CN2266359Y

CN2266359Y - Lacking water automatic protecting electric heating tea kettle

Info

Publication number: CN2266359Y
Application number: CN 96200221
Authority: CN
Inventors: 王静
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-04-09
Filing date: 1996-04-09
Publication date: 1997-11-05
Anticipated expiration: 2006-04-09

Abstract

The utility model relates to a lacking water automatic protecting electric heating tea kettle with automatic protection function, composed of a kettle body, an electric heating pipe, a supporting seat, a power socket, an automatic power brake system, and a making current indicator light. When the kettle is not added with water or is in the shortage of water, the circuit can not be connected or can be cut automatically so as to effectively protect the electric heating pipe from being broken for the electric heating pipe is burned with less water or no water. The utility model is used safely and reliably, and can be used for burning water at home or other places provided with power supply.

Description

The automatic protection electric heating of lack of water teapot

The utility model relates to the automatic protection electric kettle of a kind of lack of water, especially a kind of electric heating teapot of being made up of kettle body, electrothermal tube, support foot, supply socket head, outage system automatically etc.

Known its structure of electric heating teapot of selling on the market is such: in metal kettle body electrothermal tube is housed, the external supply socket head that is provided with energising usefulness of kettle, the water that in kettle, adds capacity during use, make its electrothermal tube not have in the entry fully, promptly can connect power supply, when anhydrous in the kettle or water level are lower than electrothermal tube, the about clock more than a minute in energising back, just will cause that electrothermal tube is empty to be burnt and damage, many times, the user because forgotten to add water or busy left of a specified duration, after opening, water fails to find, so that water is evaporated, and water level is reduced to below the electrothermal tube, thereby cause it to burn.

Task to be solved in the utility model provide a kind of in kettle when anhydrous power supply can not connect, can cut off the power supply automatically during lack of water, the empty automatic protection formula electric heating teapot that burns of electrothermal tube can not appear.

The utility model is achieved in that on by kettle body 1, electrothermal tube 2, support foot 3, supply socket 4 a common electrical teapot of forming.On connecting between its electrothermal tube 2 and the supply socket 4, often drive microswitch 7 for one, on at the bottom of the kettle, constitute by supporting base 31 and support column 33, in the support foot 3, add an elasticity thing 32 between its kettle body 1 and the support column 33, a leverage is set below the source jack-socket on the kettle body 4, one end of leverage is linked to each other with support column 33, the other end links to each other with movable contact on often driving microswitch 7, when being subjected to certain pressure on the support foot 3, elasticity thing 32 is compressed, and moves on the support column 33, drives lever end simultaneously and upwarps, then other end band the armature contact of often driving microswitch 7 and is pressed down, engage with fixed contact, otherwise, pressure not enough or when not having pressure then leverage 8 keep reset conditions, often drive microswitch 7, armature contact separates with fixed contact, and circuit is then obstructed.

When heat energising indicator on can also connecting between electrothermal tube 2 and the supply socket 4.

Technology of the present utility model is utilized the variation joint and the disconnection of control circuit automatically of water-in-kettle amount (weight); stopped the empty burning state of electrothermal tube that common electric heating teapot is easy to generate; prolong and protected the service life of electrothermal tube, have esy to use, safe and reliable, easy to manufacture, characteristic of simple structure.

The structural representation of Fig. 1 utility model,

Below in conjunction with accompanying drawing the utility model is described in further detail;

As can be known from Fig. 1, on common electric heating teapot, connected one between its electrothermal tube 2 and the supply socket 4 and often driven microswitch 7, a support foot 3 of close supply socket head on the electric heating teapot, at the bottom of its kettle 1 and support column 33 between install a spring 32 additional, one end of leverage 8 and the support column 33 under the spring 32 are fixedly linked, the other end of the lever then will armature contact of often driving microswitch 7 links to each other, load onto an indicator lamp often opening to connect between microswitch 7 and the supply socket 4, during use, in kettle, inject water, at least make electrothermal tube 2 not have upstream face fully, this moment, the weight of water-in-kettle was pressed on the support foot 3, and the spring 32 in it is compressed, and moved on the support column 33.The lever end that is connected on the support column 33 upwarps, and then drives armature contact and presses down with fixed contact and engage with often opening microswitch 7 end that links to each other, and connects power supply, and indicator lamp shows that circuit is connected.Otherwise the springs in the kettle in the anhydrous then support foot 3 are not compressed, support column 33 moves on not, and leverage 8 keeps motionless, often holds little col switch fixed contact and can not engage with armature contact, and after the energising, indicator lamp then can be not bright, is that circuit disconnects yet.

Claims

1, the automatic protection electric heating of a kind of lack of water teapot; by kettle body [1], electrothermal tube [2], support foot [3] and supply socket head [4], the system [5] of cutting off the power supply forms automatically; it is characterized in that: described automatic outage system [5] often opens the pressure sensing support foot [3] that microswitch [7] is contained in kettle body [1] bottom side by being connected between electrothermal tube [2] and the supply socket head [4], connects and leverage [8] that microswitch [7] are often opened in control is formed.

2, the automatic protection electric heating of lack of water as claimed in claim 1 teapot; it is characterized in that: described pressure sensing support foot [3] is by supporting base [31]; be contained in the expansion bearing post [33] in the supporting base [31] and be contained in the supporting base [31], the elasticity thing [32] between kettle body [1] and expansion bearing post [33] is formed.

3, as claim 1 and the automatic protection electric heating of 2 described lacks of water teapot, it is characterized in that: also be in series with an energising indicator [6] between described electrothermal tube [2] and the supply socket head [4].