KR200178595Y1 - Electric pressure cooker - Google Patents

Abstract

The present invention relates to an electric pressure cooker, comprising: an outer passage having a heating space upwardly opened therein; An outer cylinder lid coupled to the outer cylinder to open and close the opening of the outer cylinder; A cylindrical pressure vessel accommodated in the heating space; A container lid disposed on an inner surface of the outer cylinder lid to be rotatable relative to the outer cylinder lid to block an upper region of the pressure vessel to form a predetermined pressure space in cooperation with the pressure vessel; Coupling means respectively formed on the pressure vessel and the container lid and engaged with each other in an up and down direction to couple the pressure vessel and the container lid to each other; And a container lid rotating means disposed on the surface of the outer lid to rotate the container lid relative to the pressure vessel so as to be rotatable between a coupling position where the coupling means is engaged with each other and a release position where the engagement means are disengaged with each other. It is done. Thereby, the electric pressure cooker which is comparatively less subject to the use place and is easy to use is provided.

Description

ELECTRIC PRESSURE COOKER

The present invention relates to an electric pressure cooker, and more particularly, to an electric pressure cooker which is easy to use while being less restricted by the use place.

A pressure cooker is a kind of cooker that is equipped with a pressure vessel so that the internal pressure is increased so that the boiling point is 100 ° C. or more, so that the food to be cooked is boiled or cooked well. In recent years, electric pressure cookers have been widely used for the convenience of using electric power as a heating source.

The electric pressure cooker, generally forming a heating space therein, the outer cylinder of the upper opening and the outer cylinder lid coupled to the outer cylinder to open and close the opening of the outer cylinder, the pressure vessel accommodated inside the outer cylinder, the pressure vessel It is provided with a container lid to be sealed to the outside, a coupling means for forcing the pressure vessel and the container lid is forcibly coupled, and a steam discharge means to reduce the elevated pressure inside the pressure vessel during cooking.

1 is a partial longitudinal cross-sectional view of a conventional electric pressure cooker, Figure 2 is a plan view of the rotary coupling frame region of FIG. As shown in these figures, the electric pressure cooker is accommodated in the outer cylinder 101, the outer cylinder lid 103 coupled to the outer cylinder 101 to open and close the opening of the outer cylinder 101, and the inside of the outer cylinder 101. It is coupled to the pressure vessel 105 and the outer cylinder lid 103 has a container lid 107 for blocking the upper region of the pressure vessel 105.

The pressure vessel 105 has an upwardly open cylindrical shape and a plurality of protruding pieces 106 protruding outward in the radial direction are spaced apart from each other at predetermined intervals in the circumferential direction.

The container lid 107 has a substantially disk shape, and at the edge thereof, an airtight holding part protruding from the plate surface and extending in the circumferential direction so as to close the pressure vessel 105 in an airtight manner and contacting the inner edge of the pressure vessel 105. 108 is formed.

On the other hand, the outer cylinder lid 103, the lid body 111 is coupled to the upper and lower pivots with respect to the outer cylinder 101, and the pressure is disposed to be rotatable in the lid body 111 is raised inside the pressure vessel 105 Rotating coupling frame 113 for coupling the container lid 107 to the pressure vessel 105 to withstand the rotation, and is disposed to be exposed to the surface of the lid body 111 is rotated by rotating the rotary coupling frame 113 Coupling frame 113 has a rotary knob 115 to be engaged with each other in the vertical direction to the pressure vessel 105.

The rotary coupling frame 113 passes through the protrusion pieces 106 of the pressure vessel 105 along the circumferential direction and is disposed below each of the protrusion pieces 106 so as to engage with each other in the vertical direction. Is formed.

The container lid 107 is coupled to the lid body 111 to support the rotary coupling frame 113 from the lower side, the lid body 111 and the container lid 107 to the steam inside the pressure vessel 105 Solenoid valve body (not shown) and the steam discharge pipe 119 is coupled to discharge to the outside. The pressure end 121 is coupled to the exposed end of the steam discharge pipe 119 to block the outlet formed at the end of the steam discharge pipe 119 with a predetermined mass.

On the other hand, the rotary coupling frame 113 and the container lid 107 are separately manufactured by die-casting the aluminum member, respectively, after each surface treatment again to be bonded to each other.

However, in the conventional electric pressure cooker, the rotary coupling frame 113 and the container lid 107 are separated and manufactured by die casting, which is relatively expensive, and then each of them is subjected to a separate surface treatment process. There is a problem that the manufacturing cost is increased compared to the case of integrally formed.

Figure 3 is a schematic partial longitudinal cross-sectional view of another conventional electric pressure cooker. The same reference numerals are given to the same and equivalent parts as those described above with reference to FIG. 1, and a detailed description thereof will be omitted. As shown, a plurality of protruding pieces 106 protruding outward in the radial direction are spaced apart from each other along the circumferential direction at the opening edge of the pressure vessel 105, and in the opening region of the pressure vessel 105 Rotating coupling frame 113 and the container lid 107 formed integrally is coupled. A side hole of the outer cylinder lid 103 is formed with a through hole 131 having a long hole shape along the circumferential direction, and the through hole 131 can rotate the rotary coupling frame 113 relative to the pressure vessel 105. The handle 133 extending along the radial direction is accommodated.

By the way, in the conventional electric pressure cooker, the handle 133 protrudes outward of the lid body 111 along the radial direction to secure the side space in order to rotate the rotary coupling frame 113 and the container lid 107. There is a problem in that it is restricted in the place of use. In addition, the through hole 131 formed in the lid body 111 so that the handle 133 may protrude to the side may not only easily accumulate foreign matter, but also may not be easy to clean, resulting in a lot of inconvenience in use.

In addition, the container lid 107 coupled to block the upper region of the pressure vessel 105 has a problem that the deformation is easily generated by the repeated action of the elevated internal pressure during cooking.

Accordingly, it is an object of the present invention to provide an electric pressure cooker that is relatively easy to use with less restrictions according to the place of use.

Still another object of the present invention is to provide an electric pressure cooker capable of suppressing deformation of parts.

1 is a partial longitudinal cross-sectional view of a conventional electric pressure cooker,

2 is a plan view of the rotary coupling frame region of FIG.

3 is a schematic partial longitudinal sectional view of another conventional electric pressure cooker,

4 is a plan view of the electric pressure cooker according to an embodiment of the present invention,

5 is an enlarged partial cross-sectional view taken along the line VV of FIG. 4;

6 is an enlarged partial cross-sectional view taken along line VI-VI of FIG. 4;

7 is a view showing a raised state of the container lid of Figure 4,

8A is a plan view of the inner plate region at the engaged position of the rotary knob of FIG. 6;

8B is a cross-sectional view of the pressure additional pressure rod region corresponding to FIG. 8A;

FIG. 8C is a cross-sectional view illustrating the guide inclination part region corresponding to FIG. 8A;

9A to 9C are views corresponding to Figs. 8A to 8C, respectively, at the release position of the rotary knob.

Explanation of symbols on the main parts of the drawings

11: outer cylinder 21: outer lid

31: slider 33: spring

35: rotation handle 37: electric bar

41: pressure vessel 42: protrusion

51: container lid 53: hanging piece

57: boss 59: bulge

61: steam discharge pipe 63: pressure weight

65: solenoid valve body 73: guide slope

75: pressure additional pressure rod

The above object, according to the present invention, the outer passage in which the heating space is opened upwardly; An outer cylinder lid coupled to the outer cylinder to open and close the opening of the outer cylinder; A cylindrical pressure vessel accommodated in the heating space; A container lid disposed on an inner surface of the outer cylinder lid to be rotatable relative to the outer cylinder lid to block an upper region of the pressure vessel to form a predetermined pressure space in cooperation with the pressure vessel; Coupling means respectively formed on the pressure vessel and the container lid and engaged with each other in an up and down direction to couple the pressure vessel and the container lid to each other; And a container lid rotating means disposed on the surface of the outer lid to rotate the container lid relative to the pressure vessel so as to be rotatable between a coupling position where the coupling means is engaged with each other and a release position where the engagement is released. It is achieved by an electric pressure cooker.

Here, the coupling means, a plurality of protrusions protruding along the radial direction to the opening edge of the pressure vessel, a predetermined extension along the circumferential direction and spaced at a predetermined interval from each other, protruding from the edge of the container lid and each It is preferable to include a plurality of engaging pieces that are bent along the radial direction so that they can be disposed below the protruding pieces.

And, the container lid rotating means, the rotary handle is disposed so as to be rotatable about the rotation axis disposed in the up and down direction on the surface of the outer cylinder lid, one end is arranged to be rotatable about the rotation axis of the rotary handle and the other end It is effective to include an electric bar that is integrally fixed to the container lid.

A through hole is formed in a central region of the outer lid, and a central portion of the container lid is provided with a raised portion accommodated in the through hole to be exposed to the outside, and the raised portion communicates with the pressure space and the outside. It is preferable that the decompression means is formed so as to reduce the pressure in the pressure vessel.

The container lid is preferably coupled to the outer cylinder lid to be able to flow a predetermined distance in the vertical direction from the pressure vessel.

It is effective to further include an elastic means interposed between the outer lid and the container lid to apply an elastic force to be spaced apart from the outer lid of the container lid.

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

Figure 4 is a plan view of the electric pressure cooker according to an embodiment of the present invention, Figure 5 is an enlarged partial cross-sectional view taken along the line V-V of Figure 4, Figure 6 is an enlarged partial cross-sectional view taken along the line VI-VI of FIG. 7 is a view showing a raised state of the container lid of FIG. As shown in these drawings, the electric pressure cooker is coupled to the outer cylinder 11, which forms a heating space therein, and is rotatably coupled to the outer cylinder 11 in the vertical direction to open and close the upper opening of the outer cylinder 11. The outer cylinder lid 21, the pressure vessel 41 accommodated inside the outer cylinder 11, and the container lid 51 coupled to the rear surface of the outer cylinder lid 21 to block the upper region of the pressure vessel 41 Have

The pressure vessel 41 has an upwardly open cylindrical shape, and a plurality of protruding pieces 42 which protrude along the radial direction and extend along the circumferential direction and are spaced apart from each other are formed at the edge of the opening.

The outer cylinder lid 21 is composed of an outer plate 22 and an inner plate 23 spaced apart from each other on the outer plate 22. Through-holes are formed in the center region of the outer plate 22 and the inner plate 23, the inner plate 23 is coupled to the container lid 51 is rotatable and vertically flowable to block the opening of the pressure vessel (41). It is.

The container lid 51 has a disk shape, and protrudes from the plate surface at the edge thereof in correspondence with the protruding pieces 42 of the pressure vessel 41 and inwards so that the end regions can be engaged with the protruding pieces 42 along the vertical direction. A plurality of bent locking pieces 53 are formed. Inside the locking piece 53, there is formed a ring-shaped airtight holding part 55 in close contact with the inner edge of the opening of the pressure vessel 41 to maintain airtightness.

The upper surface of the container lid 51 has a plurality of bosses 57 are formed to be coupled by the outer cylinder lid 21 and the screw 30, the central region can be exposed to the outside of the outer cylinder lid 21. The raised portion 59 is formed to be raised. In the ridge 59, a steam discharge pipe 61 and a solenoid valve body 65 are respectively provided so that one end communicates with the internal pressure space of the pressure vessel 41 and the other end is exposed to the outside. The pressure end 63 is coupled to the exposed end of the 61 so as to block the outlet formed at the end of the steam discharge pipe 61 with a predetermined mass.

The inner plate 23 has a slider 31 corresponding to the bosses 57 and supporting the container lid 51 and rotating integrally with the container lid 51. The inner plate 23 has a through hole 24 which is penetrated to accommodate one region of the slider 31 and a protrusion formed along both edges of the through hole 24 and formed at both side edges of the slider 31. Guide grooves 25 for receiving guides are formed respectively.

Screw sliders are formed in each slider 31 so that one end of the screw 30 coupled to each boss portion 57 can pass therebetween, and the upper and lower portions are formed between the lower edge of the through hole 24 and each boss portion 57. Spring 33 is disposed so as to be stretchable along the direction to elastically press the container lid 51 is interposed therebetween.

On the other hand, on one side of the outer plate 22 around the rotating shaft disposed along the thickness direction, the container lid 51 is rotated so as to be rotatable between the coupling position and the release position is released from the coupling coupled to the pressure vessel 41 ( 35) is combined.

FIG. 8A is a plan view of the inner plate region at the engaged position of the rotary knob of FIG. 6, FIG. 8B is a cross-sectional view of the pressure additional pressure rod region corresponding to FIG. 8A, and FIG. 8C is a cross-sectional view of the guide inclined portion region corresponding to FIG. 8A. 9A to 9C are views corresponding to Figs. 8A to 8C, respectively, at the release position of the rotary knob. As shown in these figures, one end is fixedly coupled to the container lid 51 in the lower region of the rotary knob 35 to rotate integrally with the rotary knob 35 when the rotary knob 35 is rotated, the container lid 51. The rotating bar 37 extending along the radial direction is rotatably integrated so as to rotate.

The electric bar 37 penetrates the plate surface to form a long hole pin hole 39, the upper surface of the container lid 51 is fixed pin 67 is formed so as to be accommodated in the pin hole 39 is upwardly projected have. The inner plate 23 is provided with an arc-shaped fixing pin accommodation hole 71 corresponding to the rotational trajectory of the fixing pin 67.

One side of the steam discharge pipe 61 is provided so that the pressure additional pressure rod 75 which opens the discharge port of the steam discharge pipe 61 by pressing the pressure weight 63 to incline the pressure weight 63. The upper end of the pressure additional pressure rod 75 is bent to be in contact with the lower end surface of the pressure weight 63, and the lower end is rounded. The raised portion 59 is formed with a pressure rod support 69 so as to support the pressure additional pressure rod 75 to be elevated, and the inner plate 23 is formed to be inclined along the rotational trajectory of the pressure additional pressure rod 75. A guide inclined portion 73 for raising and lowering the pressure additional pressure rod 75 is formed.

By such a configuration, when food is accommodated in the pressure vessel 41, the pressure vessel 41 is accommodated / seated inside the outer cylinder 11. When the outer cylinder lid 21 is rotated downward, the locking piece 53 of the container lid 51 passes between the protruding pieces 42 of the pressure vessel 41, and the airtight holding part 55 is driven by the spring 33. In close contact with the inner edge of the opening of the pressure vessel 41 in the elastically pressurized state.

At this time, when the rotary knob 35 is rotated to the engaged position, the electric bar 37 coupled to the lower portion of the rotary knob 35 is rotated integrally with the rotary knob 35. As a result, the container lid 51 is rotated relative to the pressure vessel 41, and each locking piece 53 formed on the container lid 51 is disposed at each lower side of the protruding piece 42 of the pressure vessel 41. Are engaged with each other along the vertical direction.

When the pressure vessel 41 is heated by the heating means not shown to increase the pressure inside the pressure vessel 41, the container lid 51 is spaced apart from the pressure vessel 41, as shown in FIG. 7. The spring 33 is moved upward while compressing. When cooking is completed, the solenoid valve body 65 is opened to discharge steam therein.

When the food is to be taken out, the rotary knob 35 is rotated to the release position to rotate the container lid 51 to the release position. At this time, the pressure additional pressure rod 75 disposed to rotate integrally with the ridge 59 is rotated in contact with the upper inclined surface of the guide inclined portion 73 formed on the upper surface of the inner plate 23 and moves upward. By this, the pressure weight 63 in contact with the bent end of the pressure additional pressure rod 75 is inclined with respect to the axis of the steam discharge pipe 61 to open the discharge port to discharge the residual steam in the pressure vessel 41. .

As described above, according to the present invention, by providing a rotary knob to rotate the container lid on the outer lid, unlike the conventional operation to secure the side space to rotate the handle protruding to the side, It can reduce the radius of use and is provided with an electric pressure cooker that is easy to operate and use.

In addition, according to the present invention, when the internal pressure rise of the pressure vessel at the time of cooking by allowing the container lid to flow upward upward with respect to the pressure vessel, there is provided an electric pressure cooker that can suppress the deformation of the container lid due to the increase in the internal pressure. do.

Electric pressure cooker according to the present invention, by integrally forming the engaging piece for coupling the pressure vessel on the container lid and at the same time by installing the rotary knob on the upper surface of the outer lid for the rotation of the container lid, reducing the manufacturing cost Of course, at the same time can improve the user's convenience.

Claims (6)

An outer passage in which an upwardly opened heating space is formed; An outer cylinder lid coupled to the outer cylinder to open and close the opening of the outer cylinder; A cylindrical pressure vessel accommodated in the heating space; A container lid disposed on an inner surface of the outer cylinder lid to be rotatable relative to the outer cylinder lid to block an upper region of the pressure vessel to form a predetermined pressure space in cooperation with the pressure vessel; Coupling means respectively formed on the pressure vessel and the container lid and engaged with each other in an up and down direction to couple the pressure vessel and the container lid to each other; And a container lid rotating means disposed on the surface of the outer lid to rotate the container lid relative to the pressure vessel so as to be rotatable between a coupling position where the coupling means is engaged with each other and a release position where the engagement means are disengaged with each other. Electric pressure cooker. The method of claim 1, The coupling means may include a plurality of protrusions protruding radially at the edge of the opening of the pressure vessel and extending along the circumferential direction and spaced apart from each other at predetermined intervals, and protruding from the edges of the container lids. Electric pressure cooker comprising a plurality of engaging pieces that are bent along the radial direction to be disposed on the lower side. The method of claim 1, The container lid rotation means, the rotary handle is disposed to be rotatable about a rotation axis disposed in the up and down direction on the surface of the outer cylinder lid, one end is arranged to be rotatable about the rotation axis of the rotary handle and the other end is An electric pressure cooker comprising an electric bar fixed to the container lid integrally. The method according to any one of claims 1 to 3, A through hole is formed in a central region of the outer lid, and a central portion of the container lid is provided with a raised portion accommodated in the through hole to be exposed to the outside, and the raised portion communicates with the pressure space and the outside. An electric pressure cooker, characterized in that the decompression means is formed to reduce the pressure in the pressure vessel. The method according to any one of claims 1 to 3, The container lid is an electric pressure cooker, characterized in that coupled to the outer cylinder lid to be able to flow a predetermined distance in the vertical direction from the pressure vessel. The method of claim 5, And an elastic means interposed between the outer cylinder lid and the container lid to apply an elastic force to separate the container lid from the outer cylinder lid.