Lock structure and cooking appliance

Abstract

The present application provides a lock structure and a cooking appliance. The lock structure comprises: a mounting member, a locking member, and a limiting member. The mounting member is connected to one of a door assembly and a cavity assembly, and the other of the door assembly or the cavity assembly is provided with a connecting part. The locking member is connected to the mounting member, and the locking member can move between a locked position and an unlocked position. In the locked position, the locking member is connected to the connecting part. In the unlocked position, the locking member is separated from the connecting part. The limiting member is connected to the mounting member. When the locking member is located in the locked position, and the limiting member operates in a first state, the limiting member is used to limit the locking member. When the limiting member operates in a second state, the limiting member releases the limitation on the locking member. When a user wants to open the cavity assembly, a two-step door opening operation must be performed before opening the cavity assembly. In one aspect, a reminder function for the user is achieved, and in another aspect, children can be prevented from mistakenly opening the cavity assembly, thus improving the safety of use of the cooking appliance.

Description

Lock structure and cooking utensils

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on July 6, 2023, with application number 2023108254433, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the technical field of food processing equipment, and in particular to a lock structure and a cooking utensil. Background Art

[0003] After cooking, users can open the door assembly directly. However, the food that has just been cooked is often very hot, which may cause burns to the user. This is especially true when children use the cooking appliance to cook food, which is more likely to cause accidents.

[0004] Application Contents

[0005] This application aims to solve at least one of the technical problems existing in the prior art.

[0006] In view of this, on the first aspect, the present application proposes a lock structure for a cooking appliance, the cooking appliance comprising a cavity assembly and a door assembly connected to each other, the lock structure comprising: a mounting member for connecting to one of the door assembly and the cavity assembly, a connecting portion being provided on the other of the door assembly or the cavity assembly; a locking member connected to the mounting member, the locking member being capable of moving between a locked position and an unlocked position, wherein the locking member is used to connect to the connecting portion in the locked position, and is separated from the connecting portion in the unlocked position; a limiting member connected to the mounting member, the locking member being located in the locked position, and the limiting member operating in a first state, the limiting member being used to limit the locking member, and the limiting member operating in a second state, the limiting member releasing the limit on the locking member.

[0007] In addition, the lock structure in the above technical solution provided by this application may also have the following additional technical features:

[0008] In some technical solutions, optionally, a plug-in portion is provided on the locking member, and the locking member is rotatably connected to the mounting member. When in the locked position, the plug-in portion is used to engage with the connecting portion, and the plug-in portion can rotate under the pull of the connecting portion to rotate the locking member to the unlocked position.

[0009] In some technical solutions, optionally, a portion to be pushed is provided on the locking member, and the portion to be pushed is used to be pushed by the connecting portion to rotate the locking member toward the locking position.

[0010] In some technical solutions, optionally, a limiting surface is provided on the first side of the plug-in part, and an inclined surface is provided on the second side of the plug-in part. The limiting surface is used to limit the connecting part. The first end of the plug-in part is away from the rotation center of the locking member. From the first end of the plug-in part to the second end of the plug-in part, the distance between the limiting surface and the inclined surface increases.

[0011] In some technical solutions, optionally, the locking structure also includes: a rotating shaft, connected to the mounting part, the locking part is provided with an axial hole, and the rotating shaft passes through the axial hole; a boss, connected to the rotating shaft, the locking part is located between the boss and the mounting part, and the locking part is provided with a limiting groove, the limiting groove is connected to the axial hole, when the boss is misaligned with the limiting groove, the boss is used to limit the locking part from disengaging from the rotating shaft, and when the boss is opposite to the limiting groove, the boss can pass through the limiting groove.

[0012] In some technical solutions, optionally, a slot is provided on one of the locking member and the limiting member, the locking member is located in the locking position, and the limiting member operates in the first state, and the other of the locking member and the limiting member is inserted into the slot.

[0013] In some technical solutions, optionally, the limiting member includes: a solenoid valve body, connected to the mounting member; an output shaft, connected to the solenoid valve body; in the first state of the solenoid valve body, the output shaft moves to a first position relative to the solenoid valve body, and the output shaft limits the locking member; in the second state, the output shaft moves to a second position, and the output shaft is separated from the locking member.

[0014] In some technical solutions, optionally, the limiting member further includes: a guide member connected to the mounting member, the guide member being provided with a guide hole, and the output shaft passing through the guide hole.

[0015] In some technical solutions, optionally, the output shaft includes: a shaft body, connected to the solenoid valve body; a first limiting portion, connected to the shaft body, the first limiting portion passes through the guide hole, and is used to limit the locking member; a second limiting portion, connected to the first limiting portion, when the output shaft is in the first position, the second limiting portion contacts the side of the guide member facing away from the locking member.

[0016] In some technical solutions, optionally, the limiter also includes: an elastic member connected to the output shaft and the solenoid valve body, when the output shaft is in the first position, the elastic member is in an elastic deformation state, and when the output shaft is in the second position, the elastic member is in an original state.

[0017] On the second aspect, the present application proposes a cooking utensil, comprising: a cavity assembly; a door assembly, the door assembly and the cavity assembly being connected in an opening and closing manner; a lock structure such as any of the above technical solutions; wherein the mounting member is arranged on one of the cavity assembly and the door assembly, and a connecting portion is provided on the other of the cavity assembly and the door assembly.

[0018] In some technical solutions, optionally, based on the installation part being provided on the cavity assembly, the connecting portion includes a door hook.

[0019] Additional aspects and advantages of the present application will become apparent in the following description or may be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0021] FIG1 shows a schematic structural diagram of a cooking utensil in an embodiment of the present application;

[0022] FIG2 shows an enlarged view of point A in FIG1 ;

[0023] FIG3 shows an exploded view of a cooking appliance according to an embodiment of the present application;

[0024] FIG4 shows an exploded view of a lock structure in an embodiment of the present application.

[0025] Reference numerals:

[0026] 100 lock structure, 110 mounting part, 120 locking part, 121 plug-in part, 122 part to be pushed, 123 limiting surface, 124 inclined surface, 125 shaft hole, 126 limiting groove, 127 slot, 130 limiting part, 131 solenoid valve body, 132 output shaft, 133 guide part, 134 guide hole, 135 shaft body, 136 first limiting part, 137 second limiting part, 138 elastic part, 140 rotating shaft, 150 boss, 200 cavity assembly, 300 door body assembly, 310 connecting part, 311 jack, 320 door seal, 330 door teeth, 340 door surface. DETAILED DESCRIPTION

[0027] In order to more clearly understand the above-mentioned objects, features and advantages of the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other in the absence of conflict.

[0028] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present application is not limited to the specific embodiments disclosed below.

[0029] The following describes a lock structure 100 and a cooking appliance provided according to some embodiments of the present application with reference to FIG. 1 to FIG. 4 .

[0030] As shown in Figures 1, 2, and 3, in an embodiment of the present application, a lock structure 100 is provided. The lock structure 100 is used for a cooking appliance. The cooking appliance includes a cavity assembly 200 and a door assembly 300 connected to each other. The lock structure 100 includes: a mounting member 110, a locking member 120, and a limiting member 130. The mounting member 110 is used to connect to one of the door assembly 300 and the cavity assembly 200. The other of the door assembly 300 and the cavity assembly 200 is provided with a connecting portion 310. The locking member 120 is connected to the mounting member 110 and can move between a locked position and an unlocked position. In the locked position, the locking member 120 is used to connect to the connecting portion 310. In the unlocked position, the locking member 120 is separated from the connecting portion 310. The limiting member 130 is connected to the mounting member 110 , the locking member 120 is in the locking position, and the limiting member 130 operates in the first state, the limiting member 130 is used to limit the locking member 120 , and the limiting member 130 operates in the second state, the limiting member 130 releases the limit on the locking member 120 .

[0031] The lock structure 100 provided in this embodiment is used in a cooking appliance, which includes a door assembly 300 and a cavity assembly 200. The mounting member 110, locking member 120, and limiting member 130 function as a child lock, assisting in connecting the door assembly 300 and the cavity assembly 200. By adding the lock structure 100 to either the door assembly 300 or the cavity assembly 200, when the door assembly 300 closes the cavity assembly 200, the lock structure 100 restricts the door assembly 300 from opening the cavity assembly 200, thereby realizing the function of a child lock.

[0032] In this embodiment, the lock structure 100 is provided on the cavity assembly 200 for exemplary description.

[0033] When opening and closing the door, the user can lock and unlock the cooking appliance by controlling the stopper 130. Specifically, when the door assembly 300 closes the cavity assembly 200, the locking member 120 is in the locked position and connected to the connecting portion 310 in the door assembly 300. At this point, the user can control the stopper 130 to switch to the first state. The stopper 130 in the first state limits the locking member 120, preventing it from moving relative to the door assembly 300. Before opening the cavity assembly 200, the stopper 130 must be switched to the second state. The stopper 130 in the second state is separated from the operating member, the locking member 120. The stopper 130 no longer limits the locking member 120, and the user can open the cavity assembly 200 by pulling the door assembly 300. Opening the cavity assembly 200 requires a two-step operation, which helps improve the safety of the cooking appliance.

[0034] In this application, a child lock structure is added to the cooking utensil. When the locking member 120 moves to the first position, the limiting member 130 limits the movement of the locking member 120. The locking member 120 limits the door body assembly 300, and the door body assembly 300 is difficult to open the cavity assembly 200, thereby keeping the door body in a locked state, and therefore the cavity assembly 200 cannot be opened.

[0035] To open the cavity assembly 200, the locking member 120 must be released from the position restraining it exerts on the door assembly 300. Therefore, the locking member 130 must first be released from the position restraining it exerts on the locking member 120. When the locking member 120 and the locking member 130 separate, the locking member 120 can move relative to the mounting member 110, thereby releasing the position restraining it exerts on the door assembly 300. Therefore, to open the door, the user must first switch the locking member 130 to the second position (the first step), and then pull the door assembly 300 to open the cavity assembly 200 (the second step). This two-step operation increases the difficulty of opening the door.

[0036] After the cooking process of the cooking appliance has finished, the temperature of the food in the cooking cavity is high. At this time, the user may be burned if they directly open the door to remove the food. Therefore, the present application uses the above-mentioned lock structure 100 to ensure that the user who wants to open the cavity assembly 200 must perform a two-step door opening operation before opening the cavity assembly 200. This not only serves as a reminder to the user, but also prevents children from accidentally opening the cavity assembly 200, greatly improving the safety of the cooking appliance.

[0037] The locking member 120 and the limiting member 130 are mounted on the mounting member 110 , so the lock structure 100 is an integral structure, which facilitates assembly of the lock structure 100 .

[0038] It should be noted that the first state and the second state refer to the operating states of the limiting member 130 .

[0039] As shown in Figure 2, in some embodiments, optionally, a plug-in portion 121 is provided on the locking member 120, and the locking member 120 is rotatably connected to the mounting member 110. When in the locked position, the plug-in portion 121 is used to engage with the connecting portion 310. The plug-in portion 121 can rotate under the pull of the connecting portion 310 to rotate the locking member 120 to the unlocking position.

[0040] The locking member 120 can rotate relative to the mounting member 110 between a locked position and an unlocked position. When the limiting member 130 is in a first state, the limiting member 130 limits the locking member 120. At this time, the locking member 120 cannot rotate relative to the mounting member 110, so that the locking member 120 can limit the door assembly 300. When the limiting member 130 is in a second state, the limiting member 130 releases the limit on the locking member 120. At this time, the locking member 120 can rotate relative to the mounting member 110, so that the locking member 120 releases the limit on the door assembly 300.

[0041] In the following embodiments, the connection portion 310 is provided on the door assembly 300 for illustrative purposes. The principle of providing the connection portion 310 on the cavity assembly 200 is the same.

[0042] When the door assembly 300 closes the cavity assembly 200, the locking member 120 is connected to the connecting portion 310. When the limiting member 130 limits the locking member 120, the locking member 120 cannot rotate relative to the mounting member 110. Therefore, the locking member 120 and the connecting portion 310 are not easily separated. At this time, even if the door assembly 300 is pulled, it is difficult to open the cavity assembly 200. When the limiting member 130 releases the limit on the locking member 120, the locking member 120 can rotate freely. When the user pulls the door assembly 300, the connecting portion 310 can pull the plug portion 121, allowing the locking member 120 to rotate under the pull of the connecting portion 310. As the locking member 120 rotates, the plug portion 121 gradually separates from the connecting portion 310. The plug portion 121 no longer limits the connecting portion 310, so that the cavity assembly 200 can be opened smoothly.

[0043] As shown in FIG. 2 , in some embodiments, optionally, a portion to be pushed 122 is provided on the locking member 120 , and the portion to be pushed 122 is configured to be pushed by the connecting portion 310 to rotate the locking member 120 toward the locking position.

[0044] During the door opening process, the plug-in part 121 is pulled by the connecting part 310 and rotates, so that the locking member 120 can be rotated to the unlocked position. When the door is closed, in order to enable the locking member 120 to limit the connecting part 310, it is necessary to ensure that the locking member 120 is in the locked position. The rotation of the locking member 120 from the unlocked position to the locked position is driven by the connecting part 310.

[0045] Specifically, a portion to be pushed 122 is provided on the locking member 120. During the door closing process, the connecting portion 310 contacts the portion to be pushed 122. As the connecting portion 310 moves, the portion to be pushed 122 is pushed by the connecting portion 310. Therefore, as the connecting portion 310 moves, the locking member 120 rotates from the unlocking position to the locking position. When the door body assembly 300 closes the cavity assembly 200, the locking member 120 just rotates to the locking position. At this time, the plug-in portion 121 is engaged with the connecting portion 310.

[0046] The pushing portion 122 is pushed by the connecting portion 310, so that the door body assembly 300 and the locking member 120 are linked. During the door closing process, the locking member 120 can be pushed and rotated to the locking position. There is no need to set up an electric drive structure to drive the locking member 120, which is conducive to simplifying the structure of the cooking appliance.

[0047] In one possible application, a socket 311 is provided on the connecting portion 310, and the plug-in portion 121 can be plugged into the socket 311. During the door opening process, the plug-in portion 121 gradually rotates out of the socket 311. During the door closing process, the movement of the connecting portion 310 and the rotation of the locking member 120 are synchronized, so that the plug-in portion 121 is gradually inserted into the socket 311.

[0048] In other embodiments, the lock structure 100 further includes a motor, and the locking member 120 is connected to the motor, and the motor is used to drive the locking member 120 to rotate between the locked position and the unlocked position.

[0049] 2 and 4 , in some embodiments, optionally, a limiting surface 123 is provided on the first side of the plug-in portion 121, and an inclined surface 124 is provided on the second side of the plug-in portion 121. The limiting surface 123 is used to limit the connecting portion 310. The first end of the plug-in portion 121 is away from the rotation center of the locking member 120. From the first end of the plug-in portion 121 to the second end of the plug-in portion 121, the distance between the limiting surface 123 and the inclined surface 124 increases.

[0050] A limiting surface 123 and an inclined surface 124 are respectively provided on two opposite sides of the plug-in part 121. When the plug-in part 121 is engaged with the connecting part 310, the limiting surface 123 limits the connecting part 310, so that the connecting part 310 is not easily separated from the plug-in part 121, thereby ensuring that the cavity assembly 200 is in a locked state.

[0051] The distance between the limiting surface 123 and the inclined surface 124 increases from the first end of the plug-in portion 121 to the second end of the plug-in portion 121. When the connecting portion 310 pulls the plug-in portion 121, the distance between the inclined surface 124 and the connecting portion 310 remains substantially unchanged, thereby ensuring a certain gap between the inclined surface 124 and the connecting portion 310, avoiding contact between the inclined surface 124 and the connecting portion 310, thereby preventing the rotation of the plug-in portion 121 and the movement of the connecting portion 310 from interfering, and ensuring the stable fit between the door assembly 300 and the lock structure 100.

[0052] As shown in conjunction with FIG. 2 and FIG. 4 , in some embodiments, the lock structure 100 optionally further includes a rotating shaft 140 and a boss 150. The rotating shaft 140 is connected to the mounting member 110. The locking member 120 is provided with an axial hole 125 through which the rotating shaft 140 passes. The boss 150 is connected to the rotating shaft 140. The locking member 120 is located between the boss 150 and the mounting member 110. The locking member 120 is provided with a limiting groove 126. The limiting groove 126 is connected to the axial hole 125. When the boss 150 and the limiting groove 126 are misaligned, the boss 150 is used to prevent the locking member 120 from disengaging from the rotating shaft 140. When the boss 150 and the limiting groove 126 are aligned, the boss 150 can pass through the limiting groove 126.

[0053] A rotating shaft 140 is provided on the mounting member 110 , and the rotating shaft 140 and the mounting member 110 can be an integrally formed structure. An axial hole 125 is machined and formed on the locking member 120 , and the rotating shaft 140 passes through the axial hole 125 , so that the locking member 120 can rotate around the rotating shaft 140 .

[0054] A boss 150 is provided on the side of the rotating shaft 140. The boss 150 and the rotating shaft 140 may be integrally formed. Specifically, a portion of the rotating shaft 140 passes through the shaft hole 125, and the boss 150 is provided on the portion of the rotating shaft 140 that passes through the shaft hole 125. Therefore, the locking member 120 is located between the boss 150 and the mounting member 110. The boss 150 can limit the locking member 120, preventing the locking member 120 from separating from the rotating shaft 140, and ensuring the stability of the connection between the locking member 120 and the rotating shaft 140.

[0055] Locking member 120 is also provided with a limiting slot 126, which communicates with shaft hole 125. When boss 150 and limiting slot 126 are misaligned, boss 150 limits locking member 120. When boss 150 and limiting slot 126 are aligned, locking member 120 can be pulled along the axial direction of rotating shaft 140, allowing boss 150 to pass through limiting slot 126, thereby achieving removal of locking member 120. The same method is used for installing locking member 120.

[0056] The boss 150 cooperates with the limiting groove 126 , which helps to improve the convenience of disassembly and assembly of the locking member 120 .

[0057] As shown in Figures 2 and 4, in some embodiments, optionally, a slot 127 is provided on one of the locking member 120 and the limiting member 130, the locking member 120 is in the locking position, and the limiting member 130 operates in the first state, and the other of the locking member 120 and the limiting member 130 is inserted into the slot 127.

[0058] When the limiting member 130 limits the locking member 120, the limiting member 130 and the locking member 120 are in a plug-in fitting relationship. For example, a slot 127 is provided on the locking member 120, and the limiting member 130 is plugged into the slot 127, thereby limiting the locking member 120. Alternatively, a slot 127 is provided on the limiting member 130, and the locking member 120 is inserted into the slot 127, which can also limit the locking member 120.

[0059] In this embodiment, the slot 127 is provided on the locking member 120. When the locking member 120 is in the locking position, the slot 127 is opposite to the limiting member 130. The limiting member 130 operates in the first state, so that a portion of the limiting member 130 is inserted into the slot 127. The limiting member 130 limits the rotation of the locking member 120.

[0060] In combination with Figures 2 and 4, in some embodiments, optionally, the limiting member 130 includes: a solenoid valve body 131 and an output shaft 132, the solenoid valve body 131 is connected to the mounting member 110, and the output shaft 132 is connected to the solenoid valve body 131. In the first state of the solenoid valve body 131, the output shaft 132 moves to a first position relative to the solenoid valve body 131, and the output shaft 132 limits the locking member 120. In the second state, the output shaft 132 moves to a second position, and the output shaft 132 is separated from the locking member 120.

[0061] In this embodiment, the position-limiting member 130 is a solenoid valve. When the solenoid valve is energized, the output shaft 132 extends from the solenoid valve body 131. When the solenoid valve is de-energized, at least a portion of the output shaft 132 is retracted into the solenoid valve body 131. In this embodiment, the solenoid valve being in the first state refers to the solenoid valve being energized, and the solenoid valve being in the second state refers to the solenoid valve being de-energized.

[0062] When the locking member 120 rotates to the locking position, the solenoid valve is energized, and the solenoid valve body 131 drives the output shaft 132 to move, so that the output shaft 132 moves to a position to limit the locking member 120. For example, the output shaft 132 is inserted into the slot 127 on the locking member 120. Since the solenoid valve is fixed on the mounting member 110, the position of the solenoid valve is not easy to change, so that the output shaft 132 limits the rotation of the locking member 120.

[0063] When the door needs to be opened, the user can control the solenoid valve to cut off the power, and the output shaft 132 is separated from the locking member 120, so that the locking member 120 can rotate freely.

[0064] In a possible application, the axial direction of the output shaft 132 extends in the direction of the plumb bob. When the solenoid valve is powered off, the output shaft 132 falls freely due to its own gravity and is gradually retracted into the solenoid valve body 131 .

[0065] In one possible application, an unlock button (physical or virtual) can be provided on the cooking appliance. When the user presses the unlock button, the solenoid valve is powered on or off. Alternatively, the user can control the power on and off of the solenoid valve through an app.

[0066] 2 and 4 , in some embodiments, optionally, the limiting member 130 further includes: a guide member 133 , the guide member 133 is connected to the mounting member 110 , a guide hole 134 is provided on the guide member 133 , and the output shaft 132 passes through the guide hole 134 .

[0067] The guide member 133 is mounted on the mounting member 110 . For example, the guide member 133 is locked to the mounting member 110 by a locking member such as a screw, so that the guide member 133 is not easily moved relative to the mounting member 110 .

[0068] The guide member 133 is provided with a guide hole 134, through which the output shaft 132 passes and is able to slide. The guide hole 134 serves to limit the output shaft 132. When the output shaft 132 limits the locking member 120, if the door assembly 300 is pulled, the connecting portion 310 will generate a pulling force on the locking member 120, causing the locking member 120 to have a tendency to rotate. At this time, the output shaft 132 will be pushed by the locking member 120. The guide hole 134 limits the output shaft 132, making it less likely to deform, thereby improving the stability of the output shaft 132 limiting the locking member 120.

[0069] The guide hole 134 can also guide the output shaft 132 , thereby ensuring that the output shaft 132 can stably cooperate with the locking member 120 , thereby improving the cooperation stability between the output shaft 132 and the locking member 120 .

[0070] As shown in conjunction with FIG. 2 and FIG. 4 , in some embodiments, the output shaft 132 optionally includes a shaft body 135, a first limiting portion 136, and a second limiting portion 137. The shaft body 135 is connected to the solenoid valve body 131, and the first limiting portion 136 is connected to the shaft body 135. The first limiting portion 136 passes through the guide hole 134 and is used to limit the position of the locking member 120. The second limiting portion 137 is connected to the first limiting portion 136. When the output shaft 132 is in the first position, the second limiting portion 137 contacts the side of the guide member 133 facing away from the locking member 120.

[0071] The shaft body 135 is connected to the solenoid valve body 131, which is used to drive the shaft body 135 to move. A first stopper 136 is connected to the shaft body 135 and can pass through and slide within the guide hole 134. A second stopper 137 is connected to the first stopper 136. Along the radial direction of the output shaft 132, the cross-sectional area of ​​the second stopper 137 is larger than that of the first stopper 136. The first stopper 136 can pass through the guide hole 134, while the second stopper 137 cannot extend into the guide hole 134. When the shaft body 135 holds the locking member 120 in position, the second stopper 137 contacts the side of the guide member 133 facing away from the locking member 120. The second stopper 137 limits the movement of the shaft body 135, preventing the first stopper 136 from excessively moving and damaging the locking member 120.

[0072] In a possible application, the first limiting portion 136 is locked to the shaft body 135 by a locking member such as a screw, and the second limiting portion 137 and the first limiting portion 136 are an integrally formed structure.

[0073] 2 and 4 , in some embodiments, optionally, the limit member 130 further includes: an elastic member 138, the elastic member 138 being connected to the output shaft 132 and the solenoid valve body 131, and when the output shaft 132 is in the first position, the elastic member 138 is in an elastically deformed state, and when the output shaft 132 is in the second position, the elastic member 138 is in its original state.

[0074] The elastic member 138 is located between the output shaft 132 and the solenoid valve body 131. When the output shaft 132 moves relative to the solenoid valve body 131, the output shaft 132 drives the elastic member 138 to undergo elastic deformation. When the solenoid valve is powered off, the elastic member 138 drives the output shaft 132 to move and reset.

[0075] Specifically, the elastic member 138 is sleeved on the output shaft 132, and the two ends of the elastic member 138 are respectively connected to the output shaft 132 and the solenoid valve body 131. When the output shaft 132 moves relative to the solenoid valve body 131, the output shaft 132 drives the first end of the elastic member 138 to move, so that the elastic member 138 is compressed. When the solenoid valve is powered off, the output shaft 132 falls freely under the action of gravity. At this time, the elastic member 138 also provides a reset thrust to the output shaft 132, which can effectively avoid the situation where the output shaft 132 is not reset due to jamming, which is beneficial to improving the working stability of the solenoid valve.

[0076] As shown in conjunction with Figures 1, 2, and 3, in an embodiment of the present application, a cooking appliance is proposed, comprising: a cavity assembly 200, a door assembly 300, and a lock structure 100 in any of the above embodiments. The door assembly 300 is connected to the cavity assembly 200 for opening and closing. The mounting member 110 is provided on one of the cavity assembly 200 and the door assembly 300. The other of the cavity assembly 200 and the door assembly 300 is provided with a connecting portion 310. By adding the lock structure 100 to one of the door assembly 300 or the cavity assembly 200, when the door assembly 300 closes the cavity assembly 200, the lock structure 100 restricts the door assembly 300 from opening the cavity assembly 200, thereby realizing the function of a child lock.

[0077] In this embodiment, the lock structure 100 is provided on the cavity assembly 200 for exemplary description.

[0078] When opening and closing the door, the user can lock and unlock the cooking appliance by controlling the stopper 130. Specifically, when the door assembly 300 closes the cavity assembly 200, the locking member 120 is in the locked position and connected to the connecting portion 310 in the door assembly 300. At this point, the user can control the stopper 130 to switch to the first state. The stopper 130 in the first state limits the locking member 120, preventing it from moving relative to the door assembly 300. Before opening the cavity assembly 200, the stopper 130 must be switched to the second state. The stopper 130 in the second state is separated from the operating member, the locking member 120. The stopper 130 no longer limits the locking member 120, and the user can open the cavity assembly 200 by pulling the door assembly 300. Opening the cavity assembly 200 requires a two-step operation, which helps improve the safety of the cooking appliance.

[0079] In this application, a child lock structure is added to the cooking utensil. When the locking member 120 moves to the first position, the limiting member 130 limits the movement of the locking member 120. The locking member 120 limits the door body assembly 300, and the door body assembly 300 is difficult to open the cavity assembly 200, thereby keeping the door body in a locked state, and therefore the cavity assembly 200 cannot be opened.

[0080] To open the cavity assembly 200, the locking member 120 must be released from the position restraining it exerts on the door assembly 300. Therefore, the locking member 130 must first be released from the position restraining it exerts on the locking member 120. When the locking member 120 and the locking member 130 separate, the locking member 120 can move relative to the mounting member 110, thereby releasing the position restraining it exerts on the door assembly 300. Therefore, to open the door, the user must first switch the locking member 130 to the second position (the first step), and then pull the door assembly 300 to open the cavity assembly 200 (the second step). This two-step operation increases the difficulty of opening the door.

[0081] After the cooking process of the cooking appliance has finished, the temperature of the food in the cooking cavity is high. At this time, the user may be burned if they directly open the door to remove the food. Therefore, the present application uses the above-mentioned lock structure 100 to ensure that the user who wants to open the cavity assembly 200 must perform a two-step door opening operation before opening the cavity assembly 200. This not only serves as a reminder to the user, but also prevents children from accidentally opening the cavity assembly 200, greatly improving the safety of the cooking appliance.

[0082] The locking member 120 and the limiting member 130 are mounted on the mounting member 110 , so the lock structure 100 is an integral structure, which facilitates assembly of the lock structure 100 .

[0083] In this embodiment, the door body assembly 300 includes a door seal 320, a door tooth 330 and a door surface 340 which are connected in sequence.

[0084] In the above embodiment, based on the installation component 110 being provided on the cavity assembly 200 , the connecting portion 310 includes a door hook.

[0085] When the mounting member 110 is disposed on the cavity assembly 200 , the locking member 120 is used in conjunction with the door hook.

[0086] Specifically, the mounting member 110 is locked to the cavity assembly 200. When the door assembly 300 closes the cavity assembly 200, the locking member 120 engages with the door hook, restricting the movement of the door hook. At this time, it is difficult for the user to directly pull the door assembly 300. When the locking member 120 releases the restriction on the door hook, the user can open the cavity assembly 200 by pulling the door assembly 300.

[0087] By setting the lock structure 100 in the above embodiment on the cooking appliance, it is possible to achieve two-step door opening and one-button unlocking, which plays a convenient role in single-handed door opening. A screen can be set on the cooking appliance and the operation can be controlled through the screen, which is simple, convenient and clear.

[0088] The cooking appliance may be an induction cooker, an oven, a steam-bake combination machine, etc.

[0089] In this application, the term "plurality" refers to two or more, unless otherwise specified. Terms such as "installed," "connected," "connected," and "fixed" should be interpreted broadly. For example, "connected" can mean fixed, removable, or integrally connected; and "connected" can mean directly or indirectly through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0090] Throughout this specification, terms such as "one embodiment," "some embodiments," and "specific embodiments" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present application. In this specification, schematic representations 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 any one or more embodiments or examples.

[0091] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A lock structure, wherein: Used for a cooking utensil, the cooking utensil comprises a cavity assembly and a door assembly connected to each other, and the lock structure comprises: A mounting member, used to connect to one of the door assembly and the cavity assembly, wherein the other of the door assembly and the cavity assembly is provided with a connecting portion; a locking member connected to the mounting member, the locking member being movable between a locking position and an unlocking position, wherein in the locking position, the locking member is used to be connected to the connecting portion, and in the unlocking position, the locking member is separated from the connecting portion; A limiting member is connected to the mounting member, the locking member is located at the locking position, and when the limiting member operates in a first state, the limiting member is used to limit the locking member, and when the limiting member operates in a second state, the limiting member releases the limit on the locking member.

2. The lock structure according to claim 1, wherein: The locking member is provided with an inserting portion, and the locking member is rotatably connected to the mounting member. When in the locking position, the inserting portion is used to engage with the connecting portion. The inserting portion can rotate under the pulling of the connecting portion to rotate the locking member to the unlocking position.

3. The lock structure according to claim 1, wherein: The locking member is provided with a portion to be pushed, and the portion to be pushed is used to be pushed by the connecting portion so that the locking member rotates toward the locking position.

4. The lock structure according to claim 2, wherein: A limiting surface is provided on the first side of the plug-in part, and an inclined surface is provided on the second side of the plug-in part. The limiting surface is used to limit the connecting part. The first end of the plug-in part is away from the rotation center of the locking member. From the first end of the plug-in part to the second end of the plug-in part, the distance between the limiting surface and the inclined surface increases.

5. The lock structure according to any one of claims 1 to 4, wherein: The lock structure also includes: A rotating shaft connected to the mounting member, the locking member is provided with an axial hole, and the rotating shaft passes through the axial hole; The boss is connected to the rotating shaft, the locking member is located between the boss and the mounting member, the locking member is provided with a limiting groove, the limiting groove is communicated with the shaft hole, and when the boss is misaligned with the limiting groove, the boss is used to limit the locking member from being separated from the rotating shaft, the When the boss is opposite to the limiting groove, the boss can pass through the limiting groove.

6. The lock structure according to any one of claims 1 to 4, wherein: A slot is provided on one of the locking member and the limiting member, the locking member is located at the locking position, and the limiting member operates in a first state, and the other of the locking member and the limiting member is plugged into the slot.

7. The lock structure according to any one of claims 1 to 4, wherein: The limiting member comprises: A solenoid valve body connected to the mounting member; The output shaft is connected to the solenoid valve body. In the first state of the solenoid valve body, the output shaft moves to a first position relative to the solenoid valve body, and the output shaft limits the locking member. In the second state, the output shaft moves to a second position, and the output shaft is separated from the locking member.

8. The lock structure according to claim 7, wherein: The limiting member also includes: A guide member is connected to the mounting member, and a guide hole is provided on the guide member, and the output shaft passes through the guide hole.

9. The lock structure according to claim 8, wherein: The output shaft comprises: A shaft body connected to the solenoid valve body; A first limiting portion, connected to the shaft body, passes through the guide hole and is used to limit the locking member; The second limiting portion is connected to the first limiting portion. When the output shaft is located at the first position, the second limiting portion contacts a side of the guide member that is away from the locking member.

10. The lock structure according to claim 7, wherein: The limiting member also includes: An elastic member is connected to the output shaft and the solenoid valve body. When the output shaft is located at the first position, the elastic member is in an elastic deformation state. When the output shaft is located at the second position, the elastic member is in an original state.

11. A cooking appliance, wherein: include: Cavity assembly; A door assembly, the door assembly is connected to the cavity assembly in an opening and closing manner ； The lock structure according to any one of claims 1 to 10; Wherein, the mounting member is arranged on one of the cavity assembly and the door assembly, and the connecting portion is provided on the other of the cavity assembly and the door assembly.

12. The cooking appliance according to claim 11, wherein Based on the fact that the mounting member is arranged on the cavity assembly, the connecting portion includes a door hook.

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