CN2879885Y - Pressure bearing means for electric pressure cooker - Google Patents

Abstract

The utility model discloses a pressure bearing means for electric pressure cooker which is evenly disposed under the heat plate of the electric pressure cooker to comprise spring reeds installed under the support rods of the heat plate, and a soleplate of a heat preserving bucket, and the utility model is characterized in that two protruding reinforcing ribs are installed on the soleplate of the heat preserving bucket, the spring reeds are pressed between the two reinforcing ribs, and the distance between the force point of a support rod on a spring rib and the external reinforcing rib is less than that between the force point and the internal reinforcing rib. In an electric pressure cooker adopting the structure of the utility model, the reinforcing ribs on the soleplate of the heat preserving bucket replaces the shores under the spring reed; the locating is rational and the verge with better strength on the soleplate of the heat preserving bucket bears a bigger press, so the press on the spring reed is rational distributed. At the same time, the soleplate is under press with two arc-shaped parts instead of two points, so as to enlarge the bearing surface, to make the contact surface less prone to deformation, to satisfy the design requirements to limit pressure, and to make the operation safer.

Description

The pressure support device of electric pressure cooking saucepan

Technical field

The utility model relates to the electric pressure cooking saucepan field, is specifically related to a kind of pressure support device of electric pressure cooking saucepan.

Background technology

Existing widely used electric pressure cooking saucepan, during its work, the steam pressure that increases in the inner bag acquires a certain degree, and oppresses heating plate immediately, and the resilient supporting unit of supporting heating plate produces pressure deformation, make heating plate descend, the depression bar that is fixed on the heating plate bottom also produces downward displacement, is sent to control circuit by votage control switch, cuts off the electricity supply, stop heating, thereby realize the automatic safe control of electric pressure cooking saucepan.Therefore displacement is the essential condition that triggers security control accurately, and on the pressure support device of the heating plate of the associated present electric pressure cooking saucepan of structure below.As shown in Figure 1, be arranged on the pressure support device of heating plate 3 belows, comprise the heat-preserving container base plate 1 that is installed on heating plate 3 support columns 2 belows, the shell fragment 7 that bears pressure, shell fragment 7 belows, wherein the two ends, bottom of shell fragment 7 are equipped with two fore-sets 6, the position, force that the fore-set 6 at two ends, middle support column 2 act on shell fragment 7 is on the same straight line, forms the lever stress state.In the common structure, each fore-set 6 does not wait with the distance of support column 2, wherein inboard fore-set has the short arm of force, and outside fore-set has the long arm of force, cause heat-preserving container base plate 1 stressed unreasonable, the marginal position that intensity is big affords less pressure on the contrary, add that fore-set 6 bottoms and base plate contact-making surface are very little, make its bottom formation abrasion behind the pressurized repeatedly, the base plate position at less, the close center of intensity then produces depression, change has taken place in heat-preserving container base plate and the distance of the two, has destroyed the pressure limiting requirement of original design, makes electric pressure cooking saucepan easily produce potential safety hazard.

Summary of the invention

For overcoming the above-mentioned defective of prior art, the purpose of this utility model is to provide a kind of simple and reasonable, not yielding, pressure support device of ensureing electric pressure cooking saucepan safe in utilization.

In order to solve above technical problem, technical solution adopted in the utility model is: a kind of pressure support device of electric pressure cooking saucepan, evenly be arranged on heating plate below in the electric pressure cooking saucepan, comprise the shell fragment that is installed in heating plate support column below, the heat-preserving container base plate of shell fragment below, this heat-preserving container base plate is provided with the reinforcement of two circle projections, the shell fragment pressure between two reinforcements, and wherein support column to the point of application of shell fragment to the distance of outside reinforcement less than distance to inboard reinforcement.

Adopt the electric pressure cooking saucepan of the utility model said structure, the fore-set that has replaced the shell fragment below by the reinforcement on the heat-preserving container base plate, its location rationally, when shell fragment presses down reinforcement, outside reinforcement is stressed greater than inboard reinforcement, the marginal position that intensity is big on the heat-preserving container base plate affords bigger pressure, and the pressure of shell fragment is able to reasonable distribution.Simultaneously stressed to change two arcs into stressed by 2 for the heat-preserving container base plate, strengthened supporting surface, and contact-making surface is difficult for deformation, has ensured the designing requirement of original pressure limiting, uses safer.

Description of drawings

Fig. 1 is the schematic diagram of prior art structure;

Fig. 2 is the schematic diagram of the structure of the utility model one embodiment;

Fig. 3 is a scheme of installation of the present utility model.

Among the figure: 1, heat-preserving container base plate, 2, support column, 3, heating plate, 4, depression bar, 5, votage control switch, 6, fore-set, 7, shell fragment, 8, inboard reinforcement, 9, outside reinforcement.

The specific embodiment

Introduce the utility model in detail below in conjunction with accompanying drawing.

With reference to Fig. 2, Fig. 3.In electric pressure cooking saucepan, the bottom of heating plate 3 has 6 along the equally distributed support column 2 of circumference, and a bar shaped shell fragment 7 is fixed in each support column 2 below, and the bearing of trend of shell fragment 7 is consistent with radius; On the heat-preserving container base plate 1 below the heating plate 3, bossed inside and outside two circle reinforcements 8,9 are set, two circle reinforcement concentrics, shell fragment 7 pressures are between two reinforcements, the pressure of heating plate 3 is applied on two reinforcements by shell fragment 7 by support column 2, and wherein 2 pairs of shell fragments 7 of support column the point of application to the distance of outside reinforcement 9 less than distance to inboard reinforcement 8.

The utility model is owing to have bigger contacting between shell fragment 7 and the reinforcement 8,9, as long as the material of shell fragment 7 is reliable, distortion and reduction are normal, the deformation of stressed generation keeps certain functional relation, the displacement unanimity that causes of relevant pressure then, ensured the designing requirement of original pressure limiting, made the use of electric pressure cooking saucepan safer.

The utility model can evenly distribute 3-6 in the bottom of heating plate.

Claims (1)

1, a kind of pressure support device of electric pressure cooking saucepan, evenly be arranged on heating plate (3) below of electric pressure cooking saucepan, comprise the shell fragment (7) that is installed in heating plate support column (2) below, the heat-preserving container base plate (1) of shell fragment below, it is characterized in that: this heat-preserving container base plate is provided with the reinforcement (8,9) of two circle projections, shell fragment (7) pressure between two reinforcements, and wherein support column (2) to the point of application of shell fragment to the distance of outside reinforcement (9) less than the distance of this point of application to inboard reinforcement (8).

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