CN213480300U

CN213480300U - Door body subassembly and cooking utensil

Info

Publication number: CN213480300U
Application number: CN202022207672.3U
Authority: CN
Inventors: 汪月; 吴延岐; 周宇; 唐相伟; 雷忠琦
Original assignee: Midea Group Co Ltd; Guangdong Midea Kitchen Appliances Manufacturing Co Ltd
Current assignee: Midea Group Co Ltd; Guangdong Midea Kitchen Appliances Manufacturing Co Ltd
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2021-06-18
Anticipated expiration: 2030-09-30

Abstract

The utility model provides a door body subassembly and cooking utensil. The door body assembly comprises a door body, and the door body is provided with a connecting piece; a drive device, the drive device comprising: the bracket is connected with the connecting piece in a matching way; the first transmission piece is arranged on the bracket and is matched and connected with the connecting piece, and the first transmission piece can rotate relative to the bracket; the second transmission piece is arranged on the bracket and connected with the first transmission piece, and the second transmission piece and the first transmission piece rotate coaxially; the limiting part is mounted on the support and can be connected with the second transmission part, and the limiting part can rotate relative to the support so as to limit the second transmission part along the first direction. The utility model provides a technical scheme aims at first driving medium, second driving medium and locating part through rotating the setting, when realizing that the door body is automatic, the low-speed is closed, simplifies drive arrangement structure, cost and is lower, has less structure occupation space, is favorable to the miniaturization of door body group spare, possesses stronger commonality.

Description

Door body subassembly and cooking utensil

Technical Field

The utility model relates to a cooking utensil technical field particularly, relates to a door body subassembly and a cooking utensil.

Background

The door opening and closing system of the traditional microwave oven comprises main components such as a door body, a door hook, a front plate and a support, the door hook moves along a support ramp integrally, and finally is clamped behind the support ramp, so that the door body is closed, the whole process is driven by manpower or door body inertia, no buffering design is adopted, and the door closing noise is strongly related to the force of closing the door by a hand.

In the related art, the slow-closing door design is mainly applied to a pull-down door product. When facing the side sliding door product, increase the design of slowly closing the door at the hinge and be difficult for realizing: on one hand, for small-volume products, the designable space of the hinge position is very small, a proper mechanism is not easy to arrange, and for microwave oven products, the risk of wave leakage is increased after the door body is designed to be perforated; on the other hand, the door closing system adopts a split type door hook, realizes the slow door closing process by utilizing a buckle, a slide way, a spring, a damper and the like, and has the advantages of large occupied space, poor universality and higher cost.

SUMMERY OF THE UTILITY MODEL

The present invention aims at least solving one of the technical problems existing in the prior art or the related art.

To this end, a first aspect of the present invention is to provide a door assembly.

A second aspect of the present invention is to provide a cooking appliance.

In view of this, according to the first aspect of the present invention, a door body assembly is provided, including: the door body is provided with a connecting piece; a drive device, the drive device comprising: the bracket is connected with the connecting piece in a matching way; the first transmission piece is arranged on the bracket and is matched and connected with the connecting piece, and the first transmission piece can rotate relative to the bracket; the second transmission piece is arranged on the bracket and connected with the first transmission piece, and the second transmission piece and the first transmission piece rotate coaxially; the limiting part is mounted on the support and can be connected with the second transmission part, and the limiting part can rotate relative to the support so as to limit the second transmission part along the first direction.

In this technical scheme, through first driving medium, second driving medium and the locating part that rotates the setting, when realizing that the door body is automatic, low-speed to close, it is lower to simplify drive arrangement structure, cost, has less structure occupation space, is favorable to the miniaturization of door body group spare, and then can use on more voluminous cooking utensils, possesses stronger commonality.

Specifically, when the door body is in an open state, the second transmission member is connected with the limiting member in a matching manner, the second transmission member has a rotation trend in a first direction, and the limiting member enables the second transmission member to have a rotation trend in a second direction, that is, the torque of the limiting member is opposite to the torque of the second transmission member in direction. The second direction is opposite to the first direction, for example, the first direction is counterclockwise, and the second direction is clockwise, so that the force system balance between the second transmission member and the limiting member is realized, and the door body is stationary in the open state.

Further, when the door body enters the door closing process, the user applies a force in the door closing direction to the door body, so that the connecting piece has a certain initial speed and moves in the door closing direction (third direction), and the first transmission piece and the second transmission piece connected with the first transmission piece are driven by the connecting piece to rotate in the first direction. Because the second driving medium is influenced by external force and rotates, the force system balance between the second driving medium and the limiting part is broken, the second driving medium can drive the limiting part to rotate until the second driving medium and the limiting part are disengaged, at the moment, the rotation of the second driving medium is not limited by the limiting part any more, and the second driving medium automatically moves along the first direction. Meanwhile, the second transmission piece drives the first transmission piece to rotate, so that the connecting piece is driven to continue to move in the door closing direction until the connecting piece reaches the designated position, and the door body is closed.

On the contrary, when the door body enters the door opening process, the user applies the force in the door opening direction to the door body, so that the connecting piece has a certain initial speed and moves along the door opening direction, and the first transmission piece and the second transmission piece connected with the first transmission piece are driven by the connecting piece to rotate along the second direction. Along with the rotation of the second transmission member, the second transmission member is matched with the limiting member again, the limiting member is driven by the second transmission member to rotate until the torque of the limiting member is opposite to the torque of the second transmission member in direction, and the force system between the second transmission member and the limiting member keeps balance. At this time, the door body is still in an open state.

In the above technical solution, further, the second transmission member includes: the transmission part is connected with the first transmission piece and is arranged on one side of the bracket away from the first transmission piece, and one end of the transmission part is connected with the limiting piece in a matching way; one end of the first elastic piece is connected with the transmission part, the other end of the first elastic piece is connected with the support, and the transmission part can be rotated along the first direction by the first elastic piece.

In the technical scheme, the transmission part is connected to the first transmission piece and is arranged on one side of the support, which is deviated from the first transmission piece. The transmission part is connected with the limiting part in a matching mode, so that the rotation position of the transmission part is limited through the limiting part. Two ends of the first elastic piece are respectively connected with the transmission part and the bracket. When the first elastic piece is in a stretching state, the first elastic piece has elasticity, and the first elastic piece can drive the transmission part to rotate so that the transmission part has a rotating trend along the first direction. On the one hand, through setting up transmission portion and first driving piece respectively in the both sides of support, realize three-dimensional power transmission and direction conversion, when avoiding the part to collide each other when moving, effectively reduce the space of second driving piece and occupy, provide bigger space for other structures among the drive arrangement, strengthen the commonality. On the other hand, the elastic piece is utilized to drive the transmission part to move, so that the transmission part can drive the connecting piece to move along the door closing direction through the first transmission piece. Therefore, the function of automatically closing the door body is realized, the door body is prevented from being driven by manpower or door body inertia, the impact force caused by the rapid closing of the door body can be effectively inhibited, the door closing noise is reduced, and the cooking utensil can be prevented from being damaged by the impact force.

In any one of the above technical solutions, further, the limiting member includes: the limiting frame is arranged on the bracket; the limiting block is connected with the limiting frame and is matched and connected with the transmission part; one end of the second elastic piece is connected with the limiting frame, the other end of the second elastic piece is connected with the support, and the second elastic piece can drive the limiting frame to rotate.

In this technical scheme, provide power for spacing frame and stopper through the second elastic component. When the door body is in an opening state, the transmission part is matched with the limiting block, the transmission part has a rotation trend in a first direction under the pulling of the first elastic piece, and the limiting block has a rotation trend in a second direction under the pulling of the second elastic piece, so that the transmission part has a rotation trend in a second direction, namely the torque of the limiting piece is opposite to that of the second transmission piece. Therefore, the force system balance between the second transmission piece and the limiting piece is realized, and the door body can be still in an opening state. And then spacing to the second driving medium through rotatable locating part, simplify the drive arrangement structure, be favorable to the miniaturization of a body subassembly, the support depth distance has descended more than 16% for on the body subassembly can be used to more voluminous cooking utensils, possess stronger commonality.

In any one of the above technical solutions, further, the limiting block includes: a first stopper and a second stopper; the first limiting block, the second limiting block and the limiting frame are constructed into a groove structure, and the transmission part can be arranged in the groove structure.

In the technical scheme, the limiting blocks comprise a first limiting block and a second limiting block. The first limiting block, the second limiting block and the limiting frame are constructed into a groove structure, and the transmission part can be arranged in the groove structure. When the door body is in an opening state, the first limiting block is abutted against one side of the groove structure close to the first limiting block, and the first direction of the transmission part is limited through the first limiting block.

As shown in fig. 7, when the door body is closed, after the user applies a force to the door body in the door closing direction, the force system balance between the transmission part and the first limiting block is broken, the limiting frame rotates in the second direction under the driving of the transmission part and the second elastic element, the transmission part gradually releases the matching connection relation with the groove structure, and at this time, the rotation of the transmission part is not limited by the first limiting block any more and automatically moves in the first direction.

On the contrary, when the door body enters the door opening process, the user applies force in the door opening direction to the door body, and the transmission part is driven to rotate along the second direction. Along with the rotation of transmission portion, transmission portion and groove structure are close to the one side contact of second stopper to the spacing frame begins to rotate along first direction under the transmission portion drives, and until the moment of locating part and the moment direction of second driving medium are opposite, transmission portion contacts with first stopper once more. When the force system between the transmission part and the first limiting block is balanced, the door body is still in an opening state.

In any of the above technical solutions, further, the first transmission member has a notch; the connecting piece is connected with the notch in a matching way.

In this technical solution, in a direction perpendicular to the rotation axis of the first transmission member, the notch is configured to be recessed toward the rotation axis, and an end of the first transmission member away from the rotation axis is divided into a first end and a second end by the notch. When the door body is in an opening state, the connecting piece is matched with the notch, namely the connecting piece is contacted with the first end and the second end of the first transmission piece. When the door body enters a door closing process, after a user applies force in a door closing direction to the door body, the connecting piece is pushed and moves in the door closing direction at a certain initial speed, and the connecting piece drives the first transmission piece to rotate in the first direction. Along with the rotation of the first transmission piece along the first direction, the connecting piece gradually leaves away from the second end until the connecting piece reaches the designated position. When the door body enters the door opening process, a user applies force in the door opening direction to the door body, and the connecting piece drives the first transmission piece to rotate along the second direction by taking the first end as an acting point. Along with the rotation of the first transmission piece along the second direction, the first transmission piece restores the connection relation with the second end, so that the notch is connected with the first transmission piece again. Thereby through setting up the breach, strengthen the joint strength of first transmission piece and connecting piece under the door body state of opening, avoid rocking the condition such as the lower transmission portion of waiting and break away from the locating part, and then guarantee the stability of door body state of opening, satisfy user's user demand.

In any of the above technical solutions, further, the method further includes: a damper mounted to the bracket; the damper abuts against the link based on the link moving in the third direction.

In the technical scheme, when the door body is closed, the connecting piece is driven to move through manpower, and the transmission part is driven to continue to rotate along the first direction under the driving of the first elastic piece after being separated from the limiting piece. Need not the manual work at this moment and exert external force, can drive the connecting piece through first driving medium and follow the third direction motion. As the link moves, the link comes into contact with the damper, which is continually compressed and acts as a cushion. The transmission part stops moving after rotating to a certain angle, at the moment, the first elastic piece still has certain pulling force, and the connecting piece compresses the damper to the shortest state, the connecting piece is buckled with the lock catch on the support, and then the force system balance is realized, and the door closing process is finished. Thereby provide the resistance for the motion of connecting piece through the attenuator, consume a motion energy for the connecting piece can be steady, slow motion, further reduces the noise that the in-process produced of closing the door, satisfies the demand of noise, promotes user's use and experiences. When the door body is in the process of opening the door, the connecting piece is gradually far away from the damper, and the damper is self-provided with a reset function and automatically restores to a certain length so as to facilitate the next time of closing the door and buffering by the absolute connecting piece.

In any of the above technical solutions, further, the bracket is provided with an accommodating groove and a lock catch; the accommodating groove is provided with a chamfer surface; the lock catch can be connected with the connecting piece in a matched mode to close the door body.

In this technical scheme, when the door body is connected with the support, first connecting piece is located the holding tank. When the door body is closed, the first connecting piece moves towards the direction from the second connecting piece to the first connecting piece along the inclined cutting surface of the accommodating groove, the second connecting piece moves towards the direction from the second connecting piece to the first connecting piece along with the first connecting piece, the damper is compressed, and the first end of the second connecting piece is connected with the first transmission piece in a matched mode. When the first connecting piece moves to the designated position, the first connecting piece slides down the oblique plane, moves towards the direction from the first connecting piece to the second connecting piece and is connected with the lock catch at one end of the oblique plane so as to fix the first connecting piece, meanwhile, the second connecting piece moves along with the first connecting piece towards the direction from the first connecting piece to the second connecting piece, the second end of the second connecting piece is connected with the lock catch at one side of the damper so as to fix the second connecting piece, further, the force system is balanced, and the door closing process is finished. When the door body is in the door opening process, the first connecting piece and the second connecting piece are separated from the lock catch under the action of external force and slide along the inclined plane, the damper is restored to the original length, the first end of the second connecting piece drives the second transmission piece and the limiting piece to rotate until the torque of the limiting piece is opposite to the torque of the second transmission piece in direction, and the force system between the second transmission piece and the limiting piece is kept balanced. All the components are restored to the initial state, and the door opening process is finished. Therefore, the low-speed closing process and the opening process of the door body are realized, the structure of the driving device can be simplified, the cost is lower, the occupied space of a smaller structure is smaller, the miniaturization of the door body assembly is facilitated, and the door body assembly can be applied to cooking utensils with more volumes and has stronger universality.

In any of the above technical solutions, further, the connecting member includes: the first connecting piece is positioned in the accommodating groove and can move along the oblique plane; and the first end of the second connecting piece is connected with the first transmission piece in a matched manner, and the second end of the second connecting piece is connected with the lock catch in a matched manner.

In any of the above technical solutions, further, the first connecting piece and the second connecting piece are arranged side by side along the fourth direction.

In the technical scheme, the first connecting piece and the second connecting piece are connected with each other and arranged on the door plate of the door body side by side along the height direction (the fourth direction) of the door body, so that the structure of the door body is simplified, and the door is convenient to open and close.

According to a second aspect of the present invention, a cooking appliance is provided, comprising: a housing having an opening; and the door body assembly is arranged on the shell and is configured to open or close the opening. Therefore, the cooking appliance has all the beneficial effects of the door body assembly provided by the first aspect.

Further, the cooking appliance includes a microwave oven, an oven, a steam box, and the like.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 illustrates a perspective view of a door body assembly according to one embodiment of the present invention;

FIG. 2 shows a perspective view of a door body assembly according to yet another embodiment of the present invention;

FIG. 3 illustrates a side view of a door body assembly according to one embodiment of the present invention;

FIG. 4 illustrates a side view of a door body assembly according to yet another embodiment of the present invention;

FIG. 5 is a perspective view of the door body assembly during closing of the door according to one embodiment of the present invention;

FIG. 6 is a perspective view of a door body assembly during closing of a door according to yet another embodiment of the present invention;

fig. 7 is a schematic view of a limiting member during a door closing process according to an embodiment of the present invention;

fig. 8 shows a schematic view of the assembly of the first transmission member and the second transmission member of an embodiment of the present invention;

FIG. 9 illustrates an assembled side view of the first transmission member and the second transmission member of one embodiment of the present invention;

fig. 10 is a schematic structural view of a stop frame according to an embodiment of the present invention;

fig. 11 is a schematic view of a stopper in an opened state of a door according to an embodiment of the present invention;

fig. 12 is a schematic view of a stopper in a closed state of the door according to an embodiment of the present invention.

The reference numbers illustrate:

the damper comprises a 100 door body assembly, a 110 door body, a 112 first connecting piece, a 114 second connecting piece, a 120 driving device, a 122 support, 1222 lock catches, 1224 accommodating grooves, a 124 first transmission piece, a 126 second transmission piece, a 1262 transmission part, a 1264 first elastic piece, a 128 limiting piece, a 1282 limiting frame, a 1284 first limiting piece, a 1286 second limiting piece, a 1288 second elastic piece, a 130 damper, a 132 damper cover and a 140 lever cover.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Door body assembly, cooking utensil according to some embodiments of the present invention are described below with reference to fig. 1 to 12.

Example 1:

as shown in fig. 1, 2, 3 and 4, according to an embodiment of the first aspect of the present invention, a door body assembly 100 is provided, including: a door body 110 and a driving device 120.

In detail, the door body 110 is provided with a connector. The driving device 120 includes: the support 122, the first transmission member 124, the second transmission member 126 and the limiting member 128. The bracket 122 can be connected with the connecting pieces (the first connecting piece 112 and the second connecting piece 114) on the door body 110 in a matching manner. The first transmission member 124, the second transmission member 126 and the limiting member 128 are all mounted on the bracket 122 and can rotate relative to the bracket 122. Specifically, the first transmission member 124 is connected with the connecting member in a matching manner, and the second transmission member 126 is connected with the first transmission member 124 through a rotating shaft, so that the first transmission member 124 and the second transmission member 126 rotate coaxially, and the second transmission member 126 is connected with the connecting member through the first transmission member 124. The second transmission member 126 can be connected to the limiting member 128 in a matching manner, and the limiting member 128 can limit the second transmission member 126 along the first direction.

In this embodiment, the first transmission member 124, the second transmission member 126 and the limiting member 128 are rotatably disposed, so that the structure of the driving device 120 is simplified, the cost is low, the structure occupies a smaller space, the miniaturization of the door assembly 100 is facilitated, and the door assembly can be applied to cooking appliances with more volumes, and has high universality while the door 110 is automatically closed at a low speed.

Specifically, when the door body 110 is in the open state, the second transmission member 126 is connected to the limiting member 128 in a matching manner, the second transmission member 126 has a rotation tendency in a first direction, and the limiting member 128 makes the second transmission member 126 have a rotation tendency in a second direction, that is, the torque of the limiting member 128 is opposite to the torque of the second transmission member 126. The second direction is opposite to the first direction, for example, if the first direction is a counterclockwise direction, the second direction is a clockwise direction, so that the force system balance between the second transmission member 126 and the limiting member 128 is realized, and the door body 110 is stationary in the open state.

As shown in fig. 1, 5 and 6, when the door body 110 enters the door closing process, a user applies a force to the door body 110 in the door closing direction, so that the connecting member has a certain initial speed and moves in the door closing direction (third direction), and the first transmission member 124 and the second transmission member 126 connected to the first transmission member 124 are driven by the connecting member to rotate in the first direction. Because the second transmission member 126 rotates under the influence of an external force, the force balance between the second transmission member 126 and the limiting member 128 is broken, and the second transmission member 126 can drive the limiting member 128 to rotate until the second transmission member 126 and the limiting member 128 are disengaged, at this time, the rotation of the second transmission member 126 is no longer limited by the limiting member 128, and automatically moves along the first direction. Meanwhile, the second transmission member 126 drives the first transmission member 124 to rotate, so as to drive the connection member to continue to move in the door closing direction until the connection member reaches the designated position, and the door body 110 is closed.

On the contrary, when the door body 110 enters the door opening process, the user applies a force to the door body 110 in the door opening direction, so that the connecting member has a certain initial speed and moves in the door opening direction, and the first transmission member 124 and the second transmission member 126 connected with the first transmission member 124 are driven by the connecting member to rotate in the second direction. With the rotation of the second transmission member 126, the second transmission member 126 is again engaged with the limiting member 128, and the limiting member 128 is driven by the second transmission member 126 to rotate until the torque of the limiting member 128 is opposite to the torque of the second transmission member 126, and the force system between the second transmission member 126 and the limiting member 128 is balanced. At this time, the door 110 is still in the open state.

Example 2:

as shown in fig. 2, according to an embodiment of the present invention, including the features defined in any of the above embodiments, and further: second transmission member 126 includes transmission portion 1262 and first elastic member 1264.

In detail, the transmission part 1262 is connected to the first transmission member 124 and is installed on a side of the bracket 122 facing away from the first transmission member 124. The driving portion 1262 is cooperatively connected with the limiting member 128, so that the rotational position of the driving portion 1262 is limited by the limiting member 128. The first elastic member 1264 is connected to the transmission part 1262 and the bracket 122 at both ends thereof. When the first elastic member 1264 is in the stretched state, the first elastic member 1264 has an elastic force, and the first elastic member 1264 can drive the transmission part 1262 to rotate, so that the transmission part 1262 has a rotation tendency along the first direction.

In this embodiment, on one hand, by disposing the transmission part 1262 and the first transmission member 124 on two sides of the bracket 122, three-dimensional force transmission and direction conversion are realized, so that the space occupation of the second transmission member 126 is effectively reduced while avoiding mutual collision of the components during movement, and a larger space is provided for other structures in the driving device 120, thereby enhancing the universality. On the other hand, the elastic member drives the transmission part 1262 to move, so that the transmission part 1262 can drive the connecting member to move in the door closing direction by the first transmission member 124. Therefore, the function of automatically closing the door body 110 is realized, the door body 110 is prevented from being driven by manpower or door body inertia, the impact force caused by the rapid closing of the door body 110 can be effectively inhibited, the door closing noise is reduced, and the cooking utensil can be prevented from being damaged by the impact force.

It should be noted that the first elastic member 1264 may be a spring, which further simplifies the manufacturing process and reduces the manufacturing cost.

Example 3:

as shown in fig. 1 and 10, according to an embodiment of the present invention, including the features defined in any of the above embodiments, and further: the stopper 128 includes: a limiting block 1282, a limiting block (not shown in the figure) and a second elastic element 1288.

In detail, the position-limiting frame 1282 is mounted on a side of the bracket 122 facing away from the first transmission member 124, that is, the position-limiting frame 1282 and the second transmission member 126 are mounted on the same side of the bracket 122. The limiting block is connected with the limiting frame 1282, and the limiting block can be connected with the transmission part 1262 of the second transmission piece 126 in a matching manner so as to limit the second transmission piece 126. One end of the second elastic member 1288 is connected to the limiting frame 1282, and the other end of the second elastic member 1288 is connected to the bracket 122. When the second elastic member 1288 is in a stretched state, the second elastic member 1288 has an elastic force, and the second elastic member 1288 can drive the limiting frame 1282 to rotate, so that the transmission part 1262 has a rotation tendency along the second direction.

In this embodiment, the second elastic member 1288 provides power to the stop frame 1282 and the stop block. When the door 110 is in an open state, the transmission part 1262 and the limiting block are engaged, the transmission part has a first direction rotation tendency when the first elastic member 1264 is pulled, and the limiting block has a second direction rotation tendency when the second elastic member 1288 is pulled, so that the transmission part 1262 has a second direction rotation tendency, that is, the moment of the limiting block 128 is opposite to the moment of the second transmission part 126. Therefore, the balance of the force system between the second transmission member 126 and the limiting member 128 is realized, so that the door body 110 can be stationary in the open state. And then spacing second driving medium 126 through rotatable locating part 128, simplify drive arrangement 120 structure, be favorable to the miniaturization of door body subassembly 100, support 122 depth distance has descended more than 16% for door body subassembly 100 can be used to on the cooking utensil of more volumes, possesses stronger commonality.

It should be noted that the second elastic member 1288 may be a spring, which further simplifies the manufacturing process and reduces the manufacturing cost.

Further, as shown in fig. 1 and 7, the stoppers include a first stopper 1284 and a second stopper 1286. The first stopper 1284, the second stopper 1286 and the stopper 1282 are configured as a groove structure, and the transmission 1262 can be arranged in the groove structure. When the door body 110 is in an open state, the first limit block 1284 abuts against one side of the groove structure close to the first limit block 1284, and the first direction of the transmission part 1262 is limited by the first limit block 1284.

As shown in fig. 7, when the door body 110 is in a door closing process, after a user applies a force in a door closing direction to the door body 110, a force system balance between the transmission part 1262 and the first limit block 1284 is broken, the limit block 1282 is driven by the transmission part 1262 and the second elastic member 1288 to rotate in the second direction, the transmission part 1262 gradually releases the matching connection relationship with the groove structure, and at this time, the rotation of the transmission part 1262 is no longer limited by the first limit block 1284 and automatically moves in the first direction.

Conversely, when the door 110 enters the door opening process, the user applies a force to the door 110 in the door opening direction, and the transmission part 1262 is driven to rotate in the second direction. With the rotation of the transmission part 1262, the transmission part 1262 contacts with one side of the groove structure close to the second limit block 1286, and the limit block 1282 starts to rotate along the first direction under the driving of the transmission part 1262 until the torque of the limit block 128 is opposite to the torque of the second transmission piece 126, and the transmission part 1262 contacts with the first limit block 1284 again. When the force system between the transmission part 1262 and the first stopper 1284 is balanced, the door 110 is still in the open state.

Specifically, as shown in fig. 1, 8 and 9, one end of the transmission part 1262 away from the rotation axis of the transmission part 1262 is bent and disposed, and is connected to the limiting member 128 in a matching manner. Thereby strengthen the cooperation intensity between drive portion 1262 and the locating part 128, avoid rocking the condition under drive portion 1262 breaks away from locating part 128, and then guarantee the stability of the state of opening of door body 110, satisfy user's user demand.

Example 4:

as shown in fig. 1, 8 and 9, according to an embodiment of the invention, including the features defined in any of the above embodiments, and further: the first transmission member 124 has a notch, and the notch is connected with the connecting member.

In this embodiment, the notch is configured to be recessed toward the rotation axis in a direction perpendicular to the rotation axis of the first transmission member 124, and an end of the first transmission member 124 away from the rotation axis is divided into a first end and a second end by the notch. When the door 110 is in the open state, the connecting member is engaged with the notch, that is, the connecting member is in contact with the first end and the second end of the first transmission member 124. When the door body 110 enters the door closing process, after a user applies a force in the door closing direction to the door body 110, the connecting piece is pushed and moves in the door closing direction at a certain initial speed, and the connecting piece drives the first transmission piece 124 to rotate in the first direction. With the rotation of the first transmission member 124 in the first direction, the connection member gradually moves away from the second end until the connection member reaches a designated position. When the door body 110 enters the door opening process, the user applies a force in the door opening direction to the door body 110, and the connecting piece drives the first transmission piece 124 to rotate along the second direction by taking the first end as an acting point. With the rotation of the first transmission member 124 in the second direction, the first transmission member 124 is restored to the connection relationship with the second end, so that the notch is connected with the first transmission member 124 again. Thereby through setting up the breach, strengthen the joint strength of first transmission piece 124 and connecting piece under the door body 110 state of opening, avoid rocking the condition under the transmission portion 1262 breaks away from locating part 128, and then guarantee the stability of the door body 110 state of opening, satisfy user's user demand.

Example 5:

as shown in fig. 1, according to an embodiment of the present invention, including the features defined in any of the above embodiments, and further: the drive device 120 further comprises a damper 130.

In detail, the damper 130 is mounted on the bracket 122 and is located on a side of the bracket 122 facing the first transmission member 124. When the door body 110 is in the door closing process, the connecting member moves in the third direction (door closing direction), and the damper 130 abuts against the connecting member.

In this embodiment, when the door 110 is closed, the connecting member is driven by a human power, and the driving portion 1262 is disengaged from the retaining member 128 and then continues to rotate in the first direction under the driving of the first elastic member 1264. At this time, the first transmission member 124 can drive the connecting member to move along the third direction without applying an external force manually. As the link moves, it comes into contact with the dampener 130, and the dampener 130 is continually compressed and acts as a cushion. The driving part 1262 stops moving after rotating to a certain angle, and at this time, the first elastic element 1264 has a certain pulling force, and the connecting element compresses the damper 130 to the shortest state, and the connecting element is buckled with the lock 1222 on the bracket 122, so that the force system balance is realized, and the door closing process is finished. Thereby provide the resistance for the motion of connecting piece through attenuator 130, consume a motion energy for the connecting piece can be steady, slow motion, further reduces the noise that the in-process produced of closing the door, satisfies the demand of noise, promotes user's use and experiences. When the door body 110 is in the process of opening the door, the connecting piece is gradually far away from the damper 130, and the damper 130 has a reset function and automatically restores to a certain length so as to facilitate the buffering of the absolute connecting piece for closing the door next time.

Example 6:

as shown in fig. 1 and 2, according to an embodiment of the present invention, including the features defined in any of the above embodiments, and further: the bracket 122 is provided with receiving slots 1224 and a latch 1222, the connecting members including a first connecting member 112 and a second connecting member 114.

In this embodiment, the first connector 112 and the second connector 114 are connected to each other and are disposed side by side on the door panel of the door body 110 in the height direction (fourth direction) of the door body 110. When the door 110 is connected to the bracket 122, the first connecting member 112 is located in the receiving groove 1224. When the door body 110 is closed, the first connecting member 112 obliquely moves along the receiving groove 1224 in a direction from the second connecting member 114 to the first connecting member 112, the second connecting member 114 moves along with the first connecting member 112 in a direction from the second connecting member 114 to the first connecting member 112, and compresses the damper 130, and the first end of the second connecting member 114 is connected to the first transmission member 124 in a matching manner. When the first connecting member 112 moves to a predetermined position, it slides off the bevel, the first connecting member 112 moves toward the direction from the first connecting member 112 to the second connecting member 114 and connects with the latch 1222 at one end of the bevel to fix the first connecting member 112, meanwhile, the second connecting member 114 moves along the direction from the first connecting member 112 to the second connecting member 114 along with the first connecting member 112, and the second end of the second connecting member 114 connects with the latch 1222 at one side of the damper 130 to fix the second connecting member 114, so that the force system is balanced, and the door closing process is finished. When the door body 110 is in the process of opening the door, the first connecting member 112 and the second connecting member 114 are disengaged from the latch 1222 by an external force and slide along the oblique plane, the damper 130 returns to the original length, the first end of the second connecting member 114 drives the second transmission member 126 and the limiting member 128 to rotate until the torque of the limiting member 128 is opposite to the torque of the second transmission member 126, and the force system between the second transmission member 126 and the limiting member 128 is balanced. All the components are restored to the initial state, and the door opening process is finished. Therefore, the low-speed closing process and the opening process of the door body 110 are realized, the structure of the driving device 120 can be simplified, the cost is lower, the occupied space of the structure is smaller, the miniaturization of the door body assembly 100 is facilitated, the door body assembly can be applied to cooking utensils with more volumes, and the door body assembly has stronger universality.

Example 7:

as shown in fig. 1 to 4, according to an embodiment of the present invention, a door slowly closing/soft closing mechanism (door assembly 100) is provided, which includes: the door hook assembly includes an integrated door hook (connector), a bracket 122, a driving lever (transmission part 1262), a trigger lever (first transmission part 124), a limit lever (limit body), a door hook spring, a driving spring (first elastic part 1264), a limit spring (second elastic part 1288), a damper 130, a lever cover 140, a damper cover 132, and the like.

Description of initial state (clockwise and counterclockwise determination, default to frontal view, as shown in fig. 1):

(1) the trigger lever, the driving lever and the limit lever can rotate around the fixed shaft, the trigger lever and the driving lever rotate coaxially and are respectively positioned at two sides of the bracket 122, and the end part of the driving lever, which is far away from the rotating shaft, is jointed with the limit lever;

(2) the driving spring is connected with the driving lever and is positioned on the back surface of the bracket 122, and the limiting spring is connected with the limiting lever and is positioned on the front surface of the bracket 122;

(3) at the initial moment, as shown in fig. 11, the driving spring is stretched to the maximum, the spring tension is the maximum, the driving spring makes the driving lever have a tendency of counterclockwise movement when viewed from the front, and at this time, the limiting spring position makes the limiting lever drive the driving lever to have a tendency of clockwise movement, and the two tendencies realize the force system balance after being designed.

As shown in fig. 5 and 6, the door closing process of the slow door closing/soft door closing mechanism:

(1) the lower door hook (the second connecting piece 114) firstly contacts the trigger lever under the condition of a certain initial speed, the trigger lever is provided with a front protruding part and a rear protruding part which are respectively jointed with the front side and the rear side of the door hook, and the door hook enables the fixed shaft of the trigger lever to rotate anticlockwise so as to drive the driving lever to synchronously rotate anticlockwise;

(2) the counterclockwise rotation trend of the driving (triggering) lever breaks the balance of the force system at the initial moment, so that the limiting lever drives the fixed shaft of the limiting spring to rotate clockwise, the force system is not balanced any more at the moment, and the limiting spring cannot block the driving lever to move because the force arm of the limiting spring is smaller and smaller;

(3) the driving (triggering) lever drives the lower door hook to move, the upper door hook (the first connecting piece 112) starts to move along the slope of the support 122 until the upper door hook moves to the highest point of the slope, meanwhile, the lower door hook moves to the upper horizontal area of the slope step by step, and the upper door hook and the lower door hook move synchronously. In this process, the lower hook starts to contact the damper 130, and the damper 130 starts to perform a buffering function and is continuously compressed. As shown in fig. 12, the limit lever moves clockwise to the limit under the tension of the limit spring;

(4) the driving (triggering) lever stops moving after rotating to a certain angle, at the moment, the driving spring also has certain pulling force, under the action of the pulling force of the door hook spring, the upper door hook slides to the rear of the slope of the bracket 122, the lower door hook simultaneously slides to the rear of the horizontal area of the slope, the damper 130 is compressed to the shortest state, the force system is balanced, and the door closing process is finished.

(II) the door opening process of the slow door closing/soft door closing mechanism:

(1) under the drive of manpower, the upper door hook moves to the top end of the ramp, the lower door hook moves to the horizontal area of the ramp, at the moment, the lower door hook starts to contact with the trigger lever, and the damper 130 has a reset function and automatically restores to a certain length;

(2) under the drive of manpower, the lower door hook drives the driving (triggering) lever to rotate clockwise, the upper door hook and the lower door hook slide along respective slopes until the driving lever contacts the limiting lever, and at the moment, the damper 130 further recovers the length;

(3) under the drive of manpower, the end part of the driving lever drives the limiting lever to rotate anticlockwise until the door is restored to an opening state, and at the moment, the damper 130 is restored to the original length;

(4) the lower door hook is separated, the driving (triggering) lever has a tendency of anticlockwise rotation under the action of spring tension, but the limiting lever realizes force system balance under the action of anticlockwise tension of the limiting spring, all components are restored to an initial state, and the door opening process is finished.

In this embodiment, the drive spring and damper 130 are engaged by rotation of the drive lever, trigger lever and limit lever. On the one hand, at the in-process of closing the door, the effective absorption is closed the door and is strikeed the impact force, plays the cushioning effect, solves the side sliding door and closes the problem that the noise is big, user experience is poor of in-process. On the other hand, the structure is simpler, the cost is lower, the depth distance of the bracket 122 is reduced by more than 16%, the occupied space of the structure is smaller, the bracket can be applied to machine types with more volumes, and the universality is stronger.

Example 8:

according to an embodiment of the second aspect of the present invention, there is provided a cooking appliance, including: the casing and the door body subassembly that the embodiment of first aspect provided. Therefore, the cooking appliance has all the beneficial effects of the door body assembly provided by the first aspect, and the description is omitted.

In detail, the housing has an opening. The door body assembly is mounted on the shell and configured to open or close the opening.

Specifically, the cooking appliance includes: microwave ovens, steam boxes, and the like.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In addition, the technical solutions between the embodiments of the present invention can be combined with each other, but it is necessary to be able to be realized by a person having ordinary skill in the art as a basis, and when the technical solutions are contradictory or cannot be realized, the combination of such technical solutions should be considered to be absent, and is not within the protection scope of the present invention.

Claims

1. A door assembly, comprising:

the door body is provided with a connecting piece;

a drive device, the drive device comprising:

the bracket is connected with the connecting piece in a matching way;

the first transmission piece is mounted on the bracket and is matched and connected with the connecting piece, and the first transmission piece can rotate relative to the bracket;

the second transmission piece is arranged on the bracket and connected with the first transmission piece, and the second transmission piece and the first transmission piece coaxially rotate;

the limiting part is mounted on the support and can be connected with the second transmission part, and the limiting part can rotate relative to the support so as to limit the second transmission part along a first direction.

2. The door body assembly according to claim 1, wherein the second transmission member includes:

the transmission part is connected with the first transmission piece and is arranged on one side of the bracket far away from the first transmission piece, and one end of the transmission part is connected with the limiting piece in a matched mode;

one end of the first elastic piece is connected with the transmission part, the other end of the first elastic piece is connected with the support, and the transmission part can rotate along the first direction through the first elastic piece.

3. The door body assembly according to claim 2, wherein the retainer comprises:

the limiting frame is arranged on the bracket;

the limiting block is connected with the limiting frame and is matched and connected with the transmission part;

one end of the second elastic piece is connected with the limiting frame, the other end of the second elastic piece is connected with the support, and the second elastic piece can drive the limiting frame to rotate.

4. The door body assembly according to claim 3,

the stopper includes: a first stopper and a second stopper;

the first limiting block, the second limiting block and the limiting frame are constructed into a groove structure, and the transmission part can be arranged in the groove structure.

5. The door body assembly according to any one of claims 1 to 4,

the first transmission piece is provided with a notch;

the connecting piece is connected with the notch in a matching way.

6. The door body assembly according to any one of claims 1 to 4, further comprising:

a damper mounted to the bracket;

the damper abuts against the link based on the link moving in the third direction.

7. The door body assembly according to any one of claims 1 to 4,

the bracket is provided with an accommodating groove and a lock catch;

the accommodating groove is provided with a chamfer plane;

the lock catch can be connected with the connecting piece in a matched mode so as to close the door body.

8. The door body assembly according to claim 7, wherein the connector includes:

the first connecting piece is positioned in the accommodating groove and can move along the oblique plane;

and the first end of the second connecting piece is matched and connected with the first transmission piece, and the second end of the second connecting piece is matched and connected with the lock catch.

9. The door body assembly according to claim 8,

the first connecting piece and the second connecting piece are arranged side by side along a fourth direction.

10. A cooking appliance, comprising:

a housing having an opening;

the door assembly according to any one of claims 1 to 9, mounted to the housing, the door assembly being configured to open or close the opening.