KR20040040187A - Oven locking apparatus for electrical pressure cooker - Google Patents

Abstract

PURPOSE: A locking apparatus for a oven of an electric rice pot is provided to prevent interruption when an oven cover is locked and unlocked by constricting the over cover and a part of the oven and to lock and unlock with small force by minimizing movement of a locker. CONSTITUTION: An upper portion of an oven(50) is open and has a hanging portion. An oven cover(60) covers an open portion of the oven. An operating handle(70) is operated to lock or unlock the oven cover to the oven. Locking devices restricts or releases the oven cover and the oven each other, moving from the hanging portion of the oven and the oven cover radially with an operation of the operating handle. A converting device of movement converts rotary movement of the operating handle into rectilinear movement to transmit the locking device. Thereby, interruption is minimized when the oven cover is locked or unlocked by locking the oven over and a part of the oven.

Description

Oven lock of electric pressure cooker {OVEN LOCKING APPARATUS FOR ELECTRICAL PRESSURE COOKER}

The present invention relates to an electric pressure cooker, and more particularly, to an oven locking device of the electric pressure cooker to facilitate the locking operation and release operation in a state where the oven cover does not interfere with the oven.

In general, the electric pressure cooker to perform the cooking operation using the electricity as a heating source, to maintain the inside of the oven at a high pressure to achieve a cooking process quickly by raising the heating temperature at a normal pressure, as shown in Figure 1 10, a main body case 12 on which the oven 10 is seated, a lid 14 for opening and closing the main body case 12, and an electric heating device 16 for heating the oven 10. And a vapor discharge device for regulating the pressure in the oven 10.

In this electric pressure cooker, the cooking operation is performed by the oven 10 is heated by the electric heating device 16, in the cooking process to keep the oven 10 is closed, the steam discharge device is closed. When the rice is boiled due to steam generation the pressure inside the oven 10 is higher than the normal air pressure.

In addition, as the pressure increases, the temperature of the rice also rises to a temperature higher than the boiling point (100 ° C.) at normal pressure, so the rice grains ripen quickly. When the cooking process is finished, the steaming process for maintaining the pressure in the oven 10 is maintained for a predetermined time while the heating by the electric heating device 16 is stopped, and after the steaming process is finished, By the operation, the steam inside the oven 10 is discharged to the outside, and the insulation process is performed in which the oven 10 is weakly heated to a constant temperature in a state where the pressure is lowered.

On the other hand, such an electric pressure cooker is provided with an oven lock device to maintain the airtightness of the oven 10, the oven lock device and the operation handle 20 is rotatably mounted on the lid 14, the operation Locking ring 22 coupled to the handle 20 and the connecting rod 22 around the oven cover 30 to lock or release the oven cover 30 to the oven 10. It consists of 32.

Here, as shown in FIG. 2, a plurality of locking pieces 32a are formed in the locking ring 32, and a release part 10b into which the locking pieces 32a are inserted or caught in the flange portion of the oven 10. ) And the engaging portion 10a is formed.

In the conventional oven locking device of the electric pressure cooker, when the operation handle 20 is rotated to one side, the connecting rod 22 bound to the operation handle 20 is rotated, by the connecting rod 22 The locking ring 32 also rotates around the oven cover 30 by the rotation angle of the connecting rod 22. At this time, the oven cover 30 is constrained to the oven 10 by the locking ring 32 to seal the oven 10 or release from the oven 10 according to the rotational position of the locking ring 32. It becomes the state which can open freely.

That is, when the locking piece 32a of the locking ring 32 coincides with the release part 10b of the oven 10, the opening of the oven cover 30 is freed and the locking piece 32a is locked. When the state is caught in the portion (10a), the oven cover 30 is in close contact with the oven 10 by the locking ring 32 it is possible to maintain the sealed state inside the oven (10).

However, since the oven lock device of the prior art as described above is configured so that the lock ring 32 is locked and released while rotating the entire area of the oven cover 30, the oven cover 30 is deformed by heat. If this occurs, interference occurs during the rotation of the lock ring 32, there is a problem that the locking and unlocking operation of the oven 10 is not performed smoothly.

In addition, the oven lock device of the prior art as described above because the operation handle 20, the connecting rod 22, the lock ring 32 is connected to each other at the same time while the lock and release operation of the oven cover 30 is made. When the user operates the operation handle 20 to lock or release the oven cover, a lot of force is required, and there is also a problem that the ease of use of the rice cooker falls.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and is configured so that only part of the oven cover and the oven are constrained by the locker so that interference does not occur during the locking and unlocking operation of the oven cover, and also by the locker by the operation handle It is an object of the present invention to provide an oven locking device of an electric pressure cooker which enables easy locking and releasing operation with a small force by minimizing the movement of the.

1 is a longitudinal sectional view showing an electric pressure cooker having an oven lock of the prior art,

2 is a perspective view showing a conventional oven lock device;

Figure 3 is an exploded perspective view showing an oven locking device of the electric pressure cooker according to an embodiment of the present invention,

4 is a cross-sectional view taken along line A-A of FIG. 3 showing an operation handle according to the present invention;

5 is a plan view and an enlarged view of an essential part of the oven locking device of the electric pressure cooker according to an embodiment of the present invention;

6a, 6b, 6c are operational state diagrams of one embodiment according to the invention,

7 is an exploded perspective view showing an oven locking device of the electric pressure cooker according to another embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

50: oven 53: flange portion

60: oven cover 61: flange portion

63: protrusion 63b: stopper

64, 65, 66: guide 70: operation handle

71: hole 73, 73 ': sliding pin

81, 85: rocker 82, 86: rod

82a, 86a: sliding groove 83, 87: locking portion

The oven lock device of the electric pressure cooker according to the present invention for realizing the above object, the upper portion is open, the oven having a locking portion in the open upper portion; An oven cover adapted to cover the open portion of the oven; An operation handle operable to lock the oven cover in or out of the oven; A plurality of locking means for restraining or releasing the oven cover and the oven from each other by linearly moving radially from the engaging portion of the oven and the outer circumference of the oven cover according to the operation of the operation handle; It characterized in that it comprises a motion converting means for converting the rotational movement of the operation handle to a linear movement to transfer to the locking means.

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

3 to 5 is a view showing the oven lock device of the electric pressure cooker according to an embodiment of the present invention, Figure 3 is an exploded perspective view, Figure 4 is a cross-sectional view of the AA line direction of Figure 3 showing the operation handle, 5 is a plan view and an enlarged view of an essential part of the oven cover.

Referring to FIG. 3, the oven 50 includes a container-shaped body portion 51 having an open upper portion, and a flange portion 53 formed to protrude in a ring shape at an upper end of the body portion 51. In addition, the oven cover 60 is formed in a disc shape so as to cover the open part of the body part 51, and the flange part 61 is formed at a circumferential part corresponding to the flange part 53 of the oven 50. The flange portion is formed relatively thicker than the thickness of the other portion.

Here, the flange portion 53 of the oven 50 is not formed in a concave-convex structure as in the prior art, it is formed to protrude in a simple circular structure.

An operation handle 70 is provided to operate the oven cover 60 to lock or release the oven 50, and the operation handle 70 is hingedly connected to a main body case (not shown) of the rice cooker. Part is exposed to the top of the lid to open and close the cooker.

Here, the manipulation handle 70 has a cylindrical structure in which a hole 71 penetrates vertically in a central portion thereof, as shown in FIG. 4, and a protrusion 63 having a lower end thereof formed in the oven cover 60. ) And assembled to rotate. In particular, a pair of sliding pins 73 and 73 'protruding downward is formed at the lower end of the manipulation handle 70.

The hole 71 formed in the manipulation handle 70 may be used as a steam outlet according to design conditions of the rice cooker.

The rockers 81 and 85 that restrain the oven 50 and the oven cover 60 in accordance with the operation of the operation handle 70 will be described.

The rockers 81 and 85 are linearly moved radially outward from the flange portions 53 and 61 of the oven 50 and the oven cover 60 in accordance with the rotation operation of the operation handle 70. It is configured to restrain or release the cover 60 and the oven 50 from each other.

That is, the rockers 81 and 85 are two rod portions 82 and 86 extending from both the lower side of the operation handle 70 to the outer circumferential surface of the oven cover 60 and the rod portions 82 and 86. At each end of the oven cover 60, respectively, connected in both circumferential directions, the oven 50 is composed of locking portions 83 and 87 for restraining or releasing the flange portions of the oven cover 60.

Here, the rods 82 and 86 are formed with sliding grooves 82a and 86a into which the sliding pins 73 and 73 'of the manipulation handle 70 are inserted, respectively, the sliding grooves 82a and 86a. Has an open structure in a direction facing each other. The rods 82 and 86 as described above may have different lengths depending on the position of the manipulation handle 70.

In addition, the locking portions 83 and 87 may have a cross-sectional shape of a 'c' shape, and the flange portion 53 and the oven of the oven 50 may be closed in a state in which the oven cover 60 is closed on the oven 50. By moving the flange portion 61 of the cover 60 to be inserted therein, the oven 50 and the oven cover 60 may be configured to restrain each other so that the oven cover 60 is locked without being opened.

Therefore, the rockers 81 and 85 serve to restrain or release the oven 50 and the oven cover 60 while moving radially from both sides of the oven cover 60 according to the operation of the operation handle 70. Will be

On the other hand, the flange portion 53 of the oven 50 serves as a locking portion that the locking portions 83 and 87 of the lockers 81 and 85 are engaged, and the locking portion and the release portion of the uneven shape are formed as in the prior art. Rather, it is formed in a ring shape having a simple circular structure.

In addition, the oven cover 60 is a rotation center of the manipulation handle 70, and a protrusion 63 is formed to support the rotational movement of the manipulation handle 70, and the protrusion 63 is the manipulation handle ( A hole 63a communicating with the hole 71 of 70 may be formed.

In addition, guides 64, 65, and 66 are formed in the oven cover 60 such that the rods 82 and 86 of the rockers 81 and 85 move linearly. The guides 64, 65, and 66 have a groove-shaped guide portion 64a protruding in a block shape on the upper surface of the oven cover 60, and the rods 82 and 86 inserted into the upper end thereof. .

In this embodiment, as shown in FIG. 5, a first guide 64 having two guide parts to guide two rod parts 82 and 86 in the vicinity of the manipulation handle 70, and the first guide ( The second and third guides 65 and 66 are formed on both sides of the 64 and positioned at predetermined distances to guide the rods 82 and 86, respectively.

In addition, a stopper 63b protruding from the protrusion 63 of the oven cover 60 in the same direction as the lengthwise direction of the rods 82 and 86 is formed. The stopper 63b restricts the rotation of the sliding pins 73 and 73 'when the operation handle 70 rotates to determine the rotational operating range of the operation handle 70.

Referring to Figure 6a, 6b, 6c operation of the oven lock device of the electric pressure cooker according to an embodiment of the present invention configured as described above are as follows.

6A is a detailed view of the main part showing the locked state of the oven 50 and the oven cover 60, with the operation handle 70 fully rotated in the clockwise direction. 4, the flange portions of the oven 50 and the oven cover 60 in a state where the locking portions 82 and 86 of the lockers 81 and 85 are in close contact with the oven 50 and the oven cover 60. By restraining the upper and lower portions of the 53 and 61 portions, the oven cover 60 is maintained without being opened from the oven 50.

In this state, as shown in FIG. 6B, when the operation handle 70 is rotated counterclockwise, the sliding pins 73 and 73 ′ of the operation handle 70 move through the sliding grooves 82a and 86a. Will move (82, 86) in opposite directions. At this time, the locking portions 82 and 86 of the rockers 81 and 85 linearly move away from the circumference of the oven 50 and the oven cover 60 in the radial direction. Of course, even at this time, since the locking portions 82 and 86 of the lockers 81 and 85 are not completely removed from the flange portions 53 and 61 of the oven 50 and the oven cover 60, the oven 50 It is not possible to open the oven cover 60 from).

In such a state, as shown in FIG. 6C, when the operation handle 70 is further rotated further in the counterclockwise direction, the locking portions 82 and 86 of the rockers 81 and 85 are operated according to the operation of the operation handle 70. Opening and closing operation of the oven cover 60 from the oven 50 is freed by radially deviating from the flange portions of the oven 50 and the oven cover 60. Therefore, when the lid of the rice cooker is opened at this time, the oven cover 60 is opened from the oven 50 to open the cooker.

In the above, the process of opening in the locked state of the oven cover has been described, but the process of switching to the locked state in the open state of the cooker is performed in the reverse order of the operation.

The oven lock device according to the present invention is a state in which the guides (64, 65, 66) for guiding the movement of the rods (82, 86) of the lockers (81, 85) two pairs separated by a predetermined interval Guides the linear movement of each of the rods 82, 86 in the locker 81, 85 or guides 64, 65, 66, even if a slight tolerance occurs, Minimized design freedom and ease of production, it is possible to minimize the operation failure even in the long-term use deformation.

In addition, referring to the detailed view of FIG. 5, since the radius Rp to which the locking and unlocking force is applied is considerably smaller than the radius Rh of the manipulation handle 70 to which the rotational force is applied, even if the user has a small force. By operating the operation handle 70, the locking and releasing operation can be easily realized.

7 is an exploded perspective view showing an oven locking device of the electric pressure cooker according to another embodiment of the present invention.

In the above-described embodiment of the present invention, two locking parts are configured to restrain and release both sides of the oven, while the embodiment of the present invention illustrates that the four locking parts are configured.

That is, as shown in FIG. 7, the configuration of the rod portions 182 and 186 of the rockers 181 and 185 linearly moved by the operation handle 170 and the sliding pin (not shown) of the operation handle 170 is shown. Is the same as the configuration of the above-described embodiment.

However, two locking portions 183 and 184 (187 and 189) of the rockers 181 and 185 are configured in pairs to the respective rod portions 182 and 186.

That is, in the state in which the two locking portions 183, 184 (187, 189) spaced apart at predetermined intervals in the circumferential direction of the oven cover 160 are interconnected with the connecting bars 182a, 186a, respectively. 182a and 186a.

At this time, it is preferable that the lengths of the locking parts 183 and 184 (187 and 189) are smaller than the lengths of the locking parts of the above-described embodiment.

As described above, the oven locking device according to another embodiment of the present invention including four locking parts 183 and 184 (187 and 189) can reduce the material cost constituting the rocker compared to the above-described embodiment, and the oven cover 160 Since four places are uniformly constrained in the circumferential direction of), the sealing performance of the oven is improved, and the deformation amount of the oven cover can be minimized even for a long time use.

On the other hand, in the embodiment of the present invention illustrates that the locking portion of the rocker is composed of two or four, it may be configured in a variety of six or more as needed.

The oven lock device of the electric pressure cooker according to the present invention configured and operated as described above is configured so that only a part of the oven cover and the oven are restrained by the locker, thereby minimizing the occurrence of interference during the operation of locking and releasing the oven cover, In addition, since the movement of the locker by the operation handle is minimized, the locking and releasing operation is easily performed even with a small force, thereby providing an advantage of improving user convenience.

Claims (12)

An oven having an upper portion and having a catch portion at the upper portion; An oven cover adapted to cover the open portion of the oven; An operation handle operable to lock the oven cover in or out of the oven; A plurality of locking means for restraining or releasing the oven cover and the oven from each other by linearly moving radially from the engaging portion of the oven and the outer circumference of the oven cover according to the operation of the operation handle; The oven locking device of the electric pressure cooker, characterized in that it comprises a movement conversion means for converting the rotational movement of the operation handle to a linear movement to the locking means. The method of claim 1, The movement converting means includes a pair of pins protruding from the lower end of the operation handle, and a sliding groove formed at each of the locking means, and the sliding pins being inserted such that the locking means move linearly when the operation handle rotates. Oven lock of the electric pressure cooker, characterized in that it comprises. The method according to claim 1 or 2, Locking portion of the oven oven locking device of the electric pressure cooker, characterized in that the flange portion protruding in the shape of a ring to be constrained by the locking means. The method according to claim 1 or 2, The oven cover is an oven locking device of the electric pressure cooker, characterized in that the guide is provided to guide the locking means to move linearly. The method according to claim 1 or 2, The operation handle is the oven lock device of the electric pressure cooker, characterized in that rotatably supported by the oven cover. The method of claim 5, wherein The oven cover is an oven lock device of the electric pressure cooker, characterized in that the protrusion is formed to support the operation handle. The method according to claim 1 or 2, The locking means comprises a plurality of rods extending from the motion conversion means toward the outer circumferential surface of the oven cover, and a locking portion connected to each end of the rod portion to lock or release the latching portion of the oven and the oven cover. Oven lock of electric pressure cooker. The method of claim 7, wherein The locking portion has a cross-section of the '' 'shape, the oven lock device of the electric pressure cooker, characterized in that made to restrain or release the oven and the oven cover. The method according to claim 1 or 2, The locking means is an oven locking device of the electric pressure cooker, characterized in that configured to restrain or release both sides of the oven and the oven cover facing each other. The method according to claim 1 or 2, And the locking means is configured to restrain or release the four portions of the oven and the oven cover. The method of claim 10, The locking unit is provided with four, each two are connected to each other by a connecting bar, the oven lock device of the electric pressure cooker, characterized in that connected to the rod. An oven having an upper portion and having a catch portion at the upper portion; An oven cover adapted to cover the open portion of the oven; An operation handle rotatably supported by the oven cover, the operation handle being operable to protrude from a plurality of sliding pins to be locked or released in the oven; Sliding grooves are provided to insert the sliding pins of the operation handle, respectively, and are connected to both circumferential surfaces of the oven at both sides of the operation handle, and linearly moved in the radial direction of the oven according to the operation of the operation handle. And an oven cover and a plurality of locking means for restraining or releasing the oven from each other.