CN108980430A - Overcurrent stop valve - Google Patents
Overcurrent stop valve Download PDFInfo
- Publication number
- CN108980430A CN108980430A CN201810787789.8A CN201810787789A CN108980430A CN 108980430 A CN108980430 A CN 108980430A CN 201810787789 A CN201810787789 A CN 201810787789A CN 108980430 A CN108980430 A CN 108980430A
- Authority
- CN
- China
- Prior art keywords
- air inlet
- spool
- stop valve
- retainer
- spring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 21
- 239000010959 steel Substances 0.000 claims abstract description 21
- 238000007789 sealing Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 39
- 239000000567 combustion gas Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000009740 moulding (composite fabrication) Methods 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
- F16K17/22—Excess-flow valves actuated by the difference of pressure between two places in the flow line
- F16K17/24—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member
- F16K17/28—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only
- F16K17/30—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only spring-loaded
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D7/00—Control of flow
- G05D7/01—Control of flow without auxiliary power
- G05D7/0106—Control of flow without auxiliary power the sensing element being a flexible member, e.g. bellows, diaphragm, capsule
- G05D7/0113—Control of flow without auxiliary power the sensing element being a flexible member, e.g. bellows, diaphragm, capsule the sensing element acting as a valve
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D7/00—Control of flow
- G05D7/01—Control of flow without auxiliary power
- G05D7/0126—Control of flow without auxiliary power the sensing element being a piston or plunger associated with one or more springs
- G05D7/0133—Control of flow without auxiliary power the sensing element being a piston or plunger associated with one or more springs within the flow-path
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Valve Housings (AREA)
Abstract
The invention discloses a kind of overcurrent stop valves, including valve body and cutting assembly, valve body includes air inlet flange, the retainer being detachably connected with air inlet flange, the gas outlet support frame being detachably connected with retainer, cutting assembly is mounted in valve body, cutting assembly includes release spring, steel ball, spool and reset spring, spool includes sequentially connected guiding upper plug head, flap and guiding lower end cap, reset spring is nested on guiding lower end cap, so that reset spring one end is resisted against on flap, the other end of reset spring is resisted against on the support frame of gas outlet, air inlet flange is provided with the spring eye for placing release spring and steel ball far from retainer side, release spring is placed with steel ball by one end of spool, release spring is by steel ball overhead on the surface of guiding upper plug head；It by cutting assembly, realizes that stop valve can be automatically closed in overcurrent, when flow is normal, restores manually, ensure that safety gas.
Description
Technical field
The present invention relates to a kind of disconnecting devices, and in particular to arrives a kind of overcurrent disconnecting device.
Background technique
As people increasingly focus on environmental protection, combustion gas generally uses in family life, because combustion gas is excessive or for air pressure
Power jump over-voltage cause with gas gauge table explode and cause fire incident happen occasionally, this not only makes the property of family by huge
It loses greatly and the life security of people is made also to receive great threat.The reason of causing gas fires accident is in addition to using not
Specification is outer, and it is also an important reason that automatic cutting off device is not provided on existing steam line, especially because air supply pipe
Road flow, which jumps, excessively high causes fire incident caused by poisoning caused by combustion gas overflow or explosion.
Summary of the invention
The technical problem to be solved by the present invention is to provide a kind of valves that overcurrent is automatically cut off.
The technical solution adopted by the present invention to solve the technical problems is: overcurrent stop valve, including valve body and cutting assembly,
The valve body includes air inlet flange, the retainer being detachably connected with air inlet flange, goes out with what retainer was detachably connected
Port support frame, the cutting assembly are mounted in valve body, and the cutting assembly includes release spring, steel ball, spool and reset
Spring, the spool include sequentially connected guiding upper plug head, flap and guiding lower end cap, and the reset spring, which is nested with, to be oriented to
On lower end cap, so that reset spring one end is resisted against on flap, the other end of reset spring is resisted against on the support frame of gas outlet, institute
It states air inlet flange and retainer side is provided with spring eye for placing release spring and steel ball, the release spring is leaned on
One end of spool is placed with steel ball, and the release spring is by steel ball overhead on the surface of guiding upper plug head.
Further, the spool is an integral structure.
Further, the shape of the flap is hemispherical or sheet, the opening of the hemispherical flap is towards air inlet
Mouth flange direction.
Further, the air inlet flange is provided with air inlet, the gas outlet support frame is provided with gas outlet.
Further, the detachable connection is to be threadedly coupled or be interference fitted.
Further, the contact surface of the guiding upper plug head and steel ball is bevel structure.
Further, the outer surface of the retainer is provided with seal groove, sealing is provided in the seal groove
Circle.
Further, the air inlet flange, retainer, gas outlet support frame and spool material be plastics or gold
Belong to.
Further, the air inlet flange, retainer, gas outlet support frame and spool shaft centre line in a line
On.
Further, at least provided with 2 vertically hung scrolls on the gas outlet support frame.
The beneficial effects of the present invention are: overcurrent stop valve is small in size, structure is simple, by simplifying cutting assembly, realization is cut
Disconnected valve can be automatically closed in overcurrent, when flow is normal, restore manually；It can integrally combine with globe valve as before table when using
Control valve uses, and can automatically cut off when excessive combustion gas or over-voltage gas supply occur for pipeline, ensure that with gas safety.
Detailed description of the invention
Fig. 1 is stop valve top view；
Fig. 2 is A-A cross-sectional view；
Fig. 3 is C-C cross-sectional view；
Fig. 4 is top view when stop valve is cut off；
Fig. 5 is B-B cross-sectional view；
Fig. 6 is valve core structure schematic diagram；
Fig. 7 is retainer structural schematic diagram；
Fig. 8 is gas outlet support frame structure diagram；
Fig. 9 is air inlet flange arrangement schematic diagram.
In the figure, it is marked as gas outlet support frame 1, retainer 2, sealing ring 3, air inlet flange 4, release spring 5, spring eye
6, steel ball 7, spool 8, guiding upper plug head 81, guiding lower end cap 82, flap 83, chamfering 9, reset spring 10, gas outlet 11, air inlet
Mouth 12, vertically hung scroll 13.
Specific embodiment
The present invention is further described with reference to the accompanying drawings and detailed description.
Embodiment one
As Fig. 2, Fig. 3 and overcurrent stop valve shown in fig. 5, including valve body and cutting assembly, cutting assembly are mounted on valve body
Interior, the valve body includes the retainer 2 of the air inlet flange 4 that gas enters and the interference fit installation of air inlet flange 4 and protects
The gas outlet support frame 1 of the interference fit installation of frame 2 is held, the cutting assembly includes release spring 5, steel ball 7, spool 8 and makes valve
The reset spring 10 that core 8 resets after cutting off gas, as shown in fig. 6, the spool 8 includes sequentially connected guiding upper plug head
81, flap 83 and guiding lower end cap 82, the spool 8 are an integral structure, and stronger structure is not in fracture, the flap
83 shape is hemispherical, is open towards the direction of air inlet flange 4, and the reset spring 10 is nested in guiding lower end cap 82
On, so that 10 one end of reset spring is resisted against on flap 83, the other end of reset spring 10 is resisted against on gas outlet support frame 1；
As shown in Fig. 2, the air inlet flange 4 is provided with the spring for placing release spring 5 and steel ball 7 far from 2 side of retainer
Hole 6, the release spring 5 are placed with steel ball 7 by one end of spool 8, and the release spring 5 blocks up 7 overhead of steel ball in guiding
The contact surface of first 81 surface, the guiding upper plug head 81 and steel ball 7 is bevel structure, convenient for resisting spool 8 and playing reset
Effect, the internal diameter of the air inlet flange 4 are greater than the internal diameter of the retainer 2；It is protected as shown in figure 5, the diameter of flap 83 is greater than
The internal diameter for holding frame 2 is less than the minimum diameter of air inlet flange 4.
As shown in Figure 3 and Figure 9, air inlet flange 4 is provided with the air inlet 12 of gas entrance；As shown in figure 8, gas outlet branch
Support 1 is provided with gas outlet 11, as shown in Fig. 2, the outer surface of retainer 2 is provided with seal groove, is provided in seal groove
Sealing ring 3, being provided with 3 sealing effect of sealing ring can be more preferable.
As shown in figure 8, at least provided with 2 vertically hung scrolls 13 on the gas outlet support frame 1, using 3 in the present embodiment
A vertically hung scroll 13 is evenly distributed on gas outlet support frame 1, and setting so had both been able to maintain gas outlet support frame 1 deformation occurs and is same
When to be able to maintain gas outlet 11 again sufficiently large；Air inlet flange 4, retainer 2, gas outlet support frame 1 and spool 8 material be
Plastics or metal, using injection molding or casting and forming；Air inlet flange 4, retainer 2, gas outlet support frame 1 and spool 8
Shaft centre line on one wire；Overcurrent cutting valve arrangement is simple, and air inlet is automatically closed when realizing overcurrent by cutting assembly, protects
It has demonstrate,proved with gas safety, while using two sides guiding setting, regardless of excessive much, spool 8 will not shift in valve body, valve
Valve 83 is designed to hemispherical, and sealing effect is more preferable.
In use, assuming that the overcurrent flow value of overcurrent stop valve is set as 1 cubic metre per hour, when the flow value of gas is low
Per hour in 1 cubic metre, gas enters in valve body from air inlet 12, successively passes through air inlet flange 4, retainer 2 and gas outlet
Support frame 1 is smoothly discharged from the gas outlet of gas outlet support frame 1 11；When the flow value of gas is more than 1 cubic metre, gas from
Air inlet 12 enters, per hour more than 1 cubic metre of the overcurrent flow value set due to flow, into the hemispherical interior gas of flap 83
Know from experience and push spool 8 mobile to 1 direction of gas outlet support frame, reset spring 10 acts on the power on spool 8 less than gas flow 1
Cubic meter acts on power on flap 83 per hour, until flap 83 and the chamfering 9 on retainer 2 are tangent, meanwhile, positioned at spring
Release spring 5 in hole 6 pushes up steel ball 7 to 8 direction of spool, keeps the sealing function of flap 83 and retainer 2, makes combustion gas can not
Pass through；After danger excludes, guiding lower end cap 82 is pressed to 4 direction of air inlet flange manually, reset spring 10, which plays, makes spool 8
Reset response.
Embodiment two
The present embodiment is identical as the working principle of embodiment one, and difference is: 83 shape of flap of the spool 8 is sheet
Shape, retainer 2 is threadedly coupled with air inlet flange 4, gas outlet support frame 1 is threadedly coupled with retainer 2.
Embodiment three
The present embodiment is identical as the working principle of embodiment one, and difference is: retainer 2 and gas outlet support frame 1 use
Integral structure, is connected through a screw thread or is interference fitted and connect with air inlet flange 4.
Particular embodiments described above has carried out further in detail the purpose of the present invention, technical scheme and beneficial effects
It describes in detail bright, it should be understood that the above is only a specific embodiment of the present invention, is not intended to restrict the invention, it is all
Within the spirit and principles in the present invention, any modification, equivalent substitution, improvement and etc. done should be included in guarantor of the invention
Within the scope of shield.
Claims (10)
1. overcurrent stop valve, it is characterised in that: including valve body and cutting assembly, the valve body include air inlet flange (4), with into
The retainer (2) that port flange (4) is detachably connected and the gas outlet support frame (1) that retainer (2) are detachably connected, it is described
Cutting assembly is mounted in valve body, and the cutting assembly includes release spring (5), steel ball (7), spool (8) and reset spring
(10), the spool (8) includes sequentially connected guiding upper plug head (81), flap (83) and is oriented to lower end cap (82), described multiple
Position spring (10) is nested in guiding lower end cap (82), so that reset spring (10) one end is resisted against on flap (83), resets bullet
The other end of spring (10) is resisted against on gas outlet (11) support frame (1), and the air inlet flange (4) is far from retainer (2) side
It is provided with the spring eye (6) for placing release spring (5) and steel ball (7), the release spring (5) leans on the one end of spool (8)
It is placed with steel ball (7), the release spring (5) is by steel ball (7) overhead on the surface of guiding upper plug head (81).
2. overcurrent stop valve as described in claim 1, it is characterised in that: the spool (8) is an integral structure.
3. overcurrent stop valve as described in claim 1, it is characterised in that: the shape of the flap (83) is hemispherical or piece
Shape, the opening of the hemispherical flap (83) is towards air inlet flange (4) direction.
4. overcurrent stop valve as described in claim 1, it is characterised in that: the air inlet flange (4) is provided with air inlet
(12), the gas outlet support frame (1) is provided with gas outlet (11).
5. overcurrent stop valve as described in claim 1, it is characterised in that: the detachable connection is threaded connection or mistake
It is full of cooperation.
6. overcurrent stop valve as described in claim 1, it is characterised in that: guiding upper plug head (81) connects with steel ball (7)
Contacting surface is bevel structure.
7. overcurrent stop valve as described in claim 1, it is characterised in that: the outer surface of the retainer (2) is provided with sealing
Ring recess is provided with sealing ring (3) in the seal groove.
8. overcurrent stop valve as described in claim 1, it is characterised in that: the air inlet flange (4), retainer (2), outlet
The material of mouth support frame (1) and spool (8) is plastics or metal.
9. overcurrent stop valve as described in claim 1, it is characterised in that: the air inlet flange (4), retainer (2), outlet
The shaft centre line of mouth support frame (1) and spool (8) is on one wire.
10. overcurrent stop valve as described in claim 1, it is characterised in that: on the gas outlet support frame (1) at least provided with
2 vertically hung scrolls (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810787789.8A CN108980430A (en) | 2018-07-18 | 2018-07-18 | Overcurrent stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810787789.8A CN108980430A (en) | 2018-07-18 | 2018-07-18 | Overcurrent stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108980430A true CN108980430A (en) | 2018-12-11 |
Family
ID=64548393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810787789.8A Pending CN108980430A (en) | 2018-07-18 | 2018-07-18 | Overcurrent stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108980430A (en) |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH056269U (en) * | 1991-07-08 | 1993-01-29 | 東京瓦斯株式会社 | Overflow prevention valve |
| KR960700427A (en) * | 1993-01-09 | 1996-01-20 | 래리 시이 코스켈라 | SAFETY SHUT-OFF GAS LINES |
| CN2299971Y (en) * | 1997-05-15 | 1998-12-09 | 冯金生 | Overflow gas safety automatic cut-off valve |
| US20040031524A1 (en) * | 2000-09-06 | 2004-02-19 | Klaus Schulze | Gas flow monitoring device |
| KR20070045456A (en) * | 2005-10-27 | 2007-05-02 | 휴콘스 테크놀러지 주식회사 | A low pressure lpg regulator with self-closing function |
| DE102008018122A1 (en) * | 2008-04-09 | 2009-11-26 | Viega Gmbh & Co. Kg | flow Switch |
| CN201363450Y (en) * | 2009-02-26 | 2009-12-16 | 玉环县昌联阀业有限公司 | Fuel gas safety valve |
| CN103322257A (en) * | 2013-07-10 | 2013-09-25 | 玉环燃具实业有限公司 | Protection device of fuel gas valve |
| JP2015010694A (en) * | 2013-07-01 | 2015-01-19 | リンナイ株式会社 | Fluid proportional valve |
| CN205745422U (en) * | 2016-07-06 | 2016-11-30 | 宁波忻杰燃气用具实业有限公司 | Overflow cut-off ball valve before stove |
| JP2017009039A (en) * | 2015-06-23 | 2017-01-12 | 株式会社藤井合金製作所 | Gas cock |
| KR20180000251U (en) * | 2016-07-15 | 2018-01-24 | 손달식 | Built-in box Cock vortex gas shut-off valve |
| CN207161797U (en) * | 2017-08-08 | 2018-03-30 | 珠海市维那电子科技有限公司 | A kind of safety valves for gas and gas safe equipment |
| CN208687048U (en) * | 2018-07-18 | 2019-04-02 | 苏州福特曼机器人系统有限公司 | Overcurrent stop valve |
-
2018
- 2018-07-18 CN CN201810787789.8A patent/CN108980430A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH056269U (en) * | 1991-07-08 | 1993-01-29 | 東京瓦斯株式会社 | Overflow prevention valve |
| KR960700427A (en) * | 1993-01-09 | 1996-01-20 | 래리 시이 코스켈라 | SAFETY SHUT-OFF GAS LINES |
| CN2299971Y (en) * | 1997-05-15 | 1998-12-09 | 冯金生 | Overflow gas safety automatic cut-off valve |
| US20040031524A1 (en) * | 2000-09-06 | 2004-02-19 | Klaus Schulze | Gas flow monitoring device |
| KR20070045456A (en) * | 2005-10-27 | 2007-05-02 | 휴콘스 테크놀러지 주식회사 | A low pressure lpg regulator with self-closing function |
| DE102008018122A1 (en) * | 2008-04-09 | 2009-11-26 | Viega Gmbh & Co. Kg | flow Switch |
| CN201363450Y (en) * | 2009-02-26 | 2009-12-16 | 玉环县昌联阀业有限公司 | Fuel gas safety valve |
| JP2015010694A (en) * | 2013-07-01 | 2015-01-19 | リンナイ株式会社 | Fluid proportional valve |
| CN103322257A (en) * | 2013-07-10 | 2013-09-25 | 玉环燃具实业有限公司 | Protection device of fuel gas valve |
| JP2017009039A (en) * | 2015-06-23 | 2017-01-12 | 株式会社藤井合金製作所 | Gas cock |
| CN205745422U (en) * | 2016-07-06 | 2016-11-30 | 宁波忻杰燃气用具实业有限公司 | Overflow cut-off ball valve before stove |
| KR20180000251U (en) * | 2016-07-15 | 2018-01-24 | 손달식 | Built-in box Cock vortex gas shut-off valve |
| CN207161797U (en) * | 2017-08-08 | 2018-03-30 | 珠海市维那电子科技有限公司 | A kind of safety valves for gas and gas safe equipment |
| CN208687048U (en) * | 2018-07-18 | 2019-04-02 | 苏州福特曼机器人系统有限公司 | Overcurrent stop valve |
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