CN2419506Y - Timing valve for gas burner - Google Patents

Abstract

A timing switch for a gas furnace is provided on the timer with a control board that rotates with the timer shaft. When the timing starts, the control board can control the opening of the gas valve switch. Return under the action of the valve, and at the same time the air valve switch follows the movement to realize the closing of the air valve switch. The utility model has the advantages of timing function, simple structure, easy operation, reliable operation and convenient use.

Description

The gas furnace time switch

The utility model relates to a kind of gas furnace time switch.

Existing gas furnace does not all have time switch, but (as smoked meal, steaming, boiled dinner product) all need to be grasped certain hour in use, this all must be by manually grasping, one inconvenience, two come also often easy appearance then to forget, food is burnt or overdo bad ediblely or the like, make troubles to the user.

The purpose of this utility model just provides a kind of can making and has gas furnace increase timing function now, makes it more convenient to use, and is simple in structure, easy and simple to handle, the gas furnace time switch of reliable operation.

Solution of the present utility model is such: timer is provided with the control panel that rotates with the timer rotating shaft, control panel is provided with the hole that the controller location supporting rod adapts, one end of control panel is connected with the cross bar that has the air-valve assembly rotation, and control panel pushes up to the left side under the elastic force effect.It is outer and regularly rotatable that control panel can move to the controller location supporting rod under external force; The cross bar that is connected on mutually on the timer when regularly finishing resets under the effect of elastic force, drives the air-valve assembly motion that is attached thereto by the motion of cross bar and realizes closing of air valve.During use, promote timer, control panel is moved on to outside the controller location supporting rod, at this moment, rotatable timer carries out timing, and control panel is followed timer and rotated, and the rectilinear motion of while cross bar is opened the switch of air-valve assembly, the gas furnace use of can lighting a fire; When timer turns to when regularly finishing, control panel forwards the position of controller location supporting rod to, to left movement, makes cross bar move return under the effect of elastic force, drives air valve switch and resets, and close switch.

The utility model has the advantages that to have timing function, simple in structure, easy and simple to handle, reliable operation, easy to use.

Accompanying drawing is embodiment of the present utility model.

The structural representation of accompanying drawing 1 the utility model closed condition.

Accompanying drawing 2 is B '-B ' cutaway views of accompanying drawing 1.

Accompanying drawing 3 is structural representations of the utility model open mode.

Accompanying drawing 4 is B-B cutaway views of accompanying drawing 3.

Accompanying drawing 5 is A-A cutaway views of accompanying drawing 3.

Structural representation when accompanying drawing 6 is air-valve assembly employing pressure lever type air valve.

Accompanying drawing 7 is structural representations of structure open mode shown in the accompanying drawing 6.

Accompanying drawing 8 is structural representations of timer 3 switch when adopting electronic timer.

Structural representation when accompanying drawing 9 is switch 27 closures.

Accompanying drawing 10 is switch 28 structural representations when normally closed.

Structural representation during accompanying drawing 11 disconnection that is switches 28 under the location drives 14.

The utility model is by knob 1, return spring 2, timer 3, timer shaft 4, controller location-plate 5, controller location supporting rod 6, gear 7, air valve revolves axle 8, air valve return spring 9, tooth bar 10, overall structure framework 11, cross bar 12, backstay 13, the location is 14, control panel 15, timer box a surname locating hole 16, timer box fixed bar 17, air valve ectosome 18, gas outlet 19, fuel gas inlet 20, air valve cock 21, air valve stage clip 22, iron plate 23, valve rod 24, flap 25, spring 26, switch 27, switch 28 is formed.

Timer 3 is provided with the control panel 15 that rotates with timer 3 rotating shafts, control panel 15 is provided with the hole that adapts with controller location supporting rod 6, one end of control panel 15 is connected with the cross bar 12 that has the air-valve assembly rotation, and control panel 15 pushes up to the left side under the elastic force effect.It is outer and regularly rotatable that control panel 15 can move to controller location supporting rod 6 under external force, the cross bar 12 that is connected on mutually on the timer 3 when regularly finishing resets under the elastic force effect, is driven the switch of the thin part motion of the air valve that is attached thereto realization air valve by the motion of cross bar 12.Described timer 3 can be a mechanical timer; It also can be electronic timer.Time switch and the operation principle that resets are: during timing working, depress knob 1, the outside of controller location supporting rod 6 is arrived in timer shaft 4, control panel 15, cross bar 12 accompany movements, can rotate the clockwork spring that knob 1 tightens in the timer this moment and carry out timing, controller location supporting rod 6 withstands control panel 15, and simultaneously, cross bar 12 drives the air-valve assembly motion, open air valve, the gas furnace work of can ventilating; Afterwards, rotation along with timer shaft 4, driving control panel 15 rotates, when turning to timing architecture, hole on the control panel 15 just forwards the position with controller backstay 6 to, and under the effect of elastic force, control panel 15 is enclosed within on the controller location supporting rod 6 return left, drive air-valve assembly simultaneously and close, realize the function of regularly closing.If do not need regularly on the basis of position shown in the accompanying drawing 3, timer knob to be rotated a down scale to counter clockwise direction, make location on the control panel 15 contact backstay 13 to 14 and get final product; Regularly close as need, on accompanying drawing 3 bases, switching knob is got final product to the scale that clockwise direction rotates to required timing.

When adopting mechanical timer, structure is shown in accompanying drawing (1,3), the described air-valve assembly that links to each other with cross bar 12 is meant with timer 3 cross bar 12 of following timer 3 motion that joins receives air-valve assembly, air valve switch is connected or is closed in the take offence motion of switch in the valve module of the moving belt of cross bar 12.Described reseting elasticity device can be the elastic force that withstands timer 3 upper springs 2; Also can be the elastic force that withstands on cross bar 12 upper springs 9; It can also be the elastic force summation of withstanding timer 3 upper springs 2 and withstanding on the spring 9 of cross bar 12.When described air-valve assembly switch is to adopt stopcock, in the time of as shown in Figure 1, cross bar 12 is to link to each other with the switch of air-valve assembly, has gear 7 in the stopcock cock 21, and gear 7 is meshed with tooth bar 10 on the cross bar.When described air-valve assembly switch is to adopt the pressure lever type air valve, there is the flap 25 that can block gas port the end of the valve rod 24 that joins with timer shaft 4, and valve rod 24 is provided with the reseting elasticity device.Its reseting elasticity device is to be made of the spring 26 that withstands on the flap 25, when regularly finishing, pushes valve rod 24 returns by spring 26, and the motion of valve rod 24 drives the pressure lever type air valve and opens or closes.

When timer 3 adopts electronic timer, can be provided with by timer timing moving-member and drive the switch of connecting down 27, switch 27 is connected the motor of electronic timer.A switch 28 can also be set, the effect of switch 27 is the time that control regularly finishes, and disconnects when regularly finishing, and the effect of switch 28 is uses of control timer, if do not use timer, the location on the control panel 15 is got final product 14 positions that turn to cut-off switch 28 by knob 1.When using timing function, depress knob 1 rotation regularly, mobile drive switch 27 closures of cross bar 12 are given regularly electrical power, driven by motor timer rotation timing, when regularly finishing, cross bar 12 returns, switch 27 disconnects, and the motor outage stops the stop timing process.Switch (27,28) is connected into polyphone, is not needing under the definition status, and the location disconnects switch 28 14, and then the motor dead electricity can't turn round.

Switching material of the present utility model can adopt metal or nonmetallic materials to make.

Claims (8)

1. A timing switch for a gas furnace, comprising a knob (1), a gas valve assembly, and a timer (3). It is characterized in that the timer (3) is provided with a control panel (15) that rotates with the timer (3) shaft, and The control board (15) is provided with a hole compatible with the controller positioning pole (6), and the control board (15) One end is connected with the crossbar (12) that has the air valve assembly to rotate, and the control panel (15) pushes toward left. 2. The gas furnace timing switch according to claim 1, characterized in that the timer (3) It can be a mechanical timer; it can also be an electric timer. 3. The gas furnace timing switch according to claims 1 and 2, characterized in that the said cross bar (12) The connected air valve assembly refers to a cross bar that is connected with the timer (3) and follows the movement of the timer (3) (12) receive the air valve assembly, and the cross bar (12) is provided with reset elastic device. 4. The gas furnace timing switch according to claim 3, characterized in that the reset elastic device The setting can be to withstand the elastic force of the spring (2) on the timer (3); The elastic force of spring (9); it can also be against spring (2) on timer (3) and against the cross bar (12) The elastic force summation of spring (9). 5. The gas furnace timing switch according to claim 3, characterized in that the gas valve assembly opens Close is to adopt rotary valve, cross bar (12) is to link to each other with the switch of air valve assembly, has on the rotary valve cock (21) Gear (7), gear (7) is meshed with the rack (10) on the cross bar. 6. The gas furnace timing switch according to claim 3, characterized in that the gas valve assembly opens Close is to adopt pressure bar type gas valve, and the end of valve rod (24) that joins with timer shaft (4) has the valve that can block gas. The disc (25) of the mouth is provided with a return elastic device on the valve stem (24). 7. The gas furnace timing switch according to claim 6, characterized in that the reset elastic device Placement is to be made of spring (26) on the valve clack (25). 8. The gas furnace timing switch according to claim 2, characterized in that the timer (3) adopts During electric timer, can be provided with the switch (27) that is connected under driven by timer timing moving parts, open Off (27) connects the motor of electric timer.

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