CN202469121U - Combustion gas self-closing valve with remote closing function in case of flexible pipe shedding or slight leakage - Google Patents
Combustion gas self-closing valve with remote closing function in case of flexible pipe shedding or slight leakage Download PDFInfo
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- CN202469121U CN202469121U CN2011204817032U CN201120481703U CN202469121U CN 202469121 U CN202469121 U CN 202469121U CN 2011204817032 U CN2011204817032 U CN 2011204817032U CN 201120481703 U CN201120481703 U CN 201120481703U CN 202469121 U CN202469121 U CN 202469121U
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Abstract
The utility model discloses a combustion gas self-closing valve with a remote closing function in case of flexible pipe shedding or slight leakage, which comprises a valve body. The valve body is formed by the buckling of a valve cover and a valve seat provided with a gas inlet and a gas outlet. A corrugated rubber membrane equipped inside the valve body divides the inner chamber of the valve body into an upper chamber body and a lower chamber body. The lower end of a hand torsion bar inserted inside the upper valve chamber body through a valve cover hole equipped on the center of the valve cover is connected with the corrugated rubber membrane. A valve opening and closing assembly for opening or closing the gas inlet is equipped inside the lower valve chamber body. The gas inlet can be one with an opening area ranging from 3 mm2 to 28.5 mm2 or one with a caliber adjusting piece coaxially equipped therein, or, either the gas inlet or the gas outlet has a flexible pipe remote automatic closing assembly coaxially equipped therein. The combustion gas self-closing valve provided in the utility model has the characteristics of simple structure, convenient installation, safety, reliability, good using effects and high practical valve. Meanwhile, the combustion gas self-closing valve which has a remote closing function in case of flexible pipe shedding or slight leakage solves the problems that a conventional combustion gas self-closing valve can not achieve closing in case of flexible pipe shedding or slight leakage and has a relatively bad effect, etc.
Description
Technical field
The utility model belongs to the pipeline gas valve technology field, especially relates to a kind ofly having that long-range flexible pipe comes off and the gas self-closing valve of little leakage closing function.
Background technique
In the daily life, there are some security hidden troubles when using the domestic gas pipeline.People need close the combustion gas total valve because of often going out; Or have no progeny suddenly when family expenses gas pipeline air feed and to forget throttle down because of carelessness; And after pipeline recovers air feed; Combustion gas just can be released in a large number and fill the air in indoor, has both caused the source of the gas waste, also is prone to cause gas poisoning or cause accidents such as fire, blast.In addition, in the air feed process of equipment,, press the pressure entering user of pipe network to make the gaseous-pressure severe overweight in occurring sometimes owing to reasons such as voltage-regulating system break down.Add very easily aging fracture of rubber hose of using the connection gas range, also be prone to cause combustion gas to leak and bring very big danger to the user because of long-term.Thereby, in the actual using process, can superpressure, under-voltage, the little leakage of flexible pipe appear at the family expenses pipeline gas, flexible pipe comes off and the gas self-closing valve of in time closing automatically during gas leakage is most important, and it is one of vitals indispensable on the domestic gas pipeline.
In the actual using process; Because of the long-term rubber hose that is connected between gas self-closing valve and the gas cooker suction port used fracture occurs, comes off or situation such as little dew through regular meeting, thereby guarantee that gas self-closing valve close most important in the situation ability automatic time that the little dew of flexible pipe occurs, rupture or come off.For gas self-closing valve, can when the little dew of flexible pipe occurring, rupture or coming off situation, in time close automatically also be one of important indicator of weighing the gas self-closing valve performance.
Nowadays at present; The gas self-closing valve kind that is occurred on the market is various; But during actual the use; When the family expenses pipeline gas the little leakage of flexible pipe or flexible pipe occurred and comes off, existing gas self-closing valve can only realize that all short distance closes automatically, specifically was when adorning rubber hose within manual angle valve installation place 50cm～60cm apart from place, self closing stop valve air outlet or self closing stop valve air outlet and little leakage occurs, rupture or come off; Existing gas self-closing valve could in time be closed automatically, that is to say to have only when the little leakage of flexible pipe, rupture or the position that comes off is adorned apart from self closing stop valve air outlet place or self closing stop valve air outlet and could be closed automatically when manual angle valve installation place is no more than 50cm～60cm; And when the little leakage of flexible pipe, rupture or the position that comes off when adorning manual angle valve installation place above 50cm～60cm apart from self closing stop valve air outlet place or self closing stop valve air outlet, existing gas self-closing valve then can not in time be closed automatically.Thereby when the family expenses pipeline gas the little leakage of flexible pipe or flexible pipe occurred and comes off, the safety shutdown distance of existing gas self-closing valve was to adorn within manual angle valve installation place 50cm～60cm apart from place, self closing stop valve air outlet or self closing stop valve air outlet.
According to the gas cooker installation specification; On the gas cooker admission line the gas self-closing valve of installing should be apart from the gas cooker suction port 2m; But when carrying out as installed in the reality, because of multiple reasons such as scene installation, spatial position, gas self-closing valve generally all can surpass 2m apart from the distance of gas cooker suction port; Even gas self-closing valve apart from the distance of gas cooker suction port within 2m; But gas self-closing valve all can surpass above-mentioned safety shutdown distance in most cases apart from the distance of gas cooker suction port, and gas self-closing valve seldom occurs the interior user of above-mentioned safety shutdown distance apart from the distance of gas cooker suction port.Thereby; Because in the actual life; Gas self-closing valve apart from the gas cooker suction port apart from the overwhelming majority all above above-mentioned safety shutdown distance; Correspondingly possibly occur little leakage on the rubber hose, rupture or come off the position in most cases all not in above-mentioned safety shutdown distance, therefore in fact existing gas self-closing valve does not realize really that flexible pipe comes off and little leakage closing function.
The model utility content
The utility model technical problem to be solved is to above-mentioned deficiency of the prior art; Provide a kind of and have that long-range flexible pipe comes off and the gas self-closing valve of little leakage closing function; It is simple in structure, easy to install and use, safe and reliable and using effect is good, use value is high; Have that long-range flexible pipe comes off and little leakage automatic closing function, can not really realizing of can solving effectively that existing gas self-closing valve exists practical problems such as flexible pipe comes off and little leakage closing function, using effect be relatively poor.
For solving the problems of the technologies described above; The technological scheme that the utility model adopts is: a kind of have that long-range flexible pipe comes off and the gas self-closing valve of little leakage closing function; The valve body of forming by valve gap and the valve seat make-up that has suction port and an air outlet; The corrugated rubber film of installing in the said valve body with body cavity be divided into up and down two cavitys and up and down two cavitys be respectively uuper valve chamber and lower valve chamber; Hand torsion bar lower end by in the valve gap middle part institute valve cover hole of the opening insertion uuper valve chamber is fixedly connected with the corrugated rubber film, is provided with the valve opening closing assembly that suction port is opened or closed in the said lower valve chamber, and it is characterized in that: said suction port is that opening area is 3mm
2～28.5mm
2Suction port one or the inner suction port two that is coaxially installed with the bore adjustment piece; Said bore adjustment piece is the cover piece installing that the middle part has air inlet through hole two; Said cover piece installing is fixedly mounted in the said suction port two; The external structure of said cover piece installing and size all with the internal structure and the consistent size of the said suction port two of its installed position, and the perforated area of said air inlet through hole two is 3mm
2～28.5mm
2
Simultaneously; The utility model also provides another kind of technological scheme: a kind of have that long-range flexible pipe comes off and the gas self-closing valve of little leakage closing function; The valve body of forming by valve gap and the valve seat make-up that has suction port and an air outlet; The corrugated rubber film of installing in the said valve body with body cavity be divided into up and down two cavitys and up and down two cavitys be respectively uuper valve chamber and lower valve chamber; Hand torsion bar lower end by in the valve gap middle part institute valve cover hole of the opening insertion uuper valve chamber is fixedly connected with the corrugated rubber film; Be provided with the valve opening closing assembly that suction port is opened or closed in the said lower valve chamber, it is characterized in that: be coaxially installed with flexible pipe remote auto closing assembly in said suction port or the air outlet; Said flexible pipe remote auto closing assembly comprises that the front end and back end has air inlet through hole three and the shell that goes out vent hole three; The coaxial spring two that is equipped with in the said shell; The rear end of said spring two is equipped with and in said shell, is being moved forward and backward under the drive of spring two going out blocking piece and the blocking piece that vent hole three opens or close, and it is anterior that the front end of said spring two is installed in said shell; Said shell is fixedly mounted in suction port or the air outlet, and the external structure of said shell and size all with the internal structure and the consistent size of its installed position suction port or air outlet.
Above-mentioned have that long-range flexible pipe comes off and the gas self-closing valve of little leakage closing function, and it is characterized in that: the opening area of said suction port one is 4.5mm
2～20mm
2The perforated area of said air inlet through hole two is 4.5mm
2～20mm
2
Above-mentioned have that long-range flexible pipe comes off and the gas self-closing valve of little leakage closing function, it is characterized in that: said suction port one is circular suction port one or regular polygon suction port one; Said air inlet through hole two is circular air inlet through hole two or regular polygon air inlet through hole two.
Above-mentioned have that long-range flexible pipe comes off and the gas self-closing valve of little leakage closing function, it is characterized in that: said suction port two be shaped as circle, and air inlet through hole two is circular air inlet through hole two, said cover piece installing is the ring external member.
Above-mentioned have that long-range flexible pipe comes off and the gas self-closing valve of little leakage closing function, it is characterized in that: the bore of said circular suction port one and said circular air inlet through hole two is 2.5mm～4mm.
Above-mentioned have that long-range flexible pipe comes off and the gas self-closing valve of little leakage closing function, and it is characterized in that: said shell is shell one, shell two or shell three; Said shell one is made up of front shell one and the rear portion housing one that is installed in front shell one rear side; Said front shell one communicates with rear portion housing one inside; Go out on the rear sidewall that vent hole three is laid in rear portion housing one, and air inlet through hole three is laid on the anterior sidewall of front shell one;
Said shell two is made up of main casing that has air inlet through hole three on the anterior sidewall two and the backboard that is installed in main casing two rear portions, and said main casing two rear portions have the mounting hole that supplies backboard to install, and saidly goes out vent hole three and is laid in the middle part of the backboard;
Said shell three is made up of main casing that has out vent hole three on the rear sidewall three and the front screens that are installed in said main casing three front portions; The front portion of said main casing three has the mounting hole that supplies said front screen to install, and said air inlet through hole three is laid in said front screen middle part.
Above-mentioned have that long-range flexible pipe comes off and the gas self-closing valve of little leakage closing function, and it is characterized in that: the elasticity coefficient of said spring two is 0.00008N/m～0.007N/m.
Above-mentioned have that long-range flexible pipe comes off and the gas self-closing valve of little leakage closing function, it is characterized in that: rear and front end and the two that said suction port and air outlet are laid in valve seat respectively are laid on the same straight line; Said valve opening closing assembly comprises driving mechanism, be used for the suction port closeouts of open and close suction port, be fixedly mounted on said driving mechanism upper end permanent magnet, be installed on middle part in the said lower valve chamber and be positioned at the spacing armature under the permanent magnet and be positioned at the upper armature directly over the permanent magnet; Upper armature is fixed on the corrugated rubber film and its lower end with the hand torsion bar is fixedly connected; The upper end of said driving mechanism is passed from spacing armature middle part and the corresponding through hole that supplies said driving mechanism upper end to pass that has in spacing armature middle part, and said suction port closeouts is installed in said driving mechanism lower end; Said upper armature, permanent magnet and spacing armature match, and said driving mechanism drives said suction port closeouts suction port is opened or closed under the mating reaction of upper armature, permanent magnet and spacing armature.
Above-mentioned have that long-range flexible pipe comes off and the gas self-closing valve of little leakage closing function, and it is characterized in that: said cover piece installing is made of plastics.
The utility model compared with prior art has the following advantages:
1, simple and reasonable, appearance design is elegant in appearance and install and use easy.
2, Safety performance is good, guarantees that whole valve body is in the lock state that closes.
3, reduced by a transition elbow, and correspondingly reduced by a gas leakage point, also increased simultaneously the throughput of body cavity.
4, firm in structure, fabricating cost is low and practicability is stronger, can occur closing automatically when unusual at pipeline gas pressure, guarantees the safe handling of domestic gas pipeline.
5, can realize really that flexible pipe comes off and little leakage closing function; The position that little leakage on rubber hose, possibly occur, rupture or come off is adorned in the 6m scope of manual angle valve installation place apart from self closing stop valve air outlet place or self closing stop valve air outlet and all can be realized closing automatically, thereby has increased substantially the safety shutdown distance of gas self-closing valve.
In sum; The utility model is simple in structure, easy to install and use, safe and reliable and using effect is good, use value is high; Have that long-range flexible pipe comes off and little leakage automatic closing function, can not really realizing of can solving effectively that existing gas self-closing valve exists practical problems such as flexible pipe comes off and little leakage closing function, using effect be relatively poor.
Through accompanying drawing and embodiment, the technological scheme of the utility model is done further detailed description below.
Description of drawings
Fig. 1 is the internal structure schematic representation of first kind of embodiment of the utility model.
Fig. 2 by in first kind of embodiment of the utility model the structural representation of employing valve seat.
Fig. 3 is the internal structure schematic representation of second kind of embodiment of the utility model.
Fig. 4 is the internal structure schematic representation of the third embodiment of the utility model.
Fig. 5 by among Fig. 4 the structural representation of employing front shell.
Fig. 6 is the internal structure schematic representation of the 4th kind of embodiment of the utility model.
Fig. 7 is the internal structure schematic representation of the 5th kind of embodiment of the utility model.
Description of reference numerals:
The 1-valve gap; The 2-valve seat; The 3-suction port;
The 4-permanent magnet; The 5-upper armature; 6-corrugated rubber film;
The 7-compressing tablet; The 8-nut; The 9-spiracle;
10-hand torsion bar; 11-carries button; The green ring of 12-;
The red ring of 13-; The manual angle valve of 14-; The 16-pagoda shape interface of giving vent to anger;
The 17-air outlet; The spacing armature of 18-; 19-suction port plug;
20-11-air inlet through hole two; 20-12-ring external member; 20-21-air inlet through hole three;
20-22-goes out vent hole three; 20-23-spring two; The 20-24-blocking piece;
20-25-front shell one; 20-26-rear portion housing one; 20-27-main casing two;
The 20-28-front screen; 21-spring one; The 22-depressed part;
25-pipe thread formula air inlet connections; The 26-boss; The 27-slanted channel;
The 28-pad; 29-master control bar; 31-limit dais one;
32-locatees blocked shot; The 34-groove.
Embodiment
Like Fig. 1, shown in Figure 2; The valve body that the utility model is made up of valve gap 1 and valve seat 2 make-ups that have suction port 3 and air outlet 17; The corrugated rubber film of installing in the said valve body 6 with body cavity be divided into up and down two cavitys and up and down two cavitys be respectively uuper valve chamber and lower valve chamber; Hand torsion bar 10 lower ends of being inserted in the uuper valve chamber by valve gap 1 valve cover hole that open at the middle part are fixedly connected with corrugated rubber film 6; Be provided with the valve opening closing assembly that suction port 3 is opened or closed in the said lower valve chamber, said suction port 3 is 3mm for opening area
2～28.5mm
2Suction port one.
During actual processing and fabricating, the opening area of said suction port one can be adjusted to 4.5mm
2～20mm
2Specifically add man-hour, can be according to actual needs, the opening area of said suction port one is adjusted accordingly.
In the present embodiment, said suction port one is circular suction port one.Actually add man-hour, also can said suction port one be processed into the regular polygon suction port one that shape is a regular polygon or the suction port of other shape.
Actually add man-hour, the bore of said circular suction port one is 2.5mm～4mm.In the present embodiment, the bore of said circular suction port one is 3mm.In the concrete course of working, can be according to the concrete needs of reality, the bore of said circular suction port one is adjusted accordingly.
In the present embodiment, rear and front end and the two that said suction port 3 and air outlet 17 are laid in valve seat 2 respectively are laid on the same straight line.In the actual using process, the utility model also can be suction port 3 and air outlet 17 gas self-closing valve on same straight line not.
Said valve opening closing assembly comprises driving mechanism, be used for the suction port closeouts of open and close suction port 3, be fixedly mounted on said driving mechanism upper end permanent magnet 4, be installed on middle part in the said lower valve chamber and be positioned at the spacing armature 18 under the permanent magnet 4 and be positioned at the upper armature 5 directly over the permanent magnet 4; Upper armature 5 is fixed on the corrugated rubber film 6 and its lower end with hand torsion bar 10 is fixedly connected; The upper end of said driving mechanism is passed from spacing armature 18 middle parts and spacing armature 18 middle part correspondences have the through hole that supplies said driving mechanism upper end to pass, and said suction port closeouts is installed in said driving mechanism lower end; Said upper armature 5, permanent magnet 4 and spacing armature 18 match, and said driving mechanism drives said suction port closeouts suction port 3 is opened or closed under the mating reaction of upper armature 5, permanent magnet 4 and spacing armature 18.
In the present embodiment, fix through bolt between valve gap 1 and the valve seat 2, valve gap 1 all has bolt mounting holes with valve seat 2 edges; Valve seat 2 rear and front ends have suction port 3 and air outlet 17 respectively, and suction port 3 is circumscribed with an orthohexagonal pipe thread formula air inlet connections 25, and pipe thread formula air inlet connections 25 is made as one with valve seat 2, and the two forms air intake passage.In addition, air outlet 17 is circumscribed with manual angle valve 14, and joins with the rubber hose of gas range through the pagoda shape that its outer end the is provided with interface 16 of giving vent to anger.Also be provided with two spiracles 9 on the valve gap 1, and two spiracles 9 are and are symmetrical set.
In the present embodiment, said hand torsion bar 10 is made as one with the upper armature 5 of its lower end, and corrugated rubber film 6 is fixed on upper armature 5 tops through nut 8, and promptly upper armature 5 is positioned at corrugated rubber film 6 belows, and is lined with compressing tablet 7 between corrugated rubber film 6 and the nut 8.Simultaneously, hand torsion bar 10 upper ends also are equipped with and carry button 11.Said driving mechanism comprises the master control bar 29 that is laid in the said lower valve chamber and can moves up and down and the location blocked shot 32 of move left and right; Valve seat 2 bottom correspondences are provided with and supply master control bar 29 to move up and down the depressed part 22 of usefulness, and the left and right sides of valve seat 2 bottom inside and depressed part 22 is provided with limit dais 1.
In the present embodiment, said spacing armature 18 is the armature of cross section convex shape, and spacing armature 18 is installed on the limit dais 1 through screw.
Said permanent magnet 4 is laid in master control bar 29 upper ends, and spacing armature 18 is passed on master control bar 29 tops and the center is provided with slanted channel 27, and the lower end of master control bar 29 is provided with the spring 1 of the usefulness that resets.Said slanted channel 27 for the oblique groove that matches with boss 26 or open be tilted to passage.In the present embodiment, slanted channel 27 for be arranged on master control bar 29 middle parts open be tilted to passage, spacing armature 18 middle parts have the master control bar mounting hole that supplies master control bar 29 tops to pass.Said suction port closeouts is the suction port plug 19 that is laid in location blocked shot 32 front ends, and during actual the use, said suction port closeouts also can adopt other closeouts such as shrouding.Blocked shot 32 rear portions, said location are provided with the boss 26 that matches with slanted channel 27, and said suction port plug 19 is for being installed in the hemisphere type rubber plug in vertical pad 28 outsides of locating blocked shot 32 ends.Hemisphere type rubber plug on the blocked shot 32 of location.Said location blocked shot 32 is installed on the limit dais 1, and limit dais one 31 tops are provided with the groove 34 that supplies location blocked shot 32 move left and right, and said groove 34 constitutes the passage that supplies location blocked shot 32 move left and right, and location blocked shot 32 can only be along this passage move left and right.In addition, also can on blocked shot 32 right sides, location the air outlet plug that shutoff is carried out in air outlet 17 be installed according to the concrete needs of reality.
Thereby in the present embodiment, said driving mechanism is made up of master control bar 29 and location blocked shot 32.In the actual using process, driving mechanism also can adopt other types such as driving mechanism by rocker arm assembly and link assembly.
The working procedure of the utility model is: the action of master control bar 29 determines by three kinds of active forces, promptly gets into the pressure of valve inner gases in the magnetic force of the gravity of hand torsion bar 10, master control bar 29 and accessory itself thereof, permanent magnet 4 and the lower valve chamber from suction port 3.
During normal air feed; At first by artificial pull-up hand torsion bar 10 and make it expose green ring 12 positions, at this moment, upper armature 5 is in attracting state with permanent magnet 4; Master control bar 29 moves up under the effect of magnetic force, permanent magnet 4 and upper armature 5 adhesive mutually until its upper end; And in the process that master control bar 29 moves up; The boss 26 that corresponding drive matches with its slanted channel 27 moves in slanted channel 27; Be moved to the left by boss 26 corresponding drive location blocked shots 32 again; Thereby make that locating the suction port plug of being adorned on the blocked shot 32 19 is separated with suction port 3, make valve open, this moment, gas got into valve inners from suction port 3.Afterwards, open manual angle valve 14,17 external pagoda shapes are given vent to anger interface 16 to the gas range air feed through the air outlet in combustion gas this moment.
The first, when the lower valve chamber pressure inside be that suction port 3 pressure are when increasing to overpressure of gas gradually or suddenly; Corrugated rubber film 6 influence that is stressed drives upper armature 5 and moves up; Again because upper and lower displacement stroke limiting position armature 18 restrictions of the master control bar 29 of lower valve chamber inside; Thereby corrugated rubber film 6 moves up and makes upper armature 5 and the permanent magnet 4 that is fixed on master control bar 29 upper ends be separated; And because the magnetic force between the spacing armature 18 of permanent magnet 4 and its underpart makes permanent magnet 4 and the adhesive mutually of spacing armature 18, move down thereby drive master control bar 29 this moment.In like manner; In the process that master control bar 29 moves down; The boss 26 that corresponding drive matches with its slanted channel 27 moves in slanted channel 27, is moved right by boss 26 corresponding drive location blocked shots 32, thereby makes that locating the suction port plug of being adorned on the blocked shot 32 19 seals suction port 3; From suction port 3 throttle downs, guarantee that whole valve body is in the lock state that closes.
The second, when the lower valve chamber pressure inside be that suction port 3 pressure are lower than the authorized pressure value or when stopping the supple of gas or steam; Because the lower valve chamber internal gas is more weak or existence hardly to the ejection force of corrugated rubber film 6; Its active force that makes progress is less than the magnetic force between the spacing armature 18 of permanent magnet 4 and its underpart; Thereby permanent magnet 4 and the adhesive mutually of spacing armature 18 move down thereby drive master control bar 29.In like manner, drive location blocked shot 32 moves right, and makes that locating the suction port plug of being adorned on the blocked shot 32 19 seals suction port 3, from suction port 3 throttle downs, guarantees that whole valve body is in the lock state that closes, and the realization fuel gas pipeline is closed automatically.
When three, too big or flexible pipe little leakage occurs, rupture or comes off when air outlet 17 flows, because the opening area of suction port one can be adjusted to 3mm
2～28.5mm
2No matter thereby little leakage, fracture or obscission appear in flexible pipe; And the position distance that no matter little leakage occurs, rupture or come off (generally adorning in the manual angle valve 14 installation place 6m scopes) apart from 17 places, self closing stop valve air outlet or 17 of self closing stop valve air outlets; Suction port 3 moment flow all can be less than the flow of air outlet 17, and corresponding make that lower valve chamber inside makes progress to corrugated rubber film 6 moment thrust less than the magnetic force between the spacing armature 18 of permanent magnet 4 and its underpart, thereby; Permanent magnet 4 and the adhesive mutually of spacing armature 18 move down thereby drive master control bar 29.In like manner, drive location blocked shot 32 moves right, and makes that locating the suction port plug of being adorned on the blocked shot 32 19 seals suction port 3, from suction port 3 reliable throttle downs, guarantees that whole valve body is in the lock state that closes, and the realization fuel gas pipeline is closed automatically.
Under above-mentioned three kinds of abnormal conditions, after valve was closed automatically, the redness ring 13 on the hand torsion bar 10 exposed.When supply gas pressure recover normal after, need manual operation hand torsion bar 10, make permanent magnet 4 and spacing armature 18 be separated, make permanent magnet 4 and upper armature 5 adhesive mutually simultaneously, this moment valve open, the user could just use gas once more always.
In the present embodiment; Structural adjustment to existing gas self-closing valve is very little; The suction port bore that only needs to have gas self-closing valve now is arranged in the above-mentioned scope; Thereby processing and fabricating is very easy and realize convenient, but the technique effect highly significant that is reached, can be really effectively solution flexible pipe is long-range comes off and little leakage automatic closing function.
As shown in Figure 3, in the present embodiment, different with embodiment 1 is: said suction port 3 is the inner suction port two that is coaxially installed with the bore adjustment piece.
Said bore adjustment piece is the cover piece installing that the middle part has air inlet through hole two 20-11; Said cover piece installing is fixedly mounted in the said suction port two; The external structure of said cover piece installing and size all with the internal structure and the consistent size of the said suction port two of its installed position, and the perforated area of said air inlet through hole two 20-11 is 3mm
2～28.5mm
2
Actually add man-hour, the perforated area of said air inlet through hole two 20-11 can be adjusted to 4.5mm
2～20mm
2Specifically add man-hour, can be according to actual needs, the perforated area of air inlet through hole two 20-11 is adjusted accordingly.
In the present embodiment, said air inlet through hole two 20-11 are circular air inlet through hole two.Actually add man-hour, also can air inlet through hole two 20-11 be processed into the regular polygon air inlet through hole two that shape is a regular polygon or the air inlet through hole of other shape.
Actually add man-hour, the bore of said circular air inlet through hole two is 2.5mm～4mm.In the present embodiment, the bore of said circular air inlet through hole two is 3mm.In the concrete course of working, can be according to the concrete needs of reality, the bore of said circular air inlet through hole two is adjusted accordingly.
In the present embodiment, said suction port two be shaped as circle, and said cover piece installing is ring external member 20-12, thereby actual processing and fabricating is very easy.Specifically add man-hour, said ring external member 20-12 is made of plastics, thereby input cost is lower.
In the present embodiment, said ring external member 20-12 is processed by plastic materials, and its outside dimensions is identical with the internal diameter of said suction port two.
In the present embodiment, remaining part structure, annexation, working principle and the technique effect that is reached are all identical with embodiment 1.
To sum up; The technological scheme that is adopted in the present embodiment can carry out fully effectively utilizing to existing gas self-closing valve; Reduce the wasting of resources; Only need on the suction port of existing gas self-closing valve, to install said bore adjustment piece and tackle suction port mutually and suitably extend and get final product, the technique effect highly significant that is reached, can be really effectively solution flexible pipe is long-range comes off and little leakage automatic closing function.
Like Fig. 4, shown in Figure 5, in the present embodiment, different with embodiment 1 is: be coaxially installed with flexible pipe remote auto closing assembly in the said suction port 3.
Said flexible pipe remote auto closing assembly comprises that the front end and back end has air inlet through hole three 20-21 and the shell that goes out vent hole three 20-22; Coaxial spring two 20-23 that are equipped with in the said shell; The rear end of said spring two 20-23 is equipped with and in said shell, is being moved forward and backward under the drive of spring two 20-23 going out blocking piece 20-24 and the blocking piece 20-24 that vent hole three 20-22 open or close, and it is anterior that the front end of said spring two 20-23 is installed in said shell; Said shell is fixedly mounted in suction port 3 or the air outlet 17, and the external structure of said shell and size all with the internal structure and the consistent size of its installed position suction port 3 or air outlet 17.
In the present embodiment, said shell is a shell one.Said shell one is made up of front shell one 20-25 and rear portion housing one 20-26 that is installed in front shell one 20-25 rear side; Said front shell one 20-25 and rear portion housing one 20-26 inside communicate; Go out vent hole three 20-22 and be laid on the rear sidewall of rear portion housing one 20-26, and air inlet through hole three 20-21 are laid on the anterior sidewall of front shell one 20-25.During actual the use, also can adopt the shell of other structure.
In the present embodiment, said shell one is processed by plastic materials, has a plurality of fan-shaped air inlet through hole three 20-21 on said front shell one 20-25.
In the present embodiment, said to go out vent hole three 20-22 be circular hole through hole or regular polygon through hole.During actual the use, also can the shape that go out vent hole three 20-22 be adjusted accordingly.
During actual processing and fabricating, the elasticity coefficient of said spring two 20-23 is 0.00008N/m～0.007N/m.In the present embodiment, the elasticity coefficient of said spring two 20-23 is 0.0001N/m, during actual the use, can be according to the concrete needs of reality, and the elasticity coefficient of spring two 20-23 is adjusted accordingly.When said flexible pipe remote auto closing assembly action was sealed going out vent hole three 20-22, the amount of deformation of spring two 20-23 was 2mm～4mm.
In the present embodiment, remaining part structure, annexation and working principle are all identical with embodiment 1.
During normal air feed; At first by artificial pull-up hand torsion bar 10 and make it expose green ring 12 positions, at this moment, upper armature 5 is in attracting state with permanent magnet 4; Master control bar 29 moves up under the effect of magnetic force, permanent magnet 4 and upper armature 5 adhesive mutually until its upper end; And in the process that master control bar 29 moves up; The boss 26 that corresponding drive matches with its slanted channel 27 moves in slanted channel 27; Be moved to the left by boss 26 corresponding drive location blocked shots 32 again; Thereby make that locating the suction port plug of being adorned on the blocked shot 32 19 is separated with suction port 3, make valve open, this moment, gas got into valve inners from suction port 3.Afterwards, open manual angle valve 14,17 external pagoda shapes are given vent to anger interface 16 to the gas range air feed through the air outlet in combustion gas this moment.
The first, when the lower valve chamber pressure inside be that suction port 3 pressure are when increasing to overpressure of gas gradually or suddenly; The elastic force required owing to the spring two 20-23 action of the said flexible pipe remote auto closing assemblies of adorning in the suction port 3 is very little; Gradually or suddenly increase to the moment of overpressure of gas at suction port 3 pressure; Spring two 20-23 just can move and drive blocking piece 20-24 backward and carry out shutoff to going out vent hole three 20-22; Thereby make the corrugated rubber film 6 suffered active forces that make progress less than the magnetic force between the spacing armature 18 of permanent magnet 4 and its underpart, permanent magnet 4 and the adhesive mutually of spacing armature 18 move down thereby drive master control bar 29.In like manner; In the process that master control bar 29 moves down; The boss 26 that corresponding drive matches with its slanted channel 27 moves in slanted channel 27, is moved right by boss 26 corresponding drive location blocked shots 32, thereby makes that locating the suction port plug of being adorned on the blocked shot 32 19 seals suction port 3; From suction port 3 throttle downs, guarantee that whole valve body is in the lock state that closes.
The second, when the lower valve chamber pressure inside be that suction port 3 pressure are lower than the authorized pressure value or when stopping the supple of gas or steam; Because the lower valve chamber internal gas is more weak or existence hardly to the ejection force of corrugated rubber film 6; Its active force that makes progress is less than the magnetic force between the spacing armature 18 of permanent magnet 4 and its underpart; Thereby permanent magnet 4 and the adhesive mutually of spacing armature 18 move down thereby drive master control bar 29.In like manner, drive location blocked shot 32 moves right, and makes that locating the suction port plug of being adorned on the blocked shot 32 19 seals suction port 3, from suction port 3 throttle downs, guarantees that whole valve body is in the lock state that closes, and the realization fuel gas pipeline is closed automatically.
When three, too big or flexible pipe little leakage occurs, rupture or comes off when air outlet 17 flows; The elastic force required owing to the spring two 20-23 action of the said flexible pipe remote auto closing assemblies of adorning in the suction port 3 is very little; No matter thereby little leakage, fracture or obscission appear in flexible pipe; And the position distance that no matter little leakage occurs, rupture or come off (generally adorning in the manual angle valve 14 installation place 6m scopes) apart from 17 places, self closing stop valve air outlet or 17 of self closing stop valve air outlets; The moment that 17 flows begin to increase or flexible pipe little leakage occurs, rupture or comes off in the air outlet (be embodied in suction port 3 moment flow less than the flow of air outlet 17); Spring two 20-23 just can move and drive blocking piece 20-24 backward and carry out shutoff to going out vent hole three 20-22; Thereby make the corrugated rubber film 6 suffered momentary action power that make progress less than the magnetic force between the spacing armature 18 of permanent magnet 4 and its underpart, permanent magnet 4 and the adhesive mutually of spacing armature 18 move down thereby drive master control bar 29.In like manner, drive location blocked shot 32 moves right, and makes that locating the suction port plug of being adorned on the blocked shot 32 19 seals suction port 3, from suction port 3 reliable throttle downs, guarantees that whole valve body is in the lock state that closes, and the realization fuel gas pipeline is closed automatically.
Under above-mentioned three kinds of abnormal conditions, after valve was closed automatically, the redness ring 13 on the hand torsion bar 10 exposed.When supply gas pressure recover normal after, need manual operation hand torsion bar 10, make permanent magnet 4 and spacing armature 18 be separated, make permanent magnet 4 and upper armature 5 adhesive mutually simultaneously, this moment valve open, the user could just use gas once more always.
In the present embodiment; The technological scheme that is adopted can carry out fully effectively utilizing to existing gas self-closing valve; Reduce the wasting of resources; Only need on the suction port of existing gas self-closing valve, to install said flexible pipe remote auto closing assembly and tackle suction port mutually and suitably extend and get final product, the technique effect highly significant that is reached, can be really effectively solution flexible pipe is long-range comes off and little leakage automatic closing function.
As shown in Figure 6; In the present embodiment; Different with embodiment 3 is: said shell is a shell two; Said shell two is made up of main casing two 20-27 that have air inlet through hole three 20-21 on the anterior sidewall and the backboard 20-28 that is installed in main casing two 20-27 rear portions, and said main casing two 20-27 rear portions have the mounting hole that supplies backboard 20-28 to install, and saidly goes out vent hole three 20-22 and is laid in the middle part of the backboard 20-28.During actual processing and fabricating, said main casing two 20-27 are made of plastics, and backboard 20-28 is the stainless steel metal plate, and as installed is very easy.
During actual the use; Said shell also can be shell three; Said shell three is made up of main casing that has out vent hole three 20-22 on the rear sidewall three and the front screens that are installed in said main casing three front portions; The front portion of said main casing three has the mounting hole that supplies said front screen to install, and said air inlet through hole three 20-21 are laid in said front screen middle part.
In the present embodiment, remaining part structure, annexation, working principle and the technique effect that is reached are all identical with embodiment 3.
As shown in Figure 7, in the present embodiment, different with embodiment 1 is: be coaxially installed with flexible pipe remote auto closing assembly in the said air outlet 17.
Said flexible pipe remote auto closing assembly comprises that the front end and back end has air inlet through hole three 20-21 and the shell that goes out vent hole three 20-22; Coaxial spring two 20-23 that are equipped with in the said shell; The rear end of said spring two 20-23 is equipped with and in said shell, is being moved forward and backward under the drive of spring two 20-23 going out blocking piece 20-24 and the blocking piece 20-24 that vent hole three 20-22 open or close, and it is anterior that the front end of said spring two 20-23 is installed in said shell; Said shell is fixedly mounted in suction port 3 or the air outlet 17, and the external structure of said shell and size all with the internal structure and the consistent size of its installed position suction port 3 or air outlet 17.
In the present embodiment, said shell is a shell one.Said shell one is made up of front shell one 20-25 and rear portion housing one 20-26 that is installed in front shell one 20-25 rear side; Said front shell one 20-25 and rear portion housing one 20-26 inside communicate; Go out vent hole three 20-22 and be laid on the rear sidewall of rear portion housing one 20-26, and air inlet through hole three 20-21 are laid on the anterior sidewall of front shell one 20-25.During actual the use, also can adopt the shell of other structure.
In the present embodiment, said shell one is processed by plastic materials, has a plurality of fan-shaped air inlet through hole three 20-21 on said front shell one 20-25.
In the present embodiment, said to go out vent hole three 20-22 be circular hole through hole or regular polygon through hole.During actual the use, also can the shape that go out vent hole three 20-22 be adjusted accordingly.
During actual processing and fabricating, the elasticity coefficient of said spring two 20-23 is 0.00008N/m～0.007N/m.In the present embodiment, the elasticity coefficient of said spring two 20-23 is 0.0001N/m, during actual the use, can be according to the concrete needs of reality, and the elasticity coefficient of spring two 20-23 is adjusted accordingly.
In the present embodiment, remaining part structure, annexation and working principle are all identical with embodiment 1.
During normal air feed; At first by artificial pull-up hand torsion bar 10 and make it expose green ring 12 positions, at this moment, upper armature 5 is in attracting state with permanent magnet 4; Master control bar 29 moves up under the effect of magnetic force, permanent magnet 4 and upper armature 5 adhesive mutually until its upper end; And in the process that master control bar 29 moves up; The boss 26 that corresponding drive matches with its slanted channel 27 moves in slanted channel 27; Be moved to the left by boss 26 corresponding drive location blocked shots 32 again; Thereby make that locating the suction port plug of being adorned on the blocked shot 32 19 is separated with suction port 3, make valve open, this moment, gas got into valve inners from suction port 3.Afterwards, open manual angle valve 14,17 external pagoda shapes are given vent to anger interface 16 to the gas range air feed through the air outlet in combustion gas this moment.
The first, when the lower valve chamber pressure inside be that suction port 3 pressure are when increasing to overpressure of gas gradually or suddenly; Corrugated rubber film 6 influence that is stressed drives upper armature 5 and moves up; Again because upper and lower displacement stroke limiting position armature 18 restrictions of the master control bar 29 of lower valve chamber inside; Thereby corrugated rubber film 6 moves up and makes upper armature 5 and the permanent magnet 4 that is fixed on master control bar 29 upper ends be separated; And because the magnetic force between the spacing armature 18 of permanent magnet 4 and its underpart makes permanent magnet 4 and the adhesive mutually of spacing armature 18, move down thereby drive master control bar 29 this moment.In like manner; In the process that master control bar 29 moves down; The boss 26 that corresponding drive matches with its slanted channel 27 moves in slanted channel 27, is moved right by boss 26 corresponding drive location blocked shots 32, thereby makes that locating the suction port plug of being adorned on the blocked shot 32 19 seals suction port 3; From suction port 3 throttle downs, guarantee that whole valve body is in the lock state that closes.
The second, when the lower valve chamber pressure inside be that suction port 3 pressure are lower than the authorized pressure value or when stopping the supple of gas or steam; Because the lower valve chamber internal gas is more weak or existence hardly to the ejection force of corrugated rubber film 6; Its active force that makes progress is less than the magnetic force between the spacing armature 18 of permanent magnet 4 and its underpart; Thereby permanent magnet 4 and the adhesive mutually of spacing armature 18 move down thereby drive master control bar 29.In like manner, drive location blocked shot 32 moves right, and makes that locating the suction port plug of being adorned on the blocked shot 32 19 seals suction port 3, from suction port 3 throttle downs, guarantees that whole valve body is in the lock state that closes, and the realization fuel gas pipeline is closed automatically.
When three, too big or flexible pipe little leakage occurs, rupture or comes off when air outlet 17 flows; The elastic force required owing to the spring two 20-23 action of the said flexible pipe remote auto closing assemblies of adorning in the air outlet 17 is very little; No matter thereby little leakage, fracture or obscission appear in flexible pipe; And the position distance that no matter little leakage occurs, rupture or come off (generally adorning in the manual angle valve 14 installation place 6m scopes) apart from 17 places, self closing stop valve air outlet or 17 of self closing stop valve air outlets; The moment that 17 flows begin to increase or flexible pipe little leakage occurs, rupture or comes off in the air outlet (be embodied in air outlet 17 moment flow greater than the flow of suction port 3); Spring two 20-23 just can move and drive blocking piece 20-24 backward and carry out shutoff to going out vent hole three 20-22; Thereby make the corrugated rubber film 6 suffered momentary action power that make progress less than the magnetic force between the spacing armature 18 of permanent magnet 4 and its underpart, permanent magnet 4 and the adhesive mutually of spacing armature 18 move down thereby drive master control bar 29.In like manner, drive location blocked shot 32 moves right, and makes that locating the suction port plug of being adorned on the blocked shot 32 19 seals suction port 3, from suction port 3 reliable throttle downs, guarantees that whole valve body is in the lock state that closes, and the realization fuel gas pipeline is closed automatically.
Under above-mentioned three kinds of abnormal conditions, after valve was closed automatically, the redness ring 13 on the hand torsion bar 10 exposed.When supply gas pressure recover normal after, need manual operation hand torsion bar 10, make permanent magnet 4 and spacing armature 18 be separated, make permanent magnet 4 and upper armature 5 adhesive mutually simultaneously, this moment valve open, the user could just use gas once more always.
In the present embodiment; The technological scheme that is adopted can carry out fully effectively utilizing to existing gas self-closing valve; Reduce the wasting of resources; Only need on the suction port of existing gas self-closing valve, to install said flexible pipe remote auto closing assembly and get final product, the technique effect highly significant that is reached, can be really effectively solution flexible pipe is long-range comes off and little leakage automatic closing function.
In the present embodiment; The technological scheme that is adopted can carry out fully effectively utilizing to existing gas self-closing valve; Reduce the wasting of resources; Only need on the air outlet of existing gas self-closing valve, to install said flexible pipe remote auto closing assembly and get final product, the technique effect highly significant that is reached, can be really effectively solution flexible pipe is long-range comes off and little leakage automatic closing function.
The above; It only is the preferred embodiment of the utility model; Be not that the utility model is done any restriction; Everyly any simple modification that above embodiment did, change and equivalent structure are changed, all still belong in the protection domain of the utility model technological scheme according to the utility model technical spirit.
Claims (10)
1. one kind has that long-range flexible pipe comes off and the gas self-closing valve of little leakage closing function; By valve gap (1) with have the valve body that valve seat (2) make-up of suction port (3) and air outlet (17) is formed; The corrugated rubber film of installing in the said valve body (6) with body cavity be divided into up and down two cavitys and up and down two cavitys be respectively uuper valve chamber and lower valve chamber; Inserting interior hand torsion bar (10) lower end of uuper valve chamber by valve gap (1) the middle part institute valve cover hole of opening is fixedly connected with corrugated rubber film (6); Be provided with the valve opening closing assembly that suction port (3) is opened or closed in the said lower valve chamber, it is characterized in that: said suction port (3) is 3mm for opening area
2～28.5mm
2Suction port one or the inner suction port two that is coaxially installed with the bore adjustment piece; Said bore adjustment piece is the cover piece installing that the middle part has air inlet through hole two (20-11); Said cover piece installing is fixedly mounted in the said suction port two; The external structure of said cover piece installing and size all with the internal structure and the consistent size of the said suction port two of its installed position, and the perforated area of said air inlet through hole two (20-11) is 3mm
2～28.5mm
2
2. have according to claim 1 is described that long-range flexible pipe comes off and the gas self-closing valve of little leakage closing function, it is characterized in that: the opening area of said suction port one is 4.5mm
2～20mm
2The perforated area of said air inlet through hole two (20-11) is 4.5mm
2～20mm
2
3. have according to claim 2 is described that long-range flexible pipe comes off and the gas self-closing valve of little leakage closing function, it is characterized in that: said suction port one is circular suction port one or regular polygon suction port one; Said air inlet through hole two (20-11) is circular air inlet through hole two or regular polygon air inlet through hole two.
4. have according to claim 3 is described that long-range flexible pipe comes off and the gas self-closing valve of little leakage closing function; It is characterized in that: said suction port two be shaped as circle; And air inlet through hole two (20-11) is circular air inlet through hole two, and said cover piece installing is ring external member (20-12).
5. have according to claim 3 is described that long-range flexible pipe comes off and the gas self-closing valve of little leakage closing function, it is characterized in that: the bore of said circular suction port one and said circular air inlet through hole two is 2.5mm～4mm.
6. have according to claim 1 is described that long-range flexible pipe comes off and the gas self-closing valve of little leakage closing function, it is characterized in that: said cover piece installing is made of plastics.
7. one kind has that long-range flexible pipe comes off and the gas self-closing valve of little leakage closing function; By valve gap (1) with have the valve body that valve seat (2) make-up of suction port (3) and air outlet (17) is formed; The corrugated rubber film of installing in the said valve body (6) with body cavity be divided into up and down two cavitys and up and down two cavitys be respectively uuper valve chamber and lower valve chamber; Inserting interior hand torsion bar (10) lower end of uuper valve chamber by valve gap (1) the middle part institute valve cover hole of opening is fixedly connected with corrugated rubber film (6); Be provided with the valve opening closing assembly that suction port (3) is opened or closed in the said lower valve chamber, it is characterized in that: be coaxially installed with flexible pipe remote auto closing assembly in said suction port (3) or air outlet (17); Said flexible pipe remote auto closing assembly comprises that the front end and back end has air inlet through hole three (20-21) and goes out the shell of vent hole three (20-22); The coaxial spring two (20-23) that is equipped with in the said shell; The rear end of said spring two (20-23) is equipped with and in said shell, is being moved forward and backward under the drive of spring two (20-23) going out blocking piece (20-24) and the blocking piece (20-24) that vent hole three (20-22) opens or close, and it is anterior that the front end of said spring two (20-23) is installed in said shell; Said shell is fixedly mounted in suction port (3) or air outlet (17), and the external structure of said shell and size all with the internal structure and the consistent size of its installed position suction port (3) or air outlet (17).
8. have according to claim 7 is described that long-range flexible pipe comes off and the gas self-closing valve of little leakage closing function, it is characterized in that: said shell is shell one, shell two or shell three; Said shell one is made up of front shell one (20-25) and the rear portion housing one (20-26) that is installed in front shell one (20-25) rear side; Said front shell one (20-25) and rear portion housing one (20-26) inside communicate; Go out vent hole three (20-22) and be laid on the rear sidewall of rear portion housing one (20-26), and air inlet through hole three (20-21) is laid on the anterior sidewall of front shell one (20-25);
Said shell two is made up of main casing two (20-27) that has air inlet through hole three (20-21) on the anterior sidewall and the backboard (20-28) that is installed in main casing two (20-27) rear portion; Said main casing two (20-27) rear portion has the mounting hole that supplies backboard (20-28) to install, and saidly goes out vent hole three (20-22) and is laid in backboard (20-28) middle part;
Said shell three is made up of main casing that has out vent hole three (20-22) on the rear sidewall three and the front screens that are installed in said main casing three front portions; The front portion of said main casing three has the mounting hole that supplies said front screen to install, and said air inlet through hole three (20-21) is laid in said front screen middle part.
9. have according to claim 8 is described that long-range flexible pipe comes off and the gas self-closing valve of little leakage closing function, it is characterized in that: the elasticity coefficient of said spring two (20-23) is 0.00008N/m～0.007N/m.
10. describedly have that long-range flexible pipe comes off and the gas self-closing valve of little leakage closing function according to claim 1 or 7, it is characterized in that: rear and front end and the two that said suction port (3) and air outlet (17) are laid in valve seat (2) respectively are laid on the same straight line; Said valve opening closing assembly comprises driving mechanism, be used for the suction port closeouts of open and close suction port (3), be fixedly mounted on said driving mechanism upper end permanent magnet (4), be installed on middle part in the said lower valve chamber and be positioned at the spacing armature (18) under the permanent magnet (4) and be positioned at the upper armature (5) directly over the permanent magnet (4); Upper armature (5) is fixed on the corrugated rubber film (6) and its lower end with hand torsion bar (10) is fixedly connected; The upper end of said driving mechanism is passed from spacing armature (18) middle part and the corresponding through hole that supplies said driving mechanism upper end to pass that has in spacing armature (18) middle part, and said suction port closeouts is installed in said driving mechanism lower end; Said upper armature (5), permanent magnet (4) and spacing armature (18) match, and said driving mechanism drives said suction port closeouts suction port (3) is opened or closed under the mating reaction of upper armature (5), permanent magnet (4) and spacing armature (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204817032U CN202469121U (en) | 2011-11-28 | 2011-11-28 | Combustion gas self-closing valve with remote closing function in case of flexible pipe shedding or slight leakage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204817032U CN202469121U (en) | 2011-11-28 | 2011-11-28 | Combustion gas self-closing valve with remote closing function in case of flexible pipe shedding or slight leakage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202469121U true CN202469121U (en) | 2012-10-03 |
Family
ID=46917280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204817032U Expired - Lifetime CN202469121U (en) | 2011-11-28 | 2011-11-28 | Combustion gas self-closing valve with remote closing function in case of flexible pipe shedding or slight leakage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202469121U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104514902A (en) * | 2013-09-26 | 2015-04-15 | 江门市尚域科技开发有限公司 | Gas valve |
-
2011
- 2011-11-28 CN CN2011204817032U patent/CN202469121U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104514902A (en) * | 2013-09-26 | 2015-04-15 | 江门市尚域科技开发有限公司 | Gas valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190306 Address after: 710699 No. 20 Renmin West Road, Lintong District, Xi'an City, Shaanxi Province Patentee after: XI'AN YOUYI GAS EQUIPMENT CO., LTD. Address before: 710048 No. 68, No. 2, Unit 10, Building 4, Dongguan Jinglongchi, Xi'an, Shaanxi Province Patentee before: Zhang Chengxiang |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121003 |