KR0170124B1 - Apparatus for opening and closing of cover in electric pressure rice cooker - Google Patents

Abstract

The present invention relates to a lid opening and closing device of an electric pressure cooker, and in particular, the inner cylinder and the lid is detached as the lever is pulled by the rotation of the motor, and the remaining steam is discharged by the rotation of the motor, and then the inner cylinder and the lid are separated. By automatically opening the lid, it relates to a lid opening and closing device of the electric pressure cooker to facilitate the use.

Description

Lid opener of electric pressure cooker

1 is a cross-sectional view of a general electric pressure cooker.

2 is a cross-sectional view of the electric pressure cooker to which the lid opening and closing device according to an embodiment of the present invention is applied.

3 is a plan view of a drive intermittent gear according to an embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

10 container 11: inner container

12: heater 16a: hinge shaft

20: lid 21: cover

22: steam outlet 23: disc

24: lever 30: motor

31: drive intermittent gear 31a: gear part

32: driven gear 33: reduction gear

34: worm wheel 35: worm gear

36: Cam 37: Link

The present invention relates to a lid opening and closing device of an electric pressure cooker, and more particularly, the inner cylinder and the lid is detached while the lever is pulled by the rotation of the motor, and the remaining steam is discharged by the rotation of the motor, and then the inner cylinder and the lid are fastened. At the same time the lid is automatically opened by the lid, and relates to a lid opening and closing device of the electric pressure cooker for ease of use.

In general, the electric pressure cooker is composed of a container (1) having an inner cylinder (2) and a lid (4) which opens and closes the upper part of the container (1) around the hinge portion (la), as shown in FIG. . The lower part of the container 1 is provided with the hot plate 3 in which the heater 3a which heats the bottom face of the inner cylinder 2 is embedded, and the heat retention which heats and heats the inner cylinder 2 in the upper part of the container 1 is carried out. The heater 3b is provided. On the other hand, a cover 5 for sealing the upper part of the inner cylinder 2 is provided on the bottom of the lid 4, and a rotating ring 6 having a plurality of protrusions 6a is provided on the inner circumferential surface of the lower lid 4. The rotating ring 6 can be rotated by the handle 6b protruding inwardly of the lid 4.

In addition, the outer circumferential surface of the upper portion of the inner cylinder (2) is formed with a catching jaw (2a) is caught on the projection (6a), the lid (4) is provided with a steam discharge port for discharging it to the outside when a predetermined pressure is set inside the container ( 7) is formed, and a safety valve (8) for forcibly discharging the pressure inside the container (1) is formed.

The electric pressure cooker configured as described above closes the lid 4 in a state containing rice containing water in the inner barrel 2 first. At this time, when the handle 6b formed on the lid 4 is rotated, the rotary ring 6 is rotated so that the projection 6a is fitted to each locking jaw 2a and the lid 5 is caught in the upper portion of the container 1. Will be sealed. In this state, when the heater 3a is operated, the heating plate 3 is heated, and the bottom surface of the inner cylinder 2 is heated and cooking is performed at the same time. At this time, since the interior of the container 1 is sealed, when a predetermined pressure is set, water vapor is discharged to the outside through the steam outlet 7, and cooking is completed. After the cooking is completed, opening the safety valve (8) to discharge all the water vapor inside the container (1) in this state by rotating the rotary ring (6) using the handle (6b) projection 6a is caught Departure from (2a) allows the lid 4 to be opened. In addition, when the warming heater 3b provided at the upper end of the container 1 when the rice is warmed in a completed state is operated, the rice is kept warm at a constant temperature.

However, in the electric pressure cooker as described above, when the lid 4 is attached to or detached from the container 1, the rotation ring 6 is rotated so that the protrusions 6a and the locking jaws 2a are rubbed with each other. There are disadvantages. That is, since the projection 6a and the engaging jaw 2a are engaged with each other in an arc shape by rotation, the friction distance is increased and wear is severe. In addition, when the projections 6a or the locking projections 2a are rubbed, there is a problem such as poor hygiene when the metallic powder generated therefrom falls on the food.

As a recent technique for solving the above problems, a pressure cooker as described in Korean Patent Application Laid-Open No. 88-7511 is known. It forms arc-shaped inclined surface on the top outer peripheral surface of the pot, installs the handle in the center hole of the pot lid, installs the pivoting plate on the bottom, forms the spiral groove on the bottom, and the spiral groove radially between the pot lid and the inner cover. By inserting the insertion piece of the inner end between the hooks, the hook part of the outer end is detached from the arc-shaped slope of the pot, and the pot lid is opened and closed, thereby reducing the friction distance and minimizing abrasion due to friction, as well as opening and closing the pot lid. It is flexible so that the use of the pressure cooker according to the opening and closing of the pot lid is made convenient.

However, such a pressure cooker can reduce the friction caused by the friction when the lid is attached to the container, but the trouble caused by the user to rotate the handle to remove the lid on the container when cooking or finished. In addition, there is a problem in that the user has to manually open the steam outlet after cooking is completed.

Accordingly, the present invention has been made in view of the above problems, the first object is to provide a lid opening and closing device of the electric pressure cooker to automatically open and close the lid to the container as well as to automatically open and close the lid from the container. There is.

In addition, a second object of the present invention to provide a lid opening and closing device of the electric pressure cooker to automatically open the steam outlet when cooking is completed. The present invention for achieving the first object as described above is installed to open and close the upper portion of the container while the lid is rotated together with the hinge shaft fixed to the upper end side of the container in which the inner cylinder is seated from the top, A cover is installed inside the cover to seal the upper portion of the inner cylinder, and the disk and the inner center of the cover is installed to be rotatable about the longitudinal direction, a plurality of levers on the outer end of the disk is radially installed In the electric pressure cooker configured to detach the upper end of the cover and the upper end of the inner cylinder through the holder when the disc is rotated, the driven gear connected to the upper shaft to interlock with the disc, the cylindrical A drive intermittent gear intermittently engaged with the driven gear through a gear part formed only in part, and the drive intermittent gear is forward and reverse Intermittent meshing with the gear portion of the motor, the drive intermittent gear rotated by being intended to provide a lid opening and closing device of the electric pressure cooker which is provided eoga reduction gear for rotating the gear to be interlocked with the hinge axis.

The present invention for achieving the second object as described above is a cam formed inside the gear portion of the drive intermittent gear, the lower end is connected to the cam and the upper end is connected to the steam outlet formed in the lid to rotate the cam If you want to provide a lid opening and closing device of the electric pressure cooker further comprises a link to open and close the steam outlet when being raised.

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

2 is a view showing the electric pressure cooker to which the lid opening and closing apparatus according to an embodiment of the present invention is applied, the inner cylinder 11 is installed inside the container 1, and the heater 12 is disposed below the inner cylinder 11. The embedded hot plate 13 is installed, and a lid 20 is rotatably opened and closed about the hinge portion 16 on the upper portion of the container 10.

In addition, the lower portion of the lid 20 is provided with a cover 21 for sealing the upper portion of the inner cylinder 11, the disc 23 is installed in the upper center of the cover 21, the rotation of the disc 23 Accordingly, a plurality of levers 24 radially advanced back and forth are provided.

On the other hand, the outer end of each lever 24 is formed with a c-shaped holder 25 for fixing the locking projection 15 formed on the upper end of the inner cylinder 11 and the outer peripheral surface of the inner cylinder 11, the disc 23 A driven gear 23 is installed above the driving gear, and a drive intermittent gear 31 engaged with the driven gear 32 is provided to be driven by the motor 30.

Then, the worm wheel 34 is driven through the reduction gear 33 which is decelerated in multiple stages while being engaged with the driving intermittent gear 31, and the worm gear 35 engaged with the worm wheel 34 is hinged ( It consists of a structure combined with 16a). That is, when the hinge shaft 16a formed in the hinge portion 16 connecting the lid 20 and the container 10 is rotated by the worm gear 35, the lid 20 is automatically opened.

On the other hand, as shown in FIG. 3 on the upper side of the drive intermittent gear 31, a cam 36 is formed and the steam outlet 22 is opened and closed via a link 37 connected to the cam 36. That is, when the driving intermittent gear 31 is rotated after the cooking is completed, the link 37 is raised and the steam outlet 22 is lifted to open. At this time, all the steam remaining in the inner cylinder 11 is exhausted.

In other words, the drive intermittent gear 31 has a gear portion 31a formed on one side thereof, is engaged with the reduction gear 33, and a cam 36 is formed inside the gear portion 31a. That is, when the motor 30 is rotated forward while the lid 20 is opened, the reduction gear 33 engaged with the gear part 31a is rotated, and at this time, the worm wheel 34 and the worm gear 35 rotate. The lid 20 is closed while the hinge shaft 16a is rotated. In addition, when the lid 20 is closed and the driving intermittent gear 31 is continuously rotated forward, the gear 31A is engaged with the driven gear 32 while the driven gear 32 is rotated, and the disc 23 is rotated at this time. At the same time as the 24 is pulled out, the holder 25 fixes the outer circumferential surface of the locking jaw 15 and the cover 21.

In addition, when a predetermined atmospheric pressure is set in the inner cylinder 11 during cooking, steam is discharged through the steam outlet 22, and when the cooking is completed, the motor 30 is rotated forward. At this time, since the gear part 31a is separated from the driven gear 32 and the reduction gear 33, they are not rotated but only the cam 36 is rotated so that the link 37 is raised. At this time, the steam outlet 22 is forcibly raised by the rise of the link 37 so that all remaining steam in the inner cylinder 11 is discharged.

On the other hand, when all the remaining steam is discharged while the motor 30 is rotated in reverse, the gear portion 31a is sequentially engaged with the Middle East gear 32 and the reduction gear 33, the lever 24 is pushed to fasten the lid 20 Is released and the lid 20 is automatically opened as the hinge shaft 16a is rotated.

In the figure, reference numeral 14 is a heat insulating heater formed in the upper end of the container 10 to heat the inner cylinder 11 when warming.

In the present invention constituted as described above, when the motor 30 is rotated forward while the rice and water are contained in the inner cylinder 11, the gear part 31a is engaged with the reduction gear 33 and the worm wheel 34 and the worm gear. 35 is rotated and the lid 20 is automatically closed as the hinge shaft 16a is rotated. In addition, when the motor 30 is continuously rotated forward with the lid 20 closed, the gear part 31a is disengaged from the reduction gear 33 and is engaged with the driven gear 32. At this time, the disc 23 is rotated and the lever is rotated. (24) is pulled In addition, when the lever (24) is pulled, the lid 25 is fastened by holding the outer circumferential surface of the latching jaw (15) and the cover (21).

In such a state, when the heater 12 is operated, the hot plate 13 will boil the inner cylinder 11 to cook water. In addition, when steam is generated in the inner cylinder 11 or more during the cooking process, a certain amount of water vapor is discharged through the steam outlet 22. On the other hand, when the motor 30 is rotated forward after the cooking is completed, the gear part 31a is separated from the driven gear 32 to rotate, and at this time, the link 36 is raised while the cam 36 is rotated together. When the link 37 is raised in this way, the steam outlet 22 is forcibly lifted and all the remaining steam in the inner cylinder 11 is discharged to atmospheric pressure, and at the same time, the motor 30 is reversely rotated. At this time, the gear part 31a is sequentially engaged with the driven gear 32 and the reduction gear 33 and rotates them. At this time, the lever 25 is pushed and the holder 25 is separated from the locking jaw 15 so that the lid ( 20 is released and the lid 20 is automatically opened while the hinge shaft 16a is rotated.

As described above, in the present invention, the lid is automatically closed by the forward rotation of the motor, and the inner cylinder and the cover are automatically closed in the closed state, and the inner cylinder is sealed, and when the motor is rotated forward and reverse after cooking, Simultaneously with the release of the residual steam, the lid and container are released and the lid is automatically opened.

Claims (2)

The inner cylinder 11 is installed to open and close the upper portion of the container 10 while the lid 20 is rotated in a fixed state with the hinge shaft 16a on one side of the upper container 10 is seated from the upper, A cover 21 for sealing an upper portion of the inner cylinder 11 is installed inside the lid 20, and a disc 23 is disposed at the inner center of the lid 20 and the cover 21 about the longitudinal direction. It is rotatably installed, and a plurality of levers 24 are radially installed at the outer end of the disc 23 so that when the disc 23 is rotated, the outside of the cover 21 through the holder (25) In the electric pressure cooker configured to detach the end and the upper locking jaw (15) of the inner cylinder 11, the driven gear 32 connected to the shaft in the upper portion so as to be interlocked with the disc 23, and formed only in a portion of the circumference A drive intermittent gear 31 intermittently engaged with the driven gear 32 through a gear part 31a, and the drive A motor 34 for rotating the hull gear 31 in the forward and reverse directions, and a gear 34 intermittently engaged with the gear part 31a of the driving intermittent gear 31 and interlocked with the hinge shaft 16a ( A lid opening and closing device of an electric pressure cooker, characterized in that the reduction gear 33 for rotating 35 is provided. According to claim 1, wherein the cam 36 formed on the inner side of the gear portion 31a of the drive intermittent gear 31, the lower end is connected to the cam 36, the upper end of the steam formed in the lid 20 The lid opening and closing device of the electric pressure cooker, characterized in that it further comprises a link (37) connected to the outlet (22) to open and close the steam outlet (22) when the cam 36 is rotated.