KR20040108124A - An Opening and Shutting Structure of a Cover for Electric Rice Cooker - Google Patents

Abstract

PURPOSE: Structure for opening and shutting a lid of an electric pressure rice cooker is provided to open and close a lid with one-touch operation by preparing an opening and shutting button in the lid, to safely open and close the lid by preparing a safety pin, and to minimize the storage space by preparing the opening and shutting button in the upper portion of an outer lid. CONSTITUTION: A pressure lid(100) of an electric pressure rice cooker is composed of many guide parts(110), a rotating piece(120) rotatably connected with the inside of the guide parts, many fixing members(130) movably prepared along the guide parts, a hinge button(140a) rotatably connected with the guide parts and the fixing members, a hinge server(140b), a hinge sensor(140c), an opening and shutting button(150) prepared at one side of the hinge button to open and close an outer lid by one-touch operation, a button member(150') prepared at one side of the opening and shutting button, and a locking member(160) connected with a body in the front portion of the pressure cooker.

Description

An Opening and Shutting Structure of a Cover for Electric Rice Cooker}

The present invention relates to an electric pressure rice cooker lid, and more specifically, to provide an opening and closing button on the pressure lid to enable the opening and closing operation of the lid in a one-touch (One-Touch) method as well as having a safety pin It relates to the opening and closing structure of the electric pressure thermostat rice cooker lid to open and close the lid.

In general, the electric thermal pressure cooker has a structure to open or close the lid formed on the top of the cooker to put the food in the inner pot to cook or to take out the food of the inner pot to the outside. The electric thermal pressure cooker, when cooking, so as to generate a very high heat and pressure inside the inner pot should be firmly coupled to the inner pot and the lid. To this end, the conventional electric thermal pressure cooker is configured to be coupled to each other by forming a plurality of locking projections and locking grooves on the inner periphery of the inner pot and the lid. The opening and closing operation of the lid is made by rotating the lid through a rotation knob as a function of attaching and detaching a plurality of catching protrusions and catching grooves formed on the inner pot and the lid.

For example, according to the opening and closing structure of the electric pressure insulating rice cooker lid according to the prior art, as shown in Figures 1 and 2, a plurality of locking projections 42, 56 on the periphery of the pressure lid 40 and the inner pot 50 ) And engaging grooves 44 and 54 are formed to correspond to each other, the pressure lid 40 is coupled to the rotating plate (not shown) and the fixing bolt 46 is installed to be rotatable in the outer cover 30, One side circumference of the pressure lid 40 is provided with a handle 60 to enable the pressure lid 40 to rotate.

However, according to the opening and closing structure of the electric pressure insulating rice cooker lid according to the prior art, the rotational force during the opening and closing operation of the pressure lid 40 through the fixing bolt 46 by the rotation operation of the handle 60 installed on one side of the lid. As it is transmitted to the rotating plate, unless the handle 60 is rotated in the horizontal direction accurately, the rotating pressure lid 40 is biased to rotate. In this case, the locking protrusions 42 and 56 and the locking grooves 44 and 54 formed in the pressure lid 40 and the inner pot 50 are not accurately engaged, and thus the pressure lid 40 cannot be closed. Due to the severe frictional force in the eccentric portion at the time of opening 40) there was a problem that the pressure lid 40 has to be rotated to give a lot of force.

Then, as described above, when the lid is forcibly rotated when the pressure lid 40 is opened, a gap is generated in a portion of the fixing bolt 46 that couples the rotating plate and the pressure lid 40 to the inner portion of the inner pot. There was a problem in that to discharge the pressure to shorten the life of the pressure cooker.

In addition, the handle 60 is protruded to the outside to give aesthetically unpleasant, there was a problem that takes up a lot of use space during storage.

Accordingly, the present invention has been made in order to solve the problems described above, the purpose is to provide an opening and closing button on the pressure lid to open and close the lid in one-touch (One-Touch) method. .

Another object of the present invention is to provide a safety pin at a predetermined position inside the pressure lid so that the lid can be opened and closed safely.

Still another object of the present invention is to provide an opening and closing button on the upper side of the outer cover so as to minimize the use space during storage.

1 is a perspective view showing a state in which the lid of the electric thermal pressure cooker according to the prior art is opened,

2 is a schematic cross-sectional view taken along the line A-A according to FIG.

Figure 3 is a perspective view showing the structure of the pressure lid according to the present invention,

Figure 4 is a perspective view showing a hinge button provided on the pressure lid according to the present invention,

5 is a perspective view showing a rotating piece provided in the pressure lid according to the present invention,

6 is an exploded perspective view showing the structure of the opening and closing button according to the present invention,

Figure 7 shows the operating state of the opening and closing button according to the present invention, Figure 7a is a schematic perspective view showing a state before the pressing member is pressed, Figure 7b is a pressing member is pressed to form the opening and closing button It is a schematic perspective view which shows the state in which the slide lock was moved.

** Explanation of symbols for main parts of the drawing **

100 ... pressure cover,

110 ...

120 ...

130, fixing member,

140a ... hinge button,

140b ... Hinge Server,

140c ... hinge sensor,

150 ...

160 ... lock member,

170 ... middle ring.

According to the opening and closing structure of the electric thermal pressure cooker lid of the present invention devised in order to solve the above technical problem, the main body is provided with an intermediate ring therein, the pressure lid is coupled to the upper side of the main body so as to be openable and closed. In the electric thermal pressure cooker comprising an outer cover provided with the pressure lid, a plurality of guides formed at predetermined intervals on the periphery of the guide portion, the rotating piece rotatably connected to the inside of the guide portion, A plurality of fixing members provided to be movable at predetermined intervals along the guide portion, a hinge button, a hinge server and a hinge sensor rotatably connected to the guide portion and the fixing member, and one touch on one side of the hinge button ( One-Touch) opening and closing button provided to open and close the outer cover, and provided on one side of the opening and closing button the opening and closing button A button member for enabling operation, a rotation control spring fixed to the first and second spring fasteners and the first and second spring fasteners provided at a predetermined position of the pressure lid, and controlling the rotation of the rotating piece; The front side of the lock member is characterized in that it is provided to be fastened with the main body.

The rotating piece forms a wing piece branched in four directions centering on a fixing hole provided on the inner side, and is provided with a guide piece formed in a circular band shape at the periphery thereof. The first holder fixing hole is formed in the portion where the guide piece and the guide piece, at least one spring fixing groove is formed on one side thereof, the rotation control piece is formed in a predetermined position.

The fixing member is provided with a locking projection protruding to a predetermined width on the lower side, the guide piece is provided in the longitudinal direction on the upper side thereof, the second holder is fixed to the upper side of the guide piece formed in an oval shape in the rotational direction of the rotating piece Balls, characterized in that the fixing hole is formed on the one side of the second holder fixing hole to form an oval in the moving direction of the fixing member.

The hinge button is a first button which is branched in two directions centering on the button support hole provided in the center and is provided in the vertical direction at both ends of the lower end thereof to be fitted into and engaged with the first holder fixing hole of the rotating piece. And a second button holder fitted into the holder and the second holder fixing hole of the fixing member, and a protrusion formed to protrude with an inclined surface forming a predetermined inclination angle on an upper side of the first button holder.

The hinge server is a first server which is branched in two directions centering on a server support hole provided in the center and provided in a vertical direction at both ends of the lower end thereof to be fitted into and engaged with the first holder fixing hole of the rotating piece. And a second server holder fitted to the holder and to the second holder fixing hole of the fixing member.

The hinge sensor has a sensor holder which is branched in two directions centering on a sensor support hole provided at the center thereof and fitted into one side of the second holder fixing hole of the fixing member and engaged with the other side of the rotating piece. A sensor for controlling rotation is provided.

The opening and closing button may include a pin spring fixing jaw formed to protrude to fix the pin spring therein, a first pin spring guide groove having a predetermined width to guide and fix the pin spring, A second pin spring guide groove provided to fix the pin spring at a predetermined distance from the one-pin spring guide groove, and between the first and second pin spring guide grooves and the opposite side of the lock; A body portion having a guide groove, a control member fastening groove penetrating up and down at the front side thereof, a pin spring flow control member fitted to the front of the body portion to regulate the flow of the pin spring, and the lock guide groove It is characterized in that consisting of a slide lock (Slide Lock) coupled to the left and right movement of the pin spring.

The pin spring flow control member is provided with a pin spring fixing groove for fixing the pin spring at a predetermined position on one side, and has a predetermined inclination angle at the other side to guide the flow of the pin spring to the first and second inclined portions. It characterized in that the pin spring rotation guide member having a.

The slide lock is characterized in that it has a pin spring fixing groove for fixing the pin spring while having an inclined surface of a predetermined angle in a predetermined position.

The button member is provided with a button pressing surface for pressing the inclined surface of the hinge button with a predetermined inclination angle behind the lower side thereof, and protruding to form an inclined surface with a predetermined width toward the side at which the opening / closing button is located under one side. It is characterized in that the formed pressing projections.

The rotation control spring is characterized in that the central portion is coupled to the first spring fixture, one end is fixed to the rotation control spring fixing groove of the rotating piece, the other end is fixed to the second spring fixture.

The inner predetermined position of the pressure lid, characterized in that the safety pin which is flowed up and down in accordance with the pressure state inside the main body is provided.

The locking member is provided with a rotating piece formed to be inclined at a predetermined angle with a central portion protruding to the rear side, connected to the pressure lid, and provided with a hinge to rotate the body, and engaged with the main body at a lower portion thereof. It is characterized in that the fastening protrusion is formed to be fastened.

The intermediate ring is characterized in that the pin spring flow control projection is provided at a position corresponding to the pin spring flow control member forming the opening and closing button.

Hereinafter, an embodiment according to the present invention will be described in detail with reference to the accompanying drawings.

Figure 3 is a perspective view showing the structure of the pressure lid according to the present invention, Figure 4 is a perspective view showing a hinge button provided in the pressure lid according to the present invention, Figure 5 is a rotation provided in the pressure lid according to the present invention 6 is an exploded perspective view showing the structure of the opening and closing button according to the present invention, Figure 7 is a view showing the operating state of the opening and closing button according to the present invention, Figure 7a is a pressing member is pressed Figure 7b is a schematic perspective view showing the previous state, Figure 7b is a schematic perspective view showing a state in which the slide lock (slide lock) forming the opening and closing button is pressed by the pressing member is moved.

First, the inner pot and the main body and the outer cover of the technical components by the opening and closing structure of the electric thermal pressure cooker lid of the present invention are the same as in the prior art, the detailed description will be omitted, but, the configuration of the pressure lid coupled to the outer cover Note that there are only differences.

That is, according to the opening and closing structure of the electric thermal pressure cooker lid according to the present invention, the main ring is provided with an intermediate ring 170 therein, and the pressure lid 100 is coupled to the upper side of the main body so as to be openable and closed. In the electric thermal pressure cooker including an outer cover provided, the pressure lid 100 is rotated in the inner side of the guide portion 110 and a plurality of guide parts 110 formed at predetermined intervals on the periphery thereof. Rotating piece 120 that is connected to the possible, a plurality of fixing member 130 which is provided to be movable at a predetermined interval along the guide portion 110, and the guide portion 110 and the fixing member 130 and A hinge button 140a, a hinge server 140b, and a hinge sensor 140c, which are connected to each other so as to be rotatable, and an opening / closing provided to open and close the outer cover in one-touch manner on one side of the hinge button. Button 150, and provided on one side of the opening and closing button 150 Is fixed to the button member 150 ', the first and second spring fixtures 104a and 104b and the first and second spring fixtures 104a and 104b provided at a predetermined position of the pressure lid 100. Rotation control spring 104 is provided to control the rotation of the rotating piece 120, characterized in that the locking member 160 is provided on the front side of the pressure lid 100 to be coupled to the main body. do.

Here, the rotating piece 120 forms a blade piece 122 branched in four directions centering on the fixing hole 120a provided on the inner side thereof, and has a circular band at its periphery. A guide piece 121 formed in a shape is provided, and a first holder fixing hole 123 is formed at a portion where the wing piece 122 and the guide piece 121 are connected, and at least one spring fixing groove on one side thereof. While the 124 is formed, the rotation control piece 125 is formed at a predetermined position. The first holder fixing hole 123 is preferably made of an oval toward the moving direction side of the fixing member 130.

In addition, the fixing member 130, the locking projection 131 protruding to a predetermined width is formed on the lower side, the guide piece 132 is provided in the longitudinal direction on the upper side, the upper portion of the guide piece 132 The second holder fixing hole 133 is provided in the rotational direction of the rotating piece 120 in the side portion and the elliptical in the moving direction of the fixing member 130 on one side of the second holder fixing hole 133 It is characterized in that the fixing hole 120a is formed.

In addition, the hinge button 140a is branched in two directions centering on the button support hole 140a-1 provided at the center thereof, and is provided in the vertical direction at both ends of the lower end of the hinge piece 140a. The first button holder 140a-2, which is fitted into and engaged with the first holder fixing hole 123 of 120, and the second button holder 140a, which is fitted into and engaged with the second holder fixing hole 133 of the fixing member 130. -3) and a protrusion 140a-4 formed to protrude with an inclined surface 140a-4 'forming a predetermined inclination angle on the upper side of the first button holder 140a-2. The inclined surface 140a-4 'of the protrusion 140a-4 constituting the hinge button 140a is pressed by the button pressing surface 150'-2 of the button member 150' which will be described later, and the fixing member 130 will be moved outward. At this time, the rotating piece 120 is rotated by a predetermined angle in the clockwise direction.

The hinge server 140b is branched in two directions centering on the server support hole 140b-1 provided at the center thereof, and is provided in the vertical direction at both ends of the hinge piece 140b. A first server holder 140b-2 fitted into the first holder fixing hole 123 of 120 and a second server holder fitted into the second holder fixing hole 133 of the fixing member 130 140b-3) is provided.

In addition, the hinge sensor 140c is branched in two directions centering on the sensor support hole 140c-1 provided at the center, and the second holder fixing hole 123 of the fixing member 130 is disposed at one side. Sensor holder (140c-2) is fitted to engage with, and the other side is provided with a sensor (140c-3) for controlling the rotation of the rotating piece (120). The sensor 140c-3 is connected to a control unit (not shown) provided in the electric heat pressure cooker and detects whether the rotating piece 120 is rotated, that is, a locked state.

On the other hand, the opening and closing button 150, the pin spring fixing jaw (150a-1) formed to protrude so as to fix the pin spring (150d) on the inside, and predetermined to guide and fix the pin spring (150d) A first pin spring guide groove 150a-2 formed to have a width of the first pin spring guide groove 150a-2 and the first pin spring guide groove 150a-2 at a predetermined distance therebetween The lock guide groove 150a-4 penetrates a predetermined width between and between the second pin spring guide groove 150a-3 and the first and second pin spring guide grooves 150a-2 and 150a-3. ), A body portion 150a provided with a control member fastening groove 150a-5 penetrating upward and downward on the front side thereof, and a flow of the pin spring 150d fitted into the front of the body portion 150a. It is coupled to the pin spring flow control member (150b) and the lock guide groove (150a-4) to adjust the slide lock (S) to adjust the left and right movement of the pin spring (150d) lide lock) 150c.

Here, the pin spring flow control member (150b) is provided with a pin spring fixing groove (150b-1) for fixing the pin spring (150d) at a predetermined position on one side, is formed with a predetermined inclination angle on the other side of the pin spring A pin spring rotation guide member 150b-2 having first and second inclined portions 150b-2 'and 150b-2 "is provided to guide the flow of 150d.

The slide lock 150c includes a pin spring fixing groove 150c-1 for fixing the pin spring 150d while having an inclined surface 150c-2 having a predetermined angle at a predetermined position. do.

In addition, the button member 150 'is provided with a button pressing surface 150'-2 having a predetermined inclination angle behind the lower side thereof and pressing the inclined surface 140a-4' of the hinge button 140a. The pusher 150'-3 is formed to protrude in an inclined surface with a predetermined width toward the side at which the opening / closing button 150 is located. It is preferable that the catch button (not shown) that is exposed to the outside of the electric thermal pressure cooker is detachably mounted on the upper side of the button member 150 '.

As shown in FIGS. 7A and 7B, the inclined surface 150c-of the slide lock 150c constituting the open / close button 150 by the button pressing surface 150'-2 of the button member 150 '. When pressing 2), the slide lock 150c is moved in the opposite direction of the button member 150 'by the constant elastic force of the pin spring 150d. The opening and closing of the lid of the electric thermal pressure cooker is made in the same process.

On the other hand, the rotation control spring 104, the central portion thereof is coupled to the first spring fixture 104a, one end is fixed to the rotation control spring fixing groove 124 of the rotating piece 120, the other end is It is characterized in that the fixed to the second spring fixture (104b).

In addition, the predetermined position on the inner side of the pressure lid 100, characterized in that the safety pin 102 which is flowed and controlled up and down in accordance with the pressure state inside the main body is provided. That is, when the internal pressure of the inner pot (not shown) is excessively high, the inner pot cover (not shown) is pushed upwards and the safety pin 102 protrudes upwards, so that the rotation control piece 125 of the rotating piece 120 Rotation is prevented, and thus the opening of the outer cover is prevented, thereby protecting the user from the risk of pressure ejection.

In addition, the locking member 160, the central portion is formed to protrude to the rear side is provided with a rotating piece 162 formed to be inclined at a predetermined angle, is connected to the pressure lid 100 and the hinge so that the body can rotate ( 164 is provided, and a fastening protrusion 166 is formed to be engaged with the main body at its lower side. The locking member 160 is provided with a return spring (not shown) that is engaged with and fixed to the hinge 164. The outer cover is opened by the rotation piece 162 being pressed by the locking member pressing portion 150'-1 of the button member 150 '.

And, the intermediate ring 170, characterized in that the pin spring flow control protrusion 172 is provided at a position corresponding to the pin spring flow control member 150b constituting the opening and closing button 150.

Hereinafter, the operation according to an embodiment of the present invention in detail.

That is, according to the opening and closing structure of the electric thermal pressure cooker lid according to the present invention, the safety pin 102 provided on the pressure lid 100 is projected upward by the pressure of the inner pot in the cooking state, the rotating piece 120 The safety pin 102 is caught by the rotation control piece 125 provided in the rotation stops. When warming after cooking, the pressure of the inner pot is lowered, and the safety pin 102 is lowered by its own weight. At this time, the safety pin 102 and the rotation control piece 125 are detached to release the button member 150 '. It becomes state to be able to enjoy. When the button member 150 'is pressed, the hinge button 140a is rotated by the pressing protrusion 150'-3 formed on one side, and the hinge server 140b and the hinge sensor 140c are connected to each other by the rotating plate 120 connected to each other. As the force is transmitted to the fixed member 130 is moved to the outside a predetermined width to release the locked state. Then, the rotating piece 162 is pressed by the locking member pressing portion 150'-1 of the button member 150 ', and the outer cover is opened by a return spring (not shown) engaged with the hinge 164.

When the lid of the electric thermal pressure cooker is opened, the pin spring flow control member 150b of the opening and closing button 150 is moved downward by the pin spring 150d. When closing the lid of the electric thermal pressure cooker, the pin spring flow control member 150b is pushed upward by the fixing protrusion 172 of the intermediate ring 170. When the pin spring flow control member 150b is lifted up, the slide lock 150c is pushed in the opposite direction of the button member 150 'by the pin spring 150d. At this time, while the locked state of the button member 150 'and the opening and closing button 150 is released, the hinge button 140a and the locking member 160 are returned to their original state, and the lid is closed.

While the exemplary embodiments of the present invention have been described above by way of example, the scope of the present invention is not limited to such specific embodiments, and those skilled in the art are appropriate within the scope described in the claims of the present invention. It will be possible to change.

As described above, according to the opening and closing structure of the electric thermal pressure cooker lid according to the present invention, the opening and closing button is provided on the pressure lid to have an effect of opening and closing the lid in a one-touch manner. .

Another effect of the present invention is to provide a safety pin at a predetermined position inside the pressure lid so that the lid can be opened and closed safely.

Another effect of the present invention is to provide an opening and closing button on the upper side of the outer cover to minimize the use space during storage.

Claims (14)

In the electric thermal pressure cooker including a main body provided with an intermediate ring 170 therein, and an outer cover which is coupled to the upper side of the main body so as to be openable and closed with a pressure lid 100 therein, The pressure lid 100, a plurality of guide parts 110 formed at predetermined intervals in the peripheral portion, the rotating piece 120 is rotatably connected to the inside of the guide portion 110, the guide A plurality of fixing members 130 which are provided to be movable at a predetermined interval along the portion 110, the hinge button 140a, the hinge server is rotatably connected to the guide portion 110 and the fixing member 130 140b and the hinge sensor (140c), the opening and closing button 150 which is provided to open and close the outer cover in one-touch (One-Touch) on one side of the hinge button, and the opening and closing button 150 The button member 150 'provided at one side, the first and second spring fixtures 104a and 104b and the first and second spring fixtures 104a and 104b provided at a predetermined position of the pressure lid 100, respectively. Is fixed to the rotation control spring 104 for controlling the rotation of the rotating piece 120, and the front side of the pressure lid 100 Opening and closing structure of the electric heat pressure cooker lid, characterized in that it comprises a locking member 160 provided to be fastened with the main body. The method of claim 1, The said rotation piece 120 forms the blade piece 122 which divided | segmented in four directions centering on the fixing hole 120a provided in the inside, and has the circular strip | belt-shaped part in the peripheral part. A guide piece 121 is formed to be provided, the first holder fixing hole 123 is formed in a portion where the wing piece 122 and the guide piece 121 is connected, at least one or more spring fixing groove ( 124 is formed and the opening and closing structure of the electric heat pressure cooker lid, characterized in that the rotation control piece 125 is formed at a predetermined position. The method of claim 1, The fixing member 130 is provided with a locking projection 131 protruding to a predetermined width on the lower side, the guide piece 132 is provided in the longitudinal direction on the upper side, the upper portion of the guide piece 132 The second holder fixing hole 133 is provided to form an oval in the rotational direction of the rotating piece 120, and fixed to form an oval in the moving direction of the fixing member 130 on one side of the second holder fixing hole 133. Opening structure of the electric thermal pressure cooker lid, characterized in that the ball (120a) is formed. The method of claim 1, The hinge button 140a is branched in two directions centering on the button support hole 140a-1 provided at the center, and is provided in the vertical direction at both ends of the lower end of the rotary piece 120. The first button holder 140a-2 that is fitted into and engaged with the first holder fixing hole 123 of the second button holder 140a-3 that is fitted with the second holder fixing hole 133 of the fixing member 130 ) And an insulated pressure cooker lid comprising a protrusion 140a-4 formed to protrude with an inclined surface 140a-4 ′ forming a predetermined inclination angle on the upper side of the first button holder 140a-2. Opening and closing structure. The method of claim 1, The hinge server 140b is branched in two directions centering on the server support hole 140b-1 provided at the center, and is provided in the vertical direction at both ends of the lower end of the rotary piece 120. First server holder 140b-2 that is fitted into and engaged with the first holder fixing hole 123 of the second server holder 140b- which is fitted into and engaged with the second holder fixing hole 133 of the fixing member 130; 3) opening and closing structure of the electric heat pressure cooker lid characterized in that it is provided. The method of claim 1, The hinge sensor 140c is branched in two directions with respect to the sensor support hole 140c-1 provided at the center thereof to the second holder fixing hole 123 of the fixing member 130 at one side. Opening and closing structure of the electric heat pressure cooker lid, characterized in that the sensor holder (140c-2) is fitted and engaged, the sensor (140c-3) for controlling the rotation of the rotating piece 120 is provided on the other side. The method of claim 1, The opening and closing button 150 has a pin spring fixing jaw 150a-1 formed to protrude to fix the pin spring 150d therein, and the pin spring 150d to guide and fix the pin spring 150d. A first pin spring guide groove 150a-2 formed to have a width, and the first pin spring guide groove 150a-2 and the first pin spring guide groove 150a-2 having a predetermined distance to fix the pin spring 150d. Lock guide groove 150a-4 penetrated to a predetermined width between and opposite the two-pin spring guide groove 150a-3 and the first and second pin spring guide grooves 150a-2 and 150a-3. And a body portion 150a provided with a control member fastening groove 150a-5 penetrating upward and downward on the front side thereof, and fitted into the front of the body portion 150a to control the flow of the pin spring 150d. A slide lock for adjusting the left and right movement of the pin spring 150d by being coupled to the pin spring flow control member 150b for adjusting and the lock guide groove 150a-4. Lock) (150c) opening and closing structure of the electric thermal pressure cooker lid, characterized in that consisting of. The method of claim 7, wherein The pin spring flow control member 150b includes a pin spring fixing groove 150b-1 for fixing the pin spring 150d at a predetermined position on one side thereof, and is formed with a predetermined inclination angle on the other side of the pin spring 150d. An electric thermal pressure cooker lid, characterized in that the pin spring rotation guide member 150b-2 having first and second inclined portions 150b-2 'and 150b-2 " Opening and closing structure. The method of claim 7, wherein The slide lock (150c) has an inclined surface (150c-2) of a predetermined angle at a predetermined position while the pin spring fixing groove (150c-1) for fixing the pin spring (150d) is characterized in that the electrical insulation pressure Opening and closing structure of rice cooker lid. The method of claim 1, The button member 150 'is provided with a button pressing surface 150'-2 that pushes the inclined surface 140a-4' of the hinge button 140a with a predetermined inclination angle behind the lower side thereof. Opening and closing structure of the electric heat pressure cooker lid, characterized in that the pressing protrusion (150 '-3) formed to protrude to form a slope with a predetermined width toward the side of the opening and closing button 150 is located. The method of claim 1, The rotation control spring 104, the central portion is coupled to the first spring fixture 104a, one end is fixed to the rotation control spring fixing groove 124 of the rotating piece 120, the other end of the second spring Opening and closing structure of the electric thermal pressure cooker lid, characterized in that fixed to the fixture (104b). The method of claim 1, The opening and closing structure of the electric heat pressure cooker cover, characterized in that the safety pin 102 is provided at the inner predetermined position of the pressure lid 100, the flow pin is controlled up and down in accordance with the pressure state inside the main body. The method of claim 1, The locking member 160, the center portion is formed to protrude to the rear side is provided with a rotating piece 162 formed to be inclined at a predetermined angle, the hinge 164 is connected to the pressure lid 100 and the body can rotate Is provided, the opening and closing structure of the electric heat pressure cooker lid, characterized in that the fastening protrusion 166 is formed to be engaged with the main body at the lower side. The method of claim 1, The intermediate ring 170 of the electric heat pressure cooker lid, characterized in that the pin spring flow control projection 172 is provided at a position corresponding to the pin spring flow control member 150b constituting the opening and closing button 150. Opening and closing structure.