different orientations, these terms indicating direction are for illustrative purposes only and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity.
Claims
1. A door assembly for a cleaning machine, comprising a door body (1) and a door handle (2) disposed on the door body (1), characterized in that: The door handle (2) includes a front arm (21) and a rear arm (22) arranged side by side and extending laterally. The front arm (21) and the rear arm (22) are connected as one unit. The door body (1) has a horizontally extending mounting opening (11). The door handle (2) is constrained at the mounting opening (11) and can move back and forth. The rear arm (22) has a through exhaust hole (221). The front arm (21) can cover the mounting opening (11) when the door handle (2) moves backward. The rear arm (22) can expose the exhaust hole (221) when the door handle (2) moves forward.
2. The door assembly for a cleaning machine according to claim 1, characterized in that: In the exhaust state, the forearm (21) is located in front of the door body (1), and the rear arm (22) is flush with the surface of the door body (1) and exposes the exhaust hole (221); in the non-exhaust state, the forearm (21) covers the mounting opening (11) and is flush with the surface of the door body (1), and the rear arm (22) and its exhaust hole (221) are both located inside the door body (1).
3. The door assembly for a cleaning machine according to claim 1, characterized in that: The door body (1) is provided with a drive component (3) that can drive the door handle (2) to move back and forth. The drive component (3) is connected to the rear arm (22) of the door handle (2).
4. The door assembly for a cleaning machine according to claim 3, characterized in that: The drive component (3) is a push rod motor, the push rod of which extends forward and backward and is connected to the rear arm (22) of the door handle (2).
5. The door assembly for a cleaning machine according to claim 4, characterized in that: The forearm (21) and the corresponding ends of the rear arm (22) are connected by a connecting arm (23), which is hollow inside to form a slot (231) with an open rear end. The front end of the push rod passes through the open end and is inserted into the slot (231) of the connecting arm (23).
6. The door assembly for a cleaning machine according to any one of claims 1 to 5, characterized in that: The door body (1) is also provided with an exhaust assembly (4), which includes an exhaust pipe (41) and a fan (42). The exhaust pipe (41) has an air inlet (411) connected to the washing chamber of the cleaning machine and an air outlet (412) connected to the exhaust hole (221) of the rear arm (22). The fan (42) is located in the exhaust pipe (41) and is used to provide power for exhaust.
7. The door assembly for a cleaning machine according to claim 6, characterized in that: The exhaust assembly (4) is located below the mounting port (11). The air inlet (411) of the exhaust pipe (41) is on top and the air outlet (412) is on the bottom. The back of the rear arm (22) is provided with an air guide box (5) that can surround the exhaust hole (221). The air outlet (412) of the exhaust pipe (41) is connected to the air guide box (5) through the air guide pipe (6).
8. The door assembly for a cleaning machine according to claim 7, characterized in that: The rear arm (22) is provided with at least two sets of exhaust holes (221) arranged laterally at intervals. The air guide pipe (6) includes a first part for guiding the airflow direction and a horizontal pipe arranged laterally behind the rear arm (22). The horizontal pipe is connected to the air guide box (5) corresponding to each set of exhaust holes (221).
9. A cleaning machine, comprising a housing with an opening, characterized in that: It also includes a door (1) according to any one of claims 1 to 8, the door (1) being used to open or close the opening of the box.