CN111700493A - Locking device and pressure cooker thereof - Google Patents
Locking device and pressure cooker thereof Download PDFInfo
- Publication number
- CN111700493A CN111700493A CN202010812689.3A CN202010812689A CN111700493A CN 111700493 A CN111700493 A CN 111700493A CN 202010812689 A CN202010812689 A CN 202010812689A CN 111700493 A CN111700493 A CN 111700493A
- Authority
- CN
- China
- Prior art keywords
- cover
- stop block
- locking
- block
- magnetic block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/08—Pressure-cookers; Lids or locking devices specially adapted therefor
- A47J27/0802—Control mechanisms for pressure-cookers
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/08—Pressure-cookers; Lids or locking devices specially adapted therefor
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/08—Pressure-cookers; Lids or locking devices specially adapted therefor
- A47J27/0804—Locking devices
Abstract
The invention discloses a locking device, which comprises a stop block arranged on a cooker cover, wherein the stop block is abutted against cooker teeth of the cooker body; the stop block is connected with a control rod, and one end of the control rod, which is far away from the stop block, is provided with a locking hole; a steam actuator is arranged on the lock cover which covers the pot body; the steam actuator comprises a stop block for controlling the motion state of the control rod and a power set for controlling the stop block to ascend and descend into and out of the locking hole through magnetic permeability change; the power assembly comprises a soft magnetic block, a hard magnetic block and an elastic piece connected between the soft magnetic block and the hard magnetic block. The invention also discloses a pressure cooker using the locking device. The invention can effectively solve the problems of non-opening of the pot cover and steam scald prevention, and has the advantages of simple structure and high safety factor.
Description
Technical Field
The invention relates to the field of kitchen appliances, in particular to a locking device and a pressure cooker thereof.
Background
Pressure cookers are kitchen appliances that are used very frequently. The protective device is a floating valve assembly when the pressure cooker on the market is opened at present, and the principle is that when the electric pressure cooker works, the pressure in the cooker pushes a floating rod to float, and a control rod is locked, so that a stop rod is abutted against cooker teeth on the cooker body, and the cooker cover is prevented from being rotated and opened. There are a number of disadvantages with this approach. Some foods can expand after being cooked, for example, rice can expand after being cooked, and the floating rod can not be pushed up and down under enough conditions, so that the control rod can not move and can be pushed against the pot teeth all the time, and the pot cover can not be opened. In addition, in the use process, when the floating rod falls down for a while, a large amount of steam still exists inside the pressure cooker, and the danger that an operator opens the cooker cover at the moment and is scalded by the steam exists.
Therefore, there is a need to develop or improve a locking device and a pressure cooker thereof.
Disclosure of Invention
The invention aims to provide a locking device and a pressure cooker thereof to solve the problems of unopened cooker cover and steam scald.
In order to achieve the purpose, the locking device provided by the invention comprises a stop block arranged on a pot cover, wherein the stop block is abutted against pot teeth of a pot body; the stop block is connected with a control rod, and one end of the control rod, which is far away from the stop block, is provided with a locking hole; a steam actuator is arranged on the lock cover which covers the pot body; the steam actuator comprises a stop block for controlling the motion state of the control rod and a power assembly for controlling the stop block to be lifted into and out of the locking hole through magnetic permeability change; the power assembly comprises a soft magnetic block, a hard magnetic block and an elastic piece connected between the soft magnetic block and the hard magnetic block.
Preferably, the steam actuator further comprises a housing with an opening at the top and a fixed cover covering the opening; a cavity communicated with the opening is formed in the shell; the fixed cover is provided with a clearance hole for the stop block to pass through, and the clearance hole is communicated with the cavity; the power assembly is disposed within the cavity.
Preferably, the hard magnetic block and the soft magnetic block are vertically arranged, and the hard magnetic block is positioned above the soft magnetic block; a first step part is formed on the hard magnetic block; a second step part is formed on the soft magnetic block; one end of the elastic piece is abutted against the first step part, and the other end of the elastic piece is abutted against the second step part; the hard magnetic block is connected with the stop block.
Preferably, the steam actuator further comprises a sealing gasket and a locking member; the shell is embedded in a through hole formed in the lock cover; the sealing gasket is sealed in a gap formed between the shell and the through hole of the locking cover, and the sealing gasket is fixed on the locking cover through the locking piece.
Preferably, the clearance hole is concentrically arranged with the locking hole.
Preferably, the housing is made of aluminum.
The invention also provides a pressure cooker, which comprises a shell; a pot body and a lock cover covering the pot body are arranged in the shell; the housing comprises a pot cover; the locking device is also included.
Preferably, the stop block is disposed on the pot cover; the steam actuator is disposed on the latch cover.
Preferably, the outer surface of the pot body facing the shell is provided with pot teeth; the locking cover is provided with cover teeth which are rotationally matched with the pot teeth and used for locking and unlocking.
Preferably, a heating device is arranged in the pot body.
Compared with the prior art, the locking device and the pressure cooker thereof provided by the technical scheme have the beneficial effects that: the stop block is arranged, so that the stop block can stop the pot teeth when a large amount of steam exists in the pressure cooker; the control rod is arranged and the control rod is provided with the locking hole, so that the rotation state of the control rod is controlled to control the motion state of the stop block; the stop block and the power set are arranged, so that the stop block is controlled to enter and exit the locking hole, and the motion state of the control rod is controlled; the pot cover is provided with the soft magnetic block, the hard magnetic block and the elastic piece, and the soft magnetic block and the hard magnetic block have the physical characteristics and are matched with the elastic piece, so that when the temperature in the pot body rises to generate a large amount of steam, the movable block is prevented from locking the control rod, the stop block is prevented from rotating, and then the pot teeth are stopped by the stop block, and the pot cover is prevented from rotating; when the temperature in the pot body is reduced, the stop block is separated from the locking hole due to the self physical characteristics of the soft magnetic block and the hard magnetic block, the control rod rotates to cause the stop block not to stop the pot teeth, the pot cover can be smoothly opened, and meanwhile, the phenomenon that a large amount of steam exists in the pot body to scald is avoided.
Drawings
The invention will be further understood from the following description in conjunction with the accompanying drawings. The components in the figures are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the embodiments. Like reference numerals designate corresponding parts throughout the different views.
FIG. 1 is a schematic structural diagram illustrating an unlocked state of a pressure cooker according to an embodiment of the present invention;
FIG. 2 is a schematic view of a portion of A of FIG. 1;
FIG. 3 is a schematic structural view illustrating a locked state of the pressure cooker according to the embodiment of the present invention;
fig. 4 is a partial structural view of B in fig. 3.
Description of reference numerals: 1-a stop block; 2-a pot body; 3-pot teeth; 4-a control lever; 5-locking holes; 6-locking the cover; 7-a steam actuator; 8-a stop block; 9-soft magnetic block; 10-hard magnetic block; 11-an elastic member; 12-a housing; 13-a fixed cover; 14-a gasket; 15-a locking member; 16-pot cover.
Detailed Description
The invention is further illustrated with reference to the following figures and examples.
The locking device shown in fig. 1-4 comprises a stop block 1 arranged on a pot cover 16, wherein the stop block 1 is abutted against pot teeth 3 of a pot body 2; the stop block 1 is connected with a control rod 4, and one end, far away from the stop block 1, of the control rod 4 is provided with a locking hole 5; a steam actuator 7 is arranged on a lock cover 6 which covers the pot body 2; the steam actuator 7 comprises a stop block 8 for controlling the motion state of the control rod 4 and a power assembly for controlling the stop block 8 to be lifted into and out of the locking hole 5 through the change of magnetic permeability; the power assembly comprises a soft magnetic block 9, a hard magnetic block 10 and an elastic piece 11 connected between the soft magnetic block 9 and the hard magnetic block 10. Further, the elastic member 11 is a spring.
In the embodiment, the stop block 1 is arranged, so that the stop block 1 can stop the pot teeth 3 when a large amount of steam exists in the pressure cooker; the control rod 4 is arranged, and the control rod 4 is provided with the locking hole 5, so that the movement state of the stop block 1 is controlled by controlling the rotation state of the control rod 4; the stop block 8 is controlled to move in and out of the locking hole 5 by arranging the stop block 8 and the power set, so that the motion state of the control rod 4 is controlled; by arranging the soft magnetic block 9, the hard magnetic block 10 and the elastic piece 11, and by the self physical characteristics of the soft magnetic block 9 and the hard magnetic block 10 and matching with the elastic piece 11, the control rod 4 is prevented from being locked by the moving block 8 when the temperature in the pot body 2 rises to generate a large amount of steam, so that the stopping block 1 is prevented from rotating and stopping the pot teeth 3 through the stopping block 1, and the pot cover 16 is prevented from rotating; when the temperature in the pot body 2 drops, the stop block 8 is separated from the locking hole 5 due to the self physical characteristics of the soft magnetic block 9 and the hard magnetic block 10, the control rod 4 rotates to cause the stop block 1 not to stop the pot teeth 3, the pot cover 16 can be smoothly opened, and meanwhile, the phenomenon that a large amount of steam exists in the pot body 2 to scald is avoided.
As shown in fig. 2, in order to install the power assembly, the steam actuator 7 in this embodiment further includes a housing 12 having an opening at the top thereof and a fixing cover 13 covering the opening; a cavity communicated with the opening is arranged in the shell 12; the fixed cover 13 is provided with a clearance hole for the stop block 8 to pass through, and the clearance hole is communicated with the cavity; the power assembly is arranged in the cavity; wherein the clearance hole is concentrically arranged with the locking hole 5.
Further, in order to realize the lifting motion of the hard magnetic block 10 relative to the soft magnetic block 9, the hard magnetic block 10 and the soft magnetic block 9 in this embodiment are vertically arranged, and the hard magnetic block 10 is located above the soft magnetic block 9; a first step part is formed on the hard magnetic block 10; a second step part is formed on the soft magnetic block 9; one end of the elastic piece 11 is abutted with the first step part, and the other end is abutted with the second step part; the hard magnetic block 10 is connected with the stop block 8. Further, the stopper 8 is molded in an over-molding manner.
Further, in order to prevent the installation of the stationary housing 12 and to prevent the escape of steam, the steam actuator 7 assembly in this embodiment further comprises a gasket 14 and a locking member 15; the shell 12 is embedded in a through hole formed in the lock cover 6; the sealing gasket 14 is sealed in a gap formed between the housing 12 and the through hole of the locking cover 6, and the sealing gasket 14 is fixed on the locking cover 6 through the locking member 15.
Further, in order to realize better heat conduction and ensure better heat sensing of the soft magnetic block 9, the housing 12 in this embodiment is made of an aluminum material.
The present embodiment also provides a pressure cooker, which includes a housing; a pot body 2 and a lock cover 6 covering the pot body 2 are arranged in the shell; the housing includes a pan cover 16; the locking device is also included; the stop block 1 is arranged on the pot cover 16; the steam actuator 7 is mounted on the locking cover 6; the outer surface of the pot body 2 facing the shell is provided with pot teeth 3; and cover teeth which are matched with the pot teeth 3 in a rotating mode and used for locking and unlocking are arranged on the lock cover 6.
In this embodiment, the pressure cooker is an electric pressure cooker, and a heating device is arranged in a pot body 2 of the electric pressure cooker.
The working principle is as follows: firstly, when the electric pressure cooker is in an idle state, the soft magnetic block 9 and the hard magnetic block 10 are attracted together, and the spring is in a compressed state. When the electric pressure cooker works, in the process that food is heated, moisture in the food absorbs heat until the food is boiled, and a large amount of steam is generated. The soft magnetic block 9 absorbs the heat conducted by the steam, when the temperature reaches the soft magnetic Curie temperature point, the soft magnetic conductivity is reduced at a very fast speed, and the suction force between the soft magnetic block and the hard magnetic block 10 is greatly reduced; then, the spring pushes the hard magnetic block 10 open, the stop block 8 passes through the locking hole 5 of the control rod 4 to prevent the control rod 4 from rotating, and then the stop block 1 stops the pot teeth 3 to prevent the pot cover 16 from rotating. And when the electric pressure cooker is powered off until the food is cooked, the food and the electric pressure cooker are gradually cooled to a temperature lower than the Curie temperature point of the soft magnetic block 7, the soft magnetic block 9 and the hard magnetic block 10 in the steam actuator 7 are attracted again, and the stop block 8 is separated from the locking hole 5 of the control rod 4.
The above examples are to be construed as merely illustrative and not limitative of the remainder of the disclosure. After reading the description of the invention, the skilled person can make various changes or modifications to the invention, and these equivalent changes and modifications also fall into the scope of the invention defined by the claims.
Claims (10)
1. A locking device is characterized by comprising a stop block arranged on a pot cover, wherein the stop block is abutted against pot teeth of a pot body; the stop block is connected with a control rod, and one end of the control rod, which is far away from the stop block, is provided with a locking hole; a steam actuator is arranged on the lock cover which covers the pot body; the steam actuator comprises a stop block for controlling the motion state of the control rod and a power assembly for controlling the stop block to be lifted into and out of the locking hole through magnetic permeability change; the power assembly comprises a soft magnetic block, a hard magnetic block and an elastic piece connected between the soft magnetic block and the hard magnetic block.
2. The locking device of claim 1, wherein the steam actuator further comprises a housing having an opening at the top thereof and a fixing cover covering the opening; a cavity communicated with the opening is formed in the shell; the fixed cover is provided with a clearance hole for the stop block to pass through, and the clearance hole is communicated with the cavity; the power assembly is disposed within the cavity.
3. The locking device of claim 2 wherein the hard and soft magnetic blocks are in a perpendicular arrangement with the hard magnetic block above the soft magnetic block; a first step part is formed on the hard magnetic block; a second step part is formed on the soft magnetic block; one end of the elastic piece is abutted against the first step part, and the other end of the elastic piece is abutted against the second step part; the hard magnetic block is connected with the stop block.
4. The locking device of claim 2, wherein the steam actuator further comprises a gasket and a locking member; the shell is embedded in a through hole formed in the lock cover; the sealing gasket is sealed in a gap formed between the shell and the through hole of the locking cover, and the sealing gasket is fixed on the locking cover through the locking piece.
5. A locking device according to claim 2, wherein said clearance hole is arranged concentrically with said locking hole.
6. The locking device of claim 2, wherein the housing is made of aluminum.
7. A pressure cooker comprising a housing; a pot body and a lock cover covering the pot body are arranged in the shell; the housing comprises a pot cover; characterized in that it further comprises a locking device according to any one of claims 1 to 6.
8. The pressure cooker of claim 7, wherein the stop block is disposed on the lid; the steam actuator is disposed on the latch cover.
9. The pressure cooker of claim 8, wherein the outer surface of the cooker body facing the outer shell is provided with cooker teeth; the locking cover is provided with cover teeth which are rotationally matched with the pot teeth and used for locking and unlocking.
10. Pressure cooker according to claim 7, characterized in that the body is provided with heating means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010812689.3A CN111700493A (en) | 2020-08-13 | 2020-08-13 | Locking device and pressure cooker thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010812689.3A CN111700493A (en) | 2020-08-13 | 2020-08-13 | Locking device and pressure cooker thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111700493A true CN111700493A (en) | 2020-09-25 |
Family
ID=72547222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010812689.3A Pending CN111700493A (en) | 2020-08-13 | 2020-08-13 | Locking device and pressure cooker thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111700493A (en) |
-
2020
- 2020-08-13 CN CN202010812689.3A patent/CN111700493A/en active Pending
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| PB01 | Publication | ||
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