Cooking utensil with safe door opening and closing function

Abstract

The utility model provides a cooking utensil with a safe door opening and closing function. The cooking utensil aims to solve the problem that in the prior art, a door opening and closing structure of a cooking utensil with power off during door opening and power on during door closing is complex in design. A cooking utensil with a safe door opening and closing function comprises a machine body, a door opening and closing device, a door opening and closing device and a door opening and closing device, the door body assembly is hinged to the machine body and used for opening and closing the cooking cavity; the linkage mechanism comprises a swing arm rotationally arranged on the machine body, a trigger piece arranged on the swing arm and a connecting rod assembly arranged between the swing arm and the door body assembly, and the two ends of the connecting rod assembly are hinged to the door body assembly and the swing arm respectively; and the microswitch is arranged on the machine body. When the door is opened, the trigger piece is separated from the microswitch, and the microswitch is switched off for protection, so that the door is safer to open.

Description

Technical Field

[0001] The utility model belongs to the technical field of kitchen cooking appliances, and in particular relates to a cooking appliance with a safe door opening and closing function. Background Art

[0002] Currently, kitchen cooking appliances, such as air fryer microwaves and microwave ovens, offer significant convenience for cooking. However, if the door of these appliances is accidentally opened during cooking, it can create safety hazards such as microwave leakage or hot air burns. To mitigate this safety hazard, current cooking appliances have door assemblies that power off when the door is opened and power on when the door is closed, thereby preventing microwave leakage or hot air burns. However, the door opening and closing mechanisms used in these existing cooking appliances to achieve this functionality are complex and require further improvement. Utility Model Content

[0003] The utility model provides a cooking appliance with a safe door opening and closing function, aiming to solve the problem of a relatively complex door opening and closing structure design of cooking appliances in the prior art.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0005] A cooking appliance with a safe door opening and closing function, comprising:

[0006] A machine body, wherein a cooking cavity is provided in the machine body;

[0007] a door assembly hinged to the machine body and used for opening and closing the cooking cavity;

[0008] A linkage mechanism, the linkage mechanism comprising a swing arm rotatably mounted on the machine body, a trigger member mounted on the swing arm, and a connecting rod assembly disposed between the swing arm and the door assembly, wherein both ends of the connecting rod assembly are hingedly connected to the door assembly and the swing arm, respectively; and

[0009] A micro switch is provided on the machine body;

[0010] When the door body assembly is closed, the door body assembly drives the swing arm to swing toward the micro switch through the connecting rod assembly, and causes the trigger member to trigger the micro switch; when the door body assembly is opened, the door body assembly drives the swing arm to swing away from the micro switch through the connecting rod assembly, and causes the trigger member to be disconnected from the micro switch.

[0011] A further solution: the door body assembly includes a left door hinged to the left side of the body and a right door hinged to the right side of the body, the connecting rod assembly includes a left connecting rod and a right connecting rod, the swing arm is provided with a left hinge end and a right hinge end, the two ends of the left connecting rod are respectively hinged to the left door and the left hinge end, and the two ends of the right connecting rod are respectively hinged to the right door and the right hinge end.

[0012] Based on the above technical solution: through the above setting, the left door and the right door need to be opened or closed synchronously, ensuring that the left door and the right door are closed at the same time when closing, further reducing safety hazards.

[0013] A further solution is that an elastic member is provided between the linkage mechanism and the machine body. When the door assembly is closed, the elastic member causes the trigger member to remain at a position to trigger the micro switch under elastic action.

[0014] Based on the above technical solution: by setting an elastic part, when closing the door body assembly, the elastic part can provide a certain power for closing the door, and after closing the door, the elastic part keeps the trigger part in the position of triggering the micro switch, so that the micro switch is in a triggered state more stably.

[0015] A further solution: the elastic member is a tension spring, and the tension spring is located between the right connecting rod and the machine body.

[0016] A further solution: the door assembly is arranged on the front side of the body, the swing arm and the micro switch are both arranged on the upper side of the bottom wall of the body and on the right, and the swing arm is located in front of the micro switch.

[0017] Based on the above technical solution: the above setting makes installation more convenient, and at the same time can prevent users from accidentally touching the micro switch when the door is open, making the product safer to use.

[0018] A further solution: a fixed bracket is provided on the upper side of the bottom wall of the body, the swing arm is hinged to the fixed bracket and is located on the upper side of the fixed bracket; an arc-shaped hole is provided on the fixed bracket, and a protrusion sliding along the arc-shaped hole is provided on the swing arm; a first abutting end and a second abutting end are provided in the arc-shaped hole; when the door body assembly is closed, the protrusion abuts against the first abutting end; when the door body assembly is opened, the protrusion abuts against the second abutting end.

[0019] Based on the above technical solution: by setting it up that when the swing arm swings back and forth, the protrusion slides back and forth along the arc hole, thereby playing a certain limiting and guiding role, making the linkage mechanism more stable, and also preventing the left door and the right door from rotating beyond the limit when opening the door.

[0020] A further solution: the trigger member is arranged on the upper side of the swing arm, and the trigger member includes a connecting piece fixedly connected to the swing arm and a switch pressing piece for triggering the micro switch, and the connecting piece and the switch pressing piece are integrally formed.

[0021] A further solution is that a micro switch fixing frame extending backward is provided on the fixing bracket, the micro switch is fixed on the micro switch fixing frame, and a gasket is provided between the micro switch and the micro switch fixing frame.

[0022] Based on the above technical solution: the above setting makes installation more convenient and lowers the cost.

[0023] A further solution: The left hinged end, the right hinged end, the left door and the right door are all provided with hinged seats, the two ends of the left connecting rod are respectively hinged to the left hinged end and the hinged seat of the left door, and the two ends of the right connecting rod are respectively hinged to the right hinged end and the hinged seat of the right door.

[0024] A further solution is that the front side of the machine body is provided with two clearance holes for the left connecting rod and the right connecting rod to pass through respectively.

[0025] Based on the above technical solution: the above setting is not only convenient for installation, but also makes the cost lower and the product safer to use.

[0026] The beneficial effects of the utility model are:

[0027] The present invention provides a linkage mechanism on the door body, including a connecting rod assembly, a swing arm, and a trigger member disposed on the swing arm. The ends of the connecting rod assembly are respectively hinged to the door body assembly and the swing arm. This allows the door body assembly, via the connecting rod assembly, to swing the swing arm toward or away from the microswitch during the door opening and closing process. The swing arm then drives the trigger member to trigger the microswitch to energize it when the door is closed. When the door is opened, the trigger member disengages from the microswitch, disconnecting the microswitch for protection, making door opening safer. When used in a microwave oven, it can prevent microwave leakage. When used in an air fryer, it can prevent hot air from burning the user, making the product safer to use. Furthermore, the present invention has a simpler structure and is easy to install. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0029] Figure 1 It is a structural schematic diagram of the door assembly of the present invention when it is closed.

[0030] Figure 2 It is a structural schematic diagram of the door assembly of the present invention when it is opened.

[0031] Figure 3 It is a schematic diagram of the explosion structure of the bottom wall and the body.

[0032] Figure 4 It is a structural diagram of the bump and the arc hole.

[0033] Figure 5 It is a structural diagram of the trigger member being fixed on the swing arm.

[0034] Description of the numbers in the figure:

[0035] 1-body; 11-clearance hole; 12-fixing bracket; 121-arc-shaped hole; 13-micro switch fixing bracket; 14-micro switch; 15-gasket; 16-swing arm; 161-left hinge end; 162-right hinge end; 163-bump; 17-trigger; 18-left connecting rod; 19-right connecting rod; 2-left door; 3-right door; 4-tension spring. DETAILED DESCRIPTION

[0036] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0037] like Figures 1 to 3 As shown, this embodiment provides a cooking appliance with a safe door opening and closing function, comprising:

[0038] A machine body 1, wherein a cooking cavity is provided in the machine body 1;

[0039] a door assembly hinged to the body 1 and used to open and close the cooking cavity;

[0040] A linkage mechanism, comprising a swing arm 16 rotatably disposed on the machine body 1, a trigger member 17 disposed on the swing arm 16, and a connecting rod assembly disposed between the swing arm 16 and the door assembly, wherein both ends of the connecting rod assembly are hinged to the door assembly and the swing arm 16, respectively; and

[0041] A micro switch 14 is provided on the body 1;

[0042] When the door body assembly is closed, the door body assembly drives the swing arm 16 to swing toward the micro switch 14 through the connecting rod assembly, and causes the trigger member 17 to trigger the micro switch 14; when the door body assembly is opened, the door body assembly drives the swing arm 16 to swing away from the micro switch 14 through the connecting rod assembly, and causes the trigger member 17 to be disconnected from the micro switch 14.

[0043] In this embodiment, Figure 1 and Figure 2 As shown, the door body assembly is a double-door structure. Specifically, the door body assembly includes a left door 2 hinged to the left side of the body 1 and a right door 3 hinged to the right side of the body 1. The connecting rod assembly includes a left connecting rod 18 and a right connecting rod 19. The swing arm 16 is provided with a left hinge end 161 and a right hinge end 162. The two ends of the left connecting rod 18 are respectively hinged to the left door 2 and the left hinge end 161, and the two ends of the right connecting rod 19 are respectively hinged to the right door 3 and the right hinge end 162. When opening and closing the doors, the left door 2 and the right door 3 will be opened or closed synchronously, which is safer. The left hinge end 161, the right hinge end 162, the left door 2, and the right door 3 are all provided with hinge seats. The two ends of the left connecting rod 18 are respectively hinged to the left hinge end 161 and the hinge seat of the left door 2, while the two ends of the right connecting rod 19 are respectively hinged to the right hinge end 162 and the hinge seat of the right door 3. Specifically, rivets or the like can be used for the hinge connection.

[0044] In this embodiment, the door assembly is specifically disposed on the front side of the housing 1. The swing arm 16 and the microswitch 14 are both disposed on the upper side and to the right of the bottom wall of the housing 1, with the swing arm 16 located in front of the microswitch 14. The hinge seat on the left door 2 is located below the left door 2, and the hinge seat on the right door 3 is located below the right door 3. Two clearance holes 11 are provided at the bottom of the front side of the housing 1, through which the left and right connecting rods 18 and 19 respectively pass. During the door opening and closing process, the left and right connecting rods 18 and 19 slide through their corresponding clearance holes 11.

[0045] In this embodiment, Figure 1 and Figure 2As shown, to facilitate door closing, an elastic member is provided between the linkage mechanism and the housing 1. When the door assembly is closed, the elastic member maintains the trigger member 17 in the position that triggers the microswitch 14. Specifically, when the door is opened, the elastic member is stretched, and when the door is closed, the elastic member returns to its original position, providing a certain amount of force to facilitate door closing. The elastic member is preferably a tension spring 4, which is located between the right connecting rod 19 and the housing 1. Specifically, both the housing 1 and the right connecting rod 19 are provided with hook holes, and the hooks at both ends of the tension spring 4 are respectively hooked into the two hook holes.

[0046] In this embodiment, Figures 1 to 4 As shown, to facilitate securing the swing arm 16 and microswitch 14, a fixing bracket 12 is provided on the upper side of the bottom wall of the housing 1. This fixing bracket 12 can be secured to the housing 1 via rivets or the like. The swing arm 16 is hingedly connected to the fixing bracket 12 and located above it. The fixing bracket 12 is provided with an arcuate hole 121, and the swing arm 16 is provided with a protrusion 163 that slides along the arcuate hole 121. As the swing arm 16 swings back and forth, the protrusion 163 slides back and forth along the arcuate hole 121, thereby providing a certain degree of position limiting and guiding functions. Specifically, a first abutting end and a second abutting end are provided in the arc-shaped hole 121; when the door body assembly is closed, the protrusion 163 abuts against the first abutting end; when the door body assembly is opened, the protrusion 163 abuts against the second abutting end. When opening the door, when the protrusion 163 abuts against the second abutting end of the arc-shaped hole 121, the opening angles of the left door 2 and the right door 3 are the largest.

[0047] like Figure 5 As shown, the trigger member 17 is disposed on the upper side of the swing arm 16. The trigger member 17 comprises a connecting piece fixedly connected to the swing arm 16 and a switch pressing piece for triggering the micro switch 14. The connecting piece and the switch pressing piece are integrally formed. The connecting piece is fixed to the swing arm 16 via rivets and swings synchronously with the swing arm 16. When the door is closed, the switch pressing piece abuts against the micro switch 14, keeping it in the triggered state.

[0048] A microswitch mounting bracket 13 is provided on the fixing bracket 12 and extends rearward. The microswitch 14 is fixed to the microswitch mounting bracket 13, and a gasket 15 is provided between the microswitch 14 and the microswitch mounting bracket 13. Specifically, the microswitch mounting bracket 13 is fixed to the lower side of the fixing bracket 12 by rivets, and the microswitch 14 is fixed to the microswitch mounting bracket 13 by screws.

[0049] In this embodiment, the cooking appliance can be an air frying microwave oven, a microwave oven, an oven, etc. When the door is opened, the micro switch 14 is in a non-triggering state, the microwave heating function is turned off or the air frying burner is turned off, thereby making the product safer to use.

[0050] Working principle description:

[0051] When the door assembly is closed, the door assembly drives the swing arm 16 to swing toward the micro switch 14 through the connecting rod assembly, so that the trigger 17 on the swing arm 16 triggers the micro switch 14. When the door assembly is opened, the door assembly drives the swing arm 16 to swing away from the micro switch 14 through the connecting rod assembly, so that the trigger 17 on the swing arm 16 disengages the micro switch 14, and the relevant components in the body 1 are powered off, making it safer to open the door.

[0052] The present invention is not limited to the above optional implementation methods. Under the premise of not conflicting with each other, the various solutions can be combined arbitrarily. Anyone can derive other forms of products under the inspiration of the present invention. However, no matter what changes are made in their shape or structure, all technical solutions that fall within the scope defined by the claims of the present invention fall within the scope of protection of the present invention.

Claims

1. A cooking appliance with a safe door opening and closing function, characterized in that: include: A machine body, wherein a cooking cavity is provided in the machine body; a door assembly hinged to the machine body and used for opening and closing the cooking cavity; A linkage mechanism, the linkage mechanism comprising a swing arm rotatably mounted on the machine body, a trigger member mounted on the swing arm, and a connecting rod assembly disposed between the swing arm and the door assembly, wherein both ends of the connecting rod assembly are hingedly connected to the door assembly and the swing arm, respectively; and A micro switch is provided on the machine body; When the door body assembly is closed, the door body assembly drives the swing arm to swing toward the micro switch through the connecting rod assembly, and causes the trigger member to trigger the micro switch; when the door body assembly is opened, the door body assembly drives the swing arm to swing away from the micro switch through the connecting rod assembly, and causes the trigger member to be disconnected from the micro switch.

2. The cooking appliance with a safe door opening and closing function according to claim 1, characterized in that: The door body assembly includes a left door hinged to the left side of the body and a right door hinged to the right side of the body, the connecting rod assembly includes a left connecting rod and a right connecting rod, and the swing arm is provided with a left hinge end and a right hinge end, the two ends of the left connecting rod are respectively hinged to the left door and the left hinge end, and the two ends of the right connecting rod are respectively hinged to the right door and the right hinge end.

3. The cooking appliance with a safe door opening and closing function according to claim 2, characterized in that: An elastic member is provided between the linkage mechanism and the machine body. When the door assembly is closed, the elastic member keeps the trigger member at a position where the micro switch is triggered under elastic action.

4. The cooking appliance with a safe door opening and closing function according to claim 3, characterized in that: The elastic member is a tension spring, and the tension spring is located between the right connecting rod and the machine body.

5. The cooking appliance with a safe door opening and closing function according to claim 2, characterized in that: The door assembly is arranged on the front side of the machine body, the swing arm and the micro switch are both arranged on the upper side and to the right of the bottom wall of the machine body, and the swing arm is located in front of the micro switch.

6. The cooking appliance with a safe door opening and closing function according to claim 5, characterized in that: A fixed bracket is provided on the upper side of the bottom wall of the body, and the swing arm is hinged to the fixed bracket and is located on the upper side of the fixed bracket; an arc-shaped hole is provided on the fixed bracket, and a protrusion sliding along the arc-shaped hole is provided on the swing arm; a first abutting end and a second abutting end are provided in the arc-shaped hole; when the door body assembly is closed, the protrusion abuts against the first abutting end; when the door body assembly is opened, the protrusion abuts against the second abutting end.

7. The cooking appliance with a safe door opening and closing function according to claim 6, characterized in that: The trigger member is arranged on the upper side of the swing arm, and the trigger member includes a connecting piece fixedly connected to the swing arm and a switch pressing piece for triggering the micro switch, and the connecting piece and the switch pressing piece are integrally formed.

8. The cooking appliance with a safe door opening and closing function according to claim 6, characterized in that: A micro switch fixing frame extending backward is provided on the fixing bracket, the micro switch is fixed on the micro switch fixing frame, and a gasket is provided between the micro switch and the micro switch fixing frame.

9. The cooking appliance with a safe door opening and closing function according to claim 2, characterized in that: The left hinged end, the right hinged end, the left door and the right door are all provided with hinged seats. The two ends of the left connecting rod are respectively hinged to the left hinged end and the hinged seat of the left door, and the two ends of the right connecting rod are respectively hinged to the right hinged end and the hinged seat of the right door.

10. The cooking appliance with a safe door opening and closing function according to claim 2, characterized in that: The front side of the machine body is provided with two clearance holes for the left connecting rod and the right connecting rod to pass through respectively.

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