KR100797150B1 - Safety lock/unlock apparatus of cover for rice cooker - Google Patents

Abstract

A safety lock/unlock apparatus of a lid for a pressure rice cooker is provided to prevent a lid from unlocking from a main body when an inner container and a radiating plate are in an unlocking condition by a handle. A safety lock/unlock apparatus of a lid for a pressure rice cooker comprises a main body(100), a radiating plate(220), a cover, and a lock/unlock push button(290). The main body receives an inner container. The radiating plate, which is hinged to the upper part of the main body, heats cooking water to be assembled with the inner container. The cover includes a handle to lock/unlock the radiating plate in the inner container. The lock/unlock push button, which is installed onto the handle, locks/unlocks the lid from the main body and prevents lock/unlock operations by covering the handle when the handle is in a locking condition.

Description

Lid opening and closing safety device of electric pressure thermostat rice cooker {SAFETY LOCK / UNLOCK APPARATUS OF COVER FOR RICE COOKER}

1 is a cross-sectional view showing an electric pressure cooker to which the lid opening and closing safety device of the electric pressure insulating rice cooker according to one embodiment of the present invention.

Figure 2 is a partial cutaway perspective view showing the inside of the lid is applied to the lid opening and closing safety device of the electric pressure thermostat rice cooker according to an embodiment of the present invention.

3 to 4 are plan views showing a locking / unlocking state of a handle according to an embodiment of the present invention.

5 to 6 are cross-sectional views showing the locking / un-locking of the lid according to an embodiment of the present invention.

<Description of Symbols for Major Parts of Drawings>

100: rice cooker 110: main body

112: operation unit 113: locking projection

120: inner cylinder 201: return spring

200: lid 210: cover housing

211: lead ring 212: lead cover

220: heat sink 230: link plate

240: link 250: handle assembly

251: handle 251a: hook hook

251b: cover part 252: arm

252a: first slot 252b: stopper portion

260: steam discharge device 270: button hole

280: rotating member 281: locking projection

282: head 283: end

284: spring 290: opening and closing push button

The present invention relates to a lid opening and closing safety device of the electric pressure insulation rice cooker, and more specifically, to the cooking of the electric pressure insulation rice cooker to prevent the lid from being unlocked in the body and the heat sink is locked by the handle for cooking. It relates to a lid opening and closing safety device.

In general, the electric pressure cooker is a kitchen cooking equipment for cooking by heating a closed pressure vessel (inner container or inner pot) containing cooking water by an electric heating means.

In general, the electric pressure cooker may be divided into a main body, an inner tube inserted into the main body and containing cooking water (cooking water), and a lid (assembly) installed to be opened and closed on the main body.

The main body is provided with a control unit for controlling a series of operations such as cooking, heat keeping, steam discharge, a display unit for displaying an operating state, and an operation unit for a user to select a cooking mode or a heat keeping mode.

The inside of the main body is provided with a heating means such as an induction heater (IH) for heating the inner cylinder. The lid is provided on the upper portion of the inner cylinder when cooking has a heat sink that serves as a lid of the inner cylinder to seal the inside of the inner cylinder.

In the electric pressure cooker, the inner cylinder containing cooking water is heated in a sealed state with a heat sink, so the inside of the inner cylinder is always kept at a high temperature and high pressure during cooking.

Therefore, the electric pressure cooker is provided with a steam discharge device and safety valves to maintain the inside of the inner cylinder at a proper pressure during cooking, and to discharge the steam remaining in the inner cylinder after the completion of cooking to the outside of the main body to enable safe cooking. .

In the case of the conventional electric pressure cooker to cover the lid to the main body for cooking to lock the inner tube accommodated in the main body, the heat sink installed on the lid by locking the handle installed on the lid and then proceeded to cooking. That is, the cooking mode can be performed in a state where the inner cylinder and the heat sink are locked by the handle.

On the other hand, in order to open and close the lid from the main body is provided with an opening and closing button is provided. The opening and closing button is configured separately from the handle for locking / un-locking the inner cylinder and the heat sink for the user to easily press.

By the way, while the handle is locked to the inner cylinder and the heat sink, the opening and closing button can be easily pressed by the user, the lid can be easily unlocked from the body during cooking. Therefore, when the lid is opened during cooking, even when the inner cylinder and the heating plate are locked, there is a problem that an internal pressure and explosion can not be sustained or an error may occur during cooking.

The present invention has been made in view of the above necessity, to provide a lid opening and closing safety device of the electric pressure thermal cooker which prevents the lid from being unlocked in the main body while the inner cylinder and the heat sink are locked by the handle for cooking. The purpose is.

Lid opening and closing safety device of the electric pressure thermostat rice cooker of the present invention for achieving the above object; A cover coupled to an upper portion of the main body, the cover having a heat dissipation plate coupled to the inner cylinder to heat cooking water therein, and a handle to lock / unlock the heat dissipation plate to the inner cylinder; It is installed in contact with the handle to unlock the lid in the body, and when the handle is in a locked state includes an opening and closing push button that is covered by the handle to prevent the un-locking operation.

Here, the handle preferably includes a cover portion extended to one side to cover the opening and closing push button in a state in which the heat sink is locked to the inner cylinder.

And the handle includes an arm for locking / unlocking the heat sink to the inner cylinder, and the arm unlocks the unlocking operation of the open / close push button with the handle locking the heat sink to the inner cylinder. It is preferable to include the stopper part which prevents in a direction.

In addition, the main body is provided with a locking projection, the opening and closing push button is provided on the lid to lock the locking projections of the main body, the rotation is separated from the locking projection by the unlocking operation of the opening and closing push button is unlocked It is preferable to include a member.

Here, the pivot member is provided with a hinge portion fixed to the lid so that the pivot member is rotatable, and provided at one side of the hinge portion, and connected to the opening / closing push button, and provided at the other end of the hinge portion, It is preferable to include a head for locking / un-locking the cap and a spring provided on the hinge portion, the spring to provide elasticity in the direction of locking the locking member to the locking projection.

And it is preferable that the stopper portion supports the end of the rotating member pressed by the opening and closing push button from the bottom.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In the following description of the present invention, the terms defined are defined in consideration of functions in the present invention, and should not be understood as a meaning of limiting the technical components of the present invention.

1 is a cross-sectional view showing an electric pressure cooker to which the lid opening and closing safety device of the electric pressure heat cooker according to the temporary embodiment of the present invention is applied. And Figure 2 is a partial cutaway perspective view showing the inside of the lid is applied to the lid opening and closing safety device of the electric pressure thermal cooker according to an embodiment of the present invention.

3 to 4 are plan views showing a locking / unlocking state of a handle according to an embodiment of the present invention, and FIGS. 5 to 6 are locking / unlocking of a lid according to an embodiment of the present invention. It is a sectional view.

Referring to Figures 1 and 6, as shown in Figures 1 to 2, the lid opening and closing safety device of the electric pressure thermal cooker of the present invention is installed in the electric pressure cooker (100). Here, the electric pressure cooker 100 is installed in the main body 110, the inner container 120 is accommodated in the main body 110 and accommodated in the main body 110 and heated for a predetermined time, and the main body 110 to open and close. The lid 200 and the lid 200 includes an opening and closing push button 290 to open and close the main body 110.

The inside of the main body 110 is provided with a heating means such as IH for cooking by heating the inner cylinder 120, the outer surface of the main body 110, the operation unit for cooking cooking, such as cooking mode or warming mode ( 112 is provided.

The lid 200 is rotatably coupled to the main body 110 in a hinge 111 structure, and is elastically supported by the return spring 201.

Wherein the lid 200 is coupled to the cover housing 210, the cover housing 210, the heat dissipation plate 220, the pressure packing 224 is fitted to the outer lower surface, and rotatable on the top of the heat dissipation plate 220 It is provided with a link plate 230 and a link 240 to be installed. The cover housing 210 is further divided into a lead ring 211 and a cover lead 212.

The lead ring 211 is positioned inside the lid 200 to reinforce the rigidity of the lid 200 itself, and serves as a mounting plate for mounting other components. And the cover lead 212 is located at the outermost of the lid 200 serves to cover the entire upper surface of the lid 200.

More precisely, a heat sink 220 capable of opening and closing the inner cylinder 120 accommodated in the main body 110 is coupled to the lower portion of the lead ring 211. The heat dissipation plate 220 serves as a cover of the inner cylinder 120, and is detachably coupled to the cover housing 210.

A predetermined space is provided between the lead ring 211 and the heat sink 220, and the link plate 230, the link 240, and the vapor discharge member 260 are provided in the space.

The link plate 230 is formed of a structure that is rotated on the upper surface of the heat sink 220, in order to enable the rotation of the link plate 230, a plurality of rotation guide slots 231 on the link plate 230 ) Is formed, and a plurality of rotation guide protrusions 221 are formed on the upper surface of the heat dissipation plate 220 so as to be inserted into the rotation guide slot 231.

A link 240 for selectively locking the inner cylinder 120 and the heat sink 220 by the rotation of the link plate 230 is provided between the link plate 230 and the heat sink 220.

The link 240 linearly reciprocates in a radial direction about the center of the heat sink 220. The link 240 may be installed on an upper surface of the link plate 230 according to a design change.

The link 240 has a structure capable of selectively locking the inner cylinder 120 while linearly reciprocating when the link plate 230 rotates.

Looking at the structure of the link 240, the hook portion 241 of the "C" shape is formed on one side of the link 240, the limit slot (Limit Slot) 242 on the other side of the link 240 The cam guide protrusion 243 is formed in the middle.

When the inner cylinder 120 is locked, the upper end protrusion 120a of the inner cylinder 120 and the end 283 of the heat sink 220 are fitted into the hook portion 241.

Corresponding to the structure of the link 240, a limiting protrusion 222 is formed on the upper surface of the heat sink 220 to be fitted to the limiting slot 242, the link plate so that the cam guide protrusion 243 is fitted. The cam guide slot 232 is formed at 230.

The upper surface of the heat sink 220 is formed with a guide rail 223 for guiding the linear reciprocation of the link 240, it is preferable to smooth the linear reciprocation of the link 240.

The cover housing 210 has a handle assembly 250 that locks / unlocks the inner cylinder 120 to the heat sink 220. Looking at the structure of the handle assembly 250, the handle 251 is fitted into the mounting groove 212a formed in the cover lead 212 so as to rotate and lift.

And the lower portion of the handle 251 is connected to the link plate 230 and the arm 252 for rotating the link plate 230 while rotating by the handle 251 is connected. In addition, a compression spring 253 is interposed between the handle 251 and the arm 252.

The handle 251 is guided by a guide piece 212b formed on the cover lid 212, and a locking hook 251a that is caught by a lower end of the guide piece 212b is attached to a lower end of the handle 251. Formed.

In the fastening structure of the arm 252 and the handle 251, when the handle 251 is elastically pressed up and down by the compression spring 253, the arm 252 does not interlock with the handle When 251 is rotated is a structure that rotates in conjunction with the handle 251.

When the user turns the handle 251 as shown in FIGS. 3 to 4 to lock / unlock the inner cylinder 120, the arm 252 connected with the handle 251 is rotated, and the arm 252 is rotated. Rotation of the link plate 230 is configured to be rotated.

In order to interlock the handle 251, the arm 252, and the link plate 230, a first slot 252a is formed at one side of the arm 252, and the first slot 252a is formed. A first protrusion 233 is formed on the link plate 230 so as to be inserted into the link plate 230.

On the other hand, the lid 200 is provided with a button hole 270 as shown in Figures 5 to 6, the button hole 270 has an opening and closing push button 290 for opening and closing the entire lid 200 up and down It is configured to be pressed by.

In addition, a locking protrusion 113 is formed at the main body 110 side, and a rotation member 280 is rotatably installed around the hinge portion 281 in the cover housing 210 of the lid 200. .

Here, the rotating member 280 is centered on the hinge portion 281 and the hinge portion 281 to be rotated by pressing the end 283, the end 283 pressed by the opening and closing push button 290. And a head 282 formed on the opposite side of the end 283.

The head 282 of the rotating member 280 is caught by the locking protrusion 113 and the end 283 of the rotating member 280 elastically contacts the opening / closing push button 290 by a spring 284. It is.

Here, the opening and closing push button 290 is provided to be covered by the handle 251. Accordingly, the handle 251 has a cover portion 251b extending from one side thereof, and the opening / closing push button 290 is provided under the cover portion 251b so as to be covered by the cover portion 251b.

In this case, the opening / closing push button 290 forms a button hole 270 under the cover part 251 b at the position where the handle 251 locks the heat sink 220 and the inner cylinder 120, and thus the button hole 270. Install the opening and closing push button 290 in.

Accordingly, the opening / closing push button 290 may operate the heat sink 220 and the inner cylinder 120 only in the unlocked state when the handle 251 is in the locked state. 290 is covered and the state is prevented from being pressed.

At this time, the opening and closing push button 290 in the state (locked state) located under the cover portion 251b of the handle 251 by using a separate tool or by using a gap between the handle 251 and the open / close button 113. The stopper part 252b is provided in the arm 252 to which the handle 251 and the rotation are interlocked so as to prevent the pressing operation even when forcibly pressed.

Here, the stopper part 252b extends from the first slot 252a, and the first slot 252a may simultaneously perform the function of the stopper part 252b without extending the stopper part 252b. Therefore, the lid 200 is arbitrarily prevented from being opened by the opening / closing pushbutton 113 due to mischief of the child or carelessness of the user.

On the contrary, when the handle 251 of the handle assembly 250 is rotated and positioned in an unlocked state, the handle 251 does not cover the opening / closing pushbutton 113 as well as the arm 252. Since the stopper part 252d of the stopper part 252d does not block the rotation member 280, the opening and closing pushbutton 113 may be pressed.

Referring to Figures 1 to 6 the operation of the electric pressure cooker according to an embodiment of the present invention.

In order to cook, first, the cooking water is contained in the inner cylinder 120, the inner cylinder 120 is inserted into the main body 110, and then the lid 200 is closed. At this time, the head 282 of the rotation member 280 is elastically caught by the locking protrusion 113 by the return spring 201 so that the lid 200 is locked to the main body 110.

In this state, the handle 251 of the handle assembly 250 is turned in the locking direction (clockwise) as shown in FIG. Here, the arm 252 coupled to the lower portion of the handle 251 at the moment of turning the handle 251 is also rotated in conjunction. The cover part 251b provided on the handle 251 with the rotation of the handle 251 covers the opening / closing push button 290. Therefore, the opening and closing push button 290 can not be pressed.

When the arm 252 rotates, since the first protrusion 233 is inserted into the first slot 252a, the link plate 230 rotates in the locking direction (clockwise), and the cam guide slot The cam guide protrusion 243 flows along 232 and is linearly reciprocated by the guide rail 250a.

Thus, the link 240 locks the inner cylinder 120. At the same time as the inner cylinder 120 is locked, the inside of the inner cylinder 120 is sealed by the pressure packing 224, and as shown in FIG. 5, the end 115c of the pivot member 280 is lowered from the arm 252. Supported by the stopper 252b, the rotation of the rotation member 280 is prevented.

Thereafter, when cooking is performed, when cooking is completed and the steam of the inner cylinder 120 is discharged and dropped to the reference pressure, and the inner cylinder 120 is to be taken out of the main body 110, the handle of the handle assembly 250 ( 251 is turned in the original un-locking (counterclockwise) direction as shown in FIG. Therefore, the cover part 251b of the handle 251 is in a state capable of pressing the opening / closing push button 290 away from the opening / closing push button 290.

At this time, the arm 252 connected to the lower portion of the handle 251 is also rotated together, the link plate 230 is rotated by the arm 252. At this time, the stopper portion 252b is displaced from the position of supporting the end 115c of the rotation member 280 as shown in FIG. 6 by the rotation of the arm 252.

When the link plate 230 rotates, the link 240 unlocks the guide inner cylinder 120 while linearly reciprocating by the guide rail 243a.

When the opening and closing push button 290 is pressed in this state, the head 282 is released from the locking protrusion 113 while the rotating member 280 is pivotally rotated about the hinge portion 115a, and the user returns the spring. The lid 200 may be opened by using the elastic restoring force of the 201.

As described above, the opening and closing push button of the handle cannot be operated, and even when the push button is forcibly operated, it is supported by the arm of the handle to prevent the operation, thereby preventing the unlocking of the opening and closing push button. Lid opening and closing safety device of the electric pressure thermal cooker of the present invention to prevent the un-locking of the opening and closing push button that can be generated during cooking to prevent safety accidents and cooking errors during cooking.

Claims (6)

A main body accommodating the inner cylinder; A cover coupled to an upper portion of the main body, the cover having a heat dissipation plate coupled to the inner cylinder to heat cooking water therein, and a handle to lock / unlock the heat dissipation plate to the inner cylinder; It is installed in contact with the handle to unlock the lid in the main body, when the handle is in a locked state electric pressure insulating, characterized in that it comprises an opening and closing push button that is covered by the handle to prevent the un-locking operation Rice cooker lid open and close safety device. The method of claim 1, The handle is a lid opening and closing safety device of the electric pressure thermal cooker, characterized in that it comprises a cover portion extended to one side to cover the opening and closing push button in the state that the heat sink is locked to the inner cylinder. The method of claim 1, The handle includes an arm for locking / unlocking the heat sink to the inner cylinder, The arm includes a stopper portion for preventing the unlocking of the opening and closing push button in the un-locking operation direction while the handle locks the heat sink to the inner cylinder. Device. According to claim 1, The main body is provided with a locking projection, The opening and closing push button is provided on the lid and locked to the locking projection of the main body, the electrical pressure, characterized in that it comprises a rotation member which is separated from the locking projection by the unlocking operation of the opening and closing push button to be unlocked Lid opening and closing safety device of a warm rice cooker. The method of claim 4, wherein the rotating member A hinge part to which the pivot member is rotatably fixed to the lid; An end provided at one side of the hinge part and connected to the opening / closing push button; A head which is provided on the other side of the hinge part and locks / un-locks the lid to the locking projection; Cap opening and closing device provided in the hinge portion, characterized in that it comprises a spring to provide elasticity in the direction of locking the locking member to the locking projection. The method of claim 3, The stopper part lid opening and closing safety device of the electric pressure thermal cooker, characterized in that for supporting the end of the rotating member pressed by the opening and closing push button from the bottom.

Images