CN209090926U - Steam valve neglected loading prevention structure of cooking appliance and cooking appliance - Google Patents
Steam valve neglected loading prevention structure of cooking appliance and cooking appliance Download PDFInfo
- Publication number
- CN209090926U CN209090926U CN201821279621.8U CN201821279621U CN209090926U CN 209090926 U CN209090926 U CN 209090926U CN 201821279621 U CN201821279621 U CN 201821279621U CN 209090926 U CN209090926 U CN 209090926U
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- steam valve
- trigger
- cooking appliance
- positioning pin
- place
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- 238000010411 cooking Methods 0.000 title claims abstract description 56
- 230000002265 prevention Effects 0.000 title claims description 8
- 230000001960 triggered effect Effects 0.000 claims abstract description 17
- 238000009835 boiling Methods 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 3
- 235000013312 flour Nutrition 0.000 description 9
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000010025 steaming Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
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Abstract
The utility model provides a steam valve leak protection dress structure and cooking utensil of cooking utensil, steam valve install the face of cooking utensil and cover, and leak protection dress structure is including setting up the trigger part that covers at the face, and the trigger part links to each other with the controlling means of cooking utensil, and when steam valve installation targetting in place, trigger part and steam valve looks butt and triggered, controlling means is used for confirming steam valve installation when trigger part is triggered and targets in place. The application provides a boiling apparatus's steam valve neglected loading structure and have its boiling apparatus can effectively prevent steam valve neglected loading. When the steam valve is installed in place, the steam valve is abutted to the trigger part and is triggered, the control device confirms that the steam valve is installed in place when the trigger part is triggered, and if the steam valve is not installed in place, the control device cannot further control the cooking appliance to work, so that the working reliability and the safety of the cooking appliance are improved.
Description
Technical Field
The utility model relates to a household electrical appliances technical field, concretely relates to can effectively prevent steam valve neglected loading structure and the utensil of cooking of neglected loading.
Background
A large amount of steam can be generated in the working process of the cooking appliances such as the electric cooker and the like, and the steam is discharged to the outside of the cooking appliances through the steam valve so as to ensure that the pressure in the cooking appliances is normal.
The steam valve on the existing cooking utensil is not provided with an anti-leakage structure, and after a user leaks the steam valve, the cooking utensil can still normally work. The condition that air leakage and overflow can occur in the working process of the cooking appliance is caused, the pressure inside the cooking appliance is abnormal, the original working effect of the cooking appliance cannot be realized, and the potential safety hazard exists.
SUMMERY OF THE UTILITY MODEL
In view of the above, an object of the present invention is to provide a steam valve neglected loading prevention structure of a steaming appliance and a steaming appliance capable of preventing steam valve neglected loading.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the steam valve is installed on a face cover of the cooking appliance and comprises a trigger part arranged on the face cover, the trigger part is connected with a control device of the cooking appliance, when the steam valve is installed in place, the trigger part is abutted to the steam valve and is triggered, and the control device is used for confirming that the steam valve is installed in place when the trigger part is triggered.
Preferably, the face cover is provided with a mounting hole, the trigger component and the steam valve are respectively located on the inner side and the outer side of the face cover, the trigger component is provided with a first trigger structure, the steam valve is provided with a second trigger structure, and when the steam valve is installed in place, the first trigger structure or the second trigger structure penetrates through the mounting hole to abut against the second trigger structure or the first trigger structure.
Preferably, the face cover comprises a groove structure for accommodating the steam valve, and the mounting hole is arranged on a side wall of the groove structure.
Preferably, the first trigger structure comprises a micro-motion trigger button disposed on the trigger member; and/or the presence of a gas in the gas,
the steam valve comprises a valve body, and the second trigger structure comprises a protruding structure arranged on the valve body.
Preferably, the protruding structure is connected to the valve body through an elastic structure, and when the protruding structure abuts against the first triggering structure, the elastic structure is compressed.
Preferably, the triggering part is mounted on the inner wall of the face cover by a mounting structure, the mounting structure includes a positioning unit and/or a fixing unit,
the positioning unit is used for limiting the position of the trigger component on the face cover, and the fixing unit is used for fixing the trigger component on the face cover.
Preferably, the positioning unit comprises a positioning pin shaft or a positioning pin hole arranged on the surface cover, and further comprises a positioning pin hole or a positioning pin shaft arranged on the trigger component and matched with the positioning pin shaft or the positioning pin hole; and/or the presence of a gas in the gas,
the fixing unit comprises fixing holes arranged on the face cover and the trigger component, and the trigger component is fixedly connected with the face cover through a fastener and the fixing holes. Preferably, the trigger member comprises a square mounting portion,
the positioning pin shaft and the fixing hole are respectively arranged at two diagonal positions of the mounting part; or,
the positioning pin hole and the fixing hole are arranged at two diagonal positions of the mounting part.
Preferably, the control device comprises a control display panel, and the control display panel is electrically connected with the trigger component through a wiring.
Preferably, one end of the wiring is connected with the control display panel, the other end of the wiring is provided with an inserting spring or an inserting sheet, the triggering part is provided with an inserting sheet or an inserting spring, and the inserting spring is matched with the inserting sheet to enable the triggering part to be connected with the control display panel.
A cooking utensil comprises a flour cover and a steam valve arranged on the flour cover, and further comprises a steam valve anti-leakage structure of the cooking utensil.
The application provides a boiling apparatus's steam valve neglected loading structure and have its boiling apparatus can effectively prevent steam valve neglected loading. When the steam valve is installed in place, the steam valve is abutted to the trigger part and is triggered, the control device confirms that the steam valve is installed in place when the trigger part is triggered, and if the steam valve is not installed in place, the control device cannot further control the cooking appliance to work, so that the working reliability and the safety of the cooking appliance are improved.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent from the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:
fig. 1 is a perspective view of a face cover according to an embodiment of the present invention;
fig. 2 is a top view of a face cover according to an embodiment of the present invention;
fig. 3 is a three-dimensional structure diagram of the face cover provided by the embodiment of the present invention with a trigger component mounted thereon;
FIG. 4 is a cross-sectional structural view of the cover with a steam valve and a trigger mounted thereon according to an embodiment of the present invention;
FIG. 5 illustrates a top view of a steam valve provided in an embodiment of the present invention;
fig. 6 is a perspective view of a trigger member according to an embodiment of the present invention;
fig. 7 is a structural diagram of a control display panel according to an embodiment of the present invention;
fig. 8 shows a structure diagram of a steam valve according to an embodiment of the present invention.
In the figure, the position of the upper end of the main shaft,
100. a steam valve; 110. a second trigger structure; 111. a raised structure; 120. an elastic structure; 121. a spring;
200. a face cover; 210. a groove structure; 220. mounting holes; 230. a second positioning unit; 240. A second fixing unit; 250. a wire passing hole;
1. a valve body; 11. an air inlet; 12. a return port; 13. an air outlet; 14. a valve seat; 15. a valve cover;
2. a steam chamber;
3. a seal ring;
4. a trigger member; 41. a first trigger structure; 411. a micro-motion trigger button; 42. a mounting structure; 421. a positioning unit; 4211. positioning a pin shaft; 4212. a positioning pin hole; 422. a fixing unit; 4221. a fastener; 4222. a fixing hole; 43. an installation part; 431. a first side surface; 4311. a first positioning unit; 4312. a first fixing unit; 432. a second side surface; 433. a third side; 44. inserting sheets;
5. a control device; 51. a control display panel;
6. wiring; 61. and inserting a spring.
Detailed Description
The present invention is described below based on embodiments, and it is understood by those of ordinary skill in the art that the drawings provided herein are for illustrative purposes and are not necessarily drawn to scale.
Unless the context clearly requires otherwise, throughout the description and the claims, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, what is meant is "including, but not limited to".
As shown in fig. 1 to 8, the present application provides a steam valve neglected loading prevention structure of a cooking appliance and a cooking appliance having the same, wherein the neglected loading prevention structure can effectively prevent the steam valve from being neglected loaded or not being installed in place. When the steam valve is not installed in place or is not installed in place, the cooking appliance cannot work normally, so that the working reliability and safety of the cooking appliance are ensured.
The cooking appliance may be a household appliance such as an electric cooker which needs water and generates steam during heating, the steam valve 100 is mounted on the flour cover 200 of the cooking appliance, and the mode of mounting the steam valve 100 on the flour cover 200 may be a side-drawing type, or may be a mode of mounting and dismounting from the top or the inside of the flour cover 200. The anti-leak structure includes a trigger member 4 provided on the lid 200, the trigger member 4 is connected to a control device 5 of the cooking appliance, as shown in fig. 1 to 3, when the steam valve 100 is mounted in place, the trigger member 4 is brought into contact with the steam valve 100 to be triggered, and the control device 5 confirms that the steam valve 100 is mounted in place when the trigger member 4 is triggered. When the control device 5 confirms that the steam valve 100 is installed in place, the control device 5 operates according to an operation instruction of a user, and if the steam valve 100 is not installed in place or is not installed in place, the control device 5 does not receive a signal that the trigger member 4 is triggered, and the control device 5 does not control the cooking appliance to operate even if the instruction of the user is received. Preferably, the control device 5 is also connected to and able to control an alarm device (not shown in the figures) able to give an alarm in the form of a sound and light or the like. In a specific embodiment, when the control device 5 receives an operation instruction from a user but does not receive a signal that the triggering component 4 is triggered, the control device 5 controls the alarm device to give an alarm to remind the user to check whether the steam valve 100 is installed in place or not. In another specific embodiment, after the control device 5 still does not receive the signal that the triggering component 4 is triggered after the predetermined time period is exceeded, the control device 5 controls the alarm device to alarm to remind the user to check the steam valve 100 in time and confirm that the steam valve 100 is installed in place, and after the steam valve 100 is installed in place, the control device 5 controls the alarm device to stop alarming.
Further, as shown in fig. 2, the cover 200 includes a groove structure 210 for accommodating the steam valve, and after the steam valve 100 is mounted on the cover 200, the space of the groove structure 210 can be filled. As shown in fig. 8, steam valve 100 includes valve body 1, steam chamber 2 has in the valve body 1, be provided with the air inlet 11 with steam chamber 2 intercommunication on the valve body 1, backward flow mouth 12 and gas outlet 13, the bubble route of the air current that admits air that gets into in steam chamber 2 by air inlet 11 flowing through backward flow mouth 12, because the steam valve does not set up the backward flow pad, consequently can guarantee that ponding in the steam valve flows back fast in the cooking utensil, the condition that ponding was thrown away appears when avoiding uncapping, and the manufacturing cost is reduced simultaneously, in addition, make the bubble route of the air current that admits air that gets into in steam chamber 2 by air inlet 11 flowing through backward flow mouth 12, thereby make the air current that admits air can break the bubble of backward flow mouth 12 department, avoid the condition that the bubble spills over, user experience has. For convenience of processing, the valve body is of a split structure, preferably, the valve body 1 comprises a valve seat 14 located at the lower part and a valve cover 15 located at the upper part, the valve seat 14 and the valve cover 15 are buckled together to form the valve body 1, a steam cavity 2 is formed between the valve seat 14 and the valve cover 15, and a sealing ring 3 is arranged between the valve seat 14 and the valve cover 15 for improving the sealing effect. Wherein, air inlet 11 and backward flow mouth 12 set up on valve seat 14, and gas outlet 13 sets up on valve gap 15, and air inlet 11 is higher than backward flow mouth 12 and sets up, so, when cooking utensil cooks the process, steam that its inside produced can enter into steam chamber 2 by air inlet 11 to finally discharge by gas outlet 13, because air inlet 11 is higher than backward flow mouth 12 and sets up, ponding in the steam chamber 2 can flow back to cooking utensil through backward flow mouth 12 in, and can not be with air inlet 11 shutoff. Further, the air outlet direction of the air inlet 11 is crossed with the bubble outlet direction of the return port 12, so that even if bubbles are generated at the return port 12, the bubbles can be broken by the airflow at the air inlet 11, and the condition that the bubbles overflow through a steam valve can be effectively avoided.
Further, as shown in fig. 3, 4 and 6, the trigger member 4 and the steam valve 100 are respectively located at the inner side and the outer side of the flour cover 200, and it should be noted that the inner side and the outer side of the flour cover 200 are described with reference to the cooking device, the inner side of the cooking device is the inner side of the flour cover 200, and the outer side of the cooking device is the outer side of the flour cover 200. The triggering part 4 is provided with a first triggering structure 41, and the steam valve 100 is provided with a second triggering structure 110. The face cover 200 is provided with a mounting hole 220, when the steam valve 100 is mounted in place, the first trigger structure 41 or the second trigger structure 110 passes through the mounting hole 220 to abut against the second trigger structure 110 or the first trigger structure 41, and when the steam valve 100 is mounted in a side-drawing manner, the mounting hole 220 is disposed on the side wall of the groove structure 210. In a specific embodiment, the first triggering mechanism 41 includes a fine motion triggering button 411 disposed on the triggering part 4, and the fine motion triggering button 411 is highly sensitive and can be triggered by only a slight touch. The second trigger structure 110 includes a protrusion structure 111 disposed on the valve body 1, the protrusion structure 111 is connected to the valve body 1 through a resilient structure 120, and the resilient structure 120 is compressed when the protrusion structure 111 abuts against the first trigger structure 41. Preferably, the elastic structure 120 is a spring 121, one end of the protruding structure 111 is used for abutting against a micro-motion trigger button 411 of the trigger component 4 to trigger the micro-motion trigger button 411, and the other end of the protruding structure 111 is connected with the spring 121. The micro-motion trigger button 411 of the trigger component 4 is positioned at one side of the mounting hole 220, one end of the convex structure 111 penetrates through the mounting hole 220 to be abutted against the micro-motion trigger button 411, when the steam valve 100 is mounted in place, the convex structure 111 is abutted against the trigger component 4, and the spring 121 is compressed; when the steam valve 100 is separated from the triggering part 4, one end of the convex structure 111 contacting with the triggering part 4 is pushed out of the steam valve 100 by the spring 121.
Further, as shown in fig. 6, in order to ensure sufficient reliability of the trigger 4, not to be released during long-term use, and also to ensure convenience in the processes of attaching and detaching the trigger 4, the trigger 4 is mounted on the inner wall of the face cover 200 by a mounting structure 42, and the mounting structure 42 includes a positioning unit 421 and/or a fixing unit 422, preferably both the positioning unit 421 and the fixing unit 422, wherein the positioning unit 421 is used for defining the position of the trigger 4 on the face cover 200, and the fixing unit 422 is used for fixing the trigger 4 on the face cover 200. The positioning unit 421 includes a positioning pin 4211 or a positioning pin hole 4212 arranged on the surface cover 200, and a positioning pin hole 4212 or a positioning pin 4211 arranged on the trigger component 4 and matched with the positioning pin 4211 or the positioning pin hole 4212. The fixing unit 422 includes fixing holes 4222 provided on the face cover 200 and the trigger member 4, and the trigger member 4 and the face cover 200 are fixedly coupled by a fastener 4221 such as a screw and the fixing holes 4222. Of course, it is understood that the positioning unit 421 and the fixing unit 422 are not limited to the above structure, and may be installed and fixed by riveting or by snap-fit connection.
As shown in fig. 2 and 6, the trigger member 4 includes a rectangular mounting portion 43, the mounting portion 43 is preferably of a rectangular parallelepiped structure, a fine movement trigger button 411 is provided on a first side surface 431 of the mounting portion 43, and the fine movement trigger button 411 is provided on an edge portion of the first side surface 431 for easy mounting. A first positioning unit 4311 and a first fixing unit 4312 are further disposed on the first side 431, and a second positioning unit 230 and a second fixing unit 240 respectively coupled to the first positioning unit 4311 and the first fixing unit 4312 on the upper cover 200 are correspondingly disposed, and preferably, the first positioning unit 4311 and the first fixing unit 4312 are respectively disposed at two opposite vertex angles of the first side 431 of the mounting portion 43. The first positioning unit 4311 is one of the positioning pin 4211 and the positioning pin hole 4212, and the second positioning unit 230 is the other of the positioning pin 4211 or the positioning pin hole 4212. Each of the first fixing unit 4212 and the second fixing unit 240 is a fixing hole 4222, and the two fixing holes 4222 are fixedly connected by a fastener 4221. In a specific embodiment, the first positioning unit 4311 is a positioning pin hole 4212, the second positioning unit 230 is a positioning pin shaft 4211, the first fixing unit 4312 and the second fixing unit 240 are fixing holes 4222, and the positioning pin hole 4212 and the fixing holes 4222 are disposed at two diagonal positions of the mounting portion 43. In another specific embodiment, the first positioning unit 4311 is a positioning pin 4211, the second positioning unit 230 is a positioning pin hole 4212, the first fixing unit 4312 and the second fixing unit are fixing holes 4222, and the positioning pin 4211 and the fixing holes 4222 are respectively disposed at two diagonal positions of the mounting portion 43.
As shown in fig. 3 and 7, the control device 5 further includes a control display panel 51, the control display panel 51 is electrically connected to the trigger member 4 through a wire 6, and the wire 6 can supply power and transmit signals. The control device 5 stores a corresponding program, and the control device 5 determines whether the triggering member 4 is triggered according to the setting of the program, and further controls whether the cooking device is operated. One end of the wiring 6 is connected with the control display panel 51, the other end of the wiring 6 is provided with a plug spring 61 or a plug sheet 44, the trigger part 4 is provided with the plug sheet 44 or the plug spring 61, and the plug spring 61 is matched with the plug sheet 44 to connect the trigger part 4 with the control display panel 51. In a preferred embodiment, the wires 6 include two wires, the end of the two wires 6 connected to the triggering part 4 is provided with a plug spring 61, the second side 432 and the third side 433 of the mounting part 43 are respectively provided with a plug sheet 44 matched with the plug spring 61, the two wires 6 connect the triggering part 4 and the control device 5 together through the plug spring 61 and the plug sheet 44, and a loop is formed between the triggering part 4 and the control device 5. Preferably, a wire hole 250 is further provided on the face cover 200 to facilitate wiring of the wire harness 6.
The application also provides a cooking appliance, which comprises the steam valve anti-leakage structure of the cooking appliance, so that the condition that the steam valve is not leaked to be installed or is not installed in place is prevented.
The utility model can be various cooking electrical appliances such as a micro-pressure cooker, an electric pressure cooker, an electric steamer and the like.
Those skilled in the art will readily appreciate that the above-described preferred embodiments may be freely combined, superimposed, without conflict.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and those skilled in the art can make various modifications and variations. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (11)
1. The steam valve anti-leakage structure of the cooking appliance is characterized by comprising a trigger part arranged on a face cover, wherein the trigger part is connected with a control device of the cooking appliance, when the steam valve is installed in place, the trigger part is abutted against the steam valve to be triggered, and the control device is used for confirming that the steam valve is installed in place when the trigger part is triggered.
2. The steam valve anti-leak structure of a cooking appliance according to claim 1, wherein the cover is provided with a mounting hole, the trigger member and the steam valve are respectively located at the inner side and the outer side of the cover, the trigger member is provided with a first trigger structure, the steam valve is provided with a second trigger structure, and when the steam valve is mounted in place, the first trigger structure or the second trigger structure passes through the mounting hole to abut against the second trigger structure or the first trigger structure.
3. A steam valve leakage prevention structure of a cooking appliance according to claim 2, wherein said cover comprises a groove structure for receiving said steam valve, said mounting hole being provided on a side wall of said groove structure.
4. A steam valve anti-leak structure of a cooking appliance according to claim 2, wherein said first trigger structure comprises a micro-motion trigger button provided on said trigger member; and/or the presence of a gas in the gas,
the steam valve comprises a valve body, and the second trigger structure comprises a protruding structure arranged on the valve body.
5. A steam valve anti-leak structure of a cooking appliance as claimed in claim 4, wherein said protrusion is connected to said valve body by a resilient structure, said resilient structure being compressed when said protrusion abuts against said first trigger structure.
6. Steam valve leakage prevention structure of a cooking appliance according to one of claims 1 to 5, wherein the triggering part is mounted on the inner wall of the face cover by a mounting structure, the mounting structure comprising a positioning unit and/or a fixing unit,
the positioning unit is used for limiting the position of the trigger component on the face cover, and the fixing unit is used for fixing the trigger component on the face cover.
7. The steam valve leak-proof structure of a cooking appliance according to claim 6, wherein the positioning unit comprises a positioning pin or a positioning pin hole provided on the face cover, and further comprises a positioning pin hole or a positioning pin shaft provided on the trigger member and engaged with the positioning pin or the positioning pin hole; and/or the presence of a gas in the gas,
the fixing unit comprises fixing holes arranged on the face cover and the trigger component, and the trigger component is fixedly connected with the face cover through a fastener and the fixing holes.
8. A steam valve anti-leak structure of a cooking appliance according to claim 7, wherein said trigger member comprises a square mounting portion,
the positioning pin shaft and the fixing hole are respectively arranged at two diagonal positions of the mounting part; or,
the positioning pin hole and the fixing hole are arranged at two diagonal positions of the mounting part.
9. The steam valve leakage prevention structure of a cooking appliance according to any one of claims 1 to 5, wherein the control device comprises a control display panel, and the control display panel is electrically connected to the trigger member through a wiring.
10. The steam valve anti-leaking structure of a cooking appliance as claimed in claim 9, wherein one end of the wiring is connected to the control display panel, the other end of the wiring is provided with an inserting spring or an inserting sheet, the triggering member is provided with an inserting sheet or an inserting spring, and the inserting spring is matched with the inserting sheet to connect the triggering member with the control display panel.
11. A cooking appliance comprising a lid and a steam valve provided on said lid, characterized by further comprising a steam valve anti-leak structure of the cooking appliance of any one of claims 1 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821279621.8U CN209090926U (en) | 2018-08-09 | 2018-08-09 | Steam valve neglected loading prevention structure of cooking appliance and cooking appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821279621.8U CN209090926U (en) | 2018-08-09 | 2018-08-09 | Steam valve neglected loading prevention structure of cooking appliance and cooking appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209090926U true CN209090926U (en) | 2019-07-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821279621.8U Active CN209090926U (en) | 2018-08-09 | 2018-08-09 | Steam valve neglected loading prevention structure of cooking appliance and cooking appliance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209090926U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108742164A (en) * | 2018-08-09 | 2018-11-06 | 珠海格力电器股份有限公司 | Steam valve neglected loading prevention structure of cooking appliance and cooking appliance |
-
2018
- 2018-08-09 CN CN201821279621.8U patent/CN209090926U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108742164A (en) * | 2018-08-09 | 2018-11-06 | 珠海格力电器股份有限公司 | Steam valve neglected loading prevention structure of cooking appliance and cooking appliance |
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