CN109826987A - A kind of automatic delay function part and the gas self-closing valve with timing closing function - Google Patents

Abstract

The invention discloses a kind of automatic delay function parts, shell including upper opening, plugging type moving member, the compressed spring for moving up actuator and the plugging type moving member is pushed to move up along the central axis of shell for being laid in shell and plugging type moving member being driven to move up, plugging type moving member, actuator and compressed spring is moved up to lay with shell in coaxial, mobile move up is pushed to realize that automatic time delay carries out closing motion under the inside and outside differential pressure effect of closure member closeouts in shell and by compressed spring, input cost is low and use process is safe, reliably.The invention also discloses a kind of gas self-closing valves with timing closing function simultaneously, self-closing valve body including inlet and gas outlet, the bottom of self-closing valve body is provided under shed, automatic delay function part is installed on the outside of under shed, make self-closing valve in the case where normal work by installing automatic delay function part in self-closing valve body base, there is self-timing closing function.

Description

A kind of automatic delay function part and the gas self-closing valve with timing closing function

Technical field

The invention belongs to pipeline gas valve technical fields, more particularly, to a kind of automatic delay function part and have timing The gas self-closing valve of closing function.

Background technique

In daily life, using when Household gas pipeline, there are some security hidden troubles.People need to close because often outgoing Main gas valve door is closed, or forgets to close valve because of carelessness after Household gas pipeline is supplied and interrupted suddenly, and works as pipeline After restoring gas supply, combustion gas will largely be released and be diffused in interior, both gas source be caused to waste, and also easily caused gas poisoning or caused The accidents such as fire, explosion.In actual use, the micro- leakage of superpressure, under-voltage, hose, hose occur in Household pipe gas de- Fall and gas leakage when automatically the gas self-closing valve closed in time it is most important, self-closing valve is on Household gas pipeline One of indispensable important component.

Nowadays used self-closing valve function is relatively single, be only capable of Household pipe gas occur superpressure, it is under-voltage, The micro- leakage of hose, hose fall off and gas leakage when be automatically closed, cannot periodically close, thus using inconvenient, Using effect is poor.Since self-closing valve is multipole permanent magnetism linkage permanent-magnet material magnetized according to design requirement, permanent memory is made Mechanism identifies that the automatic-closing valve when being more than secure setting is cut to the variation by gaseous-pressure parameter therebetween It dies source.Thus, gas self-closing valve is a purely mechanic valve, and process is automatically closed not to be influenced by any extraneous object. Thus, it, can only be by the electronic device with timing function or delay function to realize that the timing of self-closing valve is closed, the electronics device Part cannot be directly mounted in self-closing valve, and the electronic device and self-closing valve pass process do not have any direct relation, when usual The other separately installed again one electronic cutoff valve with timing function or delay function, increases investment in this way on gas pipeline Cost and actual installation cost, and inevitably make to increase at least two leakage points on gas pipeline, increase combustion gas The security risk of pipeline；Simultaneously as the electronic cutoff valve with timing function or delay function needs actually to make with charged Used time need to be replaced as frequently as power supply, otherwise not be available, and use is inconvenient；And the sensitivity and validity of electronic cutoff valve It is directly affected by the performance of multiple components, thus there is the problems such as movement is unreliable, cannot be automatically closed on time, use effect Fruit is poor；In addition, electronic cutoff valve itself is there are biggish security risk, due to electronic cutoff valve using when need to power on, Thus easily there is electric leakage, electric shock problem.

Summary of the invention

In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is that it is automatic to provide a kind of delay Closure member, simple structure and reasonable design and it is easy to use, using effect is good, in shell in plugging type moving member External differential effect is lower and matches mobile move up of promotion with compressed spring and realizes that automatic time delay carries out closing motion, investment at This low and use process is safe and reliable.

In order to solve the above technical problems, the technical solution adopted by the present invention is that: a kind of automatic delay function part, feature exist In: shell including upper opening, it is laid in the middle part of case inside and can be along the closure that casing center axis moves up and down Formula moving member is laid in shell and drive that the plugging type moving member moves up moves up actuator and push the closure The compressed spring that formula moving member is moved up along the central axis of shell, the plugging type moving member, it is described move up actuator and Compressed spring is laid with shell in coaxial.

A kind of above-mentioned automatic delay function part, it is characterized in that: the lumenal cross-section of the shell is round or regular polygon, The shape of the movable plate is identical as the lumenal cross-section shape of the shell.

Above-mentioned a kind of automatic delay function part, it is characterized in that: the plugging type moving member includes along casing center axis cloth If shifting axle and be coaxially fixedly set in the movable plate that can be moved up and down on the shifting axle and with the shifting axle, institute Movable plate and the perpendicular laying of the shifting axle are stated, the inner cavity of the shell is divided into upper cavity by the movable plate and is located at Lower chamber immediately below the upper cavity；

The compressed spring is located in the lower chamber and it is supported in plugging type moving member bottom and case inside Between bottom.

A kind of above-mentioned automatic delay function part, it is characterized in that: the shifting axle includes pushing column, the push rod is along shell Central axis is laid；Lower channel is provided in the promotion column, the lower channel is the channel of supplied gas circulation and its edge pushes The central axis of column is laid.

Above-mentioned a kind of automatic delay function part, it is characterized in that: the shifting axle further includes being laid in push right above column Push rod, the push rod is coaxially connected with promotion column and it lays along the central axis of shell；It is provided with upper channel in the push rod, The upper channel lay along casing center axis and its with the lower set of channels at the lower chamber is connected to hull outside Air passage.

A kind of above-mentioned automatic delay function part, it is characterized in that: be provided with multiple inlet channels in the lower channel, it is described on Channel and multiple inlet channels form the air intake duct for being connected to the lower chamber with hull outside；Filling in the lower channel There is filler, the inlet channel is the airspace in filler.

A kind of above-mentioned automatic delay function part, it is characterized in that: it is described move up actuator include to the upper opening of shell into What row blocked pushes armature and coaxial package on the shifting axle and is located at the promotion magnet pushed immediately below armature, described to push away Moving armature is located in shell and it is laid at the upper opening of shell；The promotion armature and promotion magnet are respectively positioned on the shifting Right above movable plate.

Above-mentioned a kind of automatic delay function part, it is characterized in that: the movable plate includes coaxial fixing sleeve loaded on promotion column Ring plate and annular closeouts that the annular chamber between shell and mobile plate is blocked, the annular closeouts cloth On the outside of ring plate；

The promotion magnet coaxial package is on promotion column.

A kind of above-mentioned automatic delay function part is installed it is characterized in that: being provided in the middle part of the promotion armature for the shifting axle Through-hole, the through-hole is the pilot hole being oriented to the shifting axle；

The shifting axle is coaxially installed in the pilot hole.

Above-mentioned a kind of automatic delay function part, it is characterized in that: the promotion armature includes middle part ring armature and is connected to The exterior annular armature of the middle part ring armature upper outside, the middle part ring armature be the straight armature of circular ring shape and its with The perpendicular laying of shifting axle；The diameter of the exterior annular armature is from top to bottom gradually reduced and its bottom and the middle part Ring armature, which is fastenedly connected, to be integrated, and exterior annular armature bottom and the middle part ring armature are laid in same plane On.

A kind of above-mentioned automatic delay function part, it is characterized in that: the push rod and promotion column are cylinder, the push rod Diameter is no more than the diameter for pushing column；

The promotion column bottom is extend out to below the movable plate, is coaxially arranged with limit on the outside of the promotion column bottom Ring, the stop collar are laid in immediately below the movable plate；The movable plate is located at stop collar and pushes between magnet.

Above-mentioned a kind of automatic delay function part, it is characterized in that: the annular closeouts is can boost from the bottom to top and make institute State the annular push plate that the intracorporal gas of cavity of resorption is expelled to the upper cavity.

Above-mentioned a kind of automatic delay function part, it is characterized in that: the annular closeouts are ring-shaped rubber film.

Above-mentioned a kind of automatic delay function part, it is characterized in that: the promotion column and movable plate composition are located in shell Piston.

Meanwhile the invention also discloses a kind of reasonable in design, easy to use and by installing in body base The gas self-closing valve with timing closing function of automatic delay function part progress automatic delay function, it is characterised in that: including The self-closing valve body of inlet and gas outlet, the bottom of the self-closing valve body are provided under shed, peace on the outside of the under shed Equipped with the automatic delay function part, the shell of the automatic delay function part is the closure blocked to the under shed Part；

Small epithelium is installed in the self-closing valve body, big epithelium is installed on the under shed, the small epithelium is located at Above big epithelium；The inner cavity of the self-closing valve body is divided into two cavitys up and down to the small epithelium and upper and lower two cavitys are distinguished For uuper valve chamber and middle valve chamber, the promotion armature of the automatic delay function part is located at below big epithelium and cavity between the two is Lower valve chamber；

Hand torsion bar lower end and cuticle in the uuper valve chamber are inserted by self-closing the opened upper mounting holes in valve body top Film is fixedly connected, and the valve opening opened or closed to air inlet and/or gas outlet is provided in the middle valve chamber and is closed Component；

Top magnetic suck component is provided in the uuper valve chamber, the top magnetic suck component includes being laid on small epithelium The first magnetic absorption member and be laid in second magnetic absorption member on the self-closing valve body top, second magnetic absorption member is located at described first Above magnetic absorption member；Middle part magnetic suck component is provided in the middle valve chamber, the middle part magnetic suck component includes being laid in great Pi Third magnetic absorption member on film and the 4th magnetic absorption member above the third magnetic absorption member, the 4th magnetic absorption member are installed on described On valve opening closing assembly.

The above-mentioned gas self-closing valve with timing closing function, it is characterized in that: the self-closing valve body is monoblock type valve body.

The above-mentioned gas self-closing valve with timing closing function, it is characterized in that: the size of the big epithelium is greater than small epithelium Size.

The above-mentioned gas self-closing valve with timing closing function, it is characterized in that: first magnetic absorption member is closed magnet, institute It states small epithelium and closed magnet and is fastenedly connected with hand torsion bar and is integrated；Second magnetic absorption member is closure armature；

The third magnetic absorption member is to break magnet, and the 4th magnetic absorption member is to break armature.

The above-mentioned gas self-closing valve with timing closing function, it is characterized in that: the closed magnet is supported on small epithelium, The magnet support of breaking is on big epithelium；The through-hole passed through for hand torsion bar, the closure rank are provided in the middle part of the closure armature Iron is installed in the upper mounting holes.

The above-mentioned gas self-closing valve with timing closing function, it is characterized in that: the small epithelium is located at immediately below big epithelium, The closed magnet is located at immediately below hand torsion bar, and the closure armature is located at right above closed magnet, the automatic delay function The promotion armature of part is located at immediately below big epithelium, and the closed magnet is located at the surface of small epithelium, and the magnet of breaking is located at The surface of big epithelium, the armature of breaking are located at the surface for breaking magnet.

The above-mentioned gas self-closing valve with timing closing function, it is characterized in that: the small epithelium passes through annular lower limit part It is fixed on the self-closing valve body, the annular lower limit part is located at below small epithelium；The surrounding outer edge of the small epithelium It is fastened and fixed between annular lower limit part and the self-closing valve body；The big epithelium by push armature be fixed on it is described from Between valve closing valve body and shell.

In addition, the invention also discloses a kind of reasonable in design, easy to use and by installing in body base Simultaneously the gas self-closing with timing closing function that reverse drive mechanism carries out automatic delay function is arranged in automatic delay function part Valve, the self-closing valve body including inlet and gas outlet, it is characterised in that: the bottom of the self-closing valve body, which is provided with down, opens Mouthful, the automatic delay function part is installed, the shell of the automatic delay function part is under described on the outside of the under shed Be open the closeouts blocked；

Valve opening closing assembly in the self-closing valve body passes through reverse drive mechanism and the automatic delay function The push rod of part is sequentially connected.

The above-mentioned gas self-closing valve with timing closing function, it is characterized in that: the self-closing valve body and shell composition seal Enclosed shell and the two, which are fastenedly connected, to be integrated.

The above-mentioned gas self-closing valve with timing closing function, it is characterized in that: the reverse drive mechanism is lever drive Structure, gear drive or jointed gear unit.

The above-mentioned gas self-closing valve with timing closing function, it is characterized in that: the shifting of the automatic delay function part Moving axis is that the valve for pushing the valve opening closing assembly to close air inlet or gas outlet after moving up closes drive Dynamic component, the valve opening closing assembly are to carry out passing through the reverse drive machine in opening procedure to air inlet or gas outlet The time opening component that structure drives the shifting axle to move down.

The above-mentioned gas self-closing valve with timing closing function, it is characterized in that: the self-closing valve body include by valve deck and It is provided with the valve body of the valve seat make-up composition of air inlet and gas outlet, corrugated rubber film is installed in the self-closing valve body, it is described The inner cavity of the self-closing valve body is divided into two cavitys up and down to corrugated rubber film and upper and lower two cavitys are respectively top valve chamber With lower part valve chamber, the intracavitary hand torsion bar lower end of the upper valve is inserted by institute's valve opening cap bore in the middle part of valve deck and is fixed with corrugated rubber film Connection, the valve opening closing assembly are the intracavitary set group opened or closed to air inlet of the lower valve Part.

Compared with the prior art, the present invention has the following advantages:

1, used automatic delay function part simple structure and reasonable design, design is beautiful and generous and installs and uses It is easy.

2, used automatic delay function part input cost is lower, the closeouts (i.e. plugging type moving member) in shell Inside and outside differential pressure effect is lower and is moved up by compressed spring with moving up actuator and match, and accordingly realizes automatic time delay Closing motion is carried out, while moving up actuator is magnetic suck component, progress is matched ingeniously with elastic force by draught head, magnetic suck Wonderful design, without any external force or driving equipment, input cost is low and use process is safe and reliable.

3, used automatic delay function part is easy to use, using effect is good and practical value is high, both can be with Self-closing valve is used cooperatively, and realizes that the automatic time delay of self-closing valve is closed；It can also be used in combination, realize with other kinds of valve The automatic time delay of each valve is closed, thus usage mode is flexible.Meanwhile the automatic delay function part can also be used as other closed The time-delay closing executive item of object is closed, realization is each to be controlled by the time-delay closing of control target.

4, the used gas self-closing valve with two epitheliums of size is easy to use and using effect is good, practical valence Value is high, has timing closing function, and manufacturing cost is low and practical, has conventional self-closing valve in superpressure, under-voltage, hose is micro- Leakage, hose fall off and the abnormal conditions such as gas leakage under automatic closing function so that Household gas pipeline occur superpressure, The micro- leakage of under-voltage, hose, hose fall off and whens abnormal conditions such as gas leakage can be automatically closed；Meanwhile having periodically (or prolong When) automatic closing function, realize that self-closing valve timing (or delay) is automatically closed using automatic delay function part, and the delay is certainly Dynamic closure member is that mechanical structure does not need continually to repair, maintain or replace driving without driving equipments such as any driving powers By means of equipment.

The gas self-closing valve is matched using two epitheliums of size, upper and lower two magnetic suck components with automatic delay function part Realize that easy open is closed with automatic time delay, structure is simple, input cost is low while easy to use, and use process Being not easily susceptible to other components or use environment influences, and working performance is safe and reliable, can effectively solve existing band timing function or prolongs It is needed existing for the electronic cutoff valve of Shi Gongneng with charged, using inconvenient, sensitivity and validity by multiple components Performance directly affects, it is unreliable to act, has that cannot to carry out being automatically closed situation, using effect on time poor and need to connect electricity Source, easily occur electric leakage with electric shock problem, there are biggish security risks the problems such as.

5, the used gas self-closing valve based on reverse drive mechanism includes the self-closing valve valve of inlet and gas outlet Body has timing closing function, and the bottom of the self-closing valve body is provided under shed, and is equipped with delay automatically on the outside of under shed Closure member, and by reverse drive mechanism realize the valve opening closing assembly in automatic delay function part and self-closing valve body into The reversed linkage of row, makes self-closing valve in the case where normal work, has self-timing closing function (also referred to as automatic delay function Function).Meanwhile it is small to the transformation of existing self-closing valve, only automatic delay function part need to be installed in body base, and will not It has any impact to the other performance of self-closing valve, while being able to achieve normal function of self closing, there is self-timing to close Function.

Below by drawings and examples, technical scheme of the present invention will be described in further detail.

Detailed description of the invention

Fig. 1 is the external structure schematic diagram of automatic delay function part in the embodiment of the present invention 1.

Fig. 2 is the schematic diagram of internal structure of automatic delay function part in the embodiment of the present invention 1.

Fig. 3 is the structural schematic diagram of automatic delay function part in the embodiment of the present invention 2.

Fig. 4 is the structural schematic diagram of gas self-closing valve in the embodiment of the present invention 3.

Fig. 5 is the structural schematic diagram of gas self-closing valve in the embodiment of the present invention 4.

Fig. 6 is the structural schematic diagram of reverse drive mechanism in the embodiment of the present invention 5.

Fig. 7 is the structural schematic diagram of reverse drive mechanism in the embodiment of the present invention 6.

Fig. 8 is the structural schematic diagram of reverse drive mechanism in the embodiment of the present invention 7.

Fig. 9 is the structural schematic diagram of reverse drive mechanism in the embodiment of the present invention 8.

Figure 10 is the structural schematic diagram of gas self-closing valve in the embodiment of the present invention 10.

Figure 11 is the structural schematic diagram of gas self-closing valve in the embodiment of the present invention 11.

Description of symbols:

1-valve deck；2-valve seats；3-air inlets；

4-permanent magnets；5-upper armatures；6-corrugated rubber films；

7-tablettings；8-nuts；9-spiracles；

11-mention button；12-green rings；13-red rings；

14-manual angle valves；15-lower armatures；16-Pagoda-shaped outlet interfaces；

17-gas outlets；18-limit armature；19-air inlet plugs；

21-reset springs；22-recessed portions；

25-pipe screw thread formula air inlet connections；26-boss；27-slanted channels；

28-gaskets；29-master control bars；31-limiting stands；

32-positioning blocked shots；33-guide rods；34-rocker arms；

35-shafts；36-connecting rods；37-catch bars；

38-guide holders；

100-hand torsion bars；101-shells；102-compressed springs；

103-push column；104-push armature；105-push magnet；

106-ring plates；107-annular closeouts；108-fillers；

109-stop collars；110-locking nuts；111-upper limit parts；

112-guide rings；201-small epitheliums；202-big epitheliums；

203-closed magnets；204-closure armature；205-break magnet；

206-break armature；207-lower limit parts；208-guide pads；

209-upper swing arms；210-guide holders；211-lower swing arms；

212-hinged seats；300-push rods；

301-mention button；302-monoblock type valve bodies；

303-swing arm open and close transmission mechanisms；401-upper push-rods；

402-reverse boxs；403-reversed push rods；404-fixed hinge axis；

405-sliding blocks；406-articulated shafts；407-gears；

408-lower gears；409-above push tooth；410-lower promotion teeth；

411-cylindrical push cover；412-tumbler gears；413-interior promotion teeth；

414-extrapolation movable tooths；415-straight telescopic rods；416-rocker arm assemblies；

417-guide grooves.

Specific embodiment

Embodiment 1

Automatic delay function part as shown in Figure 1 and Figure 2, shell 101 including upper opening are laid in 101 inside of shell Middle part and can along the plugging type moving member that 101 central axis of shell moves up and down, be laid in shell 101 and described in driving What plugging type moving member moved up moves up actuator and pushes the plugging type moving member upward along the central axis of shell 101 Mobile compressed spring 102, the plugging type moving member, actuator and the compressed spring 102 of moving up are with shell 101 in same Axis is laid.

Under the inner cavity of the shell 101 is divided into upper cavity and is located at the upper cavity just by the plugging type moving member The lower chamber of side, the plugging type moving member are to carry out blocking and capable of moving down on shell 101 carries out to the lower chamber top Dynamic moving member.The plugging type moving member is installed in shell 101, the surrounding outside of the plugging type moving member and shell 101 inner sidewall is close to.

The actuator that moves up is connect with the plugging type moving member, and the compressed spring 102 is supported in the plugging type Immediately below moving member.The compressed spring 102 be located in the lower chamber and its be supported in plugging type moving member bottom with Between 101 inside bottom of shell.

Before actual use, the plugging type moving member is pushed into downwards 101 inside bottom of shell, the delay at this time is certainly Dynamic closure member is in the open state, and compressed spring 102 is in compressive state.It is moved upward to the plugging type moving member 101 inside upper part of shell and it is slack when, the automatic delay function part is in close state, and it is automatic to complete the delay The time-delay closing process of closure member.Thus, it is pushed into 101 inside bottom of shell downwards to the envelope from by the plugging type moving member Stifled formula moving member is moved upward to 101 inside upper part of shell and slack time, for prolonging for the automatic delay function part When the shut-in time.The plugging type moving member is pushed into downwards 101 inside bottom of shell to the plugging type moving member to moving up It moves to 101 inside upper part of shell and slack process, is the automatic delay function part by open state to closed state Process；Automatic delay function part time as needed for open state to closed state is the automatic delay function part The time-delay closing time.

The plugging type moving member includes the shifting axle laid along 101 central axis of shell and is coaxially fixedly set in described On shifting axle and the movable plate that can be moved up and down with the shifting axle, the movable plate and the perpendicular cloth of the shifting axle If the inner cavity of the shell 101 is divided into upper cavity and the lower chamber immediately below the upper cavity by the movable plate. The shape of the movable plate is identical as the cross-sectional shape of 101 inner cavity of shell.

In actual use, the plugging type moving member can be piston.The shifting axle in the plugging type moving member For piston rod, the movable plate is piston plate.The plugging type moving member can be various types of pistons.

In the present embodiment, the shifting axle includes pushing column 103, the central axis cloth for pushing column 103 along shell 101 If being provided with lower channel in the promotion column 103, the lower channel is the channel of supplied gas circulation and its edge pushes column 103 Central axis is laid.The top and the bottom of the lower channel are open.

The compressed spring 102 is located in the lower chamber and it is supported in 101 inside of the movable plate bottom and shell Between bottom.Safe and reliable for simple installation, fixed and use process, 101 bottom of shell is provided with for a pressure supply The circular groove that contracting spring 102 is installed.

In the present embodiment, the movable plate is mounted on promotion column 103 and it is located at promotion 103 lower part of column.

In actual use, the plugging type moving member compressed spring 102 elastic force effect, the lower chamber and it is described on It is moved up under draught head effect and the driving effect for moving up actuator between cavity, and completes the automatic pass of the delay Closing member by open state to closed state process.When the automatic delay function part by open state to closed state when, lead to Cross the movement axially push be closed object closing, thus the shifting axle be close executive item.It is described to be closed object To axially push the mechanism that can be carried out closing by the movement, in this way, the plugging type moving member is in compressed spring 102 Energy under draught head effect and the driving effect for moving up actuator between elastic force effect, the lower chamber and the upper cavity The automatic delay function of object is closed described in completion, the automatic delay function part is as needed for open state to closed state Time, for the time-delay closing time for being closed object.

To be easy to operate, in the present embodiment, the shifting axle further includes being laid in the push rod 300 pushed right above column 103, The push rod 300 is coaxially connected with promotion column 103 and it lays along the central axis of shell 101；It is provided in the push rod 300 Upper channel, the upper channel and the lower channel along 101 central axis of shell lay and the two composition by the lower chamber with The air passage being connected on the outside of shell 101.At this point, the push rod 300 is to close executive item.To the automatic delay function part by opening When opening state to closed state, is pushed up by push rod 300 and be closed object closing.The push rod 300 with push column 103 it Between be threadedly coupled the modes such as mode, snapping, welding and be attached.

In actual use, the shifting axle can also be only with promotion column 103.At this point, by pushing column 103 to push up It is closed object closing.

The actuator that moves up is magnetic suck component, and the magnetic suck component includes being fixed at 101 upper opening of shell Upper magnetic absorption member and the lower magnetic absorption member that is mounted on the shifting axle, the upper magnetic absorption member and the lower magnetic absorption member are used in combination And it is mutually attracted.In actual use, it by the suction between the lower magnetic absorption member and the upper magnetic absorption member, realizes and drives the shifting The purpose that moving axis moves up.

In the present embodiment, the actuator that moves up includes the promotion armature 104 blocked to the upper opening of shell 101 With coaxial package on the shifting axle and positioned at the promotion magnet 105 pushed immediately below armature 104, the promotion armature 104 In shell 101 and at its upper opening for being laid in shell 101；The promotion armature 104 and promotion magnet 105 are respectively positioned on Right above the movable plate.The promotion armature 104, which is located at, to be pushed right above magnet 105.

Thus, the upper magnetic absorption member is to push armature 104, and the lower magnetic absorption member is to push magnet 105.In actual use, The upper magnetic absorption member and the lower magnetic absorption member can also be magnet, need to only be able to satisfy the upper magnetic after being moved to a fixed spacing Part and the lower magnetic absorption member attract each other.In addition, the upper magnetic absorption member may be armature, the lower magnetic absorption member described at this time is Magnet need to only be able to satisfy the upper magnetic absorption member and the lower magnetic absorption member after being moved to a fixed spacing and attract each other.Practical behaviour Make flexibly, to lay simple installation, and reliable working performance, it is sensitive.

The promotion magnet 105 is fixedly mounted on the shifting axle and it is synchronous in shell 101 with the shifting axle It moves up and down, the promotion magnet 105 and the perpendicular laying of the shifting axle.In the present embodiment, the promotion magnet 105 For annular magnet.In actual use, the shape for pushing magnet 105 may be circular ring shape, regular polygon etc..

In the present embodiment, 105 coaxial package of promotion magnet in push column 103 on, 104 coaxial sleeve of promotion armature Loaded in shell 101.

When actual processing, the lumenal cross-section of the shell 101 is round or regular polygon, the shape of the movable plate with The lumenal cross-section shape of the shell 101 is identical.In the present embodiment, the lumenal cross-section of the shell 101 is circle, thus Shell 101 is the cylindrical housings of upper opening, i.e., shell 101 is cylindrical bore.

The promotion armature 104 is iron plate and its shape is identical as the cross-sectional shape of 101 inner cavity of shell, the promotion rank Iron 104 is fixedly mounted on shell 101.

When actual processing, the promotion armature 104 includes middle part ring armature and is connected on the middle part ring armature Exterior annular armature on the outside of portion, the middle part ring armature are the straight armature of circular ring shape and itself and the perpendicular cloth of the shifting axle If；The diameter of the exterior annular armature is from top to bottom gradually reduced and its bottom and the middle part ring armature be fastenedly connected for One, exterior annular armature bottom and the middle part ring armature are laid on same plane.

In the present embodiment, the promotion armature 104 is bent by one piece of iron plate.

It is described that armature 104 is pushed to hold in the mouth including top armature, positioned at the lower part of the top armature upper and lower in the present embodiment Iron and the middle part armature being connected between the top armature and the lower armature.The top armature and the lower armature Be that ring armature and the two are laid with magnet 105 is pushed in parallel, the middle part armature for truncated cone and its diameter by It is gradually reduced under.Connect in the middle part of middle part armature top and the top armature, middle part armature lower part with it is described Connection in the middle part of lower armature.Middle part armature top and the top armature are laid on same plane, the middle part armature Lower part and the lower armature are laid on same plane.In this way, the promotion armature 104 can letter by the top armature Just, rapidly and reliably it is fixed on shell 101, and can be closely connect with shell 101, so that the top to shell 101 is opened Mouth is blocked.Meanwhile the middle part armature diameter is from top to bottom gradually reduced, and enters institute by the air passage convenient for gas It states in lower chamber, to realize to the purpose that draught head is adjusted between the lower chamber and the upper cavity, and realizes and push away Move the purpose that the plugging type moving member slowly moves up.In addition, the lower armature is located at immediately below the middle part armature, Be more convenient for being oriented to the shifting axle, it is ensured that the time-delay closing process of the automatic delay function part can it is easy, reliably into Row.

In the present embodiment, the top armature and the lower armature are circular ring shape iron plate and put down both for circular ring shape Straight armature.

Wherein, the exterior annular armature is the middle part armature, and the middle part ring armature is the lower armature.

Described to push the through-hole being provided in the middle part of armature 104 for shifting axle installation, the through-hole is to the shifting axle The pilot hole being oriented to；The shifting axle top is coaxially installed in the pilot hole.The pilot hole is along shell 101 Mandrel line is laid.The shifting axle is moved up and down in the pilot hole.

In the present embodiment, the pilot hole is located on the lower armature.

For the guide effect for further increasing the pilot hole, it is provided with guide sleeve in the middle part of the promotion armature 104, it is described Guide sleeve coaxial package is on the shifting axle.The cross-sectional shape phase of the cross-sectional shape of the guide sleeve and the shifting axle Together, the inner sidewall of the guide sleeve is close to the lateral wall of the shifting axle, and the guide sleeve and promotion armature 104 fasten It is connected as one.

In the present embodiment, the pilot hole is circular hole, and the guide sleeve is cylindrical guide sleeve.The shifting axle is cylinder Shape.The cylinder guide sleeve is the guide ring 112 being oriented to the shifting axle.

In actual use, the promotion column 103 or push rod 300 are coaxially installed in the pilot hole.

In the present embodiment, the upper channel and the lower channel are cylindrical channel.The diameter of the upper channel is less than The diameter of the lower channel, the upper channel are located at the surface of the lower channel.

In the present embodiment, the pilot hole for pushing column 103 to install is provided in the middle part of the promotion armature 104, it is described to push away Dynamic column 103 is coaxially installed in the pilot hole.

In actual use, the automatic delay function part by open state to closed state when, the promotion column 103 Top push the top of armature 104 by being gradually moved upward in the pilot hole.

In the present embodiment, the movable plate includes coaxial fixing sleeve loaded on the ring plate 106 pushed on column 103 and to shell The annular closeouts 107 that annular chamber between body 101 and mobile plate 106 is blocked, the annular closeouts 107 are laid in 106 outside of ring plate.

The annular closeouts 107 are to enter the closure that the intracorporal gas of the cavity of resorption is blocked to by the upper cavity Part.

In the present embodiment, the annular closeouts 107 be check valve sheet and its be truncated cone, the annular closeouts 107 diameter is from top to bottom gradually reduced.The ring plate 106 and annular closeouts 107 are with the shifting axle in coaxial It lays, the ring plate 106 and the perpendicular laying of the shifting axle.

The annular closeouts 107 are that can boost from the bottom to top and the intracorporal gas of the cavity of resorption is made to be expelled to the epicoele The annular push plate of body.In actual use, during being pushed down on the plugging type moving member by external force, in the lower chamber Gas push annular closeouts 107 boost from the bottom to top and the intracorporal gas of the cavity of resorption made to be expelled to the upper cavity.

In the present embodiment, the annular closeouts 107 are ring-shaped rubber film.The ring-shaped rubber film can be corrugated rubber Film.

In actual use, annular closeouts 107 can also use other types of turnover panel, and only needing can be in the lower chamber It can be boosted from the bottom to top under gas push effect, and after boosting from the bottom to top, annular closeouts 107 are in the open state, this When annular closeouts 107 and the inner sidewall of shell 101 between there are annular gap, the gas of the lower chamber passes through the annular Gap enters in the upper cavity.When the movable plate of the plugging type moving member is pushed into downwards 101 inside bottom of shell, The intracorporal gas of cavity of resorption is substantially completely discharged, and upwards thrust suffered in annular closeouts 107 disappears at this time, the ring Shape closeouts 107 downwardly turn over automatically, and annular closeouts 107 are in close state after downwardly turning over, at this time annular closeouts 107 It is in close contact between the inner sidewall of shell 101.Correspondingly, the automatic delay function part is by open state to closed state mistake Cheng Zhong, the annular closeouts 107 are in close state always, and between annular closeouts 107 and the inner sidewall of shell 101 It is in close contact.Thus, it can effectively ensure that the action process of the automatic delay function part is safe and reliable.

When actual processing, multiple inlet channels are provided in the lower channel, the upper channel and multiple air inlets are logical Road forms the air intake duct that will be connected on the outside of the lower chamber and shell 101.

In the present embodiment, filler 108 is filled in the lower channel, the inlet channel is logical in filler 108 Gas gap.

In the present embodiment, the filler 108 is powdery filling material.

The powdery filling material is powder, such as metal powder, non-metal powder.Wherein, metal powder include ferrous metal powder, Non-ferrous metal powder, synthesis metal powder etc..Ferrous metal includes iron, chromium, three kinds of manganese, non-ferrous metal include aluminium, magnesium, potassium, sodium, calcium, Strontium, barium, copper, lead, zinc, tin, cobalt, nickel, antimony, mercury, cadmium, bismuth, gold, silver, platinum, ruthenium, rhodium, palladium, osmium, iridium, beryllium, lithium, rubidium, caesium, titanium, Zirconium, vanadium, niobium, tantalum, tungsten, molybdenum, gallium, indium, thallium, germanium, rhenium, lanthanum, cerium, praseodymium, neodymium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium, Scandium, yttrium, thorium etc..Synthesis metal refers to by two or more chemical element, and wherein at least one is metallic element institute It forms substance with metallic character and is known as alloy." bianry alloy " is referred to as by the alloy that two kinds of elements form, by three kinds with The alloy of upper element composition is commonly referred to as " multicomponent alloy ".

To reduce cost, the metal powder can be using iron powder, aluminium powder, copper powder, zinc powder etc..

The non-metal powder includes carbon dust, quartz sand powder, rubber powder etc..

In the present embodiment, the filler 108 is quartz sand powder.In actual use, the filler 108 can also use Other types of powdery filling material (also referred to as powder), only need fill in the lower channel and formed it is internal with ventilating between The interstitital texture of gap.

In actual use, the filler 108 or the filling knot formed after being compacted by silk threads such as cotton yarn, cotton threads Structure.The silk threads such as cotton yarn, cotton thread are filled in the lower channel and after tightly compacted, filler 108 is just formed.

In addition, the filler 108 or elastic filler, being beaten by the interstitital texture of perfusion materia form, 3D Molding interstitital texture etc. is printed, only needs fill to band airspace in the lower channel and inside it.Wherein, elasticity is filled out Filling object is rubber, sponge etc..

In the present embodiment, the push rod 300 and promotion column 103 are cylinder.

The diameter of the push rod 300 is no more than the diameter for pushing column 103.In the present embodiment, the diameter of the push rod 300 is small In the diameter for pushing column 103, the lower part of the push rod 300 is coaxially installed on the lower channel inside upper part, 300 bottom of push rod Portion is supported on filler 108.

In the present embodiment, the diameter of the pilot hole is greater than the diameter of the shifting axle at its present position, the guiding There are annular gaps between hole and the shifting axle, are connected to the upper cavity with the cavity of 104 top of armature is pushed.

The push rod 300 is located above the lower armature.

In the present embodiment, 103 bottom of promotion column is extend out to below the movable plate, outside 103 bottom of promotion column Side is coaxially disposed restraining position ring block 109, and the stop collar 109 is laid in immediately below the movable plate；The movable plate is located at limit Between ring 109 and promotion magnet 105.

To be fixed easy, firm, locked between the promotion magnet 105 and promotion column 103 by locking nut 110 Fixed, 110 coaxial package of locking nut is on pushing column 103 and it is located above promotion magnet 105.

As shown in the above, in the present embodiment, the annular closeouts 107 are ring-shaped rubber film.The promotion magnet 105 be annular magnet.The piston for pushing column 103 and movable plate composition to be located in shell 101.

In actual use, specifically logical to the air inlet by adjusting the cross-sectional area sum of multiple inlet channels The size and number in road are adjusted, and are realized and are adjusted to by the air intake duct into the intracorporal gas admission velocity of the cavity of resorption It is whole, mutually cope with draught head between the lower chamber and the upper cavity and be adjusted, thus to the automatic delay function part by Open state is adjusted to time needed for closed state (the time-delay closing time of the i.e. described automatic delay function part), thus Practical operation is very easy, and working performance is safe and reliable, can be timely completed automatic time delay closing function automatically.

When carrying out time-delay closing using the automatic delay function part, external force is first passed through the plugging type moving member is downward Promotion is pushed into downwards 101 inside bottom of shell up to the movable plate of the plugging type moving member, makes to push magnet 105 and push away Moving armature 104 separates, and compressed spring 102 is in compressive state at this time, and the automatic delay function part enters time-delay closing State；During the plugging type moving member pushes down on, the intracorporal gas of cavity of resorption pushes up annular closeouts 107 It rises, is connected to the lower chamber with upper cavity, and the intracorporal gas of the cavity of resorption rapidly enters in the upper cavity, at this time institute The air pressure of lower chamber is stated lower than the intracorporal air pressure of the epicoele, and the air pressure of the lower chamber is lower than the gas in 101 outside of shell Pressure (the specifically air pressure of 104 top of promotion armature), the upper cavity.

After the automatic delay function part enters time-delay closing state, gas on the outside of the lower chamber (including push rank The gas in 101 outside of shell of the top of iron 104) cavity of resorption progressed by the air passage (the specifically described air intake duct) In vivo, it is gradually increased the air pressure of the lower chamber, accordingly makes the pressure difference between the upper cavity and the lower chamber (i.e. described Draught head) it is gradually reduced, until the pressure difference between the upper cavity and the lower chamber is gradually reduced to compressed spring 102 and can push away When moving the plugging type moving member and moving up, compressed spring 102 pushes the envelope by pushing up the shifting axle bottom Stifled formula moving member moves up, until pushing magnet 105 and armature 104 being pushed to be attracted, completes the automatic delay function part Time-delay closing process.

Wherein, the plugging type moving member is pushed into downwards after 101 inside bottom of shell to promotion magnet 105 and pushes rank Iron 104 is attracted the required time, is the time-delay closing time of the automatic delay function part.The plugging type moving member is described The elastic force effect and the drive for moving up actuator of draught head effect, compressed spring 102 between lower chamber and the upper cavity Movement is moved up under these three comprehensive functions, and completes the automatic delay function part by open state to closed state Process.

The incipient stage that the plugging type moving member moves up, the plugging type moving member is in the upper cavity and institute It states and is slowly moved up under pressure difference (i.e. draught head) effect between lower chamber；Pressure is moved upward to the plugging type moving member When contracting spring 102 can push the plugging type moving member to move up, the plugging type moving member is moved up, while pushing magnetic Iron 105 and push the magnetic attracting force effect of armature 104 is lower to be mutually attracted, and drive the plugging type moving member simultaneously and rapidly to The time-delay closing process of the automatic delay function part is completed in upper movement.The time-delay closing of the automatic delay function part is main The pressure difference (i.e. draught head) for being the plugging type moving member between the upper cavity and lower chamber effect is lower slowly upward The mobile time pushes magnet 105 and pushes and hold in the mouth once compressed spring 102 can push the plugging type moving member to move up Iron 104 just can quick pick-up, entire closing process is reliable.Therefore, the time-delay closing process of the automatic delay function part is easy And action process is safe and reliable, without other any driving devices, such as power supply, reliable in action can be timely completed automatic It closes, using effect is good.

Embodiment 2

As shown in figure 3, in the present embodiment, unlike the first embodiment: being provided in the middle part of the promotion armature 104 for push rod The pilot hole of 300 installations；The push rod 300 is coaxially installed in the pilot hole.

The guide sleeve is the guide part being oriented to push rod 300.The top of the push rod 300 is located at the pilot hole It is interior or be located at and push the top of armature 104.

To be fixed easy, firm, it is locked between the movable plate and promotion column 103 by locking nut 110, 110 coaxial package of locking nut is on pushing column 103 and it is located above the movable plate；

The movable plate is fastened and fixed between locking nut 110 and stop collar 109.

In the present embodiment, the promotion magnet 105 is located at 110 top of locking nut；

It is described to push the upper limit part 111 being provided on column 103 to pushing magnet 105 to be limited, the upper limit part 111 are located at 105 top of promotion magnet.

In the present embodiment, rest part structure, connection relationship and the working principle of the automatic delay function part with reality It is identical to apply example 1.

Embodiment 3

A kind of gas self-closing valve with timing closing function as shown in Figure 4, including inlet 3 and gas outlet 17 Self-closing valve body, the bottom of the self-closing valve body are provided under shed, and the automatic pass of the delay is equipped on the outside of the under shed Closing member, the shell 101 of the automatic delay function part are the closeouts blocked to the under shed；

Small epithelium 201 is installed in the self-closing valve body, big epithelium 202, the cuticle are installed on the under shed Film 201 is located at big 202 top of epithelium；The small epithelium 201 by the inner cavity of the self-closing valve body be divided into up and down two cavitys and Upper and lower two cavitys are respectively uuper valve chamber and middle valve chamber, and the promotion armature 104 of the automatic delay function part is located at big epithelium 202 Lower section and cavity between the two are lower valve chamber；

By self-closing the opened upper mounting holes in valve body top be inserted into 100 lower end of hand torsion bar in the uuper valve chamber with it is small Epithelium 201 is fixedly connected, and the valve opened or closed to air inlet 3 and/or gas outlet 17 is provided in the middle valve chamber Open and close component；

Top magnetic suck component is provided in the uuper valve chamber, the top magnetic suck component includes being laid in small epithelium The first magnetic absorption member on 201 and the second magnetic absorption member for being laid in the self-closing valve body top, second magnetic absorption member are located at institute It states above the first magnetic absorption member；Middle part magnetic suck component is provided in the middle valve chamber, the middle part magnetic suck component includes laying In the third magnetic absorption member on big epithelium 202 and the 4th magnetic absorption member above the third magnetic absorption member, the 4th magnetic absorption member It is installed on the valve opening closing assembly.

The small epithelium 201 and big epithelium 202 are rubber membrane (also referred to as epithelium or rubber membrane).Also, the cuticle Film 201 and big epithelium 202 can be all made of corrugated rubber film.The small epithelium 201 is identical with the thickness of big epithelium 202.Also, The size of the big epithelium 202 is greater than the size of small epithelium 201.The size of the big epithelium 202 is greater than the size of small epithelium 201 Refer to that the surface area of the big epithelium 202 is greater than the surface area of small epithelium 201.By adjusting small epithelium 201 and big epithelium 202 Size, just the thrust after 202 stress of small epithelium 201 and big epithelium can be adjusted accordingly, adjustment is easy, and workability It can be safe and reliable.

In the present embodiment, the small epithelium 201 and big epithelium 202 are circle.

In the present embodiment, the size that the size of the big epithelium 202 is greater than small epithelium 201 refers to the straight of big epithelium 202 Diameter is greater than the diameter of small epithelium 201.

In actual use, the top magnetic suck component is used cooperatively with small epithelium 201, the middle part magnetic suck component with Big epithelium 202 is used cooperatively.

First magnetic absorption member described in the top magnetic suck component is matched with second magnetic absorption member, and is moved to one After fixed spacing, first magnetic absorption member and second magnetic absorption member attract each other until being attracted.In the middle part magnetic suck component The third magnetic absorption member is matched with the 4th magnetic absorption member, and after being moved to a fixed spacing, the third magnetic absorption member and institute The 4th magnetic absorption member is stated to attract each other until being attracted.

In the present embodiment, first magnetic absorption member is closed magnet 203, and second magnetic absorption member is closure armature 204.Cause And first magnetic absorption member is magnet, second magnetic absorption member is iron plate.In actual use, first magnetic absorption member and described Second magnetic absorption member can also be magnet, need to only be able to satisfy first magnetic absorption member and second magnetic after being moved to a fixed spacing Part is inhaled to attract each other.In addition, first magnetic absorption member may be armature, second magnetic absorption member is magnet at this time, only First magnetic absorption member and second magnetic absorption member after being moved to a fixed spacing need to be able to satisfy to attract each other.Practical operation spirit It is living, simple installation, and reliable working performance are laid, it is sensitive.

In the present embodiment, the third magnetic absorption member is to break magnet 205, and the 4th magnetic absorption member is to break armature 206.Cause And the third magnetic absorption member is magnet, the 4th magnetic absorption member is iron plate.In actual use, the third magnetic absorption member and described 4th magnetic absorption member can also be magnet, need to only be able to satisfy the third magnetic absorption member and the 4th magnetic after being moved to a fixed spacing Part is inhaled to attract each other.In addition, the third magnetic absorption member may be armature (i.e. iron plate), the 4th magnetic absorption member is at this time Magnet need to only be able to satisfy the third magnetic absorption member and the 4th magnetic absorption member after being moved to a fixed spacing and attract each other.It is real Border flexible operation lays simple installation, and reliable working performance, sensitive.

When actual installation, the small epithelium 201 and closed magnet 203 are fastenedly connected with hand torsion bar 100 and are integrated.

To further ensure that using effect, while to make simple installation, the closed magnet 203 is supported in small epithelium 201 On, the magnet 205 of breaking is supported on big epithelium 202.

In the present embodiment, the through-hole passed through for hand torsion bar 100, the closure armature are provided in the middle part of the closure armature 204 204 are installed in the upper mounting holes.

In the present embodiment, the small epithelium 201 is located at immediately below big epithelium 202, and the closed magnet 203 is located at hand torsion bar Immediately below 100, the closure armature 204 is located at right above closed magnet 203, the promotion armature of the automatic delay function part 104 are located at immediately below big epithelium 202, and the closed magnet 203 is located at the surface of small epithelium 201, described to break magnet 205 In the surface of big epithelium 202, the armature 206 of breaking is located at the surface for breaking magnet 205.It in actual use, can basis It is specific to need, to small epithelium 201, big epithelium 202, closed magnet 203, magnet 205 is broken, armature 204 is closed and breaks armature 206 installation position adjusts accordingly.

When actual installation, 100 lower end of hand torsion bar is fixedly connected with small epithelium 201, and the hand torsion bar 100 is located at cuticle The surface of film 201.The hand torsion bar 100 passes through in the middle part of closure armature 204.

As shown in the above, the surface of the small epithelium 201 is provided with closed magnet 203, the closed magnet 203 Immediately below hand torsion bar 100 and it is supported on small epithelium 201, and closure armature 204, institute are equipped in the upper mounting holes It states and is provided with the through-hole passed through for hand torsion bar 100 in the middle part of closure armature 204；The small epithelium 201 and closed magnet 203 are turned round with hand Bar 100, which is fastenedly connected, to be integrated；It is provided on the surface of the big epithelium 202 and breaks magnet 205, it is described to break magnet 205 It is supported on big epithelium 202；The surface for breaking magnet 205, which is provided with, breaks armature 206, described to break the peace of armature 206 Loaded on the valve opening closing assembly.In actual use, the closed magnet 203, closure armature 204 and small epithelium 201 Laid with hand torsion bar 100 in coaxial.The closure armature 204 is fixedly installed on the self-closing valve body.

In the present embodiment, the gas self-closing valve is that the described of the automatic delay function part is closed object.

In the present embodiment, the automatic delay function part is installed on the under shed, automatic delay function part position Below the self-closing valve body.The valve opening closing assembly is to carry out in opening procedure to air inlet 3 or gas outlet 17 The time opening component for driving the shifting axle to move down by the reverse drive mechanism.The air inlet 3 and gas outlet 17 are connected to the middle valve chamber.

In the present embodiment, the shell 101 is laid with the self-closing valve body in coaxial.The shell 101 is located at described Immediately below the inner cavity of self-closing valve body.

The shell 101 is located at the underface of the under shed, and shell 101 is located at the underface of big epithelium 202.

The self-closing valve body middle inside is provided with the annular groove fixed for small epithelium 201, and the big epithelium 202 Edge be fixed on the self-closing valve body by lower annular stop part.

In the present embodiment, the small epithelium 201 passes through annular lower limit part 207 and is fixed on the self-closing valve body, institute It states annular lower limit part 207 and is located at small 201 lower section of epithelium；The surrounding outer edge of the small epithelium 201 is fastened and fixed under annular Between locating part 207 and the self-closing valve body；

The big epithelium 202 is by pushing armature 104 to be fixed between the self-closing valve body and shell 101.

In the present embodiment, the self-closing valve body is the monoblock type valve body 302 being processed as one.The thus self-closing valve valve Body structure is simple, processing and fabricating is easy, and the lower valve body of the self-closing valve body and valve deck processing and fabricating are integrated.

In actual use, the self-closing valve body may be by lower valve body and spiral-lock in the lower valve body institute's valve opening mouth Valve deck assembly type valve body.The small epithelium 201 is mounted between the lower valve body and the valve deck, and the valve deck is located at shell The surface of body 101.

In the present embodiment, the air inlet 3 and gas outlet 17 are laid on the same line.

Also, the air inlet 3 and gas outlet 17 are laid in 302 lower part of monoblock type valve body (in the i.e. described lower valve body).

In the present embodiment, 100 upper end of hand torsion bar, which is also equipped with, mentions button 301.

The valve opening closing assembly includes open and close transmission mechanism and is used for open and close air inlet 3 and/or goes out The blow vent closeouts of port 17.

In the present embodiment, the blow vent closeouts are that the air inlet closeouts of open and close are carried out to air inlet 3.

The open and close transmission mechanism is laid in the middle valve chamber, and the open and close transmission mechanism is also referred to as valve Executing agency.The armature 206 of breaking is installed on the open and close transmission mechanism.

In actual use, the open and close transmission mechanism can use any valve actuator, especially self-closing Used valve actuator can be used as the open and close transmission mechanism on valve, and only needing can be by transmission to air inlet 3 It is opened or closed.The open and close transmission mechanism is also referred to as switch drive.

In the present embodiment, the open and close transmission mechanism is swing arm open and close transmission mechanism 303.

The swing arm open and close transmission mechanism 303 includes being laid in the guiding that in the middle valve chamber and can be moved up and down Block 208 and it can be carried out and swing up and down and drive blow vent closeouts to be moved left and right to open or close to air inlet 3 Upper swing arm 209, the guide pad 208 connect by upper swing arm 209 with the blow vent closeouts, the upper swing arm 209 and It is attached in hinged way between guide pad 208 and the blow vent closeouts.

In the present embodiment, the articulation piece is flexural pivot.The upper swing arm 209 is blocked with guide pad 208 and the blow vent It can also be attached by other types of articulation piece between part.

The blow vent closeouts include the connecting rod that one end is connect with upper swing arm 209 in hinged way and are laid in described The air inlet plug 210 of the connecting rod other end.The air inlet plug 210 is located in air inlet 3 and it is located at the middle valve chamber Outside.In actual use, other closeouts such as sealing plate can also be used in the blow vent closeouts.

In actual use, 208 top of guide pad is fixed on small 201 bottom of epithelium, the small 201 middle part lower section of epithelium It is provided with the fixed plate for fixed guide block 208.The armature 206 of breaking is fixed on 208 bottom of guide pad.The guide pad 208 along hand torsion bar 100 central axis lay.

In the present embodiment, the shifting axle is laid with hand torsion bar 100 in coaxial, and the guide pad 208 is located at the movement Between axis and hand torsion bar 100, the guide pad 208 is located at the underface of hand torsion bar 100.

In the present embodiment, the closed magnet 203 and to break magnet 205 be circular ring magnet, the closed magnet 203 It is fixedly mounted on small 201 upper center of epithelium by upper fixing axle, the magnet 205 of breaking is fixedly mounted on by lower fixing axle 201 upper center of big epithelium.The closed magnet 203 and break magnet 205 with hand torsion bar 100 in it is coaxial laying, it is described to close Close magnet 203 and break magnet 205 in parallel laying and the two with the perpendicular laying of hand torsion bar 100.The closed magnet 203 Middle part is provided with the mounting hole for the installation of fixed axis, and described break is provided with for the lower fixing axle installation in the middle part of magnet 205 Mounting hole.

The closure armature 204 and to break armature 206 be iron plate.It is described to break armature 206 as round armature and it is solid Be scheduled on 208 bottom of guide pad, it is described break armature 206 and the perpendicular laying of hand torsion bar 100 and its with break magnet 205 in parallel It lays.The closure armature 204 includes with closed magnet 203 in the parallel circular ring shape armature laid and being fixed on circular ring shape armature Surface and it is coaxially installed on the cylindric armature in the upper mounting holes, the circular ring shape armature is located at top installation Immediately below hole, the closure armature 204 is laid with hand torsion bar 100 in coaxial.

In the present embodiment, transmission mechanism that the switch drive is made of upper swing arm 209 and guide pad 208.

In the present embodiment, the swing arm open and close transmission mechanism 303 further includes being oriented to the connecting rod Guide holder 210 makes the connecting rod carry out left and right linear movement by guide holder 210, to drive the blow vent closeouts It is moved left and right and air inlet 3 is opened or closed.

The guide holder 210 is laid in the middle valve chamber and on its inner sidewall for being fixed on the self-closing valve body.For Reliability of Microprocessor is further increased, the swing arm open and close transmission mechanism 303 further includes being connected to guide holder 210 and guiding Lower swing arm 211 between block 208, the upper swing arm 209 and lower swing arm 211 are straight-bar, the lower swing arm 211 and guide holder It is attached in hinged way between 210 and guide pad 208, the lower swing arm 211 is located at 209 lower section of upper swing arm.

In the present embodiment, by upper hinged between the upper swing arm 209 and guide pad 208 and the blow vent closeouts Axis is attached, and is provided with and is supplied on described in the connecting rod of the upper swing arm 209, guide pad 208 and the blow vent closeouts The hinge hole of articulated shaft installation；Connected in hinged way between the lower swing arm 211 and guide holder 210 and guide pad 208 It connects, the hinge hole for the lower articulated shaft installation is provided on the lower swing arm 211, guide holder 210 and guide pad 208.

Meanwhile the swing arm open and close transmission mechanism 303 further includes hinged seat 212, the upper swing arm 209 with it is described It is attached by hinged seat 212 between blow vent closeouts and between lower swing arm 211 and guide holder 210, it is described hinged 212 tops of seat are provided with the hinge hole for the upper articulated shaft installation, and 212 lower part of hinged seat is provided with for the lower articulated shaft peace The hinge hole of dress.

Before actual use, first by manually pushing down on torsion bar 100 of starting, at this time closed magnet 203 and closure armature 204 In discrete state, the guide pad 208 is moving downward simultaneously closure armature 204 and closed magnet 203 until the upper end Mutually separate；And during guide pad 208 moves down, drive the blow vent closeouts fixed on upper swing arm 209 outside Side is mobile (moving right), so that air inlet plug 210 is separated with air inlet 3, opens valve, and gas is from air inlet at this time 3 enter valve inner.

Also, during the guide pad 208 moves down, the plugging type moving member is pushed to move down, and by institute The movable plate for stating plugging type moving member is pushed into 101 inside bottom of shell, so that the automatic delay function part is entered delay and closes Closed state.

For the effect that pushes down on for ensuring guide pad 208, big 202 bottom of epithelium is provided with lower impeller.

In the present embodiment, the bottom end of the lower fixing axle extend out to big 202 lower section of epithelium, and the lower fixing axle bottom end is stretched out Segment to big 202 lower section of epithelium is the lower impeller.

To ensure fixed effect, the lower fixing axle bottom end is locked by fastening nut, the fastening nut Immediately below big epithelium 202 and its coaxial package is in the lower fixing axle.

When normal gas supply, the normal barometric pressure in the middle valve chamber generates outside push away to small epithelium 201 and big epithelium 202 Power (wherein the cuticle film 201 bears upward thrust, and big epithelium 202 bears downward thrust), due to being held on small epithelium 201 The thrust received is less than the thrust born on big epithelium 202, and the normal barometric pressure in the middle valve chamber acts on small 201 He of epithelium Thrust difference on big epithelium 202 can overcome the suction-combining force between closure armature 204 and closed magnet 203, make to be closed armature 204 with Closed magnet 203 is in discrete state always, breaks magnet 205 at this time and breaks armature 206 and be in attracting state, to make to fire Gas self-closing valve is kept it turned on, and realizes normal gas supply.

In actual use, when abnormal conditions occurs in 3 side of air inlet, the gas self-closing valve can be normally carried out It closes, realizes that valve is closed particular by (the i.e. described blow vent closeouts) are closed at air inlet 3, be mainly reflected in following two A aspect:

The first, the pressure inside valve chamber (i.e. the pressure of air inlet 3) is lower than authorized pressure value or when stopping the supple of gas or steam in the middle, due in The outward thrust that valve chamber internal gas acts on small epithelium 201 and big epithelium 202 reduces or disappears, and accordingly makes middle valve chamber Internal gas acts on the thrust difference on small epithelium 201 and big epithelium 202 and reduces or disappear, and makes to be closed armature 204 and closed magnetic It is attracted between iron 203, and guide pad 208 is driven to move up, so that valve be made to close；

The second, when the pressure inside valve chamber (i.e. the pressure of air inlet 3) gradually or suddenly increases to overpressure of gas in the middle, by Increase in the outward thrust that middle valve chamber internal gas acts on small epithelium 201 and big epithelium 202, makes to break 205 He of magnet The separation of armature 206 is broken, and makes to be closed attracted between armature 204 and closed magnet 203, and drives guide pad 208 to moving up It is dynamic, so that valve be made to close.

As shown in the above, when abnormal conditions occurs in 3 side of air inlet, the two-flow dual control self-closing valve can be 3 side of air inlet is normally carried out closing, realizes that fuel gas pipeline is automatically closed.

When 3 side of air inlet abnormal conditions does not occur, to normally supply to the delay pass of the automatic delay function part At the end of closing the time, push rod 300 moves up and big epithelium 202 is pushed to move up, be provided in the middle part of the big epithelium 202 by The upper push-rod 401 that push rod 300 is pushed, push rod 300 (i.e. lower push-rod) push upper push-rod 401 synchronous with big epithelium 202 upwards It is mobile, and make to break magnet 205 and break the actuation of armature 206；After breaking magnet 205 and breaking the actuation of armature 206, push rod 300 push the guide pad to move up, and one end of the blow vent closeouts is fixed in swing arm described in synchronous drive inwardly (i.e. closing direction) is mobile, until valve is closed.

In actual use, the valve switch transmission mechanism is pushed to move a certain distance (greatly to closing direction to push rod 300 About 2mm or so) after, closure the distance between armature 204 and closed magnet 203 reduce and the suction-combining force geometric progression between the two Increase, to make to be closed armature 204 and the actuation of closed magnet 203, closes valve.

In actual use, the switch drive can also be with other types of biography employed in existing self-closing valve Motivation structure, such as wedge mechanism, rocker arm assembly.The switch drive top is fixed on small 201 bottom of epithelium, described to break Armature 206 is installed on the switch drive bottom.

When normal gas supply, since the normal barometric pressure in the middle valve chamber acts on pushing away on small epithelium 201 and big epithelium 202 Power difference can overcome the suction-combining force between closure armature 204 and closed magnet 203, be in closure armature 204 with closed magnet 203 It discrete state and breaks magnet 205 and breaks armature 206 and be in attracting state, need to only break magnet 205 at this time and break armature 206 adhesive action can drive the switch drive to act and accordingly the blow vent closeouts can be driven to move outward Open air inlet 3.When abnormal conditions occurs in 3 side of air inlet, makes to break magnet 205 and breaks the separation of armature 206, And make to be closed attracted between armature 204 and closed magnet 203, it need to only be closed the actuation of armature 204 Yu closed magnet 203 at this time The switch drive can be driven to act for movement and accordingly driving the blow vent closeouts to move inward closes air inlet 3 It closes.

In the present embodiment, structure, connection relationship and the working principle of used automatic delay function part with 2 phase of embodiment Together.

Embodiment 4

A kind of gas self-closing valve with timing closing function as shown in Figure 5, including inlet 3 and gas outlet 17 Self-closing valve body, the bottom of the self-closing valve body are provided under shed, and the automatic pass of the delay is equipped on the outside of the under shed Closing member, the shell 101 of the automatic delay function part are the closeouts blocked to the under shed.

Valve opening closing assembly in the self-closing valve body is connected by reverse drive mechanism and shifting axle transmission It connects.Wherein, the shifting axle is lower push-rod, and specifically push rod 300 is lower push-rod.The gas self-closing valve is that the delay is automatic The described of closure member is closed object.

In the present embodiment, the self-closing valve body is with 101 forming closed shell of shell and the two is fastenedly connected and is integrated.

In actual use, the reverse drive mechanism is lever drive structure, gear drive or jointed gear unit.

The shifting axle of the automatic delay function part is to push the valve opening closing assembly pair after moving up Valve that air inlet 3 or gas outlet 17 are closed closes driving part, the valve opening closing assembly be to air inlet 3 or Gas outlet 17 carries out the time opening group for driving the shifting axle to move down by the reverse drive mechanism in opening procedure Part.

As shown in the above, very small to the change of existing gas self-closing valve in the present embodiment, it is described anti-by adding It to transmission mechanism, be used cooperatively the automatic delay function part can directly with existing various types gas self-closing valve, only It need to start under shed in the body base of existing gas self-closing valve and the reverse drive mechanism and the automatic pass of the delay are installed Closing member can make existing gas self-closing valve have timing closing function.

In the present embodiment, the self-closing valve body includes by valve deck 1 and being provided with air inlet 3 and the valve seat 2 of gas outlet 17 is right The valve body for detaining composition, is equipped with corrugated rubber film 6 in the self-closing valve body, and the corrugated rubber film 6 is by the self-closing valve valve The inner cavity of body is divided into two cavitys up and down and upper and lower two cavitys are respectively top valve chamber and lower part valve chamber, by 1 middle part institute of valve deck Valve opening cap bore is inserted into intracavitary 100 lower end of hand torsion bar of the upper valve and is fixedly connected with corrugated rubber film 6, and the valve opening closes Closing component is the intracavitary set component opened or closed to air inlet 3 of the lower valve.The automatic delay function The upper channel of push rod 300 is connected to the intracavitary portion of the lower valve in part.

As shown in figure 5, in the present embodiment, the valve opening closing assembly includes open and close transmission mechanism and for opening Open the blow vent closeouts for closing air inlet 3 and/or gas outlet 17.

In the present embodiment, the blow vent closeouts are the air inlet closeouts for open and close air inlet 3.

The permanent magnet 4 for being fixedly mounted on the switch drive upper end, installation are provided in the self-closing valve body Armature 18 is limited and positioned at 4 surface of permanent magnet in the intracavitary middle part of the lower valve and immediately below permanent magnet 4 Upper armature 5, upper armature 5 is fixed on corrugated rubber film 6 and it is fixedly connected with the lower end of hand torsion bar 100.The open and close The upper end of transmission mechanism (also referred to as switch drive) passes through from the middle part of limit armature 18 and limits correspondence in the middle part of armature 18 and opens There is the through-hole passed through for the switch drive upper end, the air inlet closeouts are mounted under the switch drive End；The upper armature 5, permanent magnet 4 and limit armature 18 match, and the switch drive is in upper armature 5, permanent magnetic The air inlet closeouts are driven to open or close air inlet 3 under the mating reaction of iron 4 and limit armature 18.

In the present embodiment, the air inlet 3 is circumscribed with the pipe screw thread formula air inlet connections 25 an of regular hexagon, pipe screw thread Formula air inlet connections 25 are integrated with the production of valve seat 2, and the two forms air intake passage.In addition, gas outlet 17 is circumscribed with Manual angular Valve 14, and the Pagoda-shaped outlet interface 16 being arranged by its outer end connects with the rubber hose of gas cooker.On the valve deck 1 also There are two spiracles 9 for setting, and two spiracles 9 are symmetrical set.The hand torsion bar 100 and the upper armature 5 of its lower end make It being integrated, corrugated rubber film 6 is fixed on 5 top of upper armature by nut 8, i.e. upper armature 5 is located at 6 lower section of corrugated rubber film, and And tabletting 7 is lined between corrugated rubber film 6 and nut 8.Meanwhile 100 upper end of hand torsion bar is also equipped with and mentions button 11.The air inlet Pipe screw thread formula air inlet connections 25 are provided on 3.

The switch drive includes being laid in the intracavitary lower valve and the master control bar 29 that can move up and down and left and right Mobile positioning blocked shot 32,2 bottom of valve seat is correspondingly arranged on the recessed portion 22 moved up and down for master control bar 29, in recessed portion 22 2 bottom inside of valve seat of the left and right sides be provided with limiting stand 31.

In the present embodiment, the limit armature 18 is the armature of cross section convex shape, and limits armature 18 and pacified by screw On limiting stand 31.The permanent magnet 4 is laid in 29 upper end of master control bar, 29 top of master control bar pass through limit armature 18 and its Middle part is provided with slanted channel 27, and the lower end of master control bar 29 is provided with the reset spring 21 of reset.The slanted channel 27 is The oblique groove matched with boss 26 or that opens be tilted towards channel.

In the present embodiment, the slanted channel 27 be arranged in the middle part of master control bar 29 open be tilted towards channel, limit The master control bar mounting hole passed through for 29 top of master control bar is provided in the middle part of armature 18.The air inlet closeouts are to be laid in positioning plug Other closeouts such as sealing plate can also be used in the air inlet plug 19 of 32 front end of bar, in actual use, the air inlet closeouts.

Positioning 32 rear portion of blocked shot is provided with the boss 26 matched with slanted channel 27, and the air inlet plug 19 is It is mounted on the dome-type rubber plug in 28 outside of longitudinal gasket of positioning 32 end of blocked shot.The positioning blocked shot 32 is mounted on limit On platform 31,31 top of limiting stand is provided with the groove moved left and right for positioning blocked shot 32, and the groove is constituted for positioning blocked shot 32 The channel moved left and right, positioning blocked shot 32 can only be moved left and right along this channel.

Thus, in the present embodiment, the switch drive is by master control bar 29 and the wedge mechanism that forms of positioning blocked shot 32.

In actual use, the switch drive can also be using the driver by rocker arm assembly and link assembly Other types such as structure.

For convenience of promotion, 29 bottom of master control bar is provided with upper push-rod 401.The upper push-rod 401 and the lower push-rod Between be sequentially connected by the reverse drive mechanism, the upper push-rod 401 and the lower push-rod in it is parallel lay and its It is laid in the surface of the lower push-rod.

When normal gas supply, by artificial pull-up hand torsion bar 100 and its is made to expose 12 position of green ring first, at this point, upper armature 5 It is in attracting state with permanent magnet 4, master control bar 29 moves up under the magnetic force, until the permanent magnet 4 of the upper end It is attracted with upper armature 5；And during master control bar 29 moves up, accordingly drive the boss matched with its slanted channel 27 26 move in slanted channel 27, then accordingly drive positioning blocked shot 32 mobile to separate 3 side of air inlet from boss 26, to make The air inlet plug 19 filled on blocked shot 32 must be positioned to be separated with air inlet 3, open valve, gas is from air inlet 3 at this time Into valve inner.Red ring 13 is provided with below the green ring 12.

Also, during artificial pull-up hand torsion bar 100 and the master control bar 29 move up, master control bar 29 passes through described anti- The lower push-rod is pushed down on to transmission mechanism, that is, the plugging type moving member is pushed to move down, and by the plugging type The movable plate of moving member is pushed into 101 inside bottom of shell, and the automatic delay function part is made to enter time-delay closing state.

In actual use, when abnormal conditions occurs in 3 side of air inlet, the gas self-closing valve can be normally carried out It closes, realizes that valve is closed particular by (the i.e. described air inlet closeouts) are closed at air inlet 3, be mainly reflected in following two A aspect:

The first, when the pressure (i.e. the pressure of air inlet 3) inside the valve chamber of lower part gradually or suddenly increases to overpressure of gas, Corrugated rubber film 6 is driven upper armature 5 to move up by pressure influence, and the upper bottom of the master control bar 29 due to the intracavitary portion of lower valve Stroke limiting position armature 18 is moved to limit, thus corrugated rubber film 6 moves upwardly so that upper armature 5 and is fixed on 29 upper end of master control bar 4 phase of permanent magnet separation；And at this point, limit the magneticaction between armature 18 due to permanent magnet 4 and below, make permanent Magnet 4 and limit armature 18 are attracted, so that master control bar 29 be driven to move down.In this way, moving down process in master control bar 29 In, accordingly the boss 26 matched with its slanted channel 27 is driven to move in slanted channel 27, then accordingly driven by boss 26 Blocked shot 32 is positioned to close to the movement of 3 side of air inlet, so that air inlet plug 19 be made to seal air inlet 3, is closed from air inlet 3 Valve guarantees that entire valve body is in and shuts state.

The second, when the pressure (i.e. the pressure of air inlet 3) inside the valve chamber of lower part is lower than authorized pressure value or stops the supple of gas or steam, due to Lower valve chamber internal gas is weaker to the ejection force of corrugated rubber film 6 or there's almost no, and upward active force is less than permanent magnetic Magnetic force between iron 4 and below limit armature 18, thus permanent magnet 4 and limit armature 18 are attracted, to drive master control Bar 29 moves down.In this way, (at this point, being beaten as the valve opening closing assembly is in during master control bar 29 moves down Open state can then realize that the valve opening closing assembly automatically resets simultaneously), corresponding drive matches with its slanted channel 27 Boss 26 moved in slanted channel 27, then accordingly drive from boss 26 positioning blocked shot 32 to mobile close to 3 side of air inlet, To make air inlet plug 19 seal air inlet 3, valve is closed from air inlet 3, is guaranteed that entire valve body is in and is shut state.

As shown in the above, when abnormal conditions occurs in 3 side of air inlet, the gas self-closing valve can be in air inlet 3 sides are normally carried out closing, realize that fuel gas pipeline is automatically closed.

When 3 side of air inlet abnormal conditions does not occur, to normally supply to the delay pass of the automatic delay function part At the end of closing the time, push rod 300 (the i.e. described lower push-rod) moves up and drives master control bar 29 by the reverse drive mechanism It moves down, until valve is closed, to realize valve timing closing function, also referred to as valve automatic delay function.

In the present embodiment, the reverse drive mechanism is reverse box 402, and the reverse drive mechanism is by two The gear wheel reversing mechanism of the reverse box composition of a 90 ° of commutations.

The reverse drive mechanism can also use other types of reverse transmission, and need to only be able to satisfy reverse drive needs It asks, even if the lower push-rod is opposite with the moving direction of upper push-rod 401.

In actual use, the stroke of the lower push-rod is c times of 401 stroke of upper push-rod.Wherein, c is constant and c=1.5 ~5.The lower push-rod is with the moving direction of upper push-rod 401 on the contrary, the lower push-rod and upper push-rod 401 are laid and the two in parallel Moved along center axis thereof.That is, the upper push-rod 401 move down and its moving displacement be d when, under described Push rod moves up and its moving displacement is c × d；When the upper push-rod 401 moves up and its moving displacement is d, under described Push rod moves down and its moving displacement is c × d.

In the present embodiment, structure, connection relationship and the working principle of used automatic delay function part with 1 phase of embodiment Together.

Embodiment 5

As shown in fig. 6, in the present embodiment, used gas self-closing valve as different from Example 4: the reverse drive machine Structure includes two in the X-shaped reversing mechanism laid in parallel；

The X-shaped reversing mechanism includes two reversed push rods 403 being symmetrically arranged, and two reversed push rods 403 are For inclination straight-bar and the two is laid on same vertical plane；Between two reversed push rods 403 by fixed hinge axis 404 into Row connection, the upper and lower side of each reversed push rod 403 are mounted on sliding block 405, the sliding block 405 and the reversed push rod It is attached between 403 by articulated shaft 406；The sliding block 405 of 403 upper end of reversed push rod is installed on 401 bottom of upper push-rod In the guide groove 417 opened up, the sliding block 405 of reversed 403 lower end of push rod is installed on the guiding opened up at the top of the lower push-rod In slot 417, the guide groove 417 be straight-line groove and its be laid on same vertical plane with reversed push rod 403.The fixed hinge The both ends of axis 104 are fixedly installed in the self-closing valve body.

In actual use, when upper push-rod 401 moves up, since fixed hinge axis 404 is fixed, reverse push is driven 403 upper end of bar moves up, and make reversed push rod 403 tilt angle (refer to reversed push rod 403 and the lower push-rod cross section it Between angle) be gradually increased, while pushing the lower push-rod to move down by reversed push rod 403；Correspondingly, it is pushed away under described When bar moves up, reversed 403 lower end of push rod is driven to move up, and be gradually reduced the tilt angle of reversed push rod 403, together When by reversed push rod 403 drive upper push-rod 401 move down, to achieve the purpose that reverse drive.

In actual use, by being carried out to installation site of the fixed hinge axis 404 on two reversed push rods 403 Lower adjustment adjusts accordingly the stroke of the lower push-rod and the travel proportional relationship of upper push-rod 401.In the present embodiment, institute The stroke for stating lower push-rod is 1.5 times~5 times of 401 stroke of upper push-rod, and the lower push-rod is identical as the moving direction of upper push-rod 401 And the moving direction of the two is opposite.

In the present embodiment, rest part structure, connection relationship and the working principle of the gas self-closing valve with embodiment 4 It is identical.

In the present embodiment, structure, connection relationship and the working principle of used automatic delay function part with 4 phase of embodiment Together.

Embodiment 6

As shown in fig. 7, in the present embodiment, used gas self-closing valve as different from Example 4: the reverse drive machine Structure includes multiple gear wheel reversing mechanisms along the circumferential direction laid；

The structure of multiple gear wheel reversing mechanisms is all the same and it is in uniformly distributed, and each gear wheel reversing mechanism is equal Central axial direction along the lower push-rod is laid；

Each gear wheel reversing mechanism include gear 407 and be located at the lower section of gear 407 and with 407 phase of gear The lower gear 408 of engagement, the gear 407 are opposite with the rotation direction of lower gear 408；Outside the lower part of the upper push-rod 401 The peripherally disposed upper promotion tooth 409 for thering are multiple groups to be meshed respectively with gear 407 on side wall；The top of the lower push-rod The peripherally disposed lower promotion tooth 410 for there are multiple groups to be meshed respectively with lower gear 408 is provided on lateral wall.

In actual use, when the upper push-rod 401 moves up, gear 407 is pushed to be rotated, and accordingly drive Lower gear 408 is rotated, so that the lower push-rod be driven to move downward simultaneously；Correspondingly, when the lower push-rod moves up When, push lower gear 408 to be rotated, and accordingly gear 407 is driven to be rotated, thus drive upper push-rod 401 synchronous to Lower movement, to achieve the purpose that reverse drive.

In the present embodiment, rest part structure, connection relationship and the working principle of the gas self-closing valve with embodiment 4 It is identical.

In the present embodiment, structure, connection relationship and the working principle of used automatic delay function part with 4 phase of embodiment Together.

Embodiment 7

As shown in figure 8, in the present embodiment, used gas self-closing valve as different from Example 4: the reverse drive machine Structure includes that cylindrical push covers 411 and multiple tumbler gears 412 along the circumferential direction laid；

The structure of multiple tumbler gears 412 is all the same and it is in uniformly distributed, the equal edge of each tumbler gear 412 The central axial direction of the lower push-rod is laid；The cylindrical central axial direction cloth for pushing set 411 along the lower push-rod And if it is laid at the top of the lower push-rod；

It is peripherally disposed on the lower outside wall of the upper push-rod 401 to there are multiple groups to nibble respectively with 412 phase of tumbler gear The interior promotion tooth 413 closed, be provided on the cylindrical inner sidewall for pushing set 411 it is peripherally disposed have multiple groups respectively with The extrapolation movable tooth 414 that tumbler gear 412 is meshed.

In actual use, when the upper push-rod 401 moves up, tumbler gear 412 is pushed to be rotated, and corresponding band The lower push-rod is moved to move downward simultaneously；Correspondingly, when the lower push-rod moves up, 412 turns of tumbler gear are pushed It is dynamic, and accordingly upper push-rod 401 is driven to move downward simultaneously, to achieve the purpose that reverse drive.

In the present embodiment, rest part structure, connection relationship and the working principle of the gas self-closing valve with embodiment 4 It is identical.

In the present embodiment, structure, connection relationship and the working principle of used automatic delay function part with 4 phase of embodiment Together.

Embodiment 8

As shown in figure 9, in the present embodiment, used gas self-closing valve as different from Example 4: the reverse drive machine Structure includes that cylindrical push covers 411 and multiple straight telescopic rods 415 along the circumferential direction laid；

The structure of multiple straight telescopic rods 415 is all the same and it is in uniformly distributed, each straight telescopic rod 415 Laid along the central axial direction of the lower push-rod；Each straight telescopic rod 415 is from top to bottom gradually inclined outwardly； The upper end of each straight telescopic rod 415 is mounted on 401 outside of the upper push-rod with articulated manner, each described straight to stretch The lower end of contracting bar 415 is mounted in hinged way on the cylindrical inner sidewall for pushing set 411.

In actual use, when the upper push-rod 401 moves up, straight 415 upper end of telescopic rod is pushed to move up, and It is gradually increased the tilt angle of straight telescopic rod 415, while pushing the lower push-rod to moving down by straight telescopic rod 415 It is dynamic；Correspondingly, when the lower push-rod moves up, straight 415 lower end of telescopic rod is driven to move up, and make straight telescopic rod 415 tilt angle is gradually reduced, while pushing upper push-rod 401 to move down by straight telescopic rod 415, to reach reversed The purpose of transmission.

In the present embodiment, rest part structure, connection relationship and the working principle of the gas self-closing valve with embodiment 4 It is identical.

In the present embodiment, structure, connection relationship and the working principle of used automatic delay function part with 4 phase of embodiment Together.

Embodiment 9

As shown in figure 5, in the present embodiment, the structure of used automatic delay function part, connection relationship and working principle are equal It is same as Example 4.

In the present embodiment, used gas self-closing valve as different from Example 4: the reverse drive mechanism be connected to Reverse drive shaft coupling between the upper push-rod 401 and the lower push-rod.

In the present embodiment, rest part structure, connection relationship and the working principle of the gas self-closing valve with embodiment 4 It is identical.

In the present embodiment, structure, connection relationship and the working principle of the automatic delay function part with 4 phase of embodiment Together.

Embodiment 10

As shown in Figure 10, in the present embodiment, used gas self-closing valve as different from Example 4: the valve opening Closing assembly include switch drive, for open and close air inlet 3 air inlet closeouts, be fixedly mounted on the switch The permanent magnet 4 of transmission mechanism upper end, the lower armature for being installed on the intracavitary middle part of the lower valve and being located at immediately below permanent magnet 4 15 and the upper armature 5 right above permanent magnet 4, upper armature 5 is fixed on corrugated rubber film 6 and itself and hand torsion bar 100 Lower end is fixedly connected.

The upper end of the switch drive is passed through from the middle part of lower armature 15 and correspondence is provided with described in confession in the middle part of lower armature 15 The through-hole that switch drive upper end passes through, the air inlet closeouts are mounted on the switch drive lower end；On described Armature 5, permanent magnet 4 and lower armature 15 match, and the switch drive is in upper armature 5, permanent magnet 4 and lower armature The air inlet closeouts are driven to open or close air inlet 3 under 15 mating reaction.

In the present embodiment, the air inlet 3 and gas outlet 17 are laid on the same line, and the big flow gas outlet 201 between air inlet 3 and gas outlet 17.

It in the present embodiment, is fixed between valve deck 1 and valve seat 2 by bolt, valve deck 1 and 2 edge of valve seat are equal It is provided with bolt mounting holes；2 rear and front end of valve seat is respectively provided with air inlet 3 and gas outlet 17.In addition, gas outlet 17 is circumscribed with manually Angle valve 14.

In the present embodiment, the hand torsion bar 100 and the production of upper armature 5 of its lower end are integrated, and corrugated rubber film 6 is fixed on 5 top of upper armature, i.e. upper armature 5 are located at 6 lower section of corrugated rubber film.Meanwhile 100 upper end of hand torsion bar is also equipped with and mentions button 11.

In the present embodiment, the open and close transmission mechanism includes that be laid in the lower valve intracavitary and can move up and down It guide rod 33 and can be carried out the rocker arm 34 rotated upwardly and downwardly, be attached in hinged way between the rocker arm 34 and guide rod 33. Meanwhile it being attached in hinged way between described 34 one end of rocker arm and valve seat 2.The other end of the rocker arm 34 and the air inlet Mouth closeouts connection.34 bottom of rocker arm is equipped with upper push-rod 401, and the upper push-rod 401 is located at the automatic delay function Right above the push rod 300 of part.The upper channel of the push rod 300 is connected to the intracavitary portion of the lower valve.

Easy for connection, the rocker arm 34 and guide rod are attached between 33 lower end by articulation piece.

In the present embodiment, the articulation piece is flexural pivot.Other classes can also be passed through between the rocker arm 34 and guide rod 33 The articulation piece of type is attached.

In the present embodiment, be attached between described 34 one end of rocker arm and valve seat 2 by shaft 35, the shaft 35 with lead To the perpendicular laying of bar 33.

In actual use, it can also be attached between described 34 one end of rocker arm and valve seat 2 with other articulated manners, need to only be shaken Arm 34, which can be carried out, to be rotated upwardly and downwardly.

In the present embodiment, the upper armature 5 and lower armature 15 with the perpendicular laying of guide rod 33, the upper armature 5 with Lower armature 15 is laid in parallel.The upper armature 5 is located at right above guide rod 33, and the guide rod 33 is from the bottom to top from lower armature The through-hole at 15 middle parts passes through, and the through-hole is the through-hole passed through for guide rod 33, and lower armature 15 is fixed on rocker arm 34.Institute It states permanent magnet 4 and is laid in 33 upper end of guide rod, 33 top of guide rod passes through lower armature 15 and its underpart and rocker arm 34 are hinged.It is real Border is in use, the lower armature 15 can also be fixed on valve seat 2.

The air inlet closeouts are the air inlet plug 19 for being laid in 34 other end of rocker arm, in actual use, it is described into Other closeouts such as sealing plate can also be used in port closeouts.For convenience of connection, the other end of the rocker arm 34 is provided with for connecting The connecting rod 36 of port plug 19 is tapped into, the air inlet plug 19 is the dome-type rubber plug of 36 end of connecting rod.Meanwhile 2 inside bottom of valve seat, which is additionally provided with, carries out the guide holder 38 that guiding is moved forward and backward connecting rod 36 to connecting rod 36.

In the present embodiment, transmission mechanism that the switch drive is made of rocker arm 34 and guide rod 33.Actual use In the process, the switch drive can also be with other types of transmission mechanism employed in existing self-closing valve.

When actually laying and installing, the rocker arm 34 is laid between air inlet 3 and gas outlet 17.

In the present embodiment, the shaft 35 is laid close to 17 side of gas outlet, and the impeller is close to gas outlet 17 It lays side.

In actual use, the course of work of the gas self-closing valve is: the movement of the guide rod 33 is mainly made by three kinds Firmly determine, i.e., in hand torsion bar 100, the gravity of guide rod 33 and its accessory itself, the magnetic force of permanent magnet 4 and lower part valve chamber from Air inlet 3 enters the pressure of valve inner gas.

When normal gas supply, first by artificial pull-up hand torsion bar 100, upper armature 5 and permanent magnet 4, which are in, at this time is attracted shape State, guide rod 33 move up under the magnetic force, until the permanent magnet 4 and upper armature 5 of the upper end are attracted；And it is leading It is corresponding that rocker arm 34 is driven to rotate during being moved up to bar 33, and make to fix the air inlet closeouts on rocker arm 34 One end is rotated to far from 36 side of shaft, to drive air inlet plug 19 to far from the movement of 36 side of shaft, keeps air inlet stifled First 19 are separated with air inlet 3, open valve, and gas enters valve inner from air inlet 3 at this time.

In actual use, when abnormal conditions occurs in 3 side of air inlet, the gas self-closing valve can be normally carried out It closes, realizes that valve is closed particular by (the i.e. described air inlet closeouts) are closed at air inlet 3, be mainly reflected in following two A aspect:

The first, when the pressure (i.e. the pressure of air inlet 3) inside the valve chamber of lower part gradually or suddenly increases to overpressure of gas, Corrugated rubber film 6 is driven upper armature 5 to move up by pressure influence, and the upper bottom of the guide rod 33 due to the intracavitary portion of lower valve Journey is migrated by lower armature 15 (also referred to as limit armature) limitation, thus corrugated rubber film 6 moves upwardly so that upper armature 5 and fixes 4 phase of permanent magnet in 33 upper end of guide rod separates；And at this point, due to the permanent magnet 4 and below magnetic between lower armature 15 Power effect, keeps permanent magnet 4 and lower armature 15 attracted, so that guide rod 33 be driven to move down.In this way, guide rod 33 to It is corresponding that rocker arm 34 is driven to rotate during lower movement, and it is rotated up one end that the impeller is fixed on rocker arm 34, Rotate the one end for fixing the air inlet closeouts on rocker arm 34 to close to 36 side of shaft, to drive air inlet stifled First 19, to close to the movement of 36 side of shaft, so that air inlet plug 19 be made to seal air inlet 3, close valve from air inlet 3, protect Demonstrate,prove entire valve body be in shut state.

The second, when the pressure (i.e. the pressure of air inlet 3) inside the valve chamber of lower part is lower than authorized pressure value or stops the supple of gas or steam, due to Lower valve chamber internal gas is weaker to the ejection force of corrugated rubber film 6 or there's almost no, and upward active force is less than permanent Magnetic force between magnet 4 and below lower armature 15, thus permanent magnet 4 and lower armature 15 are attracted, to drive guide rod 33 move down.Similarly, corresponding that rocker arm 34 is driven to rotate during guide rod 33 moves down, and make fixed on rocker arm 34 One end of the impeller is rotated up, while making the one end for fixing the air inlet closeouts on rocker arm 34 to close to shaft 36 Side rotation, to drive air inlet plug 19 mobile to close 36 side of shaft, so that air inlet plug 19 be made to seal air inlet Mouth 3 closes valve from air inlet 3, guarantees that entire valve body is in and shuts state.

As shown in the above, when abnormal conditions occurs in 3 side of air inlet, the two-flow dual control self-closing valve can be 3 side of air inlet is normally carried out closing, realizes that fuel gas pipeline is automatically closed.

After the abnormal conditions of 17 side of gas outlet solve, then the two-flow dual control self-closing valve is turned off manually, specifically Manual operation hand torsion bar 100 pushes hand torsion bar 100 upwards, so that permanent magnet 4 and lower armature 15 are attracted, while making permanent Magnet 4 is separated with upper armature 5, at this time valve close, and in valve closing process to the super flow be automatically closed part into Row automatically resets.Later, manual operation hand torsion bar 100 is upward lifting hand torsion bar 100, so that permanent magnet 4 and lower armature 15 It is separated, while keeping permanent magnet 4 and upper armature 5 attracted, valve is opened at this time, and user could just commonly use gas again.

In the present embodiment, rest part structure, connection relationship and the working principle of the gas self-closing valve with embodiment 4 It is identical.

In the present embodiment, structure, connection relationship and the working principle of used automatic delay function part with 4 phase of embodiment Together.

Embodiment 11

As shown in figure 11, in the present embodiment, used gas self-closing valve as different from Example 4: the valve opening Closing assembly is rocker arm assembly 416.416 bottom of rocker arm assembly is provided with upper push-rod 401, and the upper push-rod 401 is located at institute It states right above the push rod 300 of automatic delay function part.The upper channel of the push rod 300 is connected to the intracavitary portion of the lower valve.

The rocker arm assembly 416 both can " pipe gas be super using the patent of invention of Patent No. 200720032879.3 Under-voltage, de- pipe self-closing valve " in the rocker arm assembly that uses, can also be special using the invention of Patent No. 200520079302.9 The rocker arm assembly used in benefit " pipe gas ultra under-pressure, de- pipe stop valve ".In actual use, the rocker arm assembly 416 can also To use other types of rocker arm assembly, it need to only be able to satisfy valve switch movement.In addition, the rocker arm assembly 416 can also Using other types of valve opening closing assembly (also referred to as valve actuator) employed in existing gas self-closing valve.

In the present embodiment, rest part structure, connection relationship and the working principle of the gas self-closing valve with embodiment 4 It is identical.

In the present embodiment, structure, connection relationship and the working principle of used automatic delay function part with 4 phase of embodiment Together.

The above is only presently preferred embodiments of the present invention, is not intended to limit the invention in any way, it is all according to the present invention Technical spirit any simple modification to the above embodiments, change and equivalent structural changes, still fall within skill of the present invention In the protection scope of art scheme.

Claims (26)

1. a kind of automatic delay function part, it is characterised in that: shell (101) including upper opening is laid in shell (101) Middle side part and can along the plugging type moving member that shell (101) central axis moves up and down, be laid in shell (101) and band That moves that the plugging type moving member moves up moves up actuator and pushes the plugging type moving member along the center of shell (101) The compressed spring (102) that axis moves up, the plugging type moving member, described to move up actuator and compressed spring (102) equal It is laid with shell (101) in coaxial.

2. a kind of automatic delay function part described in accordance with the claim 1, it is characterised in that: the inner cavity of the shell (101) is horizontal Section is that round or regular polygon, the shape of the movable plate are identical as the lumenal cross-section shape of the shell (101).

3. a kind of automatic delay function part according to claim 1 or 2, it is characterised in that: the plugging type moving member packet It includes the shifting axle laid along shell (101) central axis and is coaxially fixedly set on the shifting axle and can be with the shifting axle The movable plate moved up and down, the movable plate and the perpendicular laying of the shifting axle, the inner cavity of the shell (101) passes through The movable plate is divided into upper cavity and the lower chamber immediately below the upper cavity；

The compressed spring (102) is located in the lower chamber and it is supported in plugging type moving member bottom and shell (101) between inside bottom.

4. a kind of automatic delay function part described in accordance with the claim 3, it is characterised in that: the shifting axle includes pushing column (103), the push rod (300) is laid along the central axis of shell (101)；It is provided with lower channel in the promotion column (103), institute It states the channel that lower channel is supplied gas circulation and it lays along the central axis of promotion column (103).

5. a kind of automatic delay function part according to claim 4, it is characterised in that: the shifting axle further includes being laid in The push rod (300) right above column (103) is pushed, the push rod (300) is coaxially connected with promotion column (103) and it is along shell (101) central axis is laid；It is provided with upper channel in the push rod (300), the upper channel is along shell (101) central axis Lay and its with the lower set of channels at the air passage for being connected to the lower chamber with shell (101) outside.

6. a kind of automatic delay function part according to claim 4, it is characterised in that: be provided in the lower channel multiple Inlet channel, the upper channel and multiple inlet channels composition by the lower chamber be connected to shell (101) outside into Air flue；Filler (108) are filled in the lower channel, the inlet channel is the airspace in filler (108).

7. a kind of automatic delay function part described in accordance with the claim 3, it is characterised in that: the actuator that moves up includes to shell The promotion armature (104) and coaxial package that the upper opening of body (101) is blocked are on the shifting axle and are located at promotion rank Promotion magnet (105) immediately below iron (104), the promotion armature (104) is located in shell (101) and it is laid in shell (101) at upper opening；The promotion armature (104) and promotion magnet (105) are respectively positioned on right above the movable plate.

8. a kind of automatic delay function part described in accordance with the claim 3, it is characterised in that: the movable plate includes coaxial fixed Be set in push column (103) on ring plate (106) and to shell (101) with move plate (106) between annular chamber into The annular closeouts (107) that row blocks, the annular closeouts (107) are laid on the outside of ring plate (106)；

Promotion magnet (105) coaxial package is in promotion column (103).

9. a kind of automatic delay function part according to claim 1 or 2, it is characterised in that: in the promotion armature (104) Portion is provided with the through-hole for shifting axle installation, and the through-hole is the pilot hole being oriented to the shifting axle；

The shifting axle is coaxially installed in the pilot hole.

10. a kind of automatic delay function part according to claim 1 or 2, it is characterised in that: the promotion armature (104) Including middle part ring armature and the exterior annular armature for being connected to the middle part ring armature upper outside, the middle part annular rank Iron is the straight armature of circular ring shape and itself and the perpendicular laying of the shifting axle；The diameter of the exterior annular armature from top to bottom by Tapered small and its bottom is fastenedly connected with the middle part ring armature and is integrated, exterior annular armature bottom and the middle part Ring armature is laid on same plane.

11. a kind of automatic delay function part according to claim 5, it is characterised in that: the push rod (300) and promotion column It (103) is cylinder, the diameter of the push rod (300) is no more than the diameter for pushing column (103)；

Promotion column (103) bottom is extend out to below the movable plate, and promotion column (103) bottom outside is coaxially arranged with Stop collar (109), the stop collar (109) are laid in immediately below the movable plate；The movable plate be located at stop collar (109) with It pushes between magnet (105).

12. a kind of automatic delay function part according to claim 8, it is characterised in that: it is described annular closeouts (107) be The annular push plate that can be boosted from the bottom to top and the intracorporal gas of the cavity of resorption is made to be expelled to the upper cavity.

13. a kind of automatic delay function part according to claim 8, it is characterised in that: it is described annular closeouts (107) be Ring-shaped rubber film.

14. a kind of automatic delay function part according to claim 4, it is characterised in that: the promotion column (103) with it is described Movable plate composition is located at the piston in shell (101).

15. a kind of gas self-closing valve with timing closing function using automatic delay function part as described in claim 1, Be characterized in that: the self-closing valve body including inlet (3) and gas outlet (17), the bottom of the self-closing valve body, which is provided with down, opens Mouthful, the automatic delay function part is installed on the outside of the under shed, the shell (101) of the automatic delay function part is to institute State the closeouts that under shed is blocked；

It is equipped in the self-closing valve body small epithelium (201), big epithelium (202), the cuticle is installed on the under shed Film (201) is located above big epithelium (202)；The inner cavity of the self-closing valve body is divided into two up and down by the small epithelium (201) Cavity and upper and lower two cavitys are respectively uuper valve chamber and middle valve chamber, and the promotion armature (104) of the automatic delay function part is located at Below big epithelium (202) and cavity between the two is lower valve chamber；

Hand torsion bar (100) lower end and cuticle in the uuper valve chamber are inserted by self-closing the opened upper mounting holes in valve body top Film (201) is fixedly connected, and is provided in the middle valve chamber and is opened or closed to air inlet (3) and/or gas outlet (17) Valve opening closing assembly；

Top magnetic suck component is provided in the uuper valve chamber, the top magnetic suck component includes being laid in small epithelium (201) On the first magnetic absorption member and be laid in second magnetic absorption member on the self-closing valve body top, second magnetic absorption member is located at described the Above one magnetic absorption member；Middle part magnetic suck component is provided in the middle valve chamber, the middle part magnetic suck component includes being laid in greatly Third magnetic absorption member on epithelium (202) and the 4th magnetic absorption member above the third magnetic absorption member, the 4th magnetic absorption member peace Loaded on the valve opening closing assembly.

16. according to claim 15 with the gas self-closing valve of timing closing function, it is characterised in that: the self-closing valve Valve body is monoblock type valve body.

17. according to the gas self-closing valve described in claim 15 or 16 with timing closing function, it is characterised in that: described big The size of epithelium (202) is greater than the size of small epithelium (201).

18. according to described in claim 15 or 16 with the gas self-closing valve of timing closing function, it is characterised in that: described the One magnetic absorption member is closed magnet (203), and the small epithelium (201) and closed magnet (203) are fastenedly connected with hand torsion bar (100) It is integrated；Second magnetic absorption member is closure armature (204)；

The third magnetic absorption member is to break magnet (205), and the 4th magnetic absorption member is to break armature (206).

19. according to claim 18 with the gas self-closing valve of timing closing function, it is characterised in that: the closed magnetic Iron (203) is supported on small epithelium (201), and the magnet (205) of breaking is supported on big epithelium (202)；The closure armature (204) middle part is provided with the through-hole passed through for hand torsion bar (100), and the closure armature (204) is installed in the upper mounting holes.

20. according to claim 18 with the gas self-closing valve of timing closing function, it is characterised in that: the small epithelium (201) it is located at immediately below big epithelium (202), the closed magnet (203) is located at immediately below hand torsion bar (100), the closure rank Iron (204) is located at right above closed magnet (203), and the promotion armature (104) of the automatic delay function part is located at big epithelium (202) immediately below, the closed magnet (203) is located at the surface of small epithelium (201), and described break magnet (205) are located at greatly The surface of epithelium (202), described break armature (206) are located at the surface for breaking magnet (205).

21. according to the gas self-closing valve described in claim 15 or 16 with timing closing function, it is characterised in that: described small Epithelium (201) passes through annular lower limit part (207) and is fixed on the self-closing valve body, described annular lower limit part (207) position Below small epithelium (201)；The surrounding outer edge of the small epithelium (201) is fastened and fixed to annular lower limit part (207) and institute It states between self-closing valve body；The big epithelium (202) is by pushing armature (104) to be fixed on the self-closing valve body and shell (101) between.

22. a kind of gas self-closing valve with timing closing function using automatic delay function part as described in claim 1, packet Include the self-closing valve body of inlet (3) and gas outlet (17), it is characterised in that: the bottom of the self-closing valve body, which is provided with down, opens Mouthful, the automatic delay function part is installed on the outside of the under shed, the shell (101) of the automatic delay function part is to institute State the closeouts that under shed is blocked；

Valve opening closing assembly in the self-closing valve body passes through reverse drive mechanism and the automatic delay function part Push rod (300) transmission connection.

23. according to the gas self-closing valve with timing closing function described in claim 22, it is characterised in that: the self-closing valve Valve body is with shell (101) forming closed shell and the two is fastenedly connected and is integrated.

24. according to the gas self-closing valve described in claim 22 or 23 with timing closing function, it is characterised in that: described anti- It is lever drive structure, gear drive or jointed gear unit to transmission mechanism.

25. according to the gas self-closing valve described in claim 22 or 23 with timing closing function, it is characterised in that: described to prolong When be automatically closed part the shifting axle be move up after push the valve opening closing assembly to air inlet (3) or outlet The valve that mouth (17) is closed closes driving part, and the valve opening closing assembly is to air inlet (3) or gas outlet (17) the time opening component for driving the shifting axle to move down by the reverse drive mechanism in opening procedure is carried out.

26. according to described in claim 22 or 23 with timing closing function gas self-closing valve, it is characterised in that: it is described from Valve closing valve body includes by valve deck (1) and being provided with the valve body that valve seat (2) make-up of air inlet (3) and gas outlet (17) forms, described It is equipped in self-closing valve body corrugated rubber film (6), the inner cavity of the self-closing valve body is divided by the corrugated rubber film (6) Lower two cavitys and upper and lower two cavitys are respectively top valve chamber and lower part valve chamber, are inserted by institute's valve opening cap bore in the middle part of valve deck (1) Intracavitary hand torsion bar (100) lower end of the upper valve is fixedly connected with corrugated rubber film (6), and the valve opening closing assembly is The intracavitary set component that air inlet (3) is opened or closed of the lower valve.