KR20030010896A - Apparatus for opening closing lid of pressure cooker - Google Patents

Abstract

PURPOSE: A lid opening and closing device of a pressure cooker is provided to certainly seal a lid for a cooker body and to simply separate the lid by a movement of a locking arm. CONSTITUTION: A locking arm(30) is arranged in a cross shape on a lid body(20). The locking arm comprises a hanging piece(32) to be hung and released from a hanging sill of a cooker body, an expansion supporting pin(34) and a guide pin(36). A locking arm holder(40) is installed on the lid body to stably move the locking arm and equipped with a guide rail(42) to be inserted by the expansion supporting piece and a straight long hole(43) to be penetrated by the guide pin. A rotation control plate(50) is elastically supported by a spring(58), formed a movement adjusting slot(52) of the locking arm to forcibly move the guide pin and equipped with a protrusion fixing slot(56). An external cover(70) covers the rotation control plate and the holder of the locking arm. The external cover is integrally fixed with the lid body by a handle fixing rod of a handle. A fixing protrusion(62) is inserted in the protrusion fixing slot of the rotation control plate to interlock the rotation control plate when the handle is rotated. Thereby, the locking arm is moved exactly and the lid is certainly opened and closed.

Description

Apparatus for opening closing lid of pressure cooker}

The present invention relates to an apparatus for opening and closing the lid with respect to the main body of the pressure cooker, and more particularly, the pressure cooker to open or close the lid from the cooker body by a simple rotation operation of the handle that also functions as a handle of the lid. Relates to a lid opening and closing device.

Pressure cooker is one cooking utensil to cook a variety of cooking or to increase the pressure inside the cooker by using a heating means such as electricity or gas. In addition, such a pressure cooker should be made of a good sealing and opening operation of the lid to the cooker body in order to prevent the loss of internal pressure and maintain the high pressure.

Conventionally, in view of the above points, each of the cooking jaw main body and each rim of the lid is formed at a certain interval, and the locking jaws are formed to cross the locking jaws when closing the lids, and then the lid is slightly turned to one side to make the locking jaws In order to handle each other and to open the lid, on the contrary, the operation is configured to release the locking force of each locking jaw by turning the lid. On the contrary, the opening and closing operation of the lid is very cumbersome, and the hooking jaw must be formed separately on each rim. Various problems have arisen such as the hassle and the formation of the space around the edges by each black and white jaw, which causes the sealing force of the packing to be weakened. Various devices are being devised for.

As an example, in Korean Utility Model Registration No. 202778 granted to Jeonhan Industrial Co., Ltd., a rotating plate having a guide groove for flat cam motion is rotated by lifting and rotating the opening / closing handle installed at the center of the lid. At the same time, as the guide pin of the locking member inserted into each guide groove is moved up and down by the flat cam motion of the guide groove, the engaging piece formed on one side around the hinge is provided on the lower side of the flange provided on the upper main surface of the cooker body. The "opening and closing device of the pressure cooker lid" is configured to be fitted or released therefrom, but the guide pin of the locking member inserted into the guide groove which is flat eccentric movement is frequently bent or broken by frequent opening and closing of the lid. Concerns and uncertainty due to the opening and closing operation of the locking member simply by the inclined guide groove In addition, there is a problem that the locking and releasing structure of the locking member is very coarse and complicated.

On the other hand, Utility Model Registration No. 219195 granted to Sungkwang Electronics Co., Ltd. has a central rotary gear coupled to the central portion of the lid, and a pinion and a rack disposed on the main surface of the lid to convert rotational force into linear reciprocating movement force. The locking arm having a portion is moved in a straight line by receiving the rotational force of these gears to disclose a "electric pressure cooker lid lock" of the configuration to lock or open the cooker body and the lid firmly with the locking arm, but the use of the gear Due to the increase in manufacturing cost, increase in the volume of the lid according to the installation of several gears, concerns about malfunction due to reverse rotation of the gear when the external force is applied, and the complexity of the structure due to the use of the gear has been raised.

In addition, according to the "opening and closing device of the electric pressure cooker" of Korean Utility Model Publication No. 2001-564 filed by Bubang Techron Co., Ltd., the interlocking member of the interlocking member is operated by operating the handle installed in the upper center of the cooker lid so as to rotate and move up and down The locking lever connected to the other end is rotated about the hinge shaft of the pressing part by lifting or lowering the guide lever connected to the handle with respect to the lever, so that the locking part is hooked or released on the catching jaw of the cooker body. As can be seen, this is a technique in which the locking lever is rotated about the hinge axis by the interlocking operation of the guide lever. Therefore, when the linking action of the guide lever is uncertain and each connection part is loosely loosened by frequent opening / closing action, it is difficult to reliably rotate the lock lever, and also the problem of failing to maintain the tight sealing force of the lid by the incomplete rotation operation. There is concern.

Accordingly, the present invention is to solve such a conventional problem, an object of the present invention is to close the lid to the cooker body by closing the lid securely by the movement of the locking arm which is simple in structure and interlocked with the handle and sealed. At the same time, it provides a lid opening and closing device of a pressure cooker for easy separation.

1 is an exploded perspective view of a lid opening and closing device according to the present invention;

2 is a partial cross-sectional side view of the cut assembly in the unlocked state of the lid according to the invention,

Figure 3 is a plan view of the unlocked state of the lid in the state the outer cover is removed,

4 is a partial cross-sectional side view of the cut assembly in the locked state according to the present invention;

5 is a plan view of the lid is locked in the state that the outer cover is removed in accordance with the present invention,

6 and 7 are plan views showing a locking and releasing state of a lid in a state where the outer cover is mounted according to the present invention.

※ Explanation of symbols on main parts of drawing ※

10: cooker main body 12: hanger

20: lid body 22: peripheral coupling portion

24: Packing 30: Locking Arm

32: locking piece 34: extension support piece

36: guide pin 40: locking arm holder

42: guide rail 43: straight hole

49: through hole 50: rotating operation panel

52: locking arm retract manipulator 52a: open position

52b: closing position 54: through hole

56: projection fixing hole 58: spring

60: handle 62: fixing protrusion

64: handle fixing rod 70: outer cover

72: the operator

Technical features of the present invention for achieving the above object, the cooker body formed by uniformly bending the hook edge around the upper opening; In constructing a lid opening and closing device of the pressure cooker consisting of a lid body in which the packing is fitted to the peripheral coupling portion for opening and closing the opening peripheral opening of the cooker body: disposed in the shape of a cross approximately on the upper surface of the lid body, A locking arm provided with an extension piece and a guide pin for linearly moving the locking piece and the locking piece which are mutually locked and released on the locking jaw; A locking arm holder each having a cover rail mounted on an upper surface of the lid main body for a stable movement operation of the locking arm, and a guide rail through which the extension support piece is inserted and a straight hole through which the guide pin is installed; A rotating operation plate which is elastically supported by a spring to the upper portion of the locking arm holder and has a locking arm retreat operation hole for forcibly retreating the guide pin penetrated by the straight hole, each of which is provided with a projection fixing hole; An outer cover which is integrally fixed to the lid main body by a handle fixing rod of a handle which covers the pivoting operation plate and the locking arm holder and is seated in a pivoting operation hole formed as a center part; In the pivoting operation of the handle is a point consisting of the fixing projections which are interfitted with the projection fixing hole of the rotation operation panel for interlocking operation of the rotation operation panel.

Hereinafter, described in detail with reference to the accompanying drawings another preferred embodiment of the present invention.

Figure 1 is an exploded perspective view showing a lid opening and closing device structure of the present invention, Figure 2 is a side view cut part of the combined state thereof.

As shown in FIGS. 1 and 2, the rim 12 is bent outwardly around the top opening of the rice cooker body 10, and the hoop 12 is uniformly divided without being divided before the periphery of the opening. Formed.

As the lower peripheral coupling portion 22 of the lid body 20, the packing 24 for seating on the hook 12 of the cooker body 10 to seal the upper edge of the opening is detachably fitted.

And the upper surface of the lid body 20 to at least four locking arms 30 formed of the same type of engaging piece 32 and the extended support piece 34 to surround the outer peripheral surface of the peripheral coupling portion 22 to correspond to each other Each of these locking arms 30 is disposed by a locking arm holder 40 formed by splitting the guide rail 42 into which the extended support piece 34 is inserted and supported. The brackets 44 formed on the predetermined guide rails 42 are fastened to each other by holes 46 formed in the lid body 20, and then fastened by fastening members 48 such as bolts.

On the other hand, when the locking arm 30 is fixed by the locking arm holder 40, the guide pin 36 formed by the extension support piece 34 penetrates through the straight hole 43 formed in the longitudinal direction of each guide rail 42. It is inserted. Therefore, the locking arm 30 is a guide pin 36 is moved in a straight line only within the range of the straight hole 43.

And the upper side of the locking arm holder 40 is provided with a pivoting operation plate 50 for advancing and manipulating the respective locking arms 30, which is the respective locking arms exposed to the upper through each straight hole 43 The locking arm retracting operation hole 42 into which the guide pin 36 of the 30 is inserted is eccentrically curved at regular intervals, and the handle 60 to be described later around the center of the through hole 54. The projection fixing hole 56 to which the fixing projection 62 is fitted is formed, respectively.

On the other hand, the reason why the closed operation part 52a and the open operation part 52b of the locking arm retreat operation hole 52 formed in the rotation operation panel 50 are eccentrically curved so as to have different circumferences is defined by the rotation of the operation panel 50. The guide pins 36 of the respective locking arms 30 penetrated by the reverse rotation force are easily pushed or pulled along the locking arm retraction manipulator 52 to facilitate smooth retraction of the locking arm 30. To lose.

And the rotation operation panel 50 is elastically installed with a spring 58 installed to pass through the through-hole 49 of the locking arm holder 40 in a state that one end is supported with respect to the lid body 20 as shown in FIG. Lose.

A locking arm holder 40 and an outer cover 70 for covering the remaining portions other than the locking piece 32 of the locking arm 30 are mounted to the upper portion of the rotation operation panel 50, and the outer cover ( 70 is a penetrating hole 54 of the pivoting operation plate 50 and a locking arm holder having a handle fixing rod 64 inserted through the central portion of the handle 60 seated in the pivoting operation hole 72 formed at the center portion. The through holes 49 and the springs 58 of the 40 are sequentially penetrated, respectively, and fixed together with the lid body 20 by fastening to the fixing bolt 66 at the lower side of the lid body 20. The grooves 74 formed as the outer circumferential surface are assembled to be aligned with the locking arm holder 40 to prevent left and right flow.

Meanwhile, the handle 60 seated on the pivoting operation hole 72 of the outer cover 70 by the handle fixing rod 64 has a fixing protrusion 62 formed at the lower surface thereof. They are fitted to each of the projection fixing holes 56 of the plate 50, and their fitted state is always maintained firmly by the reaction force of the spring 58 supporting the rotating operation plate 50.

And the spring 58 which supports the rotation operation board 50 is elastically supported by the handle fixing rod 64 which penetrates into it.

The lid opening and closing state of the present invention configured as described above will be described with reference to FIGS.

First, Figure 2 and Figure 3 is a state in which the locking force of the lid is released, in this case, the rotation of the interlocking operation by the locking of the fixing projection 62 and the projection fixing hole 56 by the rotation operation of the handle 60 When the operating plate 50 is rotated in the direction of the arrow A, at this time, each guide pin 36 of the locking arm 30 is forcibly pushed by the rocking arm retracting operation hole 52 formed with an eccentric curve, and is rotated for example. As it is moved to the position of the open operation part 52b spaced apart from the center through hole 54 of the operation panel 50 and moved backward in a straight line by the straight slot 43 of the locking arm holder 40, The locking arm 30 is also retracted in a straight line and each locking piece 32 is released from the locking frame 12 of the cooker body 10 as shown in FIG.

On the contrary, when the lid is to be closed with respect to the cooker main body 10, the handle 60 rotates in the direction of the arrow B in FIG. 5, and the rotation operation panel 50 interlocked with the cover 60 rotates in the same direction. The guide pin 36 of the locking arm 30 is forcibly pulled and operated by the locking arm retracting manipulator 52 formed by the eccentric curve, for example, about the center through hole 54 of the pivoting operation panel 50. At the same time as the operation is moved to the adjacent closed position portion 52a and moved forward in a straight line along the straight hole 43 of the locking arm holder 40, the locking arm 30 is also moved forward in a straight line and each engaging piece ( 32) again as shown in Figure 4, the operation is latched on the hook frame 12 of the cooker body 10 is to be in the closed state.

Accordingly, the locking piece 32 of the locking arm 30 is inserted into the locking arm retraction manipulator 52 by the rotation operation of the rotation operation plate 50 interlocked with the rotation operation of the handle 60. The guide pin 36 of the 30 is pushed back and forth within the range of the straight slot 43 of the locking arm holder 40 so as to be caught by the hook 12 of the cooker body 10 of the locking piece 32. And it is released is easy to disassemble the assembly of the lid.

On the other hand, Figure 6 and Figure 7 shows the movement operation state of the locking piece 32 of each locking arm 30 in the state that the outer cover 70 is mounted with respect to the lid body 20, only the handle 60 is visible As well as the remaining opening and closing member is completely covered, it can be easily seen that each engaging piece 32 is moved forward and backward in response to the rotation operation of the handle 60.

As described above, according to the present invention, each locking arm provided with a engaging piece is rotated in a straight line with respect to the locking arm holder by a rotation operation plate which is interlocked and operated by a rotation operation of the handle. The opening and closing structure of the lid for the body is simple, but it has the effect of being able to open and close securely.

Although the present invention has been described with reference to the accompanying drawings, the present invention is not limited thereto, but many modifications and changes can be made without departing from the scope of the following claims.

Claims (1)

A rice cooker body 10 in which the hook 12 is uniformly bent around the upper opening; In constructing the lid opening and closing device of the pressure cooker consisting of a lid body 20, the packing 24 is fitted to the peripheral coupling portion 22 to open and close the opening peripheral portion of the cooker body 10: It is arranged in a cross shape approximately on the upper surface of the lid body 20, the engaging piece 32 which is interlocked and released from the engaging frame 12 of the cooker body 10, and the extension support piece for linear movement 34 And a locking arm 30 having a guide pin 36; The guide rail 42 and the guide pin 36 through which the extension support piece 34 is inserted and installed while being covered and mounted on the upper surface of the lid main body 20 for stable movement operation of the locking arm 30 are installed. Rocking arm holders 40 each having a straight hole 43 to be formed; The locking arm retracting manipulator 52 for elastically supporting the guide pin 36 which is elastically supported by the spring 58 to the upper portion of the locking arm holder 40 and penetrated by the straight hole 43 is forcibly operated. A rotatable operation plate 50 each having an eccentric curvature so that the dog and the closed position portions 52a and 52b are positioned on different circumferences, and the projection fixing hole 56 is provided; The lid body is covered by the handle fixing rod 64 of the handle 60 which covers the pivoting operation plate 50 and the locking arm holder 40 and is seated on the pivoting operation hole 72 formed at the center. An outer cover 70 fixedly installed integrally with 20; It characterized in that it consists of a fixing projection 62 protruding to the lower portion of the handle to interlock and interlock with the projection fixing hole 56 of the rotation operation panel 50 during the rotation operation of the handle (60) Lid opening and closing device of pressure cooker.