Door body structure and cooking device

Abstract

The application relates to a door body structure and a cooking device. The door body structure comprises a bottom plate, a driving assembly, a linkage assembly and a door body. The driving assembly comprises a driving piece and a rotating shaft. The driving piece is fixed to the bottom plate and can drive the rotating shaft to rotate. The linkage assembly comprises a rotating frame, a lead screw, a limiting rod, a first bevel gear and a second bevel gear. The rotating frame is fixed to the rotating shaft. The lead screw and the limiting rod are arranged in parallel. One end of the limiting rod is fixed to the rotating frame, and the other end is inserted into the door body and is connected to the door body in sliding mode along the length direction of the limiting rod. The lead screw is rotationally connected to the rotating frame and is threadedly connected to the door body. The first bevel gear is fixed relative to the bottom plate. The second bevel gear is fixed to the lead screw and is always engaged with the first bevel gear during the rotation of the rotating frame. The overall movement track of the door body is that the door body rotates around the rotating shaft and performs telescopic translation along the lead screw. Therefore, the gap between the door body and the bottom plate can be minimized as much as possible under the premise that the door body and the bottom plate do not interfere with each other.

Description

Technical Field

[0001] This invention relates to the technical field of cooking devices, and in particular to a door structure and a cooking device. Background Technology

[0002] Most current built-in steam ovens use fixed-axis hinges to open and close the door.

[0003] However, existing fixed-pivot hinges require a large gap between the lower edge of the front of the door and the bottom of the cabinet to prevent interference between the lower edge of the front of the door and the bottom of the cabinet during the opening and closing of the door. The gap is prone to dust accumulation and water seepage, making it difficult to clean and affecting the overall appearance. Summary of the Invention

[0004] Therefore, it is necessary to provide a door structure and cooking device with a relatively small gap that will not cause interference, in order to avoid interference between the lower edge of the front of the door and the bottom of the cabinet.

[0005] This application first provides a door structure, including a base plate, a drive assembly, a linkage assembly, and a door body.

[0006] The drive assembly includes a drive component and a rotating shaft. The drive component is fixed to the base plate and can drive the rotating shaft to rotate.

[0007] The linkage assembly includes a rotating frame, a lead screw, a limiting rod, a first bevel gear, and a second bevel gear. The rotating frame is fixed to the rotating shaft. The lead screw is arranged parallel to the limiting rod. One end of the limiting rod is fixed to the rotating frame, and the other end is inserted into the door body and slidably connected to the door body along its own length. The lead screw is rotatably connected to the rotating frame and threadedly connected to the door body.

[0008] The first bevel gear is fixed relative to the base plate, and the second bevel gear is fixed to the lead screw and always meshes with the first bevel gear during the rotation of the rotating frame.

[0009] In one embodiment, the rotating frame is U-shaped, with both ends of the rotating frame fixed to the rotating shaft, and the lead screw passing through the bottom of the rotating frame to the inner side of the rotating frame.

[0010] Understandably, the U-shaped rotating frame ensures that the rotating frame and the rotating shaft are fixed at two points to guarantee a firm connection, while the space inside the rotating frame can be used to accommodate other parts such as the first bevel gear and the second bevel gear, so as to minimize the space occupied by the linkage components.

[0011] In one embodiment, the linkage component includes two limiting rods, both of which are fixed to the bottom of the rotating frame and symmetrically arranged on both sides of the lead screw along the length of the rotating shaft.

[0012] Understandably, the limit rod can work with the lead screw to limit the rotation of the door and prevent the lead screw from rotating and causing the door to rotate. On the other hand, it can also guide the extension and retraction of the door.

[0013] In one embodiment, the linkage component further includes a bracket fixed to the base plate, and a support rod is fixed on the bracket;

[0014] The support rod and the second bevel gear are both located inside the rotating frame along the length of the rotating shaft. The rotating shaft passes through the support rod and the second bevel gear and is rotatably connected to both. The second bevel gear is fixed to the support rod.

[0015] Understandably, the support rod is used to support the rotating shaft and fix the second bevel gear, so that when the rotating shaft drives the rotating frame to rotate, the first bevel gear can mesh with the second bevel gear and rotate, thereby realizing the extension and retraction of the lead screw.

[0016] In one embodiment, the door structure includes two sets of linkage components, which are respectively disposed at both ends of the pivot.

[0017] Understandably, the two sets of linkage components can improve the overall uniformity of force on the door structure of this application, making the door connection more stable and the rotation and extension movements smoother.

[0018] In one embodiment, the drive assembly further includes a first gear and a second gear that mesh with each other, the first gear being fixed to the output shaft of the drive member and the second gear being fixed to the rotating shaft;

[0019] The number of teeth of the first gear is less than that of the second gear, and the number of teeth of the first bevel gear is greater than that of the second bevel gear.

[0020] Understandably, the first gear has fewer teeth than the second gear so that the shaft and rotating frame can obtain greater torque, reducing the power requirement of the drive components when the weight of the door is constant, thereby reducing the cost of parts; while the first bevel gear has more teeth than the second bevel gear, which can increase the extension and retraction speed of the door, thereby accelerating the active avoidance speed when the door opens, so as to minimize the height of the required clearance.

[0021] In one embodiment, the door includes a door body and a door baffle fixed to the bottom edge of the door body.

[0022] Understandably, by setting a door baffle at the bottom of the door body with a thickness less than that of the door body, the gap between the door body and the bottom plate can be further reduced while ensuring that the door can open and close normally and does not interfere with the bottom plate.

[0023] In one embodiment, a nut push rod is embedded and fixed inside the main body of the door, and the lead screw is threadedly connected to the nut push rod.

[0024] In one embodiment, a lower baffle corresponding to the door baffle is fixed to the top edge of the base plate.

[0025] A second aspect of this application provides a cooking apparatus, including the aforementioned door structure.

[0026] The aforementioned door structure uses a drive unit to rotate a pivot, which in turn uses a rotating frame fixed to the pivot to open and close the door. The automatic opening and closing of the door can be controlled by controlling the forward and reverse rotation of the drive unit, making it easy to operate.

[0027] During the rotation of the rotating frame, the relative rotation between the second bevel gear and the first bevel gear can drive the lead screw to rotate, thereby causing the door to extend and retract along the length of the lead screw. This ensures that the overall movement trajectory of the door is to rotate around the axis while extending and retracting along the lead screw, thus minimizing the gap between the door and the base plate while ensuring that they do not interfere with each other.

[0028] In addition, the extension and retraction of the door is achieved by rotating a lead screw. Utilizing the mechanical self-locking characteristics of the lead screw and nut structure, the extension and retraction length of the door can be arbitrarily suspended when the drive component stops rotating, thereby improving the user experience of the door structure of this application. Attached Figure Description

[0029] Figure 1 This is a perspective view of the door structure in the closed state of this application;

[0030] Figure 2 This is a perspective view of the door structure in the open state of this application;

[0031] Figure 3 for Figure 2 Enlarged view of the location of the driving and linkage components;

[0032] Figure 4 for Figure 3 A stereoscopic view from another angle.

[0033] Reference numerals: 10, base plate; 11, lower baffle; 20, drive assembly; 21, drive component; 22, rotating shaft; 23, first gear; 24, second gear; 30, linkage assembly; 31, rotating frame; 32, lead screw; 33, limit rod; 34, first bevel gear; 35, second bevel gear; 36, bracket; 361, support rod; 40, door body; 41, main body of door body; 411, nut push rod; 42, door baffle. Detailed Implementation

[0034] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0035] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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 limitations on this invention.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0037] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0038] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0039] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0040] Please combine Figure 1 , Figure 2 as well as Figure 3 As shown, this application first provides a door structure, including a base plate 10, a drive assembly 20, a linkage assembly 30, and a door 40. The drive assembly 20 includes a drive component 21 and a rotating shaft 22. The drive component 21 is fixed to the base plate 10 and can drive the rotating shaft 22 to rotate. The linkage assembly 30 includes a rotating frame 31, a lead screw 32, a limiting rod 33, a first bevel gear 34, and a second bevel gear 35. The rotating frame 31 is fixed to the rotating shaft 22. The lead screw 32 is arranged parallel to the limiting rod 33. One end of the limiting rod 33 is fixed to the rotating frame 31, and the other end is inserted into the door 40 and slidably connected to the door 40 along its own length. The lead screw 32 is rotatably connected to the rotating frame 31 and threadedly connected to the door 40. The first bevel gear 34 is fixed relative to the base plate 10, and the second bevel gear 35 is fixed to the lead screw 32 and always meshes with the first bevel gear 34 during the rotation of the rotating frame 31.

[0041] In this application, the drive component 21 drives the rotating shaft 22 to rotate, thereby driving the door 40 to open and close through the rotating frame 31 fixed to the rotating shaft 22. The automatic opening and closing of the door 40 can be controlled by controlling the forward and reverse rotation of the drive component 21, which is convenient to operate.

[0042] Furthermore, during the rotation of the rotating frame 31, the relative rotation between the second bevel gear 35 and the first bevel gear 34 can drive the lead screw 32 to rotate, thereby causing the door body 40 to extend and retract along the length of the lead screw 32. This ensures that the overall motion trajectory of the door body 40 is to rotate around the rotating shaft 22 while extending and retracting along the lead screw 32, thereby minimizing the gap between the door body 40 and the base plate 10 without interference.

[0043] Specifically, taking the opening of the door 40 from the closed state as an example, at the moment of opening, the door 40 not only rotates outward around the pivot 22 as the rotation center, but also moves upward along the lead screw 32, thereby moving the door 40 away from the base plate 10 to prevent interference between the two; therefore, even if the gap between the door 40 and the base plate 10 is small in the closed state, the door 40 can still complete the opening and closing normally, effectively improving the appearance integrity of the door structure and avoiding water seepage and dust accumulation at the gap.

[0044] It is worth mentioning that the extension and retraction of the door body 40 is achieved by rotating the lead screw 32. Utilizing the mechanical self-locking characteristics of the lead screw and nut structure, when the drive component 21 stops rotating, the extension and retraction length of the door body 40 can be arbitrarily suspended, thereby improving the user experience of the door structure of this application.

[0045] Specifically, the drive component 21 can be a motor or other commonly used power components, such as a cylinder. It is only necessary to set a corresponding transmission component at the power output end to ensure that the rotating shaft 22 can be driven to rotate.

[0046] Please combine Figure 2 as well as Figure 3 As shown, in some embodiments, the rotating frame 31 is U-shaped, with both ends of the rotating frame 31 fixed to the rotating shaft 22, and the lead screw 32 passes through the bottom of the rotating frame 31 to the inner side of the rotating frame 31.

[0047] The U-shaped rotating frame 31 ensures that the rotating frame 31 and the rotating shaft 22 are fixed at two points to ensure a firm connection. At the same time, the space inside the rotating frame 31 can be used to accommodate other parts such as the first bevel gear 34 and the second bevel gear 35, so as to minimize the space occupied by the linkage assembly 30.

[0048] Please combine Figure 2 as well as Figure 3 As shown, in some embodiments, the linkage component 30 includes two limiting rods 33, both of which are fixed to the bottom of the rotating frame 31 and are symmetrically arranged on both sides of the lead screw 32 along the length direction of the rotating shaft 22.

[0049] The limiting rod 33 can work with the lead screw 32 to limit the rotation of the door 40 and prevent the lead screw 32 from rotating and causing the door 40 to rotate. On the other hand, it can also guide the extension and retraction of the door 40.

[0050] In some other embodiments, if two or more sets of linkage components 30 are connected to the rotating shaft 22, the lead screw 32 in each linkage component 30 can also be used to restrict the rotation of the door 40. In such embodiments, the limit rod 33 may not be provided. This application does not make further limitations here.

[0051] Please combine Figure 2 as well as Figure 3 As shown, in some embodiments, the linkage component 30 further includes a bracket 36 fixed to the base plate 10, and a support rod 361 is fixed on the bracket 36;

[0052] The support rod 361 and the second bevel gear 35 are both located inside the rotating frame 31 along the length of the rotating shaft 22. The rotating shaft 22 passes through the support rod 361 and the second bevel gear 35 and is rotatably connected to both. The second bevel gear 35 is fixed to the support rod 361.

[0053] The support rod 361 is used to support the rotating shaft 22 and fix the second bevel gear 35, so that when the rotating shaft 22 drives the rotating frame 31 to rotate, the first bevel gear 34 can mesh with the second bevel gear 35 and rotate, so as to realize the extension and retraction of the lead screw 32.

[0054] Specifically, the bracket 36 is L-shaped, with the horizontal plate fixed to the base plate 10 and the vertical plate located on the side of the rotating shaft 22 away from the door body 40, and directly opposite the first bevel gear 34 and the second bevel gear 35. With this arrangement, on the one hand, the contact area between the bracket 36 and the base plate 10 is relatively large and the fixation is reliable; on the other hand, the vertical plate can play a certain role in blocking and protecting the gear transmission structure, so as to prevent other foreign objects from being drawn into the gear transmission structure and affecting the normal operation of the door structure.

[0055] More specifically, the support rod 361 is fixed to the vertical plate of the bracket 36 and is set parallel to the base plate 10.

[0056] Please combine Figure 1 as well as Figure 2 As shown, in some embodiments, the door structure includes two sets of linkage components 30, which are respectively disposed at both ends of the pivot 22.

[0057] The two sets of linkage components 30 can improve the overall uniformity of force on the door structure of this application, making the door 40 connection more stable and the rotation and extension movements smoother.

[0058] In some embodiments, the two sets of linkage components 30 are mirror-symmetrical to further improve the uniformity of force distribution in the entire system. The two lead screws 32 rotate in opposite directions, and the threads on the lead screws 32 and the door body 40 are also opposite.

[0059] Of course, in some other embodiments, the door structure may also include three or more sets of linkage components 30 to further improve the overall stress uniformity of the door structure of this application, which will not be elaborated here.

[0060] Please combine Figure 2 as well as Figure 3 As shown, in some embodiments, the drive assembly 20 further includes a first gear 23 and a second gear 24 that mesh with each other, the first gear 23 being fixed to the output shaft of the drive member 21 and the second gear 24 being fixed to the rotating shaft 22;

[0061] The number of teeth of the first gear 23 is less than that of the second gear 24, and the number of teeth of the first bevel gear 34 is greater than that of the second bevel gear 35.

[0062] The first gear 23 has fewer teeth than the second gear 24, so that the rotating shaft 22 and the rotating frame 31 can obtain greater torque. Under the condition that the weight of the door body 40 is constant, the power requirement of the drive component 21 is reduced, thereby reducing the cost of parts. The first bevel gear 34 has more teeth than the second bevel gear 35, which can increase the extension and retraction speed of the door body 40, thereby accelerating the active avoidance speed when the door body 40 is opened, so as to minimize the height of the required reserved gap.

[0063] Please combine Figure 3 as well as Figure 4 As shown, in some embodiments, the door 40 includes a door body 41 and a door baffle 42 fixed to the bottom edge of the door body 41.

[0064] Specifically, the door baffle 42 is fixed to the bottom outer edge of the door body 41. The outer side of the door baffle 42 is flush with the door body 41, and the thickness of the door baffle 42 is less than that of the door body 41. This further reduces the gap between the door body 40 and the bottom plate 10 while ensuring that the door 40 can open and close normally and does not interfere with the bottom plate 10.

[0065] Please combine Figure 2 as well as Figure 4 As shown, in some embodiments, a nut push rod 411 is embedded and fixed inside the door body 41, and the lead screw 32 is threadedly connected to the nut push rod 411.

[0066] Please combine Figure 1 as well as Figure 4 As shown, in some embodiments, a lower baffle 11 corresponding to the door baffle 42 is fixed to the top edge of the base plate 10.

[0067] Of course, in some other embodiments, the lower baffle 11 may not be provided, and the door baffle 42 or the door body 41 may be extended as far as possible toward the bottom plate 10 to reduce the gap between the two. This application does not make any further limitations here.

[0068] A second aspect of this application provides a cooking apparatus, including the aforementioned door structure.

[0069] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0070] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A door structure, characterized in that, Includes a base plate (10), a drive assembly (20), a linkage assembly (30), and a door body (40). The drive assembly (20) includes a drive component (21) and a rotating shaft (22). The drive component (21) is fixed to the base plate (10) and can drive the rotating shaft (22) to rotate. The linkage component (30) includes a rotating frame (31), a lead screw (32), a limiting rod (33), a first bevel gear (34), and a second bevel gear (35). The rotating frame (31) is fixed to the rotating shaft (22). The lead screw (32) is arranged parallel to the limiting rod (33). One end of the limiting rod (33) is fixed to the rotating frame (31), and the other end is inserted into the door body (40) and slidably connected to the door body (40) along its own length direction. The lead screw (32) is rotatably connected to the rotating frame (31) and threadedly connected to the door body (40). The first bevel gear (34) is fixed relative to the base plate (10), and the second bevel gear (35) is fixed to the lead screw (32) and always meshes with the first bevel gear (34) during the rotation of the rotating frame (31).

2. The door structure according to claim 1, characterized in that, The rotating frame (31) is U-shaped, and both ends of the rotating frame (31) are fixed to the rotating shaft (22) respectively. The lead screw (32) passes through the bottom of the rotating frame (31) to the inside of the rotating frame (31).

3. The door structure according to claim 2, characterized in that, The linkage component (30) includes two limiting rods (33), both of which are fixed to the bottom of the rotating frame (31) and are symmetrically arranged on both sides of the lead screw (32) along the length direction of the rotating shaft (22).

4. The door structure according to claim 2, characterized in that, The linkage component (30) also includes a bracket (36) fixed to the base plate (10), and a support rod (361) is fixed on the bracket (36); The support rod (361) and the second bevel gear (35) are both located inside the rotating frame (31) along the length direction of the rotating shaft (22). The rotating shaft (22) passes through the support rod (361) and the second bevel gear (35) and is rotatably connected to both. The second bevel gear (35) is fixed to the support rod (361).

5. The door structure according to claim 1, characterized in that, The door structure includes two sets of linkage components (30), which are respectively disposed at both ends of the rotating shaft (22).

6. The door structure according to claim 1, characterized in that, The drive assembly (20) further includes a first gear (23) and a second gear (24) that mesh with each other. The first gear (23) is fixed to the output shaft of the drive member (21), and the second gear (24) is fixed to the rotating shaft (22). The number of teeth of the first gear (23) is less than that of the second gear (24), and the number of teeth of the first bevel gear (34) is greater than that of the second bevel gear (35).

7. The door structure according to any one of claims 1 to 6, characterized in that, The door (40) includes a door body (41) and a door baffle (42) fixed to the bottom edge of the door body (41).

8. The door structure according to claim 7, characterized in that, The door body (41) is embedded with a fixed nut push rod (411), and the lead screw (32) is threadedly connected to the nut push rod (411).

9. The door structure according to claim 7, characterized in that, The bottom plate (10) has a lower baffle (11) fixed at the top edge of its top surface, which corresponds to the door baffle (42).

10. A cooking apparatus, characterized in that, Includes the door structure as described in any one of claims 1 to 9.

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