CN212743728U

CN212743728U - Cooking utensil

Info

Publication number: CN212743728U
Application number: CN202021163545.1U
Authority: CN
Inventors: 刘蕾; 梁德强; 陆树敏
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: 2020-06-19
Filing date: 2020-06-19
Publication date: 2021-03-19
Anticipated expiration: 2030-06-19

Abstract

The utility model discloses a cooking utensil, including casing, the door body and sliding door mechanism. The housing defines a holding chamber with an open mouth communicating with the holding chamber. The door body is rotatably provided at the open opening to open or close the open opening. Push away a mechanism and include driving motor, the lead screw, push rod and internal thread support, driving motor establishes on the casing, the one end of lead screw and driving motor's output shaft, internal thread support has the internal thread hole, the lead screw wear to establish in the internal thread hole and with the internal thread cooperation of internal thread hole with the internal thread support of drive along the length direction removal of lead screw, the one end and the internal thread leg joint of push rod, when the internal thread support removed along the direction that driving motor was kept away from to the lead screw orientation, the other end of push rod is suitable for with the contact of a body and promotes a body so that the body of the body opens the mouth, be equipped with the elastic component between the at least one end in the both ends of internal thread. The utility model discloses a cooking utensil is convenient for clean, simple structure.

Description

Cooking utensil

Technical Field

The utility model belongs to the technical field of the kitchen appliance technique and specifically relates to a cooking utensil is related to.

Background

In kitchen appliance technical field, in order to solve cooking utensil's handle collision health and occupation space's problem, adopt hidden handle mostly, the door body surface is flat promptly, and the handle embedding is in a body, and hidden handle not only has the difficult cleanness in handle position, gathers the shortcoming of greasy dirt and dust easily, still has the shortcoming that influences a body outward appearance effect. In addition, the hidden handle is easy to heat up, which causes the temperature of the handle to be higher.

SUMMERY OF THE UTILITY MODEL

The utility model provides a cooking utensil, cooking utensil has the advantage of being convenient for clean, simple structure.

According to the utility model discloses cooking utensil, including casing, the door body and sliding door mechanism. The housing defines a holding chamber with an open mouth communicating with the holding chamber. The door body is rotatably arranged at the open opening to open or close the open opening. Push away a mechanism and include driving motor, lead screw, push rod and internal thread support, driving motor establishes on the casing, the one end of lead screw with driving motor's output shaft, internal thread support has the internal thread hole, the lead screw wear to establish in the internal thread hole and with the internal thread cooperation in the internal thread hole is in order to drive the internal thread support is followed the length direction of lead screw removes, the one end of push rod with internal thread leg joint the internal thread support is followed the lead screw orientation is kept away from during driving motor's direction removes, the other end of push rod be suitable for with the door body contact promotes the door body is so that the door body is opened open the opening is opened, the internal thread support with be equipped with the elastic component between the at least one end in the both ends of lead screw, the elastic component cover is established on the lead screw.

According to the utility model discloses cooking utensil through setting up sliding door mechanism, lets driving motor work drive lead screw rotate, and the lead screw removes along the lead screw orientation with the drive internal thread support through the interior screw-thread fit with the internal screw-thread hole of internal thread support, and the removal of internal thread support can drive the push rod and remove along the direction that driving motor was kept away from to the lead screw orientation, and the other end and the door body contact of push rod promote a body so that the door body opens the opening. Therefore, the utility model discloses a do not have the handle on cooking utensil's the door body to the door body outward appearance effect is better, and the clearance of being convenient for can avoid greasy dirt and dust to gather in the handle, also can avoid the higher problem of handle department temperature. Furthermore, the utility model discloses a cooking utensil, sliding door mechanism simple structure, the processing and the installation of being convenient for to can save the cost.

In some embodiments, a mounting groove is formed in the internal thread support, one end of the push rod is clamped in the mounting groove, the mounting groove is provided with a communication port for mounting the push rod, the mounting groove is further provided with an extending port for extending out of the other end of the push rod, and the extending port is communicated with the communication port.

In some embodiments, the mounting groove includes a first groove section and a second groove section in sequence in a direction from the communication port of the mounting groove to the wall surface opposite to the communication port, and a width of the first groove section is gradually reduced, and a width of the second groove section is the same as a width of an end of the first groove section adjacent to the second groove section.

In some embodiments, the door pushing mechanism further comprises a guide bracket, the guide bracket is arranged at the other end of the screw rod, and the guide bracket is provided with a guide hole for the push rod to pass through.

In some embodiments, one of the surface of the guide bracket facing the screw rod and the surface of the screw rod facing the guide bracket is provided with a positioning protrusion, and the other is provided with a positioning groove matched with the positioning protrusion.

In some embodiments, the guide bracket further includes a guide tube, the guide tube is inserted into the guide hole, one end of the guide tube, which is far away from the internal thread bracket, extends beyond the guide hole, the push rod is inserted into the guide tube, the housing is provided with a through hole, and one end of the guide tube, which is far away from the internal thread bracket, is inserted into the through hole.

In some embodiments, the guide tube comprises a first section and a second section which are connected in sequence, the first section is located at one end, far away from the internal thread support, of the second section, the outer diameter of the first section is smaller than that of the second section, the outer diameter of the second section is larger than the inner diameter of the through hole, and the first section is arranged in the through hole in a penetrating mode.

In some embodiments, the internally threaded bracket moves between a first position and a second position along a length of the wire rod, the push gate mechanism further comprising: the device comprises a first position switch for detecting whether the internal thread support moves to a first position and a second position switch for detecting whether the internal thread support moves to a second position.

In some embodiments, the end of the push rod away from the internally threaded bracket is provided with a cushion pad.

In some embodiments, a torsion spring is arranged between the door body and the casing to normally drive the door body to move towards the direction of opening the open opening.

In some embodiments, dampers are disposed on the rotating shafts of the door body and the housing to apply a damping force when the door body opens the open opening.

In some embodiments, the opening is located on a side wall of the housing, and the rotating shaft of the door body is located on a lower side wall of the opening.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural view of a cooking appliance according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a door pushing mechanism according to an embodiment of the present invention;

fig. 3 is a schematic structural view of another angle of the door pushing mechanism according to the embodiment of the present invention;

fig. 4 is a schematic partial cross-sectional view of a cooking appliance according to an embodiment of the present invention;

FIG. 5 is an enlarged view of a portion of FIG. 4 at A;

fig. 6 is a schematic structural diagram of another angle of the door pushing mechanism according to the embodiment of the present invention.

Reference numerals:

in the cooking appliance 1000, a cooking process is performed,

the housing 100, the open opening 110, the through hole 120,

the door body 200 is formed in a shape of a circular ring,

a door pushing mechanism 300, a driving motor 310, a screw 320, a push rod 330, a cushion 332,

an internally threaded bracket 340, a mounting groove 341, a communication port 3411, an extension port 3412, a first groove segment 3413,

an elastic member 350, a guide bracket 360, a guide hole 361, a guide tube 362, a first section 3621, a second section 3622, a first position switch 370, a second position switch 380,

a first position F1, a second position F2.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

A cooking appliance 1000 according to an embodiment of the present invention is described below with reference to fig. 1 to 6.

As shown in fig. 1 to 6, a cooking appliance 1000 according to an embodiment of the present invention includes a housing 100, a door body 200, and a door pushing mechanism 300.

Specifically, referring to fig. 1, the housing 100 defines a containing chamber that can contain food. The case 100 has an opening 110 communicating with the storage chamber, food can be placed in the storage chamber through the opening 110, food can be taken out from the storage chamber through the opening 110, and the door 200 is rotatably provided at the opening 110 to open or close the opening 110.

As shown in fig. 2, the door pushing mechanism 300 includes a driving motor 310, a screw rod 320, a push rod 330 and an internal thread support 340, the driving motor 310 is disposed on the casing 100, one end of the screw rod 320 is connected to an output shaft of the driving motor 310, the internal thread support 340 has an internal thread hole, the screw rod 320 is disposed in the internal thread hole and is matched with an internal thread in the internal thread hole to drive the internal thread support 340 to move along a length direction of the screw rod 320, one end of the push rod 330 is connected to the internal thread support 340, and when the internal thread support 340 moves along the screw rod 320 towards a direction away from the driving motor 310, the other end of the push rod 330 is adapted to contact with the door body 200 and push the door body.

It can be understood that the driving motor 310 is operated to drive the screw 320 to rotate, the screw 320 drives the internal screw bracket 340 to move along the length direction of the screw 320 by cooperating with the internal thread in the internal screw hole of the internal screw bracket 340, and the movement of the internal screw bracket 340 can drive the push rod 330 to move along the length direction of the screw 320. When the internal thread bracket 340 moves along the direction that the lead screw 320 faces away from the driving motor 310, the internal thread bracket 340 drives the push rod 330 to move along the direction that the lead screw 320 faces away from the driving motor 310, the other end of the push rod 330 can contact with the door body 200 and push the door body 200, and the door body 200 can be opened at a certain angle, so that the door body 200 can be opened to the maximum angle by hands to place food or take out food. When the open opening 110 is located at the side of the cooking appliance 1000 and the rotating shaft of the door body 200 is located at the lower side of the open opening 110, after the door body 200 is opened by a certain angle, the door body rotates downwards to a position of opening a maximum angle due to gravity, so that the open opening 110 is opened; when the internal thread bracket 340 moves towards the direction close to the driving motor 310 along the lead screw 320, the internal thread bracket 340 drives the push rod 330 to move towards the direction close to the driving motor 310 along the lead screw 320, the push rod 330 resets, and the door body 200 can close the opening 110.

An elastic part 350 is arranged between the internal thread support 340 and at least one of the two ends of the screw 320, that is, the elastic part 350 can be arranged between the internal thread support 340 and the end of the screw 320 close to the driving motor 310, the elastic part 350 can be arranged between the internal thread support 340 and the end of the screw 320 far from the driving motor 310, the elastic part 350 can be arranged between the internal thread support 340 and the two ends of the screw 320, and the elastic part 350 is sleeved on the screw 320. The elastic member 350 may buffer the internally threaded bracket 340, and when the internally threaded bracket 340 moves to the elastic member 350, the elastic member 350 may provide a resistance to the internally threaded bracket 340, so that the internally threaded bracket 340 may be slowly stopped.

In the prior art, in order to solve the problem that the handle of the cooking utensil 1000 collides with the body and occupies space, a hidden handle is mostly adopted, namely, the surface of the door body 200 is flat, the handle is embedded in the door body 200, and the hidden handle has the defects that the handle position is not easy to clean and oil stain and dust are easy to accumulate, and the hidden handle also has the defect of influencing the appearance effect of the door body 200. In addition, the hidden handle is easy to heat up, which causes the temperature of the handle to be higher.

And according to the utility model discloses cooking utensil 1000, through setting up sliding door mechanism 300, let driving motor 310 work drive lead screw 320 rotate, lead screw 320 moves along the direction that driving motor 310 was kept away from to lead screw 320 orientation with drive internal thread support 340 through the interior screw-thread fit with the internal screw-thread hole of internal thread support 340, the removal of internal thread support 340 can drive push rod 330 and move along the direction that driving motor 310 was kept away from to lead screw 320 orientation, push rod 330's the other end and the contact of a body 200 and promote a body 200 so that a body 200 opens opening 110, still be equipped with elastic component 350 between at least one end in the both ends of internal thread support 340 and lead screw 320. Therefore, the utility model discloses a no handle on cooking utensil 1000's the door body 200 to the door body 200 outward appearance effect is better, and the clearance of being convenient for can avoid greasy dirt and dust to gather in the handle, also can avoid the higher problem of handle department temperature.

Furthermore, the utility model discloses a cooking utensil 1000, sliding door mechanism 300 simple structure, the processing and the installation of being convenient for to can save the cost. In addition, the elastic member 350 may buffer the internally threaded bracket 340, and when the internally threaded bracket 340 moves to the elastic member 350, the elastic member 350 may provide a resistance to the internally threaded bracket 340, so that the internally threaded bracket 340 may be slowly stopped.

In some embodiments of the present invention, as shown in fig. 3, a mounting groove 341 is disposed on the internal thread bracket 340, one end of the push rod 330 is clamped in the mounting groove 341, the mounting groove 341 has a communication port 3411 for mounting the push rod 330, the mounting groove 341 further has an extension port 3412 for extending the other end of the push rod 330, the extension port 3412 is communicated with the communication port 3411, it should be noted that the extension direction of the axis of the extension port 3412 is the same as the extension direction of the push rod 330, so that the push rod 330 can extend from the extension port 3412 to contact with the door body 200, and the extension direction of the axis of the communication port 3411 can be perpendicular to the extension direction of the axis of the extension port 3412.

Further, referring to fig. 3, in a direction from the communication port 3411 of the mounting groove 341 to the wall surface opposite to the communication port 3411, that is, in an extending direction of the axis of the communication port 3411, the mounting groove 341 includes a first groove section 3413 and a second groove section in this order, and the width of the first groove section 3413 is gradually reduced, and the width of the second groove section is the same as the width of an end of the first groove section 3413 adjacent to the second groove section, whereby it is possible to facilitate mounting of the push rod 330 to the mounting groove 341, the push rod 330 can be gradually mounted from the first groove section 3413 to the second groove section, and then the second groove section is snapped thereon, so that the push rod 330 can be reliably mounted on the female screw holder 340.

According to some embodiments of the present invention, as shown in fig. 2, the door pushing mechanism 300 further includes a guiding bracket 360, the guiding bracket 360 is disposed at the other end of the screw rod 320, and the guiding bracket 360 has a guiding hole 361 for the push rod 330 to pass through. It can be understood that the guide bracket 360 can support the push rod 330, and the guide hole 361 can provide a guide for the push rod 330, so that the push rod 330 can more accurately contact the door body 200 and push the door body 200 to open the opening 110 of the door body 200.

In some embodiments of the present invention, one of the surface of the guiding frame 360 facing the screw 320 and the surface of the screw 320 facing the guiding frame 360 is provided with a positioning protrusion, and the other is provided with a positioning groove matched with the positioning protrusion. Therefore, the guide holder 360 and the lead screw 320 can be reliably connected together, and the probability of the guide holder 360 and the lead screw 320 being loosened can be reduced.

According to some embodiments of the present invention, as shown in fig. 4-5, the guiding bracket 360 further includes a guiding tube 362, the guiding tube 362 is disposed in the guiding hole 361, one end of the guiding tube 362 far away from the internal thread bracket 340 exceeds the guiding hole 361, the push rod 330 is disposed in the guiding tube 362, the casing 100 is provided with a through hole 120, and one end of the guiding tube 362 far away from the internal thread bracket 340 is disposed in the through hole 120. It will be appreciated that the guide tube 362 may provide a greater support area for the push rod 330, and thus, the guide tube 362 may better support the push rod 330 and may more accurately provide guidance for the push rod 330.

According to some embodiments of the present invention, as shown in fig. 4-5, the guiding tube 362 includes a first section 3621 and a second section 3622 connected in sequence, the first section 3621 is located at an end of the second section 3622 away from the internal threaded bracket 340, an outer diameter of the first section 3621 is smaller than an outer diameter of the second section 3622, the outer diameter of the second section 3622 is larger than an inner diameter of the through hole 120, and the first section 3621 is disposed in the through hole 120. Therefore, when the first section 3621 is inserted into the through hole 120, the second section 3622 can stop the end surface of the through hole 120 close to the second section 3622, so that the housing 100 can limit the guide tube 362.

In some embodiments of the present invention, as shown in fig. 6, the female screw bracket 340 moves between the first position F1 and the second position F2 along the length direction of the lead screw 320, and the door pushing mechanism 300 further includes a first position switch 370 for detecting whether the female screw bracket 340 moves to the first position F1 and a second position switch 380 for detecting whether the female screw bracket 340 moves to the second position F2. It should be noted that the internal thread support 340 moves between the first position F1 and the second position F2 along the length direction of the lead screw 320 so as to drive the push rod 330 to open the door 200, the first position switch 370 can detect whether the internal thread support 340 moves to the first position F1, and the second position switch 380 can detect whether the internal thread support 340 moves to the second position F2.

When the internal thread bracket 340 moves along the lead screw 320 in the direction away from the driving motor 310, the second position switch 380 detects the internal thread bracket 340 firstly, and the first position switch 370 detects the internal thread bracket 340 later; when the internally threaded bracket 340 moves toward the direction approaching the driving motor 310 along the lead screw 320, the first position switch 370 detects the internally threaded bracket 340 first, and the second position switch 380 detects the internally threaded bracket 340 later. The first position switch 370 and the second position switch 380 may feed back the detection information to the driving motor 310, for example, after the cooking appliance 1000 is restarted due to unexpected sudden power failure, the driving motor 310 may determine, by the information fed back to the first position switch 370 or the second position switch 380, that the internal thread support 340 continues to move along the lead screw 320 toward the driving motor 310 or moves along the lead screw 320 toward the direction away from the driving motor 310.

Specifically, when the cooking appliance 1000 is restarted, the feedback information comes only from the second position switch 380, and the first position switch 370 does not detect the signal yet, it can be determined that the internally threaded bracket 340 starts to move from the second position F2 and does not move to the first position F1, and at this time, the driving motor 310 can drive the internally threaded bracket 340 to continue to move along the lead screw 320 in the direction away from the driving motor 310; when the cooking appliance 1000 is restarted, the feedback information comes from the first position switch 370 only, and the second position switch 380 has not detected a signal yet, it can be determined that the internally threaded bracket 340 has started to move from the first position F1 and has not moved to the second position F2, and at this time, the driving motor 310 can drive the internally threaded bracket 340 to continue to move along the lead screw 320 toward the direction close to the driving motor 310; when the cooking appliance 1000 is restarted, the feedback information comes from the first position switch 370 and the second position switch 380, and the feedback of the first position switch 370 is earlier than the feedback of the second position switch 380, it can be determined that the internally threaded bracket 340 moves from the first position F1 to the second position F2, and at this time, the driving motor 310 can drive the internally threaded bracket 340 to move along the lead screw 320 in a direction away from the driving motor 310; when the cooking appliance 1000 is restarted, the feedback information comes from the first position switch 370 and the second position switch 380, and the feedback of the second position switch 380 is earlier than the feedback of the first position switch 370, it can be determined that the internally threaded bracket 340 moves from the second position F2 to the first position F1, and at this time, the driving motor 310 can drive the internally threaded bracket 340 to move along the lead screw 320 toward the direction close to the driving motor 310.

Further, the first position switch 370 and the second position switch 380 may be directly disposed on the casing 100, or a bracket may be disposed on the door pushing mechanism 300, and the bracket may be disposed on the casing 100, and the first position switch 370 and the second position switch 380 are disposed on the bracket, where the specific installation manner of the first position switch 370 and the second position switch 380 is not limited. When the door pushing mechanism 300 is provided with a bracket, the internally threaded bracket 340 may be slidably provided on the bracket, and of course, the guide bracket 360 may be connected to the bracket. When the bracket is not provided, the internally threaded bracket 340 may be slidably provided on the housing 100.

In some embodiments of the present invention, as shown in fig. 2, a buffer pad 332 is disposed at an end of the push rod 330 away from the screw 320. The cushion pad 332 can play a role in buffering the contact pushing of the push rod 330 and the door body 200, so that on one hand, the vibration noise generated when the push rod 330 is pushed in contact with the door body 200 is reduced, and on the other hand, the damage to each other caused by the contact pushing of the push rod 330 and the door body 200 can also be reduced.

According to some embodiments of the present invention, a torsion spring is disposed between the door 200 and the casing 100 to normally drive the door 200 to move toward the direction of opening the opening 110. It should be noted that, when the opening direction of the door 200 is not from top to bottom, the opening of the door 200 may lack the assistance of gravity, and the addition of the torsion spring may assist the door 200 to open the opening 110.

In some embodiments of the present invention, dampers are provided on the rotational shafts of the door body 200 and the case 100 to apply a damping force when the door body 200 opens the opening 110. Therefore, the friction force of the relative rotation of the door body 200 and the shell 100 can be increased, and the resistance of the relative rotation of the door body 200 and the shell 100 can be increased, so that the door body 200 can be opened slowly, and the damage to the door body 200 or the shell 100 caused by the rapid opening of the door body 200 can be avoided.

In some embodiments of the present invention, the opening 110 is located on the sidewall of the housing 100, thereby facilitating the placement and access of food. The rotation axis of the door body 200 is located at the lower side of the open opening 110, whereby the opening of the door body 200 can be facilitated. Further, the door pushing mechanism 300 pushes one end of the door body 200 away from the rotation axis, and the door pushing mechanism 300 is located at a position of the housing 100 away from the rotation axis of the door body 200, whereby the door pushing mechanism 300 can push the door body 200 more easily according to the lever principle.

According to some embodiments of the utility model, casing 100 includes the front bezel, is equipped with through-hole 120 on the front bezel, and push rod 330 is suitable for wearing out from through-hole 120 and contacts with a body 200, and push rod 330 and the contact of a body 200 are convenient for in setting up of through-hole 120, also can provide the direction for push rod 330.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean 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 present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. 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 invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A cooking appliance, comprising:

the device comprises a shell, a first fixing piece and a second fixing piece, wherein the shell defines a containing cavity and is provided with an opening communicated with the containing cavity;

the door body is rotatably arranged at the open opening to open or close the open opening;

the door pushing mechanism comprises a driving motor, a screw rod, a push rod and an internal thread bracket, the driving motor is arranged on the shell, one end of the screw rod is connected with an output shaft of the driving motor, the internal thread support is provided with an internal thread hole, the screw rod penetrates through the internal thread hole and is matched with the internal thread in the internal thread hole to drive the internal thread support to move along the length direction of the screw rod, one end of the push rod is connected with the internal thread support, when the internal thread support moves towards the direction far away from the driving motor along the screw rod, the other end of the push rod is suitable for contacting with the door body and pushing the door body to open the opening, and an elastic piece is arranged between the internal thread support and at least one of the two ends of the screw rod, and the elastic piece is sleeved on the screw rod.

2. The cooking utensil of claim 1, wherein the internal thread support is provided with a mounting groove, one end of the push rod is clamped in the mounting groove, the mounting groove is provided with a communication port for mounting the push rod, the mounting groove is further provided with an extension port for extending the other end of the push rod, and the extension port is communicated with the communication port.

3. The cooking appliance according to claim 2, wherein the mounting groove includes a first groove section and a second groove section in order in a direction from the communication port of the mounting groove to the wall surface opposite to the communication port, and a width of the first groove section is gradually reduced, and a width of the second groove section is the same as a width of an end of the first groove section adjacent to the second groove section.

4. The cooking appliance of claim 1, wherein the door pushing mechanism further comprises:

the guide bracket is arranged at the other end of the screw rod, and a guide hole for the push rod to pass through is formed in the guide bracket.

5. The cooking appliance according to claim 4, wherein one of a surface of the guide bracket facing the lead screw and a surface of the lead screw facing the guide bracket is provided with a positioning protrusion, and the other is provided with a positioning groove engaged with the positioning protrusion.

6. The cooking appliance according to claim 4, wherein the guide bracket further comprises a guide tube, the guide tube is inserted into the guide hole, one end of the guide tube, which is far away from the internal thread bracket, extends out of the guide hole, the push rod is inserted into the guide tube, a through hole is formed in the housing, and one end of the guide tube, which is far away from the internal thread bracket, is inserted into the through hole.

7. The cooking appliance according to claim 6, wherein the guide tube comprises a first section and a second section which are connected in sequence, the first section is located at one end of the second section, which is far away from the internal thread support, the outer diameter of the first section is smaller than that of the second section, the outer diameter of the second section is larger than the inner diameter of the through hole, and the first section is arranged in the through hole in a penetrating manner.

8. The cooking appliance of claim 1, wherein the internally threaded support moves between a first position and a second position along a length of the wire rod, the push door mechanism further comprising: the device comprises a first position switch for detecting whether the internal thread support moves to a first position and a second position switch for detecting whether the internal thread support moves to a second position.

9. The cooking appliance of claim 1, wherein an end of the push rod remote from the internally threaded support is provided with a cushion.

10. The cooking appliance according to claim 1, wherein a torsion spring is disposed between the door and the housing to normally drive the door to move toward the direction of opening the open opening.

11. The cooking appliance according to claim 10, wherein dampers are provided on the rotating shafts of the door body and the case to apply a damping force when the door body opens the open opening.

12. The cooking appliance according to claim 1, wherein the open opening is located on a side wall of the housing, and the rotating shaft of the door body is located on a lower side wall of the open opening.