CN112244616A

CN112244616A - Anti-overflow prevents electric rice cooker of steam scald

Info

Publication number: CN112244616A
Application number: CN202011126507.3A
Authority: CN
Inventors: 沈家楠
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-10-20
Filing date: 2020-10-20
Publication date: 2021-01-22

Abstract

The invention discloses an anti-overflow and anti-steam-scald electric cooker which comprises a shell, an inner container and a cooker cover, wherein a heater fixed on the bottom wall of the shell is abutted to the bottom of the inner container, the shell is rotatably connected with the cooker cover through a pin shaft, a cavity is formed in the cooker cover, a partition plate is hermetically and slidably connected in the cavity, the top of one end of the cavity is connected with an air guide pipe, one end, far away from the cavity, of the air guide pipe is communicated with the inner container, and an exhaust cavity is formed in one end, far away from the air guide pipe, of the. Has the advantages that: according to the electric cooker, as the partition plate continuously descends, the pressure below the partition plate exceeds the elastic force of the tightening spring to push the sliding block to slide downwards, so that the first air guide hole is communicated with the second air guide hole, low-temperature water at the bottom of the cavity is pressed into the inner container, the water is sprayed into the inner container in an airflow column mode along with compressed gas, the effect of puncturing water bubbles is achieved, and food liquid in the electric cooker is prevented from overflowing.

Description

Anti-overflow prevents electric rice cooker of steam scald

Technical Field

The invention relates to the technical field of cooking equipment, in particular to an anti-overflow and anti-steam-scald electric cooker.

Background

The electric cooker is also called as an electric pot and an electric cooker; the cooker converts electric energy into heat energy, has various heating operation functions of steaming, boiling, stewing and the like on food, and is convenient to use, safe and reliable; the multifunctional cooking machine can cook food, can preserve heat, is clean and sanitary to use, has no pollution, saves time and labor, and is one of indispensable tools for modernization of housework.

The phenomenon that liquid overflows often can appear in electric rice cooker to rice continuation cook in-process, its reason is because in the heating process, the water of cooking evaporates sharply after reaching the boiling point, generate many bubbles of different sizes in the time of increasing atmospheric pressure, and electric rice cooker's inner bag is in relative sealed environment, the bubble breaks and will produce liquid residue after growing completely, the growth time speed of bubble under general condition is greater than the speed of breaking, make the water level of bubble increase gradually until colliding with the pot cover bottom, the pressure that the bubble broke and produced this moment can make the gap department of pot cover and pot body produce liquid and remain, and the steam temperature of overflowing in the electric rice cooker is higher, can cause the accident of scald to appear, for this, we have provided an anti-overflow steam scald's electric rice cooker.

Disclosure of Invention

The invention aims to solve the problems that liquid often overflows during the continuous cooking process of rice in the prior art, and scalding accidents are caused due to high temperature of steam escaping from an electric cooker, and provides an anti-overflow and anti-steam-scald electric cooker.

In order to achieve the purpose, the invention adopts the following technical scheme: an anti-overflow and anti-steam-scald electric cooker comprises a shell, an inner container and a cooker cover, wherein the bottom of the inner container is abutted against a heater fixed on the bottom wall of the shell, the shell is rotatably connected with the cooker cover through a pin shaft, a cavity is formed in the cooker cover, a partition plate is hermetically and slidably connected in the cavity, the top of one end of the cavity is connected with an air guide pipe, one end, away from the cavity, of the air guide pipe is communicated with the inner container, one end, away from the air guide pipe, of the cooker cover is provided with an exhaust cavity, the exhaust cavity is connected with the top of the cavity through a communicating pipe, and the cavity wall of the top of the;

the bottom of the cavity is provided with a plurality of grooves, the bottom of each groove is provided with a through hole communicated with the inner container, a sliding block is connected in each groove in a sealing and sliding manner, a tightening spring is arranged in each groove, two ends of each tightening spring are respectively fixedly connected with the bottom surface of the sliding block and the bottom of the groove, an L-shaped first air guide hole is formed in each sliding block, and a plurality of L-shaped second air guide holes are formed in the bottom of the cavity and are respectively connected with the side wall of the groove;

a smooth chamber has been seted up at the top of pot cover, sliding connection has a slide in the smooth chamber, reset spring of up end fixedly connected with of slide, reset spring keeps away from the one end of slide and the top chamber wall fixed connection in smooth chamber, the bottom welding of slide has a vertical connecting rod, the lower extreme of connecting rod runs through the bottom chamber wall in smooth chamber and extends to in the cavity, the connecting rod is located an electro-magnet of one end fixedly connected with of cavity, the both ends of electro-magnet are connected with a conducting block, the up end of baffle inlays and is equipped with a permanent magnetism piece, the both sides that the baffle is located permanent magnetism piece respectively inlay and are equipped with a electrification piece, be provided with the solenoid valve on the air duct, the solenoid valve passes through the wire and is connected with two electrification pieces and electricity rice cooker power electricity.

In the above-mentioned electric rice cooker of anti-overflow steam scald, the bottom fixedly connected with a memory spring of exhaust chamber, the top fixedly connected with a piston plate of memory spring.

In foretell anti-overflow anti-steam scald's electric rice cooker, the lower terminal surface welding of baffle has two vertical bracing pieces, two the common welding of lower extreme of bracing piece has a clamp plate, the bottom central point of cavity puts and rotates through the bearing and be connected with a threaded rod, the threaded rod passes through threaded connection with the clamp plate, the lower extreme of threaded rod extends to in the inner bag and fixedly connected with scraper blade.

Compared with the prior art, the invention has the advantages that:

1. according to the invention, water vapor in the inner container enters the cavity above the partition plate from the air guide pipe and then enters the exhaust cavity, and because the temperature of the water vapor is higher and exceeds the deformation temperature of the memory spring, the memory spring deforms and extends to push the piston plate to move upwards to seal the exhaust pipe, so that the high-temperature vapor is prevented from escaping to cause scald;

2. according to the electric cooker, along with the continuous descending of the partition plate, the pressure intensity below the partition plate exceeds the elastic force of the tightening spring to push the sliding block to slide downwards, so that the first air guide hole is communicated with the second air guide hole, low-temperature water at the bottom of the cavity is pressed into the inner container, the water is sprayed out of the inner container in an airflow column mode along with compressed gas, the effect of puncturing water bubbles is achieved, and food liquid in the electric cooker is prevented from overflowing;

3. according to the invention, as the energy and heat of the hot steam are consumed in the process of pushing the partition plate to move downwards and the heat dissipation and cooling of the pot cover are accompanied, the temperature of the hot steam above the partition plate is reduced and is lower than the deformation temperature of the memory spring, the exhaust pipe is reopened, the gas is decompressed, the scalding phenomenon cannot be caused, and then the inner container is used for refilling the cavity below the partition plate, so that repeated operations of air injection defoaming, temperature reduction and pressure relief are realized.

4. In the process that the partition plate slides up and down, the threaded rod in threaded connection with the pressing plate is driven to rotate, so that the defoaming effect is achieved on one hand, and food residues on the pot cover are scraped off on the other hand.

Drawings

FIG. 1 is a schematic structural view of an anti-overflow and anti-steam-scald electric cooker provided by the invention;

FIG. 2 is an enlarged schematic view of the position A of the spill-proof steam scald-proof electric rice cooker provided by the present invention;

fig. 3 is an enlarged schematic view of the position B of the spill-proof steam scald-proof electric cooker provided by the invention.

In the figure: the device comprises a shell 1, a liner 2, a heater 3, a pot cover 4, a cavity 5, a partition plate 6, an air guide pipe 7, an electromagnetic valve 8, a groove 9, a sliding block 10, a tightening spring 11, a through hole 12, a first air guide hole 13, a second air guide hole 14, a support rod 15, a pressure plate 16, a threaded rod 17, a scraping plate 18, an exhaust cavity 19, a memory spring 20, a piston plate 21, an exhaust pipe 22, a sliding cavity 23, a sliding plate 24, a connecting rod 25, a return spring 26, an electromagnet 27, a conductive block 28, a permanent magnet 29 and an electric connection block 30.

Detailed Description

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are only for illustrative purposes and are not intended to limit the scope of the present invention.

Examples

Referring to fig. 1-3, an anti-overflow and anti-steam scald electric cooker comprises a shell 1, an inner container 2 and a cooker cover 4, wherein the bottom of the inner container 2 is abutted against a heater 3 fixed on the bottom wall of the shell 1, the shell 1 is rotatably connected with the cooker cover 4 through a pin shaft, a cavity 5 is formed in the cooker cover 4, a partition plate 6 is hermetically and slidably connected in the cavity 5, the top of one end of the cavity 5 is connected with an air duct 7, one end, away from the cavity 5, of the air duct 7 is communicated with the inner container 2, one end, away from the air duct 7, of the cooker cover 4 is provided with an exhaust cavity 19, the exhaust cavity 19 is connected with the top of the cavity 5 through a communicating pipe, and;

the bottom of the cavity 5 is provided with a plurality of grooves 9, the bottom of each groove 9 is provided with a through hole 12 communicated with the inner container 2, each groove 9 is internally connected with a slide block 10 in a sealing and sliding manner, each groove 9 is internally provided with a tightening spring 11, two ends of the tightening spring 11 are respectively fixedly connected with the bottom surface of the slide block 10 and the bottom of the groove 9, each slide block 10 is internally provided with an L-shaped first air guide hole 13, the bottom of the cavity 5 is provided with a plurality of L-shaped second air guide holes 14 respectively connected with the side wall of the groove 9, when the tightening spring 11 is in a normal state, the slide block 10 and the groove wall of the groove 9 jointly plug the first air guide hole 13 and the second air guide holes 14, the lower end surface of the partition plate 6 is welded with two vertical support rods 15, the lower ends of the two support rods 15 are welded together with a press plate 16, the bottom center position of, the threaded rod 17 is connected with the pressure plate 16 through threads, and the lower end of the threaded rod 17 extends into the inner container 2 and is fixedly connected with the scraper 18.

The top of the pot cover 4 is provided with a sliding cavity 23, the sliding cavity 23 is connected with a sliding plate 24 in a sliding way, the upper end surface of the sliding plate 24 is fixedly connected with a reset spring 26, one end of the reset spring 26 far away from the sliding plate 24 is fixedly connected with the top cavity wall of the sliding cavity 23, the bottom of the sliding plate 24 is welded with a vertical connecting rod 25, the lower end of the connecting rod 25 penetrates through the bottom cavity wall of the sliding cavity 23 and extends into the cavity 5, one end of the connecting rod 25 positioned in the cavity 5 is fixedly connected with an electromagnet 27, two ends of the electromagnet 27 are connected with a conductive block 28, the upper end surface of the partition plate 6 is embedded with a permanent magnet 29, two sides of the partition plate 6 positioned in the permanent magnet 29 are respectively embedded with a conductive block 30, the air duct 7 is provided with an electromagnetic valve 8, the electromagnetic valve 8 is in a closed state under the non-energized state, the electromagnetic valve 8 is electrically connected with the, and the magnetic force is greater than the elastic force of the return spring 26.

The bottom of the exhaust cavity 19 is fixedly connected with a memory spring 20, the memory spring 20 is made of CuZnAl memory alloy and is a temperature sensing driving element which can automatically stretch and retract along with the change of temperature, the memory spring 20 can stretch when reaching 60 ℃, the memory spring recovers to the original length when being cooled, and the top of the memory spring 20 is fixedly connected with a piston plate 21.

In the invention, in an initial state, the partition board 6 is positioned at the bottom of the cavity 5, when the electric cooker works, the heating plate 3 heats the inner container 2, the water in the inner container 2 is gradually heated at the heating temperature of the heating plate 3 to generate steam, so that the air pressure in the inner container 2 is gradually increased, when the pressure of the air pressure on the slide block 10 is greater than the elastic force of the tightening spring 11, the slide block 10 slides upwards to enable the first air guide hole 13 and the second air guide hole 14 to be communicated, the steam in the inner container 2 starts to be filled into the cavity 5, the pressure is gradually increased along with the gradual increase of the steam below the partition board 6, the partition board 6 is pushed to move upwards until the partition board 6 moves upwards to the top of the cavity 5 to be abutted against the electromagnet 27, at the moment, the two electric connection blocks 30 on the partition board 6 are in contact with the electric conduction blocks 28 at the two ends of the electromagnet 27, the electromagnetic valve 8 is in an, the pressure on the sliding block 10 is reduced, the sliding block 10 slides downwards to close the first air guide hole 13 and the second air guide hole 14 again, the water vapor in the inner container 2 enters the cavity 5 above the partition plate 6 from the air guide pipe 7 and then enters the exhaust cavity 19, and the memory spring 20 extends to push the piston plate 21 to move upwards to close the exhaust pipe 22 due to the fact that the temperature of the water vapor at the moment is higher than the deformation temperature of the memory spring 20, and the high-temperature steam is prevented from escaping to cause scalding.

The exhaust pipe 22 is closed, the water vapor can only gather in the cavity 5 above the partition plate 6, the pressure intensity exceeds the air pressure below the partition plate 6 along with the increase of the water vapor, the partition plate 6 is pushed to slide downwards, the electromagnet 27 is pulled to descend together with the sliding of the partition plate 6 because the electromagnet 27 is connected into the circuit of the electric cooker to generate magnetism to attract with the permanent magnet block on the partition plate 6, the electromagnet 27 keeps the electromagnetic valve 8 in an open state, the water vapor below the partition plate 6 stays for a period of time, part of the water is liquefied into water at the bottom of the cavity 5, the pressure intensity below the partition plate 6 exceeds the elastic force of the tightening spring 11 to push the sliding block 10 to slide downwards along with the continuous descending of the partition plate 6, so that the first air guide hole 13 is connected and communicated with the second air guide hole 14, the low-temperature water at the bottom of the cavity 5 is pressed into the inner container 2, the water, meanwhile, after the partition board 6 descends to a certain height, the slide plate 24 in the slide cavity 23 limits the electromagnet 27, so that the partition board is separated from the electromagnet 27, the electric connection block 30 is disconnected from the conductive block 28, the electromagnetic valve 8 is closed, subsequent water vapor cannot enter the cavity 5 above the partition board 6, the self energy and heat are consumed in the process that the partition board 6 is pushed to move downwards, the temperature of the heat vapor above the partition board 6 is reduced and is lower than the deformation temperature of the memory spring 20 along with the heat dissipation and cooling of the cooker cover 4, the exhaust pipe 22 is opened again, the part of gas is decompressed, the scalding phenomenon cannot be caused, the inner container 2 is filled in the cavity 5 below the partition board 6 again, repeated defoaming and smelling decompression operations are realized, and the threaded rod is driven to be in threaded connection with the pressing plate 16 to rotate in the process that the partition board 6 slides up and down, on one hand, the defoaming effect is achieved, and on the other hand, food residues on the pot cover 4 are scraped off.

Although the terms of the housing 1, the inner container 2, the heater 3, the lid 4, the cavity 5, the partition plate 6, the air duct 7, the solenoid valve 8, the groove 9, the slider 10, the tightening spring 11, the through hole 12, the first air guide hole 13, the second air guide hole 14, the support rod 15, the pressure plate 16, the threaded rod 17, the scraping plate 18, the exhaust cavity 19, the memory spring 20, the piston plate 21, the exhaust pipe 22, the sliding cavity 23, the sliding plate 24, the connecting rod 25, the return spring 26, the electromagnet 27, the conductive block 28, the permanent magnet block 29, the power connection block 30, etc. are used more frequently, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.

Claims

1. An anti-overflow and anti-steam scald electric cooker comprises a shell (1), an inner container (2) and a cooker cover (4), it is characterized in that the bottom of the inner container (2) is abutted against a heater (3) fixed on the bottom wall of the shell (1), the shell (1) is rotationally connected with the pot cover (4) through a pin shaft, a cavity (5) is arranged in the pot cover (4), a baffle plate (6) is connected in the cavity (5) in a sealing and sliding way, the top of one end of the cavity (5) is connected with an air duct (7), one end of the air duct (7) far away from the cavity (5) is communicated with the inner container (2), an exhaust cavity (19) is arranged at one end of the pot cover (4) far away from the air duct (7), the exhaust cavity (19) is connected with the top of the cavity (5) through a communicating pipe, the top cavity wall of the exhaust cavity (19) is connected with an exhaust pipe (22) communicated with the outside;

the bottom of the cavity (5) is provided with a plurality of grooves (9), the bottom of each groove (9) is provided with a through hole (12) communicated with the inner container (2), each groove (9) is internally and hermetically connected with a sliding block (10) in a sliding manner, a tightening spring (11) is arranged in each groove (9), two ends of the tightening spring (11) are fixedly connected with the bottom surface of the sliding block (10) and the bottom of the groove (9) respectively, an L-shaped first air guide hole (13) is formed in each sliding block (10), and a plurality of L-shaped second air guide holes (14) are formed in the bottom of the cavity (5) and are connected with the side wall of the groove (9) respectively;

a sliding cavity (23) is formed in the top of the pot cover (4), a sliding plate (24) is connected in the sliding cavity (23), a return spring (26) is fixedly connected to the upper end face of the sliding plate (24), one end, far away from the sliding plate (24), of the return spring (26) is fixedly connected with the top cavity wall of the sliding cavity (23), a vertical connecting rod (25) is welded to the bottom of the sliding plate (24), the lower end of the connecting rod (25) penetrates through the bottom cavity wall of the sliding cavity (23) and extends into the cavity (5), an electromagnet (27) is fixedly connected to one end, located in the cavity (5), of the connecting rod (25), two ends of the electromagnet (27) are connected with a conductive block (28), a permanent magnet block (29) is embedded in the upper end face of the partition plate (6), and a power-on block (30) is embedded in each of two sides, located in the permanent magnet block (29), of the partition plate, the gas guide tube (7) is provided with an electromagnetic valve (8), and the electromagnetic valve (8) is electrically connected with the two power connection blocks (30) and the power supply of the electric cooker through leads.

2. The electric cooker preventing overflow and steam scald as claimed in claim 1, characterized in that the bottom of said exhaust cavity (19) is fixedly connected with a memory spring (20), and the top of said memory spring (20) is fixedly connected with a piston plate (21).

3. The electric cooker capable of preventing overflow and steam scald as claimed in claim 1, characterized in that two vertical support rods (15) are welded on the lower end face of the partition plate (6), a pressing plate (16) is welded on the lower end of each support rod (15), a threaded rod (17) is rotatably connected to the center of the bottom of the cavity (5) through a bearing, the threaded rod (17) is in threaded connection with the pressing plate (16), and the lower end of the threaded rod (17) extends into the inner container (2) and is fixedly connected with a scraper (18).