CN2120976U - Timer for gas stove - Google Patents

Abstract

The utility model relates to a timer for a gas stove, which is a mechanical timer. The utility model is composed of a controlling part which is composed of a timing part and three gear wheels. Incomplete gear wheels are arranged on a timing knob shaft; therefore, the energy storage for control and timing is accomplished with only one spring. The utility model has the advantages of convenient operation and low manufacturing cost. The timer for a gas stove can be conveniently installed on a gas stove in the precondition that the gas stove is not changed. Thus, the timer for a gas stove solves the problems that long-time deflation is resulted from that ingle is put out due to the overflow of boiled water, a kettle is burned dry because fire is forgotten to be turned off, rice is half cooked or rice is cooked into paste due to the fact that time is misremembered when the rice is steamed, etc. are solved for users.

Description

Timer for gas stove

The utility model relates to a kind of mechanical timer.

Existing timer exists owing to control is little the directly defective of control action.Can only control because control is little very heavy, must could control action by the other spring of very heavy control.So just must give two spring energy-storages respectively, thereby bring behaviour to do inconvenience.Locking device as alarm clock.Existing regularly just can only the control apparatus switch under the prerequisite that does not add spring in addition, control is moving to be done and finished by the electric switch control apparatus, as Chinese patent 87108021 stove mouth automatic closing devices, other adds spring or the increase control apparatus all will be led the increase of system manufacturing cost and the probability that increase is broken down.This gas burner timer does not need gas burner is done under the prerequisite of any change in the use that does not influence the stove switch, only just satisfies the control of gas cooker switch and the energy storage of timer with a spring.

This gas burner timer solved may occur when cooking owing to the time of misremembering cooks half-cooked rice or meal is cooked paste; When making boiling water and occur forgetting that the turn out the gas stove dryouies kettle or put stove fire out by water and a series of problems such as deflation occur owing to Hu Shui overflows.Use this timer can save the time of cooking and saved indirectly owing to cook, do the out-of-date gas charge of water, and reduced gas purging amounts such as CO, CO2.Therefore use this gas burner timer not only to can be the end user and save gas charge spending but also useful social environment.

The purpose of this utility model is that a kind of follow-on timer will be provided, and it can reduce the cost of timer effectively, reduces the probability break down, and be convenient to behaviour do, moving do reliable.

The purpose of this utility model is achieved in that and changes the gear on the rotation axis of timer 4 into incomplete gear, thereby regularly does usefulness when imperfect gear 4 is rotated counterclockwise when releasing energy to rise by the gear train of part regularly in the part that tooth is arranged; Drive control gear group works the control action of controlling gas cooker switch on the AB section of tooth not having.Thereby reaching reduces cost be convenient to behaviour do.

So the utility model is simple especially because only need to change gear 4 into imperfect gear structure on existing timer.Owing to need not increase electric equipment, so the chance that breaks down has reduced, owing to need not give two groups of springs energy storage respectively, institute is so that operation in addition simultaneously.Since simple in structure, therefore moving doing reliably, with low cost.

Concrete structure of the present utility model is provided by following examples and accompanying drawing thereof.

Describe the details and the working condition of concrete device of the present utility model in detail below in conjunction with accompanying drawing.

Fig. 1 is the profile according to the gas burner timer that the utility model proposes.

This gas burner timer is made up of timing part E and control section F

Regularly part E is made up of clockwork spring source and gear parts.

Clockwork spring 7 be hooked on the II wheel shaft be by 0, the steel band of 5-1mm rolls and forms, in order to control gas cooker switch, the torque of clockwork spring should be greater than the friction torque of gas burner between 2-5Kgcm, therefore the torque of getting the pretension clockwork spring is 6Kgcm, during use, by turn-knob 13 clockwise rolling-in clockwork spring storage potential energy, this is equivalent to winding up of clock and watch by manpower.Then clockwork spring just self-relaxation revolve and leave with energy storage capacity, to gear drive part and control section transmission power.

The gear drive part: the six roots of sensation gear shaft II of this part, III, IV, V, VI, VII are fixed by train wheel bridge 6 lower plate II, having four gears is contained in respectively on II, III, IV, the V axle and on the IV axle ratchet 8 is housed also, II axle to the gear on the IV axle meshes successively, the VII axle is equipped with oscillator 10, by 9 damping actions of balancing point on the oscillator, the gear teeth of ratchet 8 are stirred balancing point, relative distance between change oscillator and ratchet can be adjusted the precision of timer, and different gear combination can be adjusted the longest timing.

Mechanical wear when winding up and the torque when reducing to wind up for alleviating, slotted hole is made in the hole of III axle on clamping plate, when winding up, the pressure that the III axle overcomes little spring 12 makes III shaft gear and IV shaft gear break away from engagement, after having gone up clockwork spring, the III axle resets by the pressure of little spring 12, and III shaft gear and IV shaft gear recover engagement.

Control section F is made up of with the imperfect gear 1 that is fixed on the gas cooker switch rotation axis D the gear 2 that is fixed on the imperfect gear 3 on the II and plays guiding and clutch action in the centre.

The working condition of control section is described below in conjunction with Fig. 2, Fig. 3.

Fig. 2 closes at gas burner, and the unwound state of timer, gear 2 are to be fixed on the I, and can be to rotate up and down in the crescent moon slotted hole of center at clamping plate around the axle II with the axle I, imperfectly when timer is not wound up takes turns 3 and will just in time break away from wheel 2.Therefore gas cooker switch at this moment is free to rotate.

Timer turn-knob imperfect gear 3 driven gears 2 that turn clockwise rotate, and gear 2 is still the next, so the switch motion of the wind up action and the gas burner of timer is independent of each other.

Rotate counterclockwise when not arriving gear 2,3 engagements at the timer self-relaxation, gear 2 is still the next, therefore still do not influence the action of gas cooker switch.

When gear 3 continues to be rotated counterclockwise with gear 2 engagements, will promote gear 2 and arrive the upper Fig. 3 of opinion.

Shown in Figure 3 is that gas burner is leaving, and the state that timer is about to control gas burner when closing is when the timer rotation continues to rotate counterclockwise, and intact gear 4 will forward B point to and the engagement of disengaging gear 5 loses the damping of timing gear group, and moment turns over the AB section.At this moment the energy of clockwork spring will be controlled imperfect gear 1 by coaxial imperfect gear 3 driven gears 2 and finish the task of closing gas burner, get back to state shown in Figure 2.

Claims (1)

1, this gas burner timer belongs to mechanical timer, it is made up of timing part E and control control section F, control section F has comprised that clutch does that the gear 2 of usefulness is engaged with is fixed on the imperfect gear 1 on the gas cooker switch axle D and is fixed on imperfect gear 3 on the timer knob axle I, it is characterized in that on the timer knob axle I that regularly gear in the part is 4 is imperfect gears.

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