KR200315471Y1 - Oven For Electric Pressure Rice Cooker - Google Patents

Abstract

The present invention is for the oven of the electric pressure cooker having a handle, it is provided with a handle on the oven top of the electric pressure cooker to facilitate the removal of the oven. In addition, the present invention is to use a rivet, O-ring, while maintaining the airtight while forming a hole for coupling the handle to the oven of the electric pressure cooker important airtightness. In addition, the present invention has the effect of forming a groove in the oven before the riveting, the shape of the groove and the shape of the rivet head in the polygon, so that the airtightness is not weakened despite the hole is formed in the oven.

Description

Oven For Electric Pressure Rice Cooker}

The present invention is a structure related to the oven and the handle of the oven used in the inside of the electric pressure cooker, the electric pressure having a handle to facilitate the removal of the oven to the outside of the electric pressure cooker, or to be inserted into the inside of the electric pressure cooker. It is about the oven of the cooker.

In general, an electric pressure cooker includes a main body, a lid covering the main body, an oven, an electric device for heating the oven, and a steam discharge device for adjusting the pressure. As a part containing rice, water, etc., it should be separated from the main body of the electric pressure cooker, so that cooking, washing and moving is simple. Therefore, the oven has a structure that is separated from the electric pressure cooker, typically the oven of the electric pressure cooker has a simple cylindrical shape.

Conventional electric pressure cooker oven does not have a separate handle when taken out from the pressure cooker or put into the pressure cooker, just tilt the top of the cylindrical oven by a certain angle outside, so as to hold the inclined portion by hand It was.

The external form of the oven of the electric pressure cooker is shown in the drawing of the registered utility model No. 0182317 already filed and published. 1 is a registration utility model No. 082317 of FIG. 1, it can be seen that the conventional oven for an electric pressure cooker is inclined to a certain angle outside the upper portion of the oven without a separate handle.

In addition, the drawing of the patent application 2000-0053281 discloses the shape of a conventional oven for an electric pressure cooker. Figure 2 is a patent application No. 2000-0053281 of Figure 2, the conventional electric pressure cooker can be seen that the shape of the upper portion of the oven is inclined only a certain angle without a separate handle.

As shown in Figure 1 and 2, the conventional oven for an electric pressure cooker does not have a handle, it was difficult to put into the electric pressure cooker, especially when the oven is hot, there was a disadvantage that can not easily hold the oven due to the heat of the oven. .

In addition, it is difficult to form a hole in the oven to attach the oven handle, and it is difficult to ensure a good air tightness when it is combined using a bolt or a nut, and it is difficult to achieve the unique purpose of the electric pressure cooker, which increases the pressure by air tightness. There was this.

The present invention is to solve the above problems of the prior art, the specific object to achieve through the present invention is as follows.

First, the purpose is to combine the separate handle to the oven of the electric pressure cooker to easily hold and detach the oven.

Second, as a coupling member used to attach the handle to the oven of the electric pressure cooker, by using a rivet rather than a conventional bolt or nut to increase the adhesion, and to prevent the steam inside the oven to be counted through the hole to the electric pressure cooker The purpose is to prevent the degradation of performance due to the hole formed in the oven.

Third, when attaching the handle to the oven of the electric pressure cooker, by forming a groove in the oven, a hole is formed in the groove, so that the head of the rivet is surrounded by the groove to have a higher adhesion, steam The purpose is not to leak out.

Fourth, the groove protruding into the oven has a polygonal shape, and the head of the rivet also has a polygonal shape corresponding to the groove so that the head of the rivet is caught in the angular portion of the groove to prevent rotation of the rivet. The purpose is to ensure that there is no possibility of a gap between the rivet and the oven to have a higher adhesion, and to prevent the leakage of steam.

Fifth, as a coupling member used when attaching the handle to the oven of the electric pressure cooker, by using the O-ring and rivets to increase the higher adhesion and prevent the steam from leaking through the hole.

1 is disclosed in the prior art registered utility model No. 0182317.

FIG. 2 is a view of FIG. 2 disclosed in the prior art patent application No. 2000-0053281.

Figure 3 is an enlarged cross-sectional view of the coupling portion of the oven and the handle of the present invention.

Figure 4 is an enlarged cross-sectional view of the rivet used in the present invention.

Figure 5 is a cross-sectional view showing in sequence the process of coupling the rivet to the oven of the present invention.

Figure 6 is a perspective view for explaining a state in which the handle is coupled after the rivet is coupled to the oven of the present invention.

7 is a perspective view for explaining a state in which the oven of the present invention is seated on the main body of the electric pressure cooker.

Figure 8 is a cross-sectional view showing in sequence the process of coupling the rivets to the grooved oven of the present invention.

Figure 9 is an enlarged perspective view of the groove and rivet head of the present invention has a polygonal shape.

Figure 10 is a cross-sectional view showing a sequence of coupling the O-ring and rivets to the oven of the present invention.

Figure 11 is a cross-sectional view showing in sequence the process of maintaining the airtight rivet of the present invention in close contact with the oven.

Explanatory drawing of symbols for main parts of the drawings

(Not applicable to FIGS. 1 and 2)

10: oven 12: hole

14: coupling member 20: handle

22: rivet 23: rivet head

23a: O-ring seating part 24: machining part

25: shoulder portion 26: punch

27: ledger 28: screw

29: screw connection 30: groove

32: O-ring

In order to achieve the above object, the present invention requires a handle and a coupling member coupled to an outside of an oven for an electric pressure cooker, and an oven is formed with a hole for penetrating the coupling member. Grooves are formed around the holes, rivets are used as coupling members, and O-rings are used to increase adhesion.

The features of the present invention are first, having a handle, second, using a rivet to combine the handle, third, forming a groove in the oven, fourth, the groove of the oven as a polygon and a polygon rivet corresponding to this groove Fifth, using O-rings.

That is, the present invention is a conventional electric pressure cooker comprising an oven and an electric device for heating the oven, by coupling the handle to the upper side of the oven to facilitate the removal of the oven before and after cooking. It features.

In addition, the present invention is characterized in that a hole is formed in the upper side of the oven, the oven and the handle is in close contact, fixed by the coupling member penetrating the hole.

In addition, the present invention is formed in the upper side of the oven grooves protruding outward of the oven, the groove is formed in the groove, the oven and the handle is in close contact by the coupling member penetrating the hole, It is characterized in that it is fixed.

In addition, the present invention forms a groove of the polygon protruding outwardly of the oven on the upper side of the oven, the groove is formed, the oven and the handle is in close contact by the coupling member penetrating the hole It is characterized in that the fixed.

In addition, the present invention is to use a rivet having a circular head or a rivet having a polygonal head as the coupling member, characterized in that the head of the rivet is placed inside the oven.

In addition, the present invention is characterized in that the O-ring sandwiched between the head of the rivet and the oven.

Rivet is a joining element used for permanently joining steel plate or ROLLED STEEL, and is widely used in boilers, water tanks, gas tanks, rebar structures, aircraft, ships, etc. due to its relatively simple structure and method of use. It is used. The materials used are copper, brass, aluminum and duralumin. The inside of the rivet is provided with a groove corresponding to the punch to be plastically deformed by the punch. Therefore, in the case of rivet bonding, the rivet is deformed outward due to plastic deformation inside the rivet, thereby improving adhesion.

The present invention is a technique for applying the rivet joint method to the oven for the first time to couple the handle to the oven, the rivet used in the present invention is a rivet that can withstand high pressure and at the same time keep the joint airtight.

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

Figure 3 shows in a cross-sectional view a specific bonding state by having a handle on the oven for electric pressure cooker.

Oven 10 is not much different from the conventionally used cylindrical oven and may be in the shape of a square pillar in some cases.

The handle 20 is coupled to the outside of the oven 10, and a hole 12 is formed at the upper side of the oven 10 for coupling. Holes 12 are formed in one or two per handle 20 as needed, the handle 20 is to combine the two on both sides of the oven 10 to be easy to face with both hands.

The handle 20 is coupled to the top and the outside of the oven 10.

The coupling member 14 penetrates the hole 12 to bring the oven 10 into close contact with the handle 20. As the coupling member 14, a bolt and a nut may be used.

4 is a view showing each configuration of the rivet 22 used as the coupling member.

The bolt and nut used as the coupling member 14 in the embodiment of FIG. 3 have a poor adhesion and may loosen or loosen, and thus, the rivet 22 is used in the embodiment of FIG. 4.

The rivet 22 of this figure is a shoulder rivet, and a shoulder rivet consists of the rivet head 23, the shoulder part 25, the long part 27, and the screw fastening part 29. As shown in FIG. The rivet head 23 is provided with an O-ring seating portion 23a, and a machining portion 24 is formed at a portion where the shoulder portion 25 and the tenon 27 meet.

The processing part 24 is a part which is plastically processed by the punch 26 so that the rivet 22 may be fixed and airtight may be maintained.

The screw fastening portion 29 is a portion in which the female thread is formed in the tenon 27 of the rivet 22 and is used to fix the screw 28 for engaging the handle 20.

5 is a view of an assembling procedure in the case of using the rivet 22 as a coupling member.

The rivets 22 are inserted into the holes 12 formed in the oven 10 so that the rivets 22 face outward from the oven 10 from the inside of the oven 10 so that the rivet head 23 is inside the oven 10. After inserting the rivet 22 is pressed to the pressing portion of the processing unit 24 with a punch 26 to maintain the airtight. The processing portion 24 is compressed and opened to the side to seal the hole 12.

The handle 20 is screwed by inserting a screw 28 penetrating the handle 20 to the female screw formed in the rivet 22. The method of attaching the handle 20 using the rivet 22, once riveted, is not limited to the screw coupling method described above, and a conventional coupling method may be selectively used.

6 represents a state in which the handle is attached after the rivet 22 is coupled.

The rivets 22 riveted to the oven 10 maintain airtightness so that steam inside the oven 10 does not leak out.

7 is a state in which the handle 10 is coupled to the oven 10 is seated on the electric pressure cooker.

FIG. 8 is a view according to the assembling procedure in the case where the rivet 22 is coupled in the state where the groove 30 is formed in the hole 12 forming portion of the oven 10. The groove 30 is projected in the outward direction of the oven 10, the area of the groove 30 seen from the inside of the oven 10 is equal to the area of the rivet head 23, the rivet 22 is fitted When there is no gap. In this case, the rivet 22 is fitted into the groove 30 of the oven 10 to improve airtightness.

9 is a state when the groove 30 of the oven 10 is polygonal and the shape of the rivet 22 coupled to the oven 10 when the rivet head 23 is polygonal is viewed from the inside of the oven 10. The figure which shows. Since the rivet head 23 and the groove 30 are polygonal and one surface is in contact with each other, the groove 30 is not riveted so that the rivet 22 does not rotate when the handle 20 is screwed to the rivet 22. Will be supported. Therefore, since the adhesion is prevented from falling due to unnecessary rotation, the airtightness is more excellent.

10 is a view according to the assembling procedure when the rivet 22 and the O-ring 32 are coupled together.

O-ring 32 is sandwiched between the rivet head 23 and the oven 10, the lower end of the rivet head 23 O-ring seating portion 23a for engaging with the O-ring 32 to be fixed; 4) is formed.

The O-ring 32 serves to close the gap between the rivet head 23 and the oven 10 more closely, and the O-ring 32 is made of a material having a better elasticity than the rivet 22 at the time of riveting. When compressed, it is slightly contracted and at the same time in close contact with the elastic expansion. In this case, the airtightness is improved than when using a regular rivet.

FIG. 11 is a view showing the order of riveting how the O-ring 32 and the processing portion 24 are to be kept airtight.

(a) is a state just before the punch 26 processes the rivet 22, and shows the state just before the punch 26 contacts the machining part 24 of the rivet 22. As shown in FIG.

(b) shows that the processing unit 24 starts to deform as it comes into contact with the punch 26, and the inside of the rivet 22 also starts to deform while contacting the center of the punch 26.

(c) shows the state in which the plastic working of the processing part 24 is completed and the plastic working inside the rivet 22 is also completed. The O-ring 32 and the processing portion 24 are completely in contact with the inside and outside surfaces of the oven 10, and the side portion of the hole 12 of the oven 10 and the punch 26 are moved outward from the center of the rivet 22. By giving the pushing-out deformation (in the direction of the arrow in the drawing), the shoulder portion 25 of the rivet 22 is plastically deformed outward and strongly adhered.

The present invention has an effect of facilitating the removal of the oven by coupling the handle to the oven for the electric pressure cooker.

In addition, the present invention has an effect of improving the airtightness than when using a bolt or nut by using a rivet when coupling the handle to the oven for electric pressure cooker.

In addition, the present invention has an effect of improving the airtightness by forming a groove in the oven for the electric pressure cooker, the rivet is combined.

In addition, the present invention is to prevent the unnecessary rotation of the rivets by the groove formed in the oven for the electric pressure cooker to have a polygonal shape, there is an effect of preventing the weakening of the airtight that may occur by the rotation.

In addition, the present invention has an effect of improving the airtightness by further close the space between the rivet and the oven by inserting the O-ring to the rivet.

Claims (10)

In the conventional electric pressure cooker comprising an oven and an electric device for heating the oven, Combined with the handle on the upper side of the oven oven for electric pressure cooker, characterized in that to facilitate the removal of the oven before and after cooking. The method of claim 1, Holes are formed in the upper side of the oven, The oven and the handle is an oven for an electric pressure cooker, characterized in that the close contact with the fixing member penetrating the hole. The method of claim 2, The coupling member is a rivet, Oven for electric pressure cooker, characterized in that the head of the rivet is placed inside the oven. The method of claim 2, The coupling member is a rivet, The head of the rivet is placed inside the oven, An oven for an electric pressure cooker, characterized in that the O-ring is sandwiched between the head of the rivet and the oven. The method of claim 1, On the upper side of the oven is formed a groove protruding outward of the oven, The groove is formed with a hole, The oven and the handle is an oven for an electric pressure cooker, characterized in that the close contact with the fixing member penetrating the hole. The method of claim 5, The coupling member is a rivet, Oven for electric pressure cooker, characterized in that the head of the rivet is placed inside the oven. The method of claim 5, The coupling member is a rivet, The head of the rivet is placed inside the oven, An oven for an electric pressure cooker, characterized in that the O-ring is sandwiched between the head of the rivet and the oven. The method of claim 1, On the upper side of the oven is formed a groove of a polygon protruding outward of the oven, The groove is formed with a hole, The oven and the handle is an oven for an electric pressure cooker, characterized in that the close contact with the fixing member penetrating the hole. The method of claim 8, The coupling member is a rivet, The head of the rivet is a polygon corresponding to all or part of the groove of the polygon, Oven for electric pressure cooker, characterized in that the head of the rivet is placed inside the oven. The method of claim 8, The coupling member is a rivet, The head of the rivet is a polygon corresponding to the groove of the polygon, The head of the rivet is placed inside the oven, The oven for electric pressure cooker, characterized in that the O-ring is sandwiched between the head of the rivet and the oven.