CN86203253U

CN86203253U - Cooker overflow-proof device with automatic open and alarm

Info

Publication number: CN86203253U
Application number: CN 86203253
Authority: CN
Inventors: 戴仲琦
Original assignee: Individual
Current assignee: Individual
Priority date: 1986-05-23
Filing date: 1986-05-23
Publication date: 1986-11-26

Abstract

The utility model relates to an overflow-proof device with automatic opening and alarming functions for a cooker, which can be arranged on various cookers and has automatic opening and alarming functions to prevent drippings from overflowing. The utility model is formed by combining a push rod, elastic thermosensitive elements, a micro-active switch and a casing. The utility model has the advantages of small size, easy application, material saving, care time saving during cooking and boiling foods, energy saving, and safety, and can keep cooking tools clean. The utility model is suitable for various household thermal sources and cookers and can replace hand-operated and complicated electronic mechanical operation in the occasion needing temperature control in industry.

Description

Cooker overflow-proof device with automatic open and alarm

The utility model is the device that is attached on the cooker, can be used as various cookers and prevents that soup juice from overflowing and take off lid automatically and report to the police.

The cooker that uses in the at present general family, when cooking or boil other food of burning, food boils to boil and rises the back if untimely lid or the reduction thermal source taken off can make soup juice excessive in the cooker, and the cooker of making dirty extinguishes burning things which may cause a fire disaster.If adopt the electric heat source heating, then can burn out electric heater and cause danger.When boiling similar food products such as burning milk, the easier soup juice that causes is excessive.Whether therefore people must keep by cooker, observe food and boil, so that take off lid at any time or reduce thermal source.Do so really and brought many troubles, wasted the time again to people.

The purpose of this utility model is to produce a kind of device that can take off lid automatically and report to the police, and this device is fastened on the cooker, when in the cooker during food boiling, takes off lid and warning automatically by this device, avoids the excessive of soup juice.

Formation of the present utility model is: (Fig. 2)

Adopt high temperature resistant non-toxic plastic or metal material to make housing (10), according to the shape of cooker, housing can be made the shape that matches with the cooker outer wall, and be installed on the top of cooker outer wall, housing and cooker are tightened together with several rivets (4).Die casting has vertical perforation in the housing, and spring (2) is housed in the bottom in hole, and other is with push rod (5) holddown spring of a vertical lift.Top at push rod has groove.Level has a hole of intersecting with vertical perforation in housing, thermally sensitive elasticity temperature-sensitive element (7) is housed in the hole, one end of this elasticity temperature-sensitive element is equipped with alignment pin (6), the groove of its head and push rod matches, withstand at normal temperatures push rod not reason spring power effect and rise.Microswitch (9) also is housed in housing, and shake-up is connected when risen by push rod in its contact, thereby exports a signal, connects the path of audible-visual annunciator or cut off the electricity supply to make thermal source reduce to certain definite value.The mode of reporting to the police can adopt light indication or music door-bell, and reminds people food boils.In the bottom of push rod, a circular cone platform (3) big with the little bottom, diameter top of push rod consubstantiality can be installed, its effect is that its inclined-plane is with the contacting of microswitch when push rod rises.An open amount is housed in the bottom of spring (2) regulates bolt (1), at an end of elasticity temperature-sensitive element (7) temperature controlling point is housed and regulates bolt (8), they can be regulated by trace, the size of opening with the control pot cover and the position of temperature controlling point.Also additional on housing have a manual lock screw (11), when this device need not or cooker in food need add a cover little fire baking the time, can regulate this screw and withstand push rod, the groove of its end and push rod is identical.

Basic principle of the present utility model is to adopt thermally sensitive elasticity temperature-sensitive element as sensor, and it and push rod, spring, microswitch etc. are the part appropriate combination in addition, finishes taking off lid automatically and report to the police cooker.The elasticity temperature-sensitive element can adopt shape memory alloy material usually, and it is generally Nitinol or copper, aluminium, kirsite.As required, but the P of this material of chosen in advance _SPoint (being parent phase formation temperature point---temperature controlling point) is positioned at certain numerical value, and the temperature of experiencing at it reaches P _SDuring point, shape memory alloy material can produce deformation and displacement.General P _SPoint can be controlled in-100 ℃～+ 150 ℃ scopes when the preparation material.In addition, also can adopt bimetal leaf as the elasticity temperature-sensitive element, because bimetallic is to be made by two kinds of different metal materials of the coefficient of expansion, when temperature raise, the control to push rod was finished in the displacement that bimetal leaf produced.

In conjunction with aluminium pan commonly used in the family using method of the present utility model is described.This device is fastened on a pot body top, can be delivered on the housing to guarantee the temperature in the pot.Temperature of being experienced on the housing and the interior certain ratio of temperature maintenance of pot.During use, depress push rod earlier, make push rod and pot edge keep same level, this moment, spring was compressed, and alignment pin enters the push rod groove and withstands that push rod is unlikely to be moved.Unscrew manual lock screw, added water and food in the pot, add a cover and boil burning (Fig. 4 a).Open amount regulates bolt and temperature controlling point adjusting bolt can disposablely mix up, and can use continuously.When food reaches predetermined temperature in the pot, the distortion of elasticity temperature-sensitive element drives alignment pin and produces displacement disengagement push rod groove, push rod is risen by the resilient force of spring and backs down the action of pot cover (Fig. 4 b) push rod drive simultaneously microswitch, the signal of output makes alarm equipment alarm or reduces thermal source, and reminds people is noted.Need add a cover little when baking fire when food in the pot, push rod is depressed, lock screw is tightened by hand, makes push rod not controlled by the elasticity temperature-sensitive element, breaking alarm simultaneously, until food boil burned till.

The utility model can be widely used in various cookers in the family (as pot, cup, kettle etc.) and thermal source (as electrothermal furnace, gas burner, coal stove etc.), especially suitable in the cooker of cooking, boil milk, owing to possessed microswitch, can external audible-visual annunciator, so in electric-heating cooking utensil, seem practicality and safety.The utility model is rational in infrastructure, and materials are economized, and are easy to implement.And volume is little, can be assemblied on the various cookers, has both saved the attended time that people hot plate food, has saved the energy again and has made that cooker keeps clean, safety.The utility model needing in the industry also to can be used for occasion that temperature is controlled, in order to instead of manual operation and complicated electric mechanical action.

Fig. 1 is a section of structure of the present utility model.

Wherein Fig. 4 a is main cutaway view; Fig. 4 b is left cutaway view; Fig. 4 c is the cutaway view of bowing.

Fig. 2 is the another kind of section of structure of implementing of the present utility model.

Fig. 3 is the section of structure that the utility model adopts bimetal leaf.

Fig. 4 is that the utility model is installed on the view on the cooker.

Wherein Fig. 4 a is for adding a cover view; Fig. 4 b covers view for taking off.

Embodiment 1:(Fig. 1)

Water respectively with cast aluminium or high-temperature resistance plastice and to cast out housing (10) and push rod (5), in housing, once be cast with vertical perforation and lateral aperture, be drilled with screw thread in the hole, regulate bolt (1), temperature controlling point adjusting bolt (8) and the adjusting of manual lock screw (11) do for open amount respectively and use.Position corresponding to lateral aperture on the push rod has groove, in the push rod bottom circular cone pylon (3) is arranged, little spring (2) with the steel wire coiling is pressed in the vertical perforation by push rod, alignment pin (6) head makes the ball face and the push rod groove coincide, elasticity temperature-sensitive element (7) adopts marmem to be processed into spring, and alignment pin places in the groove.Manual lock screw head is also made sphere and can be coincide with the push rod groove.Microswitch (9) places enclosure interior, and its contact and push rod keep in touch, and draws two leads in order to external audible-visual annunciator.Whole housing tightens together with three rivets (4) and cooker.The utility model can form a complete production network simultaneously with cooker, is attached on the various cookers after also can making separately.Overall dimensions is 15 * 50 * 50mm ³

Embodiment 2(Fig. 2):

Present embodiment is compared more simple with embodiment 1, alignment pin (6), elasticity temperature-sensitive element (7) and the temperature controlling point cancelled among the embodiment 1 are regulated bolt (8), and be that marmem replaces with elasticity temperature-sensitive element (7) with spring (2), when temperature reaches predetermined value in the cooker, the elasticity temperature-sensitive element will extend and withstand push rod toward rising and opening moving microswitch contact, finish and take off lid and warning automatically, other parts are identical with embodiment 1.

Embodiment 3(Fig. 3):

Present embodiment is compared with embodiment 1, only uses elasticity temperature-sensitive element (7) instead bimetal leaf, and increases a spring (12) and place bimetal leaf and temperature controlling point to regulate between the bolt (8).When temperature reached predetermined value in the cooker, bimetal leaf was crooked on one side to spring (12), and push rod is risen by the resilient force of spring (2) and finishes the action of taking off lid automatically and reporting to the police, and other parts are with embodiment 1.

Claims

1, cooker is taken off the anti-overflow device of lid and warning automatically, can be installed on the various cookers.It is characterized in that this device is combined by housing [10], push rod [5], elasticity temperature-sensitive element [7] and microswitch [9].

2, anti-overflow device according to claim 1 is characterized in that having on the push rod groove, and the push rod bottom is the big circular cone platform (3) in little bottom, diameter top, and spring (2) or elasticity temperature-sensitive element (7) are housed under the circular cone platform.

3, anti-overflow device according to claim 1 and 2, it is characterized in that being equipped with on the housing the fixedly manual lock screw (11) of push rod, be equipped with at an end of spring (2) or elasticity temperature-sensitive element (7) that open amount is regulated bolt (1) or temperature controlling point is regulated bolt (8).

4, anti-overflow device according to claim 1 is characterized in that the elasticity temperature-sensitive element adopts marmem or bimetal leaf, and housing and push rod employing cast aluminium or high-temperature resistance plastice die casting respectively form.