Door assembly device and cooking device

Abstract

The utility model relates to the technical field of cooking equipment, and provides a door assembly device and a cooking device.The door assembly device comprises a hinge device and a damping device, the hinge device is connected with a door body assembly through a hinge connecting rod, a door hinge spring provides support when a door body is opened, and the damping device is composed of a damping sleeve and a damping sliding rod; buffering can be provided when the door body is closed, and impact force is reduced. According to the door assembly device, stable opening and closing of the door body assembly are achieved through the combination of the hinge device and the damping device, effective buffering and time delay of the door body in the closing process are achieved, impact noise generated when the door body is rapidly closed is greatly reduced, comfort of a user in the using process is improved, and the door assembly device is simple in structure, convenient to use, economical and practical. The household electrical appliance is simple in structure and easy to install and maintain, the overall performance and quality of the product are remarkably improved on the premise of not increasing too much cost, and the high requirements of modern consumers for household electrical appliance products are met.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of cooking equipment, especially to a door assembly device and a cooking device. BACKGROUND

[0002] In the field of modern kitchen appliances, microwave ovens are widely used in households and catering places due to their convenient and efficient cooking methods. With the continuous improvement of consumers' experience and quality requirements for microwave ovens, the design of the door assembly of microwave ovens has gradually become the focus of manufacturers. In particular, pull-down door microwave ovens are favored due to their easy operation and high space utilization. However, traditional pull-down door microwave ovens have various technical challenges in the door closing mechanism, which affect user experience and product durability.

[0003] The traditional pull-down door microwave oven door closing mechanism usually relies on a simple mechanical hinge structure, which lacks an effective buffer mechanism. When the user closes the door with a large force, the door will quickly hit the front panel of the microwave oven cavity, producing a loud noise that affects the user's experience. At the same time, frequent impacts can cause the cavity front panel to deform, sag, or surface coating to peel off, seriously affecting the appearance and durability of the product. In addition, the coating on the surface of the door may also be worn out due to the impact, reducing its protective performance, and even affecting the sealing of the microwave oven, thereby posing a potential threat to the cooking effect and safety.

[0004] To solve the problem of impact when closing the door, the industry has made a series of attempts. Some manufacturers increase the gap between the door and the cavity front panel to reduce the impact force, but this approach often sacrifices the sealing performance of the microwave oven, leading to heat leakage and affecting cooking efficiency. Some designs attempt to install rubber pads or elastic materials on the door to absorb impact energy, which can reduce the impact sound to some extent, but these materials are prone to aging and deformation over time, losing their original buffering effect and possibly affecting their performance due to dust and oil pollution.

[0005] In addition, some designs attempt to achieve slow door closing through complex mechanical structures, but these solutions often increase manufacturing costs and have complex structures, making maintenance difficult and not conducive to the popularization and promotion of products. Therefore, how to effectively solve the problem of strong impact when closing the door without increasing excessive costs and sacrificing other performance of the microwave oven has become a technical problem that the industry needs to solve.

[0006] In the design of door hinges, traditional door hinges mainly bear the function of connecting the door body and the cavity, lack of buffering and force control mechanism. When the door body is closed at a faster speed, the hinge cannot provide effective resistance to slow down the speed of the door body, causing the door body to directly impact the front plate. In addition, the stability and reliability of the traditional hinge will gradually decrease during long-term use due to wear and fatigue, further aggravating the door body impact problem.

[0007] In summary, the existing drop-down door type microwave oven has many deficiencies in the door closing mechanism, which not only affects the user's experience, but also may lead to a decrease in product quality. Therefore, in-depth research and improvement for this technical problem have become the task of microwave oven manufacturers to be solved in order to improve the overall performance of the product and user satisfaction. Practical new type content

[0008] Therefore, the utility model provides a door assembly device and a cooking device, aiming to solve the technical problems of loud noise, strong impact force and serious wear during the opening and closing of the door assembly of the cooking device. In the traditional door body design, the door body often produces a loud impact sound when closing, which not only affects the user experience, but also may cause rapid wear of the door body and its connecting parts, shortening their service life.

[0009] To achieve the above purpose, the technical scheme of the utility model is as follows:

[0010] A door assembly device, comprising:

[0011] A hinge device comprising a hinge connecting rod, one end of the hinge connecting rod being hinged to a door body assembly through a door body shaft, a door hinge spring being provided on the hinge connecting rod, the door hinge spring being in tension when the door body assembly is rotated open relative to the front plate;

[0012] A damping device comprising a damping sleeve and a damping slide rod, the damping slide rod being hinged to the hinge connecting rod, the damping sleeve being fixed relative to the front plate, the damping slide rod being able to compress or stretch when damping when the damping sleeve is compressed or stretched, for buffering the closing of the door body assembly when the door body assembly is rotated closed relative to the front plate under the action of the door hinge spring.

[0013] Further, the hinge device further comprises a roller, the roller being used to support the hinge connecting rod and being able to rotate when the hinge connecting rod slides.

[0014] Further, a through slot is arranged on the front plate, one end of the hinge connecting rod passes through the through slot and is hinged with the door body assembly through a door body rotating shaft, a roller fixing seat assembly is arranged on a bottom plate assembly connected to the lower end of the front plate and is used for supporting the hinge connecting rod, and the door body assembly drives the hinge connecting rod to slide forward or backward above the roller along the through slot when the door body assembly rotates to open or close relative to the front plate.

[0015] Further, a first hook slot is arranged on the hinge connecting rod, and a second hook slot is arranged on the bottom plate assembly, and two ends of the door hinge spring are respectively hooked in the first hook slot and the second hook slot.

[0016] Further, a limiting part is arranged on the hinge connecting rod, and the limiting part can be limited by the front plate when the limiting part slides outward integrally with the hinge connecting rod.

[0017] Further, the hinge connecting rod is designed in a whole step shape of bending, the upper connecting edge of the hinge connecting rod is hinged and connected with the damping device, the lower connecting edge of the hinge connecting rod passes through the through slot and is hingedly connected with the door body assembly, and the bending edge arranged between the upper connecting edge and the lower connecting edge of the hinge connecting rod forms a limiting point of outward movement of the hinge device.

[0018] Further, the damping device is arranged at the rear end of the hinge connecting rod away from the front plate, and the damping device is arranged in an inclined downward shape from front to back.

[0019] Further, a fixing support is arranged at the rear end of the bottom plate assembly away from the front plate, one end of the damping sleeve is connected with the fixing support, and the front end of the damping sliding rod away from the fixing support is connected with the hinge connecting rod.

[0020] Further, the damping sleeve and the fixing support are hingedly connected through a second connecting piece, and the damping sliding rod and the hinge connecting rod are hingedly connected through a first connecting piece.

[0021] Compared with the prior art, the door assembly device has the following advantages:

[0022] (1) The door assembly device has the following advantages: the door body assembly is stably opened and closed through the combination of the hinge device and the damping device, effective buffering and time delay of the door body in the closing process are realized, impact noise generated when the door body is quickly closed is greatly reduced, the comfort of a user in the use process is improved, the structure is simple, easy to install and maintain, and the overall performance and quality of the product are significantly improved without increasing too much cost, and high requirements of modern consumers on home appliance products are met.

[0023] (2) The door assembly device has reasonable design, cooperation of the door hinge spring and the damping device, automatic adjustment of the door body when the door body is closed, close contact of the door body with the front plate, simple structure, easy installation and maintenance, reduced production and use cost, and provides a more quiet and comfortable cooking environment for consumers.

[0024] Another purpose of the utility model is to provide a cooking device, which is provided with the door assembly device.

[0025] The cooking device has the same advantages as the door assembly device relative to the prior art, and thus will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0026] The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the application, and are incorporated herein for explanation by reference. These drawings, which are not to be construed as limiting the application, illustrate certain embodiments of the present application and, together with the specification, serve to explain them.

[0027] Figure 1 A structure schematic view of the door body assembly and the front plate in an open state in the door assembly device of the utility model embodiment;

[0028] Figure 2 A structure schematic view of the door body assembly and the front plate in a closed state in the door assembly device of the utility model embodiment;

[0029] Figure 3 An explosion structure schematic view of the damping device and the hinge device and the fixed support assembly in the door assembly device of the utility model embodiment;

[0030] Figure 4 A partial structure schematic view of the fixed support provided on the bottom plate assembly in the door assembly device of the utility model embodiment;

[0031] BRIEF DESCRIPTION OF DRAWINGS

[0032] 1 - door body assembly; 2 - front plate; 3 - hinge device; 4 - damping device; 5 - bottom plate assembly; 6 - hinge connecting rod; 601 - upper connecting edge; 602 - bent edge; 603 - lower connecting edge; 7 - roller; 8 - door body rotating shaft; 9 - damping sleeve; 10 - damping sliding rod; 11 - first connecting piece; 12 - second connecting piece; 13 - door hinge spring; 14 - roller fixed seat assembly; 15 - through groove; 16 - first hook groove; 17 - screw rod; 18 - anti-skid nut; 19 - fixed support; 20 - limiting portion; 21 - second hook groove. DETAILED DESCRIPTION

[0033] In order to make the technical means and achieve the purpose and effect of the utility model easy to understand, the embodiments of the utility model are described in detail below in combination with specific drawings.

[0034] It should be noted that all the terms indicating directionality and positionality in the utility model, such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", "top", "low", "lateral", "longitudinal", "center", etc., are only used to explain the relative positional relationship, connection condition, etc. between components in a certain state (as shown in the drawings), and are only for the convenience of describing the utility model, and do not require the utility model to be constructed and operated in a particular orientation, so it cannot be understood as a limitation on the utility model. In addition, the description of "first", "second", etc. in the utility model is only for the purpose of description, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features.

[0035] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "connection" and "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication inside two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0036] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0037] The door assembly device of the prior art cooking device usually only relies on a hinge to realize the opening and closing of the door body, and lacks effective buffering and delay closing mechanism. When the door body is quickly closed, a large impact noise is easily generated, and the closing speed of the door body cannot be controlled according to actual needs, reducing the user experience.

[0038] As Figures 1-4 shown, the application discloses a door assembly device, which comprises:

[0039] The hinge device 3 comprises a hinge connecting rod 6, one end of which is hinged to the door body assembly 1 through a door body rotating shaft 8, and a door hinge spring 13 arranged on the hinge connecting rod 6, which is in tension when the door body assembly 1 is opened relative to the front plate 2.

[0040] The damping device 4 comprises a damping sleeve 9 and a damping sliding rod 10, the damping sliding rod 10 being hinged to the hinge connecting rod 6, and the damping sleeve 9 being fixed relative to the front plate 2, the damping sliding rod 10 being able to be compressed or stretched relative to the damping sleeve 9 to be damped, for delaying and damping the closing of the door body assembly 1 relative to the front plate 2 when the door body assembly 1 is closed under the action of the door hinge spring 13.

[0041] The door assembly device disclosed in the present application, when the door body assembly 1 needs to be opened, the user exerts force to rotate the door body assembly 1 relative to the front plate 2, at this time, the hinge connecting rod 6 in the hinge device 3 moves cooperatively with the door body assembly 1 through the door body rotating shaft 8, and the door hinge spring 13 on the hinge connecting rod 6 is stretched and stores energy; when the door body assembly 1 needs to be closed, the door hinge spring 13 releases the stored energy to drive the door body assembly 1 to rotate and close to the front plate 2, so that the door body assembly 1 is tightly attached to the front plate 2, and in this process, the damping device 4 starts to work, the damping sliding rod 10 is hinged to the hinge connecting rod 6 and compresses or stretches relative to the damping sleeve 9 with the movement of the door body assembly 1, and through the damping buffering action between the damping sleeve 9 and the damping sliding rod 10, the closing speed of the door body assembly 1 is effectively slowed down, and the delayed and damped closing of the door body is realized. Through this design, the door body will not produce a violent impact when closing, reducing noise and improving user experience, while also avoiding wear and tear of the door body and its connecting parts during frequent opening and closing, thereby prolonging the service life of the product.

[0042] The door assembly device disclosed in the present application realizes the smooth opening and closing of the door body assembly 1 by combining the hinge device 3 and the damping device 4, realizes the effective damping and delay of the door body during the closing process, greatly reduces the impact noise generated when the door body is quickly closed, improves the comfort of the user during use, has a simple structure, is easy to install and maintain, and significantly improves the overall performance and quality of the product without increasing too much cost, meeting the high requirements of modern consumers for home appliances.

[0043] As a preferred example of the present application, the hinge device 3 further comprises a roller 7 for supporting the hinge connecting rod 6 and capable of rotating when the hinge connecting rod 6 slides. In the example of the present application, a through slot 15 is provided on the front plate 2, one end of the hinge connecting rod 6 passes through the through slot 15 and is hingedly connected with the door body assembly 1 through a door body rotating shaft 8, and a roller fixing seat assembly 14 is provided on the bottom plate assembly 5 connected to the lower end of the front plate 2 for supporting the hinged roller 7. When the door body assembly 1 rotates to open or close relative to the front plate 2, the hinge connecting rod 6 slides forward or backward along the through slot 15 and the roller 7. In the present application, one end of the hinge connecting rod 6 passes through the pre-set through slot 15 on the front plate 2 and is hingedly connected with the door body assembly 1 through the door body rotating shaft 8, and the roller fixing seat assembly 14 is provided on the bottom plate assembly 5 at the lower end of the front plate 2 to stably support and hinge the roller 7. When the door body assembly 1 opens or closes relative to the front plate 2, the hinge connecting rod 6 will act accordingly and smoothly slide forward or backward along the track of the through slot 15 and the support surface of the roller 7. In this process, the roller 7 not only bears the weight of the hinge connecting rod 6 and the door body assembly 1, but also effectively reduces the frictional resistance in the sliding process through its own rotating characteristics, making the opening and closing of the door body more smooth and easy.

[0044] The hinge device 3 of the present application improves the flexibility and stability of the hinge connecting rod 6 in the sliding process by introducing the roller 7 design, effectively avoids the jamming or wear problems caused by excessive friction in traditional hinges, enables the door body to maintain a more stable motion state during opening and closing, reduces noise generation, and improves user experience.

[0045] As a preferred example of the present application, a limiting portion 20 is provided on the hinge connecting rod 6, which can be limited by the front plate 2 when sliding outward integrally with the hinge connecting rod 6. In the example of the present application, the hinge connecting rod 6 is designed as a whole with a bent step shape, the upper connecting edge 601 of the hinge connecting rod 6 is hingedly connected with the damping device 4, the lower connecting edge 603 of the hinge connecting rod 6 passes through the through slot 15 and is hingedly connected with the door body assembly 1, and the bent edge 602 provided between the upper connecting edge 601 and the lower connecting edge 603 of the hinge connecting rod 6 forms a limiting point for the outward movement of the hinge device 3. When the door body assembly 1 is opened to a certain angle, the limiting portion 20 on the hinge connecting rod 6 contacts the front plate 2, which effectively limits the further opening of the door body assembly 1 and prevents the inconvenience or damage that may be caused by the excessive opening angle of the door.

[0046] The setting effectively prevents the door body from colliding with the surrounding objects due to excessive opening, avoids unnecessary damage, ensures the stable and reliable opening and closing process of the door body, guarantees the normal use of the door body, improves the overall performance and user experience of the product, and provides a safer and more convenient operation mode for the user.

[0047] As a preferred example of the present application, a first hook groove 16 is arranged on the hinge connecting rod 6, and a second hook groove 21 is arranged on the bottom plate assembly 5, and the two ends of the door hinge spring 13 are respectively hooked in the first hook groove 16 and the second hook groove 21.

[0048] As a preferred example of the present application, the damping device 4 is arranged at the rear end of the hinge connecting rod 6 away from the front plate 2, and the damping device 4 is arranged in an inclined downward manner from front to back. This setting further optimizes the setting structure of the damping device 4. When the door body assembly 1 is opened or closed, the hinge connecting rod 6 drives the damping slide rod 10 in the damping device 4 to move together. Since the damping device 4 is in an inclined state, the damping elements such as damping oil, springs or friction plates inside the damping device 4 will generate a resistance force opposite to the direction of movement of the door body under the action of gravity and connecting rod movement. This resistance force increases with the acceleration of the door body movement, thereby effectively slowing down the opening and closing speed of the door body, achieving a stable damping effect.

[0049] Through the above design, the door body assembly 1 can maintain a stable movement trajectory during opening and closing, avoiding impact and noise caused by rapid opening and closing, enhancing its durability, making the operation of the door body assembly 1 more smooth and comfortable, and enabling the door body assembly 1 to achieve a softer and silent closing when closed, improving the user's experience and the overall quality of the product.

[0050] As a preferred example of the present application, a fixed support 19 is arranged on the bottom plate assembly 5 away from the rear end of the front plate 2, one end of the damping sleeve 9 is connected with the fixed support 19, and the front end of the damping slide rod 10 away from the fixed support 19 is connected with the hinge connecting rod 6. The present application sets a fixed support 19 at the rear end of the bottom plate assembly 5, one end of the damping sleeve 9 is firmly installed on the fixed support 19, and the damping slide rod 10 extends out of the damping sleeve 9, and the front end thereof away from the fixed support 19 is connected with the hinge connecting rod 6. When the door body assembly 1 moves, the hinge connecting rod 6 drives the damping slide rod 10 to slide in the damping sleeve 9, thereby generating a damping effect, making the opening and closing action of the door body assembly 1 more stable and smooth.

[0051] The design forms an effective damping system through the cooperation of the fixed support 19, the damping sleeve 9 and the damping slide rod 10, ensures firm installation of the damping sleeve, avoids weakening or failure of the damping effect due to loosening or displacement, provides stable resistance and buffering for the movement of the door body assembly 1, ensures that there is no abrupt or violent movement when the door body is opened or closed, and thus improves the safety and comfort in use.

[0052] As a preferred example of the present application, the damping sleeve 9 and the fixed support 19 are connected through the second connecting piece 12, and the damping slide rod 10 and the hinge connecting rod 6 are connected through the first connecting piece 11. In the example of the present application, the first connecting piece 11 and the second connecting piece 12 both adopt a hinge connecting structure including a screw rod 17 and a non-slip nut 18. By adopting the hinge connecting structure including the screw rod 17 and the non-slip nut 18, the connection between the damping sleeve 9 and the fixed support 19 and the connection between the damping slide rod 10 and the hinge connecting rod 6 are more firm, effectively preventing loosening or damage of the connection due to long-term use or external impact, and ensuring long-term stability and safety of the product.

[0053] The door assembly device disclosed in the present application combines the hinge device 3 and the damping device 4. The hinge device 3 is composed of the hinge connecting rod 6, the door hinge spring 13 and the roller 7, etc. One end of the hinge connecting rod 6 is hingedly connected to the door body assembly 1 through the door body pivot 8, and the door hinge spring 13 bears tension and stores energy when the door body assembly 1 is opened. When the door body assembly is closed, the door hinge spring 13 releases the stored energy and pushes the door body assembly 1 to rotate towards the front plate 2, ensuring that the door body assembly 1 is tightly attached to the front plate 2. In this process, the damping slide rod 10 in the damping device 4 is connected to the hinge connecting rod 6 and can be compressed relative to the damping sleeve 9, producing a damping buffering effect, thereby slowing down the closing speed of the door body assembly and preventing the door body assembly 1 from impacting the front plate 2 of the cavity when closing, and solving the quality problems such as deformation of the front plate 2 of the cavity or wear of the surface coating of the door body assembly 1.

[0054] The present application also discloses a cooking device, on which the door assembly device as described in the above embodiments is arranged.

[0055] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A door assembly device, characterized in that, include: The hinge device (3) includes a hinge link (6), one end of which is hinged to the door assembly (1) via a door pivot (8), and a door hinge spring (13) is provided on the hinge link (6), which is stretched when the door assembly (1) rotates open relative to the front plate (2). The damping device (4) includes a damping sleeve (9) and a damping slide rod (10). The damping slide rod (10) is hinged to the hinge link (6). The damping sleeve (9) is fixed relative to the front plate (2). The damping slide rod (10) can dampen and buffer when compressed or stretched relative to the damping sleeve (9). It is used to buffer the closing of the door assembly (1) when it rotates and closes relative to the front plate (2) under the action of the door hinge spring (13).

2. The door assembly device according to claim 1, characterized in that, The hinge device (3) further includes a roller (7) for supporting the hinge link (6) and capable of rotating as the hinge link (6) slides.

3. The door assembly device according to claim 2, characterized in that, A through groove (15) is provided on the front plate (2). One end of the hinge link (6) passes through the through groove (15) and is hinged to the door assembly (1) via the door pivot (8). A roller fixing seat assembly (14) is provided on the bottom plate assembly (5) connected to the lower end of the front plate (2) to support the hinged roller (7). When the door assembly (1) rotates to open or close relative to the front plate (2), it drives the hinge link (6) to slide forward or backward along the through groove (15) above the roller (7).

4. The door assembly device according to claim 3, characterized in that, A first hook groove (16) is provided on the hinge link (6), and a second hook groove (21) is provided on the base plate assembly (5). The two ends of the door hinge spring (13) are respectively hooked into the first hook groove (16) and the second hook groove (21).

5. The door assembly device according to claim 3 or 4, characterized in that, A limiting part (20) is provided on the hinge link (6), and the limiting part (20) can be limited by the front plate (2) when it slides outward as a whole with the hinge link (6).

6. The door assembly device according to claim 5, characterized in that, The hinge link (6) is designed as a bent step. The upper connecting edge (601) of the hinge link (6) is hinged to the damping device (4). The lower connecting edge (603) of the hinge link (6) passes through the through groove (15) and is hinged to the door assembly (1). The bent edge (602) on the hinge link (6) between the upper connecting edge (601) and the lower connecting edge (603) forms the limiting point for the outward movement of the hinge device (3).

7. The door assembly device according to claim 6, characterized in that, The damping device (4) is located at the rear end of the hinge link (6) away from the front plate (2), and the damping device (4) is arranged in an inclined downward direction from front to back.

8. The door assembly device according to claim 7, characterized in that, A fixed bracket (19) is provided on the base plate assembly (5) away from the rear end of the front plate (2). One end of the damping sleeve (9) is connected to the fixed bracket (19), and the front end of the damping slide rod (10) away from the fixed bracket (19) is connected to the hinge link (6).

9. The door assembly device according to claim 8, characterized in that, The damping sleeve (9) and the fixed bracket (19) are hinged together by the second connector (12), and the damping slide rod (10) and the hinge link (6) are hinged together by the first connector (11).

10. A cooking apparatus, characterized in that, The cooking apparatus is provided with a door assembly device as described in any one of claims 1 to 9.

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