Oven door and microwave oven comprising same

Abstract

The utility model relates to the technical field of microwave equipment, in particular to an oven door and a microwave oven comprising the same, the oven door comprises a door body and a door hook, the door hook comprises a body plate, one side wall of the body plate protrudes to form a raised line, the raised line is bent relative to the body plate to form an extending part, the body plate is fixed inside the door body, and the extending part penetrates through the side wall of the door body. The door hook adopts the design that the body plate and the extending part are integrally formed, so that the whole structure is more stable and reliable, the normal work of the microwave oven cannot be influenced by deformation or damage in the long-term use process, a traditional plastic door hook which is insufficient in structural strength and very easy to break is replaced, and the door hook is simple in structure and convenient to use. The influence of the door hook on the normal use of the microwave oven in the prior art is reduced, the maintenance cost and the dissatisfaction degree of a user are reduced, the long-term use requirement of the microwave oven is met, and the problem that the door hook of the microwave oven in the prior art is easy to break is effectively solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a microwave equipment technical field especially relates to a furnace door and contains its microwave oven. BACKGROUND

[0002] As a kind of widely used household appliance, the safety and reliability of microwave oven have been the core consideration of product design. In order to ensure the safety protection of microwave leakage, multiple micro switches are designed between the furnace door and the whole machine circuit of microwave oven, for real-time monitoring the opening and closing state of furnace door. When the furnace door is tightly closed, the door hook on the furnace door triggers the micro switch accurately, ensures that the circuit is normally closed, and the microwave oven can run smoothly;And once the furnace door is opened, the door hook releases the switch immediately, immediately cuts off the circuit, to prevent microwave leakage, and protect the user safety.

[0003] However, the plastic door hook extended on the door frame of existing microwave oven, as the key component to trigger micro switch, its structural strength is often difficult to meet the stringent requirements of long-term use. In the process of product transportation, handling or accidental falling, the door hook is broken due to improper external force. This damage not only affects the normal work of microwave oven, causes the user to use the product conveniently, but also increases the maintenance cost and user's dissatisfaction, which has a negative impact on the market reputation and brand image of the product.

[0004] Therefore, it is urgent to design a furnace door capable of preventing the door hook from being easily broken. UTILITY MODEL CONTENT

[0005] Therefore, the utility model provides a furnace door and contains its microwave oven, to solve the problem of easy breakage of door hook in prior art microwave oven.

[0006] To solve the above technical problems, the utility model adopts one technical scheme to provide a furnace door, the furnace door includes door body and door hook, the door hook includes body plate, one side wall of the body plate is protruded to form convex strip, the convex strip is bent relative to the body plate to form extension part, the body plate is fixed in the interior of the door body, and the extension part penetrates the side wall of the door body.

[0007] As an embodiment of the utility model, the door body includes first door frame and second door frame, the first door frame and the second door frame are connected and enclosed, the body plate is fixed to the side wall of the first door frame and the second door frame, the second door frame is provided with through hole corresponding to the door hook, the extension part penetrates the through hole and protrudes from the second door frame.

[0008] As an embodiment of the utility model, the door body further comprises a mounting bracket, the mounting bracket is fixed to the side wall opposite to the first door frame and the second door frame, the mounting bracket is formed with a mounting groove, the groove bottom of the mounting groove is opposite to the second door frame, and the body plate is fixed in the mounting groove.

[0009] As an embodiment of the utility model, one side of the body plate opposite to the extension part is bent to form a flange, the flange abuts against the side wall of the mounting groove and is perpendicular to the bottom wall of the mounting groove, and the flange is parallel to the plane where the extension part is located.

[0010] As an embodiment of the utility model, the furnace door further comprises a connecting piece, the body plate is provided with a mounting hole, the connecting piece passes through the mounting hole and is fixed with the bottom wall of the mounting groove to fix the door hook.

[0011] As an embodiment of the utility model, the extension part is perpendicular to the body plate.

[0012] As an embodiment of the utility model, the flange is perpendicular to the body plate, and the flange is parallel to the extension part.

[0013] As an embodiment of the utility model, the furnace door further comprises at least one pair of hinges, each pair of the hinges is arranged on the upper and lower sides or the left and right sides inside the furnace door and is used for being connected with the microwave oven to close or open the microwave oven.

[0014] As an embodiment of the utility model, the door hook is made of any one, two or more materials of stainless steel, titanium and titanium alloy, nickel-based alloy, cobalt-based alloy, tantalum and tantalum alloy, zirconium and zirconium alloy.

[0015] The utility model provides a microwave oven for solving above-mentioned technical problem, the microwave oven includes microswitch and above-mentioned furnace door, the microswitch is arranged in the inside of the microwave oven, the door hook forms electric contact with the microswitch when the furnace door is closed to control the circuit on-off state of the microwave oven.

[0016] Compared with the prior art, the furnace door and the microwave oven comprising the same provided by the utility model embodiment have the following advantages:

[0017] 1. The oven door provided by the utility model, through the door hook, the hardness and the strength of its material are enhanced, through the design of integrally forming the body plate and the extension part, the overall structure is more stable and reliable, the normal work of the microwave oven is ensured in the long-term use process, the traditional plastic door hook which is not enough in structural strength and is very easy to break is replaced, the structure is simpler, and the door hook is more convenient to disassemble and replace, the influence of the door hook in the prior art on the normal use of the microwave oven is reduced, the maintenance cost and the dissatisfaction of the user are reduced, and the long-term use requirement of the microwave oven is met. Therefore, the problem of easy breakage of the door hook of the microwave oven in the prior art is effectively solved.

[0018] 2. The oven door provided by the utility model, the first door frame and the second door frame are connected and enclosed, the overall strength and stability of the door body are ensured and improved, and the hollow structure inside not only reduces the weight of the door body, but also provides enough space for installing the door hook and other parts. In addition, the part of the extension part protrudes from the second door frame and is exposed outside the hollow structure formed by the first door frame and the second door frame, which ensures that the extension part can effectively contact the microswitch of the microwave oven circuit, and at the same time, the extension part will not be disturbed by other parts inside the door body.

[0019] 3. The oven door provided by the utility model, the mounting groove formed on the mounting bracket provides a specific mounting space for the body plate of the door hook, provides an additional support structure for the installation of the door hook, so that the body plate can be firmly fixed in the mounting groove, avoiding shaking or misplacement during installation, ensuring the accuracy and reliability of the door hook; in addition, the body plate can also be provided with a positioning reference, the guiding effect of the mounting groove enables the door hook to be smoothly positioned during installation, improving the installation efficiency, and at the same time, it can also ensure that the extension part can accurately pass through the through hole on the second door frame; furthermore, the mounting groove can prevent the door hook from being damaged or broken due to impact from other parts during installation or use, thereby prolonging the service life of the door hook.

[0020] 4. The oven door provided by the utility model, the turned edge formed by bending the body plate provides a stable support structure for the extension part, when the door hook is impacted by external force from the extension part, the turned edge can act as an additional structure layer, which can absorb and disperse part of the impact force, playing a buffering role; on the other hand, the existence of the turned edge can form a gap or buffer layer between the body plate and the mounting groove, which helps to reduce the stress of the door hook when it is impacted during the opening and closing of the oven door. Therefore, the buffering effect provided by the structure of the turned edge protects the door hook itself and the door body or structure connected thereto from damage.

[0021] 5、The utility model provides a furnace door, adopt the fixed mode of connecting piece to fix the door hook in the installation groove, can make the door hook more convenient when needing maintenance and replacement. The user only needs to loosen the connecting piece, can easily take down the door hook from the furnace door, carries out cleaning, maintenance or replacement operation, helps to find and handle the potential problem of door hook in time, thereby prolongs its service life. At the same time, when the connecting piece is worn or damaged due to long-term use, the user can also easily replace it, ensure the continuous stable operation of the furnace door.

[0022] 6、The utility model provides a furnace door, the extension part and the body board are perpendicular to each other, that is, the body board forms the extension part perpendicular to it by the 90 degrees bending of the convex strip, makes the overall structure of the door hook more stable and reliable, can also make the body board can provide the maximum support for the extension part, makes the extension part can stably extend and trigger the microswitch of the microwave oven.

[0023] 7、The utility model provides a furnace door, by making the turn -up and the body board perpendicular to each other, and the turn -up is parallel with the extension part, can make the overall structure of the door hook more stable and reliable, can make the turn -up maximumly absorb and disperse the impact force generated when the extension part triggers the microswitch, provide the maximum buffering effect.

[0024] 8、The utility model provides a furnace door, the hinge is as the connecting component between the furnace door and the microwave oven main body, makes the furnace door relative to the microwave oven main body carry out the rotary motion, thereby realizes the closure and opening of the microwave oven, the rotary motion of the hinge realizes that the furnace door not only makes the furnace door can closely fit in the opening of the microwave oven, ensures the closed nature in the cooking process of microwave, also is convenient for the user to open the furnace door and operate easily when needing.

[0025] 9、The utility model provides a furnace door, the material of the door hook is set as any one, two or more of metal, alloy, POM material, hard plastic, makes the door hook have high strength, corrosion resistance, durability and stability, first, can make the door hook can bear various pressure and impact force in the use process, second, can bear the thermal shock generated in the heating process of the microwave oven, third, can resist the corrosion of various corrosive substances that the microwave oven even the environment in the kitchen can contain. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description, obviously, the drawings in the following description only some embodiments of the utility model, for those skilled in the art, under the premise of not paying the creative labor, can also obtain other drawings according to these drawings.

[0027] Wherein:

[0028] Figure 1 A perspective structural schematic view of the furnace door is shown in the embodiment one of the utility model;

[0029] Figure 2 A perspective structural schematic view of the furnace door is shown in the embodiment one of the utility model;

[0030] Figure 3 A perspective structural schematic view of the furnace door is shown in the embodiment one of the utility model Figure 1 ;

[0031] Figure 4 A perspective structural schematic view of the furnace door is shown in the embodiment one of the utility model Figure 1 ;

[0032] Figure 5 A perspective structural schematic view of the furnace door is shown in the embodiment one of the utility model Figure 2 ;

[0033] Figure 6 A perspective structural schematic view of the furnace door is shown in the embodiment one of the utility model

[0034] Figure 7 A perspective structural schematic view of the furnace door is shown in the embodiment one of the utility model Figure 2 ;

[0035] Figure 8 A perspective structural schematic view of the furnace door is shown in the embodiment one of the utility model;

[0036] Figure 9 A perspective structural schematic view of the furnace door is shown in the embodiment one of the utility model; Figure 8

[0037] A perspective structural schematic view of the furnace door is shown in the embodiment one of the utility model; Figure 10 Figure 3 A perspective structural schematic view of the furnace door is shown in the embodiment one of the utility model;

[0038] Figure 11 A perspective structural schematic view of the furnace door is shown in the embodiment one of the utility model;

[0039] Explanation of the drawing mark:

[0040] 1, furnace door; 2, microwave oven;

[0041] 11, door body; 12, door hook; 13, connecting piece; 14, hinge;

[0042] 111, first door frame; 112, second door frame; 113, mounting bracket; 121, body plate; 122, extension ​

[0043] outlet; 123, flange;

[0044] 1121, through hole; 1131, mounting groove; 1211, mounting hole. DETAILED DESCRIPTION

[0045] For the purpose of promoting an understanding of the present application, the present application will be described in greater detail below with reference to the drawings. In the drawings, embodiments of the present application are shown. However, the present application can be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and fully convey the scope of the present application to those skilled in the art.

[0046] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0047] It is to be understood that the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. It is also to be understood that the term "including" or "comprising" or "having" and the like, means the inclusion of the stated features, integers, steps, operations, components, parts, or the like to the specified composition or process, but does not exclude or be limited to the presence or addition of one or more other features, integers, steps, operations, components, parts, or the like.

[0048] It is to be understood that when a component is referred to as being "connected" to another component, it can be directly connected to the other component, or intervening components can be present. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only. In the present application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," "longitudinal," and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not intended to limit the indicated devices, elements or components to having a particular orientation, or to being constructed and operated in a particular orientation. In addition, in addition to indicating the orientation or positional relationship, the above-mentioned terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain attachment relationship or connection relationship in some cases. For those skilled in the art, the specific meaning of these terms in the present application can be understood according to the specific circumstances.

[0049] In addition, the terms "set", "provided with", "connected", "linked" should be understood broadly. For example, it can be fixed connection, detachable connection, or integral structure; it can be mechanical connection, or electrical connection; it can be directly linked, or indirectly linked through an intermediate medium, or internal communication between two devices, elements or components. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0050] Embodiment one

[0051] Please refer to Figure 1 and Figure 2 The first embodiment of the utility model discloses a furnace door 1, can and not limited to be used for the switch door of microwave oven 2. The furnace door 1 includes door body 11 and door hook 12, the door hook 12 includes body plate 121, one side wall of the body plate 121 is formed with convex strip, the convex strip is bent relative to the body plate 121 and forms extension 122, the body plate is fixed to the inside of the door body 11, and the extension 122 penetrates the side wall of the door body 11.

[0052] It can be understood that the door hook 12 is bent to form the extension 122 through the body plate 121, which optimizes the structure of the door hook, enhances the strength of the door hook 12 against external force from the structure, ensures that it will not affect the normal work of the microwave oven due to deformation or damage during long-term use, replaces the conventional plastic door hook which is not enough in structural strength and is very easy to break, is simple in structure and more convenient to disassemble and replace, reduces the influence of the door hook in the prior art on the normal use of the microwave oven 2, reduces the maintenance cost and user dissatisfaction, and meets the long-term use requirement of the microwave oven 2. Therefore, the furnace door 1 provided by the utility model effectively solves the problem that the door hook of the microwave oven 2 in the prior art is easy to break.

[0053] Optionally, the door hook is made of any one, two or more of metal, alloy, POM material and hard plastic.

[0054] Specifically, the material of the door hook 12 is any one, two or more of metal, alloy, POM material and hard plastic, so that the door hook 12 has high strength, corrosion resistance, durability and stability. First, the door hook 12 can withstand various pressures and impact forces during use. Second, it can withstand the thermal shock generated during the heating process of the microwave oven 2. Third, it can resist corrosion of various corrosive substances that may be contained in the environment of the microwave oven 2 or even the kitchen. Therefore, the reliability of the door hook 12 is ensured, and the service life of the door hook 12 is prolonged.

[0055] Further, please refer to Figure 1 and Figure 3As shown, the extension portion is perpendicular to the body plate.

[0056] Specifically, referring to Figure 3 As shown, the extension portion 122 is a strip-shaped extension arm, i.e. the body plate 121 is bent 90° by a convex strip to form the extension portion 122 perpendicular to it, so that the overall structure of the door hook 12 is more stable and reliable, and the body plate 121 can provide the maximum support for the extension portion 122, so that the extension portion 122 can be stably extended and trigger the micro switch of the microwave oven 2.

[0057] It can be understood that the door hook 12 is designed to be integrally formed with the body plate 121 and the extension portion 122, so that the overall structure is more stable and reliable, which not only improves the durability of the door hook, but also ensures that it will not affect the normal operation of the microwave oven 2 due to deformation or damage during long-term use. Among them, the body plate 121 is mainly responsible for firmly fixing the door hook 12 inside the door body 11, ensuring that the door hook will not loosen or fall off during use, in addition, the body plate 121 can also provide necessary support for the extension portion 122, and the part of the body plate 121 is bent 90° to form the extension portion 122, which can provide the maximum support for the extension portion 122, so that the extension portion 122 can be stably extended and trigger the micro switch of the microwave oven 2.

[0058] Further, referring to Figure 4 As shown, the door body 11 includes a first door frame 111 and a second door frame 112, the first door frame 111 and the second door frame 112 are connected and enclosed, the body plate 121 is fixed to the side wall of the first door frame 111 opposite to the second door frame 112, the second door frame 112 is provided with a through hole 1121 corresponding to the door hook 12, and the extension portion 122 passes through the through hole 1121 and protrudes from the second door frame 112.

[0059] Specifically, the first door frame 111 and the second door frame 112 are both made of metal material, and optionally, the material of the first door frame 111 and the second door frame 112 is any one, two or more of stainless steel, titanium and titanium alloy, nickel-based alloy, cobalt-based alloy, tantalum and tantalum alloy, zirconium and zirconium alloy. Enhance the structural strength characteristics of the door body 11, so that it is not easy to break, and the door hook 12 installed on the first door frame 111 is also not easy to break.

[0060] Specifically, the first door frame 111 and the second door frame 112 can be connected and enclosed together by means of screws, welding, riveting, lock tongue, lock catch and the like, forming an internally hollow structure, fixing the door hook 12 in the structure through the body plate 121, and passing the protruding part 122 out of the through hole 1121 of the second door frame 112, and part of the protruding part 122 protruding out of the second door frame 112 and exposed outside the hollow structure formed by the first door frame 111 and the second door frame 112.

[0061] It can be understood that the first door frame 111 and the second door frame 112 can be connected and enclosed by various means to ensure and improve the overall strength and stability of the door body 11, and the internally hollow structure not only reduces the weight of the door body 11, but also provides sufficient space for installing the door hook 12 and other components. In addition, the design that part of the protruding part 122 protrudes out of the second door frame 112 and is exposed outside the hollow structure formed by the first door frame 111 and the second door frame 112 ensures that the protruding part 122 can effectively contact the microswitch of the microwave oven 2 whole machine circuit, and at the same time, it will not be disturbed by other components inside the door body 11.

[0062] Further, please refer to Figure 4 , Figure 5 and Figure 6 , the door body 11 further comprises a mounting bracket 113 fixed to the side wall of the first door frame 111 opposite to the second door frame 112, the mounting bracket 113 is formed with a mounting groove 1131, the groove bottom of the mounting groove 1131 is opposite to the second door frame 112, and the body plate 121 is fixed in the mounting groove 1131.

[0063] Specifically, the mounting bracket 113 is fixed to the upper part of the first door frame 111 and the side wall opposite to the second door frame 112, the mounting bracket 113 is made of metal material, has high strength, enhances the stability of the structure, the mounting groove 1131 formed provides positioning and guiding effect for the installation of the door hook 12 to facilitate maintenance and replacement, and also has a certain protection effect.

[0064] It can be understood that the mounting groove 1131 formed on the mounting bracket 113 provides a specific mounting space for the body plate 121 of the door hook 12, provides an additional support structure for the installation of the door hook 12, so that the body plate 121 can be firmly fixed in the mounting groove 1131, avoiding shaking or misplacement during installation, ensuring the accuracy and reliability of the door hook 12; in addition, a positioning reference is provided for the body plate 121, and the guiding effect of the mounting groove 1131 enables the door hook 12 to be smoothly positioned during installation, improving installation efficiency, while also ensuring that the protruding part 122 can accurately pass through the through hole 1121 on the second door frame 112; furthermore, the mounting groove 1131 can prevent the door hook 12 from being damaged or broken by the impact of other components during installation or use, thereby prolonging the service life of the door hook 12.

[0065] Further, please refer to Figures 5-8 It can be understood that the mounting groove 1131 formed on the mounting bracket 113 provides a specific mounting space for the body plate 121 of the door hook 12, provides an additional support structure for the installation of the door hook 12, so that the body plate 121 can be firmly fixed in the mounting groove 1131, avoiding shaking or misplacement during installation, ensuring the accuracy and reliability of the door hook 12; in addition, a positioning reference is provided for the body plate 121, and the guiding effect of the mounting groove 1131 enables the door hook 12 to be smoothly positioned during installation, improving installation efficiency, while also ensuring that the protruding part 122 can accurately pass through the through hole 1121 on the second door frame 112; furthermore, the mounting groove 1131 can prevent the door hook 12 from being damaged or broken by the impact of other components during installation or use, thereby prolonging the service life of the door hook 12.

[0066] Further, the flange 123 is perpendicular to the body plate 121, and the flange 123 is parallel to the protruding part 122.

[0067] Specifically, the flange 123 formed by bending the body plate 121 provides a stable support structure for the protruding part 122, and when the door hook 12 is impacted by external force from the protruding part 122, the flange 123 can act as an additional structural layer to absorb and disperse part of the impact force, thereby providing a buffering effect; on the other hand, the presence of the flange 123 can form a gap or buffer layer between the body plate 121 and the mounting groove 1131, which helps to reduce the stress on the door hook 12 when it is impacted during the opening and closing of the furnace door 1. Therefore, the buffering effect provided by the structure of the flange 123 protects the door hook 12 itself and the door body 11 or structure connected thereto from damage.

[0068] It can be understood that by making the flange 123 perpendicular to the body plate 121 and the flange 123 parallel to the protruding part 122, the overall structure of the door hook 12 can be made more stable and reliable, and the flange 123 can maximize the absorption and dispersion of the impact force generated by the triggering of the microswitch by the protruding part 122, thereby providing the maximum buffering effect.

[0069] Further, please refer to Figure 7 and Figure 9As shown, the oven door 1 further comprises a connecting piece 13, the body plate 121 is provided with a mounting hole 1211, the connecting piece 13 passes through the mounting hole 1211 and is fixed with the bottom wall of the mounting groove 1131 to fix the door hook 12.

[0070] Optionally, the connecting piece 13 is any one of a screw, a pin, and a bolt.

[0071] Specifically, the door hook 12 is fixed in the mounting groove 1131 by the fixing mode of the connecting piece 13, which can make the door hook 12 more convenient to maintain and replace. The user only needs to loosen the connecting piece 13 to easily take down the door hook from the oven door 1 for cleaning, repairing or replacing, which helps to find and handle potential problems of the door hook 12 in time, thereby prolonging the service life. At the same time, when the connecting piece 13 is worn or damaged due to long-term use, the user can also easily replace it to ensure the continuous and stable operation of the oven door 1.

[0072] Further, referring to Figure 10 As shown, the oven door 1 further comprises at least one pair of hinges 14, each pair of the hinges 14 is arranged on the upper and lower sides or the left and right sides inside the oven door 1 and is used to connect with the microwave oven 2 to close or open the microwave oven 2.

[0073] Specifically, the hinge 14 serves as a connecting component between the oven door 1 and the main body of the microwave oven 2, so that the oven door 1 rotates relative to the main body of the microwave oven 2 to realize the closing and opening of the microwave oven 2. The rotation movement realized by the hinge 14 not only enables the oven door 1 to closely fit at the opening of the microwave oven 2 to ensure the sealing property of microwaves in the cooking process, but also facilitates the user to easily open the oven door 1 for operation when needed.

[0074] Embodiment two

[0075] Referring to Figure 11 As shown, the second embodiment of the utility model discloses a microwave oven 2, the microwave oven 2 includes the oven door 1 in embodiment one, the micro switch is arranged in the inside of the microwave oven 2, the door hook 12 forms electrical contact with the micro switch when the oven door 1 is closed to control the circuit on-off state of the microwave oven 2.

[0076] The microwave oven 2 provided by the second embodiment of the utility model has the same effect as the oven door 1 provided by the first embodiment, and will not be described here

[0077] The technical features of the above embodiments can be combined arbitrarily, and to make the description concise, all possible combinations of the technical features in the above embodiments are not described, but as long as the combinations of the technical features do not exist contradictory, they should be considered as the scope of the present application.

[0078] The above embodiments only express several implementation manners of the application, and the description is more specific and detailed, but it cannot be understood as a limitation on the scope of the utility model patent. It should be pointed out that for ordinary skilled persons in the art, without departing from the concept of the application, several modifications and improvements can be made, which all belong to the protection scope of the application. Therefore, the protection scope of the patent of the application should be subject to the appended claims.

Claims

1. A door for a microwave oven, the door being a switch door, characterized in that: The door body comprises a first door frame and a second door frame, the first door frame and the second door frame are connected and enclosed, the body plate is fixed to the side wall opposite to the second door frame of the first door frame, the second door frame is provided with a through hole corresponding to the door hook, the extension part passes through the through hole and protrudes from the second door frame.

2. The fire door of claim 1, wherein: The door body further comprises a mounting bracket, the mounting bracket is fixed to the side wall opposite to the second door frame of the first door frame, the mounting bracket is formed with a mounting groove, the groove bottom of the mounting groove is opposite to the second door frame, and the body plate is fixed in the mounting groove.

3. The fire door of claim 2, wherein: The body plate and the extension part are perpendicular to each other.

4. The fire door of claim 3, wherein: The door further comprises at least one pair of hinges, each pair of the hinges is arranged on the upper and lower sides or the left and right sides of the door body, and is used for being connected with the microwave oven to close or open the microwave oven.

5. The fire door of claim 3, wherein: The door hook is made of any one, two or more of metal, alloy, POM material and hard plastic.

6. The fire door of claim 1, wherein: The microwave oven comprises a micro switch and the door as claimed in any one of claims 1-9, the micro switch is arranged in the interior of the microwave oven, the door hook forms electrical contact with the micro switch when the door is closed, and the electrical circuit of the microwave oven is controlled to be turned on or off.

7. The fire door of claim 4, wherein: ​ 8. The fire door of claim 1, wherein: ​ 9. The fire door of claim 1, wherein: ​ 10. A microwave oven characterized by comprising: ​

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