KR100390676B1 - Top plate moving equipment for electricity pressure rice cooker - Google Patents

Abstract

The present invention allows the top plate 18 to absorb the vapor pressure generated during cooking, so that there is no gap between the top cover 6 even if the top plate 18 repeatedly rises for a long time. Its purpose is to be able to maintain the original shape without deformation and departure of the hook lever 70, the structure is the top plate 18 forming the flange 20 around the outer edge, and the Coupling member 29 positioned on the flange 20, the elastic member 31 is installed on the coupling member 29, the elastic member 31 is located on the elastic member 31 and coupled to the coupling member 29 slip The lower cover 34 and the coupling member 29 is installed on the top plate flow apparatus for an electric pressure cooker consisting of a locking member 39 to prevent the lower cover 34 from being separated.

Description

TOP PLATE MOVING EQUIPMENT FOR ELECTRICITY PRESSURE RICE COOKER}

The present invention relates to a top plate flow device for an electric pressure cooker, and in particular, by preventing the top cover from being deformed due to the top plate lifting by the steam pressure generated during cooking, and also by preventing the deformation and detachment of the hook lever. The present invention relates to a top plate flow device for an electric pressure cooker that can be kept locked continuously.

In general, the top plate used in an electric pressure cooker is always pressurized by water vapor generated when the contents of the oven are heated. When the steam pressure increases rapidly, a gap occurs in the top cover and a hook lever Is deformed or departed.

Therefore, in order to solve such general problems, a conventional technique of allowing the top plate to flow up and down on an oven has been applied.

Looking at the prior art of the Republic of Korea Patent Application Publication No. 98-58139, which is a prior application as follows.

First, an auxiliary lid is inserted into an auxiliary lid hole provided inside the lid body, and an inner cylinder having an opening bent outward is provided below the auxiliary lid, and a sealing member having a sealing function is provided inside the outer peripheral portion of the auxiliary lid.

And the outer circumference of the auxiliary lid hole is installed a leaf spring coupled to the auxiliary lid.

Referring to the operation of the conventional technology configured as described above is as follows.

First, when the lid is closed after filling the contents to be cooked in the inner cylinder, the auxiliary lid is placed in the upper portion of the inner cylinder and the sealing member is in a state of being in close contact with the inner peripheral surface of the inner cylinder.

In this state, when the heater is heated, the contents are properly cooked by the transferred heat, and at the same time, the contents are heated to generate steam, thereby rapidly increasing the internal pressure.

Therefore, the auxiliary lid is pushed upward due to the pressure, and the auxiliary lid rises while absorbing the resistance of the leaf spring, thereby absorbing the sharply increased pressure.

Subsequently, when the steam pressure of the inner cylinder increases, the safety valve provided in the auxiliary lid operates to lose the steam to the outside, so that the inner pressure of the inner cylinder is properly maintained.

On the other hand, when the cooking operation is completed, the pressure of the inner cylinder is lowered, and the auxiliary lid is returned to its original position by the elastic force of the leaf spring because the pressure of the inner cylinder is gradually lowered.

The above-described conventional technique is a means of elastically pressurizing the auxiliary lid raised by the steam pressure generated in the inner cylinder by means of the leaf spring, if the auxiliary lid is repeatedly lifted for a long period of time, the leaf spring becomes severe fatigue and eventually short There is a problem.

The present invention allows the top plate to absorb the pressure of the steam generated during cooking by lifting up and down by the coil spring, so that the top plate can be maintained in its original shape without being damaged even if the top plate is repeatedly lifted for a long time. There is a purpose.

Another purpose is to keep the hook lever locked even if the steam pressure of the oven increases.

The present invention for realizing this, the top plate forming a flange around the outer edge, the coupling member positioned on the flange, the elastic member provided on the coupling member, the coupling is located on the elastic member The lower cover is coupled to the member so as to slip, and the engaging member is installed on the coupling member to prevent the lower cover from being separated.

1 is a cross-sectional view of an embodiment of the present invention installed in a rice cooker.

2 is an exploded perspective view showing an embodiment of the present invention.

Figure 3 is a state in which a part of the cooker constituting the present invention cut away.

Figure 4 (a) (b) is an operating state diagram of the present invention.

5 is an exploded perspective view showing another embodiment of the present invention.

Figure 6 (a) (b) is an operating state diagram showing another embodiment of the present invention.

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

2: rice cooker 4: body 6: top cover

8: Oven Case 10: Main Heater 12: Thermistor

14: oven 15, 20: flange 16: hinge pin

18: top plate 22: home 24: packing

26: mass 28: pad 30, 44, 46, 48: boss

32: coil spring 34: lower cover 36: chin

38, 60: Hole 40: Screw 42: Top heater

50: screw shaft 52: handle 54: balance valve

1 and 2, the rice cooker 2 is divided into a body 4 and a top cover 6, and an oven case 8 having a recessed shape inside the body 4 is shown in FIGS. In the center of the oven case 8, the main heater 10, which is a heating element, is installed in a disc shape, and the thermistor 12 for sensing a temperature is installed in the center of the main heater 10.

In addition, an oven 14 configured to contain contents at the time of cooking is installed inside the oven case 8 while forming a flange 15 at an upper end thereof in the same recessed shape as the oven case 8.

The top cover 6 is coupled to the hinge pin 16 on the upper portion of the body 4 to be opened and closed while rotating.

The top plate 18 is installed inside the top cover 6 so as to prevent the leakage of water vapor generated from the contents while being placed on the flange 15. The flange 20 is formed at the edge thereof, and the flange 20 is installed. A groove 22 is formed along the periphery of the lower surface, and a packing 24 having a sealing function is installed in the groove 22.

The packing 24 has a mass 26 buried along the groove 22, and the lower portion of the mass 26 is a flexible pad 28 in close contact with the inner circumferential surface of the oven 14 to prevent water vapor pressure outflow It is integrally formed vertically toward the lower direction.

In addition, a plurality of coupling members 29 are disposed at predetermined intervals on the flange 20, and the coupling members 29 are bosses 30 installed vertically on the flange 20. It is composed.

An elastic member 31 is positioned on the coupling member 29, and the coil spring 32 constituting the elastic member 31 is coupled to the outer circumference of the boss 30.

In addition, a lower cover 34 having the same shape as the oven 14 is fixedly installed inside the top cover 6 on the top plate 18. 36) is formed.

An upper end portion of the coil spring 32 is positioned below the jaw 36, and the jaw 36 has a plurality of holes 38 slidingly coupling the boss 30.

In addition, a screw 40, which is a locking member 39 for preventing the lower cover 34 and the boss 30 from being separated, is fastened to the upper end of the boss 30. At this time, the head of the screw 40 The part is installed in surface contact with the upper surface of the jaw 36.

On the other hand, the inside of the flange 20 is provided with a top heater 42 for heating the upper portion of the contents filled in the oven 14, and a plurality of bosses (44, 46, 48) located vertically.

The screw shaft 50 is coupled to the boss 44, and the handle 52, which can be held by the user by the hand, protrudes from the center of the top cover 6 so as to be lifted and raised at the upper portion of the screw shaft 50. While slidingly coupled.

Along with this, another boss 46 installed on the top plate 18 is provided with a balance valve 54 for keeping the internal pressure of the oven 14 constant, and one side of the balance valve 54 is provided with an oven. A safety valve 56 is provided to prevent the pressure in 14 from rising sharply.

Another boss 48 installed on the top plate 18 is fixedly installed by a screw 40 to which a locking wheel 58 is fastened, and a hole 60 penetrated at one end of the locking wheel 58. The locking wheel 58 is provided, and the screw shaft 50 and the balance valve 54 are loosely coupled to each other.

As shown in FIG. 3, the locking lever 62 defining the rising range of the top plate 18 and the locking wheel 58 includes a locking pin 64 that forms a pivot center in the center and is provided on the flange 20. The front end of the locking lever 62 is installed while being inserted into the hole 60 of the locking wheel 58.

At this time, the locking pin 64 is rotatably coupled to the bracket 66 installed on one side of the lower cover 34.

On the other hand, the upper end of the lower cover 34 is coupled to the front end of the hinge spring 68 to provide an elastic force, the rear end of the hinge spring 68 is coupled to the hinge pin 16 installed in the body (4). .

The hook lever 70 for intermittent opening and closing of the top and the top cover 6 is rotatably positioned while being protruded.

Referring to the operation of the present invention configured as described above are as follows.

First, when the hook lever 68 is pressed to open the top cover 6, the top cover 6 is opened while rotating about the hinge pin 16 by the elastic force of the hinge spring 68. 18), the locking wheel 58, the lower cover 34, etc. are moved together.

In this state, the contents to be plated in the oven 14 are filled, and the open top cover 6 is rotated about the hinge pin 16 as opposed to the above to return to the original position. The lever 70 maintains the locked state so that the top cover 6 is not opened.

At this time, the lower surface of the flange 20 of the top plate 18 is in contact with the upper end of the oven 14, and at the same time, one surface of the pad 28 constituting the packing 24 is provided on the inner circumferential surface of the oven 14. It is in a state of being in close contact.

When the cooker 2 is operated in the above state, the main heater 10 and the top heater 42 are heated at the same time, thereby heating and cooking the contents filled in the oven 14.

As such, when the contents filled in the oven 14 are heated, pressure is generated by the steam, and the top plate 18 is primarily applied by the steam pressure to rise as shown in FIGS. 4A and 4B. do.

Therefore, one surface of the pad 28 is in a state of sliding while being in close contact with the inner circumferential surface of the oven 14 and maintaining a sealed function, and the lower portion of the flange 20 is spaced apart from the upper end of the oven 14. do.

Subsequently, the boss 30 is raised together by the top plate 18 to press the spring 32 with the same force as the vapor pressure, and the outer peripheral surface of the boss 30 is the jaw 36 of the lower cover 34. Sliding movement along the hole 38 formed in the), and the head portion of the screw 40 coupled to the upper end of the boss 30 is spaced apart from the upper surface of the jaw 36 of the lower cover 34.

At the same time, the handle 52 coupled to the upper end of the balance valve 54 and the screw shaft 50 which rises together with the top plate 18 protrudes from the upper part of the top cover 6.

The locking lever 62 having the leading end portion inserted into the hole 60 by the locking wheel 58 ascending with the locking wheel 58 rotates in the upward direction, thereby causing the locking lever 62 to rotate. The rear end of the engagement is stopped by the flange 15 of the oven (14).

Therefore, the locking lever 62 is no longer rotated, and the rising of the top plate 18 and the locking wheel 58 is stopped.

When the cooking operation is continued in the above state, the pressure inside the oven 14 increases. At this time, while the balance valve 54 operates, the internal pressure can be maintained properly by exhausting water vapor, which is an increase factor of the internal pressure, to the outside. To be able.

When the balance valve 56 does not lose all of the pressure in the oven 14, the pressure inside the oven 14 is properly adjusted as the safety valve 56 is operated as a secondary and exhausts water vapor to the outside. To be maintained.

When the pressure in the oven 14 is kept constant as described above, the top cover 6 maintains its original shape as the top plate 18 is prevented from being deformed.

On the other hand, when the cooking work of the contents in the oven 14 is finished, no further water vapor is generated, and the internal pressure decreases. As a result, the coil spring 32, which has been compressed, is repelled against the external force while the external force is removed. The 18 is lowered to bring the flange 20 into close contact with the upper end of the oven 14.

At this time, one surface of the pad 28 of the packing 24 slides while being in close contact with the inner circumferential surface of the oven 14.

At the same time, the locking wheel 58, the lower cover 34, and the like together with the top plate 18 are lowered and returned to their original positions, and the handle 52 and the balance that protrude above the top cover 6 are balanced. The valve 54 or the like descends to return to its original position.

And the locking lever 62 is inserted into the hole 60 of the locking wheel 58 is lowered to return while rotating around the locking pin 64, the rear end of the locking lever 62 The locked state is released by falling from the flange 15 of the oven 14.

When the above operation is finished, the hook lever 70 is pressed to release the locked state, and the oven 14 is separated from the body to take out the contents.

Meanwhile, another embodiment of the present invention will be described with reference to FIG. 5.

First, a plurality of coupling members 73 are disposed on the flange 74 formed outside the top plate 72 at predetermined intervals, and the coupling members 73 are perpendicular to the flange 74. It consists of a boss 76 is installed so as to, and the slots (78) penetrated along the longitudinal direction are formed on both sides of the boss (76).

Coil springs 82 constituting an elastic member 80 providing an action force to the top plate 72 to be in close contact with the oven 14 is coupled to the outer circumference of the coupling member 73, the coil spring 82 At the upper end, a jaw 86 formed on the outer side of the lower cover 84 is located, and the jaw 86 has a sleeve 88 through which the sleeve 88 coupled to the outer circumference of the boss 76 is slipped. It is formed downward while having a).

At this time, the pin 94, which is a stop member 92 for preventing the sleeve 88 and the boss 76 from being separated, is slid into the slot 78 while being coupled to the hole 90.

Referring to the operation of another embodiment of the present invention configured as described above are as follows.

First, before the oven 14 is heated, as shown in FIG. 6A, the top plate 72 is pushed downward by the repulsive force of the coil spring 82 to be in close contact with the oven 14. ) Is located at the upper end of the slot (78).

In such a state, when the contents filled in the oven 14 are heated, the internal pressure increases by generating water vapor, and the top plate 72 receives the action force primarily by the water vapor pressure, as shown in FIG. 6B. The top plate 72 is pushed up and rises.

Accordingly, the top plate 72 slides the boss 76 in the sleeve 88 while compressing the spring 82 so as to protrude above the lower cover 84.

In this case, the pin 94 is positioned at the lower end of the slot 78.

The present invention has a structure that can absorb the steam pressure generated during cooking while the top plate is raised and lowered, thereby maintaining the original shape without being damaged even if the top plate is repeatedly elevated for a long time.

Another effect is that the top plate absorbs water vapor pressure, which keeps the hook lever locked, and at the same time maintains a constant gap between the top cover and the body, improving reliability.

Claims (8)

delete delete delete delete delete A top plate 72 forming a flange 74 along the circumference of the edge, Coupling member 73 is installed on the flange 74, and An elastic member 80 installed on the coupling member 73; A lower cover 84 positioned on the elastic member 80 and slip-coupled to the coupling member 73; It includes a stop member 92 installed on the lower cover 84 and the coupling member 73 to prevent separation from each other, The stop member 92 is a top plate flow device for an electric pressure cooker, characterized in that consisting of a pin (94). The method of claim 6, The coupling member 73 is composed of bosses 76 formed on both sides of the slots 78 penetrated in the longitudinal direction, respectively, and a sleeve 88 for slipping on the outer circumference of the boss 76 penetrates on both sides. While having a hole 90 is formed downward in the jaw 86 of the lower cover 84, the pin 90 is coupled to the hole 90 is located in the slot 78 Top plate flow device for pressure cooker. A top plate 72 forming a flange 74 along the circumference of the edge, Coupling member 73 is installed on the flange 74, and An elastic member 80 installed on the coupling member 73; A lower cover 84 positioned on the elastic member 80 and slip-coupled to the coupling member 73; It includes a stop member 92 is installed on the lower cover 84 and the coupling member 73 to prevent separation from each other, The coupling member 73 is composed of bosses 76 formed on both sides of the slots 78 penetrated in the longitudinal direction, respectively, and a sleeve 88 for slipping on the outer circumference of the boss 76 penetrates on both sides. While having a hole 90 is formed downward in the jaw 86 of the lower cover 84, the pin 90 is coupled to the hole 90 is located in the slot 78 Top plate flow device for pressure cooker.