CN102155561A

CN102155561A - Improved kitchen fuel gas safety valve

Info

Publication number: CN102155561A
Application number: CN2011100914714A
Authority: CN
Inventors: 张珉
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-04-07
Filing date: 2011-04-07
Publication date: 2011-08-17

Abstract

The invention discloses an improved kitchen fuel gas safety valve, which is improved on the basis of the conventional kitchen fuel gas safety valve. The valve comprises an upper shell and a lower shell, and is characterized in that: the upper shell is provided with a gas inlet channel, a valve seat, a pressure regulation nozzle, a fuel gas pressure chamber, a timing gas shutoff valve seat and a gas outlet channel which are communicated with one another; an elastic force valve core which is used for controlling straight-forward gas shutoff through the gas pressure of the elastic force valve core is arranged in the gas inlet channel and is combined with the valve seat so as to achieve the effect of automatic gas shutoff during accidental pipe detachment gas leakage or under excessive low gas shutoff pressure; an automatic reset starting device is arranged at the central position of the outer end of the lower shell so as to achieve the effect of automatic reset after the starting of fuel gas; and a clockwork spring power operation type timer main switch device is arranged at the central position above the upper shell to achieve the effect of forcibly timing the automatic gas shutoff so as to prevent a major fire accident caused by the fuel gas forgotten to be shut by a user.

Description

A kind of modified model kitchen gas safe value

Technical field:

The present invention relates to safety valves for gas, relate in particular to and have a kind of modified model kitchen gas safe value that timing automatic is closed combustion gas and accidental gas leakage automatic self-closing gas.

Background technique:

At present, safety valves for gas has three kinds approximately, and first kind is electronic alarm class fuel safety protecting valve, and its shortcoming is: long-term use is out of order easily, performs practically no function, the difficult maintenance; Second kind is ball spool rolling close type safety valves for gas, and its shortcoming is: stable work in work, and it only can use in bottled high-pressure gas, and is if use in the low pressure pipeline combustion gas, malfunctioning easily; The third is reverse close type safety valves for gas, its shortcoming is: it only can use in setting house lead in air pressure, just in case after this valve stops the supple of gas or steam and cuts out automatically, if forgetting, the user closes oneself gas valve, when air feed house lead in pressure was greater than the setting use value once more, it just can be opened gas leakage automatically and constitute bigger danger.Other is, a kind of kitchen gas safe value (patent No.: ZL01265544.9) of the former first to file of the applicant, the mandate though it patents, but, exist following four kinds of technological deficiencies can't successful implementation: first defective be: utilize timer active force running shaft to press down as enable switch, the long effect that can't realize the breakdown combustion gas of stroke; Second defective is: timer active force running shaft, and directly drive spool and regularly close combustion gas, service behaviour is stable inadequately, and makes the anti-gas-leak O-ring seal wearing and tearing gas leakage in the active force running shaft constitute dangerous easily; The 3rd defective is: is equiped with a normally open gear in the timer arrangement, when the user does not have set time to cook diet and transports out of the kitchen,, can causes burning foods too if forget and close combustion gas, or the generation of the major accident of catching fire; The 4th defective is: accidental gas leakage self acting stop valve core only relies on self gravitation to close combustion gas, and it is close to be not closed completely, and is easy to generate little gas leakage and constitutes dangerous.

Summary of the invention:

In order to overcome the technological deficiency of above-mentioned kitchen gas safe value, a kind of modified model kitchen gas safe value provided by the invention, it is to improve to form on the basis of existing safety valves for gas; Stable work in work not only, the close gas leakage that can not occur being not closed completely constitutes dangerous problem, forgets and closes combustion gas nor the user can occur, and cause the problem of the major accident of catching fire.

According to above-mentioned purpose, a kind of modified model kitchen gas safe value provided by the invention, it comprises upper shell and lower shell body, is characterized in: upper shell has the gas-entered passageway, valve seat, pressure regulation mouth, gaseous-pressure chamber, the timing that are interconnected and closes air valve seat, outlet passageway; Between upper shell and lower shell body, install a pressure regulation elastomer diaphragm, and at pressure regulation elastomer diaphragm center position, installing pressure regulation drag hook; The pressure regulation push rod is installed on the pressure regulation push rod movable supporting point, one end inserts in the pressure regulation drag hook, the other end is connected with the work of adjusting pressuring valve core back or is tangent, to reach when suction pressure is used pressure safely greater than indoor setting, utilize lever power pushing away adjusting pressuring valve core and close pressure regulation mouth (5) automatically and reduce, regulate the effect of stablizing air pressure that draws into throughput; In gas-entered passageway, install one and forward close gas elastic force spool and match with valve seat, when reaching the ultralow or accidental gas leakage flow abnormity of the pressure of stopping the supple of gas or steam, utilize the effect that gas elastic force spool medi-spring pressure is forward closed combustion gas automatically of forward closing; The valve seat place is passed in the insertion of spool push rod in the adjusting pressuring valve core, and with forward close gas elastic force spool and head on and match, utilize combustion gas self pressure to reach, control spool push rod heads on and forward closes gas elastic force spool and leave regularly and close air valve seat, makes combustion gas normally enter the effect of using in the gaseous-pressure chamber; At the outer end of lower shell body center position, install an automatically reset starting drive, described starting drive comprises that a waist shape starts pull-button; Start one of pull-button center fixture waist shape, the hollow startup that is provided with outer spring screens and the screens of interior startup pull bar is helped pull a cart; Insert during hollow startup helps pull a cart starting pull bar, the interior startup pull bar screens during an end and hollow startup are helped pull a cart sticks mutually, and the other end is connected with pressure regulation drag hook lower end; Be inserted in an automatic-reset spring in the hollow startup outside of helping pull a cart, head on mutually,, can automatically resetly act on after reaching starting drive and activating to open combustion gas with the spring screens of outer spring screens, lower shell body bottom; Below the spring pressure-bearing pad of lower shell body and the pressure regulation elastomer diaphragm between the plastic pallet, being inserted in a preseting length matches with the pressure adjusting spring of setting pressure, to reach when only limiting to suction pressure greater than indoor setting safe handling pressure, utilize the interaction of combustion gas self pressure and pressure adjusting spring pressure, automatically regulate the effect of stablize air pressure and using of drawing and (withstand the hollow startup bottom of helping pull a cart if directly use the decline of pressure regulation drag hook, utilize Returnning spring to regulate air pressure, also can reach same purpose); At the top center position of upper shell (1), install a spiral spring power operation type timer main switch device, between timer main switch device and upper shell, install an anti-gas-leak elastomer diaphragm, to reach the effect of combustion gas that prevent toward external leakage; At anti-gas-leak elastomer diaphragm center position, installing a timing closes gas elastic force pull bar and lives with the timer active force rotary main shaft lower end that can slide up and down and be connected, when pressing down the combustion gas of rotation breakdown to reach timer active force running shaft, can not drive and regularly close the rotation of gas elastic force spool, and influence the effect of elastic force spool proper functioning; Timing pass gas elastic force pull bar is inserted the air valve seat place, timing pass pass in the upper shell, and install a timing and close gas elastic force spool and close air valve seat with timing and match, close the effect of combustion gas to reach timing automatic; In the elastic force pull bar, also install a roundel, and the installing raised points matches with depression below the power clockwork spring in roundel, to reach when the breakdown combustion gas is used, press down to regulate to back down and regularly close gas elastic force spool and leave regularly and close air valve seat, combustion gas is normally exported use to rise to reset and close the effect of combustion gas with timing automatic.

This modified model kitchen gas safe value, also comprise a kind of reverse pass gas formula modified model kitchen gas safe value, described reverse pass gas formula modified model kitchen gas safe value, it comprises lower shell body and upper shell, is characterized in: lower shell body has gas-entered passageway, gaseous-pressure chamber, pressure regulation mouth, valve seat, the outlet passageway that is interconnected; Between upper shell and lower shell body, install a pressure regulation elastomer diaphragm, and, install a valve core rod at pressure regulation elastomer diaphragm center position; Appropriate position in the middle of valve core rod, installing an adjusting pressuring valve core matches with the pressure regulation mouth, close the pressure regulation mouth to reach when suction pressure is used pressure safely greater than indoor setting, to utilize combustion gas self pressure that valve core rod is up moved, regulate automatically to draw and stablizes the effect that air pressure uses; In appropriate position, valve core rod lower end, fixedly being inserted in an iron plate matches with the hollow permanent magnet that is installed on the lower shell body center, when reaching at the pressure of stopping the supple of gas or steam ultralow or accidental gas leakage flow abnormity, utilize permanent magnet suction to drive to be installed in the elastomer diaphragm center position, reverse pass gas valve core self acting stop valve seat prevents the effect of combustion gas toward external leakage; Being inserted in a preseting length between upper shell and elastomer diaphragm matches with the pressure adjusting spring of setting pressure, to reach when only limiting to suction pressure greater than indoor setting safe handling pressure, utilize the interaction of combustion gas self pressure and pressure adjusting spring pressure, regulate automatically to draw and stablize the effect that air pressure uses; Be inserted in the enable switch device of an accidental gas leakage automatic gas-locking at the upper shell center position, described automatic gas-locking enable switch device comprises that one starts pull-button, starts pull bar; Insert upper shell the inner starting pull bar, and be connected with the valve core rod upper end is alive; One of installing is protruded tooth and is matched with inclined plane groove in the upper shell on starting pull bar, to reach when stopping using combustion gas, utilizes manpower to press down the effect of rotary closing combustion gas; For safer, outside above upper shell, also can be inserted in a pair of arc-shaped permanent magnet or rotary reset spring and start pull-button and match, automatic decline rotary reset locking valve when reaching accidental gas leakage, when preventing to come the atmospheric pressure superelevation once more, valve is opened gas leakage automatically and is purchased dangerous effect.

This modified model kitchen gas safe value if remove regularly closing function, also can be used as the plain edition safety valve and uses, and detailed description is not arranged, and is appreciated that; If automatic self-closing gas function and adjusting air pressure function also can be used as plain edition safe and timing valve and use when removing accidental gas leakage, detailed description is not arranged, be appreciated that.

The core technology of this modified model kitchen gas safe value is: (1), utilize combustion gas self pressure control, and when reaching the ultralow or accidental gas leakage flow abnormity of the pressure of stopping the supple of gas or steam, utilize elastic force spool medi-spring pressure automatically forward or reversely close combustion gas; (2), utilize the interaction of combustion gas self pressure and pressure adjusting spring pressure, regulate automatically to draw and stablize the air pressure use; (3), utilize spiral spring power operation type timer main switch device, enforceable automatic self-closing gas is guaranteed safety; (4), starting dress is an automatically reset enable switch device; (5), starting drive is the enable switch device of an automatic gas-locking.

Beneficial effect:

Modified model kitchen gas safe value provided by the invention has following beneficial effect fruit:

(1), because this modified model kitchen gas safe value, increase mandatory timing main switch device of installing, thus the user uses combustion gas to cook diet finish after, even forget and close combustion gas, it also can guarantee safety by automatic self-closing gas;

(2), owing to starting drive is installed in outside the gaseous-pressure district in addition, so fortune does not have the problem that sealing part abrasion gas leakage constitutes danger forever;

(3), owing to forward close the gas valve core place at accidental gas leakage, increase pressure spring of installing, so when accident was taken off pipe gas leakage, automatic-closing valve was tighter, drips gas and do not leak.

(4), since start cover cap inboard with the upper shell upper outer between also why go into a rotary reset spring and match, so when accidental gas leakage or pipeline company stop the supple of gas or steam, can the auto lock valve, prevent to come once more gas, the pressure superelevation is opened valve gas leakage automatically and is purchased bigger danger.

Description of drawings:

Below in conjunction with accompanying drawing a kind of modified model kitchen gas safe value provided by the invention is described in further detail;

Fig. 1 is the side-looking structural representation when the invention provides a kind of modified model kitchen gas safe value normal ventilation and using;

Fig. 2 the invention provides a kind of reverse pass gas formula modified model kitchen gas safe value gas leakage side-looking structural representation during reverse closing automatically;

Fig. 3 the invention provides a kind of modified model kitchen gas safe value, only has accidental gas leakage to close the plain edition safety valve side-looking structural representation of gas automatically;

Fig. 4 the invention provides a kind of modified model kitchen gas safe value, only has timing automatic to close the plain edition safety valve side-looking structural representation of airway dysfunction.

Among Fig. 1,1, upper shell; 2, lower shell body; 3, gas-entered passageway; 4, valve seat; 5, pressure regulation mouth; 6, gaseous-pressure chamber; 7, regularly close air valve seat; 8, outlet passageway; 9, pressure regulation elastomer diaphragm; 10, pressure regulation drag hook; 11, pressure regulation push rod; 12, pressure regulation push rod movable supporting point; 13, adjusting pressuring valve core; 14, forward close gas elastic force spool; 15, spool push rod; 16, starting drive; 17, waist shape starts pull-button; 18, outer spring screens; 19, interior startup pull bar screens; 20, hollow startup is helped pull a cart; 21, start pull bar; 22, the spring screens of lower shell body bottom; 23, Returnning spring; 24, spring pressure-bearing pad; 25, plastic pallet; 26, pressure adjusting spring; 27, timer main switch device; 28, anti-gas-leak elastomer diaphragm; 29, regularly close gas elastic force pull bar; 30, regularly close gas elastic force spool; 31, active force running shaft; 32, hand switch knob; 33, roundel; 34, raised points; 35 power clockwork springs; 36, depression.

Among Fig. 2,1, lower shell body; 2, upper shell; 3, gas-entered passageway; 4, gaseous-pressure chamber; 5, pressure regulation mouth; 6, valve seat; 7, outlet passageway; 8, elastomer diaphragm; 9, valve core rod; 10, adjusting pressuring valve core; 11, iron plate; 12, hollow permanent magnet; 13, reverse pass gas valve core; 14, pressure adjusting spring; 15, enable switch device; 16, start pull-button; 17, start pull bar; 18, protrude tooth; 19, inclined plane groove; 20, rotary reset spring.

Embodiment:

(as shown in fig. 1), a kind of modified model kitchen gas safe value provided by the invention, it comprises upper shell (1) and lower shell body (2), is characterized in: upper shell (1) has the gas-entered passageway (3), valve seat (4), pressure regulation mouth (5), gaseous-pressure chamber (6), the timing that are interconnected and closes air valve seat (7), outlet passageway (8); Between upper shell (1) and lower shell body (2), install a pressure regulation elastomer diaphragm (9), and at pressure regulation elastomer diaphragm (9) center position, installing pressure regulation drag hook (10); Pressure regulation push rod (11) is installed on the pressure regulation push rod movable supporting point (12), one end inserts in the pressure regulation drag hook (10), the other end is connected with the work of adjusting pressuring valve core (13) back or is tangent, to reach when suction pressure is used pressure safely greater than indoor setting, utilize lever power pushing away adjusting pressuring valve core (13) and close pressure regulation mouth (5) automatically and reduce, regulate the effect of stablizing air pressure that draws into throughput; In gas-entered passageway (3), installing one forward closes gas elastic force spool (14) and matches with valve seat (4), when reaching the ultralow or accidental gas leakage flow abnormity of the pressure of stopping the supple of gas or steam, utilize the effect that gas elastic force spool (14) medi-spring pressure is forward closed combustion gas automatically of forward closing; Valve seat (4) is passed in the insertion of spool push rod (15) in the adjusting pressuring valve core (13) to be located, and with forward close gas elastic force spool (14) and head on and match, utilize combustion gas self pressure to reach, control spool push rod (15) heads on and forward closes gas elastic force spool (14) and leave and regularly close air valve seat (7), makes combustion gas normally enter the effect of using in the gaseous-pressure chamber; At the outer end center position of lower shell body (2), install an automatically reset starting drive (16), described starting drive (16) comprises that a waist shape starts pull-button (17); Start one of pull-button (17) center fixture waist shape, be provided with outer spring screens (18) and the hollow startup of interior startup pull bar screens (19) help pull a cart (20); Insert hollow startup and help pull a cart in (20) starting pull bar (21), the interior startup pull bar screens (19) that an end and hollow startup are helped pull a cart in (20) sticks mutually, and the other end is connected with pressure regulation drag hook (10) lower end; Be inserted in an automatic-reset spring (23) in hollow startup (20) outside of helping pull a cart, head on mutually,, can automatically resetly act on after reaching starting drive (16) and activating to open combustion gas with the spring screens (22) of outer spring screens (18), lower shell body bottom; Between the spring pressure-bearing pad (24) and pressure regulation elastomer diaphragm (9) below plastic pallet (25) of lower shell body (2), being inserted in a preseting length matches with the pressure adjusting spring (26) of setting pressure, to reach when only limiting to suction pressure greater than indoor setting safe handling pressure, utilize the interaction of combustion gas self pressure and pressure adjusting spring (26) pressure, automatically regulate the effect of stablize air pressure and using of drawing and (withstand the hollow startup bottom of helping pull a cart if directly use the decline of pressure regulation drag hook, utilize Returnning spring to regulate air pressure, also can reach same purpose); Top center position at upper shell (1), install a spiral spring power operation type timer main switch device (27), between timer main switch device (27) and upper shell (1), install an anti-gas-leak elastomer diaphragm (28), to reach the effect of combustion gas that prevent toward external leakage; At anti-gas-leak elastomer diaphragm (28) center position, installing a timing closes gas elastic force pull bar (29) and lives with timer active force rotary main shaft (31) lower end that can slide up and down and be connected, when pressing down the combustion gas of rotation breakdown to reach timer active force running shaft (31), can not drive and regularly close gas elastic force spool (30) rotation, and influence the effect of elastic force spool (30) proper functioning; Timing pass gas elastic force pull bar (29) is inserted the timing pass in the upper shell (1) close air valve seat (7) and locate, and install a timing and close gas elastic force spool (30) and close air valve seat (7) with timing and match, close the effect of combustion gas to reach timing automatic; In elastic force pull bar (29), also install a roundel (33), and installing raised points (34) matches with the depression (36) of power clockwork spring (35) below in roundel (33), to reach when the breakdown combustion gas is used, press down to regulate to back down and regularly close gas elastic force spool (30) and leave regularly and close air valve seat (7), combustion gas is normally exported use to rise to reset and close the effect of combustion gas with timing automatic.

(as shown in Figure 2), this modified model kitchen gas safe value, also comprise a kind of reverse pass gas formula modified model kitchen gas safe value, described reverse pass gas formula modified model kitchen gas safe value, it comprises lower shell body (1) and upper shell (2), and be characterized in: lower shell body (1) has gas-entered passageway (3), gaseous-pressure chamber (4), pressure regulation mouth (5), valve seat (6), the outlet passageway (7) that is interconnected; Between upper shell (1) and lower shell body (2), install an elastomer diaphragm (8), and, install a valve core rod (9) at elastomer diaphragm (8) center position; Appropriate position in the middle of valve core rod (9), installing an adjusting pressuring valve core (10) matches with pressure regulation mouth (5), to reach when suction pressure is used pressure safely greater than indoor setting, utilize combustion gas self pressure that valve core rod (9) is up moved and close pressure regulation mouth (5), regulate automatically to draw and stablize the effect that air pressure uses; In valve core rod (9) appropriate position, lower end, fixedly being inserted in an iron plate (11) matches with the hollow permanent magnet (12) that is installed on lower shell body (1) center, when reaching at the pressure of stopping the supple of gas or steam ultralow or accidental gas leakage flow abnormity, utilize permanent magnet suction to drive to be installed in elastomer diaphragm (8) center position, reverse pass gas valve core (13) self acting stop valve seat (6) prevents the effect of combustion gas toward external leakage; Being inserted in a preseting length between upper shell (2) and elastomer diaphragm (8) matches with the pressure adjusting spring (14) of setting pressure, to reach when only limiting to suction pressure greater than indoor setting safe handling pressure, utilize the interaction of combustion gas self pressure and pressure adjusting spring (14) pressure, regulate automatically to draw and stablize the effect that air pressure uses; Be inserted in the enable switch device (15) of an accidental gas leakage automatic gas-locking at upper shell (2) center position, described automatic gas-locking enable switch device (15) comprises that one starts pull-button (16), starts pull bar (17); Insert upper shell (2) the inner starting pull bar (17), and be connected with valve core rod (9) upper end is alive; Go up one of installing and protrude tooth (18) and match starting pull bar (17),, utilize manpower to press down the effect of rotary closing combustion gas to reach when stopping using combustion gas with inclined plane groove (19) in the upper shell (2); For safer, in outside, upper shell (2) top, also can be inserted in an a pair of arc-shaped permanent magnet or a rotary reset spring (20) matches with startup pull-button (16), automatic decline rotary reset locking valve when reaching accidental gas leakage, when preventing to come the atmospheric pressure superelevation once more, valve is opened gas leakage automatically and is purchased dangerous effect.

This modified model kitchen gas safe value if remove regularly closing function, also can be used as the plain edition kitchen gas safe value and uses, and (as shown in Figure 3), detailed description is not arranged, be appreciated that; If automatic self-closing gas function and adjusting air pressure function when removing accidental gas leakage also can be used as regularly kitchen gas safe value use of plain edition, (shown in 4 figure) do not have detailed description, are appreciated that.

Installation and application and working principle explanation:

(as shown in Figure 1), when needs are installed and used, earlier gas-entered passageway (3) one ends of this modified model kitchen gas safe value are connected fuel gas source, outlet passageway (8) one ends connect the flexible rubber hose (diagram of connection is not arranged, be appreciated that) in domestic gas cooking stove or the household water heater; When needs use combustion gas to cook diet, the drop-down automatically reset starting drive (16) of exerting oneself earlier, and make hollow startup help pull a cart (20), start pull bar (21), pressure regulation drag hook (10) drives pressure regulation push rod (11) and is pushing away adjusting pressuring valve core (13) the spool push rod (15) of ining succession and back down and forward close gas elastic force spool (14), combustion gas promptly can be introduced in the gaseous-pressure chamber (6), under the effect of combustion gas self pressure, described elastomer diaphragm (9) is just splashed bloated outward, drive pressure regulation push rod (11), adjusting pressuring valve core (13) is transported forever with spool push rod (15) and is backed down elastic force spool (14), combustion gas promptly can constantly enter in the gaseous-pressure chamber (6), at this moment, the hand switch knob (32) that manually turns clockwise again makes the raised points (34) in the roundel (33) leave depression (36) and press down to back down regularly and closes gas elastic force spool (30), and combustion gas promptly can normally be exported use.Burn run-down throughput because of catching fire unusual when flexible rubber hose accidental or flexible rubber hose, or pipeline company stops the supple of gas or steam pressure when setting working pressure, air pressure in the gaseous-pressure chamber (6) reduces, under the effect of forward closing gas elastic force spool (14) spring force, just can forward close combustion gas automatically, guarantee safety.Finish when the user cooks diet, but manpower hand switch knob (32), the raised points (34) that is rotated counterclockwise to the roundel (33) aligns the place with depression (36), the effect of regularly closing gas elastic force spool (30) spring force down automatically rising close combustion gas.If the user cooks diet and finishes and forget when closing combustion gas, this timer main switch device (27) also can postpone some times and automatically reset and close combustion gas, guarantees safety.

(as shown in Figure 2) when needs are installed and used, earlier gas-entered passageway (3) one ends of reverse pass gas formula modified model kitchen gas safe value are connected fuel gas source, outlet passageway (7) one ends connect the flexible rubber hose (diagram of connection is not arranged, be appreciated that) in domestic gas cooking stove or the household water heater; When needs use combustion gas to cook diet, to draw enable switch device (15) on exerting oneself earlier, and reverse pass gas valve core (13) is lifted off a seat (6), combustion gas promptly can normally be exported use.When suction pressure is used pressure safely greater than indoor setting, described elastomer diaphragm (8) just continues to splash outward bloated, compress the pressure adjusting spring (14) of preseting length and setting pressure and drive adjusting pressuring valve core (10) and close pressure regulation mouth (5) automatically, regulate drawing stable air pressure automatically, safe handling.Unusual when working as flexible rubber hose accidental or flexible rubber hose because of the run-down throughput of burning of catching fire, or pipeline company stops the supple of gas or steam pressure when setting working pressure, air pressure in the gaseous-pressure chamber (4) reduces, under permanent magnet suction drives, described reverse pass gas valve core (13) self acting stop valve seat (6) prevents that combustion gas is toward external leakage; Described automatic gas-locking enable switch device (15) also under the effect of rotary reset spring (20) power, the auto lock valve, when preventing to come the atmospheric pressure superelevation once more, valve is opened gas leakage automatically and is purchased dangerous.

Claims

1. modified model kitchen gas safe value, it comprises upper shell (1) and lower shell body (2), it is characterized in that: upper shell (1) has the gas-entered passageway (3), valve seat (4), pressure regulation mouth (5), gaseous-pressure chamber (6), the timing that are interconnected and closes air valve seat (7), outlet passageway (8); Between upper shell (1) and lower shell body (2), install a pressure regulation elastomer diaphragm (9), and at pressure regulation elastomer diaphragm (9) center position, installing pressure regulation drag hook (10); Pressure regulation push rod (11) is installed on the pressure regulation push rod movable supporting point (12), and an end inserts in the pressure regulation drag hook (10), and the other end is connected with the work of adjusting pressuring valve core (13) back or is tangent; In gas-entered passageway (3), install one and forward close gas elastic force spool (14) and match with valve seat (4); Spool push rod (15) in the adjusting pressuring valve core (13) inserted passes valve seat (4) and locate, and with forward close gas elastic force spool (14) and head on and match; At the outer end center position of lower shell body (2), install an automatically reset starting drive (16), described starting drive (16) comprises that a waist shape starts pull-button (17); Start one of pull-button (17) center fixture waist shape, be provided with outer spring screens (18) and the hollow startup of interior startup pull bar screens (19) help pull a cart (20); Insert hollow startup and help pull a cart in (20) starting pull bar (21), the interior startup pull bar screens (19) that an end and hollow startup are helped pull a cart in (20) sticks mutually, and the other end is connected with pressure regulation drag hook (10) lower end; Be inserted in an automatic-reset spring (23) in hollow startup (20) outside of helping pull a cart, head on mutually with the spring screens (22) of outer spring screens (18), lower shell body bottom; Between the spring pressure-bearing pad (24) and pressure regulation elastomer diaphragm (9) below plastic pallet (25) of lower shell body (2), be inserted in a preseting length and match with the pressure adjusting spring (26) of setting pressure; At the top center position of upper shell (1), install a spiral spring power operation type timer main switch device (27), between timer main switch device (27) and upper shell (1), install an anti-gas-leak elastomer diaphragm (28); At anti-gas-leak elastomer diaphragm (28) center position, install a timing and close gas elastic force pull bar (29), living with timer active force rotary main shaft (31) lower end that can slide up and down is connected; Timing pass gas elastic force pull bar (29) is inserted the timing pass in the upper shell (1) close air valve seat (7) and locate, and install a timing and close gas elastic force spool (30) and close air valve seat (7) with timing and match; In elastic force pull bar (29), also install a roundel (33), and installing raised points (34) matches with the depression (36) of power clockwork spring (35) below in roundel (33).

2. modified model kitchen gas safe value, also comprise a kind of reverse pass gas formula modified model kitchen gas safe value, it comprises lower shell body (1) and upper shell (2), and it is characterized in that: lower shell body (1) has gas-entered passageway (3), gaseous-pressure chamber (4), pressure regulation mouth (5), valve seat (6), the outlet passageway (7) that is interconnected; Between upper shell (1) and lower shell body (2), install an elastomer diaphragm (8), and, install a valve core rod (9) at elastomer diaphragm (8) center position; Appropriate position in the middle of valve core rod (9) is installed an adjusting pressuring valve core (10) and is matched with pressure regulation mouth (5); In valve core rod (9) appropriate position, lower end, fixedly be inserted in an iron plate (11) and match with the hollow permanent magnet (12) that is installed on lower shell body (1) center; Being inserted in a preseting length between upper shell (2) and elastomer diaphragm (8) matches with the pressure adjusting spring (14) of setting pressure; Be inserted in the enable switch device (15) of an accidental gas leakage automatic gas-locking at upper shell (2) center position, described automatic gas-locking enable switch device (15) comprises that one starts pull-button (16), starts pull bar (17); Insert upper shell (2) the inner starting pull bar (17), and be connected with valve core rod (9) upper end is alive; Go up one of installing and protrude tooth (18) and match starting pull bar (17) with inclined plane groove (19) in the upper shell (2); For safer,, be inserted in an a pair of arc-shaped permanent magnet or a rotary reset spring (20) and match with startup pull-button (16) in outside, upper shell (2) top.