KR20000051157A - Cover structure for electrical pressure cooker - Google Patents

Abstract

PURPOSE: A structure of a lid for an electrical pressure rice cooker is provided, to prevent the generation of metal bits. CONSTITUTION: A structure of a cover comprises an outer cover (11) which is bound to the body part (1) of an electrical pressure rice cooker; an inner cover (12) which supports individual structure constituting a cover part (3); an inner lid (13) which is fixed by the inner cover (12) and covers the upper part of the inner oven (2); a pressure control part (14) which penetrates the outer side of the outer cover (11) and the inner side of the inner lid (13) and controls the pressure of the inner oven (2); a ring (15) which engages the inner lid (13) and the inner oven (2) by rotation; a packing (16) which sieves the gap between the inner lid (13) and the inner oven (2); a ring driving part (17) which drives the ring (15) when the inner lid (13) and the inner oven (2) are engaged; a plurality of grooves which are formed in the region contacted with the ring (15) at regular intervals to reduce the friction between the inner lid (13) and the ring (15); and a bearing (18) which is set in the individual groove.

Description

Cover structure for electrical pressure cooker {Cover structure for electrical pressure cooker}

The present invention relates to a lid structure of an electric pressure cooker for fastening the inner lid and the inner pot in the electric pressure cooker, and more particularly, to a lid structure of the electric pressure cooker having an improved fastening structure to reduce the friction force between the inner lid and the ring. .

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

Referring to FIG. 1, an inner pot 2 is detachably mounted in the main body 1 to protect the internal circuits and components while forming the external shape of the system, and is detachably mounted to the inner pot 2. The lid portion 3 covering the upper portion is attached to one side of the main body portion 1 and is opened and closed by the user. In addition, an operation unit 4 is formed at a predetermined outside area of the main body 1 and has a plurality of function selection keys formed thereon to support a user to arbitrarily select a start of cooking, a cooking time, and a cooking method of the food. When the user instructs the start of cooking through the operation unit 4, a coil heating unit 5 that provides a predetermined pressure and cooking heat for cooking food is disposed under the inner pot 2, and the inner pot 2 The lower side of the center is equipped with a temperature sensor 6 for detecting the temperature of the inner pot (2).

In the above, the lid portion 3 is an outer cover 11 coupled to the main body portion 1, a built-in cover 12 for supporting the respective structures constituting the lid portion 3, and the built-in cover 12 Attached and fixed by the inner cover 13 to cover the upper portion of the inner pot (2), the outer cover 11 is connected to the inner side of the inner pot (13) while penetrating through the inside of the inner pot (2) The pressure adjusting unit 14 for performing pressure control, the ring 15 for fastening the inner lid 13 and the inner pot 2, and the inner lid 13 are assembled to the inner lid 13 and the inner pot 2. It comprises a packing 16 for sealing the gap between the) and the ring driving part 17 for driving the ring 15 when the inner lid 13 and the inner pot 2 is fastened.

The inner lid 13 and the ring 15 is formed in a circular shape, the ring 15 is supported between the inner cover 12 and the inner lid 13 while supporting the upper portion of the inner lid 13 to rotate freely. It is configured to do so. At this time, the built-in cover 12 is provided with a guide so that the ring 15 does not leave a certain range.

The ring 15 is rotated while sliding in the upper portion of the inner lid 13 in accordance with the operation of the ring driving unit 17 to perform the fastening or release of the inner lid 13 and the inner pot (2). At this time, during the fastening operation of the ring 15, the lug part installed on the ring 15 and the lug part installed on the inner pot 2 are alternately fastened.

When cooking, the pressure inside the inner pot 2 rises to generate a force that pushes up the inner lid 13, and the ring 15 is designed to withstand the above force.

2 is a cross-sectional view showing a contact state between the inner lid 13 and the ring 15 according to the prior art.

Referring to FIG. 2, as a means for reducing friction with the inner lid 13, the ring 15 has protrusions 15A formed at the contact portion with the inner lid 13 to reduce the contact area.

However, in the case described above, since the ring 15 and the inner lid 13 are made of metal, friction occurs when the inner ring 13 and the inner pot 2 rotate to fasten, thereby causing abrasion. There is a problem.

As a result, when the frictional force is increased, a lot of rotational force is required to rotate the ring driving unit 17, that is, the rotary knob, which causes inconvenience in use because the user has to apply a lot of force during fastening.

In addition, there is a problem that the metal debris is generated due to abrasion to enter the inner pot (2) to give the user anxiety about food.

The present invention has been made to solve the above problems of the prior art, the object is to reduce the friction between the inner lid and the ring to facilitate the fastening of the inner lid and the inner pot, to prevent the occurrence of metal debris It is to provide a lid structure of the electric pressure cooker.

1 is a cross-sectional view showing the configuration of a general electric pressure cooker,

Figure 2 is a cross-sectional view showing a state of contact between the inner lid and the ring according to the prior art,

3 is a cross-sectional view showing a contact state of the inner lid and the ring according to the present invention;

Figure 4 is a plan view of the inner lid according to the present invention.

<Explanation of symbols on main parts of the drawings>

1: body portion 2: inner pot

3: lid part 4: operation part

5: coil heating part 6: temperature sensor

11: exterior cover 12: interior cover

13: inner lid 14: pressure adjusting unit

15 ring 16: packing

17 ring driving unit 18 bearing

According to the present invention for achieving the above object, the outer cover is coupled to the body portion of the electric pressure cooker, the inner cover for supporting the respective structures forming the lid portion, and the upper portion of the inner pot while being fixed by the inner cover An inner lid covering the cover, a pressure adjusting part connected to penetrate through the outside of the outer cover and the inner cover of the inner lid, and controlling the pressure inside the inner pot, a ring for fastening the inner lid and the inner pot while rotating a predetermined angle; In the lid structure of the electric pressure cooker including a packing assembled to the inner lid to seal the gap between the inner lid and the inner pot, and a ring driving portion for driving the ring when the inner lid and the inner pot are fastened,

To reduce the friction between the inner lid and the ring, the inner lid is formed with a plurality of grooves at predetermined intervals in contact with the ring, the lid structure of the electric pressure cooker, characterized in that the bearing is installed in each groove To provide.

At this time, according to an additional feature of the present invention, the plurality of grooves formed in the inner lid is preferably formed long in the center direction of the inner lid.

Hereinafter, with reference to the accompanying drawings a preferred embodiment of the lid structure of the electric pressure cooker according to the present invention will be described in detail.

3 is a cross-sectional view showing a state of contact between the inner lid and the ring according to the present invention, Figure 4 is a plan view of the inner lid according to the present invention.

3 and 4, in order to reduce the friction between the inner lid 13 and the ring 15, the inner lid 13 has a plurality of grooves at predetermined intervals in contact with the ring 15. 13A is formed, and each groove 13A is provided with a bearing 18. At this time, the plurality of grooves 13A formed in the inner lid 13 are different from each other in length and width in the longitudinal direction and are formed long in the center direction of the inner lid 13. In addition, the bearing 18 is formed in a cylindrical shape with a size that can freely rotate in the groove (13A).

When the bearing 18 is rotated about the central direction of the inner cover 13, the ring 15 is rotated so that the rotational direction of the ring 15 and the rotational axis of the bearing 18 are always perpendicular to each other. Rotation is smooth.

In the above, the bearing 18 inside the groove 13A rotates about the inner lid 13 center direction as an axis, and the frictional force at the time of rotation is increased by making the contact between the inner lid 13 and the ring 15 in line contact. When the force generated by the pressure inside the inner pot 2 is reduced and transmitted to the ring 15 through the inner lid 13, the force is dispersed.

In the above, by applying the heat-resistant, food-resistant grease which is a lubricant to the groove 13A and inserting the bearing 18, it is possible to further reduce the friction force and prevent wear.

Lid structure of the electric pressure cooker of the present invention as described above to form a groove (13A) in the inner lid 13, inserting the bearing 18 to reduce the friction between the ring 15 to wear It is possible to prevent the occurrence of metal debris due to the effect that can give the user a confidence in the product.

In addition, since the inner pot 2 and the inner lid 13 can be easily performed with a small force when fastening or releasing, there is an effect of providing convenience in use.

Claims (2)

An outer cover coupled to the main body of the electric pressure cooker, a built-in cover for supporting the respective structures forming the lid portion, the inner cover to cover the top of the inner pot while being fixed by the built-in cover, the outside of the outer cover And a pressure adjusting part connected to penetrate the inner lid and adjusting the pressure inside the inner pot, a ring for fastening the inner lid and the inner pot while rotating a predetermined angle, and assembled into the inner lid, and a gap between the inner lid and the inner pot. In the lid structure of the electric pressure cooker including a packing for sealing the, and a ring driving unit for driving the ring when the inner lid and the inner pot is fastened, To reduce the friction between the inner lid and the ring, the inner lid is formed with a plurality of grooves at predetermined intervals in contact with the ring, the lid structure of the electric pressure cooker, characterized in that the bearing is installed in each groove . The method of claim 1, A plurality of grooves formed in the inner lid is a lid structure of the electric pressure cooker, characterized in that formed long in the center direction of the inner lid.