CN2296441Y

CN2296441Y - Gas safety valve

Info

Publication number: CN2296441Y
Application number: CN 97205898
Authority: CN
Inventors: 赵建顺
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-01-24
Filing date: 1997-01-24
Publication date: 1998-11-04
Anticipated expiration: 2007-01-24

Abstract

The utility model provides a gas safety valve. The gas safety valve mainly comprises a through type diaphragm valve which is provided with a gas inlet, a gas outlet, an elastic diaphragm, a transmission rod, a handle, a handle rod and an outer shell, and a spiral spring, a gear and a matched gear set, which are arranged on the handle rod, a ratchet wheel, and a draw rod, a ratchet, a spring and an electromagnet, which are used for locking the ratchet wheel. The gas safety valve is combined with the existing gas sensitive alarm when used, and can quickly shut off a gas path when gas leakage is generated. The utility model has the advantages of simple structure, easy installation and use, low electric power consumption, being very easy to combine the existing gas pipelines.

Description

Gas relief valve

The utility model relates to a kind of gaspipe line safety valve, and the security solenoid valve that particularly a kind of and traditional through-type membrance valve combines belongs to gas piping valve technology field.

At present, it is more urgent to this requirement that the safety of coal gas way has become one of important topic of urban safety, particularly user, on the market some safety shutoff valves arranged now, but its structure is big, unreasonable, inconvenience is installed and used, and power consumption is big, fault is closed the back and is difficult for opening, particularly adopt big capacity contact-type solenoid valve, when action, easily produce spark, also easily cause accident once more.

The purpose of this utility model is exactly that design provides a kind of and can combine with the through-type membrance valve that tradition is used, and solenoid valve is directly contact not, the gas relief valve that power consumption is little.

The utility model is to realize like this, spiral spring and gear are housed on the valve handle of through-type membrance valve, and two groups of speed changes (change moment of torsion) gear driven, one ratchet through matching, the band that one solenoid valve and attraction thereof are housed in the valve casing can hook the connecting rod of the ratchet of ratchet tooth, and the upper end of connecting rod hangs over the valve casing upper end through little spring.During use, seal in the shutoff electronic switch that manual stopcock links to each other with circuit with existing coal gas air-sensitive alarm in the circuit of solenoid valve.

The utility model has the advantages that: simple in structure, volume is little, in conjunction with existing valve, be convenient to install and use, power consumption is little, electromagnet does not produce spark, manual-lock easily with the pull bar contact-impact.

Accompanying drawing 1, the utility model master looks (office is cutd open) schematic representation;

Accompanying drawing 2, the utility model left side are looked (office is cutd open) schematic representation;

Accompanying drawing 3, the utility model A-A schematic representation.

Describe concrete structure of the present utility model and working procedure in detail below in conjunction with accompanying drawing.

The utility model comprises by advancing, air outlet 1,2, elastic film 3, pass bar 4 and handle 5, the straight-through shape membrance valve that handle bar 6 and shell 7 are formed is formed, wherein, a gear 9 and an end are housed on the handle bar 6 are fixed on spiral spring 8 on shell 7 inwalls, gear 9 is meshed with gear 10, in-line gears 11 another gears 12 of engagement through gear 10, gear 12 is connected to a coaxial ratchet 13,

gear

10,12 rotating shaft is fixing through the support 14 that is fixed on shell 7 inboards, solenoid valve 15 is housed in the shell 7, the pull bar 16 of ratchet 17 that the band that can attract can be hooked in the teeth of ratchet 13 is housed on it, and pull bar 16 hangs on shell 7 upper bases through little spring 18.

When using the utility model, in the circuit of solenoid valve 15, seal in the electronics stopcock that manual stopcock links to each other with alarm trigger circuit with coal gas air-sensitive alarm earlier, and the battery of packing into (using 1.5 volts of batteries of 1-3 joint to get final product according to the model of valve in the utility model).When needs turn on the gas-fire pipeline, rotate counterclockwise handle 5 and rotate an angle of 90 degrees, make the 6 corresponding rotations of handle bar, and make the flat mouth down of breach on it, pass bar 4 and depress the nature come-up at the elastic force and the liquid of elastic film 3, make gas circuit open-minded, simultaneously, in the rotation of handle bar 6, spiral spring 8 accumulation of energys, gear 9 drives ratchets 13 counterclockwise quick rotation through

gear

10,11,12, and when stopping through the attraction of 15 pairs of pull bars 16 of solenoid valve by ratchet 17 lock in place, maintenance gas circuit open-minded.When gas leakage occurring, when airborne gas content reaches certain value near making, continuous coal gas air-sensitive alarm equipment alarm.And trigger and cut-off electronic switch, make the solenoid valve dead electricity, pull bar 16 is moving on the drive ratchet 17 under little spring 18 elastic reactions, ratchet 13 loses resistance, under the effect of spiral spring 8, handle bar 6 clockwise rotates, and makes flat mouthful of place's contact of non-breach and passes bar 4 and elastic film 3 throttle down gas circuits to pressing down.When normal the use, open the back as will close gas circuit, by the manual stopcock of connecting in moving electromagnetic valve 15 circuits, the same meeting is closed gas circuit rapidly.

Claims

A kind of gas relief valve, by bringing into, air outlet (1), (2), elastic film (3), pass bar (4) and handle (5), the through-type membrance valve of handle bar (6) and shell (7) is formed, it is characterized in that being equipped with on the handle bar (6) gear (9) and an end and be fixed on spiral spring (8) on shell (7) inwall, gear (9) is meshed with gear (10), in-line gears (11) through gear (10) mesh another gear (12), gear (12) is connected to a coaxial ratchet (13), gear (10), (12) rotating shaft is fixing through the support (14) that is fixed on shell (7) inboard, solenoid valve (15) is housed in the shell (7), the pull bar (16) of ratchet (17) that the band that can attract can be hooked in the teeth of ratchet (13) is housed on it, and pull bar (16) hangs on shell (7) upper base through little spring (18).