Cooking appliance
By employing a bracket, rotating rod, and push rod structure for the door lock device in the microwave oven, automatic door opening is achieved, solving the problems of complex drive devices and glass breakage in existing technologies, reducing costs, and improving safety and aesthetics.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG MIDEA KITCHEN APPLIANCES MFG CO LTD
- Filing Date
- 2025-07-16
- Publication Date
- 2026-07-07
AI Technical Summary
Existing microwave ovens require a high-power drive device for their door opening mechanism, resulting in a complex transmission mechanism, high cost, long opening time, and a tendency for the oven door glass to shatter under high heat.
The door lock device includes a bracket, a rotating rod, a drive assembly, and a push rod. The drive assembly pushes the rotating rod to separate from the hook seat, realizing automatic unlocking and opening of the door. After unlocking, the push rod pushes the door to rotate to the open position, which simplifies the door lock structure, reduces costs, and avoids glass breakage.
It enables automatic door opening without manual operation, reducing product costs, improving aesthetics, and avoiding the risks of door deformation and glass breakage, thus enhancing safety.
Smart Images

Figure CN224461512U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of household appliance technology, and more specifically, to a cooking utensil. Background Technology
[0002] In related technologies, microwave ovens are equipped with a door-opening mechanism used to open the oven door. This mechanism includes a drive unit, a gear reduction unit, an ejector assembly, and a push rod. Upon receiving an opening command, the push rod extends to open the oven door. However, this type of door-opening mechanism requires a high-power drive unit, has a complex transmission mechanism, and is costly. The push rod's stroke is also long, resulting in a long opening time. Furthermore, under high heat, the push rod's force on the oven door can easily cause the glass to shatter. Utility Model Content
[0003] The present invention aims to solve at least one of the technical problems existing in the prior art or related technologies.
[0004] Therefore, this utility model proposes a cooking utensil.
[0005] To achieve at least one of the above objectives, this utility model proposes a cooking appliance, comprising: a housing; a door rotatably connected to the housing for opening or closing the housing, the door having a hook seat; and a door lock device installed on the housing for locking the door to the housing, the door lock device comprising: a bracket installed on the housing; a rotating rod hinged to the bracket, wherein when the door is closed, the rotating rod is connected to the hook seat to lock the door to the housing; a drive assembly installed on the bracket, wherein upon receiving an opening command, the drive assembly pushes the rotating rod to rotate in a first direction, the rotating rod separating from the hook seat to unlock the door from the housing; and a push rod installed on the bracket, wherein after the rotating rod separates from the hook seat, the push rod extends in the direction toward the door to push the door to rotate in the direction away from the housing to a first open position.
[0006] This application discloses a cooking appliance, including a housing and a door. The housing can hold food, and the door is rotatably connected to the housing, allowing the housing to be opened and closed. The cooking appliance also includes a door lock device mounted on the housing. A hook is provided on the door, and the door lock device can be connected to or detached from the hook. When the door lock device is connected to the hook, the door closes and locks the housing. When the door lock device is detached from the hook, the door opens. Upon receiving an opening command, the door lock device automatically opens the door without manual operation by the user.
[0007] Furthermore, the door lock device includes a bracket and a rotating rod. The bracket is mounted on the housing, and the rotating rod is hinged to the bracket. The rotating rod can rotate around the hinge point between the rotating rod and the bracket, so that the bracket forms a lever structure. The rotating rod can be connected to a hook seat. When the door closes the housing, the rotating rod is connected to the hook seat to lock the door to the housing. Furthermore, the door lock device also includes a drive assembly. The drive assembly can apply a pushing force to one end of the rotating rod to make the rotating rod rotate around the hinge point. The other end of the rotating rod can be connected to or separated from the hook seat. When the rotating rod rotates, the connection or separation between the rotating rod and the hook seat can be achieved. Specifically, after receiving an opening command, the drive assembly pushes the rotating rod to rotate in a first direction. During the rotation of the rotating rod in the first direction, it separates from the hook seat, at which point the door and housing are unlocked.
[0008] Furthermore, the door lock device also includes a push rod mounted on a bracket. When the door closes the housing, the push rod experiences a pushing force in the direction towards the door. When the door is locked in the housing, the end of the push rod abuts against the door, allowing the door to stop the push rod and keep it in its initial position. After the rotating rod separates from the hook seat, the door unlocks from the housing, and the door no longer stops the push rod. Under the action of the pushing force, the push rod extends in the direction towards the door, pushing the door to rotate away from the housing until the door rotates to the first open position, achieving automatic door opening. When the door is in the first open position, the angle between the door and the housing is small, ranging from 0° to 5°, and the push rod has a short stroke.
[0009] By incorporating a drive assembly, a rotating rod, and a push rod into the door lock device, the drive assembly automatically pushes the rotating rod to rotate upon receiving an opening command. This causes the hook on the rotating rod to separate from the hook seat on the door, thereby unlocking the door and the cabinet. The push rod is no longer restricted by the door, allowing it to push the door open and automatically unlock the cooking appliance. This eliminates the need for a handle on the door, resulting in a seamless integration between the door and the cabinet where the cooking appliance is installed, enhancing the aesthetics of the appliance. Furthermore, this application unlocks the door and cabinet solely through the drive assembly's push of the rotating rod, eliminating the need for a complex door lock structure and reducing product costs. Moreover, since the push rod rotates the door even after it is unlocked, there is no risk of door deformation or glass breakage.
[0010] In some technical solutions, the rotating rod may optionally have a hook body that can be connected to or separated from the hook seat.
[0011] In this technical solution, the structure of the rotating rod is defined. The end of the rotating rod that connects to the hook seat has a hook body that engages with the hook seat. The hook body engages with the hook seat to lock the door to the box or to unlock the door from the box. Specifically, the hook body can connect to or separate from the hook seat. When the hook body is connected to the hook seat, the door closes the box and locks to it. When the hook body separates from the hook seat, the door unlocks from the box, and the door can be pushed to open the box. After the drive assembly receives an opening command, the drive assembly pushes the rotating rod to rotate in a first direction. During the rotation of the rotating rod in the first direction, the hook body separates from the hook seat, at which point the door unlocks from the box.
[0012] By setting a hook at one end of the rotating rod, the door can be locked or unlocked through the cooperation of the hook and the hook seat.
[0013] In some technical solutions, the door lock device may optionally include: a first elastic element, mounted on the bracket, one end of the first elastic element abutting against the rotating rod, when the door closes the box, the first elastic element is in a compressed state, and the first elastic element applies a thrust to the rotating rod so that the hook body and the hook seat remain connected.
[0014] In this technical solution, the structure of the door lock device is further defined. The door lock device also includes a first elastic element, which provides a preload force to the hook body to ensure a secure connection between the hook body and the hook seat. Specifically, the first elastic element is mounted on a bracket. The drive assembly contacts the upper surface of the rotating rod at the end away from the hook body, and the first elastic element contacts the lower surface of the rotating rod at the end away from the hook body. When the door is opened, the drive assembly pushes the rotating rod to rotate in a first direction to separate the hook body from the hook seat. When the door is closed, the first elastic element applies a thrust to the rotating rod, causing the rotating rod to tend to rotate in a second direction, opposite to the first direction. Since the hook body is connected to the hook seat in the closed state and cannot rotate in the second direction, the first elastic element provides a preload force to the hook body, which securely connects the hook body to the hook seat under the preload force.
[0015] By incorporating a first elastic element that abuts against the rotating rod in the door lock device, the hook body can generate a preload on the hook seat under the thrust of the first elastic element on the rotating rod, thus ensuring that the door hook is securely connected to the hook seat.
[0016] In some technical solutions, optionally, the bracket has a mounting frame for mounting the first elastic element, and the rotating rod has a positioning element, with one end of the first elastic element mounted on the positioning element.
[0017] In this technical solution, the structure of the door lock device is further defined. The door lock device has a structure for installing and limiting the first elastic element. Specifically, the bracket has a mounting frame, on which the first elastic element is mounted. The mounting frame can be cylindrical or a plate protruding from the bracket. A positioning element is provided on the rotating rod, and the end of the first elastic element that abuts against the rotating rod is mounted on the positioning element, thus achieving the installation and positioning of the first elastic element.
[0018] In one possible technical solution, the first elastic element is a spring, the positioning element is a column structure, and the positioning element is inserted into the first elastic element.
[0019] By setting a mounting bracket on the support and a positioning element on the rotating rod, the first elastic element can be installed and positioned by the mounting bracket and the positioning element, thereby improving the stability of the first elastic element.
[0020] In some technical solutions, optionally, the cooking appliance further includes: a cooking component installed in the housing, used for heating food; a monitoring circuit electrically connected to the cooking component, which, when the monitoring circuit is disconnected, allows the cooking component to be powered on, and when the monitoring circuit is on, the cooking component is short-circuited; the door lock device further includes: a first switch installed in the bracket, used to control the monitoring circuit to be on or off; and a second switch installed in the bracket, used to control the cooking component to be powered on or off; wherein, when the door closes the housing, the drive component remains in a triggered state on the first switch to disconnect the monitoring circuit, and the push rod remains in a triggered state on the second switch to power the cooking component; after the door lock device receives an opening command, the drive component pushes the rotating rod to rotate sequentially in a first direction to a first position and a second position; when the rotating rod is in the first position, the drive component separates from the first switch to turn on the monitoring circuit; when the rotating rod is in the second position, the hook separates from the hook seat, and then, as the push rod extends in the direction toward the door, the push rod separates from the second switch, and the cooking component is de-energized.
[0021] In this technical solution, the structure of the door lock device is further defined. The cooking appliance includes a cooking component and a monitoring circuit. The cooking component is used to cook the food, and the monitoring circuit is used to control the power connection status of the cooking component. Specifically, the cooking component is installed in the cabinet. When the cooking component is running, it heats the food inside the cabinet to cook it. The monitoring circuit is electrically connected to the cooking component. When the monitoring circuit is disconnected, the cooking component can be powered on and can operate. When the monitoring circuit is on, the cooking component is short-circuited and cannot operate.
[0022] Furthermore, the door lock device also includes a first switch and a second switch, which are used to control the on / off state of the monitoring circuit and the power connection status of the cooking component, respectively. Specifically, the first switch is mounted on the bracket and is a normally closed micro switch. When the first switch is triggered, the monitoring circuit is disconnected, and the cooking component can be powered on. When the first switch is not triggered, the monitoring circuit is connected, the cooking component is short-circuited, and the cooking component cannot be powered on. The second switch is mounted on the bracket and is a normally open micro switch. When the second switch is triggered, the cooking component can be powered on and can operate normally to heat the food. When the second switch is not triggered, the cooking component is de-powered and stops operating.
[0023] Furthermore, the first switch is triggered by a drive assembly, and the second switch is triggered by a push rod. When the door closes the cabinet, the drive assembly maintains the triggered state of the first switch to keep the monitoring circuit disconnected, thus ensuring the cooking assembly remains powered on and can operate normally under user control. Simultaneously, the push rod maintains the triggered state of the second switch, keeping the cooking assembly powered on and enabling its normal operation.
[0024] Furthermore, after the door lock device receives the opening command, the drive assembly pushes the rotating rod to rotate sequentially in the first direction to the first position and the second position. When the rotating rod is in the first position, the drive assembly separates from the first switch, at which point the first switch is not triggered, the monitoring circuit is activated, and the cooking assembly is short-circuited. Then the rotating rod rotates to the second position, at which point the hook body separates from the hook seat, and the door and cabinet are unlocked. In other words, the cooking assembly stops operating before the door and cabinet are unlocked. Understandably, if the cooking assembly remains running when the door and cabinet are opened, microwave leakage or high-temperature steam overflow from the cabinet may easily occur, potentially causing burns to the user. Therefore, the cooking appliance proposed in this application stops the cooking assembly before the door and cabinet are unlocked, improving the safety of the cooking appliance.
[0025] Furthermore, after the door and cabinet are unlocked, the push rod extends towards the door. As the push rod extends towards the door, it separates from the second switch, which is not triggered. At this point, the cooking component is de-energized to ensure it stops operating. As the push rod extends towards the door, it pushes the door open, creating a gap between the cabinet and the door. Since the cooking component has stopped operating, this prevents microwaves or high-temperature steam from escaping from the cabinet, thus avoiding injury to the user and further enhancing the safety of the cooking appliance.
[0026] In some technical solutions, the door lock device may optionally include: a spring plate installed on a first switching element, the first switching element having a first trigger point; when the door closes the housing, the drive assembly pushes the spring plate to press the first trigger point; when the drive assembly pushes the rotating rod to rotate to a first position, the drive assembly separates from the spring plate, and the spring plate separates from the first trigger point.
[0027] In this technical solution, the structure of the door lock device is further defined. The door lock device also includes a spring, and the drive assembly can trigger the first switch element through the spring. Specifically, the first switch element has a first trigger point. When the first trigger point is pressed, the first switch element is triggered; when the first trigger point is not pressed, the first switch element is not triggered. The spring is installed on the first switch element and is disposed adjacent to the first switch element. When the spring is not pressed by an external force, there is a gap between the spring and the first trigger point, and the first trigger point is not pressed. When the door closes the cabinet, the drive assembly contacts the spring and applies a compressive force to the spring. Under the action of the drive assembly, the spring moves in the direction towards the first trigger point and presses the first trigger point, triggering the first switch element. The monitoring circuit is disconnected, and the cooking assembly is not short-circuited, so that the cooking assembly can start normally.
[0028] Furthermore, when the drive component receives the door opening command, it pushes the rotating rod to the first position. At this time, the drive component separates from the spring, the spring is no longer squeezed by the drive component, and the spring returns to its natural, unforced state. At this time, the spring separates from the first trigger point, the first switch is not triggered, the monitoring circuit is turned on, the cooking component is short-circuited, and the cooking component cannot operate.
[0029] By setting a spring in the door lock device, the drive assembly can trigger the first switch by applying pressure to the spring, and the drive assembly can be separated from the spring to prevent the first switch from being triggered, thereby enabling the cooking assembly to be short-circuited or powered on depending on the state of the door opening and closing.
[0030] In some technical solutions, optionally, the push rod includes: a pressing section; and a clearance section connected to the pressing section, the diameter of the clearance section being smaller than the diameter of the pressing section; wherein, the second switching element has a second trigger point, when the door closes the housing, the pressing section presses the second trigger point, and when the door opens the housing, the clearance section moves to the position of the second trigger point, and the clearance section avoids the second trigger point.
[0031] In this technical solution, the structure of the push rod is defined. The push rod is a multi-segment variable-diameter structure, including a pressing segment and a yielding segment. The pressing segment is used to trigger the second switch, and the yielding segment is used to return the second switch to a non-triggered state. The diameter of the pressing segment is larger than the diameter of the yielding segment. Specifically, the second switch has a second trigger point. When the second trigger point is pressed, the second switch is triggered; when the second trigger point is not pressed, the second switch is not triggered. When the door closes the cabinet, the pressing segment moves to the position of the second trigger point. Because the diameter of the pressing segment is larger, it can press the second trigger point to trigger the second switch, enabling the cooking component to be powered on. When the door opens the cabinet, as the push rod moves towards the door, the yielding segment moves to the position of the second trigger point. Because the diameter of the yielding segment is smaller than the diameter of the pressing segment, it cannot contact the second trigger point, the second trigger point is not pressed, the second switch is not triggered, and the cooking component is de-energized.
[0032] By setting the push rod as a multi-segment structure with different diameters, the second switching element can be triggered or detrimented as the push rod moves, eliminating the need for other complex structures and reducing the production cost of the door lock device.
[0033] In some technical solutions, the cooking components optionally include at least one of a heating element, a steam generator, and a microwave generator.
[0034] In this technical solution, the cooking component is defined. The cooking component includes at least one of a heating element, a steam generating device, or a microwave generating device. For example, when the cooking appliance is a microwave oven, the cooking component includes a microwave generating device; when the cooking appliance is a steam oven, the cooking component includes a heating element and a steam generating device.
[0035] In some technical solutions, optionally, the drive assembly includes: a motor mounted on a bracket; and a drive member mounted on the bracket, with the motor and drive member located on opposite sides of the bracket, and the motor driving the drive member to rotate; wherein the rotating rod has a first mating surface, and the drive member can contact the first mating surface.
[0036] In this technical solution, the structure of the drive assembly is defined. The drive assembly includes a motor and a drive component, both of which are mounted on a bracket. The motor is connected to the drive component, and when the motor is running, the drive component can rotate under the motor's drive. The drive component can be a cam. The motor and drive component are respectively mounted on both sides of the bracket. The drive component, rotating rod, first switch, second switch, and push rod are located on the same side of the bracket, while the motor is located on the other side of the bracket to avoid interference between the motor and other components in the door lock device.
[0037] Furthermore, the rotating rod has a first mating surface, which is used to engage with a driving component. The driving component can contact the first mating surface to push the rotating rod to rotate. Specifically, when the motor receives the door opening command, the motor starts running and drives the driving component to rotate. The driving component can be a cam, and the protruding side of the driving component rotates to the position of contact with the first mating surface. As the driving component continues to rotate, it pushes the rotating rod to rotate in a first direction, so that the hook body separates from the hook seat on the door body, and the door body unlocks from the box body. The first mating surface can be a plane.
[0038] By setting a first mating surface on the rotating rod that mates with the driving component, the driving component can more easily apply a thrust to the rotating rod, so that the rotating rod is subjected to a stable force to rotate.
[0039] In some technical solutions, the door lock device may optionally include a second elastic element, mounted on the push rod, which is compressed when the door closes the housing, and pushes the push rod to move toward the door when the door is unlocked.
[0040] In this technical solution, the structure of the door lock device is further defined. The door lock device also includes a second elastic element, which is used to push the push rod to move. Specifically, the second elastic element is installed on the push rod, which has a boss structure, and the bracket has a platform for limiting movement. The two ends of the second elastic element abut against the platform on the bracket and the boss on the push rod, respectively. When the door closes the cabinet, the push rod is squeezed by the door, and the door pushes the push rod to move in the direction toward the inside of the cabinet. The second elastic element is compressed, and the second elastic element exerts a thrust on the push rod in the direction toward the door. When the door unlocks from the cabinet, the second elastic element pushes the push rod to move in the direction toward the door, so that the push rod can push the door to open the cabinet, realizing automatic door opening. The second elastic element can be a spring.
[0041] By incorporating a second elastic element into the door lock device, the push rod can be moved via the second elastic element, thereby enabling automatic door opening.
[0042] In some technical solutions, optionally, when the hook body is connected to the hook seat, the rotating rod is in the third position, and the door lock device further includes: a limiting member connected to the bracket, the rotating rod having a second mating surface, the limiting member engaging with the second mating surface when the rotating rod is in the third position to prevent the rotating rod from rotating in a second direction, the second direction being opposite to the first direction.
[0043] In this technical solution, the door lock device is further defined. The door lock device also includes a limiting member, and the rotating rod has a second mating surface that cooperates with the limiting member. The cooperation between the limiting member and the second mating surface can achieve the stopping and limiting of the rotating rod. Specifically, when the hook body is connected to the hook seat, the door body and the box body are locked, and the rotating rod is in the third position. When the rotating rod is in the third position, the limiting member abuts against the second mating surface. The second mating surface is a plane, and the limiting member has a certain width. Under the action of the limiting member, the second mating surface cannot rotate in a second direction opposite to the first direction, so that the rotating rod is kept in the third position.
[0044] In some technical solutions, optionally, after the door and the box are unlocked and the box is opened, the rotating rod can return to the third position. During the process of the door closing the box, the hook first contacts the hook seat and moves along the surface of the hook seat until the door closes the box, the hook connects with the hook seat, and the rotating rod rotates to the third position again.
[0045] This technical solution defines the closing process. During the opening of the cabinet, the rotating rod needs to deviate from the third position to separate the hook from the hook seat, thus unlocking the door from the cabinet. Once the door is unlocked and the cabinet is open, the rotating rod returns to the third position. When the user needs to close the door, they push the door towards the cabinet. During the closing process, the hook first contacts the hook seat on the door. As the door rotates towards the cabinet, the hook moves along the surface of the hook seat until the door closes the cabinet, at which point the hook connects with the hook seat to lock the door to the cabinet. At this point, the rotating rod rotates back to the third position. Thus, automatic locking of the door and cabinet is achieved during closing.
[0046] In some technical solutions, optionally, the side of the hook facing the box has a guide slope, and the side of the hook facing the door has an arc surface.
[0047] In this technical solution, the structure of the hook seat and the hook body is defined. The side of the hook seat facing the box has an arc surface, and the side of the hook seat facing the box has a guide slope. During the process of the door closing the box, the arc surface of the hook body moves along the guide slope of the hook seat until the hook body is connected and locked with the hook seat. Specifically, when the door closes the box, the door rotates towards the box, and the arc surface on the hook body first contacts the guide slope on the hook seat. As the door continues to rotate towards the box, the arc surface on the hook body slides upward along the guide slope until the door is closed in place, the arc surface separates from the guide slope, and the hook body is locked to the hook seat.
[0048] The guide ramp has a guiding function, and the arc surface also has the function of reducing friction. By setting an arc surface at the end of the hook body and setting a guide ramp on the side of the hook seat facing the box, the friction between the hook body and the hook seat can be reduced through the cooperation of the guide ramp and the arc surface, so that the hook body and the hook seat can be connected more smoothly and the user's closing resistance can be reduced.
[0049] In some technical solutions, the hook body may optionally also have a compression ramp, which is located on the side of the arc surface away from the door body, and an angle is formed between the compression ramp and the guide ramp when the door closes the box body.
[0050] In this technical solution, the structure of the hook body is further defined. The hook body also has a pressing slope, which is located on the side of the arc surface facing away from the door body. The angle between the pressing slope and the horizontal plane ranges from 55° to 70°. The guide slope on the hook seat has an angle with the horizontal plane, which ranges from 20° to 35°. When the door closes the box, the pressing slope and the guide slope form an angle, which ranges from 75° to 105°. This allows the rotating rod to provide a pressing force towards the inside of the box body on the door body, which ranges from 35N to 60N.
[0051] In some technical solutions, the rotating rod may optionally have a clearance groove, which is arranged adjacent to the hook body and is used to avoid the hook seat.
[0052] In this technical solution, the structure of the rotating rod is further defined. The rotating rod also has a clearance groove, which is adjacent to the hook body and located on the side of the hook body away from the door body, thus allowing the hook body to form a hook-shaped structure. When the hook body is connected to the hook seat, because the hook seat has a protruding structure, this protruding structure can penetrate into the clearance groove, and the clearance groove avoids the hook seat, thus locking the hook body to the hook seat and connecting the hook body and the hook seat.
[0053] In some technical solutions, the cooking appliance may optionally include: at least two hinge devices, respectively installed on both sides of the door, the hinge devices being used to rotatably connect the door to the cabinet, at least one of the at least two hinge devices having a damping component; after the push rod pushes the door to the first open position, the door can continue to rotate under the action of gravity, and when the door rotates to the second open position, the damping component generates rotational resistance to the door.
[0054] In this technical solution, the structure of the cooking appliance is further defined. The cooking appliance also includes at least two hinge devices, through which the door is rotatably connected, and the hinge devices also enable the door to open automatically. Specifically, at least two hinge devices are respectively installed on both sides of the door to ensure balanced force distribution on the door. At least one of the at least two hinge devices has a damping component, which generates resistance to the door as it is further opened, thereby slowing down the door's rotation speed.
[0055] Specifically, during the automatic opening process of the cooking appliance, when the door rotates to the first position, the push rod stops extending. At this point, the door continues to rotate away from the appliance under its own weight, and the opening angle continues to increase until the door rotates to the second open position. In one possible technical solution, when the door is in the second open position, the angle between the door and the appliance is 45° to 55°. Further, when the door rotates to the second position, the damping component generates rotational resistance on the door. The door continues to rotate under gravity to open the appliance, but due to the damping component, the door's rotational speed is slowed down by the rotational resistance, achieving a gentle opening effect.
[0056] In one possible technical solution, there are two hinge devices, one mounted on each side of the door. One hinge device has a damping component, while the other does not. This reduces the production cost of the cooking appliance while still achieving a soft-opening door.
[0057] By incorporating a hinge device with damping components into the cooking appliance, the door's opening speed can be slowed down, achieving a gentle-opening effect and improving the user experience. Furthermore, the push rod rotates the door even after it has been unlocked from the cabinet, eliminating the risk of door deformation or glass shattering.
[0058] In some technical solutions, the cooking appliance may optionally include a control panel, mounted on the housing, which is electrically connected to the drive assembly.
[0059] In this technical solution, the structure of the cooking appliance is further defined. The cooking appliance also includes a control panel for controlling its operation. Specifically, the control panel is installed within and exposed within the housing, and is located on the same side as the door, allowing the user to input control commands via the control panel. The control panel is electrically connected to the drive assembly. When the door needs to be opened, the user inputs an opening command via the control panel. Upon receiving the command, the drive assembly begins operation, pushing the rotating rod to rotate in a first direction until the hook separates from the hook seat, at which point the door unlocks from the housing. Then, the push rod automatically moves towards the door, pushing the door to open the housing, thus achieving automatic door opening.
[0060] By incorporating control panels into cooking appliances, users can control these appliances through the control panel, thus improving user convenience.
[0061] In some technical solutions, the cooking appliance may optionally include an oven, a microwave oven, or a steam oven.
[0062] Additional aspects and advantages of this invention will become apparent in the description that follows, or may be learned by practice of this invention. Attached Figure Description
[0063] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0064] Figure 1 This invention provides a schematic diagram of the structure of a cooking appliance when the door is closed, according to one embodiment of the present invention.
[0065] Figure 2 This invention provides a schematic diagram of the cooking appliance's structure when the door of the cabinet is opened, according to an embodiment of the present invention.
[0066] Figure 3 This invention provides a schematic diagram of the door lock device when the door closes the box according to an embodiment of the present invention.
[0067] Figure 4 This is a second schematic diagram of the structure of the cooking appliance when the door is closed, according to an embodiment of the present invention;
[0068] Figure 5 It shows Figure 4 A magnified view of a portion of region A in the middle;
[0069] Figure 6 A schematic diagram of the structure of a door lock device according to an embodiment of the present invention is shown;
[0070] Figure 7 A schematic diagram of the rotating rod according to an embodiment of the present invention is shown;
[0071] Figure 8 A schematic diagram of the structure of a door body according to an embodiment of the present invention is shown;
[0072] Figure 9 It shows Figure 8 A magnified view of a portion of region B in the middle;
[0073] Figure 10 One of the structural schematic diagrams of a hinge device according to an embodiment of the present invention is shown;
[0074] Figure 11 A second schematic diagram of the hinge device according to an embodiment of the present invention is shown;
[0075] Figure 12 One of the schematic diagrams of the door opening box of this utility model is shown;
[0076] Figure 13This is a second schematic diagram of the door opening box according to an embodiment of the present invention;
[0077] Figure 14 The third schematic diagram of the door opening box of one embodiment of the present invention is shown.
[0078] in, Figures 1 to 14 The correspondence between the reference numerals and component names in the attached drawings is as follows:
[0079] 100 Cooking appliance, 110 Cabinet, 120 Door, 121 Hook, 122 Guide ramp, 130 Door lock device, 131 Bracket, 132 Drive assembly, 133 Motor, 134 Drive component, 135 First elastic component, 136 Mounting bracket, 137 Limiting component, 140 Rotating rod, 141 Hook, 142 Positioning component, 143 First mating surface, 144 Second mating surface, 145 Arc surface, 146 Extrusion ramp, 147 Clearance groove, 150 First switch component, 151 First trigger point, 152 Spring, 160 Second switch component, 161 Second trigger point, 170 Push rod, 171 Extrusion section, 172 Clearance section, 173 Second elastic component, 180 Hinge device, 181 Damping assembly, 190 Control panel. Detailed Implementation
[0080] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0081] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.
[0082] The following reference Figures 1 to 14 This invention describes a cooking appliance 100 provided according to some embodiments of the present invention.
[0083] In one embodiment according to this application, such as Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 10 and Figure 11As shown, this application discloses a cooking appliance 100, comprising: a housing 110; a door 120 rotatably connected to the housing 110, the door 120 being used to open or close the housing 110, the door 120 having a hook 121; and a door lock device 130 mounted on the housing 110, the door lock device 130 being used to lock the door 120 to the housing 110, the door lock device 130 comprising: a bracket 131 mounted on the housing 110; and a rotating rod 140 hinged to the bracket 131, the rotating rod 140 being connected to the bracket 131 when the door 120 is closed. Hook 121 is used to lock the door 120 to the housing 110; drive assembly 132 is mounted on bracket 131. After receiving the door opening command, drive assembly 132 pushes rotating rod 140 to rotate in a first direction. Rotating rod 140 separates from hook 121 to unlock door 120 from housing 110; push rod 170 is mounted on bracket 131. After rotating rod 140 separates from hook 121, push rod 170 extends in the direction toward door 120 to push door 120 to rotate in the direction away from housing 110 to the first open position.
[0084] This application discloses a cooking appliance 100, including a housing 110 and a door 120. The housing 110 is capable of holding food ingredients, and the door 120 is rotatably connected to the housing 110, allowing the housing 110 to be opened or closed. The cooking appliance 100 also includes a door lock device 130, which is installed in the housing 110. A hook 121 is provided on the door 120, and the door lock device 130 can be connected to or detached from the hook 121. When the door lock device 130 is connected to the hook 121, the door 120 closes and locks the housing 110. When the door lock device 130 is detached from the hook 121, the door 120 opens the housing 110. Upon receiving an opening command, the door lock device 130 can automatically open the door 120 without manual operation by the user.
[0085] Furthermore, the door lock device 130 includes a bracket 131 and a rotating rod 140. The bracket 131 is mounted on the housing 110, and the rotating rod 140 is hinged to the bracket 131. The rotating rod 140 can rotate around the hinge point between the rotating rod 140 and the bracket 131, so that the bracket 131 forms a lever structure. The rotating rod 140 can be connected to a hook seat 121. When the door 120 closes the housing 110, the rotating rod 140 is connected to the hook seat 121 to lock the door 120 to the housing 110.
[0086] Furthermore, the door lock device 130 also includes a drive assembly 132, which can apply a pushing force to one end of the rotating rod 140 to make the rotating rod 140 rotate around the hinge point. The other end of the rotating rod 140 can be connected to or separated from the hook seat 121. Therefore, when the rotating rod 140 rotates, the connection or separation between the rotating rod 140 and the hook seat 121 can be realized. Specifically, after the drive assembly 132 receives the door opening command, the drive assembly 132 pushes the rotating rod 140 to rotate in the first direction. During the rotation of the rotating rod 140 in the first direction, the rotating rod 140 separates from the hook seat 121, at which time the door 120 and the housing 110 are unlocked.
[0087] Furthermore, the door lock device 130 also includes a push rod 170, which is mounted on the bracket 131. When the door 120 closes the housing 110, the push rod 170 receives a pushing force in the direction toward the door 120. When the door 120 is locked to the housing 110, the end of the push rod 170 abuts against the door 120, allowing the door 120 to stop the push rod 170 and keep it in its initial position. After the rotating rod 140 separates from the hook seat 121, the door 120 unlocks from the housing 110, and the door 120 no longer stops the push rod 170. Under the action of the pushing force, the push rod 170 extends in the direction toward the door 120, pushing the door 120 to rotate away from the housing 110 until the door 120 rotates to the first open position, thus achieving automatic door opening. Figure 12 As shown, when the door 120 is in the first open position, the angle between the door 120 and the box 110 is small. At this time, the angle between the door 120 and the box 110 is in the range of 0° to 5°, and the stroke of the push rod 170 is short.
[0088] By incorporating a drive assembly 132, a rotating rod 140, and a push rod 170 into the door lock device 130, the drive assembly 132 automatically pushes the rotating rod 140 to rotate upon receiving an opening command. This causes the hook 141 on the rotating rod 140 to separate from the hook seat 121 on the door 120, thereby unlocking the door 120 from the cabinet 110. The push rod 170 is no longer limited by the door 120, allowing it to push the door 120 to open the cabinet 110, thus enabling automatic opening of the cooking appliance 100. This eliminates the need for a handle on the door 120, resulting in a seamless integration between the door 120 and the cabinet where the cooking appliance 100 is installed, enhancing the aesthetics of the cooking appliance 100. Furthermore, this application achieves unlocking of the door 120 from the cabinet 110 solely through the push of the rotating rod 140 by the drive assembly 132, eliminating the need for a complex door lock structure and reducing product costs. Furthermore, the push rod 170 pushes the door 120 to rotate when the door 120 and the housing 110 are already unlocked, eliminating the risk of door 120 deformation or glass breakage. In some embodiments, optionally, such as Figure 2 , Figure 3 , Figure 6 and Figure 7 As shown, the rotating rod 140 has a hook body 141, which can be connected to or separated from the hook seat 121.
[0089] In this embodiment, the structure of the rotating rod 140 is defined. The end of the rotating rod 140 that connects to the hook seat 121 has a hook body 141 that engages with the hook seat 121. The hook body 141 can engage with the hook seat 121 to lock the door 120 to the box 110, or to unlock the door 120 from the box 110. Specifically, the hook body 141 can connect to or separate from the hook seat 121. When the hook body 141 is connected to the hook seat 121, the door 120 closes and locks the box 110. When the hook body 141 is separated from the hook seat 121, the door 120 unlocks from the box 110, and the door 120 can be pushed to open the box 110. After the drive assembly 132 receives the door opening command, the drive assembly 132 pushes the rotating rod 140 to rotate in the first direction. During the rotation of the rotating rod 140 in the first direction, the hook body 141 separates from the hook seat 121, and at this time the door body 120 and the box body 110 are unlocked.
[0090] By setting a hook 141 at one end of the rotating rod 140, the door 120 can be locked or unlocked through the cooperation of the hook 141 and the hook seat 121.
[0091] In some embodiments, optionally, such as Figure 1 , Figure 3 , Figure 4 and Figure 5As shown, the door lock device 130 also includes: a first elastic element 135, which is installed on the bracket 131. One end of the first elastic element 135 abuts against the rotating rod 140. When the door 120 closes the box 110, the first elastic element 135 is in a compressed state. The first elastic element 135 applies a pushing force to the rotating rod so that the hook 141 and the hook seat 121 remain connected.
[0092] In this embodiment, the structure of the door lock device 130 is further defined. The door lock device 130 also includes a first elastic element 135, which provides a preload force to the hook 141 to ensure a secure connection between the hook 141 and the hook seat 121. Specifically, the first elastic element 135 is mounted on the bracket 131. The drive assembly 132 contacts the upper surface of the end of the rotating rod 140 away from the hook 141, and the first elastic element 135 contacts the lower surface of the end of the rotating rod 140 away from the hook 141. When the door is opened, the drive assembly 132 pushes the rotating rod to rotate in a first direction to separate the hook 141 from the hook seat 121. When the door 120 closes the box 110, the first elastic element 135 applies a pushing force to the rotating rod 140. Under the pushing force of the first elastic element 135, the rotating rod 140 tends to rotate in a second direction, which is opposite to the first direction. Since the hook body 141 is connected to the hook seat 121 when the door is closed, the hook body 141 cannot rotate in the second direction. Therefore, the first elastic element 135 provides a pre-tightening force to the hook body 141, and the hook body 141 is firmly connected to the hook seat 121 under the action of the pre-tightening force.
[0093] By providing a first elastic element 135 in the door lock device 130 that abuts against the rotating rod, the hook body 141 can generate a pre-tightening force on the hook seat 121 under the pushing force of the first elastic element 135 on the rotating rod 140, so that the door hook is firmly connected to the hook seat 121.
[0094] In some embodiments, optionally, such as Figure 6 As shown, the bracket 131 has a mounting bracket 136 for mounting the first elastic member 135, and the rotating rod 140 has a positioning member 142, with one end of the first elastic member 135 mounted on the positioning member 142.
[0095] In this embodiment, the structure of the door lock device 130 is further defined. The door lock device 130 has a structure for mounting and limiting the first elastic member 135. Specifically, the bracket 131 has a mounting frame 136, on which the first elastic member 135 is mounted. The mounting frame 136 can be cylindrical or a plate protruding from the bracket 131. A positioning member 142 is provided on the rotating rod 140. One end of the first elastic member 135 that abuts against the rotating rod 140 is mounted on the positioning member 142, thereby achieving the installation and positioning of the first elastic member 135.
[0096] In one possible embodiment, the first elastic member 135 is a spring, and the positioning member 142 is a column structure, with the positioning member 142 inserted into the first elastic member 135.
[0097] By providing a mounting bracket 136 on the bracket 131 and a positioning element 142 on the rotating rod 140, the first elastic element 135 can be installed and positioned by the mounting bracket 136 and the positioning element 142, thereby improving the stability of the first elastic element 135.
[0098] In some embodiments, optionally, such as Figure 1 , Figure 2 , Figure 5 and Figure 6 As shown, the cooking appliance 100 further includes: a cooking component installed in the housing 110, the cooking component being used to heat food; a monitoring circuit electrically connected to the cooking component, wherein the cooking component is powered when the monitoring circuit is disconnected, and short-circuited when the monitoring circuit is on; the door lock device 130 further includes: a first switch 150 installed in the bracket 131, the first switch 150 being used to control the monitoring circuit to be on or off; a second switch 160 installed in the bracket 131, the second switch 160 being used to control the cooking component to be powered on or off; wherein, when the door 120 closes the housing 110, the drive assembly 132 maintains contact with the first switch 150. The trigger state of 50 is used to disconnect the monitoring circuit, and the push rod 170 remains in the trigger state of the second switch 160 so that the cooking component can be powered on. After the door lock device 130 receives the door opening command, the drive component 132 pushes the rotating rod 140 to rotate sequentially to the first position and the second position in the first direction. When the rotating rod 140 is in the first position, the drive component 132 separates from the first switch 150 so that the monitoring circuit is turned on. When the rotating rod 140 is in the second position, the hook body 141 separates from the hook seat 121. Then, as the push rod 170 extends in the direction toward the door body 120, the push rod 170 separates from the second switch 160, and the cooking component is de-energized.
[0099] In this embodiment, the structure of the door lock device 130 is further defined. The cooking appliance 100 includes a cooking component and a monitoring circuit. The cooking component is used to cook food, and the monitoring circuit controls the power supply status of the cooking component. Specifically, the cooking component is installed in the housing 110. When the cooking component is running, it heats the food inside the housing 110 to cook it. The monitoring circuit is electrically connected to the cooking component. When the monitoring circuit is disconnected, the cooking component is powered on and can operate. When the monitoring circuit is on, the cooking component is short-circuited and cannot operate.
[0100] Furthermore, the door lock device 130 also includes a first switch 150 and a second switch 160, which are used to control the on / off state of the monitoring circuit and the power connection status of the cooking component, respectively. Specifically, the first switch 150 is mounted on the bracket 131 and is a normally closed micro switch. When the first switch 150 is triggered, the monitoring circuit is disconnected, and the cooking component can be powered on. When the first switch 150 is not triggered, the monitoring circuit is connected, the cooking component is short-circuited, and the cooking component cannot be powered on. The second switch 160 is mounted on the bracket 131 and is a normally open micro switch. When the second switch 160 is triggered, the cooking component can be powered on and can operate normally to heat the food. When the second switch 160 is not triggered, the cooking component is de-powered and stops operating.
[0101] Furthermore, the first switch 150 is triggered by the drive assembly 132, and the second switch 160 is triggered by the push rod 170. When the door 120 closes the housing 110, the drive assembly 132 remains in the triggered state of the first switch 150 to keep the monitoring circuit disconnected, thus ensuring that the cooking assembly remains powered and can operate normally under the user's control. Simultaneously, the push rod 170 remains in the triggered state of the second switch 160, ensuring that the cooking assembly remains powered and can operate normally.
[0102] Furthermore, after the door lock device 130 receives the door opening command, the drive assembly 132 pushes the rotating rod 140 to rotate sequentially in the first direction to the first position and the second position. When the rotating rod 140 is in the first position, the drive assembly 132 separates from the first switch 150. At this time, the first switch 150 is not triggered, the monitoring circuit is turned on, and the cooking assembly is short-circuited. Then the rotating rod rotates to the second position, at which time the hook 141 separates from the hook seat 121, and the door 120 unlocks from the cabinet 110. That is to say, the cooking assembly has already stopped operating before the door 120 unlocks from the cabinet 110. Understandably, if the cooking assembly is still running when the door 120 opens the cabinet 110, microwave leakage or high-temperature steam overflow from the cabinet 110 may easily occur, which could easily cause burns to the user. Therefore, the cooking appliance 100 proposed in this application stops the cooking components from operating before the door 120 and the cabinet 110 are unlocked, thus improving the safety of the cooking appliance 100.
[0103] Furthermore, after the door 120 and the housing 110 are unlocked, the push rod 170 extends towards the door 120. As the push rod 170 extends towards the door 120, it separates from the second switch 160, which is not triggered. At this time, the cooking component is de-energized to ensure that the cooking component stops operating. As the push rod 170 extends towards the door 120, it pushes the door 120 to open the housing 110, creating a gap between the housing 110 and the door 120. Since the cooking component has been ensured to stop operating, leakage of microwaves or high-temperature steam from the housing 110 is prevented, thus avoiding injury to the user and further enhancing the safety of the cooking appliance 100.
[0104] In some embodiments, optionally, such as Figure 5 and Figure 6 As shown, the door lock device 130 also includes a spring 152, which is installed on the first switch 150. The first switch 150 has a first trigger point 151. When the door 120 closes the box 110, the drive assembly 132 pushes the spring 152 to press the first trigger point 151. When the drive assembly 132 pushes the rotating rod 140 to rotate to the first position, the drive assembly 132 separates from the spring 152, and the spring 152 separates from the first trigger point 151.
[0105] In this embodiment, the structure of the door lock device 130 is further defined. The door lock device 130 also includes a spring 152, through which the drive assembly 132 can trigger the first switch element 150. Specifically, the first switch element 150 has a first trigger point 151. When the first trigger point 151 is pressed, the first switch element 150 is triggered; when the first trigger point 151 is not pressed, the first switch element 150 is not triggered. The spring 152 is mounted on the first switch element 150 and is disposed adjacent to the first switch element 150. When the spring 152 is not pressed by external force, there is a gap between the spring 152 and the first trigger point 151, and the first trigger point 151 is not pressed. When the door 120 closes the housing 110, the drive assembly 132 contacts the spring 152 and applies a squeezing force to the spring 152. Under the action of the drive assembly 132, the spring 152 moves in the direction toward the first trigger point 151 and squeezes the first trigger point 151. The first switch 150 is triggered, the monitoring circuit is disconnected, and the cooking assembly is not short-circuited, so that the cooking assembly can start normally.
[0106] Furthermore, when the drive assembly 132 receives the door opening command, and pushes the rotating rod 140 to the first position, the drive assembly 132 separates from the spring 152. The spring 152 is no longer squeezed by the drive assembly 132 and returns to its natural, unforced state. At this time, the spring 152 separates from the first trigger point 151, the first switch 150 is not triggered, the monitoring circuit is turned on, the cooking assembly is short-circuited, and the cooking assembly cannot operate.
[0107] By providing a spring 152 in the door lock device 130, the drive assembly 132 can trigger the first switch 150 by applying pressure to the spring 152, and the drive assembly 132 can be separated from the spring 152 to prevent the first switch 150 from being triggered, thereby enabling the cooking assembly to be short-circuited or powered on depending on the opening and closing state of the door 120.
[0108] In some embodiments, optionally, such as Figure 5 and Figure 6 As shown, the push rod 170 includes: a pressing section 171; and a clearance section 172 connected to the pressing section 171, the diameter of the clearance section 172 being smaller than the diameter of the pressing section 171; wherein, the second switch member 160 has a second trigger point 161, when the door 120 closes the box 110, the pressing section 171 presses the second trigger point 161, and when the door 120 opens the box 110, the clearance section 172 moves to the position of the second trigger point 161, and the clearance section 172 avoids the second trigger point 161.
[0109] In this embodiment, the structure of the push rod 170 is defined. The push rod 170 is a multi-segment variable diameter structure, including a pressing segment 171 and a yielding segment 172. The pressing segment 171 is used to trigger the second switch 160, and the yielding segment 172 is used to restore the second switch 160 to a non-triggered state. The diameter of the pressing segment 171 is larger than the diameter of the yielding segment 172. Specifically, the second switch 160 has a second trigger point 161. When the second trigger point 161 is pressed, the second switch 160 is triggered; when the second trigger point 161 is not pressed, the second switch 160 is not triggered. When the door 120 closes the housing 110, the pressing segment 171 moves to the position of the second trigger point 161. Because the diameter of the pressing segment 171 is large, it can press the second trigger point 161 to trigger the second switch 160, enabling the cooking component to be powered. When the door 120 opens the housing 110, as the push rod 170 moves toward the door 120, the clearance section 172 moves to the position of the second trigger point 161. Since the diameter of the clearance section 172 is smaller than the diameter of the compression section 171, the clearance section 172 cannot contact the second trigger point 161. The second trigger point 161 is not compressed, the second switch 160 is not triggered, and the cooking component is de-energized.
[0110] By setting the push rod 170 as a multi-segment structure with different diameters, the second switch 160 can be triggered or detrimented when the push rod 170 moves, without the need for other complex structures, thus reducing the production cost of the door lock device 130.
[0111] In some embodiments, the cooking components may optionally include at least one of a heating element, a steam generator, and a microwave generator.
[0112] In this embodiment, the cooking component is defined. The cooking component includes at least one of a heating element, a steam generating device, or a microwave generating device. For example, when the cooking appliance 100 is a microwave oven, the cooking component includes a microwave generating device; when the cooking appliance 100 is a steam oven, the cooking component includes a heating element and a steam generating device.
[0113] In some embodiments, optionally, such as Figure 6 As shown, the drive assembly 132 includes: a motor 133 mounted on a bracket 131; and a drive member 134 mounted on the bracket 131. The motor 133 and the drive member 134 are located on opposite sides of the bracket 131, and the motor 133 drives the drive member 134 to rotate. The rotating rod 140 has a first mating surface 143, and the drive member 134 can contact the first mating surface 143.
[0114] In this embodiment, the structure of the drive assembly 132 is defined. The drive assembly 132 includes a motor 133 and a drive member 134, both of which are mounted on the bracket 131. The motor 133 is connected to the drive member 134, and when the motor 133 is running, the drive member 134 can rotate under the drive of the motor 133. The drive member 134 can be a cam. The motor 133 and the drive member 134 are respectively mounted on both sides of the bracket 131. The drive member 134, the rotating rod 140, the first switch 150, the second switch 160, and the push rod 170 are located on the same side of the bracket 131, while the motor 133 is located on the other side of the bracket 131 to avoid interference between the motor 133 and other components in the door lock device 130.
[0115] Furthermore, the rotating rod 140 has a first mating surface 143, which is used to engage with the driving member 134. The driving member 134 can contact the first mating surface 143 to push the rotating rod 140 to rotate. Specifically, when the motor 133 receives the door opening command, the motor 133 starts running, driving the driving member 134 to rotate. The driving member 134 can be a cam, with its protruding side rotating to the position of contact with the first mating surface 143. As the driving member 134 continues to rotate, it pushes the rotating rod 140 to rotate in a first direction, causing the hook 141 to separate from the hook seat 121 on the door body 120, thus unlocking the door body 120 from the box body 110. The first mating surface 143 can be a plane.
[0116] By providing a first mating surface 143 on the rotating rod 140 that mates with the driving member 134, the driving member 134 can more easily apply a thrust to the rotating rod 140, so that the rotating rod 140 is subjected to a stable force to rotate.
[0117] In some embodiments, optionally, such as Figure 6 As shown, the door lock device 130 also includes a second elastic element 173, which is installed on the push rod 170. When the door 120 closes the box 110, the second elastic element 173 is compressed. When the door 120 unlocks from the box 110, the second elastic element 173 pushes the push rod 170 to move in the direction toward the door 120.
[0118] In this embodiment, the structure of the door lock device 130 is further defined. The door lock device 130 also includes a second elastic member 173, which is used to push the push rod 170 to move. Specifically, the second elastic member 173 is mounted on the push rod 170, the push rod 170 has a boss structure, the bracket 131 has a platform for limiting the position, and the two ends of the second elastic member 173 abut against the platform on the bracket 131 and the boss on the push rod 170, respectively. When the door 120 closes the box 110, the push rod 170 is pressed by the door 120, and the door 120 pushes the push rod 170 to move in the direction toward the interior of the box 110. The second elastic member 173 is compressed, and the second elastic member 173 exerts a thrust on the push rod 170 in the direction toward the door 120. When the door 120 is unlocked from the housing 110, the second elastic element 173 pushes the push rod 170 to move in the direction toward the door 120, so that the push rod 170 can push the door 120 to open the housing 110, realizing automatic door opening. The second elastic element 173 can be a spring.
[0119] By providing a second elastic element 173 in the door lock device 130, the push rod 170 can be moved by the second elastic element 173 to realize automatic door opening.
[0120] In some embodiments, optionally, such as Figure 6 and Figure 7 As shown, when the hook body 141 is connected to the hook seat 121, the rotating rod 140 is in the third position. The door lock device 130 also includes a limiting member 137 connected to the bracket 131. The rotating rod 140 has a second mating surface 144. When the rotating rod 140 is in the third position, the limiting member 137 engages with the second mating surface 144 to prevent the rotating rod 140 from rotating in a second direction, which is opposite to the first direction.
[0121] In this embodiment, the door lock device 130 is further defined. The door lock device 130 also includes a limiting member 137, and the rotating rod 140 has a second mating surface 144 that cooperates with the limiting member 137. The cooperation between the limiting member 137 and the second mating surface 144 can achieve the stopping and limiting of the rotating rod 140. Specifically, when the hook body 141 is connected to the hook seat 121, the door body 120 and the box body 110 are locked, and the rotating rod 140 is in the third position. When the rotating rod 140 is in the third position, the limiting member 137 abuts against the second mating surface 144. The second mating surface 144 is a plane, and the limiting member 137 has a certain width. Under the action of the limiting member 137, the second mating surface 144 cannot rotate in a second direction opposite to the first direction, so that the rotating rod 140 is kept in the third position.
[0122] In some embodiments, optionally, after the door 120 is unlocked from the box 110 and the box 110 is opened, the rotating rod 140 can return to the third position. During the process of the door 120 closing the box 110, the hook 141 first contacts the hook seat 121 and moves along the surface of the hook seat 121 until the door 120 closes the box 110, the hook 141 is connected to the hook seat 121, and the rotating rod 140 rotates to the third position again.
[0123] In this embodiment, the closing process is defined. During the process of the door 120 opening the box 110, the rotating rod 140 needs to deviate from the third position to separate the hook 141 from the hook seat 121, thus unlocking the door 120 from the box 110. After the door 120 is unlocked and the box 110 is opened, the rotating rod 140 can return to the third position. When the user needs to close the door, the user pushes the door 120 towards the box 110. During the closing process, the hook 141 first contacts the hook seat 121 on the door 120. As the door 120 rotates towards the box 110, the hook 141 moves along the surface of the hook seat 121 until the door 120 closes the box 110. At this point, the hook 141 connects with the hook seat 121 to lock the door 120 to the box 110. Then, the rotating rod 140 rotates back to the third position. In this way, the door 120 and the box 110 can be automatically locked when the door is closed.
[0124] In some embodiments, optionally, such as Figure 7 , Figure 8 and Figure 9 As shown, the hook seat 121 has a guide slope 122 on the side facing the box 110, and the hook body 141 has an arc surface 145 on the side facing the door 120.
[0125] In this embodiment, the structures of the hook seat 121 and the hook body 141 are defined. The hook seat 121 has an arc surface 145 on the side facing the box 110, and a guide slope 122 on the side facing the box 110. During the process of the door 120 closing the box 110, the arc surface 145 of the hook body 141 moves along the guide slope 122 of the hook seat 121 until the hook body 141 is connected and locked with the hook seat 121. Specifically, when the door 120 closes the box 110, the door 120 rotates toward the box 110. The arc surface 145 on the hook 141 first contacts the guide slope 122 on the hook seat 121. As the door 120 continues to rotate toward the box 110, the arc surface 145 on the hook 141 slides upward along the guide slope 122 until the door 120 is closed in place. The arc surface 145 separates from the guide slope 122, and the hook 141 is locked to the hook seat 121.
[0126] The guide slope 122 has a guiding function, and the arc surface 145 also has the function of reducing friction. By setting the arc surface 145 at the end of the hook body 141 and setting the guide slope 122 on the side of the hook seat 121 facing the box 110, the friction between the hook body 141 and the hook seat 121 can be reduced through the cooperation of the guide slope 122 and the arc surface 145, so that the hook body 141 and the hook seat 121 can be connected more smoothly and the user's closing resistance can be reduced.
[0127] In some embodiments, optionally, such as Figure 7 As shown, the hook body 141 also has a pressing slope 146, which is located on the side of the arc surface 145 away from the door body 120. When the door body 120 closes the box body 110, the pressing slope 146 and the guide slope 122 form an angle.
[0128] In this embodiment, the structure of the hook 141 is further defined. The hook 141 also has a pressing slope 146, which is located on the side of the arc surface 145 facing away from the door body 120. The angle between the pressing slope 146 and the horizontal plane ranges from 55° to 70°. The guide slope 122 on the hook seat 121 has an angle with the horizontal plane, which ranges from 20° to 35°. When the door body 120 closes the box body 110, the pressing slope 146 and the guide slope 122 form an angle, which ranges from 75° to 105°. This allows the rotating rod 140 to provide a pressing force on the door body 120 toward the interior of the box body 110, which ranges from 35N to 60N.
[0129] In some embodiments, optionally, such as Figure 7 As shown, the rotating rod 140 also has a relief groove 147, which is arranged adjacent to the hook body 141 and is used to avoid the hook seat 121.
[0130] In this embodiment, the structure of the rotating rod 140 is further defined. The rotating rod 140 also has a clearance groove 147, which is disposed adjacent to the hook body 141. The clearance groove 147 is located on the side of the hook body 141 away from the door body 120, so that the hook body 141 can form a hook-shaped structure. When the hook body 141 is connected to the hook seat 121, since the hook seat 121 has a protruding structure, the protruding structure can penetrate into the clearance groove 147, and the clearance groove 147 avoids the hook seat 121. This allows the hook body 141 to be locked to the hook seat 121, so that the hook body 141 is connected to the hook seat 121.
[0131] In some embodiments, optionally, such as Figure 1 , Figure 2 , Figure 10 and Figure 11As shown, the cooking appliance 100 also includes at least two hinge devices 180, respectively installed on both sides of the door 120. The hinge devices 180 are used to rotatably connect the door 120 to the housing 110. At least one of the at least two hinge devices 180 has a damping component 181. After the push rod 170 pushes the door 120 to the first open position, the door 120 can continue to rotate under the action of gravity. When the door 120 rotates to the second open position, the damping component 181 generates rotational resistance to the door 120.
[0132] In this embodiment, the structure of the cooking appliance 100 is further defined. The cooking appliance 100 also includes at least two hinge devices 180, to which the door 120 is rotatably connected, and the hinge devices 180 can also enable the door 120 to be opened automatically. Specifically, at least two hinge devices 180 are respectively installed on both sides of the door 120 to ensure that the door 120 is subjected to balanced forces. At least one of the at least two hinge devices 180 has a damping component 181, which can generate resistance to the door 120 when the door 120 is further opened to slow down the rotation speed of the door 120.
[0133] Specifically, during the automatic opening process of the cooking appliance 100, when the door 120 rotates to the first position, the push rod 170 stops extending. At this point, the door 120 continues to rotate away from the cabinet 110 under its own gravity, and the opening angle of the door 120 continues to increase until the door 120 rotates to the second open position. In one possible embodiment, when the door 120 is in the second open position, the angle between the door 120 and the cabinet 110 is 45° to 55°. Further, when the door 120 rotates to the second position, the damping component 181 generates rotational resistance on the door 120. The door 120 continues to rotate under gravity to open the cabinet 110, but due to the effect of the damping component 181 on the door 120, the rotation speed of the door 120 slows down under the rotational resistance, thereby achieving a slow-opening effect.
[0134] In one possible embodiment, there are two hinge devices 180, which are respectively installed on both sides of the door body 120. One of the two hinge devices 180 has a damping component 181, while the other does not. This can reduce the production cost of the cooking appliance 100 while achieving a soft-opening door.
[0135] By incorporating a hinge device 180 with a damping component 181 into the cooking appliance 100, the opening speed of the door 120 can be slowed down by the damping component 181, achieving a slow-opening effect and improving the user experience. Furthermore, the push rod 170 pushes the door 120 to rotate even when the door 120 and the cabinet 110 are unlocked, eliminating the risk of door 120 deformation or glass breakage.
[0136] In some embodiments, optionally, such as Figure 1 and Figure 2 As shown, the cooking appliance 100 also includes a control panel 190, which is installed in the housing 110 and is electrically connected to the drive assembly 132.
[0137] In this embodiment, the structure of the cooking appliance 100 is further defined. The cooking appliance 100 also includes a control panel 190 for controlling the operation of the cooking appliance 100. Specifically, the control panel 190 is installed on and exposed within the housing 110, and is located on the same side as the door 120 to facilitate user input of control commands. The control panel 190 is electrically connected to the drive assembly 132. When the door 120 needs to be opened, the user inputs an opening command through the control panel 190. Upon receiving the opening command, the drive assembly 132 begins operation, pushing the rotating rod 140 to rotate in a first direction until the hook 141 separates from the hook seat 121. At this point, the door 120 is unlocked from the housing 110. Then, the push rod 170 automatically moves towards the door 120, pushing the door 120 to open the housing 110, thus achieving automatic door opening.
[0138] By setting up a control panel 190 in the cooking appliance 100, users can control the cooking appliance 100 through the control panel 190, thereby improving the user's ease of use.
[0139] In some embodiments, the cooking appliance 100 may optionally include an oven, a microwave oven, or a steam oven.
[0140] In one possible embodiment, this utility model proposes an oven (i.e., cooking appliance 100) and its automatic door opening mechanism (i.e., door lock device 130), enabling the oven to be electrically unlocked and the oven door (i.e., door body 120) to open automatically. The oven (i.e., cooking appliance 100) of this application consists of an oven body (i.e., oven cabinet 110), a control panel 190, an automatic door locking mechanism (i.e., door lock device 130), a hinge (i.e., hinge device 180), an oven door (i.e., door body 120), and a hook seat 121 on the oven door, etc. Figure 1 and Figure 2The oven shown is the one proposed in this application. The oven proposed in this application can automatically open and manually close the door. The door no longer requires a handle, resulting in a more streamlined appearance that blends seamlessly into the cabinetry. The control panel 190 integrates a door opening control button; when the user needs to open the door, they simply touch the button to issue an opening command.
[0141] The automatic door locking mechanism (i.e., door lock device 130) is generally installed on the side of the oven body (i.e., oven body 110). The automatic door locking mechanism cooperates with the hook seat 121 installed on the oven door to keep the oven in the required closed state.
[0142] Specifically, regarding the coordination between the automatic door locking mechanism and the furnace door, such as... Figure 3 As shown, in the closed state, the front end of the automatic door locking mechanism hooks onto the hook seat 121 on the oven door, so that the oven door is kept closed under an appropriate inward locking force F (about 35N to 60N), and the oven door has a good sealing condition, avoiding air leakage and microwave leakage in the oven.
[0143] Figure 4 The oven shown is in the closed state with the automatic door locking mechanism. The oven door is closed by the user manually pushing it inward. When the door is closed, the lever (i.e., the rotating rod 140) and the hook seat 121 on the oven door engage and lock, pressing the hook seat 121 and providing an inward locking force F for the oven door.
[0144] The enlarged view of the automatic door locking mechanism and the furnace door in the closed state is shown below. Figure 5 As shown. During the manual closing process, after the furnace door rotates to a certain angle, the hook seat 121 on the furnace door first contacts the lever hook head (i.e., hook body 141) of the automatic door locking mechanism. The inclined surface (i.e., guide inclined surface 122) of the hook seat 121 pushes the lever (i.e., rotating rod 140) upward, and the lever hook head (i.e., hook body 141) passes the highest point of the hook seat 121. When the furnace door is closed in place, the lever (i.e., rotating rod 140) presses down on the hook seat 121 under the action of the rear thrust, providing a suitable inward locking force F for the furnace door.
[0145] The open state of an oven with an automatic door locking mechanism is as follows: Figure 2 As shown. Upon receiving an opening command, the automatic door locking mechanism (i.e., door lock device 130) activates motor 133, which drives the cam at its end (i.e., drive element 134) to rotate. The cam then presses downward against the tail of the lever (i.e., rotating rod 140), causing the hook at the front end of the lever (i.e., hook body 141) to tilt upward, disengaging the hook from the hook seat 121 and ceasing to exert inward pressure on the furnace door. Under the combined action of gravity and the slow-opening hinge (i.e., hinge device 180 with damping component 181), the furnace door rotates outward until it opens to approximately its maximum angle of 90°. During this process, the slow-opening hinge buffers the furnace door, preventing it from opening too quickly.
[0146] The structure of an automatic door lock mechanism is as follows: Figure 6 As shown, it consists of a bracket 131, a motor 133, a cam (i.e., a drive component 134), a micro switch one (i.e., a first switch component 150), a micro switch two (i.e., a second switch component 160), a push rod 170, and a lever (i.e., a rotating rod 140), etc., with each component mounted on the bracket 131.
[0147] Motor 133 is mounted on the back of bracket 131 and passes through bracket 131. A cam (i.e., drive element 134) is mounted at the front end of the shaft of motor 133, and motor 133 drives the cam to rotate clockwise. When the door is closed, the cam triggers microswitch one (normally closed), which disconnects the monitoring circuit and prevents the heating element, steam or microwave generating circuit (i.e., cooking component) from being short-circuited, allowing it to work normally.
[0148] After receiving the door opening command, motor 133 starts to drive the cam (i.e., drive element 134) to rotate clockwise. After rotating a certain angle, it no longer triggers microswitch one (i.e., first switch element 150), the monitoring circuit is activated, and the heating element, steam or microwave generating circuit (i.e., cooking component) is short-circuited and cannot work normally. As the cam continues to rotate, the front end of the cam begins to press downward against the inclined surface (i.e., first mating surface 143) at the tail of the lever (i.e., rotating rod 140). The structure of the lever (i.e., rotating rod 140) is as follows: Figure 7 As shown. The cam overcomes the thrust of the compression spring (i.e., the first elastic element 135), causing the lever to rotate downwards (i.e., in the first direction). After rotating through a certain angle, the lever reaches its maximum angle, and the front hook (i.e., the hook body 141) lifts up, completely disengaging from the hook seat 121 on the furnace door. Subsequently, the furnace door automatically opens under the influence of gravity and the outward force of the slow-opening hinge (i.e., the hinge device 180 with damping component 181).
[0149] The push rod 170 of the automatic door locking mechanism (i.e., door lock device 130) protrudes beyond the oven body (i.e., oven cabinet 110). When the oven door (i.e., door body 120) is closed, the oven door will drive the push rod 170 to move inward (i.e. towards the inside of the oven cabinet 110). At the same time, the push rod 170 presses the second micro switch (normally open). When the oven door is closed in the correct position, the push rod 170 maintains the triggering of the second micro switch (i.e., second switch 160), so that the heating element, steam or microwave generating circuit (i.e., cooking component) is connected and can work normally. When the oven door is opened, the lever (i.e., rotating rod 140) is pressed downward by the cam (i.e., drive member 134), so that the lever hook (i.e., hook body 141) leaves the hook seat 121, and the push rod 170 returns to its original position outward, and the heating element, steam or microwave generating circuit (i.e., cooking component) is disconnected. At the same time, a thrust of about 5N to 10N is provided to the furnace door, which can rotate the furnace door outward by about 0.5° to 5°, and then open freely under the action of the furnace door's gravity and the slow-opening hinge (i.e., the hinge device 180 with damping component 181).
[0150] The lever structure (i.e., the rotating rod 140) and the hook seat 121 of the furnace door are in a cooperating relationship. In order to make the manual closing smooth, the hook head (i.e., the hook body 141) at the front end of the lever is an arc surface, which can smoothly pass over the inclined surface (i.e., the guide inclined surface 122) of the hook seat 121. The inclined surface (i.e., the extrusion inclined surface 146) at the rear of the hook head (with an angle of about 55° to 70° with the horizontal plane) and the inclined surface (with an angle of about 20° to 35° with the horizontal plane) of the furnace door hook seat 121 are in pressing contact to form an angle of about 75° to 105°, so that the lever maintains an inward extrusion force of about 35N to 60N on the furnace door when the door is closed.
[0151] The clearance groove (i.e., clearance groove 147) at the rear of the hook head is used to avoid interference with the inclined surface (i.e., guide inclined surface 122) of the hook seat 121. The second mating surface 144 of the lever engages with the limiting pin (i.e., limiting element 137) on the bracket 131 to restrict the upward rotation of the tail of the lever (i.e., restrict the rotation rod 140 to rotate in the second direction).
[0152] The spring seat (positioning element 142) at the tail of the lever (i.e., the rotating rod 140) serves as the mounting seat for the compression spring (i.e., the first elastic element 135). The compression spring is compressed, maintaining the upward push on the lever. The inclined surface (i.e., the first mating surface 143) at the tail of the lever is the inclined surface acted upon by the cam (i.e., the driving element 134). As the cam rotates with the motor 133, the cam presses against the inclined surface, allowing the lever to overcome the spring force and rotate downward (i.e., rotate in the first direction). This allows the lever hook (i.e., the hook body 141) to intermittently disengage from the hook seat 121 on the furnace door.
[0153] The structure and installation of hook seat 121 on the furnace door are as follows: Figure 8 and Figure 9 As shown. The hook seat 121 is embedded in the furnace door surface. The front end of the furnace door has an opening, allowing the lever hook of the automatic door locking mechanism to move freely in and out. The hook seat 121 has an inclined surface of about 20° to 35° (i.e., guide inclined surface 122), which allows the lever hook to slide smoothly. At the top of the inclined surface, there is an arc surface (i.e., arc surface 145) for pressing the rear inclined surface of the lever hook, so that the furnace door has a moderate inward pressing force when closed.
[0154] When the furnace door opens at an angle of 45° to 55°, the furnace door opens relatively quickly. The slow-opening hinge assembly (i.e., the hinge device 180 with damping assembly 181) is used to buffer and slow down the opening speed of the furnace door. Figure 10The image shows a vertical hinge mounted on the oven door. The hinge assembly (i.e., hinge device 180) can also be a horizontal hinge mounted on the side of the oven cavity. The slow-opening hinge assembly consists of a hinge (i.e., hinge device 180) with a damper on one side (i.e., damping assembly 181) and a hinge without a damper on the other side. This achieves a slow-opening effect at a large angle for the oven door while avoiding the high cost associated with using multiple dampers.
[0155] The various states of the slow-opening hinge when the furnace door is opened, such as Figure 12 , Figure 13 and Figure 14 As shown. The opening angles of the furnace door are θ1, θ2, and θ3, respectively, where θ1 < θ2 < θ3. Figure 12 As shown, when the furnace door opens at an angle θ1 of approximately 0° to 5°, the slow-opening hinge and the weight of the furnace door G provide a small outward force F1 to the furnace door, with F1 being approximately 5N to 10N. Figure 13 As shown, the furnace door opening angle increases to θ2, and then the slow-opening hinge rapidly opens the furnace door under the action of the outward horizontal component F2 of the furnace door's gravity G. θ2 is approximately 45° to 55°. At this time, the buffer (i.e., damping component 181) of the slow-opening hinge begins to buffer the furnace door, preventing it from opening too quickly. Figure 14 As shown, when the furnace door opening angle increases to θ3, the slow-opening hinge continues to open the furnace door under the action of the outward horizontal component F3 of the furnace door's gravity G. When the furnace door is opened to its maximum angle of approximately 88°, the buffer of the slow-opening hinge can prevent the furnace door from oscillating by more than 3°.
[0156] The oven provided in this application features a simple and effective automatic door lock mechanism, enabling the oven to open automatically. First, a motor 133 drives a cam, which pushes a lever downwards to control the automatic opening of the door hook. Compared to the original complex transmission system and high thrust, the new product has a simpler structure and lower cost. Second, the motor 133 rotates quickly, allowing the cam to rotate the lever a large angle and disengage from the hook seat 121 with only a small rotation angle, resulting in a fast response time and a more rapid door opening process compared to the original product. Third, the lever automatically disengages from the hook seat 121 and is only subjected to a small thrust (approximately 5N to 10N) from the push rod 170, allowing it to move freely outwards when the oven door is opened. Compared to the original product, there is no risk of oven door deformation or door glass shattering.
[0157] In this utility model, the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0158] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0159] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A cooking utensil, characterized in that, include: Box; A door, rotatably connected to the housing, is used to open or close the housing, and the door has a hook. A door lock device, installed on the housing, is used to lock the door to the housing. The door lock device includes: The bracket is installed on the housing; A rotating rod, hinged to the bracket, is connected to the hook seat when the door closes the box to lock the door to the box. A drive assembly, mounted on the bracket, pushes the rotating rod to rotate in a first direction after receiving an opening command. The rotating rod separates from the hook seat to unlock the door from the box. A push rod, mounted on the bracket, extends toward the door body after the rotating rod separates from the hook seat, so as to push the door body to rotate away from the box body to the first open position.
2. The cooking utensil according to claim 1, characterized in that, The rotating rod has a hook that can be connected to or separated from the hook seat.
3. The cooking utensil according to claim 2, characterized in that, The door lock device also includes: A first elastic element is installed on the bracket. One end of the first elastic element abuts against the rotating rod. When the door closes the box, the first elastic element is in a compressed state and applies a thrust to the rotating rod to keep the hook connected to the hook seat.
4. The cooking utensil according to claim 3, characterized in that, The bracket has a mounting frame for mounting the first elastic member, and the rotating rod has a positioning member, with one end of the first elastic member mounted on the positioning member.
5. The cooking utensil according to claim 2, characterized in that, The cooking appliance also includes: A cooking component, installed in the housing, is used to heat food. A monitoring circuit is electrically connected to the cooking component. When the monitoring circuit is disconnected, the cooking component is powered on. When the monitoring circuit is on, the cooking component is short-circuited. The door lock device also includes: A first switch is mounted on the bracket, and the first switch is used to control the monitoring circuit to be turned on or off. A second switch is mounted on the bracket, and the second switch is used to control the cooking assembly to be powered on or off. When the door closes the housing, the drive assembly remains in a triggered state on the first switch to disconnect the monitoring circuit, and the push rod remains in a triggered state on the second switch to enable the cooking assembly to be powered on. After the door lock device receives the door opening command, the drive assembly pushes the rotating rod to rotate sequentially to the first position and the second position in the first direction. When the rotating rod is in the first position, the drive assembly separates from the first switch to enable the monitoring circuit to conduct. When the rotating rod is in the second position, the hook body separates from the hook seat. Then, as the push rod extends in the direction toward the door, the push rod separates from the second switch, and the cooking assembly is de-energized.
6. The cooking utensil according to claim 5, characterized in that, The door lock device also includes: A spring is installed on the first switch element, which has a first trigger point. When the door closes the box, the drive assembly pushes the spring to press the first trigger point. When the drive assembly pushes the rotating rod to the first position, the drive assembly separates from the spring, and the spring separates from the first trigger point.
7. The cooking utensil according to claim 5, characterized in that, The push rod includes: Extrusion section; A clearance section is connected to the extrusion section, and the diameter of the clearance section is smaller than the diameter of the extrusion section; The second switch has a second trigger point. When the door closes the housing, the squeezing section squeezes the second trigger point. When the door opens the housing, the avoidance section moves to the position of the second trigger point and avoids the second trigger point.
8. The cooking utensil according to claim 5, characterized in that, The cooking components include at least one of a heating element, a steam generator, and a microwave generator.
9. The cooking utensil according to any one of claims 1 to 8, characterized in that, The driving component includes: The motor is mounted on the bracket; A driving component is mounted on the bracket, and the motor and the driving component are respectively located on both sides of the bracket. The motor drives the driving component to rotate. The rotating rod has a first mating surface, and the driving member can contact the first mating surface.
10. The cooking utensil according to any one of claims 1 to 8, characterized in that, The door lock device also includes: The second elastic element is installed on the push rod. When the door closes the box, the second elastic element is compressed. When the door unlocks from the box, the second elastic element pushes the push rod to move toward the door.
11. The cooking utensil according to any one of claims 2 to 8, characterized in that, When the hook body is connected to the hook seat, the rotating rod is in the third position, and the door lock device further includes: A limiting member is connected to the bracket. The rotating rod has a second mating surface. When the rotating rod is in the third position, the limiting member engages with the second mating surface to prevent the rotating rod from rotating in a second direction, which is opposite to the first direction.
12. The cooking utensil according to claim 11, characterized in that, After the door is unlocked from the box and the box is opened, the rotating rod can return to the third position. During the process of the door closing the box, the hook first contacts the hook seat and moves along the surface of the hook seat until the door closes the box, the hook connects with the hook seat, and the rotating rod rotates to the third position again.
13. The cooking utensil according to any one of claims 2 to 8, characterized in that, The hook seat has a guide slope on the side facing the box body, and the hook body has an arc surface on the side facing the door body.
14. The cooking utensil according to claim 13, characterized in that, The hook also has a squeezing ramp, which is located on the side of the arc surface away from the door body. When the door body closes the box body, the squeezing ramp and the guide ramp form an angle.
15. The cooking utensil according to any one of claims 2 to 8, characterized in that, The rotating rod also has a clearance groove, which is disposed adjacent to the hook body and is used to avoid the hook seat.
16. The cooking utensil according to any one of claims 1 to 8, characterized in that, Also includes: At least two hinge devices are respectively installed on both sides of the door body, the hinge devices are used to rotatably connect the door body to the housing, and at least one of the at least two hinge devices has a damping component; After the push rod pushes the door to the first open position, the door can continue to rotate under the action of gravity. When the door rotates to the second open position, the damping component generates rotational resistance to the door.
17. The cooking utensil according to any one of claims 1 to 8, characterized in that, Also includes: A control panel is installed in the enclosure and is electrically connected to the drive assembly.
18. The cooking utensil according to any one of claims 1 to 5, characterized in that, The cooking appliances include ovens, microwave ovens, or steam ovens.