CN117071994A

CN117071994A - Door assembly of cooking utensil and cooking utensil

Info

Publication number: CN117071994A
Application number: CN202311083526.6A
Authority: CN
Inventors: 蒙启泳; 刘涛; 李国保; 陈茂顺
Original assignee: Guangdong Midea Kitchen Appliances Manufacturing Co Ltd
Current assignee: Guangdong Midea Kitchen Appliances Manufacturing Co Ltd
Priority date: 2023-08-24
Filing date: 2023-08-24
Publication date: 2023-11-17

Abstract

The application discloses a door assembly of a cooking appliance and the cooking appliance, and belongs to the technical field of household appliances. In the door assembly of the cooking appliance: the handle seat is arranged on the door body; the locking hook is pivotally arranged on the door body around the first axis between a first position and a second position, at least part of the locking hook extends out of the backboard of the door body, the locking hook is suitable for locking with a main machine of the cooking appliance in the case of the first position, and the locking hook is suitable for unlocking with the main machine of the cooking appliance in the case of the second position; the handle is arranged on the handle seat; the operating piece is slidably arranged on the handle; the transmission piece is pivotally arranged on the handle around the second axis, the operation piece is abutted against the transmission piece, one of the transmission piece and the lock hook penetrates through the handle seat to be connected with the other power in a coupling mode, and the operation piece is used for driving the transmission piece to rotate so as to drive the lock hook to rotate from a first position to a second position. Through the arrangement of the lock hook, the operating piece and the transmission piece, the child false sliding door is prevented from being scalded, and the safety and the reliability of the whole machine are improved.

Description

Door assembly of cooking utensil and cooking utensil

Technical Field

The application belongs to the technical field of household appliances, and particularly relates to a door assembly of a cooking appliance and the cooking appliance.

Background

The cooking utensil of manual opening door commonly used is provided with the handle that opens the door generally, and the user directly pulls open the handle, can open cooking utensil's door body for open the door simple and convenient, but such mode of opening the door makes children under the circumstances that does not have the adult guardianship, opens cooking utensil's door body very easily, thereby exists the risk of being scalded by the food of inside high temperature or puts into dangerous article in the cooking utensil.

Disclosure of Invention

The present application aims to solve at least one of the technical problems existing in the prior art. Therefore, the door assembly of the cooking appliance and the cooking appliance are provided, so that the children are prevented from being scalded due to touching heated food after the door body is opened by pulling, and the safety and reliability of the whole cooking appliance are improved.

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

a door body;

the handle seat is arranged on the door body;

a latch hook pivotally mounted to the door body about a first axis between a first position and a second position, at least a portion of the latch hook extending from a back plate of the door body, the latch hook being adapted to latch with a main machine of the cooking appliance in the case of the first position, the latch hook being adapted to unlatch with the main machine of the cooking appliance in the case of the second position;

The handle is arranged on the handle seat;

the operating piece is slidably mounted on the handle;

the transmission piece is pivotally arranged on the handle around a second axis, the operation piece is stopped against the transmission piece, one of the transmission piece and the latch hook penetrates through the handle seat to be connected with the other power coupling, and the operation piece is used for driving the transmission piece to rotate so as to drive the latch hook to rotate from a first position to a second position.

According to the door assembly of the cooking utensil, through the arrangement of the lock hook, the operating piece and the transmission piece, a mechanical child lock structure is added on the basis of an original door opening system, so that the whole door opening action can be finished only by releasing the child lock before the door opening action is finished, scalding caused by touching heated food after the child opens the door body is prevented, and the safety and reliability of the whole cooking utensil are improved.

According to one embodiment of the application, the first axis is perpendicular to the second axis, one of the transmission piece and the latch hook is provided with a chute, the other is provided with a pin, the pin is in sliding fit with the chute, and the pin is rotatably connected with the chute.

According to one embodiment of the application, the operating member is provided with a first driving bevel, the transmission member is provided with a second driving bevel which is jointed with the first driving bevel, and the normal line of the first driving bevel and the normal line of the second driving bevel form an acute angle with the second axis.

According to an embodiment of the present application, the door assembly of the cooking appliance further includes:

the first reset piece is elastically connected between the transmission piece and the handle seat and used for driving the transmission piece to reset.

According to one embodiment of the application, the pull handle is provided with a rotation support, to which the transmission member is rotatably mounted, and a stop portion, which stops the transmission member in the case that the transmission member is rotated around the rotation support to a target position.

According to one embodiment of the application, the pull handle comprises:

the first handle cover is provided with the stop part;

and the second handle cover is arranged on the front surface of the first handle cover, and at least part of the operating piece extends out of the second handle cover.

According to one embodiment of the application, the handle is provided with an avoidance port, the operating member is slidably mounted in the avoidance port, the operating member is provided with a limiting boss, the limiting boss is located on the inner side of the handle, and the size of the operating member at the limiting boss is larger than the size of the avoidance port.

the second reset piece is elastically connected between the operating piece and the handle and used for driving the operating piece to reset.

According to one embodiment of the application, the transmission member and the latch hook are symmetrically arranged at both ends of the operation member.

According to one embodiment of the application, the handle seat is provided with a guide groove, and two ends of the latch hook penetrate through the guide groove to be connected with the operating piece in a power coupling mode and extend out of the back face of the handle seat.

According to one embodiment of the application, the shackle comprises:

the locking hook arm is pivotally arranged on the door body around a first axis, and one end of the locking hook arm is in power coupling connection with the operating piece;

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

According to one embodiment of the application, the shackle further comprises:

the supporting seat is arranged on the door body and is provided with a rotating shaft, and the lock hook is pivotally arranged on the rotating shaft.

The third reset piece is elastically connected between the lock hook and the door body and used for driving the lock hook to be kept at the first position.

the driving part is connected with the latch hook;

and the unlocking component is arranged on the handle seat, contacts with the driving part and is used for driving the driving part to rotate.

According to one embodiment of the application, the unlocking assembly comprises:

the nut is arranged on the handle seat;

and the unlocking bolt is in threaded connection with the nut, and the end part of the unlocking bolt is in contact with the driving part.

According to one embodiment of the application, the pivot axis of the door body is located at the lower rim of the door body, and the latch hook is adapted to latch to the upper part of the host.

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

a main body having a cooking cavity;

the door assembly is characterized in that the door body of the door assembly is arranged on the host in an openable and closable manner, the lock hook is locked with the host under the condition of a first position, and the lock hook is unlocked with the host under the condition of a second position.

According to the cooking utensil, through the arrangement of the door assembly, a double-layer lock design is utilized, a user is required to complete two-step unlocking to realize door opening, and the danger that a child is scalded when opening and touching heated food and beverage is reduced; meanwhile, the child lock is simple in integral structure, convenient and quick to operate and low in cost, and the practicability and economy of the device are greatly improved.

According to one embodiment of the application, the host is provided with a locking piece, the locking hook being locked with the back side of the locking piece in the first position.

According to one embodiment of the application, the front face of the locking piece and the back face of the hook body of the locking hook are provided with guide surfaces.

Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.

Drawings

The foregoing and/or additional aspects and advantages of the application will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

fig. 1 is one of partial structural schematic views of a door assembly of a cooking appliance according to an embodiment of the present application;

FIG. 2 is a second schematic view of a door assembly of a cooking apparatus according to an embodiment of the present application;

Fig. 3 is an assembly schematic diagram of a latch hook of a cooking appliance in a first position according to an embodiment of the present application;

fig. 4 is an assembly schematic diagram of a latch hook of a cooking appliance in a first position according to an embodiment of the present application;

fig. 5 is one of partial schematic structural views of a handle base and a handle of a cooking appliance according to an embodiment of the present application;

FIG. 6 is a second schematic view of a handle base and a handle of a cooking apparatus according to an embodiment of the present application;

FIG. 7 is an enlarged schematic view of FIG. 5A;

FIG. 8 is an enlarged schematic view of B in FIG. 6;

fig. 9 is one of assembly schematic diagrams of a handle seat, a handle, an operating member and a latch hook of the cooking apparatus according to the embodiment of the present application;

FIG. 10 is a second schematic diagram illustrating assembly of a handle holder, a handle, an operating member, and a latch hook of a cooking apparatus according to an embodiment of the present application;

FIG. 11 is one of partial cross-sectional views of a door assembly of a cooking appliance provided by an embodiment of the present application;

FIG. 12 is a second partial cross-sectional view of a door assembly of a cooking appliance according to an embodiment of the present application;

fig. 13 is a schematic structural view of a transmission member of a cooking appliance according to an embodiment of the present application;

FIG. 14 is a second schematic view of a driving member of a cooking apparatus according to an embodiment of the present application;

Fig. 15 is a schematic structural view of a latch hook and a third reset element of the cooking appliance according to the embodiment of the present application;

fig. 16 is a schematic structural view of a latch hook, a third reset element and a driving part of a cooking appliance according to an embodiment of the present application;

fig. 17 is a schematic structural view of a cooking appliance in a door-closed state according to an embodiment of the present application;

fig. 18 is a schematic structural view of a cooking appliance in a door-opened state according to an embodiment of the present application;

fig. 19 is a second schematic structural view of a cooking apparatus in a door-closed state according to an embodiment of the present application;

fig. 20 is a second schematic structural view of a cooking apparatus in a door-opened state according to an embodiment of the present application.

Reference numerals:

a cooking appliance 100, a first reset piece 101, a second reset piece 102, a third reset piece 103, a door body 110 and a driving part 190;

a handle holder 120, a guide groove 121;

the device comprises a lock hook 130, a hook body 131, a lock hook arm 132, a pin shaft 133, a supporting seat 134 and a rotating shaft 135;

a handle 140, a first handle cover 141, a rotation support 142, a stopper 143, and a second handle cover 144;

an operation member 150, a first driving inclined surface 151, a limiting boss 152;

a transmission member 160, a chute 161, a second driving ramp 162;

a main body 170, a front plate 171, a lock block 172;

Unlocking component 180, nut 181, unlocking bolt 182.

Detailed Description

Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the application.

The present application discloses a door assembly of a cooking appliance 100.

A door assembly of a cooking appliance 100 according to an embodiment of the present application is described below with reference to fig. 1 to 20.

In some embodiments, as shown in fig. 1-4, a door assembly of a cooking appliance 100 includes: the door body 110, the handle holder 120, the latch hook 130, the handle 140, the operating member 150, and the transmission member 160.

The door body 110 may be used to block the cooking cavity to provide a closed cooking environment for food, and the door body 110 may be provided with a transparent window that may be used to observe the state of the food being cooked.

The handle seat 120 is mounted to the door body 110.

The connection between the handle base 120 and the door body 110 may include, but is not limited to, a snap connection, a threaded connection, a rivet connection, etc., such as, in some embodiments, the handle base 120 is threaded with the door body 110.

The latch hook 130 is pivotally mounted to the door body 110 about a first axis parallel to the pivot axis of the door body 110, at least a portion of the latch hook 130 extending from the back plate of the door body 110, the latch hook 130 being adapted to latch with the main body 170 of the cooking appliance 100 in the first position and the latch hook 130 being adapted to unlatch with the main body 170 of the cooking appliance 100 in the second position.

The latch hook 130 may be used to lock the door body 110 and the host 170, and the latch hook 130 may be made of metal or plastic, for example, in some embodiments, the latch hook 130 is made of plastic, wherein the plastic may include, but is not limited to, PBT (Polybutylene terephthalate), PP (Polypropylene), POM (polyoxymethylene), PC (Polycarbonate), or the like.

As shown in fig. 3-4, a portion of the latch hook 130 may be located within the door body 110 and the handle seat 120, and another portion of the latch hook 130 may extend through the back plate of the door body 110 and into the main body 170 of the cooking appliance 100, such that at least a portion of the latch hook 130 is locked with the main body 170 of the cooking appliance 100.

It will be appreciated that the door 110 may define an active space of the latch hook 130, in which the latch hook 130 may rotate back and forth, and the active space may include a first position and a second position, where the latch hook 130 is in a locked state of the door 110 and the host 170, and the second position may be in a unlocked state of the door 110 and the host 170, in other words, the latch hook 130 may rotate back and forth between the first position and the second position, so as to implement locking and unlocking between the door 110 and the host 170.

The handle 140 is mounted to the handle base 120.

As shown in fig. 9-10, the pull cup 120 may include two spaced apart arrangements, the pull 140 may be mounted between the two pull cup 120, and the connection between the pull 140 and the pull cup 120 may include, but is not limited to, a snap connection, a threaded connection, a rivet connection, or the like, such as, in some embodiments, a threaded connection between the pull 140 and the pull cup 120.

The operating member 150 is slidably mounted to the pull handle 140.

As shown in fig. 1-2 and 9-12, the operation member 150 may be slidably mounted to the handle 140 in the front-rear direction, at least a portion of the operation member 150 may be located inside the handle 140, and the remaining portion of the operation member 150 may extend outside the handle 140.

The transmission member 160 is pivotally mounted to the handle 140 about a second axis, the operation member 150 abuts against the transmission member 160, one of the transmission member 160 and the latch hook 130 penetrates through the handle seat 120 to be coupled with the other power, and the operation member 150 is used for driving the transmission member 160 to rotate to drive the latch hook 130 to rotate from the first position to the second position.

The transmission member 160 may be used to transmit power between the operation member 150 and the latch hook 130, as shown in fig. 1-2 and 11-12, the transmission member 160 may be rotatably installed inside the handle 140, the transmission member 160 may be a rotating rod, one end of the transmission member 160 may abut against the operation member 150, and the other end of the transmission member 160 may be in power coupling connection with the latch hook 130.

It is to be appreciated that the transmission member 160 can extend through the pull cup 120 to be in power coupling connection with the latch hook 130, or the latch hook 130 can extend through the pull cup 120 to be in power coupling connection with the transmission member 160, such as, in some embodiments, as shown in fig. 1-4 and 11-12, the latch hook 130 can extend through the pull cup 120 to be in power coupling connection with the transmission member 160.

It should be noted that, the latch hook 130 of the present application may be a safety lock of the cooking apparatus 100, that is, the latch hook 130 is a first lock of the cooking apparatus 100, a user may not release the first lock by directly pulling a door, and the cooking apparatus 100 itself has an elastic door lock, which is a second lock of the cooking apparatus 100, and the user may release the elastic door lock by pulling the handle 140 outwards with a small force.

In actual implementation, as shown in fig. 3-4 and fig. 17-20, when the door 110 needs to be opened to take out food after cooking, the door 110 is in a closed state and the latch hook 130 is located at the first position, the user can press the operating member 150 to drive the transmission member 160 to rotate around the second axis, so as to drive the latch hook 130 to rotate around the first axis until the latch hook 130 reaches the second position, at this time, the first lock of the cooking utensil 100 is released, the user holds the handle 140, and can pull the door 110 outwards with a small force, and as the second lock is released, the door 110 and the main machine 170 of the cooking utensil 100 can be correspondingly unlocked.

According to the door assembly of the cooking appliance 100 provided by the embodiment of the application, due to the arrangement of the lock hook 130, the operation piece 150 and the transmission piece 160, a mechanical child lock structure is added on the basis of the original door opening system, so that the whole door opening action can be finished only by releasing the child lock before the door opening action is finished, the heated food is prevented from being scalded after the child opens the door body 110, and the safety and reliability of the whole cooking appliance 100 are improved.

In some embodiments, as shown in fig. 1-4 and 11-12, the first axis may be perpendicular to the second axis, one of the transmission 160 and the shackle 130 may be provided with a chute 161, the other may be provided with a pin 133, the pin 133 may be in sliding engagement with the chute 161, and the pin 133 may be rotatably connected with the chute 161.

In some embodiments, as shown in fig. 1-4 and 11-12, the transmission member 160 may be provided with a kidney-shaped chute 161, the latch hook 130 may be provided with a pin 133, the transmission member 160 rotates around the second axis, power is transmitted to the latch hook 130 through the chute 161 and the pin 133, the latch hook 130 is driven to rotate around the first axis, the position of the chute 161 located in the transmission member 160 is continuously changed during rotation, so that the pin 133 slides along the kidney-shaped chute 161, and during rotation, the pin 133 slides along the kidney-shaped chute 161 based on the fact that the first axis and the second axis are not in the same line, so as to compensate for the tolerance between different rotation tracks.

In other embodiments, the latch hook 130 may be provided with a chute 161, the transmission member 160 may be provided with a pin shaft 133, the transmission member 160 rotates around the second axis, and power is transmitted to the latch hook 130 through the chute 161 and the pin shaft 133 to drive the latch hook 130 to rotate around the first axis, and during the rotation, the position of the chute 161 located in the latch hook 130 is continuously changed, so that the pin shaft 133 slides along the chute 161.

According to the door assembly of the cooking utensil 100 provided by the embodiment of the application, through the arrangement of the chute 161 and the pin shaft 133, the rotation connection and sliding fit between the transmission member 160 and the lock hook 130 are realized, the positioning size is conveniently and properly adjusted in the use process, and the displacement tolerance caused by the fact that the first axis and the second axis are not coaxial in the relative rotation process is compensated.

In some embodiments, as shown in fig. 1-2 and 13-14, the operation member 150 may be provided with a first driving inclined surface 151, the transmission member 160 may be provided with a second driving inclined surface 162 that is attached to the first driving inclined surface 151, and the normal lines of the first driving inclined surface 151 and the second driving inclined surface 162 may form an acute angle with the second axis.

In actual implementation, as shown in fig. 1-2 and fig. 13-14, when the user opens the door, the user may press the operation member 150, so that the first driving inclined surface 151 of the operation member 150 slides backward, drives the second driving inclined surface 162 attached to the first driving inclined surface 151 to rotate downward, drives the whole transmission member 160 to rotate around the second axis, and drives the latch hook 130 to rotate around the first axis from the first position through cooperation between the pin shaft 133 and the chute 161 until the latch hook 130 reaches the second position, the first lock is released, the user holds the handle 140, and the door body 110 can be pulled outward with a smaller force, and as the second lock is released, the door body 110 and the main machine 170 of the cooking apparatus 100 can also be correspondingly unlocked.

According to the door assembly of the cooking utensil 100 provided by the embodiment of the application, through the arrangement of the first driving inclined plane 151 and the second driving inclined plane 162, the operation piece 150 drives the transmission piece 160 to rotate so as to drive the lock hook 130 to rotate and unlock, and the sliding stroke of the operation piece 150 is skillfully converted into the rotating stroke of the transmission piece 160 by utilizing the characteristics of the inclined planes, so that the overall design of the child lock structure tends to be concise and efficient, the assembly and the disassembly are easy, the assembly man-hour is saved, and the product cost is reduced.

In some embodiments, as shown in fig. 1-4, the door assembly of the cooking appliance 100 may further include: a first reset element 101.

The first restoring member 101 may be elastically coupled between the transmission member 160 and the handle base 120, and the first restoring member 101 may be used to drive the transmission member 160 to restore.

As shown in fig. 1-4 and 13-14, the transmission member 160 may be provided with a connection post, the first restoring member 101 may be sleeved on the connection post of the transmission member 160, and the first restoring member 101 may be compressed between the transmission member 160 and the handle seat 120.

The first restoring member 101 may be a spring or an elastic rubber sleeve, which is not limited herein.

In actual implementation, when the user presses the operation member 150, the transmission member 160 may rotate around the second axis, so as to drive the latch hook 130 to rotate around the first axis, during this process, the first reset member 101 is continuously compressed, the elastic force applied by the first reset member 101 to the transmission member 160 is continuously increased until the latch hook 130 slides to rotate to the second position against the elastic force, when the user releases the operation member 150, after the manpower applied to the operation member 150 against the elastic force disappears, the first reset member 101 is continuously extended, the elastic force applied by the first reset member 101 to the transmission member 160 is continuously reduced, and the transmission member 160 rotates around the second axis until the transmission member 160 returns to the initial position.

According to the door assembly of the cooking utensil 100 provided by the embodiment of the application, through the arrangement of the first resetting piece 101, the transmission piece 160 can be automatically reset after a user releases the operation piece 150, the first resetting piece 101 is not easy to fall off and durable, meanwhile, the structure is simple, the assembly part is single, the requirement on processing precision is low, and the installation is facilitated.

In some embodiments, as shown in fig. 5-8, the pull handle 140 may be provided with a rotational support 142 and a stopper 143, the transmission member 160 may be rotatably mounted to the rotational support 142, and the stopper 143 may stop the transmission member 160 in case the transmission member 160 rotates to a target position around the rotational support 142.

In some embodiments, as shown in fig. 5 and 7, the rotation support 142 may be generally cylindrical, the transmission member 160 may be sleeved on the rotation support 142, the handle 140 may be provided with a plurality of raised reinforcing ribs, the stop portion 143 may be disposed on the reinforcing ribs, and the stop portion 143 may stop the transmission member 160 when the transmission member 160 rotates around the rotation support 142 to an initial position.

In other embodiments, as shown in fig. 6 and 8, the rotation support 142 may be generally circular, the transmission member 160 may be embedded in the rotation support 142, the handle 140 may be provided with a plurality of raised ribs, the stop portion 143 may be provided on the ribs, and the stop portion 143 may be provided on the rotation support 142, where the stop portion 143 may stop the transmission member 160 when the transmission member 160 rotates to an initial position around the rotation support 142, and the stop portion 143 may stop the transmission member 160 when the transmission member 160 rotates to an unlocked position around the rotation support 142.

It will be appreciated that if the handle 140 is not provided with the stop portion 143, when the door 110 is in the closed state and the latch hook 130 is in the first position, the latch hook 130 is driven to reach the second position to complete the unlocking when the user presses the operating member 150, but the user continues to press the operating member 150 with a larger force due to no state prompting structure, and the transmission member 160 continues to press the latch hook 130, which may cause the latch hook 130 to damage the child lock device.

In the case that the handle 140 is provided with the stop portion 143, when the user presses the operating member 150 to unlock, the transmission member 160 stops against the stop portion 143 after the latch hook 130 reaches the second position from the first position, the latch hook 130 does not continue to rotate, that is, the latch hook 130 does not cross the second position, so as to play a role in prompting the unlocking position, and after the user releases the operating member 150, the transmission member 160 does not excessively rotate, so that the user applies excessive force to damage the child lock device, and the reliability and practicality of the child lock structure are ensured.

In some embodiments, as shown in fig. 5-6 and 11-12, the handle 140 includes: a first handle cover 141 and a second handle cover 144.

The first handle cover 141 may be provided with a stopper 143; the second handle cover 144 may be mounted to the front surface of the first handle cover 141, and at least a portion of the operation member 150 may protrude from the second handle cover 144.

As shown in fig. 5-6 and 11-12, the first handle cover 141 is installed between the two handle seats 120, two ends of the second handle cover 144 are respectively connected with the two handle seats 120, the second handle cover 144 is located on the front surface of the first handle cover 141, an installation cavity is defined between the first handle cover 141 and the second handle cover 144, the transmission member 160 is arranged in the installation cavity, an installation bolt is arranged on one side, facing the second handle cover 144, of the first handle cover 141, a threaded hole is arranged on one side, facing the first handle cover 141, of the second handle cover 144, a corresponding avoidance groove is formed in the transmission member 160, the first handle cover 141 and the second handle cover 144 are connected with the threaded hole through the installation bolt, and the installation bolt can penetrate the avoidance groove to be in threaded fit with the threaded hole.

The avoidance groove is reserved with redundant space during processing, namely the inner wall surface of the avoidance groove is arranged at intervals with the outer wall surface of the mounting bolt, so that the transmission member 160 can rotate, and the rotation of the transmission member 160 is prevented from being limited by the threaded hole and the mounting bolt.

As shown in fig. 5 to 6, the inner side of the first handle cover 141 is provided with a stopping portion 143, and when the operating member 150 is pressed to drive the transmission member 160 to rotate, the stopping portion 143 stops the transmission member 160 to limit the transmission member 160 to continue to rotate when the transmission member 160 rotates to a certain extent.

In some embodiments, as shown in fig. 11-12, the pull handle 140 may be provided with an evacuation port, the operation member 150 may be slidably mounted in the evacuation port, the operation member 150 may have a limit boss 152, the limit boss 152 may be located inside the pull handle 140, and the operation member 150 may have a size at the limit boss 152 that is greater than the size of the evacuation port.

The operation member 150 may have an inwardly concave operation surface, or the operation member 150 may have an outwardly convex operation surface to facilitate the user's manipulation.

It will be appreciated that if the operation member 150 is not provided with the limit boss 152, in other words, the maximum outer diameter of the operation member 150 is not greater than the maximum diameter of the escape opening, when the latch hook 130 is rotationally reset, the latch hook 130 has a certain impact speed, and considering that the transmission member 160 abuts against the operation member 150, the impact force may be transmitted to the entire operation member 150 through the transmission member 160, so that the operation member 150 is pushed out of the escape opening.

In the case that the operation member 150 is provided with the limiting boss 152, that is, the maximum outer diameter of the operation member 150 is greater than the maximum diameter of the avoiding opening, when the latch hook 130 rotates and resets, the impact force pushes the operation member 150 outwards, and at this time, the limiting boss 152 can stop against the inner wall of the second handle cover 144, so that the whole operation member 150 is limited in the avoiding opening, and the reliability and stability of the connection between the operation member 150 and the handle 140 are increased.

In some embodiments, as shown in fig. 11-12, the door assembly of the cooking appliance 100 may further include: a second reset element 102.

The second restoring member 102 may be elastically coupled between the operating member 150 and the pull 140, and the second restoring member 102 may be used to drive the operating member 150 to restore.

As shown in fig. 11 to 12, the first handle cover 141 may be provided with a connection post, the second reset element 102 may be sleeved on the connection post of the first handle cover 141, and the second reset element 102 may be compressed between the operation element 150 and the first handle cover 141.

In actual implementation, as shown in fig. 11-12, when the user presses the operation member 150, the second reset member 102 is continuously compressed, the elastic force applied to the operation member 150 by the second reset member 102 is continuously increased until the latch hook 130 rotates from the first position to the second position, at this time, the first lock of the cooking appliance 100 is released, the user may pull the handle 140 to pull the door body 110 outwards, i.e., unlock the second lock of the cooking appliance 100, after opening the door, the user may release the operation member 150, the second reset member 102 is continuously extended, and the elastic force applied to the operation member 150 by the second reset member 102 is continuously reduced until the operation member 150 returns to the initial position.

The second restoring member 102 may be a spring or an elastic rubber sleeve, etc., without limitation.

According to the door assembly of the cooking utensil 100 provided by the embodiment of the application, through the arrangement of the second reset piece 102, the operating piece 150 can automatically return to the initial position after a user releases the operating piece 150, the second reset piece 102 is not easy to fall off and is durable, meanwhile, the structure is simple, the assembly part is single, the requirement on processing precision is low, and the installation is facilitated.

In some embodiments, as shown in fig. 2, 10 and 12, the transmission member 160 and the latch hook 130 may be symmetrically disposed at both ends of the operation member 150.

In this embodiment, as shown in fig. 2, 10 and 12, the operation member 150 may be disposed at the center of the handle 140, two latch hooks 130 and transmission members 160 may be disposed at two ends of the operation member 150, respectively, and the distances from the latch hooks 130 at the two ends and the transmission members 160 to the operation member 150 are equal, that is, the arm of force at the two ends is equal, and when the user presses the operation member 150, the transmission members 160 at the two ends may be simultaneously driven to rotate about the second axis, thereby driving the latch hooks 130 at the two ends to rotate about the first axis.

According to the door assembly of the cooking utensil 100 provided by the embodiment of the application, through the symmetrical arrangement design of the child lock structures at the two ends, double locking of the two ends of the door body 110 is realized, compared with the design of locking at one end, the whole child lock structure is more firm and reliable, the torque required to bear by the door body 110 is reduced, and meanwhile, the symmetrical arrangement design maximally satisfies synchronous locking and synchronous unlocking of the child locks at the two ends, so that the stress of the whole door body 110 is more uniform, and the service life of the child lock structure is prolonged.

In some embodiments, as shown in fig. 1-6, the handle base 120 may be provided with a guide groove 121, and both ends of the latch hook 130 may penetrate the guide groove 121 to be coupled with the operation member 150 in a power coupling manner and protrude from the rear surface of the handle base 120.

In this embodiment, as shown in fig. 1-6, the guide groove 121 may be in clearance fit with the latch hook 130, one end of the latch hook 130 is connected with the driving member 160 in a power coupling manner, the other end of the latch hook 130 may be locked with the host 170, at least part of the latch hook 130 is located in the handle seat 120, and the other part of the latch hook 130 may pass through the guide groove 121 and penetrate through the door body 110 and finally protrude from the back plate of the door body 110.

According to the door assembly of the cooking utensil 100 provided by the embodiment of the application, the guide groove 121 is arranged, so that the lock hook 130 is assembled in the handle seat 120, other parts are prevented from being randomly swayed to interfere in the rotation process of the lock hook 130, and meanwhile, the guide groove 121 does not completely lock the position of the lock hook 130, so that the whole child lock structure is more flexible in the operation process, and the user operation is more convenient.

In some embodiments, as shown in fig. 15-16, shackle 130 includes: a latch hook arm 132 and a hook body 131.

The latch hook arm 132 is pivotally mounted to the door body 110 around a first axis, and one end of the latch hook arm 132 may be coupled with the operating member 150; the hook body 131 may be connected to the other end of the latch hook arm 132, and the hook body 131 may be used to latch with the host 170.

In actual implementation, as shown in fig. 15-16, the hook 131 may face upward, the user may press the operating member 150, and drive the driving member 160 to rotate around the second axis, so as to drive one end of the latch 130 that is in power coupling connection with the driving member 160 to lift, and the latch arm 132 to rotate around the first axis, and drive the hook 131 that is connected to the other end of the latch arm 132 to rotate downward to slowly disengage from the host 170 until the latch 130 reaches the second position, at this time, the first lock of the cooking appliance 100 is released, the user holds the handle 140, and may pull the door 110 outward with a small force, and as the second lock is released, the door 110 and the host 170 of the cooking appliance 100 may also be correspondingly unlocked.

According to the door assembly of the cooking utensil 100 provided by the embodiment of the application, through the arrangement of the lock hook arm 132 and the hook body 131, the power coupling connection between the lock hook 130 and the transmission piece 160 and the locking with the host 170 are realized, the structural layout is reasonable, the functional partition is clear, and the whole cooking utensil is light and small under the premise of not affecting the normal locking and unlocking functions of the lock hook 130.

In some embodiments, as shown in fig. 15-16, shackle 130 further includes: and a support block 134.

The support block 134 may be mounted to the door body 110, the support block 134 may have a rotation shaft 135, and the latch hook 130 may be pivotally mounted to the rotation shaft 135.

The latch hook 130 may be fixedly coupled to the door body 110 by way of a support block 134, wherein the manner of fixedly coupling between the support block 134 and the door body 110 includes, but is not limited to, bolting, riveting, or snap-fitting, etc., such as, in some embodiments, the manner of fixedly coupling between the support block 134 and the door body 110 is bolting.

In this embodiment, as shown in fig. 15 to 16, the supporting seat 134 may be fixed in the door body 110, the supporting seat 134 may be installed on a side of the latch hook arm 132 near the handle 140, and the rotation shaft 135 of the supporting seat 134 may penetrate through the latch hook arm 132, and the latch hook 130 may rotate around the rotation shaft 135 after being driven.

According to the door assembly of the cooking utensil 100 provided by the embodiment of the application, through the arrangement of the supporting seat 134, the installation of the lock hook 130 on the door body 110 and the fixed assembly of the rotating shaft 135 are realized, the guide rotation of the lock hook 130 after driving is ensured, the rotation process of the lock hook 130 is more stable, and the stability of the whole child lock structure is improved.

In some embodiments, as shown in fig. 1-4 and 15-16, the door assembly of the cooking appliance 100 may further include: and a third restoring member 103.

The third restoring member 103 may be elastically coupled between the latch hook 130 and the door body 110, and the third restoring member 103 may be used to drive the latch hook 130 to maintain the first position.

As shown in fig. 15 to 16, the latch hook 130 may be provided with a guide post, the third reset element 103 may be sleeved on the guide post, the third reset element 103 may be located on a side of the rotating shaft 135 away from the hook body 131, and the third reset element 103 may be in a compressed state, and the latch hook 130 and the host 170 may be kept in a locked state by an elastic force of the third reset element 103.

The third restoring member 103 may be a spring or an elastic rubber sleeve, etc., without limitation.

In this embodiment, as shown in fig. 3 to 4, when the user presses the operation member 150, the latch hook 130 may rotate from the first position to the second position, during which the third reset member 103 is continuously compressed, and the elastic force applied to the latch hook 130 by the third reset member 103 is continuously increased until the latch hook 130 rotates to the second position against the elastic force, at this time, the first lock of the cooking appliance 100 is released, and the user may pull the handle 140 to pull the door body 110 outwards, i.e., unlock the second lock of the cooking appliance 100.

After the door is opened, the user can release the operation member 150, after the manpower applied to the latch hook 130 to overcome the elastic force disappears, the latch hook 130 can rotate from the second position to the first position, in this process, the third reset member 103 is continuously extended, the elastic force applied to the latch hook 130 by the third reset member 103 is continuously reduced until the latch hook 130 returns to the first position, and under the condition that the user needs to close the door body 110, based on the design of elastic connection, the user can directly hold the handle 140 to push the door body 110 towards the host 170 until the latch hook 130 and the host 170 are locked again, that is, the door closing action of the user can realize automatic locking of the child lock.

According to the door assembly of the cooking utensil 100 provided by the embodiment of the application, through the arrangement of the first resetting piece 101 and the guiding action of the guiding column, the locking hook 130 can automatically return to the first position after the user releases the operating piece 150, the first resetting piece 101 is not easy to fall off and durable, meanwhile, the structure is simple, the assembly part is single, the requirement on processing precision is low, and the installation is facilitated.

In some embodiments, as shown in fig. 2 and 16, the door assembly of the cooking appliance 100 further includes: drive 190 and unlocking assembly 180.

The driving part 190 may be connected with the latch hook 130; the unlocking assembly 180 may be mounted to the handle base 120, and the unlocking assembly 180 may be in contact with the driving part 190, and the unlocking assembly 180 may be used to drive the driving part 190 to rotate.

As shown in fig. 2 and 16, the driving portion 190 is connected to the latch hook 130, and the driving portion 190 may have a plate-like structure, a truncated cone structure, or other shape structures.

The connection between the driving portion 190 and the latch hook 130 may include, but is not limited to, bonding, welding, screwing, or integrally forming, for example, in some embodiments, the connection between the driving portion 190 and the latch hook 130 is integrally formed.

In actual implementation, as shown in fig. 2 and 16, the top end of the unlocking component 180 contacts with the bottom of the driving part 190, and when the user does not need the child lock structure or the operation member 150 fails, the user can operate the unlocking component 180, and drive the driving part 190 to rotate upwards through the unlocking component 180, so that the hook body 131 of the latch hook 130 can be driven to rotate downwards through the driving part 190, so as to unlock the latch hook 130 and the host 170.

Through the arrangement of the unlocking component 180 and the driving part 190, the door component of the cooking appliance 100 provided by the embodiment of the application can unlock the lock hook 130 and the host 170 through the unlocking component 180 and the driving part 190 when a user does not need a child lock structure or the operating member 150, which is equivalent to a standby operating mechanism, provides double guarantee for unlocking the lock hook 130 and the host 170, and provides various choices for users without child lock requirements.

In some embodiments, as shown in fig. 2 and 6, the unlocking assembly 180 includes: nut 181 and unlocking bolt 182.

Nut 181 may be mounted to handle base 120; the unlocking bolt 182 may be screw-coupled with the nut 181, and an end of the unlocking bolt 182 may be in contact with the driving part 190.

As shown in fig. 2 and 6, the nut 181 is installed inside the handle seat 120, and the nut 181 is located below the driving portion 190, the unlocking bolt 182 and the nut 181 may be in threaded connection, and an end portion of the unlocking bolt 182 passes through the nut 181 to contact with a bottom surface of the driving portion 190, and a head portion of the unlocking bolt 182 protrudes from a bottom portion of the handle seat 120 to facilitate a user to operate.

In actual implementation, as shown in fig. 2 and fig. 6, when the user does not need the child lock structure or the operation member 150 fails, the user can screw the unlocking bolt 182 by using the tool to move the unlocking bolt 182 upward relative to the nut 181, and the unlocking bolt 182 abuts against the driving part 190 and pushes the driving part 190 to rotate upward during the movement, so as to drive the latch hook 130 to unlock, and the unlocking bolt 182 can be kept at the position.

According to the door assembly of the cooking appliance 100 provided by the embodiment of the application, through the arrangement of the nut 181 and the unlocking bolt 182, after the unlocking bolt 182 is used for unlocking the lock hook 130 and the host 170, the lock hook 130 can be kept at the second position, so that the door body 110 can be opened later, and meanwhile, the head of the unlocking bolt 182 extends out from the bottom of the handle seat 120, so that the operation of a user is facilitated.

In some embodiments, as shown in fig. 17-20, the pivot axis of door body 110 may be located at the lower rim of door body 110, and latch hook 130 may be adapted to latch an upper portion of host 170.

In some embodiments, when the door 110 needs to be opened to take out food after cooking, the user may press the operating member 150, the operating member 150 slides backward and drives the driving member 160 to rotate around the front-rear direction, the driving member 160 may drive the latch hook 130 to rotate around the left-right direction until the latch hook 130 rotates from the first position to the second position, at this time, the first lock of the cooking appliance 100 is released, the user holds the handle 140 and pulls the door 110 with a small force, the upper frame of the door 110 may be separated from the main unit 170 of the cooking appliance 100, the upper frame of the door 110 may rotate downward around the pivot axis, and as the second lock is released, the door 110 and the main unit 170 of the cooking appliance 100 may be unlocked accordingly.

In other embodiments, the pivot axis of the door body 110 may be located at the left frame or the right frame of the door body 110, the user may press the operation member 150, the operation member 150 slides backward and drives the transmission member 160 to rotate around the front-rear direction, the transmission member 160 may drive the latch hook 130 to rotate around the up-down direction until the latch hook 130 rotates from the first position to the second position, at this time, the first lock of the cooking apparatus 100 is released, the user holds the handle 140 and pulls the door body 110 with a small force, the door body 110 rotates around the pivot axis to the left side or the right side, and the door body 110 and the main unit 170 of the cooking apparatus 100 may be correspondingly unlocked along with the release of the second lock.

According to the door assembly of the cooking utensil 100 provided by the embodiment of the application, through the unlocking structure design of the downward opening door, the mode of arranging the lock on the opposite side of the pivot axis is matched, so that the space occupied by the whole cooking utensil 100 is smaller, the volume utilization rate is improved, and the whole layout is convenient; meanwhile, the door body 110 of the sliding door type can be used as a scalding food for transition and just cooking, so that a user can conveniently take and put the food, and the experience of the whole machine is optimized.

The application also discloses a cooking appliance 100.

In some embodiments, as shown in fig. 17-20, the cooking appliance 100 includes: host 170 and a door assembly as any of the above.

Host 170 has a cooking cavity.

Host 170 may be configured to perform cooking of food by temperature control and time control, host 170 may include an interior cavity and an outer housing, the interior cavity may define a cooking cavity that may cooperate as a holding container with a door assembly to provide a closed environment for food.

The door body 110 of the door assembly is openably and closably mounted to the main body 170, the latch hook 130 is locked with the main body 170 of the cooking appliance 100 in the first position, and the latch hook 130 is unlocked with the main body 170 of the cooking appliance 100 in the second position.

It should be noted that the cooking apparatus 100 may include, but is not limited to, a microwave oven, an oven, a steaming and baking all-in-one machine, etc., for example, in some embodiments, as shown in fig. 17-20, the cooking apparatus 100 is a microwave oven.

In actual implementation, a user may put food to be cooked into the cooking cavity, after the food is cooked, the user may press the operation member 150, so that the latch hook 130 rotates around the first axis from the first position until the latch hook 130 reaches the second position, at this time, the first lock of the cooking apparatus 100 is released, the user holds the handle 140, and may pull the door 110 outwards with a smaller force, and as the second lock is released, the door 110 and the host 170 may be correspondingly unlocked, the user may take out the cooked food after opening the door 110, and then the user may directly hold the handle 140, and push the upper frame of the door 110 toward the host 170 until the latch hook 130 and the host 170 are locked again.

According to the cooking utensil 100 provided by the embodiment of the application, through the arrangement of the door assembly, the double-layer lock design is utilized, and a user is required to complete two-step unlocking to realize door opening, so that the risk that a child is scalded when opening and touching heated food and beverage is reduced; meanwhile, the child lock is simple in integral structure, convenient and quick to operate and low in cost, and the practicability and economy of the device are greatly improved.

In some embodiments, as shown in fig. 3-4, host 170 may be provided with a lock block 172, and shackle 130 may be locked with a back surface of lock block 172 in the first position.

In this embodiment, as shown in fig. 3 to 4, the front plate 171 of the main unit 170 may be provided with a locking groove, the locking piece 172 may be disposed at an edge of the locking groove and located at a side of the front plate 171 near the cooking cavity, and in the case that the latch hook 130 is locked with the main unit 170, the hook body 131 may extend into the locking groove to overlap with the locking piece 172 for locking, and then the latch hook 130 may be in the first position; with shackle 130 unlocked from host 170, hook body 131 may disengage from catch 172, at which point shackle 130 may be in the second position.

According to the cooking utensil 100 provided by the embodiment of the application, through the arrangement of the locking piece 172, the locking between the lock hook 130 and the door body 110 is realized by the mode that the hook body 131 is overlapped with the locking piece 172, so that the connecting structure is simpler and lighter, and the cost control is realized on the premise that the reliability of the child lock structure is not influenced; meanwhile, the locking piece 172 enhances the structural strength of the locking area, and improves the stability of the locking structure.

In some embodiments, as shown in fig. 3-4, both the front face of the locking block 172 and the back face of the hook body 131 of the locking hook 130 may be provided with guide surfaces.

It can be understood that if the back surfaces of the locking piece 172 and the hook 131 are both blocks without guide surfaces, when the user opens and closes the door, the edges of the locking piece 172 and the edges of the hook 131 are easily blocked, and the hook 131 is difficult to separate from or lock with the locking piece 172.

In actual implementation, when the user needs to close the door body 110, the user may directly hold the handle 140 to push the door body 110 towards the host 170, in the locking process, the guiding surface on the back of the hook body 131 abuts against the guiding surface on the front of the locking block 172, and based on the characteristic of the inclined plane, the hook body 131 may be pushed into the host 170 smoothly, that is, the front of the hook body 131 is attached to the back of the locking block 172, and the latch hook 130 is locked with the host 170 again, that is, the user closes the door to realize automatic locking of the child lock.

According to the cooking utensil 100 provided by the embodiment of the application, through the arrangement of the guide surface, the interference force of the surface characteristics of the hook body 131 and the locking piece 172 on the locking and unlocking processes is reduced to the minimum by utilizing the characteristics of the inclined surface, the difficulty of opening and closing the door of a user is greatly reduced, and the smoothness of operation is improved.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present application may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type, and are not limited to the number of objects, such as the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.

In the description of the present application, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present application and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.

In the description of the application, a "first feature" or "second feature" may include one or more of such features.

In the description of the present application, "plurality" means two or more.

In the description of the application, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other by another feature therebetween.

In the description of the application, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the application, the scope of which is defined by the claims and their equivalents.

Claims

1. A door assembly of a cooking appliance, comprising:

a door body;

the handle seat is arranged on the door body;

the handle is arranged on the handle seat;

the operating piece is slidably mounted on the handle;

2. The cooking appliance door assembly of claim 1, wherein the first axis is perpendicular to the second axis, one of the transmission member and the shackle is provided with a chute, the other is provided with a pin that slidably mates with the chute, and the pin is rotatably connected with the chute.

3. The cooking appliance door assembly according to claim 2, wherein the operating member is provided with a first driving bevel, the transmission member is provided with a second driving bevel which is attached to the first driving bevel, and a normal line of the first driving bevel and the second driving bevel forms an acute angle with the second axis.

4. The cooking appliance door assembly of claim 2, further comprising:

5. The door assembly of a cooking appliance according to claim 2, wherein the handle is provided with a rotation support to which the transmission member is rotatably mounted, and a stopper portion that stops the transmission member in a case where the transmission member is rotated around the rotation support to a target position.

6. The cooking appliance door assembly of claim 5, wherein the handle comprises:

the first handle cover is provided with the stop part;

7. The door assembly of a cooking appliance of claim 1, wherein the pull handle is provided with an escape opening, the operating member is slidably mounted in the escape opening, the operating member has a limiting boss, the limiting boss is located inside the pull handle, and the size of the operating member at the limiting boss is greater than the size of the escape opening.

8. The cooking appliance door assembly of claim 1, further comprising:

9. The door assembly of a cooking appliance according to any one of claims 1 to 8, wherein the transmission member and the latch hook are symmetrically arranged at both ends of the operation member.

10. The door assembly of a cooking appliance according to any one of claims 1 to 8, wherein the handle seat is provided with a guide groove, and both ends of the latch hook penetrate through the guide groove to be coupled with the operating member in a power coupling manner, and protrude from a rear surface of the handle seat.

11. The door assembly of a cooking appliance of any one of claims 1-8, wherein the shackle comprises:

12. The door assembly of a cooking appliance of any one of claims 1-8, wherein the shackle further comprises:

13. The door assembly of a cooking appliance of any one of claims 1-8, further comprising:

14. The door assembly of a cooking appliance of any one of claims 1-8, further comprising:

the driving part is connected with the latch hook;

15. The cooking appliance door assembly of claim 14, wherein the unlocking assembly comprises:

the nut is arranged on the handle seat;

16. The cooking appliance door assembly of any one of claims 1-8, wherein the first axis is parallel to a pivot axis of the door body, the pivot axis of the door body being located at a lower rim of the door body, the latch hook being adapted to latch an upper portion of the main machine.

17. A cooking appliance, comprising:

a main body having a cooking cavity;

the door assembly of any of claims 1-16, a door body of the door assembly being openably and closably mounted to the host, the latch hook being latched to the host in a first position and the latch hook being unlatched from the host in a second position.

18. Cooking appliance according to claim 17, wherein the main machine is provided with a locking piece, the locking hook being locked with the back of the locking piece in the first position.

19. The cooking appliance of claim 18, wherein the front face of the locking block and the back face of the hook body of the locking hook are each provided with a guide surface.