TWI842549B - Pressure cooker with elastic deformation structure - Google Patents

Abstract

A pressure cooker with an elastic deformation structure comprises a pot body, the pot body having a pot mouth, a pot wall and a pot bottom, the pot bottom is connected to the pot wall, and the pot wall surrounds the pot mouth, wherein the pot bottom is provided with at least one elastic deformation structure, the elastic deformation structure comprises: at least one plane deformation part, which is located at the center of the pot bottom; at least two first curved deformation parts; at least two second curved deformation parts, the second curved deformation parts are smaller than the first curved deformation parts; Deformation part; the plane deformation part is spaced apart from the bottom surface of the pot bottom by a distance, and the plane deformation part is arranged on the bottom surface of the pot bottom by connecting the first curved deformation part and the second curved deformation part, so that the central position of the pot bottom has an elastic deformation structure with convex inside and concave outside; the present invention arranges an elastic deformation structure at the bottom of the pot body of the pressure pot to prevent the irreversible deformation of the pot bottom plane protruding outward under dry burning or hot and cold shock.

Description

Pressure cooker with elastic deformation structure

The present invention relates to a pressure cooker structure, and in particular to a pressure cooker with an elastic deformation structure.

At present, the pressure pots on the market generally include pot body, pot cover, sealing ring, inner pot, outer pot, heating plate, pressure switch, thermostat and other parts. Most of them use the method of adding gaskets or elastic materials between the heating plate and the outer pot to provide elastic deformation to ensure that the inner pot and the heating plate can move downward when there is pressure in the pressure pot, and drive the pressure switch to work through the pins on the heating plate or the bottom of the elastic outer pot, thereby ensuring the safety performance of the pressure pot. However, this method will undoubtedly increase the cost of the product, and the assembly process is complicated, increasing the labor cost.

During use, the product has certain requirements in terms of cold and hot shock, durability and dry burning durability. If the product parameters are not designed properly, the composite bottom will easily fall off, bubble, make abnormal sound, and the curvature will change significantly, which will affect the performance.

Furthermore, the existing pressure cooker body cannot be properly used on an induction cooker because the bottom of the body may bulge due to heat or the bottom may undergo irreversible deformation, etc.

In view of the above shortcomings, the inventor has studied ways to improve these shortcomings, and finally came up with the present invention.

The main purpose of the present invention is to provide a pressure cooker with an elastic deformation structure, which is provided with an elastic deformation structure at the bottom of the pressure cooker body to prevent irreversible deformation of the bottom plane of the pressure cooker protruding outward under dry burning or hot and cold shock.

The present invention provides a pressure cooker with an elastic deformation structure, which has a pot body, the pot body has a pot mouth, a pot wall and a pot bottom, the pot bottom is connected to the pot wall, and the pot wall surrounds the pot mouth, wherein the pot bottom is provided with at least one elastic deformation structure, the elastic deformation structure includes: at least one plane deformation part, which is located at the center of the pot bottom; at least two A first curved deformation part; at least two second curved deformation parts, the second curved deformation parts are smaller than the first curved deformation parts; the plane deformation part is separated from the bottom surface of the pot bottom by a distance, and the plane deformation part is arranged on the bottom surface of the pot bottom by connecting the first curved deformation part and the second curved deformation part, so that the central position of the pot bottom has an elastic deformation structure with an inner convex and an outer concave shape.

Preferably, the plane deformation portion is selected from a circular plane or a polygonal plane.

Preferably, the first curved deformation portion and the second curved deformation portion are in an arc shape and are configured to be connected to the bottom of the pot along the outer periphery of the planar deformation portion, and the first curved deformation portion and the second curved deformation portion are connected to form an S-shaped structure.

Preferably, the first curved deformation portion and the second curved deformation portion are in the shape of a rectangular recess, and are configured to be connected to the bottom of the pot along the outer periphery of the planar deformation portion, and the first curved deformation portion and the second curved deformation portion are connected to form an S-shaped structure.

Preferably, the elastic deformation structure is recessed to a depth of 1 mm to 20 mm relative to the bottom of the pot.

Preferably, the depth of the elastic deformation structure relative to the bottom of the pot is greater than 3 mm.

Preferably, the bottom of the pot has at least two elastic deformation structures, one of which has another elastic deformation structure disposed therein.

Preferably, the total depth of the elastic deformation structure relative to the bottom of the pot is 1mm to 20mm.

Preferably, the bottom of the pot has a plurality of elastic deformation structures, the elastic deformation structures are arranged around the bottom of the pot at intervals, and an elastic deformation structure is further provided at the center of the bottom of the pot.

Preferably, the elastic deformation structure and the pot bottom are integrally formed, and the pot body is used to combine a pot cover with a pressure relief valve.

The pressure cooker with elastic deformation structure provided by the present invention mainly utilizes the structure that the bottom of the pot is designed to be concave inwardly, and the elastic deformation structure is set to prevent the bottom of the pot from being irreversibly deformed to protrude outward from the bottom plane of the pot under dry burning or hot and cold shock, so as to ensure the stability of the elastic deformation concave structure and avoid adverse effects such as bulging or irreversible deformation of the bottom due to the expansion tension between metals during high temperature heating.

100: Pressure cooker

10: Pot body

11: Pot mouth

12: Pot wall

13: Pot bottom

131: Elastic deformation structure

1311: Plane deformation part

1312: First bending deformation part

1313: Second bending deformation part

20: Pot lid

21: Pressure relief valve

30: Grip

Figure 1 is a cross-sectional view of the first embodiment of the present invention.

Figure 2 is a partial enlarged view showing the bottom of the pot in the first embodiment of the present invention.

Figure 3 is a partial enlarged view showing the elastic deformation structure in the first embodiment of the present invention.

Figure 4 is a partial enlarged view showing the elastic deformation structure in the second embodiment of the present invention.

Figure 5 is a partial enlarged view showing the elastic deformation structure in the third embodiment of the present invention.

Figure 6 is a cross-sectional view of the fourth embodiment of the present invention.

Figure 7 is a bottom view of the fourth embodiment of the present invention.

Figure 8 is a three-dimensional diagram of the first to fourth embodiments of the present invention.

Please refer to FIG. 1 and FIG. 2, and FIG. 3 and FIG. 8, which are cross-sectional views, partial enlarged views and three-dimensional views of the first embodiment of the present invention, which disclose a pressure pot 100 having an elastic deformation structure 131, and comprising: a pot body 10, having a pot mouth 11, a pot wall 12 and a pot bottom 13, the pot bottom 13 is connected to the pot wall 12, and the pot wall 12 surrounds the pot bottom 13. A pot mouth 11 is formed, wherein the pot bottom 13 is provided with at least one elastic deformation structure 131, and the elastic deformation structure 131 includes: at least one plane deformation portion 1311, which is located at the center of the pot bottom 13, and the plane deformation portion 1311 is selected from a circular plane or a polygonal plane; in this embodiment, the plane deformation portion 1311 is a circular plane as an example.

At least two first curved deformation parts 1312, the first curved deformation parts 1312 are in an arc shape and are configured to be connected to the pot bottom 13 along the outer periphery of the plane deformation part 1311.

At least two second curved deformation parts 1313, the second curved deformation parts 1313 are smaller than the first curved deformation parts 1312; the second curved deformation parts 1313 are in an arc shape and are configured to be connected to the pot bottom 13 along the outer periphery of the plane deformation part 1311; and the first curved deformation part 1312 and the second curved deformation part 1313 are connected to form an S-shaped structure.

In this embodiment, the plane deformation part 1311 is spaced apart from the bottom surface of the pot bottom 13 by a distance, and the plane deformation part 1311 is disposed on the bottom surface of the pot bottom 13 by connecting the first curved deformation part 1312 and the second curved deformation part 1313, so that the center of the pot bottom 13 has an inner convex and outer concave elastic deformation structure 131.

In this embodiment, the curvature of the first curved deformable portion 1312 is 1 to 1.5 times greater than that of the second curved deformable portion 1313, that is, the first curved deformable portion 1312 has more space for heat deformation than the second curved deformable portion 1313.

It should be further explained that the elastic deformable structure 131 and the pot bottom 13 are integrally formed, and the pot body 10 is used to combine a pot cover 20 with a pressure relief valve 21, and the pot cover 20 is connected to a handle 30; in addition, the elastic deformable structure 131 is recessed by 1mm to 20mm relative to the pot bottom 13; the elastic deformable structure 131 is recessed by more than 3mm relative to the pot bottom 13. The inner convex surface of the elastic deformable structure 131 in the pot guides the heat flow in the pot, thereby improving the uniformity of heat distribution in the pot.

In order to further understand the structural features, technical means used and expected effects of the present invention, the use of the present invention is described. It is believed that this will provide a deeper and more specific understanding of the present invention, as described below:

Please continue to refer to Figure 8, and in conjunction with Figures 1, 2 and 3, the present invention mainly utilizes the design of the pot bottom 13 to be a structure in which the bottom is concave into the pot as a whole, and through the provision of the elastic deformation structure 131, it can prevent the pot bottom 13 of the pot from being irreversibly deformed to bulge out of the bottom plane of the pot under dry burning or hot and cold shock, so as to ensure the stability of the elastic deformation concave structure, avoid the adverse effects such as bulging or irreversible deformation of the bottom due to the expansion tension between metals during high temperature heating, reduce the adverse risks of the pot, and improve the quality of the pot.

From the above content, it can be further known that when the pot body 10 is placed on the induction cooker for heating, because the second bending deformation part 1313 in the elastic deformation structure 131 is smaller than the first bending deformation part 1312, the first bending deformation part 1312 has a large curvature and deforms due to heat, which will cause the plane deformation part 1311 to be partially deformed and concave toward the inside of the pot body 10. At the same time, the second bending deformation part 1313 can also provide elastic deformation, so the support strength of the pot body 10 when heated can be guaranteed; of course, when the pot body 10 cools down, the elastic deformation structure 131 will shrink and deform due to cooling, and gradually return to its original state.

Please refer to FIG. 4 again, which is a partial enlarged view of the elastic deformation structure 131 in the second embodiment of the present invention. Compared with the first embodiment, the difference between this embodiment and the first embodiment is that the first bending deformation part 1312 and the second bending deformation part 1313 are in the shape of a rectangular recess, and are configured to be connected to the pot bottom 13 along the outer periphery of the plane deformation part 1311, and the first bending deformation part 1312 and the second bending deformation part 1313 are connected to form an S-shaped structure; this embodiment can also achieve the same function and effect as the first embodiment.

Please refer to FIG. 5 again, which is a partial enlarged view showing the elastic deformation structure 131 in the third embodiment of the present invention. Compared with the first embodiment, the present embodiment is different in that the pot bottom 13 has at least two elastic deformation structures 131, one of which has another elastic deformation structure 131 disposed therein; as can be seen from the figure, the two elastic deformation structures 131 of the present embodiment allow the pot bottom 13 to be formed into a convex shape, and the present embodiment can also achieve the same function and effect as the first embodiment. Moreover, since the present embodiment has two elastic deformation structures 131, the inner convex surface formed by the two elastic deformation structures 131 has a good flow guiding effect on the heat flow in the pot when heated, so as to be more conducive to guiding the formation of multiple heat convection loops in the pot, improving the uniformity of heat distribution in the pot, and improving the cooking effect.

Please refer to FIG. 6 and FIG. 7 , FIG. 6 is a cross-sectional view and a bottom view of the fourth embodiment of the present invention. Compared with the first embodiment, the present embodiment is different in that the pot bottom 13 has a plurality of elastic deformation structures 131, which are arranged around the pot bottom 13 at intervals, and the center of the pot bottom 13 is provided with an elastic deformation structure 131; the present embodiment can also achieve the same function and effect as the first embodiment. Moreover, since the present embodiment has a plurality of elastic deformation structures 131, the inner convex surface formed by the plurality of elastic deformation structures 131 has a good flow guiding effect on the heat flow in the pot when heated, so as to be more conducive to guiding the formation of a plurality of heat convection loops of different sizes in the pot, and more efficiently improve the uniformity of heat distribution in the pot, thereby improving the cooking effect.

Here, the features of the present invention and its expected effects are described as follows:

First, the second bending deformation part 1313 in the elastic deformation structure 131 of the present invention is smaller than the first bending deformation part 1312, so the first bending deformation part 1312 has a large curvature and deforms under heat to ensure the stability of the elastically deformed concave structure and avoid adverse effects such as bulging or irreversible deformation of the bottom due to the expansion tension between metals during high-temperature heating.

Secondly, because the invention has multiple elastic deformation structures 131, when heated, the inner convex surface formed by the multiple elastic deformation structures 131 has a good guiding effect on the heat flow in the pot, so as to be more conducive to guiding the formation of multiple heat convection loops of different sizes in the pot, and more efficiently improve the uniformity of heat distribution in the pot, thereby improving the cooking effect.

The above is a specific and concrete example to illustrate the implementation of the present invention. Those with ordinary knowledge in the relevant technical field can easily understand the other advantages and effects of the present invention from the content disclosed in this manual.

The above is only a preferred embodiment of the present invention and is not intended to limit the scope of the present invention; any other equivalent changes or modifications that do not deviate from the spirit disclosed by the present invention should be included in the following patent scope.

100: Pressure cooker

10: Pot body

20: Pot lid

21: Pressure relief valve

30: Grip

Claims (7)

A pressure cooker with an elastic deformation structure comprises a pot body, the pot body having a pot mouth, a pot wall and a pot bottom, the pot bottom is connected to the pot wall, and the pot wall is formed around the pot mouth, and the pot bottom is characterized in that: the pot bottom is provided with at least one elastic deformation structure, the elastic deformation structure comprises: at least one plane deformation part, which is located at the center of the pot bottom; at least two first bending deformation parts; at least two second bending deformation parts, the second bending deformation parts are smaller than the first bending deformation parts; wherein the plane deformation part is separated from the bottom surface of the pot bottom by a distance, and the plane deformation part is The deformed part is arranged on the bottom surface of the pot bottom by connecting the first bending deformation parts and the second bending deformation parts, so that the central position of the pot bottom has the elastic deformation structure with convex inside and concave outside, and the curvature of the first bending deformation parts is greater than 1 to 1.5 times that of the second bending deformation parts. In addition, the pot bottom has at least two elastic deformation structures, one of which has another elastic deformation structure arranged therein; wherein the elastic deformation structure is recessed to a depth of 1mm to 20mm relative to the pot bottom, and the elastic deformation structure is recessed to a depth of more than 3mm relative to the pot bottom. A pressure cooker with an elastic deformation structure as described in claim 1, wherein the plane deformation portion is selected from a circular plane or a polygonal plane. A pressure cooker with an elastic deformation structure as described in claim 2, wherein the first bending deformation parts and the second bending deformation parts are in an arc shape and are configured to be connected to the bottom of the pot along the outer periphery of the planar deformation part, and the first bending deformation parts and the second bending deformation parts are connected to form an S-shaped structure. A pressure cooker with an elastic deformation structure as described in claim 2, wherein the first bending deformation parts and the second bending deformation parts are in the shape of rectangular recesses and are configured to be connected to the bottom of the pot along the outer periphery of the planar deformation part, and the first bending deformation parts and the second bending deformation parts are connected to form an S-shaped structure. A pressure cooker with an elastic deformation structure as described in claim 1, wherein the total depth of the elastic deformation structure relative to the bottom of the pot is 1mm to 20mm. A pressure cooker with an elastic deformation structure as described in claim 1, wherein the bottom of the pot has a plurality of elastic deformation structures, the elastic deformation structures are arranged around the bottom of the pot at intervals, and an elastic deformation structure is further provided at the center of the bottom of the pot. A pressure cooker with an elastic deformation structure as described in any one of claims 1 to 6, wherein the elastic deformation structure and the bottom of the pot are integrally formed, and the pot body is used to combine a pot cover with a pressure relief valve.

Images