CN2262149Y

CN2262149Y - Electromagnetic cut-off valve for household gas burning device

Info

Publication number: CN2262149Y
Application number: CN 96215705
Authority: CN
Inventors: 张德鑫
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-07-17
Filing date: 1996-07-17
Publication date: 1997-09-10
Anticipated expiration: 2006-07-17

Abstract

The utility model relates to an electromagnetic cut-off valve for a household gas burning device, which is mainly composed of a valve body, a valve rod, a magnetic core and a coil. A cylinder is arranged on the upper part of the valve body; a plunger is arranged in the cylinder; a spring is arranged on the valve rod on the plunger; a groove is arranged on the position of the valve rod extending outside the cylinder. One end of a level controlled by the coil and the magnetic core can be inserted into the groove for tightly locking; the opening of a valve can be kept; or the level is disengaged from the groove; the valve can be closed through the plunger is pressed for moving by the spring. The electromagnetic cut-off valve of the utility model is different to an ordinary electromagnetic valve; the structure of the utility model is reliable; the fail can not happen; the high safety of the gas burning device can be assured.

Description

The domestic gas electromagnetic shut-off valve

The utility model relates to the safety device of domestic gas cooking stove.

There is disaster to take place during the use of current because combustion gas, old man particularly, problem takes place in child easily, and personnel's poisoning also repeatedly takes place in gas water-heater, and therefore some die.The someone has invented fuel gas alarm at present, but can only report to the police, and hears that as nobody it also is otiose that alarm signal or handicapped people can not in time get rid of.

The present domestic imitative day Emergeny Cutoff Valves (Beijing valve plant product) that produces only is applicable to industrial pipeline, when the condition of a fire takes place after, temperature raises and could close automatically, and Chinese patent ZL89205360, the gas cooker warning automatic control device that ZL93224724 and ZL93224726 etc. are mentioned, generally convert electrical signal to through amplifying rear driving relay adhesive or release by the detected combustible gas leakage signal of gas sensitive element, thereby the loudspeaker that make its control are reported to the police and solenoid valve are cut off source of the gas, this apparatus structure complexity, reliability is relatively poor, particularly its employed solenoid valve is to control first guide valve with electromagnet core, utilize medium self opened by pressure, close, so it moves not accurate enough sensitivity, speed is slower, itself also often breaks down solenoid valve, after hidden danger occurs, in case break down the generation that will cause the accident.

The purpose of this utility model promptly is at above-mentioned the deficiencies in the prior art part, comprise and have only the problem that aspects such as the Emergeny Cutoff Valves that could close automatically after the back temperature raises and the general not accurate enough sensitivity of the more action of solenoid valve failure take place when the condition of a fire, and a kind of practical safe and reliable domestic gas electromagnetic shut-off valve is provided.

This practical purpose is achieved through the following technical solutions:

A kind of domestic gas electromagnetic shut-off valve, mainly form by valve body, valve rod, magnetic core, coil, on the top of valve body (1) cylinder barrel (5) is housed, piston (4) is housed in cylinder barrel (5), and a spring (6) being set on the valve rod (7) on piston (4) and stretching out at valve rod (7) on the position of cylinder barrel (5) has a groove (701); Fix a support plate (16) in a side of cylinder barrel (5), on support plate (16), fix a coil (13), one magnetic core (12) is arranged at coil (13) center; Have a flange (1101) in magnetic core (12) upper end, and between the last plane of this flange (1101) and coil (13), a spring (11) is housed; One jackscrew (10) is arranged on flange (1101), and this jackscrew (10) is fixed on the lever (8), and lever (8) is hinged on by positioning shaft (9) on the support plate (501) that stretches out on the cylinder barrel (5), and the other end has an extension spring (15) to be connected on the support plate (16)." O " shape circle (3) and sealing gasket (2) are housed on the piston (4).Lever (8) is one to be The band steel part of shape.On cylinder barrel (5) and coil (13), also be covered with a housing (K), and a socket (17) that inserts controller Z output wire and plug be housed in a side of housing (K).

The utility model compared with prior art has the following advantages and effect:

1, because the utility model has only manual pull-up pull-button 702, valve just enters user mode, in case and gas leakage when reaching finite concentration alarm give the alarm and provide electric current that valve cuts out to coil, stop combustion gas being provided thereby having guaranteed the safety of using to the combustion gas tool, and structure itself is very reliable, can not break down.

2, valve of the present utility model is different from solenoid valve, and solenoid valve is to control first guide valve with electromagnet core, utilizes medium self opened by pressure to close, and electromagnetic shut-off valve is to affect a series of mechanical structures with magnetic force, valve utilizes the spring force quick closedown, and is accurately sensitive, but can not open automatically.

This cut-off valve technical characterstic:

1. MEDIA FLOW is to opposite with general stop valve.

2. upper bracket is that cylinder barrel structure, piston also are flaps.

3. electromagnet is done mechanical kinetic energy usefulness, can not the guide use.

4. the utility model compact, highly sensitive, low, the structure of power consumption is simple and clear, make easily and install.

Fig. 1 is a domestic gas cut-off valve structure diagram of the present utility model

Fig. 2 is that domestic gas Emergeny Cutoff Valves of the present utility model and alarm buzzer connect schematic representation.

Be described further below in conjunction with drawings and Examples:

See also Fig. 1, domestic gas electromagnetic shut-off valve of the present utility model mainly is made up of valve body 1, piston 4, cylinder barrel 5, magnetic core 12 and coil 13, piston 4 wherein is housed in cylinder barrel 5, " 0 " shape circle 3 and sealing gasket 2 are housed on the piston 4, be with spring 6 on the valve rod 7 on piston 4, and on it stretches out the position of cylinder barrel 5, a groove 701 is arranged, a pull-button 702 is housed at its top.

Fix a support plate 16 in a side of cylinder barrel 5 outsides, fix a coil 13 on support plate 16, there is a magnetic core 12 at coil 13 centers, and magnetic core 12 upper ends have a flange 1101, and a spring 11 is being housed between the plane on this flange 1101 and the coil 13.One jackscrew 10 is arranged on flange 1101, and this jackscrew 10 is fixed on one and is

On the lever 8 of shape, lever 8 is hinged on the support plate 501 that cylinder barrel 5 stretches out by positioning shaft 9, and the other end of lever 8 has an extension spring 15 to be connected on the support plate 16.

See also Fig. 2, domestic gas electromagnetic shut-off valve of the present utility model is subjected to the control of alarm Z, lead-in wire 14 on the coil 13 is to join by the wire and plug on a socket 17 and the alarm Z, in this alarm Z gas sensitive element sensor, relay, circuit board, transformer, loudspeaker are housed, alarm indicator lamp, switch, power line etc. are housed on the shell of alarm Z, because of the structure of this alarm Z is not invention main points of the present utility model, so will not describe in detail.

During use, manually mention pull-button 702, make piston 4 up lift off a seat 101, valve open, combustion gas flows to kitchen range from outlet, this moment spring 11 with magnetic core 12 jack-up and hold up lever 8, make an end of lever 8 insert 701 li of the grooves of valve rod 7, pin valve rod 7 it is not fallen, keep valve to be not related to valve in user mode.When if leakage takes place and reaches finite concentration in combustion gas in the use, gas sensitive element sensor in the alarm Z converts leakage signal to electrical signal and amplifies the driving relay and makes loudspeaker send chimes of doom, tutorial light sends alarm signal, and provide electric current to coil 13, this moment, coil 13 generation magnetic fields affected magnetic core 12 downward, extension spring 15 moves down lever 8, the other end of lever 8 breaks away from the groove 701 on the valve rod 7, spring 6 just pushing piston 4 down drops on throttle down on the valve seat 101, the sealing gasket 2 of piston 4 heads plays seal action, and combustion gas is no longer mobile.Only behind all clear, manually mention pull-button 702 and just can make valve open and light burner again, therefore guaranteed the safe handling of burner.When indoor oxygen is not enough, also can cut off gas source in addition, the personnel of preventing poison.

Also can see from Fig. 2 a housing K also is housed on cylinder barrel 5 and coil 13, playing safety and protective action, the socket 17 that inserts controller Z output wire and plug is housed in the side of housing K.

Claims

1, a kind of domestic gas electromagnetic shut-off valve, mainly form by valve body, valve rod, magnetic core, coil, it is characterized in that: a cylinder barrel (5) is housed on the top of valve body (1), piston (4) is housed in cylinder barrel (5), on the valve rod (7) on piston (4) spring (6) is set, and stretches out at valve rod (7) on the position of cylinder barrel (5) groove (701) is arranged; One side is fixed a support plate (16) in cylinder barrel (5) outside, fixes a coil (13) on support plate (16), at coil (13) center one magnetic core (12) is arranged; Have a flange (1101) in magnetic core (12) upper end, and between the last plane of this flange (1101) and coil (13), a spring (11) is housed; One jackscrew (10) is arranged on flange (1101), this jackscrew (10) is fixed on the lever (8), and lever (8) is hinged on by positioning shaft (9) on the support plate (501) that stretches out on the cylinder barrel (5), and lever (8) the other end has an extension spring (15) to be connected on the support plate (16).

2, domestic gas electromagnetic shut-off valve according to claim 1 is characterized in that: " O " shape circle (3) and sealing gasket (2) are housed on the piston (4).

3, domestic gas electromagnetic shut-off valve according to claim 1 is characterized in that: lever (8) is one to be

The band steel part of shape.

4, domestic gas electromagnetic shut-off valve according to claim 1 is characterized in that: also be covered with a housing (K) on cylinder barrel (5) and coil (13), and in a side of housing (K) socket (17) that inserts controller Z output wire and plug be housed.