CN202432558U

CN202432558U - Gravity-sensing safety gas range

Info

Publication number: CN202432558U
Application number: CN2012200308733U
Authority: CN
Inventors: 凌聿辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-01-31
Filing date: 2012-01-31
Publication date: 2012-09-12
Anticipated expiration: 2022-01-31

Abstract

The utility model relates to a gravity-sensing safety gas range which comprises a cooking range body formed by an oven support, a cooking range and a base and a gas inlet pipeline connected with a cooking range. The gravity-sensing safety gas range is characterized in that a gravity-sensing system is connected below the base of the cooking range body. The gravity-sensing system comprises an upper base, a bearing base, a lower base and an induction bridge. The upper base is fixedly connected with the base of the cooking range body. Four corners of the upper base are connected with four corners of the lower base through four elastic supporting columns, the bearing base is fixedly connected with the lower surface of the upper base, and the bearing base is connected with the induction bridge in contacting mode. The gravity-sensing safety gas range has the advantages that an automatic stop valve is controlled through a gravity-sensing method, namely careless use phenomena that users forget to close the gas range after the gas range is opened for a long time, or fire is put out by overflowed food and the like can be eliminated completely, gas without being burned is prevented from escaping from a stove, and use safety of the gas range is guaranteed.

Description

The sensor-type safe gas range of gravity

Technical field

The utility model belongs to gas range, relates in particular to the sensor-type safe gas range of a kind of gravity.

Background technology

Gas appliance is widely used in the family, but on kitchen range, still lacks safety device at present.The gas range that happens occasionally in the daily life open the back time long forget to close or overflowed food by fire extinguish to wait and use careless phenomenon, cause from kitchen range, overflowing without the coal gas that burns.Like untimely discovery and take measures, will cause blast and fire incident.Though all very desirable from the thermocouple flame-out protection device performance indications that Japan introduces, involve great expense, be difficult for being accepted by the user, be difficult to promote.Also useful electronic component is formed and is thought fiery protective device, because maintenance difficult, again must battery supply, and also can't obtain promoting.Chinese patent CN86209792 utilizes the mechanical flame-out protection device of memorial alloy; It has played protective effect; But owing to the limitation of structure, only be applicable to and install on the low retaining kitchen range when using, do not use on the height that is installed in extensive use, the middle-grade stainless steel kitchen range.

Patent application (application number 88208098), a kind of global function source of the gas kitchen range safety shutoff that stops working includes the excessive degree sensing mechanism that is made up of thermoreceptor, shape memory alloy spring, and the displacement of being made up of Bowden cable is from transmission mechanism with by thumb wheel, torsion spring.Pull out the executing agency that tooth axle sleeve and the two-way latch of elasticity are formed, it is characterized in that directly being connected with elastic positioning pin, the cross section is in the groove of rectangle, is in respectively in mutually perpendicular two different grooves, and alignment pin is stretched out in the guide; And the groove that has an one of which end to have to embed long handle or short handle gas appliance switch shaft in the executing agency, and the main shaft coaxial with switch shaft relies on jackscrew to be fixed on shift fork and the thumb wheel that can on main shaft, rotate on the main shaft being equipped with on the main shaft.Though above-mentioned prior art has been done improvement, but still weak point has been arranged.For example the flame-out safety shutoff of this patent is outside kitchen range, to assemble, and therefore assembling is difficult, and influences the moulding attractive in appearance of former kitchen range; Flame thermoreceptor in temperature sensor is bumped owing to adopt the sheet Copper Foil easily, the displacement distortion, and oxidation is burnt easily.

The utility model content

The utility model is in order to overcome deficiency of the prior art; Provide a kind of gravity sensor-type safe gas range; Adopt weight sensing mode control automatic stop valve; It is long and forget to close or overflow food the dangerous phenomenons that various improper use caused such as fire extinguishes are taken place promptly can to avoid gas range to open the back time fully, guarantees that gas range is safe in utilization.

The utility model is for realizing above-mentioned purpose; Realize that through following technical scheme the sensor-type safe gas range of a kind of gravity comprises the kitchen range body that is made up of kitchen range frame, kitchen range and base, the admission line that is connected with kitchen range; It is characterized in that: be connected with the gravity sensing system under the base of said kitchen range body; Said gravity sensing system comprises upper bed-plate, load-bearing base, lower bottom base and inductance bridge, and the base of said upper bed-plate and kitchen range body is affixed, and four jiaos of said upper bed-plates are connected for four jiaos with lower bottom base through four elastic supports; Said upper bed-plate lower surface is connected with the load-bearing base, and said load-bearing base and inductance bridge touch.

Said elastic support comprises support set and support column, pocketed springs and placing in the support set on the said support column, and four jiaos of said support set and upper bed-plate lower surfaces are affixed, and said support column is connected for four jiaos with lower bottom base respectively.

Said gravity sensing system is connected with microcomputer controller, and said microcomputer controller is connected with gas electromagnetic valve, and said gas electromagnetic valve is connected with source of the gas through admission line.

Said gravity sensing system optional holes beam sensor, said hole beam sensor is connected with microcomputer controller through amplifying circuit.

Said kitchen range side is provided with flame-out inductive probe, and said flame-out inductive probe is connected with microcomputer controller through signal amplification shaping circuit.

Beneficial effect: adopt gravity sensing mode control automatic stop valve; Promptly can eliminate fully gas range open the back time long forget to close or overflowed food by fire extinguish to wait and use careless phenomenon generation; Avoid from kitchen range, overflowing, guarantee that gas range is safe in utilization without the coal gas of burning.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the structural representation of gravity sensing system;

Fig. 3 is the structural representation of hole beam sensor;

Fig. 4 is the operation principle sketch map of hole beam sensor;

Fig. 5 is that circuit connects fundamental diagram.

The specific embodiment

Below in conjunction with preferred embodiment; Details are as follows to the specific embodiment that provides according to the utility model: see accompanying drawing for details; The sensor-type safe gas range of a kind of gravity; Comprise the kitchen range body that is made up of kitchen range frame 1, kitchen range 2 and base 3, the admission line (not shown) that is connected with kitchen range, be connected with the gravity sensing system under the base of said kitchen range body, said gravity sensing system comprises upper bed-plate 4, load-bearing base 6, lower bottom base 8 and inductance bridge 7; The base of said upper bed-plate and kitchen range body is affixed; Said upper bed-plate passes through four elastic supports 5 for four jiaos and is connected for four jiaos with lower bottom base, and said upper bed-plate lower surface is connected with the load-bearing base, and said load-bearing base and inductance bridge touch.Said elastic support comprises support set 5-1 and support column 5-2, pocketed springs 5-3 and placing in the support set on the said support column, and four jiaos of said support set and upper bed-plate lower surfaces are affixed, and said support column is connected for four jiaos with lower bottom base respectively.Kitchen range frame 1 plays the cook pot of usefulness of support, and kitchen range 2 is connected with gas pipeline, and base 3 is fixed together with upper bed-plate 4, fixing kitchen range, and four elastic supports 5 connect upper bed-plates 4 and lower bottom bases 8, and wherein mid portion is spring 5-3.After putting pot; Kitchen range body and upper bed-plate 4; And support set 5-1 can be owing to the increase of quality is sunk; Spring can adjustable range, and load-bearing base 6 is connected with upper bed-plate 4 and touches with inductance bridge 7 simultaneously, receives the weight change of self-supporting base 6 to give inductance bridge 7 pressure feedback.Said gravity sensing system is connected with microcomputer controller, and said microcomputer controller is connected with gas electromagnetic valve, and said gas electromagnetic valve is connected with source of the gas through admission line.Said gravity sensing system optional holes beam sensor, said hole beam sensor is connected with microcomputer controller through amplifying circuit.Said kitchen range side is provided with flame-out inductive probe, and said flame-out inductive probe is connected with microcomputer controller through signal amplification shaping circuit.

Operation principle:

The weighing measurement of gravity sensing system adopts commonly used at present and mature methods realizes.LOAD CELLS optional holes beam sensor; Four sheet resistance foil gauges 12; Stick on the strain regions of Kong Liang; Weigh Shi Kongliang the pressure P that produces by weighed object and system chassis to the effect of the holding power N of Kong Liang under the deformation of generation parallelogram, the dependent variable of beam and the output voltage of electric bridge are directly proportional with load.The Wheatstone bridge that is connected into by these four foil gauges with varying in weight and export the different voltages with different signal through amplifying circuit, is given after the small-signal that electric bridge is sent here is amplified after the A/D change-over circuit and is shown after the result treatment of microcomputer controller to ADC under the excitation that supplies bridge voltage.

The course of work:

When we are put into the thing of pot and adding on the kitchen range, the gravity sensing system below this moment can claim mass M 1 (being appreciated that dry weight) and feed back to CPU element for the band pot, combustion gas is got into by admission line; Afterwards through the electronic lighter sparking; Can steam this moment, boils, and stewes etc.This moment, we were provided with two other value, were respectively M2 and M3, M2=95%M1; M3=90%M1, these two values are that we configure and be loaded in the middle of the CPU, along with the increase of time; Mass M in the pot can diminish gradually, the gravity sensing system can continuous check weighing and and M2, the M3 value is compared; When M=M2, the gravity sensing control module can get into alarm condition, and the prompting owner closes gas valve.If have no talent this moment, the time can continue to increase, and M can continue to diminish.This moment, whether flame-out control module was surveyed flame-out always; Or do not have, continue alarm, if flame-out, then eliminate alarm.When reaching M=M3, the GRAVITY CONTROL unit then directly feeds back signal among the CPU, and this moment, CPU sent signal to gas electromagnetic valve accordingly, and gas electromagnetic valve can cut off admission line, thereby guarantees safety.

The above only is the preferred embodiment of the utility model, is not the structure of the utility model is done any pro forma restriction.Every technical spirit according to the utility model is to any simple modification, equivalent variations and modification that above embodiment did, all still belongs in the scope of technical scheme of the utility model.

Claims

1. sensor-type safe gas range of gravity; Comprise the kitchen range body that constitutes by kitchen range frame, kitchen range and base, the admission line that is connected with kitchen range; It is characterized in that: be connected with the gravity sensing system under the base of said kitchen range body; Said gravity sensing system comprises upper bed-plate, load-bearing base, lower bottom base and inductance bridge, and the base of said upper bed-plate and kitchen range body is affixed, and four jiaos of said upper bed-plates are connected for four jiaos with lower bottom base through four elastic supports; Said upper bed-plate lower surface is connected with the load-bearing base, and said load-bearing base and inductance bridge touch.

2. the sensor-type safe gas range of gravity according to claim 1; It is characterized in that: said elastic support comprises support set and support column; Pocketed springs and placing in the support set on the said support column; Four jiaos of said support set and upper bed-plate lower surfaces are affixed, and said support column is connected for four jiaos with lower bottom base respectively.

3. the sensor-type safe gas range of gravity according to claim 1 is characterized in that: said gravity sensing system is connected with microcomputer controller, and said microcomputer controller is connected with gas electromagnetic valve, and said gas electromagnetic valve is connected with source of the gas through admission line.

4. according to claim 1 or the sensor-type safe gas range of 3 described gravity, it is characterized in that: said gravity sensing system optional holes beam sensor, said hole beam sensor is connected with microcomputer controller through amplifying circuit.

5. the sensor-type safe gas range of gravity according to claim 1 is characterized in that: said kitchen range side is provided with flame-out inductive probe, and said flame-out inductive probe is connected with microcomputer controller through signal amplification shaping circuit.