KR102003378B1 - steam drain apparatus for pressure cooker - Google Patents

Abstract

The present invention relates to a steam discharge apparatus for a pressure rice cooker, capable of reducing the thickness by adopting a flat weight and facilitating separation and cleaning of a weight assembly for cleaning. The steam discharge apparatus for a pressure rice cooker, which is formed to be dented in a proper position of a lid of a pressure rice cooker and is combined with a weight assembly mounting groove having a steam discharge flow path protruding therein to be separated, comprises: a flat weight having a thickness-to-diameter ratio greater than or equal to 1:2, having one or more steam discharge holes vertically formed thereon, and placed on an outlet of the steam discharge flow path; a weight storage housing having a discharge flow path through-hole formed in a central portion thereof through which the steam discharge flow path passes, and formed of a housing having an opened upper portion to store the flat weight; and a cover having one or more steam discharge holes, and stored in and combined with the weight assembly mounting groove while being combined with the weight storage housing. According to the present invention, a descent prevention protrusion is formed inside the weight storage housing to prevent excessive descent of the flat weight. In addition, one or more vertical guide rods are formed inside the weight storage housing, and a guide rod through-hole through which the vertical guide rods pass is formed in the flat weight.

Description

Steam drain apparatus for pressure cooker

The present invention relates to a steam discharge device of the pressure cooker, in particular to adopt a flat weight to reduce the thickness and to the steam discharge device of the pressure cooker to facilitate the separation and cleaning of the weight assembly for cleaning. It is about.

In general, the electric pressure cooker is a cooking utensil for cooking food that is not boiled well at normal pressure in a short time by increasing the pressure in the pot by heating the pot in an enclosed space by an electric heater.

1 is a schematic side cross-sectional view of a general electric pressure cooker. As shown in FIG. 1, a general electric pressure cooker has an outer pot 4 built into the main body 2, and an inner pot 6 for cooking and keeping warm inside the outer pot is installed, and the outer pot 4 is surrounded by the outer pot 4. And various heaters (not shown) for heating the inner pot 6.

In addition, the lid 12 is installed on the open upper side of the main body 2 so as to be opened and closed, and the inner pot lid 14 covering the inner pot 6 is integrated with the lid 12 on the opened upper side of the inner pot 6. It is installed so that opening and closing is possible. Around the inner pot lid 14 and the inner pot 6, the rotating plate 8 which is coupled to each other so that the lid 12 is closed to the body 2 and the inner pot lid 14 is sealed to the inner pot 6 is installed. Therefore, as the inner pot 6 is heated, the pressure inside the inner pot 6 also increases.

On the other hand, between the lid 12 and the inner pot lid 14 in order to prevent the pressure inside the inner pot 6 from excessively rising by the heating of the inner pot 6 to the outside steam according to the pressure inside the inner pot 6 A steam discharge device for discharging gas is installed.

The steam discharge device includes a steam discharge passage 22 and an automatic steam discharge passage 32 formed to communicate between the lid 12 and the inner pot lid 14. Weight end 24 is coupled to the end of the steam discharge passage 22 so that the flow, the steam discharge passage 22 is opened or closed by the weight and the steam pressure of the weight (24).

In the middle of the automatic steam discharge passage 32, the automatic steam discharge passage 32 is opened and closed by an opening / closing member 36 which is operated by an electrically driven solenoid valve 34.

As such, the steam discharge passage 22 and the weight 24 allow the inner pot 6 to be maintained at a constant pressure during cooking, while the automatic steam discharge passage 32 and the solenoid valve 34 are finished cooking. The residual pressure inside the inner pot 6 is discharged to the outside.

2 and 3 are a side cross-sectional view and an exploded perspective view specifically showing a widely used configuration of the steam discharge device of the electric pressure cooker disclosed in the prior art 1 described later. 2 and 3, the inner pot 10 is installed inside the main body (not shown), and the lid 30 is installed to open and close the upper surface of the main body. The inner pot 10 is installed on the upper surface so that the inner pot lid 90 can be opened and closed, and when the lid is closed, the inner plate 10 and the inner pot lid 90 are installed together so that the rotating plate 20 is installed together, and steam or rice is A steam discharge device that can be safely discharged is installed between the lid 30 and the inner pot lid 90.

Specifically, the steam discharge passage 80 and the automatic steam discharge passage 100b from which steam or rice are discharged are formed at close positions. The steam discharge passage 80 is formed in the vertical direction, and a pressure weight 70 of a predetermined weight, for example, 70 g is placed on the end thereof. The automatic steam discharge passage 100b is formed to be bent, and the opening / closing member 100a for opening and closing the solenoid valve 100 and the automatic steam discharge passage 100b is elastically supported in the middle of the passage.

In the above-described configuration, when power is applied to the solenoid valve 100, the opening and closing member 100a is operated by the solenoid valve 100 to block the automatic steam discharge passage 100b, and when the power is cut off, the opening and closing member 100a. Is operated to open the automatic steam discharge passage 100b.

On the other hand, the lower cover 210 may be installed to cover the automatic steam discharge passage (100b), the lower cover 210 may be mounted on the sealing member 60 installed at the end of the automatic steam discharge passage (100b). . In this case, the lower cover 210 may be detachably installed around the end of the automatic steam discharge passage 100b, and a communication hole 211 may be provided at a portion of the lower cover 210 to cover the end of the automatic steam discharge passage 100b. This can be formed.

Here, the portion other than the communication hole 211 may be formed lower than the portion covering the end of the automatic steam discharge passage 100b, thereby allowing easy discharge of steam or rice.

An intermediate cover 230 is inserted between the upper cover 220 and the lower cover 210. The steam that loses energy while hitting an inner surface or a plurality of partitions between the lower cover 210 and the intermediate cover 230 is an intermediate cover. The steam is discharged through the discharge hole 232, the water or rice remaining inside is stored in a separate storage unit (not shown) through the drain hole 212 of the lower cover.

In addition, the mounting cover 30b is formed in the lid 30 to prevent the lower cover 210 and the upper cover 220 from being mounted so as to protrude excessively from the tubular lid 30. Inside the mounting groove 30b, the steam discharge passage 80 and the automatic steam discharge passage 100b are formed to protrude, and the lower cover 210 and the upper cover 220 are installed in the mounting groove 30b to be detachable. do.

On the other hand, when the steam or rice discharged from the automatic steam discharge flow path (100b) is discharged through the drain hole 212 of the lower cover, the mounting groove (30b) to be guided to a separate storage unit (not shown) An auxiliary drain hole 30a is formed below the drain hole 212 of the cover. Here, the drain hole 212 of the lower cover is formed lower than the portion covering the end of the automatic steam discharge passage (100b) so that steam and rice can be easily discharged.

A plurality of upward partition walls 213 may be formed on an inner bottom of the lower cover 210, and an upper cover 220 having an empty inner side may be detachably coupled to an upper portion of the lower cover 210. The steam discharge hole 221 of the upper cover is in communication with the steam discharge hole 232 of the intermediate cover can be discharged steam. Of course, the vapor discharge hole 221 of the upper cover and the vapor discharge hole 232 of the intermediate cover is preferably formed at least one or more so that the steam can be easily discharged.

In addition, an intermediate cover 230 is inserted between the upper cover 220 and the lower cover 210, and a plurality of downward partition walls 231 are formed in the intermediate cover 230. The partitions 213 and 231 of the lower cover and the middle cover are formed to intersect each other to maintain an appropriate interval up and down. The plurality of partitions 213 and 231 intersected up and down are zigzag to steam of high temperature and high pressure. A guided discharge flow path can be formed.

Here, the inner packing 130 and the outer packing 140 are inserted into the inner and outer partitions in which the upper cover 220 and the lower cover 210 are coupled to each other so that the steam is not leaked to the outside of the steam discharge device. desirable.

However, according to the conventional steam discharge device for a pressure cooker as described above, the weight of the weight is made in the shape of a cap and uses two kinds of materials, synthetic resin and metal, and is separated by high pressure steam when tightening the steam discharge passage In order to prevent this problem, the flow structure through the screw connection is adopted, and there is a problem of not only a large number of processing man-hours (processing cost) but also a relatively large amount of steam exhaust noise from the outside of the weight.

Moreover, in order to clean the steam discharge passage when it is blocked, it is necessary to release the screw coupling between the steam discharge passage and the weight, there is a problem that the process is very cumbersome.

In addition, in order to prevent the accumulation of rice between the lower cover and the upper cover to block the communication hole or drainage hole, or the growth of bacteria due to this, the upper cover and the lower cover need to be periodically cleaned to clean the inside. There was a problem that it was not easy to separate.

On the other hand, in order to solve some of the problems of the prior art described above, a steam discharge device having a structure in which a weight is made of metal steel and placed on an end of a steam discharge passage has been proposed as the prior art 2 described below. However, in order to adjust the weight of the steel ball in the prior art 2 to about 70g, the diameter of the steel ball is about 30 mm, thereby increasing the overall height of the rice cooker.

In view of this, the prior art 3 proposes a steam exhaust device that reduces the weight of steel balls but compensates for the reduced weight by using the elastic force of the compression spring. However, in the steam discharging device of the prior art 3, it is difficult to precisely adjust the elastic force of the spring as desired, and when the elastic force of the spring is not adjusted as desired or the elastic force decreases due to prolonged use, steam is discharged at a pressure higher or lower than the set pressure. Thereby, there was a problem that the cooking performance was lowered.

Prior art 1: Korean Patent Publication No. 10-2009-0019332 (name of the invention: steam discharge device of the electric pressure cooker)

Prior art 2: Korean Laid-Open Patent Publication No. 10-2009-0067651 (name of the invention: electric pressure cooker lid having a spherical pressure weight)

Prior Art 3: Korean Laid-Open Patent Publication No. 10-2018-0003398 (name of the invention: steam discharge device of the electric pressure cooker)

The present invention has been made to solve the above problems, by adopting a flat weight, it is possible to reduce the thickness and the steam discharge device of the pressure cooker to facilitate the separation and cleaning of the weight assembly for cleaning For the purpose of providing it.

In order to achieve the above object, the present invention is formed in a depression of the pressure cooker lid is formed in the steam discharge device of the pressure cooker coupled to be detachably coupled to the weight assembly seating groove in which the steam discharge passage protrudes therein, A ratio of the diameter is 1: 2 or more, and one or more steam discharge holes are formed up and down, and the flat weight is placed on the discharge port of the steam discharge passage; A discharge passage through which the steam discharge passage passes is formed at a central portion thereof, and includes a weight opening housing for storing the flat weight and one or more steam discharge holes, the weight opening being formed of an enclosure having an upper opening. It characterized in that it comprises a cover that is received and coupled to the weight assembly seating groove coupled to the sieve.

In the above-described configuration, the weight preventing enclosure is formed inside the weight housing to prevent the falling of the flat weight.

At least one vertical guide rod is formed in the weight housing, and the flat rod has a guide rod through hole through which the vertical guide rod passes.

The flat weight has a lower flat portion formed flat on the lower edge, a central inclined portion formed to converge upwardly from the lower flat portion toward the center, and an upper flat portion extending toward the center portion from the central inclined portion and formed flat. The center of gravity is formed in the lower space of the upper plate portion, one or more vapor discharge holes are formed in the upper plate portion up and down, and the guide rod through hole is formed in the lower plate portion.

According to the steam discharge device of the pressure cooker of the present invention, by adopting a flat metal weight of a single metal material, it is possible to reduce the manufacturing maneuver and reduce the thickness while lowering the unit cost, the user by adopting a structure that can be easily disassembled and combined Makes cleaning the inside easier.

In addition, by forming steam outlet holes in the flat weights located directly above the steam discharge channel, steam can be discharged immediately and consequently by reducing the discharge resistance, thereby stably shaking the flat weights to reduce noise. There is a number.

1 is a schematic side cross-sectional view of a general electric pressure cooker.
Figure 2 and Figure 3 is a side cross-sectional view and exploded perspective view showing in detail the widely used configuration of the steam discharge device of the conventional electric pressure cooker.
Figure 4 is a longitudinal sectional view of the steam discharge device of the pressure cooker according to a preferred embodiment of the present invention.
FIG. 5 is an exploded perspective view of the steam discharge device shown in FIG. 4 as viewed downward; FIG.
6 is an exploded perspective view of the steam discharge device shown in FIG. 4 viewed from above;

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the steam discharge device of the pressure cooker of the present invention.

Figure 4 is a longitudinal sectional view of the steam discharge device of the pressure cooker according to a preferred embodiment of the present invention. FIG. 5 is an exploded perspective view of the steam discharge device shown in FIG. 4 viewed from below, and FIG. 6 is an exploded perspective view of the steam discharge device shown in FIG. 4 viewed from above.

As shown in Figure 4 to 6, the weight assembly of the steam discharging device of the pressure cooker of the present invention is coupled to the weight assembly seating groove 305 formed in recess in the lid 300, for example, the groove- It can be joined by a protrusion structure. In the weight assembly seating groove 305, the steam discharge passage 310 and the automatic steam discharge passage 315 protrude upward, and steam outlets 310a and 315a are formed at the end of each passage. Reference numeral 305a denotes a locking groove to which the weight assembly is coupled.

On the other hand, the weight assembly of the present invention is largely weight assembly assembly with the weight weight housing 330, the weight housing 320 and the weight housing 320 is accommodated flat plate weight 330, the flat weight 330 It includes a cover 340 is received and coupled to the seating groove 305.

In the above-described configuration, the flat weight 330 is made of a metal body having a weight of about 70g, but is manufactured in the form of a flat plate, not a steel ball, the diameter is increased while the thickness is thinned to about 10mm, diameter compared to the thickness The ratio of 1: 2 will be over. In detail, the flat weight 330 has a lower flat part 331 formed flat on the lower edge, a central inclined part 332 and a central inclined part 332 formed to converge upwardly from the lower flat part 331 toward the center. The upper plate portion 333 extends toward the center portion and is formed flat. Due to this structure, the flat weight 330 of the present invention has a relatively low center of gravity, that is, is formed in the lower space of the upper flat portion 333, so that the flat weight 330 is discharged at the time of steam discharge. Relatively stable shaking can contribute to noise reduction.

One or more vapor discharge holes (three in the present embodiment) 333a are formed in the upper plate portion 333 of the flat weight 330 in the vertical direction. Since steam is immediately discharged through the steam discharge hole 333a formed in the flat weight 330 at a position adjacent to the discharge passage 310, resistance in the steam discharge process is reduced, and consequently the flat weight 330 Can make the movement smaller.

A conical protrusion 335 is placed downward at the central portion of the lower surface of the upper plate 333 so as to block the steam outlet 310a. One or more, preferably three guide rod fitting holes 331a are formed in the lower plate portion 331 of the flat weight 330, and the flat weight 330 is such a guide rod fitting hole ( By being fitted to the vertical guide rod 325 to be described later through 331a, it moves in the vertical direction at the time of steam discharge, and as a result, the steam discharge noise can be reduced.

Next, the weight housing 320 may be implemented as, for example, a cylindrical housing having an upper portion of a synthetic resin material open, specifically, a discharge passage through which the steam discharge passage 310 passes, formed in a central portion of the enclosure. The through hole 324, a flat bottom surface 322 formed flat, and a converging inclined surface 323 obliquely converging upward from the flat bottom surface 322 toward the discharge passage through hole 324.

One or more (three in this embodiment) vertical guide rods 325 fitted into the guide rod fitting holes 331a of the flat weight 330 are formed on the flat bottom surface 322. The flat bottom surface 322 is also formed with a fall preventing protrusion 326 to prevent excessive fall of the flat weight 330 when steam is discharged, in the present embodiment is formed in the form of an annular frame. In place of the circumferential surface 321, for example, two or more (three in this embodiment) coupling protrusions 321a which are engaged by, for example, rotated by being caught by the cover 340 are formed.

Finally, the cover 340 may be made of a synthetic resin material, the lower inclined portion 341 formed upwardly inclined toward the center at the outside, the central flat portion 342 extending toward the center from the lower inclined portion 341 and formed flat ), The upper inclined portion 343 formed to be inclined upwardly from the central flat portion 342, and the central flat portion 344 and the lower inclined portion 341 extending toward the center from the upper inclined portion 343 and being flat. One or more couplings which are formed to protrude downward from the lower surface of the coupling sleeve 345 and the upper inclined portion 343 extending downward from the edge of the hook is caught by the locking projection (321a) formed in the weight housing 320 It may include a groove 346.

In the above-described configuration, one or more central vapor discharge holes 344a are formed in the central flat portion 344, and one or more peripheral vapor discharge holes 343a are formed in the lower inclined portion 341. On the other hand, in place of each coupling sleeve 345, for example, the lower portion is formed with a locking projection (345a) is engaged by the locking groove 305a of the weight assembly seating groove 305. When the steam is discharged by this configuration, the steam discharged from the steam discharge passage 310 passes through the steam discharge hole 333a of the flat weight 330 and discharges the central steam discharge hole 344a of the cover 340 and the surrounding steam. By quickly discharging through the ball 341a, the discharge resistance is reduced, thereby reducing the movement of the flat weight (330).

The steam discharge device of the pressure cooker of the present invention is not limited to the above-described embodiment, any person having ordinary knowledge in the technical field to which the present invention belongs without departing from the gist of the present invention claimed in the claims. Of course, such changes can be made within the scope of the claims.

For example, the anti-falling protrusion may be implemented in the form of a plurality of spaced apart protrusions, for example, three separately formed protrusions, rather than an annular frame. Furthermore, the fall preventing protrusion may be formed to protrude inward from the circumferential surface in the form of an annular frame or a plurality of protrusions, not the flat bottom surface. In addition, the vertical guide rod may be removed and only the vertical guide bar may be provided without the lowering protrusion or the lowering protrusion.

300: lid, 305: weight assembly seating groove,
305a: locking groove, 310: steam discharge flow path,
310a: steam outlet, 315: automatic steam discharge flow path,
315a: steam outlet,
320: weight box,
321: circumferential surface, 321a: engaging projection,
322: flat bottom surface, 323: convergence slope,
324: through hole for discharge flow path, 325: vertical guide rod,
326: anti-fall projection;
330: flat weight, 331: lower flat portion,
331a: guide rod insertion hole, 332: central inclined portion,
333: upper plate portion, 333a: steam outlet,
335: conical protrusion,
340: cover, 341: lower slope,
341a: ambient steam vent, 342: central flat portion,
343: upper inclined portion, 344: central flat portion,
344a: central steam vent, 345: coupling sleeve,
345a: locking projection, 346: coupling groove

Claims (4)

delete In the steam cooker of the pressure cooker is formed in a depression of the pressure cooker lid and detachably coupled to the weight assembly seating groove in which the steam discharge passage protrudes therein,
A weight-to-diameter ratio of 1: 2 or more, and one or more steam discharge holes are formed up and down, and a flat weight weight placed on the discharge port of the steam discharge passage;
A discharge passage through which the steam discharge passage passes is formed in a central portion and is formed of an enclosure having an upper portion to accommodate the flat weight, and a lowering prevention protrusion is formed therein to prevent excessive falling of the flat weight. Weight box and
A steam discharge device for a pressure cooker having one or more steam discharge holes, the cover being received and coupled to the weight assembly seating groove while being coupled to the weight storage box. The method according to claim 2,
At least one vertical guide rod is formed inside the weight holder,
The flat plate weight is a steam discharge device of the pressure cooker, characterized in that the guide rod through-hole is formed through which the vertical guide rod passes. The method according to claim 3,
The flat weight has a lower flat portion formed flat on the lower edge, a central inclined portion formed to converge upwardly from the lower flat portion toward the center, and an upper flat portion extending toward the center portion from the central inclined portion and formed flat. But the center of gravity is formed in the lower space of the upper plate portion, the upper plate portion is formed with one or more steam discharge holes up and down, the guide rod through hole of the pressure cooker, characterized in that formed in the lower plate portion Steam exhaust device.

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