KR20010084698A - Lid opening device of Electric induction heating type rice cooker - Google Patents

Abstract

PURPOSE: A device for opening a lid of an electric pressure cooker is provided to promote the productivity of an electric pressure cooker by compacting structure and improving assembling efficiency. CONSTITUTION: A lid opening device of an electric pressure cooker includes: a cylindrical recessed groove(13) integrated with a body case; a fitting ledge(131) formed in the upper portion of the recessed groove; a push pin(30) having an annular ledge(301) to be settled in the recessed groove; a compression spring(34) fitted in the push pin; and a fixing ring(38) fitted in the fitting ledge to prevent the displacement of the push pin. The lid opening device is simply assembled by inserting the push pin in the recessed groove and fitting the fixing ring in the fitting ledge. Therefore, structure is compacted and the productivity of an electric pressure cooker is promoted.

Description

Lid opening device of Electric induction heating type rice cooker

The present invention relates to an electric pressure cooker, and more particularly, to a lid opening device of an electric pressure cooker having a simple configuration and easy assembly.

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 increasing the heating temperature at 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, various electric devices for heating the oven 10, an oven The steam discharge valve 16 etc. for adjusting the pressure in 10 are comprised.

The electric device comprises a working coil (not shown) for generating an induction current during cooking, and a heater (not shown) for relatively weak heat generation during warming.

As described above, according to the electric pressure cooker, the eddy current is induced in the oven 10 by the working coil, and the cooking operation is performed by heating the oven 10 due to the eddy current. In the cooking process, the lid 14 is oven. In close contact with the top of the (10), since the steam discharge valve 16 maintains a closed state, when the rice boils, the pressure inside the oven 10 is higher than the normal atmospheric pressure due to steam generation.

And, 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 working coil is stopped, and after the steaming process is completed, the steam discharge valve 16 is operated. By the steam inside the oven 10 is discharged to the outside by the heater in the state in which the pressure is lowered by the heater 10 is heated to a constant temperature is a thermal insulation process is in progress.

In the electric pressure cooker as described above, the lid 14 receives a rotational force upwardly by a hinge spring (not shown) in a state in which one end thereof is rotatably hinged to the main body case 12, and by the locking device The other end is mounted in a structure that selectively binds / disengages the main body case 12.

Here, the locking device is attached to the distal end of the release button (release button) 20, which is rotatably mounted to the front end of the main body case 12, the lid 14 is separable from the release button 20 The hook 22 and the release button 20 are made of an elastic member such as a tension spring for applying an elastic force to maintain an appropriate angle.

Therefore, according to this locking device, since one end of the release button 20 is pulled to the hook side by the elastic member, the release button is not rotated and is engaged with the hook to keep the lid closed. In this state, the lid 14 In the case of opening), one end of the release button 20 is rotated to release the binding state between the hook 22 and the release button 20. In this case, the lid 14 is rotated by the hinge spring. Is automatically opened by rotating upward.

On the contrary, when the lid 14 is closed, the lid 14 is simply pressed down. In this case, the upper end of the release button 20 is pressed against the tip of the hook 22 to be pressed down and then rotated. The hook 22 is engaged with the release button 20 again to maintain the lid 14 in a closed state.

That is, according to the locking device, the lid 14 is opened by a simple operation of pressing the release button 20, and the lid 14 can be closed only by pressing the open lid 14 downward. It is possible to easily perform the opening and closing operation of 14).

On the other hand, since the electric pressure cooker as described above performs a pressurizing action to form a strong pressure above the atmospheric pressure in the oven as described above during the cooking operation, a separate lid lock device to maintain the pressurized state in the oven (10) The oven 10 and the lid 14 are brought into close contact with each other. When the oven 10 and the lid 14 are subjected to the cooking process for a predetermined time in a state in which the oven 10 and the lid 14 are in close contact with each other, the lid is closed through the locking device after the end of cooking. At the time of opening 14, the rice spattered toward the inner surface of the lid 14 is stuck in the cooking process, so that the opening operation of the lid 14 is often not performed properly.

In order to prevent this phenomenon, the electric pressure cooker is provided with a lid opening device for opening the lid 14 properly, the lid opening device as shown in Figure 2 push pin (push pin) (30) ), A support plate 32 supporting the lower end of the push pin 30, and a compression spring 34 for applying an elastic pressing force upwardly with respect to the push pin 30.

Here, the push pin 30 is a rod-shaped member having an annular locking portion 301 formed in the middle thereof, which is located next to the release button 20 (see FIG. 1), and formed inside the upper surface of the main body case 12. Located in the cylindrical guide portion 121 is mounted in a structure that the upper end is protruded by a predetermined section through the through hole (12a).

And, the support plate 32 is located below the push pin 30, the both ends of the push pin by being screwed with the front end of the connecting piece portion 122 protruding downward from the upper surface of the main body case 12 30 is supported so as not to be separated, a sealing member 36 is interposed between the support plate 32 and the tip of the guide part 121 to prevent water vapor from flowing into the guide part 121.

In addition, the compression spring 34 is fitted under the push pin 30 so that the upper end thereof is in contact with the locking portion 301 and the lower end is in contact with the sealing member 36, and the support plate 32 is the main body case ( When coupled to 12) is in a compressed state to apply an elastic pressing force upwards against the push pin (30).

According to the lid opening device of the electric pressure cooker as described above, when the lid 14 is closed, the push pin 30 is pressed by the lid 14, and the locking device and the locking device are opened to open the lid 14. When the device is unlocked, the push pin 30, which has been pressed, protrudes by the elastic force of the compression spring 34, and pushes the lid 14 up strongly. Therefore, the close contact state of the lid 14 and the oven 10 is released momentarily, and the lid 14 is then rotated open by the rotational force of the hinge spring. At this time, the push pin 30 is not completely detached from the main body case 12 because the locking portion 301 is caught by the portion around the through hole 12a, and the sealing member 36 includes the support plate 32 and the guide portion ( Through the gap between the 121 to prevent the inflow of rice and the like into the guide portion 121.

That is, the lid opening device separates the lid 14 from the oven 10 by applying the spring force of the compression spring 34 to the lid 14 through the push pin 30 at the beginning of the opening operation of the lid 14. It is to act.

However, such a conventional lid opening device includes a separate component such as a support plate 32 for supporting the push pin 30, and a fastening screw S and a guide for mounting the support plate 32. There is a problem in that the number of components and the structure are complicated, such as the need for a sealing member 36 for sealing the inside of the part 121.

In addition, in the conventional assembly of the lid opening device, the push pin 30 is inserted into the guide part 121 in the state in which the main body case 12 is turned upside down in the structure of the guide part 121 whose bottom surface is opened, and the push pin 30 is opened. After protruding the tip of the through hole 12a, the compression spring 34 is inserted into the push pin 30, and proceeds through a cumbersome process of coupling the sealing member 36 and the support plate 32.

Therefore, according to the lid opening device of the conventional electric pressure cooker, there arises a problem that the productivity of the entire rice cooker decreases due to the structural complexity and degradation of the assembly as described above.

The present invention has been made to solve the above-described conventional problems, and its object is to provide a lid opening device for an electric pressure cooker that is concise and improves assembly performance, thereby helping to improve productivity of the entire rice cooker.

1 is a perspective view showing the appearance of a general electric pressure cooker.

Figure 2 is a cross-sectional view showing a lid opening device structure of the electric pressure cooker according to the prior art.

3 is a cross-sectional view showing a lid opening device structure of the electric pressure cooker according to the embodiment of the present invention.

Figure 4 is a perspective view showing the structure of the locking ring applied to the lid opening device of the electric pressure cooker according to an embodiment of the present invention.

5 is a plan view showing a lid opening device structure of the electric pressure cooker according to the embodiment of the present invention.

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

10: oven 12: body case

13: recess 131: locking jaw

13a: fitting groove 30: push pin

301: locking portion 34: compression spring

38: engaging ring 381: hook portion

Lid opening device of the electric pressure cooker provided to achieve the above object is formed integrally with the main body case, the diameter of which exceeds the diameter of the locking portion of the push pin, the groove portion provided with a fitting groove on the top; A structure having an annular locking portion formed in the middle thereof, the push pin being seated on the groove portion; A compression spring fitted to the push pin; It is made by including the engaging ring to prevent the separation of the push pin by fitting to the fitting groove of the groove.

Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. 3 to 5, and the same reference numerals will be given to the same parts as the prior art.

First, the lid opening device according to the embodiment of the present invention is provided with a recess 13 formed integrally with the main body case 12 (see FIG. 1), and the upper portion of the recess 13 as shown in FIG. The fitting jaw portion 131, the push pin 30 seated on the recess 13, the compression spring 34 fitted to the push pin 30, and the fitting fitting on the fitting jaw portion 131. By doing so, it comprises a locking ring (38) for preventing the separation of the push pin (30).

Here, the push pin 30 has a structure in which an annular locking portion 301 is formed in the middle of the push pin 30 as in the prior art, and the recess 13 is located at the upper surface of the main body case 12, and the diameter thereof is By exceeding the diameter of the locking portion 301 of the push pin 30, the push pin 30 can be inserted and mounted, and the lower end is made of a closed cylindrical shape. In addition, the fitting jaw portion 131 protrudes from the outer circumferential surface of the recess 13 to have a fitting groove 13a corresponding to the thickness of the locking ring 38.

As shown in FIG. 4, the engaging ring 38 is opened at predetermined intervals, and a hook portion 381 is formed at the ends of the separated ends.

Lid opening device according to an embodiment of the present invention configured as described above put the push pin 30 in the state in which the compression spring 34 is fitted into the groove portion 13, the upper end of the push pin 30 Pressing slightly down, the locking portion 301 is lowered below the fitting jaw 131, the assembly is assembled with only a simple operation of fitting the locking ring 38 to the fitting jaw 131. Here, the locking ring 38 is securely mounted by being hooked to the tip of the fitting jaw 131 in a state where the locking ring 38 is fitted to the fitting jaw 131 as shown in FIG. 5, and the push pin 30 is The locking portion 301 is not caught from the recess 13 by being caught by the fitting jaw portion 131. (See FIG. 4).

That is, according to the present embodiment, in order to support the push pins 30, the conventional supporting plate 32, the sealing member 36, and the supporting plate 32 are attached to support the push pin 30. Not only does not require a component such as a fastening screw (S) for the purpose, but also cumbersome, such as inverting the main body case 12 and attaching the support plate 32 to the main body case 12 by screwing in the assembly process. There is no need to go through the process.

Lid opening device of the electric pressure cooker according to the present invention, not only does not require a separate component to support the push pin in the structure of the recessed bottom portion closed, the push pin into the groove, Its simple configuration and high assembly make it easy to insert the locking ring, which helps improve the productivity of the entire rice cooker.

Claims (1)

A cylindrical recess formed integrally with the main body case; A fitting jaw portion provided at an upper portion of the groove portion; A structure having an annular locking portion formed in the middle thereof, the push pin being seated on the groove portion; A compression spring fitted to the push pin; Engagement ring to prevent separation of the push pin by fitting to the fitting jaw portion Lid opening device of the electric pressure cooker comprising a.