WO2025039377A1 - Door assembly for cooking utensil, and cooking utensil - Google Patents

Abstract

A door assembly for a cooking utensil (10), and the cooking utensil (10), relating to the technical field of household appliances. The door assembly for the cooking utensil (10) comprises a door body (200), locking hooks (300), a handle (220), and an operating member (400). A handle seat (210) is installed on the door body (200). The locking hooks (300) are pivotably installed on the door body (200) between a first position and a second position around a first axis. At least part of each locking hook (300) extends from a back plate of the door body (200), the locking hook (300) is adapted to be locked with a main body (100) of the cooking utensil (10) when in the first position, and the locking hook (300) is adapted to be unlocked from the main body (100) of the cooking utensil (10) when in the second position. The handle (220) is mounted on the handle seat (210). The operating member (400) is pivotably mounted on the handle (220) around a second axis. One of the operating member (400) and the locking hooks (300) passes through the handle seat (210) to be coupled to another power source. Part of the operating member (400) extends out of the handle (220).

Description

Door assembly of cooking appliance and cooking appliance

CROSS-REFERENCE TO RELATED APPLICATIONS

This disclosure is based on the Chinese patent application with application number: 202311083508.8 and application date of August 24, 2023, and claims the priority of the Chinese patent application. The entire content of the Chinese patent application is hereby introduced into this disclosure as a reference.

Technical Field

The present invention belongs to the technical field of household appliances, and in particular, relates to a door assembly of a cooking appliance and the cooking appliance.

Background Art

Common cooking appliances with manual door opening are usually provided with a door opening handle. The user can open the door of the cooking appliance by simply pulling the handle, making door opening simple and convenient. However, this door opening method makes it easy for children to open the door of the cooking appliance without adult supervision, thereby posing the risk of being scalded by the high-temperature food inside or putting dangerous items into the cooking appliance.

Summary of the invention

The present disclosure aims to solve at least one of the technical problems existing in the prior art. To this end, the present disclosure proposes a door assembly of a cooking utensil and a cooking utensil, which adds a mechanical child lock structure on the basis of the original door opening system to ensure that the child lock must be released before the door pulling action is completed, so as to complete the entire door opening action, thereby preventing children from touching the heated food and being scalded after pulling open the door body, thereby helping to improve the safety and reliability of the entire cooking utensil.

In a first aspect, the present disclosure provides a door assembly of a cooking appliance, comprising:

Door body;

A handle seat, the handle seat is installed on the door body;

A lock hook, the lock hook is pivotally mounted on the door body between a first position and a second position about a first axis, at least a portion of the lock hook extends from a back plate of the door body, the lock hook is suitable for locking with the main unit of the cooking appliance when in the first position, and is suitable for unlocking with the main unit of the cooking appliance when in the second position;

A handle, the handle being mounted on the handle seat;

An operating member is pivotally mounted on the handle around a second axis, and one of the operating member and the locking hook passes through the handle seat to be connected to another power coupling, and is used to drive the locking hook to rotate from a first position to a second position, and a portion of the operating member extends from the handle for operating the operating member.

The door assembly of the cooking utensil provided in the embodiment of the present disclosure is provided by the handle seat, the lock hook, the operating member and the handle. The setting adds a mechanical child lock structure on the basis of the original door opening system to ensure that the child lock must be released before the door pulling action is completed to complete the entire door opening action, preventing children from touching the heated food and getting burned after pulling open the door, helping to improve the safety and reliability of the entire cooking appliance.

According to one embodiment of the present disclosure, the operating member includes:

an operating portion, at least a portion of which extends from the handle;

A rotating rod is pivotally mounted on the handle, connected to the operating portion, and is power-coupled with the locking hook.

According to an embodiment of the present disclosure, the rotating rod is provided with a protrusion, and the handle is provided with a stop portion, and when the rotating rod is rotated to a target position, the stop portion stops the protrusion.

According to one embodiment of the present disclosure, the handle comprises:

A first handle cover, wherein the first handle cover is provided with a stopper;

The second handle cover is installed on the front side of the first handle cover, the second handle cover is provided with a rotation groove, and the protrusion is installed in the rotation groove.

According to an embodiment of the present disclosure, the rotating rod is hinged to the locking hook and is slidably matched.

According to an embodiment of the present disclosure, one of the rotating rod and the locking hook is provided with an elongated sliding groove, and the rotating rod and the locking hook are connected via a pin shaft penetrating the sliding groove.

According to one embodiment of the present disclosure, it further includes:

A first restoring member, wherein the first restoring member is elastically connected between the rotating rod and the handle, and is used for driving the rotating rod to reset.

According to an embodiment of the present disclosure, the handle seat is provided with a guide groove, and both ends of the lock hook pass through the guide groove to be dynamically coupled with the operating member and extend out from the back side of the handle seat.

According to one embodiment of the present disclosure, the locking hook comprises:

A lock hook arm, the lock hook arm is pivotally mounted on the door body around a first axis, and one end of the lock hook arm is dynamically coupled to the operating member;

A hook body is connected to the other end of the locking hook arm and is used for locking with the host.

According to an embodiment of the present disclosure, a waist-shaped sliding groove is provided at one end of the locking hook arm, and the sliding groove is hinged and slidably matched with the handle.

According to one embodiment of the present disclosure, the locking hook further includes:

A support seat is installed on the door body, the support seat has a rotating shaft, and the locking hook is pivotally installed on the rotating shaft.

According to one embodiment of the present disclosure, it further includes:

A second reset member, wherein the second reset member is elastically connected between the lock hook and the door body. The component is used to drive the locking hook to remain in the first position.

According to one embodiment of the present disclosure, the first axis is parallel to the second axis, and the second axis is parallel to the pivot axis of the door body.

According to one embodiment of the present disclosure, the pivot axis of the door body is located at the lower frame of the door body, and the locking hook is suitable for locking the upper part of the host.

In a second aspect, the present disclosure provides a cooking appliance, the cooking appliance comprising:

A host having a cooking cavity;

As in any of the above-mentioned door assemblies, the door body of the door assembly can be installed on the host in an openable and closable manner, the lock hook is locked with the host in a first position, and is unlocked with the host in a second position.

According to one embodiment of the present disclosure, the host is provided with a locking block, and the locking hook is locked with the back side of the locking block when in the first position.

According to an embodiment of the present disclosure, a guide surface is provided on the front side of the locking block and the back side of the hook body of the locking hook.

Additional aspects and advantages of the present disclosure will be given in part in the following description and in part will be obvious from the following description or learned through practice of the present disclosure.

BRIEF DESCRIPTION OF THE DRAWINGS

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

FIG1 is a schematic diagram of a cooking device according to an embodiment of the present disclosure;

FIG2 is a second schematic diagram of the structure of the cooking utensil provided in an embodiment of the present disclosure;

FIG3 is a cross-sectional view of a door body of a door assembly of a cooking appliance provided by an embodiment of the present disclosure;

FIG4 is a second cross-sectional view of the door body of the door assembly of the cooking appliance provided in an embodiment of the present disclosure;

FIG5 is a schematic structural diagram of a lock hook, a handle, and a handle seat of a door assembly of a cooking appliance provided in an embodiment of the present disclosure;

6 is a cross-sectional view of a lock hook, a handle, and a handle seat of a door assembly of a cooking appliance provided in an embodiment of the present disclosure;

7 is a schematic structural diagram of a lock hook, a handle, an operating member, and a handle seat of a door assembly of a cooking appliance provided in an embodiment of the present disclosure;

FIG8 is a schematic structural diagram of an operating member of a door body of a door assembly of a cooking appliance provided in an embodiment of the present disclosure;

FIG9 is a schematic structural diagram of a lock hook of a door body of a door assembly of a cooking appliance provided in an embodiment of the present disclosure;

FIG. 10 is one of the cross-sectional views of the door body of the door assembly of the cooking appliance provided in the embodiment of the present disclosure.

Reference numerals:

Cooking device 10, host 100, front plate 111, locking block 112;

Door body 200, handle seat 210, first flange 211, guide groove 212, handle 220, first handle cover 221, second handle cover 222, threaded hole 223, mounting bolt 224, first spring mounting column 225, clamping ring 226, first avoidance opening 227;

The lock hook 300, the lock hook arm 310, the slide groove 311, the hook body 320, the support seat 330, the rotating shaft 331, the second reset member 340, and the pin 350;

The operating member 400 , the driving portion 410 , the rotating rod 420 , the protrusion 430 , the second spring mounting column 440 , the mounting hole 450 , the operating portion 460 , and the first resetting member 470 .

DETAILED DESCRIPTION

Embodiments of the present disclosure are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present disclosure, and cannot be understood as limiting the present disclosure.

A door assembly of a cooking appliance 10 and the cooking appliance 10 according to an embodiment of the present disclosure will be described below with reference to FIGS. 1 to 10 .

The embodiment of the present disclosure provides a door assembly of a cooking appliance 10 , as shown in FIGS. 1 to 7 , the door assembly of the cooking appliance 10 includes a door body 200 , a handle seat 210 , a lock hook 300 , a handle 220 and an operating member 400 .

As shown in FIGS. 1 to 4 , the door body 200 can be used to seal the cooking cavity to provide a closed cooking environment for food. The door body 200 can be provided with a transparent window, which can be used to observe the state of the food being cooked.

As shown in FIGS. 1 to 4 , the handle seat 210 is installed on the door body 200 .

As shown in FIGS. 1-4 , the connection method between the handle seat 210 and the door body 200 may include but is not limited to a snap connection, a threaded connection or a riveted connection, etc. For example, in some embodiments, the connection method between the handle seat 210 and the door body 200 is a threaded connection.

As shown in Figures 1 to 4, the lock hook 300 is pivotally mounted on the door body 200 between a first position and a second position around a first axis, and at least a portion of the lock hook 300 extends from the back panel of the door body 200. The lock hook 300 is suitable for locking with the main unit 100 of the cooking appliance 10 when in the first position, and is suitable for unlocking with the main unit 100 of the cooking appliance 10 when in the second position.

As shown in Figures 1 to 4, the lock hook 300 can be used to lock the door body 200 and the host 100. The lock hook 300 can be made of metal or plastic. For example, in some embodiments, the lock hook 300 is made of plastic, wherein the plastic material may include but is not limited to PP (Polypropylene), POM (Polyformaldehyde) or PC (Polycarbonate), etc.

As shown in FIGS. 1 to 4 , a portion of the lock hook 300 may be located within the door body 200 and the handle seat 210, and another portion of the lock hook 300 may pass through the back plate of the door body 200 and extend into the main unit 100 of the cooking appliance 10, thereby At least a portion of the locking hook 300 is locked with the main body 100 of the cooking appliance 10 .

As shown in Figures 1 to 4, it can be understood that the door body 200 can define an activity space for the lock hook 300, and the lock hook 300 can rotate back and forth in the activity space. The activity space may include a first position and a second position. The first position may be the position of the lock hook 300 when the door body 200 and the host 100 are locked, and the second position may be the position of the lock hook 300 when the door body 200 and the host 100 are unlocked. In other words, the lock hook 300 can rotate back and forth between the first position and the second position, thereby realizing the locking and unlocking between the door body 200 and the host 100.

As shown in FIGS. 1 to 7 , the handle 220 is installed on the handle base 210 , and the connection method between the handle 220 and the handle base 210 may include but is not limited to a snap connection, a threaded connection, or a riveted connection, etc. For example, in some embodiments, the connection method between the handle 220 and the handle base 210 is a threaded connection.

As shown in FIGS. 1 to 7 , there are two handle seats 210 , and the two handle seats 210 are arranged spaced apart, and the handle 220 is installed between the two handle seats 210 . There can be two locking hooks 300 , which can extend from the back sides of the two handle seats 210 respectively, or there can be one locking hook 300 , which can extend from the back side of one of the handle seats 210 .

As shown in Figures 6 and 7, the operating member 400 is pivotally mounted on the handle 220 around a second axis, and one of the operating member 400 and the lock hook 300 passes through the handle seat 210 to be connected to the other power coupling, which is used to drive the lock hook 300 to rotate from the first position to the second position, and a portion of the operating member 400 extends from the handle 220 for operating the operating member 400.

The handle 220 defines an inner cavity and a first escape opening 227 . The operating member 400 is pivotally mounted in the inner cavity of the handle 220 around a second axis, and a portion of the operating member 400 extends out of the first escape opening 227 .

It should be noted that the lock hook 300 structure of the present invention can be a safety lock for the cooking appliance 10, that is, the lock hook 300 is the first lock of the cooking appliance 10, and the user cannot release the first lock by directly pulling the door. The cooking appliance 10 itself has an elastic door lock, which is the second lock of the cooking appliance 10. The user can release the elastic door lock by pulling the handle 220 outwards with a smaller force.

In actual implementation, as shown in Figures 1-2 and 6-7, when the food is cooked and the door body 200 needs to be opened to take out the food, the door body 200 is in a closed state and the lock hook 300 is in the first position. The user can operate the operating member 400 to rotate the operating member 400 around the second axis, thereby driving the lock hook 300 to rotate around the first axis until the lock hook 300 reaches the second position. At this time, the first lock of the cooking appliance 10 is released, the user holds the handle 220, and can pull the door body 200 outward with a small force. As the second lock is released, the door body 200 and the main unit 100 of the cooking appliance 10 can also be unlocked accordingly.

The door assembly of the cooking appliance 10 provided in the embodiment of the present disclosure, through the arrangement of the handle seat 210, the lock hook 300, the operating member 400 and the handle 220, adds a mechanical child lock structure on the basis of the original door opening system to ensure that the child lock must be released before the door pulling action is completed, so as to complete the entire door opening action, thereby preventing children from pulling the door open. The door body 200 can prevent people from touching the heated food and getting burned, thereby helping to improve the safety and reliability of the entire cooking appliance 10.

In some embodiments, as shown in FIGS. 6-8 , the operating member 400 includes an operating portion 460 and a rotating rod 420 .

As shown in Figures 6 to 8, the rotating rod 420 can be pivotally mounted on the handle 220, the rotating rod 420 is connected to the operating part 460, and is dynamically coupled to the locking hook 300, the operating part 460 can be a rectangular structure, a semicircular structure or other shapes, the operating part 460 can be connected to the middle part of the rotating rod 420, and the operating part 460 can also be connected to both ends or other parts of the rotating rod 420.

As shown in Figures 6 to 8, the inner wall of the handle 220 is provided with multiple clamping rings 226, and the multiple clamping rings 226 are sleeved on the outer periphery of the rotating rod 420 to limit the radial movement of the rotating rod 420. The handle 220 and the clamping ring 226 have openings at the position of the operating part 460 to provide a rotation space for the operating part 460.

As shown in FIGS. 6 to 8 , at least a portion of the operating portion 460 extends from the handle 220. The operating portion 460 may partially extend from the front surface of the handle 220 or completely extend from the front surface of the handle 220. When the operating portion 460 partially extends from the handle 220, a certain distance is provided between the rotating rod 420 and the wall surface of the inner cavity of the handle 220 to reduce the friction between the rotating rod 420 and the inner wall surface of the handle 220 when the rotating rod 420 rotates around the second axis, thereby facilitating the user to operate the rotating rod 420.

As shown in Figures 6 to 8, a first avoidance opening 227 is provided on the lower side of the front surface of the handle 220, and the operating part 460 extends out from the first avoidance opening 227, and the first avoidance opening 227 can allow the operating part 460 to have a certain rotation space, that is, the cross-sectional area of the first avoidance opening 227 is larger than the cross-sectional area of the operating part 460. At this time, part of the structure inside the handle 220 is exposed from the first avoidance opening 227. The first avoidance opening 227 is set on the lower side of the front surface of the handle 220, so that the internal structure of the handle 220 exposed from the first avoidance opening 227 can face the lower side. Under normal circumstances, the user cannot see the internal structure of the handle 220 through the first avoidance opening 227 when looking at the operating part 460 from the front or above, so as to improve the overall aesthetics and neatness of the handle 220 and the door assembly.

In this embodiment, the two locking hooks 300 extend from the back sides of the two handle seats 210 respectively. In other words, the two ends of the rotating rod 420 close to the two handle seats 210 can be respectively connected to the two locking hooks 300 by power coupling. When the user rotates the operating part 460, the operating part 460 drives the rotating rod 420 to rotate around the second axis, so that the rotating rod 420 is used to provide power for the locking hook 300 to further start the rotation of the locking hook 300.

The door assembly of the cooking appliance 10 provided in the embodiment of the present disclosure, through the above-mentioned operating part 460 and the rotating rod 420, enables the operation of the first lock and the second lock to be concentrated on the handle 220, and uses the rotating rod 420 to realize power transmission, thereby greatly improving the integration of the whole machine.

In some embodiments, as shown in FIGS. 6-8 , the rotating rod 420 is provided with a protrusion 430 , and the handle 220 is provided with a stopper. When the rotating rod 420 is rotated to a target position, the stopper stops the protrusion 430 .

As shown in FIG. 6 to FIG. 8 , the protrusion 430 may be an irregular square protrusion. The protrusion 430 may be disposed on the wall surface of the rotating rod 420 and protrude radially.

It is understandable that if the rotating rod 420 is not provided with the protrusion 430 and the handle 220 is not provided with the stop portion, when the door body 200 is in the closed state and the lock hook 300 is in the first position, when the user rotates the handle 220, the lock hook 300 is driven to reach the second position to complete the unlocking. However, since there is no status prompt structure, the user uses a large force to continue to rotate the operating part 460, and the rotating rod 420 continues to press the lock hook 300, which may cause the lock hook 300 to be damaged and the child lock device to fail accordingly.

As shown in Figures 6 to 8, when the rotating rod 420 is provided with a protrusion 430 and the handle seat 210 is provided with a stop portion, when the user rotates the handle 220 to unlock, after the lock hook 300 reaches the second position from the first position, the protrusion 430 stops the stop portion, and the operating part 460, the rotating rod 420 and the lock hook 300 will not continue to rotate, that is, the lock hook 300 will not pass the second position, which plays a role in prompting the unlocking position to prevent the user from applying excessive force to damage the child lock device, thereby ensuring the reliability and practicality of the child lock structure.

In some embodiments, the handle 220 may define a rotation slot, and the rotating rod 420 may be supported in the rotation slot.

The inner wall of the handle 220 may be provided with a first flange 211 along the rotating rod 420 , and the rotating rod 420 may have a second flange protruding circumferentially, and the projections of the first flange 211 and the second flange along the axial direction of the rotating rod 420 may have an overlapping area.

In this embodiment, the inner wall of the handle 220 may be provided with two first flanges 211, and correspondingly, the first end of the rotating rod 420 may have two second flanges, and the two second flanges at the first end may be confined between the two first flanges 211 of the handle 220 to confine the rotating rod 420 in the installation position and unable to move.

The door assembly of the cooking utensil 10 provided in the embodiment of the present disclosure realizes axial limitation of the rotating rod 420 in the handle 220 through the arrangement of the first flange 211 and the second flange, reduces the movement of the rotating rod 420 along the second axis, and improves the positioning accuracy during the rotation process and the smoothness of mechanical unlocking.

In some embodiments, as shown in FIG. 6 , the handle 220 includes a first handle cover 221 and a second handle cover 222 . The first handle cover 221 is provided with a stopper. The second handle cover 222 is installed on the front side of the first handle cover 221 . The second handle cover 222 is provided with a rotation groove, and the protrusion 430 is installed in the rotation groove.

As shown in Figure 6, the first handle cover 221 is installed between the two handle seats 210, the two ends of the second handle cover 222 are respectively connected to the two handle seats 210, and the second handle cover 222 is located on the front side of the first handle cover 221, and the rotating rod 420 is located on both sides of the operating part 460 and is provided with a plurality of mounting holes 450 spaced apart, and the first handle cover 221 is provided with a mounting bolt 224 on the side facing the second handle cover 222, and the second handle cover 222 is provided with a threaded hole 223 on the side facing the first handle cover 221, and the first handle cover 221 and the second handle cover 222 are connected by the mounting bolt 224 and the threaded hole 223, and the mounting bolt 224 and the threaded hole 223 are matched and connected in the mounting hole 450.

As shown in Figures 6-8, the mounting hole 450 has a reserved space in a direction perpendicular to the second axis, that is, the inner wall surface of the mounting hole 450 is spaced apart from the outer wall surface of the threaded hole 223 in a direction perpendicular to the second axis to ensure that the rotating rod 420 can rotate, and the wall threaded hole 223 and the mounting bolt 224 limit the rotation of the rotating rod 420.

As shown in Figure 7, the inner walls at both ends of the first handle cover 221 are provided with stop parts, and the inner walls at both ends of the second handle cover 222 are provided with rotation grooves around the second axis. The protrusion 430 of the rotating rod 420 is installed in the rotation groove. When the rotating rod 420 is driven to rotate, the protrusion 430 slides along the rotating groove in the rotation groove, and when the rotating rod 420 rotates to a certain extent, the stop part stops the protrusion 430, limiting the rotating rod 420 from continuing to rotate.

By providing the rotation groove on the second handle cover 222 , a rotation space can be provided for the protrusion 430 of the rotation rod 420 , thereby improving the smoothness of the rotation of the rotation rod 420 .

In some embodiments, as shown in FIGS. 3-7 , the rotating rod 420 is hinged to the locking hook 300 and is slidably matched.

It can be understood that, as shown in Figures 3 to 7, the rotating rod 420 and the locking hook 300 can be connected through the same rotating node. When the rotating rod 420 rotates, power is transmitted to the locking hook 300 through the rotating node, driving the end of the locking hook 300 connected to the rotating rod 420 to start rotating. At the same time, during the rotation process, the locking hook 300 can slide relative to the rotating rod 420.

The door assembly of the cooking utensil 10 provided in the embodiment of the present disclosure realizes the driving process of the rotating rod 420 on the locking hook 300 through the design of the above-mentioned hinged and sliding cooperation between the rotating rod 420 and the locking hook 300, and gradually lifts the end of the locking hook 300 hinged to the rotating rod 420 through the hinge point, thereby realizing the unlocking of the first lock, simplifying the overall structure of the locking hook 300 and the rotating rod 420, and reducing the difficulty of assembly.

In some embodiments, as shown in FIG. 3 , FIG. 4 and FIG. 9 , a long sliding groove 311 is provided in one of the rotating rod 420 and the locking hook 300 , and the rotating rod 420 and the locking hook 300 are connected via a pin shaft 350 penetrating the sliding groove 311 .

As shown in FIG. 3 , FIG. 4 and FIG. 9 , the pin shaft 350 may be a pressure rod structure or a screw structure. For example, in some embodiments, the pin shaft 350 is a pressure rod structure.

It can be understood that the rotating rod 420 and the lock hook 300 can be hinged by the pin 350, and the rotating rod 420 and the lock hook 300 can slide relative to each other by the pin 350 cooperating with the slide groove 311. The rotating rod 420 can be provided with a long slide groove 311, and the pin 350 can slide along the slide groove 311 located on the rotating rod 420, or the lock hook 300 can be provided with a long slide groove 311, and the pin 350 can slide along the slide groove 311 located on the lock hook 300.

In this embodiment, the lock hook 300 may be provided with an elongated slide groove 311. The rotating rod 420 rotates, and power is transmitted to the lock hook 300 through the pin shaft 350, driving the lock hook 300 to rotate. During the rotation process, the position of the slide groove 311 located at the lock hook 300 is constantly changing, so that the pin shaft 350 slides along the elongated slide groove 311.

The door assembly of the cooking utensil 10 provided in the embodiment of the present disclosure realizes the hinged connection and sliding cooperation between the rotating rod 420 and the locking hook 300 through the arrangement of the above-mentioned long strip slide groove 311 and the pin shaft 350, and has high positioning accuracy and less wear during the rotation and sliding process, thereby improving the durability of components.

In some embodiments, as shown in FIG. 7 , a first restoring member 470 is further included. The first restoring member 470 is elastically connected between the rotating rod 420 and the handle 220 . The first restoring member 470 is used to drive the rotating rod 420 to reset.

As shown in FIG. 7 , both ends of the handle 220 are provided with a first spring mounting column 225, and both ends of the rotating rod 420 are provided with a first spring mounting column 225. Both ends of the first return member 470 are respectively sleeved on the outside of the first spring mounting column 225 and the second spring mounting column 440, and the first return member 470 is staggered with the second axis.

As shown in Figure 7, the first return member 470 can be a tension spring, a compression spring or other types of elastic members. If the first return member 470 is a compression spring, the first return member 470 is installed on the side of the rotating rod 420 that rotates upward; if the first return member 470 is a tension spring, the first return member 470 is installed on the side of the rotating rod 420 that rotates downward.

During the actual implementation process, when the user drives the operating part 460 to rotate the operating member 400, if the first return member 470 is a compression spring, the first return member 470 is compressed under the rotation of the rotating rod 420. After the user releases the operating part 460, the pressure applied to the operating member 400 disappears, and the rotating rod 420 rotates in the opposite direction under the action of the rebound force of the first return member 470 until the rotating rod 420 rotates to the initial position; if the first return member 470 is a tension spring, the first return member 470 is extended under the rotation of the rotating rod 420. After the user releases the operating part 460, the pressure applied to the operating member 400 disappears, and the rotating rod 420 rotates in the opposite direction under the action of the first return member 470 until the rotating rod 420 rotates to the initial position.

The door assembly of the cooking utensil 10 provided in the embodiment of the present disclosure, through the provision of the above-mentioned first reset member 470, allows the operating member 400 to automatically return to the initial position after the user releases the operating portion 460. The first reset member 470 is not easy to fall off and is durable. At the same time, it has a simple structure, a single assembly part, and a low processing accuracy requirement, which is easy to install.

In some embodiments, as shown in FIGS. 6 , 7 and 10 , the handle base 210 is provided with a guide groove 212 , and both ends of the lock hook 300 pass through the guide groove 212 to be dynamically coupled with the operating member 400 and extend from the back side of the handle base 210 .

In this embodiment, both handle seats 210 can be provided with guide grooves 212, and the guide grooves 212 can be clearance-matched with the lock hook 300. One end of the lock hook 300 is dynamically connected to the rotating rod 420, and the other end of the lock hook 300 is locked with the main unit 100. At least parts of the two lock hooks 300 are respectively located in the two handle seats 210, and other parts of the lock hooks 300 pass through the guide grooves 212, penetrate the door body 200, and finally extend from the back panel of the door body 200.

The door assembly of the cooking utensil 10 provided in the embodiment of the present disclosure realizes the assembly of the lock hook 300 in the handle seat 210 through the setting of the above-mentioned guide groove 212, ensuring that the lock hook 300 will not shake at will and interfere with other components during rotation. At the same time, the guide groove 212 does not completely lock the position of the lock hook 300, making the entire child lock structure more flexible during operation and more convenient for users to operate.

In some embodiments, as shown in FIGS. 1-7 and 9 , the locking hook 300 includes a locking hook arm 310 and a hook body 320 .

As shown in Figures 1-7 and 10, the lock hook arm 310 can be pivotally mounted on the door body 200 around a first axis, and one end of the lock hook arm 310 can be dynamically coupled to the operating member 400; the hook body 320 can be connected to the other end of the lock hook arm 310, and the hook body 320 can be used to lock with the host 100.

In actual implementation, the hook body 320 can face upward, and the user can rotate the handle 220, and the handle 220 rotates around the second axis, thereby driving one end of the lock hook 300 that is power-coupled with the handle 220 to lift, and the lock hook arm 310 rotates around the first axis, driving the hook body 320 connected to the other end of the lock hook arm 310 to rotate downward and slowly detach from the host 100, until the lock hook 300 reaches the second position, at which time the first lock of the cooking appliance 10 is released, and the user holds the handle 220 and The door body 200 can be pulled outward with a relatively small force, and as the second lock is released, the door body 200 and the main unit 100 of the cooking appliance 10 can also be unlocked accordingly.

The door assembly of the cooking utensil 10 provided in the embodiment of the present disclosure realizes the power connection between the lock hook 300 and the operating member 400 and the locking with the host 100 through the arrangement of the above-mentioned lock hook arm 310 and the hook body 320. The structure layout is reasonable and the functional division is clear. Under the premise of not affecting the normal locking and unlocking functions of the lock hook 300, the whole machine tends to be lightweight and small.

In some embodiments, as shown in FIG. 3 , FIG. 4 and FIG. 9 , a waist-shaped slide groove 311 is provided at one end of the lock hook arm 310 , and the slide groove 311 is hinged and slidably matched with the handle 220 .

In actual implementation, the user rotates the operating part 460 to rotate the rotating rod 420, and the power is transmitted to the locking hook 300 through the pin shaft 350, driving one end of the locking hook 300 that is power-coupled with the rotating rod 420 to start rotating. During the rotation process, since the pin shaft 350 and the rotating axis of the locking hook 300 are not in the same straight line, the pin shaft 350 slides along the waist-shaped slide groove 311 to compensate for the tolerance between different rotation trajectories.

The door assembly of the cooking utensil 10 provided in the embodiment of the present disclosure, through the setting of the waist-shaped slide groove 311 mentioned above, cooperates with the transmission function of the pin shaft 350, facilitates the appropriate adjustment of the positioning size during use, and at the same time compensates for the displacement tolerance of the pin shaft 350 and the rotating shaft of the lock hook 300 itself during relative rotation.

In some embodiments, as shown in FIG. 9 , the lock hook 300 further includes a support base 330 , which is mounted on the door body 200 . The support base 330 has a rotating shaft 331 , and the lock hook 300 is pivotally mounted on the rotating shaft 331 .

As shown in FIG. 9 , the support base 330 may be installed on the door body 200 , the support base 330 may have a rotating shaft 331 , and the locking hook 300 may be pivotally installed on the rotating shaft 331 .

As shown in Figure 9, the locking hook 300 can be fixedly connected to the door body 200 via a support seat 330, wherein the method of fixing the support seat 330 and the door body 200 includes but is not limited to bolt connection, riveting or snap connection, etc. For example, in some embodiments, the method of fixing the support seat 330 and the door body 200 is bolt connection.

In this embodiment, as shown in Figures 3 and 4, the support seat 330 can be fixed in the door body 200, the support seat 330 can be installed on the side of the lock hook arm 310 close to the handle 220, and the rotating shaft 331 of the support seat 330 can pass through the lock hook arm 310, and the lock hook 300 can rotate around the rotating shaft 331 after being driven.

The door assembly of the cooking utensil 10 provided in the embodiment of the present disclosure realizes the installation of the lock hook 300 on the door body 200 and the fixed assembly of the rotating shaft 331 through the setting of the above-mentioned support base 330, ensuring that the lock hook 300 performs guided rotation after being driven, making the rotation process of the lock hook 300 more stable, and improving the stability of the entire child lock structure.

In some embodiments, as shown in Figures 3-5, 7, and 9, the door assembly of the cooking appliance 10 also includes a second reset member 340, which is elastically connected between the lock hook 300 and the door body 200, and is used to drive the lock hook 300 to remain in the first position.

As shown in FIG. 3-FIG. 5, FIG. 7, and FIG. 9, the lock hook 300 may be provided with a spring column, and the second reset member 340 may be sleeved. The second reset member 340 can be compressed between the lock hook 300 and the door body 200 , and the elastic force of the second reset member 340 can keep the lock hook 300 and the host 100 in a locked state.

The second restoring member 340 may be a spring or an elastic rubber sleeve, which is not limited here.

In actual implementation, when the user rotates the operating part 460, the lock hook 300 can be rotated from the first position to the second position. During this process, the second reset member 340 is continuously compressed, and the elastic force applied by the second reset member 340 to the lock hook 300 is continuously increased, until the lock hook 300 overcomes the elastic force and slides to the second position. At this time, the first lock of the cooking appliance 10 is released, and the user can pull the handle 220 to open the door body 200, thereby unlocking the second lock of the cooking appliance 10.

After opening the door, the user can release the operating part 460. After the manpower applied to the lock hook 300 to overcome the elastic force disappears, the lock hook 300 can rotate from the second position to the first position. During this process, the second reset member 340 is continuously shortened, and the elastic force applied by the second reset member 340 to the lock hook 300 is continuously reduced until the lock hook 300 returns to the first position. When the user needs to close the door body 200, based on the design of the elastic connection, the user can directly hold the handle 220 and push the door body 200 toward the host 100 until the lock hook 300 and the host 100 are locked again, that is, the user's door closing action can realize the automatic locking of the child lock.

The door assembly of the cooking utensil 10 provided in the embodiment of the present disclosure, through the provision of the above-mentioned second reset member 340, allows the lock hook 300 to automatically return to the first position after the user releases the operating part 460. The second reset member 340 is not easy to fall off and is durable. At the same time, it has a simple structure, a single assembly part, and a low processing accuracy requirement, which is easy to install.

In some embodiments, as shown in FIGS. 1-7 , the first axis is parallel to the second axis, and the second axis is parallel to the pivot axis of the door body 200 .

In this embodiment, the pivot axis can be a rotating axis between the door body 200 and the main unit 100. During the unlocking process of the door body 200, the user rotates the operating member 400 around the second axis, with the upper end of the operating member 400 facing the user and the lower end rotating toward the cooking cavity. The operating member 400 can drive the lock hook 300 to rotate around the first axis until the lock hook 300 rotates from the first position to the second position, and the child lock structure is unlocked. At this time, the handle 220 is pulled and the door body 200 can rotate around the pivot axis.

It should be noted that, when the door assembly is a drop-down door, the first axis and the second axis are both in horizontal directions; when the door assembly is a side-sliding door, the first axis and the second axis are both in vertical directions.

The door assembly of the cooking utensil 10 provided in the embodiment of the present disclosure, through the setting of the rotation direction of the above-mentioned locking hook 300, allows the locking hook 300 to rotate back and forth in a direction perpendicular to the pivot axis, and the initial unlocking can be completed by rotating the handle 220, thereby reducing the difficulty of operation for the user; at the same time, the overall structure has high cyclic strength and strong durability, thereby extending the service life.

In some embodiments, as shown in FIGS. 1-4 , the pivot axis of the door body 200 is located at the lower frame of the door body 200 , and the lock hook 300 is suitable for locking the upper part of the host 100 .

In some embodiments, when the food is cooked and the door 200 needs to be opened to take out the food, the user can rotate the operating part 460, the operating part 460 rotates downward and drives the rotating rod 420 to rotate in the same direction, and the rotating rod 420 can drive the locking hook 300 to rotate in the left and right directions until the locking hook 300 rotates from the first position to the second position. The first lock of the cooking appliance 10 is released, and the user holds the handle 220 and pulls the door body 200 with a small force. The upper frame of the door body 200 can be separated from the main unit 100 of the cooking appliance 10, and the upper frame of the door body 200 can be rotated downward around the pivot axis. As the second lock is released, the door body 200 and the main unit 100 of the cooking appliance 10 can also be unlocked accordingly.

In other embodiments, the pivot axis of the door body 200 can be located at the left frame or the right frame of the door body 200. The user can rotate the operating part 460, and the operating part 460 can drive the lock hook 300 to rotate in the up and down directions until the lock hook 300 rotates from the initial position to the unlocked position. At this time, the first lock of the cooking appliance 10 is released, the user holds the handle 220 and pulls the door body 200 with a small force, and the door body 200 rotates to the left or right around the pivot axis. As the second lock is released, the door body 200 and the main unit 100 of the cooking appliance 10 can also be unlocked accordingly.

The door assembly of the cooking utensil 10 provided in the embodiment of the present disclosure, through the unlocking structure design of the lower-opening door and the method of providing a lock on the opposite side of the pivot axis, makes the entire cooking utensil 10 occupy a smaller space, improves the volume utilization rate, and facilitates the overall layout; at the same time, the pull-down door body 200 can be used as a transition for freshly cooked hot food, making it convenient for users to take and put food, thereby optimizing the overall machine experience.

As shown in FIGS. 1 to 4 , the present disclosure also discloses a cooking appliance 10 .

In some embodiments, the cooking appliance 10 includes: a host 100 and any one of the door assemblies described above.

As shown in FIGS. 1 to 4 , the host 100 has a cooking cavity.

As shown in FIGS. 1-4 , the host 100 can be used to cook food through temperature control and time control. The host 100 may include an inner cavity and an outer cover. The inner cavity may define a cooking cavity, and the cooking cavity may serve as a container and cooperate with a door assembly to provide a closed environment for food.

As shown in Figures 1 to 4, the door body 200 of the door assembly can be installed on the main unit 100 in an openable and closable manner. The lock hook 300 is locked with the main unit 100 of the cooking appliance 10 in the first position, and is unlocked with the main unit 100 of the cooking appliance 10 in the second position.

It should be noted that the cooking utensil 10 may include but is not limited to a microwave oven, an oven, or a steam-bake-in-one machine, etc. For example, in some embodiments, as shown in FIGS. 1-4 , the cooking utensil 10 is a microwave oven.

In actual implementation, the user can put the food to be cooked into the cooking cavity. After the food is cooked, the user can rotate the operating part 400 to make the lock hook 300 rotate around the first axis from the first position until the lock hook 300 reaches the second position. At this time, the first lock of the cooking appliance 10 is released, and the user holds the handle 220 and pulls the door body 200 outward with a small force. As the second lock is released, the door body 200 and the main unit 100 can also be unlocked accordingly. The user opens the door body 200 and takes out the cooked food. Then the user can directly hold the handle 220 and push the upper frame of the door body 200 toward the main unit 100 until the lock hook 300 and the main unit 100 are locked again.

The cooking appliance 10 provided in the embodiment of the present disclosure, through the arrangement of the door assembly and the use of a double-layer lock design, requires the user to complete two steps of unlocking before the door can be opened, thereby reducing the risk of children opening the door and touching the heated food and beverage and being scalded. At the same time, the child lock has a simple overall structure, is easy and quick to operate, and has low cost, which greatly improves the practicability and economy of the device.

In some embodiments, as shown in FIG. 3 and FIG. 4 , the host 100 is provided with a locking block 112 , and the locking hook 300 is locked with the back side of the locking block 112 when in the first position.

In this embodiment, a locking groove can be provided on the front plate 111 of the main unit 100, and a locking block 112 can be provided on the edge of the locking groove and on the side of the front plate 111 close to the cooking cavity. When the locking hook 300 is locked with the main unit 100, the hook body 320 can be extended into the locking groove and overlapped and locked with the locking block 112, and at this time, the locking hook 300 can be in the first position; when the locking hook 300 is unlocked with the main unit 100, the hook body 320 can be separated from the locking block 112, and at this time, the locking hook 300 can be in the second position.

The cooking utensil 10 provided in the embodiment of the present disclosure, through the setting of the above-mentioned locking block 112, utilizes the overlapping connection between the hook body 320 and the locking block 112 to achieve locking between the locking hook 300 and the door body 200, so that the connection structure is more concise and lightweight, and cost control is achieved without affecting the reliability of the child lock structure; at the same time, the locking block 112 enhances the structural strength of the locking area and improves the stability of the locking structure.

In some embodiments, as shown in FIG. 3 and FIG. 4 , the front side of the locking block 112 and the back side of the hook body 320 of the locking hook 300 are both provided with guide surfaces.

It is understandable that if the back sides of the lock block 112 and the hook body 320 are blocks without guide surfaces, when the user opens or closes the door, the edges and corners of the lock block 112 and the hook body 320 are easy to hit each other, and at this time, the hook body 320 is difficult to detach from or lock with the lock block 112.

In actual implementation, when the user needs to close the door body 200, the user can directly hold the handle 220 and push the door body 200 toward the host 100. During the locking process, the guide surface on the back of the hook body 320 stops the guide surface on the front of the lock block 112. Based on the characteristics of the inclined surface, the hook body 320 can be smoothly pushed into the host 100, that is, the front of the hook body 320 fits with the back of the lock block 112, and the lock hook 300 and the host 100 are locked again, that is, the user's door closing action can realize the automatic locking of the child lock.

The cooking utensil 10 provided in the embodiment of the present disclosure, through the setting of the above-mentioned guide surface, utilizes the characteristics of the inclined surface to minimize the interference force of the surface features of the hook body 320 and the locking block 112 during the locking and unlocking process, greatly reducing the difficulty of opening and closing the door for the user, while improving the smoothness of the operation.

In some embodiments, the door assembly may have a door hook, the front panel 111 of the host 100 may have a card slot, and the door hook may be used to engage with the card slot.

The door hook and the card slot engage with each other to realize the second lock of the door assembly. After the lock hook 300 is controlled to be unlocked, the door body 200 needs to be pulled to separate the door hook from the card slot to realize the second unlocking operation, and the door assembly will be fully opened.

In actual implementation, the door hook can be movably mounted on the door body 200 and extends toward the front panel 111 of the host 100. The hook portion of the door hook can be elastically movable in the up and down directions, and a guiding inclined surface is provided in the slot. The end of the lock hook abuts against the edge of the slot to push the door hook upward and enter the slot to engage with the slot. When opening the door assembly, first unlock the lock hook 300, then pull the door body 200, and the guide bevel in the slot applies an upward thrust to the hook of the door hook, causing the hook to move upward and gradually disengage from the slot to achieve the door opening action.

The terms "first", "second", etc. in the specification and claims of the present disclosure are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present disclosure can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally of the same type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and/or" in the specification and claims represents at least one of the connected objects, and the character "/" generally indicates that the objects associated with each other are in an "or" relationship.

In the description of the present disclosure, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present disclosure.

In the description of the present disclosure, "first feature" or "second feature" may include one or more of the features.

In the description of the present disclosure, “plurality” means two or more.

In the description of the present disclosure, a first feature being “on” or “under” a second feature may include that the first and second features are directly in contact with each other, or may include that the first and second features are not in direct contact with each other but are in contact with each other via another feature therebetween.

In the description of the present disclosure, “on”, “over” and “above” a first feature of a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

Although embodiments of the present disclosure have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present disclosure, the scope of which is defined by the claims and their equivalents.

Claims (17)

A door assembly of a cooking appliance, characterized by comprising: Door body; A handle seat, the handle seat is installed on the door body; A lock hook, the lock hook is pivotally mounted on the door body between a first position and a second position about a first axis, at least a portion of the lock hook extends from a back plate of the door body, the lock hook is suitable for locking with the main unit of the cooking appliance when in the first position, and is suitable for unlocking with the main unit of the cooking appliance when in the second position; A handle, the handle being mounted on the handle seat; An operating member is pivotally mounted on the handle around a second axis, and one of the operating member and the locking hook passes through the handle seat to be connected to another power coupling, and is used to drive the locking hook to rotate from a first position to a second position, and a portion of the operating member extends from the handle for operating the operating member. The door assembly of the cooking appliance according to claim 1, wherein the operating member comprises: an operating portion, at least a portion of which extends from the handle; A rotating rod is pivotally mounted on the handle, connected to the operating portion, and is power-coupled with the locking hook. The door assembly of the cooking appliance according to claim 2, characterized in that the rotating rod is provided with a protrusion, and the handle is provided with a stopper, and when the rotating rod is rotated to a target position, the stopper stops the protrusion. The door assembly of the cooking appliance according to claim 3, wherein the handle comprises: A first handle cover, wherein the first handle cover is provided with a stopper; The second handle cover is installed on the front side of the first handle cover, the second handle cover is provided with a rotation groove, and the protrusion is installed in the rotation groove. The door assembly of a cooking appliance according to any one of claims 2 to 4, characterized in that the rotating rod is hinged to the locking hook and is slidably matched. The door assembly of the cooking appliance according to claim 5, characterized in that one of the rotating rod and the locking hook is provided with an elongated sliding groove, and the rotating rod and the locking hook are connected via a pin shaft penetrating the sliding groove. The door assembly of the cooking appliance according to any one of claims 2 to 6, further comprising: A first restoring member, wherein the first restoring member is elastically connected between the rotating rod and the handle, and is used for driving the rotating rod to reset. The door assembly of a cooking utensil according to any one of claims 1 to 7 is characterized in that the handle seat is provided with a guide groove, both ends of the lock hook pass through the guide groove to be dynamically coupled to the operating member, and extend from the back side of the handle seat. The door assembly of a cooking appliance according to any one of claims 1 to 8, wherein the locking hook comprises: A lock hook arm, the lock hook arm is pivotally mounted on the door body around a first axis, and one end of the lock hook arm is dynamically coupled to the operating member; A hook body is connected to the other end of the locking hook arm and is used for locking with the host. The door assembly of the cooking utensil according to claim 9, characterized in that a waist-shaped slide groove is provided at one end of the lock hook arm, and the slide groove is hinged and slidably matched with the handle. The door assembly of a cooking appliance according to any one of claims 1 to 10, characterized in that the locking hook further comprises: A support seat is installed on the door body, the support seat has a rotating shaft, and the locking hook is pivotally installed on the rotating shaft. The door assembly of the cooking appliance according to any one of claims 1 to 11, characterized in that it also includes: A second restoring member, wherein the second restoring member is elastically connected between the lock hook and the door body, and the second restoring member is used for driving the lock hook to remain in the first position. The door assembly of the cooking appliance according to any one of claims 1 to 12, characterized in that the first axis is parallel to the second axis, and the second axis is parallel to the pivot axis of the door body. The door assembly of the cooking appliance according to claim 13, characterized in that the pivot axis of the door body is located at the lower frame of the door body, and the locking hook is suitable for locking the upper part of the main unit. A cooking utensil, comprising: A host having a cooking cavity; According to the door assembly as described in any one of claims 1-14, the door body of the door assembly can be installed on the host in an openable and closable manner, the lock hook is locked with the host when it is in a first position, and is unlocked with the host when it is in a second position. The cooking appliance according to claim 15, characterized in that the main unit is provided with a locking block, and the locking hook is locked with the back side of the locking block when in the first position. The cooking utensil according to claim 16, characterized in that the front side of the locking block and the back side of the hook body of the locking hook are both provided with guide surfaces.