CN2154965Y

CN2154965Y - Dual-purpose gas security valve

Info

Publication number: CN2154965Y
Application number: CN 93230735
Authority: CN
Inventors: 门光庆
Original assignee: SANTE HIGH-TECH INDUSTRIAL Co Ltd JINAN CITY
Current assignee: SANTE HIGH-TECH INDUSTRIAL Co Ltd JINAN CITY
Priority date: 1993-04-20
Filing date: 1993-04-20
Publication date: 1994-02-02
Anticipated expiration: 2003-04-20

Abstract

The utility model provides a dual-purpose gas security valve, which is suitable for a pipeline gas user and can be matched and connected with a gas alarm. The utility model adopts the bibcock principle, and the valve is closed by the torsion of a torsion spring; the utility model can be integrated with the function of an existing limit switch (gas horn), one object has dual purpose, and namely, the utility model has the function of the limit switch and a self-closing function. The utility model has the advantages of simple structure, novel design, good fireproof performance, and strong reliability. The utility model provides the safety control for the gas user's gas burner.

Description

Dual-purpose gas security valve

The utility model relates to a kind of fuel gas safety valve, promptly a kind of dual-purpose coal gas safety valve of installing and using at the piped gas user terminal.

The existing coal gas safety valve that connects with fuel gas alarm only has a kind of function, i.e. automatic closing function mostly.And because of safety valve in the ordinary course of things one, two year or the longer time be failure to actuate once, in the corrosion of coal gas and the adhewsive action of residuals, under the adverse circumstances of kitchen, as gas leak, drawback such as the appropriate to the occasion appearance of actuation of an alarm is stuck or be not closed completely, be difficult to guarantee to close reliably, and be to adopt rubber mostly as seal, do not have a fire protecting performance, as the kitchen catch fire, very easily fusing such as rubber diaphragm, plug, coal gas is gone out, cause bigger accident.

The purpose of the present utility model is to create a kind of coal gas user terminal switch (coal gas angle) of can working as at ordinary times often to use, and can close automatically again during warning, and fire line is good, and the life-span is long, guarantees the dual-purpose coal gas safety valve of reliable in action.

The fuel gas alarm that the utility model is achieved in that when gas leak and valve connects, after detecting, send sound, light warning, send an electric signal simultaneously and make the electromagnet on the safety valve inhale the groove that the moving armature hook breaks away from the torsion spring dish, the torsion spring dish rotates under the effect of torsion spring along clockwise direction, at this moment the pin of torsion spring dish promotes the dial sheet, thereby drive cock stem and turn-knob and together rotate 90 °, reach the closed position, and remain closed condition.After accident is removed, when continuing to use coal gas, with hand with turn-knob counterclockwise rotation to 90 ° (ON) position, at this moment the dial sheet will also rotate 90 ° to the torsion spring dish to inhour by pin, hook on the armature sticks in the groove of torsion spring dish automatically, and the torsion spring dish that hooks energy storage is waited for action when reporting to the police once more.At this moment state promptly as coal gas limit switch (coal gas angle) use at ordinary times, can turn on the gas-fire freely, or close coal gas, will repeat above automatic closing motion once more in case of reporting to the police.

Concrete structure of the present utility model is provided by following embodiment and accompanying drawing thereof:

Fig. 1 is the cutaway view of internal structure

Fig. 2 is the view that removes behind turn-knob, the loam cake

Fig. 3 is an outside drawing of the present utility model

Casting its end of valve body ［ 1 ］ that forms with reference to Fig. 1,2,3, one with copper alloy has gas thread, can be installed in the terminal of consumer gas piping, and its other end has a rubber hose coupling can connect gas appliance, and a tapering through hole is arranged in the middle of the valve body.The loam cake ［ 4 ］ of not steel board for kitchen use drawing is housed on valve body ［ 1 ］.Cock stem ［ 2 ］ grinds with the tapered hole pairing of valve body ［ 1 ］ with brass bar truck system, tapering part, to guarantee good air-tightness.Tapering at cock stem ［ 2 ］ partly has radial direction through hole ［ 3 ］, and the steel torsion spring dish ［ 8 ］ that trackslips with cock stem ［ 2 ］ is equipped with on top, and the edge of torsion spring dish ［ 8 ］ has a groove, and torsion spring ［ 9 ］ is equipped with in the bottom.On torsion spring dish ［ 8 ］, the dial sheet ［ 7 ］ that together rotates with cock stem ［ 2 ］ also is housed, the available 2 millimeters iron plate punching presses of dial sheet ［ 7 ］ are made.In the side of torsion spring dish ［ 8 ］ electromagnet ［ 10 ］ is housed, its iron core bends with electrician's soft iron, and the available cold rolling iron plate punching press of armature ［ 11 ］ bends, and turn-knob ［ 6 ］ is used the ABS injection moulding.

When using coal gas, to the ON position, at this moment dial sheet ［ 7 ］ is just stirred torsion spring dish ［ 8 ］ and is together rotated turn-knob ［ 6 ］ counterclockwise rotation, armature hook ［ 11 ］ is under the effect of little torsion spring ［ 12 ］ simultaneously, snap in the groove of torsion spring dish ［ 8 ］, realize on-hook, torsion spring dish ［ 8 ］ energy storage.At this moment state promptly is to replace duct end switch (coal gas angle) to use, and can open or close freely.As gas leak, alarm equipment alarm, at this moment electromagnet ［ 10 ］ is inhaled moving armature hook ［ 11 ］, so armature hook ［ 11 ］ is deviate from from the groove of torsion spring dish ［ 8 ］, torsion spring dish ［ 8 ］ is under the effect of torsion spring ［ 9 ］, rotate 90 ° along clockwise direction, the pin ［ 5 ］ that at this moment is fixed on the torsion spring dish ［ 8 ］ promotes dial sheet ［ 7 ］, also rotates 90 ° thereby drive cock stem ［ 2 ］, reach the closed position, and remain closed condition.When accident is removed back continuation use coal gas, repeat the action of above beginning, can recover the purposes at limit switch (coal gas angle).

This utility model has been selected on the gas piping extensive use for use, safe and reliable tapering cock on-off principle, simultaneously because the starting point of design is a limit switch (coal gas angle) with present use well combines, make its dual-use material, can work as limit switch and use, also will have automatic closing function.And, avoided stuck and inflexible phenomenon occurring, so guaranteed the reliability of switch motion because cock stem often rotates use.

Claims

1, an end of valve body [1] has gas thread, can be installed in the consumer gas piping terminal, its other end has rubber hose coupling, can connect kitchen range etc., tapering at cock stem [2] partly has a radial direction through hole [3], the torsion spring dish [8] that trackslips with cock stem [2] is housed on top, the edge of torsion spring dish [8] has a groove, torsion spring [9] is equipped with in the bottom, on torsion spring dish [8], the dial sheet [7] that together rotates with cock stem [2] also is housed, and electromagnet [10] and armature hook [11] is equipped with in the side in torsion spring dish [8].

2, device according to claim 1 is characterized in that being installed in the terminal of coal gas user pipe, the purposes of the limit switch of installing on having former pipeline (coal gas angle), also has the dual-purpose limit switch of automatic closing function when reporting to the police.

3, device according to claim 1, it is characterized in that adopting tapering cock on-off principle, utilize the effect of torsion spring ［ 9 ］, rotate cock stem ［ 2 ］ by torsion spring dish ［ 8 ］, electromagnet ［ 10 ］ armature hook ［ 11 ］, dial sheet ［ 7 ］ and reach the purpose of closing source of the gas automatically.