CN2636399Y

CN2636399Y - Pressure switch

Info

Publication number: CN2636399Y
Application number: CN 03267834
Authority: CN
Inventors: 郭启强
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-07-19
Filing date: 2003-07-19
Publication date: 2004-08-25
Anticipated expiration: 2013-07-19

Abstract

A pressure switch is provided, which is mainly composed of a lower elastic piece with a top, a contact and an upper elastic piece. The lower elastic piece, a metallic piece with the contact and the upper elastic piece are fixed together in sequence via an insulator; the upper elastic piece is composed of a middle positioning piece, an elastic piece at two sides of the middle positioning piece and an opening type elastic piece positioned under the elastic piece at two sides; the external brim of the elastic piece at two sides bends downwards; the external brim of the opening type elastic piece is positioned on the external brim of the elastic piece at two sides; the contact is positioned at corresponding contact on the internal brim of the opening type elastic piece; the external brim of the middle positioning piece also bends downward; an arc elastic piece is positioned on the internal brim of the opening type elastic piece and the external brim of middle elastic piece; an insulation post is arranged on the external brim of the lower elastic piece and the elastic piece at two sides. Compared with existing technology, the utility model has the advantages that: it can directly test the pressure inside a pressure cooker and make timely response.

Description

A kind of pressure switch

Technical field:

The utility model relates to a kind of contact switch.

Background technology:

The pressure control of existing electric pressure cooker is the pressure that comes the controlled pressure pot by thermostat by the control temperature, this kind pressure controling mode is when the thermostat operate as normal, though the also pressure of controlled pressure pot preferably, but owing to be to come controlled pressure by temperature indirectly, malfunctioning or thermostat test point is accurately during the temperature in the detected pressures pot when thermostat, pressure in the pressure cooker will be out of control, produces dangerous.

Summary of the invention:

The pressure switch that goal of the invention of the present utility model is to provide the pressure in the direct detected pressures pot of a kind of energy also in time to react.

The utility model is to realize like this, main by the following shell fragment that has holder, contact, last shell fragment mechanism constitutes, following shell fragment, the sheet metal that has contact, last shell fragment mechanism is fixed together by insulator successively, last shell fragment mechanism is by the interfix sheet, be positioned at the shell fragment of interfix sheet both sides, the openning shape shell fragment that is positioned at below the shell fragment of both sides constitutes, both sides shell fragment outer rim bends downwards, the outer rim of openning shape shell fragment is fixed on the outer rim of both sides shell fragment, the corresponding contact of the inner edge of openning shape shell fragment place also is provided with contact, the outer rim of interfix sheet is down bending also, the intermarginal bow-shaped shrapnel that is provided with outside openning shape shell fragment inner edge and middle shell fragment, the intermarginal insulated column that is fixed with outside following shell fragment outer rim and both sides shell fragment.During work, the utility model is fixed on the bottom in the middle level of pressure cooker, the holder of following shell fragment heads on the bottom surface in middle level, because the pressure cooker inner bag is fixed in the middle level by pot cover, and the middle level side is fixed on the upper port of shell by the outer rim above the middle level, when the heating of pressure cooker inner bag is boosted, inner bag moves down under the effect of pressure, by the downward pushing tow of the heating plate of inner bag bottom surface middle level, the bottom, middle level is moved down, promote shell fragment down by holder, following shell fragment promotes to move on both sides shell fragment and the openning shape shell fragment by insulated column, when openning shape shell fragment outer rim is crossed bow-shaped shrapnel and middle shell fragment connecting line, under the effect of bow-shaped shrapnel, move on the openning shape shell fragment inner edge, the drive contact leaves the contact on the sheet metal, thereby power supply is disconnected, pressure cooker no longer heats, when the temperature decline of pressure cooker, after pressure reduces, the very long reinstatement in middle level, at this moment, openning shape shell fragment moves down under the drive of following shell fragment, when openning shape shell fragment moves down when crossing bow-shaped shrapnel and middle shell fragment connecting line, under the effect of bow-shaped shrapnel, openning shape shell fragment inner edge moves down, and drives contact and leans against on the contact on the sheet metal, power supply recloses, and pressure cooker is reworked.

Here, also be provided with a positioning block, locating piece is fixed in the shell fragment mechanism by insulator, is provided with adjusting screw(rod) on locating piece, is fixed with the insulation pillar below the adjusting screw(rod), and the insulation pillar leans on middle shell fragment.Like this, by adjusting screw(rod), insulation pillar, regulate the distance of bow-shaped shrapnel between connecting line on the middle shell fragment and openning shape shell fragment, the pressure oscillation scope of regulating starting switch.

In order to improve sensitivity of the present utility model, the lower end of insulation pillar is taper, and the interfix sheet of corresponding taper insulation pillar is provided with depression.

Holder on the following shell fragment is threaded in down on the shell fragment.Because holder is adjustable, so just made things convenient for the distance of regulating holder and bottom surface, pressure cooker middle level, thus the size of regulating pressure cooker pressure.

Compared with the prior art the utility model has pressure in the direct detected pressures pot of energy and the advantage of in time reacting.

Description of drawings:

Fig. 1 is a structural representation of the present utility model.

Embodiment:

Now in conjunction with the accompanying drawings and embodiments the utility model is described in further detail:

As shown in the figure, the utility model is mainly by the following shell fragment 2 of the holder 1 that is threaded, the copper sheet 4 that has silver contact 3, last shell fragment mechanism 5 constitutes, the nut thread on shell fragment 2 two sides is fixed on down on the shell fragment 2 holder by being positioned at down, copper sheet 4, be equipped with connecting ear in the last shell fragment mechanism 5, following shell fragment 2, copper sheet 4, last shell fragment mechanism 5 is fixed together by insulator 18 successively, last shell fragment mechanism 5 is by interfix sheet 6, be positioned at the shell fragment 7 of interfix sheet 6 both sides, being positioned at both sides shell fragment 7 following openning shape shell fragments 8 constitutes, shell fragment 7 outer rims 9 in both sides bend downwards, the outer rim of openning shape shell fragment 8 is fixed on the outer rim 9 of both sides shell fragment 7, inner edge 10 corresponding silver contacts 3 places of openning shape shell fragment 8 also are provided with silver contact 11, the outer rim 12 of interfix sheet 6 is down bending also, be provided with bow-shaped shrapnel 13 at openning shape shell fragment 8 inner edges 10 and 12 of middle shell fragment 6 outer rims, be fixed with insulated column 16 in following shell fragment 2 outer rims 14 and 9 of both sides shell fragment 7 outer rims.Also be provided with a positioning block 17, locating piece 17 is fixed in the shell fragment mechanism 5 by insulator 18, on locating piece 17, be provided with adjusting screw(rod) 19, be fixed with insulation pillar 15 below the adjusting screw(rod) 19, insulation pillar 15 leans on middle shell fragment 6, the lower end of insulation pillar 15 is taper, and the interfix sheet 6 of corresponding taper insulation pillar 15 is provided with depression 20.

Claims

1, a kind of pressure switch, it is characterized in that main by the following shell fragment that has holder, contact, last shell fragment mechanism constitutes, following shell fragment, the sheet metal that has contact, last shell fragment mechanism is fixed together by insulator successively, last shell fragment mechanism is by the interfix sheet, be positioned at the shell fragment of interfix sheet both sides, the openning shape shell fragment that is positioned at below the shell fragment of both sides constitutes, both sides shell fragment outer rim bends downwards, the outer rim of openning shape shell fragment is fixed on the outer rim of both sides shell fragment, the corresponding contact of the inner edge of openning shape shell fragment place also is provided with contact, the outer rim of interfix sheet is down bending also, the intermarginal bow-shaped shrapnel that is provided with outside openning shape shell fragment inner edge and middle shell fragment, the intermarginal insulated column that is fixed with outside following shell fragment outer rim and both sides shell fragment.

2, according to claim described 1 described pressure switch, it is characterized in that also being provided with a positioning block, locating piece is fixed in the shell fragment mechanism by insulator, is provided with adjusting screw(rod) on locating piece, be fixed with the insulation pillar below the adjusting screw(rod), the insulation pillar leans on middle shell fragment.

3, according to claim described 1 or 2 described pressure switches, the holder under it is characterized in that on the shell fragment is threaded in down on the shell fragment.

4, according to claim described 1 or 2 described pressure switches, the lower end of the pillar that it is characterized in that insulating is taper, and the interfix sheet of corresponding taper insulation pillar is provided with depression.