CN201414687Y

CN201414687Y - Elastic support device for pressure control electric pressure cooker

Info

Publication number: CN201414687Y
Application number: CN2009200535909U
Authority: CN
Inventors: 袁振华
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-03-27
Filing date: 2009-03-27
Publication date: 2010-03-03
Anticipated expiration: 2019-03-27

Abstract

The utility model discloses an elastic support device for a pressure control electric pressure cooker. The elastic support device comprises elastic sheets and an outer cooker, and is characterized inthat at least 3 upwards-convex annular lug bosses distributed along the circumference of the outer cooker bottom are arranged on the bottom surface of the outer cooker, a circular elastic sheet is arranged on each annular lug boss, and the annular lug bosses are contacted with the lower surfaces of the circular elastic sheets for supporting the elastic sheets. The elastic support device has the beneficial effects that: as the elastic support device adopts a plurality of upwards-convex annular lug bosses distributed on the circumference of the outer cooker bottom, and each annular lug boss is matched with a small circular elastic sheet used as the elastic support of the electric pressure cooker, the elastic support device not only can realize large travel compression, but also can guaranteeenough support force, good elastic deformation linearity, high control accuracy and easy machining; meanwhile, compared with prior art, the circular elastic sheet structure has the advantages of material saving, light weight and low production cost.

Description

The resilient supporting unit of pressure controlled electric pressure cooker

Technical field

The utility model relates to electric pressure cooking saucepan, and particularly a kind of resilient supporting unit of pressure controlled electric pressure cooker belongs to the improvement technology that has electric pressure cooking saucepan now.

Background technology

The existing common part of pressure controlled electric pressure cooker; be that pot in utilizing, pot cover, sealing ring and outer pot are combined into closed chamber; between heat-generating disc and outer pot, be provided with resilient supporting unit; after the annular seal space internal pressure raises; by interior pot bottom, heat-generating disc pressure is transmitted to the heat-generating disc support foot and drives the resilient supporting unit that is contained in outer pot bottom; make this resilient supporting unit produce distortion; utilize this deflection to drive the dynamic seal (packing) state of power-off protection apparatus and change closed chamber; when deflection was enough big, dynamic seal (packing) was lost efficacy and was produced the mode of operation of peripheral pressure release.Wherein there is a kind of technical scheme of resilient supporting unit to be: to include shell fragment and outer pot, shell fragment is the circle of a full wafer, which is provided with some erection openings, the bottom surface of outer pot is provided with an annular boss that raises up, and this annular boss contacts support with the shell fragment lower surface and shell fragment.During use, the heat-generating disc of electric pressure cooking saucepan promptly places on the circular shell fragment.This resilient supporting unit is because shell fragment is an absolute construction with respect to outer pot, and the material that does not therefore influence outer pot is selected and processing, only needs processing shell fragment separately, therefore processes simple installation, and coefficient of elasticity and amount of elastic deformation are controlled easily, the elastic deformation good linearity.But this technical scheme is because shell fragment is the circle of full wafer, and the actual support district is the position of several feets of heat-generating disc, and promptly most of zone of shell fragment there is no supporting role, i.e. waste material also increases the overall weight of product; Simultaneously, adopt the single annular boss to support whole circular shell fragment, the support strength of shell fragment is lower, can influence its requirement of strength as supporter.

The utility model content

The purpose of this utility model is the shortcoming that overcomes prior art, provides a kind of requirement that can satisfy travel compression can guarantee the resilient supporting unit of enough supporting forces, elastic deformation good linearity, control accuracy height, handling ease, province's material, in light weight, pressure controlled electric pressure cooker that cost is low again.

The purpose of this utility model can realize by following technical scheme.

The utility model includes shell fragment and outer pot, the bottom surface that it is characterized in that outer pot is provided with the annular boss that raises up that the bottom of a pan circumferentially distributes outside at least 3 edges, a circular shell fragment is set on each annular boss, and annular boss contacts support with circular shell fragment lower surface and shell fragment.

The number of above-mentioned annular boss is identical with the feet number of corresponding electric pressure cooking saucepan heat-generating disc.

For guaranteeing effective elasticity deformation of the present utility model, the diameter of above-mentioned circular shell fragment is greater than the diameter of annular boss, and the internal diameter of annular boss is greater than the external diameter of pressure cooker heat-generating disc feet.

Circular shell fragment in the technique scheme is tabular or dish shape.

Each annular boss that raises up on the face of the bottom of a pan, technique scheme China and foreign countries can be the annular of complete closure, also the discontinuous annular that can be made up of several sections segmental arcs or several salient points.

For guaranteeing elastically-deformable in the course of the work stroke of shell fragment of the present utility model and linearity, the height of annular boss is 1～6 millimeter on the above-mentioned outer pot bottom surface.

When the utility model uses, the pressure control drive rod is set under the heat-generating disc, drive rod passes the outer the bottom of a pan, the flashing switch in the corresponding pressure pot electrically-controlled component of pressure control drive rod below.During electric pressure cooking saucepan work, interior pot, sealing ring, after pot cover and outer pot fasten, the closed chamber of having formed dynamic seal (packing), the heat-generating disc heating, the closed chamber internal pressure raises, the heat-generating disc pressure-bearing, each shell fragment produces downward strain under the effect that the heat-generating disc feet is exerted pressure, the pressure control drive rod is thereupon to bottom offset, and when the pressure in the pressure cooker reached the operating pressure of setting, pressure control drive rod displacement was enough to drive the flashing switch and disconnects heater circuit, during superpressure, produce bigger amount of movement and lost efficacy by dynamic seal (packing) and the generation pressure release, keep repeatable, guarantee that the control accuracy of product and pressure release parameter are normal.

The beneficial effects of the utility model are: because the utility model adopts the circumferential annular boss that raises up that distributes in the bottom of a pan outside several little edges, each boss cooperates the resiliency supported of a little circular shell fragment as electric pressure cooking saucepan, therefore can realize that big travel compression can guarantee enough supporting forces, elastic deformation good linearity, control accuracy height, handling ease again, the structure that is compared to existing circular shell fragment simultaneously has province's material, in light weight, characteristics that production cost is low.

Description of drawings

Fig. 1 is the partial structurtes schematic diagram that has used pressure controlled electric pressure cooker of the present utility model;

Fig. 2 is an explosive view of the present utility model.

Omitted among the figure and the irrelevant miscellaneous part of the utility model design main points.

The specific embodiment

Below in conjunction with accompanying drawing the specific embodiment of the present utility model is described further.

As shown in Figure 1 and Figure 2, the utility model includes shell fragment 1 and outer pot 2, the bottom surface that it is characterized in that outer pot 2 is provided with the annular boss that raises up 21 that the bottom of a pan circumferentially distributes outside at least 3 edges, a circular shell fragment 1 is set on each annular boss 21, and annular boss 21 contacts support with circular shell fragment 1 lower surface and shell fragment 1.Circular shell fragment 1 is tabular or dish shape.The number of above-mentioned annular boss 21 is identical with the feet number of corresponding electric pressure cooking saucepan heat-generating disc.In the present embodiment, adopt the heat-generating disc that 3 feets are arranged, therefore, above-mentioned annular boss 21 is made as 3, and particular location is corresponding one by one with 3 feets of heat-generating disc.

For guaranteeing effective elasticity deformation of the present utility model, the diameter of above-mentioned circular shell fragment 1 is greater than the diameter of annular boss 21, and the internal diameter of annular boss 21 is greater than the external diameter of pressure cooker heat-generating disc feet.In other words, when requiring the feet of electric pressure cooking saucepan heat-generating disc to place on the circular shell fragment 1 exactly, its zone that contacts with shell fragment 1 should be in the zone that annular boss 21 internal diameters are enclosed fully.

As shown in Figure 2, each annular boss 21 can be the annular of complete closure, the also discontinuous annular that can form by several sections segmental arcs or several salient points, annular boss 21 can directly draw in the bottom of outer pot 2 and form, also can make separately and be fixed on outer pot 2 bottom surfaces again, the height of annular boss 21 is 1～6 millimeter, make shell fragment 1 and outer pot 2 bottom surfaces when pressure cooker is not worked, maintain 1～6 mm clearance, can guarantee elastically-deformable in the course of the work stroke of shell fragment 1 of the present utility model and linearity like this.

When the utility model used, as shown in Figure 1, support had the heat-generating disc 3 of electric pressure cooking saucepan on the shell fragment 1, and the interior pot 4 of electric pressure cooking saucepan places on the heat-generating disc 3; Accompany sealing ring between pot cover, the interior pot 4, after pot cover and outer pot 2 fasten, formed the space of a dynamic seal (packing); Heat-generating disc is provided with the pressure control drive rod 3 times, and drive rod passes 2 ends of outer pot, the flashing switch (not shown) in the corresponding pressure pot electrically-controlled component of pressure control drive rod below.During electric pressure cooking saucepan work, heat-generating disc 3 heatings, the closed chamber internal pressure raises, heat-generating disc 3 pressure-bearings, 3 shell fragments 1 produce downward strain under the effect that 3 feets of heat-generating disc 3 are exerted pressure, the pressure control drive rod is thereupon to bottom offset, and when the pressure in the pressure cooker reached the operating pressure of setting, pressure control drive rod displacement was enough to drive flash switch and disconnects heater circuit; If the pressure of pot 4 rises to specified limit levels for some reason, the displacement of heat-generating disc will destroy the dynamic seal (packing) state between pot cover, interior pot 4, the sealing ring and produce peripheral pressure release, along with the generation of pressure release situation, shell fragment 1 resets, and guarantees that the constructional aspect of pressure cooker recovers normal condition.So, the utlity model has simple and reasonablely, save raw material to greatest extent and cost is lower, handling ease can realize that big travel compression can guarantee the characteristics of enough supporting forces again, can be widely used among the various pressure-controlled full automatic electric pressure cookers.

Claims

1. the resilient supporting unit of a pressure controlled electric pressure cooker, include shell fragment (1) and outer pot (2), the bottom surface that it is characterized in that outer pot (2) is provided with the annular boss that raises up (21) that the bottom of a pan circumferentially distributes outside at least 3 edges, a shell fragment (1) is set on each annular boss (21), and annular boss (21) contacts support with shell fragment (1) lower surface and shell fragment (1).

2, the resilient supporting unit of pressure controlled electric pressure cooker according to claim 1 is characterized in that the number of described annular boss (21) is identical with the feet number of the electric pressure cooking saucepan heat-generating disc of corresponding use.

3, the resilient supporting unit of pressure controlled electric pressure cooker according to claim 2 is characterized in that above-mentioned shell fragment (1) is tabular or dish shape.

4. the resilient supporting unit of pressure controlled electric pressure cooker according to claim 3, it is characterized in that each annular boss that raises up (21) on above-mentioned outer pot (2) bottom surface is the annular of complete closure, or the discontinuous annular of forming by several sections segmental arcs or several salient points.

5, the resilient supporting unit of pressure controlled electric pressure cooker according to claim 4, it is characterized in that the diameter of the diameter of above-mentioned shell fragment (1), and the internal diameter of annular boss (21) is greater than the external diameter of the electric pressure cooking saucepan heat-generating disc feet of correspondence use greater than annular boss (21).

6. the resilient supporting unit of pressure controlled electric pressure cooker according to claim 5 is characterized in that the height of the annular boss that raises up (21) on above-mentioned outer pot (2) bottom surface is 1～6 millimeter.