CN2187745Y - Clutch type electric closing device for gas utensil - Google Patents

Abstract

The utility model relates to a clutch type electric switch device for a gas appliance, which is formed in the way that a miniature motor is connected with a set of transmission assemblies and an electromagnetic core type clutch installed in a machine shell and is connected with an isolating switch after the miniature motor is connected with a speed-changing gear set. By the operation of the motor and the lifting actions of the transmission assemblies, the electromagnetic core type clutch can rise integrally to switch on a gas supply valve plug, then, the switch action is cut off to make the motor switch off to stop rotating. Meanwhile, an upper and a lower iron cores of the electromagnetic core type clutch are still sucked by magnetic force for keeping the opening state of the valve. If the upper and the lower iron cores are separated without the magnetic force, the valve can be closed tightly by the gas valve plug because of the restoring force of a spring.

Description

Clutch type electric closing device for gas utensil

The utility model relates to a kind of electronic headstock gear of disengaging type of gas appliance, belongs to the keying valve technology field of gaseous fuel.

Now, it is the headstock gear of power supply that gas appliance is used dry cell, day by day popularizes and is accepted by the consumer.Because be direct current supply, the not worry of electric shock, but because of voltage low (only DC1.5 volt), electric current is little, present product is to adopt a kind of coal gas valve for pressure difference mostly, is aided with the main valve plug switching motion that a small-sized vacuum solenoid valve is controlled gas appliance again, realizes the full automatic working function.This device is the valve plug switch motion by vacuum solenoid valve, causes the pressure inequality or the balance of valve for pressure difference interior diaphragm both sides air chamber, opens and closes the main valve plug of gas appliance.Its shortcoming is the restriction that the keying of valve plug must be subjected to gas pressure, and gas pressure also the pressurized difference limen influence and output pressure is reduced; In addition, the mechanism components of vacuum solenoid valve is easily given birth to fault, inconvenient maintenance because of exposing to the open air for a long time in coal gas; Also need connect a gas balance conduit and a venting control pipeline as the coal gas that ignites, uneconomical again during assembly fee.

The purpose of this utility model provides a kind of electronic headstock gear of disengaging type that overcomes existing gas appliance headstock gear defective.

The utility model includes: micro-machine, train of reduction gears, casing, drive disk assembly, electromagnet core type clutch and cut-out switch, wherein motor is packed on the extending seat of casing, and link to each other with train of reduction gears, one end of casing is fixed on the body of jet, it is characterized in that: the output of train of reduction gears is connected with the swingle of transmission component, this swingle stretches in the casing and the section interlock of elevating lever intersects vertically, a compression spring is equipped with on the top of this elevating lever, the upper iron core of its lower end and electromagnet core type clutch is affixed, the following iron core and the valve cock stem of this clutch that magnetizing coil is housed in it is affixed, this valve cock stem stretches in the body of jet, its end fit is fixed with a nationality and helps its outside compression spring and the rubber valve plug of closing valve, on casing inner wall, near the cut-out switch is installed near the electromagnet core type clutch, the shake-up spring leaf of cut-out switch is then opened up to stretch and is installed in downside unshakable in one's determination under the clutch.

The utility model novel structure, assembling easily can be subjected to the restriction of gas pressure during action and directly open coal gas, and fault rate is low.The member of device is sturdy and durable, does not stretch in the coal gas, and is not perishable, can make gas appliance realize more extensively effectively Automatic Control operation.

Following conjunction with figs. describes characteristics of the present utility model and effect in detail.

Fig. 1 is the combination generalized section of the utility model embodiment.

Fig. 2 be the utility model embodiment the action schematic diagram.

After Fig. 3 is the action of the utility model embodiment, the Open valve schematic diagram.

Consult Fig. 1, the utility model mainly connects a train of reduction gears 33 by a miniature motor 10, connects a transmission component 20 again and is located at that electromagnet core type clutch 12 in the casing 15 and motor off switch 38 formed.Motor 10 is packed on the extending seat 36 of casing 15, and the rotating shaft of this motor 10 links to each other with train of reduction gears 33, and the other end of train of reduction gears 33 connects the swingle 2 of transmission component 20.Transmission component 20 mainly is made up of a swingle 2 and elevating lever 8, this swingle 2 respectively cuts open with elevating lever 8 places of intersecting vertically and establishes an otch interlock, when swingle 2 is done the swing circle motion, elevating lever 8 is also done action up and down reciprocatingly thereupon, these elevating lever 8 tops are subjected to spring 35 pressure holdings, and the upper iron core of lower end and electromagnet core type clutch 12 is affixed.This electromagnet core type clutch 12 is made up of with following 27 unshakable in one's determination upper iron core 13, magnetizing coil 6; upper and lower unshakable in one's determination 13,27 are bonded with a protective sleeve 14 respectively; following 27 affixed valve cock stems 17 unshakable in one's determination; these valve cock stem 17 bottoms are stretched in the jet body 30, and the end fit of this valve cock stem is fixed with a rubber valve plug 24 of closing valve with compressing spring 23 at ordinary times.After establishing magnetizing coils 6 energisings that are packed in down in the middle of unshakable in one's determination 27 when ring, the following electromagnetic attraction that produces unshakable in one's determination, attract upper iron core near and adhesive (consulting Fig. 2), when whole group electromagnet core type clutch 12 to top offset, will Open valve, the path that turns on the gas-fire (consulting Fig. 3).Otherwise, after magnetizing coil 6 outage, upper iron core 13 and unshakable in one's determination 27 release magnetic and separate down, following 27 nationality pressing aids unshakable in one's determination contract spring 23 elastic force and descend, make rubber valve plug 24 valve-off immediately, also promptly recover Fig. 1 state.The cut-out switch 38 of motor is installed in casing 15 inwalls, its touch spring leaf 3 stretch into electromagnet core type clutch 12 the lower end and by pressure holding, this cut-out switch 38 is a normally closed contact at ordinary times, power supply is able to by supplying with the power of motor 10, when electromagnet core type clutch 12 is done behind top offset, cut off shake-up spring leaf 3 releases of switch 38 and go up bullet and cut off circuit (consulting Fig. 3), motor 10 just stops operating.So the running of motor 10 just is used for the moment of Open valve, power consumption is very little; Behind valve opening, this device only needs the small electric weight of the magnetizing coil 6 of supply electromagnet core type clutch 12, just can keep the open function of valve, realizes the result of use of economic power saving.

Working procedure of the present utility model is: if this device obtains a voltage, motor 10 powers up simultaneously with the magnetizing coil 6 of electromagnet core type clutch 12, (consulting Fig. 2) motor 10 rotates, and after train of reduction gears 33 is slowed down, makes the swingle rotation that is attached thereto the transmission component 20 that connects.Because swingle 2 changes with the angle of articulation of elevating lever 8, is subjected to the contention effect of spring 5 again, and the upper iron core 13 of affixed with it clutch 12 is slowly descended, and unshakable in one's determination 27 draw close down, power up mutual adhesive behind the logical magnetic because of magnetizing coil 6 again.At this moment, the swingle 2 of transmission component 20 has rotated half cycle, when then rotating other half cycle again, consults Fig. 3, and electromagnet core type clutch 12 is whole also thereupon to top offset; At this moment, cut off switch 38 actions, cut off the power supply of motor 10 and make it to stop operating; But magnetizing coil 6 still powers up, and upper and lower unshakable in one's determination 13 and 27 still are in the magnetic state, and coal gas path (valve) also still is held open state, makes coal gas can continue circulation.If the power supply of shearing device, upper iron core 13 and following unshakable in one's determination 27 is released magnetic and is separated, and because of the recovery elastic force that compresses spring 23 makes valve closing, forbids the coal gas circulation, is returned to Fig. 1 state again.

In a word, when the utility model uses, need not be subjected to the control of gas pressure and direct opening/shutting valve also needn't connect conduit, the pressure of coal gas output can not descend, and these characteristics all are the improvement places of existing coal gas valve for pressure difference formula headstock gear.In a word, the utility model is the gas appliance headstock gear that a kind of use is more safe and reliable, automaticity is higher.

Claims (1)

1, the electronic headstock gear of a kind of disengaging type of gas appliance, include micro-machine, train of reduction gears, casing, drive disk assembly, electromagnet core type clutch and cut-out switch, wherein motor is packed on the extending seat of casing, and link to each other with train of reduction gears, one end of casing is fixed on the body of jet, it is characterized in that: the output of train of reduction gears is connected with the swingle of transmission component, this swingle stretches in the casing and the section interlock of elevating lever intersects vertically, a compression spring is equipped with on the top of this elevating lever, the upper iron core of its lower end and electromagnet core type clutch is affixed, the following iron core and the valve cock stem of this clutch that magnetizing coil is housed in it is affixed, this valve cock stem stretches in the body of jet, its end fit is fixed with a nationality and helps its outside compression spring and the rubber valve plug of closing valve, on casing inner wall, near the cut-out switch is installed near the electromagnet core type clutch, the shake-up spring leaf of cut-out switch is then opened up to stretch and is installed in downside unshakable in one's determination under the clutch.

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