Switch structure and cooking electric appliance

Abstract

The utility model provides a switch structure and a cooking electric appliance, which comprises a door assembly and a panel, a door hook is arranged on the door assembly, the door assembly is locked or unlocked through the door hook, a knob, a button and a limiting assembly are arranged on the panel, the knob is rotatably connected with the limiting assembly, the knob controls the limiting assembly to be selectively locked or unlocked with the panel, and the panel is connected with the button. The button is connected with the door hook, and the door hook is controlled to be unlocked by pressing the button. When the door assembly needs to be opened, a user needs to firstly rotate the knob to control the limiting assembly to be unlocked and separated from the panel, so that the user can press the button, and when the user presses the button, the button moves inwards to drive the door hook to be unlocked, and then the user can open the door assembly. The door assembly can be opened only through two actions of rotating and pressing, and the two actions are basically carried out at the same time, so that a child or an old person is prevented from opening the door assembly at will to cause a scald accident, and the user experience is improved.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, and more specifically, to a switch structure and a cooking appliance. Background Technology

[0002] Traditional cooking appliances, such as microwave ovens, steam ovens, and electric ovens, are used to cook food. With advancements in cooking equipment technology, many appliances now feature push-button door opening mechanisms. Pressing a button automatically opens the door, making operation simple and convenient. However, once the food inside is heated, it remains at a high temperature. In households with children, if adults leave the appliance unattended, a child could easily press a button to open the door and remove the heated food, posing a risk of burns from the hot food.

[0003] The prior art, patent CN115839507A, discloses a structure for a secondary door opening, which achieves the requirement of secondary operation when opening the cooking equipment by setting a first limiting device on the oven body. However, in this prior art, the first limiting device is located at the bottom of the oven body and is exposed. When debris accumulates at the bottom of the oven body, it can easily affect the function of the first limiting device, making it difficult to press the pressing part and thus affecting the opening of the door. Utility Model Content

[0004] In view of this, the present invention aims to propose a switch structure and cooking appliance to solve the problem that the switch structure of the secondary door opening in the prior art is not reasonably set and affects the door opening operation.

[0005] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0006] A switch structure, comprising:

[0007] A door assembly, wherein a door hook is provided, and the door assembly is locked or unlocked by means of the door hook.

[0008] The panel is provided with a knob, a button and a limiting component, wherein the knob is rotatably connected to the limiting component and the knob controls the limiting component to selectively lock or unlock with the panel, and the button is connected to the door hook and the door hook is unlocked by pressing the button.

[0009] Furthermore, a receiving cavity is provided on the panel, the receiving cavity is configured as a rearward recessed structure, and the knob, button and limiting component are all disposed inside the receiving cavity.

[0010] Furthermore, the outer contour of the button matches the contour of the receiving cavity, the knob is disposed on the button, and a return spring is connected to the knob. One end of the return spring is connected to the limiting component, and the other end of the return spring is connected to the central axis of the knob.

[0011] Furthermore, the limiting component includes a limiting buckle and a limiting groove. The limiting buckle is selectively locked or unlocked with the limiting groove. The limiting buckle is connected to the knob, and the knob drives the limiting buckle to rotate. The limiting groove is disposed in any direction around the receiving cavity.

[0012] Furthermore, the button includes a fixing post, a limiting member, and a pressing plate, wherein the pressing plate is exposed to the outside, the pressing plate is parallel to the outer surface of the panel, and when the door assembly is in the closed state, the pressing plate is substantially flush with the outer surface of the panel, the fixing post and the limiting member are both disposed on the inner side of the pressing plate, wherein the fixing post selectively pushes the door hook directly or indirectly to unlock.

[0013] Furthermore, a limiting part is provided on the receiving cavity of the panel, and the limiting part cooperates with the limiting member to limit the pressing stroke of the button.

[0014] Furthermore, a groove is provided in the middle of the button's pressing plate, and the knob is installed in the groove in the middle of the pressing plate. An opening is provided in the groove, and one end of the return spring on the knob passes through the opening and is connected to the limiting component.

[0015] Furthermore, a support rod is provided between the button and the door hook. The button is in partial contact with the support rod, and the upper end of the support rod is in contact with the door hook. The button pushes the support rod to rotate, and the rotation of the support rod pushes the door hook to unlock.

[0016] Furthermore, the support rod includes a fixing part, a first push plate and a second push plate. The first push plate and the second push plate are both connected to the fixing part and are arranged vertically. The first push plate contacts the fixing post of the button, and the second push plate contacts the door hook.

[0017] Compared with the prior art, the switch structure described in this utility model has the following advantages:

[0018] When the door assembly is closed, the limit component locks to the panel, preventing the user from rotating the knob and thus preventing the user from removing the heated food from the cooking appliance, thus avoiding burns. To open the door assembly, the user must first rotate the knob to unlock the limit component from the panel, allowing the user to press the button. When the user presses the button, the button moves inward, unlocking the door hook, allowing the user to open the door assembly. Thus, through the combined action of the knob and the button, the door assembly can only be opened by two actions: rotation and pressing, and these two actions are performed almost simultaneously. This prevents children or the elderly from accidentally opening the door assembly and causing burns, improving the user experience.

[0019] This utility model also provides a cooking appliance, including a stove body, a door frame and the switch structure described above, wherein the door frame is located on the front side of the stove body, the door assembly is installed on the door frame, and a switch bracket is provided on the stove body, panel or door frame near the door assembly, and the door hook is locked or unlocked with the switch bracket.

[0020] The cooking appliance described above has the same advantages over the prior art as the aforementioned switch structure, and will not be repeated here. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall cooking appliance described in an embodiment of the present utility model;

[0022] Figure 2 This is an exploded view of the door opening structure described in an embodiment of the present utility model;

[0023] Figure 3 This is a schematic diagram of the panel in the closed state according to an embodiment of the present utility model;

[0024] Figure 4 This is a schematic diagram from another perspective of the panel in the closed state according to an embodiment of the present utility model;

[0025] Figure 4a for Figure 4 A magnified view of the middle button area;

[0026] Figure 5 This is a schematic diagram of the panel opening state according to an embodiment of the present utility model;

[0027] Figure 6 This is a schematic diagram of the panel in the open state as described in an embodiment of the present utility model;

[0028] Figure 6a for Figure 6 A magnified view of the middle button area;

[0029] Figure 7This is a schematic diagram illustrating the function of the support rod and door hook in the closed state according to an embodiment of the present invention;

[0030] Figure 8 This is a schematic diagram illustrating the function of the support rod and door hook in the open state according to an embodiment of the present invention;

[0031] Figure 9 This is a schematic diagram of the button described in an embodiment of the present utility model;

[0032] Figure 10 This is a schematic diagram of the panel described in an embodiment of the present utility model;

[0033] Figure 11 This is a schematic diagram of the strut described in an embodiment of the present utility model.

[0034] Explanation of reference numerals in the attached figures:

[0035] 1-Knob, 2-Return Spring, 3-Button, 31-Fixing Post, 32-Limiting Part, 33-Press Plate, 331-Groove, 332-Opening, 4-Limiting Buckle, 5-Panel, 51-Receiving Cavity, 52-Bottom Wall, 521-Limiting Groove, 53-Limiting Part, 6-Support Rod, 61-Fixing Part, 62-First Push Plate, 63-Second Push Plate, 7-Door Hook, 8-Switch Bracket, 20-Door Assembly, 30-Door Frame, 100-Furnace Body Detailed Implementation

[0036] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. In addition, the orientations involved in the following specific embodiments are briefly explained: the directions or positional relationships indicated by "front," "rear," "up," "down," "left," "right," "top," and "bottom" mentioned in the embodiments refer to the orientations or positional relationships shown in the accompanying drawings. The term "on..." means directly or indirectly supported by the... element.

[0037] It should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows for communication; 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. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0038] like Figures 1-11As shown, a switch structure includes a door assembly 20 and a panel 5. The door assembly 20 is equipped with a door hook 7, which is used to lock or unlock the door assembly 20. The panel 5 is equipped with a knob 1, a button 3, and a limiting component. The knob 1 is connected to the limiting component, and the knob 1 controls the limiting component to selectively lock or unlock with the panel 5. The button 3 is connected to the door hook 7, and pressing the button 3 controls the door hook 7 to unlock. When the door assembly is closed, the limiting component is locked with the panel 5, and the user cannot rotate the knob, thus preventing the user from opening the door assembly and removing the heated food inside the cooking appliance, avoiding burns. When it is necessary to open the door assembly, the user must first rotate the knob 1 to unlock the limiting component from the panel 5, allowing the user to press the button. When the user presses the button, the button moves inward, causing the door hook 7 to unlock, thus allowing the user to open the door assembly. Therefore, through the combined action of the knob and the button, two actions are required to open the door assembly, preventing children or the elderly from accidentally opening the door assembly and causing burns, thus improving the user experience.

[0039] A receiving cavity 51 is provided on the panel 5. The receiving cavity 51 is a rearward recessed structure. The knob 1, button 3 and limiting component are all located inside the receiving cavity 51, so that the knob 1 is connected to the lower part of the door hook 7, which facilitates the door hook 7 to be unlocked by the knob 1. Preferably, the receiving cavity 51 is located on the panel 5 near the lower part for easy operation by the user.

[0040] like Figure 4a , Figure 6a and Figure 10 As shown, the limiting component includes a limiting buckle 4 and a limiting groove 521. The limiting buckle 4 can be selectively locked or unlocked with the limiting groove 521. The limiting buckle 4 is connected to the knob 1, and the knob 1 drives the limiting buckle 4 to rotate. The limiting groove 521 is set in any direction around the receiving cavity 51, only needing to be able to lock the limiting buckle 4. When the door component is in the closed state, the limiting buckle 4 is engaged inside the limiting groove 521, and the limiting groove 521 prevents the limiting buckle 4 from moving, thereby restricting the movement of the button 3. The user cannot operate the button and cannot open the door component. When it is necessary to open the door component, the limiting buckle 4 must first be disengaged from the limiting groove 521 by rotating the knob 1 before the button 3 can be pressed to open the door component.

[0041] Specifically, the receiving cavity 51 includes a bottom wall 52, and a limiting groove 521 can be provided on the bottom wall 52 of the receiving cavity 51.

[0042] The outer contour of button 3 matches the contour of receiving cavity 51, so that button 3 is installed inside receiving cavity 51 and the rear panel 5 forms a flat structure, preventing dust and debris from entering the receiving cavity 51 and affecting the normal operation of knob and button.

[0043] The knob 1 is located on the button 3, preferably in the middle of the button 3. This allows the user to open the door assembly by rotating the knob 1 and then pressing the button 3. The knob's position in the middle of the button 3 helps to balance the force on the button 3, preventing jamming when the button 3 is pressed due to uneven force. At the same time, the relative position of the knob 1 and the button 3 allows the user to open the door assembly with one hand, achieving almost simultaneous rotation and pressing, improving the convenience of opening the door, and simplifying the opening operation while preventing accidental opening.

[0044] Furthermore, a return spring 2 is connected to the knob 1. One end of the return spring 2 is connected to the limit buckle 4, and the other end of the return spring 2 is connected to the central axis of the knob 1. When the knob 1 is rotated, the limit buckle 4 rotates, causing the return spring 2 to store force. When the user no longer applies rotational force to the knob, and the door assembly is closed at the same time, the door hook 7 causes the button 3 to reset. At the same time, the return spring 2 restores its deformation, causing the limit buckle 4 to rotate back to the limit groove 521 and engage with the limit groove 521, thus locking the door assembly again.

[0045] Button 3 includes a fixing post 31, a limiting member 32, and a pressing plate 33. The pressing plate 33 is exposed for user pressing. The pressing plate 33 is parallel to the outer surface of panel 5, and when the door assembly is closed, the pressing plate 33 is basically flush with the outer surface of the panel. The fixing post 31 and the limiting member 32 are both located inside the pressing plate 33 and extend towards the rear of the furnace body. The fixing post 31 selectively pushes the door hook 7 directly or indirectly to unlock. The limiting member 32 is located on at least one of the side, top, and bottom sides of button 3. The limiting member 32 is designed to extend towards the rear of the furnace body and limits the pressing stroke of button 3 to prevent improper force from causing button misalignment.

[0046] Correspondingly, a limiting part 53 is provided on the receiving cavity 51 of the panel 5. The limiting part 53 cooperates with the limiting member 32 to limit the pressing stroke of the button 3. Further, the limiting member 32 is configured as a hook structure, and the limiting part 53 is configured as a locking hole structure. When the button is pressed, the limiting member 32 moves backward through the corresponding limiting part 53; when the door assembly is closed, the button 3 drives the limiting member 32 to move forward until the end of the limiting member 32 hooks onto the limiting part 53 to prevent the button 3 from disengaging from the receiving cavity 51. Preferably, there can be multiple limiting members 32 and limiting parts 53, and they correspond one-to-one.

[0047] Furthermore, a groove 331 is provided in the middle of the pressing plate 33 of button 3. The knob 1 is installed in the groove 331 in the middle of the pressing plate 33. When the door assembly needs to be opened, the user holds the knob 1 to rotate and press it. The setting position of the knob 1 ensures that the pressing plate 33 is subjected to balanced force. An opening 332 is provided in the groove 331. One end of the return spring 2 passes through the opening 332 and is connected to the limit buckle 4 of the limit assembly.

[0048] A support rod 6 is also provided between the button 3 and the door hook 7. The fixing post 31 of the button 3 is in partial contact with the support rod 6, and the upper end of the support rod 6 is in contact with the door hook 7. When the button 3 is pressed, the button 3 pushes the support rod 6 to rotate, and the rotation of the support rod 6 pushes the door hook 7 to unlock.

[0049] like Figures 7-8 and Figure 11 As shown, the support rod 6 includes a fixing part 61, a first push plate 62 and a second push plate 63. The fixing part 61 is connected to the panel 5 or the furnace body. The first push plate 62 and the second push plate 63 are both connected to the fixing part 61 and are arranged vertically. The first push plate 62 is in contact with the fixing post 31 of the button 3, and the second push plate 63 is in contact with the door hook 7. When the button 3 is pressed, the first push plate 62 is pressed by the fixing post 31 and begins to drive the support rod 6 to rotate around the fixing part 61 as the central axis. At the same time, the second push plate 63 rotates and drives the door hook 7 to unlock.

[0050] As part of the embodiments of this utility model, a cooking appliance is also provided, including a furnace body 100, a door frame 30, and the switch structure described above. The door frame 30 is located on the front side of the furnace body 100, and a cooking cavity for heating food is provided inside the furnace body 100. A door assembly 20 is installed on the door frame 30 and is used to seal the cooking cavity. A switch bracket 8 is provided on the furnace body 100, the panel 5, or the door frame 30 near the door assembly 20. The door hook 7 is locked or unlocked with the switch bracket 8.

[0051] The cooking appliance described in this utility model can be a microwave oven, an electric oven, an electric steamer, or other cooking appliances.

[0052] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. A switching structure, characterized by, The utility model relates to a door hook locking and unlocking device, including: Door assembly (20) is provided with door hook (7) on the door assembly (20), and the door assembly (20) is locked or unlocked through the door hook (7), Panel (5) is provided with knob (1), button (3) and limiting assembly on the panel (5), wherein the knob (1) is rotatably connected with the limiting assembly, the knob (1) controls the limiting assembly to be selectively locked or unlocked with the panel (5), the button (3) is connected with the door hook (7), and the door hook (7) is unlocked by pressing the button (3).

2. The switch fabric of claim 1, wherein, The panel (5) is provided with a containing cavity (51), which is arranged in a rearwardly recessed structure, and the knob (1), the button (3) and the limiting assembly are arranged inside the containing cavity (51).

3. The switch fabric of claim 2, wherein, The outer contour of the button (3) matches the contour of the containing cavity (51), the knob (1) is arranged on the button (3), a return spring (2) is connected to the knob (1), one end of the return spring (2) is connected to the limiting assembly, and the other end of the return spring (2) is connected to the central shaft of the knob (1).

4. The switch fabric of claim 2, wherein, The limiting assembly includes a limiting buckle (4) and a limiting groove (521), and the limiting buckle (4) is selectively locked or unlocked with the limiting groove (521), wherein the limiting buckle (4) is connected with the knob (1) and is rotated by the knob (1), and the limiting groove (521) is arranged in any direction around the containing cavity (51).

5. The switch fabric of claim 1, wherein, The button (3) includes a fixing column (31), a limiting piece (32) and a pressing plate (33), wherein the pressing plate (33) is exposed outside, the pressing plate (33) is parallel to the outer surface of the panel (5), and when the door assembly is in a closed state, the pressing plate (33) is substantially flush with the outer surface of the panel (5), and the fixing column (31) and the limiting piece (32) are arranged on the inner side of the pressing plate (33), wherein the fixing column (31) selectively directly or indirectly pushes the door hook (7) to be unlocked.

6. The switch fabric of claim 5, wherein, A limiting portion (53) is arranged on the containing cavity (51) of the panel (5), the limiting portion (53) cooperates with the limiting piece (32) to limit the pressing stroke of the button (3).

7. The switch fabric of claim 5, wherein, A groove (331) is further arranged at the middle position of the pressing plate (33) of the button (3), the knob (1) is installed at the groove (331) in the middle of the pressing plate (33), an opening (332) is arranged at the groove (331), and one end of the return spring (2) on the knob (1) passes through the opening (332) and is connected to the limiting assembly.

8. The switch fabric of claim 1, wherein, A supporting rod (6) is further arranged between the button (3) and the door hook (7), the button (3) is locally in contact with the supporting rod (6), the upper end of the supporting rod (6) is in contact with the door hook (7), the button (3) pushes the supporting rod (6) to rotate, and the supporting rod (6) pushes the door hook (7) to be unlocked.

9. The switch fabric of claim 8, wherein, The supporting rod (6) comprises a fixed part (61), a first push plate (62) and a second push plate (63), the first push plate (62) and the second push plate (63) are connected to the fixed part (61), the first push plate (62) and the second push plate (63) are vertically arranged, the first push plate (62) is in contact with the fixed column (31) of the button (3), and the second push plate (63) is in contact with the door hook (7).

10. A cooking appliance characterized in that, The door assembly (20) is installed on the door frame (30), and a switch bracket (8) is arranged at a position close to the door assembly (20) of the oven body (100) or the panel (5) or the door frame (30), and the door hook (7) is locked or unlocked with the switch bracket (8).

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