Door body for a washing machine and washing machine
By installing an adaptive air pressure adjustment component in the door of the cleaning machine, the problem of insufficient sealing during high-temperature cleaning is solved, and adaptive air pressure adjustment of the installation cavity is realized, ensuring the stability and dryness of the switching components.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO FOTILE KITCHEN WARE CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-07-10
Smart Images
Figure CN224474403U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dishwasher technology, specifically to a door for a cleaning machine and the cleaning machine itself. Background Technology
[0002] Sink-type dishwashers typically feature a top-opening door, with the switch assembly usually mounted on the door for easy user operation. For example, Chinese utility model patent ZL 202022830835.3, "A Door Installation Structure for a Sink-Type Dishwasher," discloses a sink-type dishwasher with a door structure. These existing dishwashers typically fasten the adhesive bracket of the switch assembly to the door frame with screws. The door glass is bonded to the adhesive bracket and the door frame, while the switch assembly is located in the interlayer between the door frame and the door glass. A damping pivot is mounted at the rear end of the door frame, allowing the door to rotate and open / close within the recessed platform of the sink panel around the pivot center.
[0003] The applicant's earlier application, 202421525104.X, entitled "A Cleaning Machine," discloses a structure with an upward-opening door. To avoid accidental activation of the switch button, the switch assembly is positioned at the rear of the door, and a cavity for installing the switch assembly is provided near the rear edge of the door. This cavity is sealed by a top cover. However, in practical applications, it has been found that because the tableware undergoes at least one hot water rinsing process during cleaning, the temperature inside the door intermittently rises and falls. This places high demands on the sealing of the cavity, making it easy for moisture-laden air to intrude into the cavity and adversely affect the switch assembly. Utility Model Content
[0004] The first technical problem to be solved by this utility model is to provide a door for a cleaning machine that can adaptively adjust the air pressure in the installation cavity of the switch assembly to maintain sealing and prevent the intrusion of external moisture, in light of the current state of the technology.
[0005] The second technical problem to be solved by this utility model is to provide a cleaning machine that applies the above-mentioned door body, in view of the current situation of the prior art.
[0006] The technical solution adopted by this utility model to solve at least one of the above-mentioned technical problems is as follows:
[0007] A door for a cleaning machine includes a door body and a switch assembly disposed in the door body. The door body forms a hollow cavity, and a mounting cavity independent of the cavity and used to install the switch assembly is provided in the cavity. An adjustment assembly is provided on the side of the mounting cavity, which can move laterally back and forth with changes in air pressure. The adjustment assembly moves outward to increase the volume of the mounting cavity and moves inward to restore the volume of the mounting cavity.
[0008] With the above structure, during the washing process, if the temperature inside the door is too high, the air pressure in the mounting cavity will increase, thereby squeezing some of the air in the mounting cavity outward through the regulating component, thus releasing the air pressure in the mounting cavity; when the temperature inside the door returns to normal, the air pressure in the mounting cavity decreases, the regulating component resets, and the air pressure in the mounting cavity returns to normal; this process achieves self-adaptation of the air pressure in the mounting cavity through the reciprocating movement of the regulating component.
[0009] Preferably, a transition cavity is formed between the end of the mounting cavity and the end of the cavity body, and the mounting cavity communicates with the transition cavity. A buffer cavity communicating with the transition cavity is provided at the side edge of the door body, and the adjustment component is located at the outlet of the buffer cavity. The transition cavity and buffer cavity facilitate direct outlet or return of gas in the mounting cavity, enabling rapid pressure regulation of the gas in the mounting cavity; the buffer cavity facilitates movable coordination with the adjustment component.
[0010] Preferably, the adjusting assembly includes a first slider, a second slider, and an elastic element. The first slider is located at the outlet end of the buffer cavity and covers the outlet end. The second slider is laterally movable within the buffer cavity. The elastic element is located between the first and second sliders, ensuring that the second slider always tends to move inward. With this structure, the first slider remains stationary, while the second slider, when subjected to gas pressure from the mounting cavity, overcomes the force of the elastic element and moves inward, thereby achieving a buffered release of gas pressure in the mounting cavity. When not subjected to gas pressure from the mounting cavity, the second slider resets into the buffer cavity under the action of the elastic element, further returning some gas to the mounting cavity, thus maintaining the gas pressure balance within the mounting cavity.
[0011] Preferably, the outer diameter of the second slider is smaller than the inner diameter of the buffer cavity, and a sealing ring is provided between the outer surface of the second slider and the inner surface of the buffer cavity to prevent gas from passing through. This structure facilitates guiding the second slider through the inner wall of the buffer cavity and prevents gas leakage from the mounting cavity.
[0012] Preferably, the upper and / or lower surface of the first slider is provided with an air passage for gas to enter and exit the area between the first slider and the second slider. If the first slider and the outer port of the buffer cavity are well sealed, the gas between the first slider and the second slider will be difficult to release, thus affecting the reciprocating movement of the second slider. Providing the aforementioned air passage can effectively overcome this problem.
[0013] To facilitate assembly, the inner end face of the first slider is provided with a first circumferentially oriented limiting groove, and correspondingly, the outer end face of the second slider is provided with a second circumferentially oriented limiting groove. The elastic element is a spring whose outer end is inserted into the first limiting groove and whose inner end is inserted into the second limiting groove. This structure helps to improve the installation stability of the spring.
[0014] Preferably, the buffer cavity is formed at the rear edge of the door and extends laterally along the rear edge of the door, while the transition cavity is arranged perpendicular to the buffer cavity. A cover plate is provided at the top of the door to seal the cavity and the mounting cavity, and a gas guide channel is provided at the top edge of the mounting cavity to allow gas communication between the mounting cavity and the transition cavity. This structure makes fuller use of the mounting space at the rear edge of the door, and the buffer cavity is hidden at the rear edge of the door, preventing damage from bumps or other impacts.
[0015] A cleaning machine includes a water tank and a door, the rear edge of which is rotatably connected to the rear edge of the water tank.
[0016] Compared with the prior art, the advantages of this utility model are as follows: This utility model is equipped with an adjustment component in the door body that is linked to the air pressure in the installation cavity. During the washing process, if the temperature in the door body is too high, the air pressure in the installation cavity will increase, thereby squeezing some of the air in the installation cavity outward through the adjustment component, thus releasing the air pressure in the installation cavity; when the temperature in the door body returns to normal, the air pressure in the installation cavity decreases, the adjustment component resets, and the air pressure in the installation cavity returns to normal; this process achieves self-adaptation of the air pressure in the installation cavity through the reciprocating movement of the adjustment component, thereby always maintaining the sealing of the installation cavity, preventing the installation cavity from exchanging air with the outside and bringing moisture into the installation cavity, and ensuring the dryness and stability of the environment in the installation cavity. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the door structure according to an embodiment of the present utility model;
[0018] Figure 2 for Figure 1 Exploded view;
[0019] Figure 3 This is a schematic diagram of the door structure (rear edge facing forward) according to an embodiment of the present utility model;
[0020] Figure 4 for Figure 3 A sectional view;
[0021] Figure 5 for Figure 4 A magnified view of a portion of the image. Detailed Implementation
[0022] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.
[0023] like Figures 1-5As shown, the door of the cleaning machine in this embodiment includes a door body 1 and a switch assembly disposed in the door body 1. The door body 1 forms a hollow cavity 11. An installation cavity 2, which is independent of the cavity 11 and is used to install the switch assembly, is provided in the cavity 11. An adjustment assembly 3, which can move laterally back and forth with changes in air pressure, is provided on the side of the installation cavity 2. The adjustment assembly 3 moves outward to increase the volume of the installation cavity 2 and moves inward to restore the volume of the installation cavity 2.
[0024] With the above structure, during the washing process, if the temperature in the door body 1 is too high, the air pressure in the mounting cavity 2 will increase, thereby squeezing some of the air in the mounting cavity 2 outward through the regulating component 3, thus releasing the air pressure in the mounting cavity 2; when the temperature in the door body 1 returns to normal, the air pressure in the mounting cavity 2 decreases, the regulating component 3 resets, and the air pressure in the mounting cavity 2 returns to normal; this process achieves self-adaptation of the air pressure in the mounting cavity 2 through the reciprocating movement of the regulating component 3.
[0025] A transition cavity 111 is formed between the end of the mounting cavity 2 and the end of the cavity 11. The mounting cavity 2 is connected to the transition cavity 111. A buffer cavity 12, which is connected to the transition cavity 111, is provided at the side edge of the door body 1. The adjustment component 3 is located at the outlet of the buffer cavity 12. The transition cavity 111 and the buffer cavity 12 are provided so that the gas in the mounting cavity 2 can be directly discharged or returned, realizing rapid pressure regulation of the gas in the mounting cavity 2; the buffer cavity 12 facilitates the movable cooperation with the adjustment component 3.
[0026] The adjusting assembly 3 includes a first slider 31, a second slider 32, and an elastic element 33. The first slider 31 is located at and covers the outlet end 121 of the buffer cavity 12. The second slider 32 is laterally movable within the buffer cavity 12. The elastic element 33 is located between the first slider 31 and the second slider 32, ensuring that the second slider 32 always tends to move inward. With this structure, the first slider 31 remains stationary, while the second slider 32 moves against the force of the elastic element 33 when subjected to gas pressure from the mounting cavity 2, thereby achieving a buffered release of gas pressure in the mounting cavity 2. When not subjected to gas pressure from the mounting cavity 2, the second slider 32 resets into the buffer cavity 12 under the action of the elastic element 33, further returning some gas to the mounting cavity 2, thus maintaining the gas pressure balance within the mounting cavity 2.
[0027] The outer diameter of the second slider 32 is smaller than the inner diameter of the buffer cavity 12, and a sealing ring 4 is provided between the outer surface of the second slider 32 and the inner surface of the buffer cavity 12 to prevent gas from passing through. This structure facilitates the guidance of the second slider 32 through the inner wall of the buffer cavity 12 and prevents gas leakage in the mounting cavity 2.
[0028] The upper and lower surfaces of the first slider 31 are provided with air passages 311 for gas to enter and exit the area between the first slider 31 and the second slider 32. If the first slider 31 and the outer port of the buffer chamber 12 are well sealed, the gas between the first slider 31 and the second slider 32 will be difficult to release, thus affecting the reciprocating movement of the second slider 32. The air passages 311 provided above can effectively overcome this problem.
[0029] To facilitate assembly, the inner end face of the first slider 31 is provided with a first limiting groove 312 opened in the circumferential direction, and correspondingly, the outer end face of the second slider 32 is provided with a second limiting groove 321 opened in the circumferential direction. The elastic element 33 is a spring whose outer end is inserted in the first limiting groove 312 and whose inner end is inserted in the second limiting groove 321. This structure helps to improve the installation stability of the spring.
[0030] A buffer cavity 12 is formed at the rear edge of the door body 1 and extends laterally along the rear edge of the door body 1. A transition cavity 111 is arranged perpendicular to the buffer cavity 12. A cover plate 5 is provided at the top of the door body 1 to close the cavity 11 and the mounting cavity 2. A gas guide channel 21 is provided at the top edge of the mounting cavity 2 to allow gas communication between the mounting cavity 2 and the transition cavity 111. With the above structure, the mounting space at the rear edge of the door body 1 is utilized more fully, and the buffer cavity 12 is hidden at the rear edge of the door body 1 to avoid damage from bumps or other impacts.
[0031] A cleaning machine includes a water tank and the aforementioned door body, the rear edge of which is rotatably connected to the rear edge of the water tank.
[0032] In this embodiment, an adjustment component 3 is installed in the door body that is linked to the air pressure in the mounting cavity 2. During the washing process, if the temperature in the door body is too high, the air pressure in the mounting cavity 2 will increase, thereby squeezing some of the air in the mounting cavity 2 outward through the adjustment component 3, thus releasing the air pressure in the mounting cavity 2. When the temperature in the door body returns to normal, the air pressure in the mounting cavity 2 decreases, the adjustment component 3 resets, and the air pressure in the mounting cavity 2 returns to normal. This process achieves self-adaptation of the air pressure in the mounting cavity 2 through the reciprocating movement of the adjustment component 3, thereby always maintaining the airtightness of the mounting cavity 2, preventing the mounting cavity 2 from exchanging air with the outside and bringing moisture into the mounting cavity 2, and ensuring the dryness and stability of the environment in the mounting cavity 2.
[0033] 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 for a cleaning machine, comprising a door body (1) and a switch assembly disposed in the door body (1), characterized in that: The door body (1) has a hollow cavity (11). The cavity (11) has an independent mounting cavity (2) for installing the switch assembly. The side of the mounting cavity (2) is provided with an adjustment component (3) that can move laterally back and forth with changes in air pressure. The adjustment component (3) moves outward to increase the volume of the mounting cavity (2) and moves inward to restore the volume of the mounting cavity (2).
2. The door body for a cleaning machine according to claim 1, characterized in that: A transition cavity (111) is formed between the end of the mounting cavity (2) and the end of the cavity (11). The mounting cavity (2) is connected to the transition cavity (111). A buffer cavity (12) connected to the transition cavity (111) is provided at the side edge of the door body (1). The adjustment component (3) is located at the outlet of the buffer cavity (12).
3. The door body for a cleaning machine according to claim 2, characterized in that: The adjustment component (3) includes a first slider (31), a second slider (32), and an elastic element (33). The first slider (31) is located at the outlet end of the buffer cavity (12) and covers the outlet end. The second slider (32) is located in the buffer cavity (12) and can move laterally. The elastic element (33) is located between the first slider (31) and the second slider (32) and makes the second slider (32) always maintain an inward moving tendency.
4. The door body for a cleaning machine according to claim 3, characterized in that: The outer diameter of the second slider (32) is smaller than the inner diameter of the buffer cavity (12), and a sealing ring (4) is provided between the outer surface of the second slider (32) and the inner surface of the buffer cavity (12) to prevent gas from passing through.
5. The door body for a cleaning machine according to claim 3, characterized in that: The upper and / or lower surfaces of the first slider (31) are provided with air passages (311) for gas to enter and exit the area between the first slider (31) and the second slider (32).
6. The door body for a cleaning machine according to claim 3, characterized in that: The inner end face of the first slider (31) is provided with a first limiting groove (312) opened in the circumferential direction. Correspondingly, the outer end face of the second slider (32) is provided with a second limiting groove (321) opened in the circumferential direction. The elastic element (33) is a spring whose outer end is inserted in the first limiting groove (312) and whose inner end is inserted in the second limiting groove (321).
7. The door body for a cleaning machine according to any one of claims 2 to 6, characterized in that: The buffer cavity (12) is formed at the rear edge of the door body (1) and extends laterally along the rear edge of the door body (1), and the transition cavity (111) is arranged perpendicular to the buffer cavity (12).
8. The door body for a cleaning machine according to any one of claims 2 to 6, characterized in that: The top of the door body (1) is provided with a cover plate that can seal the cavity (11) and the mounting cavity (2). The top edge of the mounting cavity (2) is provided with a gas guide channel for gas communication between the mounting cavity (2) and the transition cavity (111).
9. A cleaning machine, comprising a water tank, characterized in that: It also includes a door body according to any one of claims 1 to 8, wherein the rear edge of the door body (1) is rotatably connected to the rear edge of the water tank.