CN110856299A

CN110856299A - Cooking appliance and door body thereof

Info

Publication number: CN110856299A
Application number: CN201910918252.5A
Authority: CN
Inventors: 李芳明; 廖波
Original assignee: Guangdong Galanz Enterprises Co Ltd; Guangdong Galanz Microwave Electric Manufacturing Co Ltd
Current assignee: Guangdong Galanz Enterprises Co Ltd; Guangdong Galanz Microwave Electric Manufacturing Co Ltd
Priority date: 2019-09-26
Filing date: 2019-09-26
Publication date: 2020-02-28
Anticipated expiration: 2039-09-26
Also published as: CN110856299B

Abstract

The invention relates to a cooking appliance and a door body thereof. The body is provided with a movable hole. The push-pull piece is movably arranged in the movable hole. The rotating shaft is rotatably arranged on the body, the push-pull piece is connected with the rotating shaft in a transmission way, and the push-pull piece is used for driving the rotating shaft to rotate. The two door hooks are arranged on the rotating shaft at intervals. Before the door is opened, the rotating shaft can be driven to rotate through the push-pull piece, the rotating shaft correspondingly drives the door hook to act, so that the door hook is separated from a switch contact of the microswitch, the switch contact of the microswitch correspondingly cuts off a power supply under the action of a spring inside the microswitch, the power supply for the magnetron is stopped, namely, the magnetron stops generating microwaves, and then the door body of the cooking appliance can be opened. Otherwise, after the door is closed, the microswitch is switched on, and the cooking appliance can work normally. Thus, the microwave oven is beneficial to preventing the generation of microwaves at the moment of opening the door, so that the safety performance is improved.

Description

Cooking appliance and door body thereof

Technical Field

The invention relates to the technical field of electric appliances, in particular to a cooking electric appliance and a door body thereof.

Background

A cooking appliance, particularly a cooking appliance with a microwave heating function, such as a microwave oven with a simple microwave heating function, a microwave barbecue machine with a heating tube barbecue function, a micro-steamer with a steam heating function, or a micro-steamer and micro-toaster all-in-one machine, will be described below with reference to the microwave oven as an example. The microwave oven heats food by electrifying a magnetron to generate high-frequency microwaves, and if the high-frequency microwaves leak out, the high-frequency microwaves can hurt human bodies, so that the microwaves are prevented from leaking out. In a conventional microwave oven, a plurality of micro switches are usually disposed at a position of a cabinet close to a door body, and a door hook is disposed on the door body corresponding to the position of the microwave switch. When the door body is closed, the door hook is pulled down through the tension spring, so that the head of the door hook presses down the elastic switch contact of the microwave switch to the tightest state, and a common conductive terminal in the microswitch is electrically connected with a normally closed conductive terminal, so that a circuit is communicated to electrify a magnetron for generating microwaves; when the door body is opened, the door hook is separated from the elastic switch contact of the microswitch, and the switch contact is bounced through the spring in the microswitch, so that the common conductive terminal in the microswitch is electrically connected with the normally open conductive terminal, the circuit is disconnected, the power supply to the magnetron is stopped, the generation of microwaves is stopped, and the human body is protected. However, limited by the existing microswitch structure, the existing microwave oven still works under power-on at the moment when the door body is opened, and microwave leakage to the outside of the door body can be generated at the moment, so that the microwave oven is harmful to the human body and has lower safety performance.

Disclosure of Invention

Accordingly, there is a need to overcome the drawbacks of the prior art and to provide an electric cooking appliance and a door thereof, which can prevent the generation of microwave at the moment of opening the door, thereby improving safety.

The technical scheme is as follows: a door body of an electric cooking appliance, comprising: the body is provided with a movable hole; the push-pull piece is movably arranged in the movable hole; the rotating shaft is rotatably arranged on the body, the push-pull piece is in transmission connection with the rotating shaft, and the push-pull piece is used for driving the rotating shaft to rotate; two door hooks, two the door hook set up with at interval in the pivot, just the door hook pass through the elastic component with the body links to each other, the door hook be used for inserting cooking appliance's the box in, and with micro-gap switch linkage cooperation in the box.

Before the door body of the cooking appliance is opened, the rotating shaft can be driven to rotate through the push-pull piece, the rotating shaft correspondingly drives the door hook to move, the door hook is separated from the switch contact of the microswitch, the switch contact of the microswitch correspondingly cuts off the power supply under the action of the spring inside the microswitch, the power supply for the magnetron is stopped, namely the magnetron stops generating microwaves, and then the door body of the cooking appliance can be opened. On the contrary, after the door is closed, the door hook is pressed on the switch contact of the microswitch under the action of the elastic piece, the microswitch is switched on, and the cooking appliance can work normally. Thus, the microwave oven is beneficial to preventing the generation of microwaves at the moment of opening the door, so that the safety performance is improved.

In one embodiment, the door body of the cooking appliance further comprises a handle arranged on the body, the handle is provided with a containing groove, and the push-pull piece is located in the containing groove.

In one embodiment, the push-pull member comprises a driving plate and a driving arm connected with the driving plate; the driving arm is movably arranged in the movable hole back and forth and is connected with the rotating shaft in a transmission way.

In one embodiment, the driving arm is provided with a hook groove, the rotating shaft comprises a stretching rod, two transition rods connected to two ends of the stretching rod, and a rotating rod connected to the transition rods, the stretching rod is clamped in the hook groove, the stretching rod and the rotating rod are arranged in parallel, the rotating rod is rotatably arranged on the body, and the door hook and the rotating rod are synchronously connected in a rotating manner.

In one embodiment, the rotating shaft is a crankshaft, and the rotating shaft is bent to form the stretching rod, the transition rod and the rotating rod; the stretching rod is connected with a driving arm of the push-pull piece, and the rotating rod is arranged in the shaft groove.

In one embodiment, the body comprises a door frame and a door frame arranged in the door frame, a groove is arranged on the side wall of the door frame facing the door frame, the rotating shaft is rotatably arranged in the groove, and the movable hole is arranged on the door frame and corresponds to the notch of the groove;

the side walls of the two ends of the groove are respectively provided with a first shaft hole, the end part of the rotating shaft extends out of the groove through the first shaft holes, and the door hook is arranged on the end part of the rotating shaft and positioned on the side part of the door frame;

a shaft block is arranged on the door frame, a shaft groove is formed in the side face, facing the rotating shaft, of the shaft block, and the rotating shaft is rotatably arranged in the shaft groove;

be equipped with horizontal spacing buckle and vertical spacing portion on the medial surface of door frame, vertical spacing portion is spacing contradict in the bottom of door skeleton, horizontal spacing buckle joint in the lateral part of door skeleton.

In one embodiment, the distance between the stretching rod and the rotating rod is less than the depth of the groove; when a plane formed by the axis of the stretching rod and the axis of the rotating rod is in an erect state, the elastic part is in a natural extension state or a contraction state.

In one embodiment, the overall length L1 of the stretch rod and one of the rotation rods is less than the length L2 of the groove.

In one embodiment, the door body of the cooking appliance further comprises two support pieces arranged on the body, the two support pieces and the two door hooks are arranged in a one-to-one correspondence manner, each support piece comprises two opposite clamping arms, each clamping arm forms a clamping groove, a second shaft hole is formed in each clamping arm, each door hook comprises a hook portion in linkage fit with the microswitch and a shaft portion connected with the hook portion, a third shaft hole corresponding to the second shaft hole is formed in the shaft portion, the shaft portion is rotatably arranged in the clamping groove, and the end portion of the rotating shaft is inserted into the second shaft hole and the third shaft hole;

the supporting piece also comprises a jacking edge connected with the two clamping arms; the door hook further comprises a jacking portion connected with the hook portion, the jacking portion is abutted to the jacking edge, the elastic member is a tension spring, one end of the tension spring is connected with the jacking portion, and the other end of the tension spring is connected with the jacking edge;

the top pressing edge is provided with a clamping groove, the top pressing part is provided with a hook hole, one hook body of the tension spring is hooked in the hook hole, and the other hook body of the tension spring is hooked in the clamping groove; the supporting piece also comprises an installation plate connected with the top pressing edge, and the installation plate is arranged on the body; the hook part, the jacking part and the shaft part are integrally T-shaped.

The utility model provides a cooking appliance, includes cooking appliance's door body, still includes the box, cooking appliance's door body rotationally set up in the opening of box, all be equipped with micro-gap switch on two relative lateral walls of box, two the door hook respectively with two micro-gap switch linkage cooperation.

The cooking appliance can drive the rotating shaft to rotate through the push-pull piece before the door is opened, the rotating shaft correspondingly drives the door hook to move, the door hook is separated from the switch contact of the microswitch, the switch contact of the microswitch correspondingly cuts off the power supply under the action of the spring inside the microswitch, the power supply for the magnetron is stopped, namely, the magnetron stops generating microwaves, and then the door body of the cooking appliance can be opened. On the contrary, after the door is closed, the door hook is pressed on the switch contact of the micro switch, the micro switch is switched on, and the cooking appliance can work normally. Thus, the microwave oven is beneficial to preventing the generation of microwaves at the moment of opening the door, so that the safety performance is improved.

Drawings

Fig. 1 is a schematic structural diagram of an electric cooking appliance according to an embodiment of the present invention after a door is opened;

fig. 2 is an exploded schematic view of a viewing angle of a door of the cooking appliance according to an embodiment of the invention;

fig. 3 is an exploded schematic view of another view angle of the door of the cooking appliance according to an embodiment of the invention;

fig. 4 is an exploded schematic view of a door body of the cooking appliance according to an embodiment of the invention, with a view angle of the door frame removed;

fig. 5 is an exploded schematic view of another viewing angle of a door of the cooking appliance according to an embodiment of the invention;

fig. 6 is a schematic structural diagram of a working state of a door of the cooking appliance according to an embodiment of the invention;

fig. 7 is a schematic structural diagram of another operating state of a door body of the cooking appliance according to an embodiment of the invention;

fig. 8 is a schematic structural diagram of a matching structure of a door hook and a micro switch of the cooking appliance according to an embodiment of the invention;

FIG. 9 is an enlarged schematic view of FIG. 8 at A;

FIG. 10 is a schematic view of the door hook of FIG. 9 shown rotated out of engagement with the microswitch;

fig. 11 is a schematic structural view of a matching portion of a driving arm and a rotating shaft in a door body of the cooking appliance according to an embodiment of the present invention;

fig. 12 is a schematic structural view of a door hook and a support of a cooking appliance according to an embodiment of the invention.

Reference numerals:

10. a door body; 11. a body; 111. a movable hole; 112. a door frame; 1121. a shaft block; 1122. a shaft groove; 1123. a transverse limiting buckle; 1124. a longitudinal position-limiting part; 113. a door frame; 1131. a groove; 1132. a first shaft hole; 114. a front panel; 115. a rear cover plate; 1151. an opening; 12. a push-pull member; 121. a drive plate; 122. a drive arm; 1221. a hook groove; 13. a rotating shaft; 131. a stretch rod; 132. a transition rod; 133. rotating the rod; 14. a door hook; 141. a hook portion; 142. a shaft portion; 1421. a third shaft hole; 143. a jacking portion; 15. an elastic member; 16. a handle; 161. a containing groove; 17. a support member; 171. clamping arms; 1711. a second shaft hole; 172. a clamping groove; 173. pressing the edges; 1731. a card slot; 174. mounting a plate; 20. a box body; 30. a micro switch.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "first", "second" and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any 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 description of the present invention, it should be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly connected" to another element, there are no intervening elements present.

Generally, the common conductive terminal is indirectly electrically connected with the normally closed conductive terminal or the normally open conductive terminal through the elastic sheet, and the elastic sheet suddenly jumps from one terminal to the other terminal when the button is displaced to a certain amount in the up-down direction. Therefore, in the process of opening the door body of the cooking appliance, the spring plate does not jump from one terminal to the other terminal, the cooking appliance is still electrified to work, and microwave is generated and leaked to the outside of the door body of the cooking appliance, so that harm is caused to a human body.

In an embodiment, referring to fig. 1 to 4 and fig. 8 to 10, a door 10 of a cooking appliance includes a body 11, a push-pull member 12, a rotating shaft 13 and two door hooks 14. The body 11 is provided with a movable hole 111. The push-pull member 12 is movably disposed in the movable hole 111. The rotating shaft 13 is rotatably arranged on the body 11, the pushing and pulling piece 12 is in transmission connection with the rotating shaft 13, and the pushing and pulling piece 12 is used for driving the rotating shaft 13 to rotate. The two door hooks 14 are arranged on the rotating shaft 13 at intervals, the door hooks 14 are connected with the body 11 through elastic pieces 15, and the door hooks 14 are used for being inserted into a box body 20 of the cooking appliance and being in linkage fit with a micro switch 30 in the box body 20. The elastic member 15 is specifically, for example, a spring or an elastic band.

Before the door body 10 of the cooking appliance is opened, the rotating shaft 13 can be driven to rotate by the push-pull piece 12, the rotating shaft 13 correspondingly drives the door hook 14 to act, so that the door hook 14 is separated from the switch contact of the micro switch 30, the switch contact of the micro switch 30 correspondingly cuts off the power supply under the action of the spring inside the micro switch 30, the power supply for the magnetron is stopped, namely, the magnetron stops generating microwaves, and then the door body 10 of the cooking appliance can be opened. On the contrary, after the door is closed, the door hook 14 is pressed on the switch contact of the micro switch 30 under the action of the elastic element 15, the micro switch 30 is switched on, and the cooking appliance can work normally. Thus, the microwave oven is beneficial to preventing the generation of microwaves at the moment of opening the door, so that the safety performance is improved.

In an embodiment, referring to fig. 1 to 4 again, the door 10 of the cooking appliance further includes a handle 16 disposed on the body 11, the handle 16 is provided with a receiving groove 161, and the push-pull member 12 is located in the receiving groove 161. Thus, before the handle 16 is held by hand to open the door, the push-pull member 12 is located in the accommodating groove 161, and can be smoothly applied to the push-pull member 12, which is convenient to operate.

Further, referring to fig. 2 and fig. 3, the push-pull member 12 includes a driving plate 121 and a driving arm 122 connected to the driving plate 121. The driving arm 122 is movably disposed in the movable hole 111 in a front-back direction, and the driving arm 122 is connected to the rotating shaft 13 in a transmission manner. So, act on drive plate 121, including not being limited to pressing mode and push-and-pull mode to drive plate 121's effect mode, drive the action of actuating arm 122 by drive plate 121, and then drive pivot 13 rotation by actuating arm 122, it is comparatively convenient to operate.

The front and rear movement refers to movement in a direction perpendicular to the panel surface of the door 10 of the cooking appliance.

Specifically, two driving arms 122 are provided, the two driving arms 122 are connected to both ends of the driving plate 121, the number of the movable holes 111 is two, and the two movable holes 111 and the two driving arms 122 are provided in one-to-one correspondence.

Alternatively, the number of the drive arms 122 is not limited to two, and may be one, three, or another number.

Optionally, the driving plate 121 is adapted to the bottom wall of the accommodating groove 161.

In one embodiment, referring to fig. 2, 3 and 11, the driving arm 122 is provided with a hook slot 1221, and the rotating shaft 13 includes a stretching rod 131, two transition rods 132 connected to two ends of the stretching rod 131, and a rotating rod 133 connected to the transition rods 132. The stretching rod 131 is clamped in the hook groove 1221, and the stretching rod 131 and the rotating rod 133 are arranged in parallel. The rotating lever 133 is rotatably disposed on the body 11. The door hook 14 is rotatably connected to the rotating lever 133 in synchronization. Thus, when the driving arm 122 of the push-pull member 12 drives the stretching rod 131, the stretching rod 131 rotates according to the driving rotation lever 133.

Specifically, the stretching rod 131, the transition rod 132, and the rotating rod 133 are an integrated rod body, and the rotation shaft 13 is formed by, for example, bending the integrated rod body. Alternatively, the stretching rod 131, the transition rod 132, and the rotating rod 133 form the rotating shaft 13 by being welded to each other.

As an alternative, the rotating rod 133 is one, and the stretching rod 131 is disposed at a middle portion of the rotating rod 133 and is adapted to be connected to the driving arm 122. When the driving arm 122 of the push-pull member 12 drives the stretching rod 131, the stretching rod 131 also drives the rotating rod 133 to rotate.

As an alternative, the driving arm 122 is provided with a first tooth, and the side wall of the rotating shaft 13 is provided with a second tooth engaged with the first tooth. Thus, the driving arm 122 of the push-pull member 12 can drive the rotation shaft 13 to rotate when pushed or pulled.

In one embodiment, referring to fig. 1 to 4, the body 11 includes a door frame 112 and a door frame 113 disposed in the door frame 112. The side wall of the door frame 113 facing the door frame 112 is provided with a groove 1131, the rotating shaft 13 is rotatably disposed in the groove 1131, and the movable hole 111 is disposed on the door frame 112 and corresponds to the notch of the groove 1131.

In addition, all be equipped with first axle hole 1132 on the lateral wall at the both ends of recess 1131, the tip of pivot 13 passes through first axle hole 1132 stretches out outside the recess 1131, door hook 14 set up in on the tip of pivot 13 and be located the lateral part of door frame 113.

In addition, a shaft block 1121 is disposed on the door frame 112, a shaft groove 1122 is disposed on a side surface of the shaft block 1121 facing the rotation shaft, and the rotation shaft 13 is rotatably disposed in the shaft groove 1122.

Further, referring to fig. 4 to 7, a transverse limiting buckle 1123 and a longitudinal limiting portion 1124 are disposed on an inner side surface of the door frame 112. The longitudinal limiting portion 1124 is limited and abutted against the bottom of the door frame 113, and the transverse limiting buckle 1123 is clamped on the side of the door frame 113, so that the door frame 113 is fixed and installed in the door frame 112. Particularly, the relative both sides on the medial surface of door frame 112 all are equipped with horizontal spacing buckle 1123, carry out the joint respectively with the relative both sides of door frame 113 through the horizontal spacing buckle 1123 of the relative both sides of door frame 112 and fix, and fixed effect is better.

As an alternative, the shaft block 1121 is not disposed on the door frame 112, but is disposed on the door frame 113.

Specifically, the number of the shaft blocks 1121 is two, the two shaft blocks 1121 are disposed in one-to-one correspondence with the two rotating rods 133, and the two rotating rods 133 of the rotating shaft 13 are respectively rotatably mounted in the bearings of the two shaft blocks 1121, so that when the rotating shaft 13 rotates, the rotating effect is stable.

Further, referring to fig. 1 to 5, the main body 11 further includes a front panel 114 and a rear cover plate 115. The front panel 114 is installed on one side of the door frame 112, and the front panel 114 is provided with a movable hole 111 for the push-pull member 12 to move. The rear cover plate 115 is installed on the other side of the door frame 112, an opening 1151 corresponding to the door hook 14 is formed in the rear cover plate 115, and the door hook 14 can move in the opening 1151.

In one embodiment, the rotating shaft 13 is a crankshaft, and the rotating shaft 13 is bent to form the stretching rod 131, the transition rod 132 and the rotating rod 133. The stretching rod 131 is connected to the driving arm 122 of the push-pull member 12, and the rotating rod 133 is disposed in the shaft groove 1122.

Further, referring to fig. 4 to 7, the distance between the stretching rod 131 and the rotating rod 133 is smaller than the depth of the groove 1131, that is, the length of the transition rod 132 is smaller than the depth of the groove 1131. In this manner, stretch rod 131 may be fully received within recess 1131 and rotated within recess 1131.

Further, when the plane formed by the axial center of the stretching rod 131 and the axial center of the rotating rod 133 is in the vertical state, the elastic member 15 is in the natural extension state or the contraction state, and at this time, the door body 10 is in the closed state, and the hook portion 141 of the door hook 14 is pressed against the microswitch 30. Since the plane formed by the axial center of the stretching rod 131 and the axial center of the rotating rod 133 is in the vertical state, when the stretching rod 131 is pulled back and forth by the driving arm 122 of the push-pull member 12 during the door opening process, the plane formed by the axial center of the stretching rod 131 and the axial center of the rotating rod 133 is rotated from the vertical state to the inclined state at an angle of, for example, 30 degrees to 60 degrees with respect to the horizontal plane, thereby facilitating the rotation of the driving shaft 13.

In one embodiment, referring to fig. 4 and 5, the total length L1 of the stretching rod 131 and one of the rotating rods 133 is less than the length L2 of the groove 1131. This facilitates the sequential installation of the two ends of the shaft 13 into the first shaft holes 1132 of the sidewalls of the two ends of the groove 1131, respectively.

Further, referring to fig. 4 and 5, the length L3 of the shaft 13 is greater than the length L2 of the groove 1131, so that both ends of the shaft 13 can pass through the first shaft holes 1132 on both side walls of the groove 1131.

In one embodiment, referring to fig. 6, the distance between the shaft block 1121 and the transition rod 132 is S1, and the distance between the driving arm 122 and the transition rod 132 is S2. Wherein, S1 is equal to S2, or the difference between S1 and S2 is smaller than 2mm, or both S1 and S2 are smaller than 10mm, that is, when the shaft block 1121 and the driving arm 122 are both close to the transition rod 132, the driving arm 122 is favorable for driving the stretching rod 131 to rotate smoothly.

In an embodiment, referring to fig. 1 to 4 and fig. 12, the door 10 of the cooking appliance further includes two supporting members 17 disposed on the body 11. The two supporting members 17 are disposed corresponding to the two door hooks 14, and the supporting member 17 includes two clamping arms 171 disposed oppositely. The two clamping arms 171 form a clamping groove 172, and a second shaft hole 1711 is formed in each clamping arm 171. The door hook 14 includes a hook 141 cooperating with the micro switch 30 and a shaft 142 connected to the hook 141, the shaft 142 is provided with a third shaft hole 1421 corresponding to the second shaft hole 1711, the shaft 142 is rotatably disposed in the clip groove 172, and an end of the rotating shaft 13 is inserted into the second shaft hole 1711 and the third shaft hole 1421.

Specifically, the section of the portion of the rotating shaft 13 extending into the third shaft hole 1421 is a non-circular surface, such as a triangular surface, a quadrilateral surface, an elliptical surface, etc., and the section of the third shaft hole 1421 in the axial direction is also a non-circular surface and is adapted to the rotating shaft 13, so that when the rotating shaft 13 rotates, the rotating shaft 13 can synchronously drive the shaft 142 to rotate.

As an alternative, the rotating shaft 13 and the hook 141 are fixed to each other by, for example, clamping, welding, screwing, or the like.

Further, referring to fig. 12, the supporting member 17 further includes a pressing edge 173 connected to the two clamping arms 171. The door hook 14 further comprises a jacking portion 143 connected with the hook portion 141, the jacking portion 143 abuts against the jacking edge 173, the elastic member 15 is a tension spring, one end of the tension spring is connected with the jacking portion 143, and the other end of the tension spring is connected with the jacking edge 173.

Further, referring to fig. 12, the pressing edge 173 is provided with a locking groove 1731, the pressing portion 143 is provided with a hook hole, one hook of the tension spring is hooked in the hook hole, and the other hook of the tension spring is hooked in the locking groove 1731. The supporting member 17 further includes a mounting plate 174 connected to the top pressing edge 173, and the mounting plate 174 is mounted on the body 11.

Further, the hook 141, the pressing portion 143, and the shaft 142 are formed in a T shape as a whole.

Specifically, the mounting plate 174 is detachably mounted to the door frame 113 of the main body 11.

In an embodiment, referring to fig. 1 to 4 and fig. 8 to 10, a cooking appliance includes a door 10 of the cooking appliance according to any one of the above embodiments, and further includes a box 20, the door 10 of the cooking appliance is rotatably disposed at an opening of the box 20, two opposite sidewalls of the box 20 are respectively provided with a micro switch 30, and the two door hooks 14 are respectively in linkage fit with the two micro switches 30.

Before the door of the cooking appliance is opened, the rotating shaft 13 can be driven to rotate by the push-pull piece 12, the rotating shaft 13 correspondingly drives the door hook 14 to act, the door hook 14 is separated from the switch contact of the micro switch 30, the switch contact of the micro switch 30 correspondingly cuts off the power supply under the action of the spring inside the micro switch 30, the power supply for the magnetron is stopped, namely the magnetron stops generating microwaves, and then the door body 10 of the cooking appliance can be opened. On the contrary, after the door is closed, the door hook 14 is pressed on the switch contact of the micro switch 30, the micro switch 30 is switched on, and the cooking appliance can work normally. Thus, the microwave oven is beneficial to preventing the generation of microwaves at the moment of opening the door, so that the safety performance is improved.

Specifically, in the present embodiment, the bottom edge of the door 10 of the cooking appliance is rotatably disposed at the bottom edge of the opening portion of the cabinet 20, that is, the door 10 of the cooking appliance is opened on the cabinet 20 in a vertical opening manner. Alternatively, a side edge of the door 10 of the cooking appliance may be rotatably connected to a side edge of the opening portion of the cabinet 20, that is, an opening manner of the door 10 of the cooking appliance on the cabinet 20 may be a left-right rotating opening manner.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A door body of cooking appliance, characterized by comprising:

the body is provided with a movable hole;

the push-pull piece is movably arranged in the movable hole;

the rotating shaft is rotatably arranged on the body, the push-pull piece is in transmission connection with the rotating shaft, and the push-pull piece is used for driving the rotating shaft to rotate;

two door hooks, two the door hook set up with at interval in the pivot, just the door hook pass through the elastic component with the body links to each other, the door hook be used for inserting cooking appliance's the box in, and with micro-gap switch linkage cooperation in the box.

2. The door body of the cooking appliance according to claim 1, further comprising a handle disposed on the body, wherein the handle is provided with a receiving groove, and the push-pull member is located in the receiving groove.

3. The door body of the cooking appliance according to claim 2, wherein the push-pull member comprises a driving plate and a driving arm connected with the driving plate; the driving arm is movably arranged in the movable hole back and forth and is connected with the rotating shaft in a transmission way.

4. The door body of the cooking appliance according to claim 3, wherein the driving arm is provided with a hook slot, the rotating shaft comprises a stretching rod, two transition rods connected to two ends of the stretching rod, and a rotating rod connected to the transition rods, the stretching rod is clamped in the hook slot, the stretching rod and the rotating rod are arranged in parallel, the rotating rod is rotatably arranged on the body, and the door hook is synchronously and rotatably connected to the rotating rod.

5. The door body of the cooking appliance according to claim 4, wherein the rotating shaft is a crankshaft, and the rotating shaft is bent to form the stretching rod, the transition rod and the rotating rod; the stretching rod is connected with a driving arm of the push-pull piece, and the rotating rod is arranged in the shaft groove.

6. The door body of the cooking appliance according to claim 4, wherein the body comprises a door frame and a door frame arranged in the door frame, a groove is arranged on a side wall of the door frame facing the door frame, the rotating shaft is rotatably arranged in the groove, and the movable hole is arranged on the door frame and corresponds to a notch of the groove;

7. The door body of the cooking appliance according to claim 6, wherein the distance between the stretching rod and the rotating rod is smaller than the depth of the groove;

when a plane formed by the axis of the stretching rod and the axis of the rotating rod is in an erect state, the elastic part is in a natural extension state or a contraction state.

8. The door body of the cooking appliance according to claim 6, wherein the total length L1 of the stretching rod and one of the rotating rods is less than the length L2 of the groove.

9. The door body of the cooking appliance according to claim 6, further comprising two support members disposed on the body, wherein the two support members and the two door hooks are disposed in a one-to-one correspondence manner, the support members include two oppositely disposed clamping arms, the two clamping arms form a clamping groove, a second shaft hole is disposed on the clamping arms, the door hook includes a hook portion cooperating with the microswitch in a linkage manner and a shaft portion connected with the hook portion, a third shaft hole corresponding to the second shaft hole is disposed on the shaft portion, the shaft portion is rotatably disposed in the clamping groove, and an end portion of the rotating shaft is inserted into the second shaft hole and the third shaft hole;

10. An electric cooking appliance, characterized by comprising the door body of the electric cooking appliance according to any one of claims 1 to 9, and further comprising a box body, wherein the door body of the electric cooking appliance is rotatably arranged at an opening part of the box body, microswitches are arranged on two opposite side walls of the box body, and the two door hooks are respectively in linkage fit with the two microswitches.