CN105972281B - The mechanical fire-proof safety valve of gravity type - Google Patents
The mechanical fire-proof safety valve of gravity type Download PDFInfo
- Publication number
- CN105972281B CN105972281B CN201610620361.5A CN201610620361A CN105972281B CN 105972281 B CN105972281 B CN 105972281B CN 201610620361 A CN201610620361 A CN 201610620361A CN 105972281 B CN105972281 B CN 105972281B
- Authority
- CN
- China
- Prior art keywords
- end cap
- spool
- shell
- left end
- safety valve
- 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.)
- Expired - Fee Related
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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
- F16K17/40—Safety valves; Equalising valves, e.g. pressure relief valves with a fracturing member, e.g. fracturing diaphragm, glass, fusible joint
- F16K17/406—Safety valves; Equalising valves, e.g. pressure relief valves with a fracturing member, e.g. fracturing diaphragm, glass, fusible joint the fracturing member being a generally elongated member, e.g. rod or wire, which is directly connected to a movable valve member, the breaking or buckling of the elongated member allowing the valve member to move to a closed or open position
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
Abstract
The present invention provides the mechanical fire-proof safety valve of gravity type, belongs to burnt gas valve field, including spool, left end cap, shell, hot melt strip, iron block, right end cap and cross bar.Spool one end is cone, and the other end is rectangle cylinder, and proximal portion opens that there are one circular through holes on rectangle cylinder；Left end cap outer ring surface is provided with fine thread, and venthole is provided among left end cap, and venthole one end is provided in round, and the other end is set as taper.The cone size of spool one end is smaller than the taper venthole of left end cap；Shell both ends are internally provided with closely-pitched internal thread, and the center of one end is additionally provided with nested hole；Right end cap outer ring surface is provided with fine thread, and centre is provided with air admission hole.Left end cap and right end cap are tightened in the both ends of shell respectively；Spool one end rectangle cylinder passes through the nested hole of shell；The circular through hole of rectangle cylinder is inserted into cross bar.
Description
Technical field
The present invention relates to burnt gas valve fields, are specifically the mechanical fire-proof safety valves for being related to gravity type.
Background technology
Liquid gas storage tank or fuel gas used at present, such as the automobile of natural gas use field as burning combustible gas
It closes, convenient generally for arrangement pipeline is typically all to be connected to hose, if after the reasons such as family or self-burning of vehicle are caught fire, works as fire
Gesture is larger or personnel do not close when cannot close the valve of gas piping at the scene, and breaks in the burning of the rubber tube at intensity of a fire scene
Cause gas leakage that cannot control after splitting, it will gas is caused to accelerate uncontrollable leakage burning, air accumulator or liquefied gas
The danger that bottle can possibly even explode, consequence will be hardly imaginable.So if in no personnel or people can be needed to go in time
Automatic closing gas safety valve door in the case that gas valve and fire extinguishing are closed in operation, for gas storage such as protection liquid gas storage tanks
Bottle prevents the aggravation of burning from having huge effect, while can reduce or avoid the injury of personal property, therefore has more significantly
Marketing prospect of the application.
The safety devices against fires such as existing safety valve are usually equipped with the complicated feature such as sealing ring, spring, using at
This height, it is not safe enough, it is easy fusing under high temperature environment especially with rubber seal or burns and make safety valve
Lose safe fire prevention anti-leak effect, and spring then can due to extraneous fire or high temperature and failing makes valve cannot keep
The state compressed at one.And cannot be used due to self reason failure or after using once, the cost used is higher.
Authorization Notice No. is that the patent of CN200965085Y discloses a kind of fire-proof safety valve that pipeline is automatically closed, valve
Core one end compressed spring, the other end are supported with hot melt part, and after hot melt part is heated to be melted, spool is popped up and blocks outlet by spring
Hole achievees the effect that pipeline is automatically closed.Since hot melt part is not arranged in snorkel, when occurring on fire in snorkel,
Valve body heat conduction is needed, imparts heat to hot melt part, hot melt part, which melts words, could carry out closing pipeline, when this usually needs certain
Between, therefore effect is bad.When on fire due to pipeline, fire spreading can quickly, therefore a kind of above-mentioned pipeline that is automatically closed
Fire safety valve performance is bad, cannot play good fireproof effect.Moreover, because spring is in compressive state for a long time, very
It is possible that can follow the string or elasticity dies down, to make fire-proof safety valve be automatically closed pipeline degradation or cannot be automatic
It closes.
Application publication number is that the patent of CN102537457A discloses fire-proof safety valve, valve body, switch valve, thimble, connector,
Spring, steel ball, spring and "○" type sealing ring are constituted, it has the following deficiencies a little：First, using connector as burning, due to
Joint thickness is larger, and needing to absorb a large amount of heat could melt, and its record is that channel can just be automatically closed after burning, therefore
Need the reaction time grown very much；Second, using sealing ring as sealing device, it is usually to make that those skilled in the art, which both know about sealing ring,
It is made of rubber, it is safe so that safety valve loses of the easy fusing under high temperature environment of rubber seal or burning
Anti-leak of preventing fires effect, and cannot be used due to self reason failure or after using once, the cost used is higher；Its
Three, using spring as the important component for closing pipeline, since spring is in compressive state for a long time, it is more likely that bullet can be lost
Property or elasticity die down, to make fire-proof safety valve that the degradation of pipeline be automatically closed or cannot be automatically closed.
Invention content
In view of the deficiency of the prior art, the present invention provides the mechanical fire-proof safety valve of gravity type.
The present invention solves the above problems by the following technical programs：
The mechanical fire-proof safety valve of gravity type, including spool, left end cap, shell, hot melt strip, iron block, right end cap and cross bar；
Spool one end is cone, and the other end is rectangle cylinder, and proximal portion opens that there are one round logical on rectangle cylinder
Hole；Left end cap outer ring surface is provided with fine thread, and venthole is provided among left end cap, and venthole one end is provided in round, separately
One end is set as taper；The cone size of spool one end is smaller than the taper venthole of left end cap；Shell both ends are internally provided with carefully
The center of tooth internal thread, one end is additionally provided with nested hole；Right end cap outer ring surface is provided with fine thread, and centre is provided with air inlet
Hole；
Left end cap and right end cap are tightened in the both ends of shell respectively；Spool one end rectangle cylinder passes through the nesting of shell
Hole；The circular through hole of rectangle cylinder is inserted into cross bar；Cross bar both ends are tied with hot melt strip, and the hot melt strip other end connects with right end cap
It connects；Rectangle cylinder top connects iron block；Valve core cone end, which contains, to be sleeved in the venthole of left end cap.
In said program, preferably hot melt strip is vinyon band.
In said program, preferably left end cap gas outlet front end is set as minor diameter outer circle, is connect with minor diameter outer circle
It is rectangular structure that place, which is set as larger step,.
In said program, preferably right end cap air inlet front end is set as minor diameter outer circle, is connect with minor diameter outer circle
It is rectangular structure that place, which is set as larger step,.
In said program, preferably right end cap is internally provided with two retainer plates, two retainer plates and hot melt band connection.
In said program, the big 3-6mm of outer diameter of nested boring ratio spool (1) the rectangle cylinder preferably on shell.
Advantages of the present invention is with effect：
1, of the invention by the way that hot melt strip is arranged in snorkel, so that when there is fire accident, hot melt strip meeting
First time induction heat and fuse, the reaction time is fast, can fast quick closure tracheae, compared with existing fire-proof safety valve
With better flameproof effect；
2, further, the present invention without caulking gum, will not be easy due to rubber seal fusing under high temperature environment or
Person burns and safety valve is made to lose safe fire prevention anti-leak effect；
3, the present invention has better effect compared with existing spring, since spring is in compressive state for a long time, has very much
It may follow the string or elasticity dies down, to make fire-proof safety valve that the degradation of pipeline be automatically closed or cannot close automatically
It closes, and is automatically closed using the realization of the gravity of iron block in the present invention, there is better effect；
4, the present invention is lost under iron block and the whole actual effect and breakage more serious without generation due to self reason
Only needing to change an inexpensive hot melt strip after imitating or used once can reuse, and the cost used is relatively low.
Description of the drawings
Fig. 1 is the structural schematic diagram of normal ventilation of the present invention；
Fig. 2 is the structural schematic diagram that the present invention closes pipeline.
Figure label：1 spool, 2 left end caps, 3 shells, 4 hot melt strip, 5 iron blocks, 6 right end caps, 7 cross bars.
Specific implementation mode
The invention will be further described with reference to embodiments.
The mechanical fire-proof safety valve of gravity type, as shown in Figure 1, including spool 1, left end cap 2, shell 3, hot melt strip 4, iron block
5, right end cap 6 and cross bar 7.For the safety for improving safety valve and being used for multiple times property, spool 1, left end cap 2, shell 3, iron block
5, right end cap 6 and cross bar 7 are made using metal material, and hot melt strip 4 is made of the instant material of heat, preferably makes in this incidence of criminal offenses
With vinyon band.
3 both ends of shell are internally provided with closely-pitched internal thread, and the center of one end is additionally provided with nested hole.Shell 3 be it is rectangular or
Cylinder, the inner wall that both ends are internally provided with closely-pitched internal thread are circle, as shown in Figure 1.
2 outer ring surface of left end cap is provided with fine thread, and venthole is provided among left end cap 2, and venthole one end is set as
Circle, the other end are set as taper.2 gas outlet front end of left end cap is set as minor diameter outer circle, is set with minor diameter outer circle junction
It is rectangular structure to be set to larger step, and minor diameter outer circle is for connecing external hose.Left end cap 2 is tightened in shell by fine thread
Body 3 is provided on the closely-pitched internal thread of nested nose end, forms it into sealing.It can also be in the anti-fistulae of the attached last layer of closely-pitched internal thread
Road thread seal tape makes its leakproofness further be ensured.Can use monkey wrench twisting square structure to
Right end cap 6 is tightened on shell 3, as shown in Figure 1.
6 outer ring surface of right end cap is provided with fine thread, and centre is provided with air admission hole.Right end cap 6 is tightened by fine thread
On the other end closely-pitched internal thread of shell 3, sealing is formed.6 air inlet front end of right end cap is set as minor diameter outer circle, and small straight
It is rectangular structure that diameter outer circle junction, which is set as larger step,.It can also be in the attached last layer leakproof pipeline thread of closely-pitched internal thread
Band makes its leakproofness further be ensured.Monkey wrench twisting square structure can be used to right end cap 6
It is tightened on shell 3, as shown in Figure 1.
1 one end of spool is cone, and the other end is rectangle cylinder, opens close to top end that there are one round on rectangle cylinder
Through-hole is provided with internal thread in circular through hole.1 one end rectangle cylinder of spool passes through the nested hole of shell 3.7 interposition of cross bar
It installs and is equipped with screw thread, the circular through hole of rectangle cylinder is inserted into cross bar 7, and by the screw thread and circular through hole on cross bar 7
Internal thread is tightened, and when user needs dismounting, can directly remove cross bar 7.7 both ends of cross bar are tied with hot melt strip 4, hot melt
4 other end of band is connect with right end cap 6, and rectangle cylinder top connects iron block 5.1 cone segments of spool contain the circle for being sleeved on left end cap 2
In venthole.After the disconnection of hot melt strip 4, iron block 5 can fit snugly in 1 cone of spool the cone of left end cap 2 due to gravity
The gas outlet of shape goes out, and is sealed with air-flow, has the function that pipeline is automatically closed.Nested boring ratio spool 1 length on shell 3
The big 3-6mm of outer diameter of square cylinder can prevent shell to be heated stuck spool cylinder and can not move.The cone of 1 one end of spool
Size is smaller than the taper venthole of left end cap 2, as shown in Figure 1.
Since the present invention uses gravity type that pipeline valve is automatically closed, must be put vertically when installing and using
It sets, as shown in Figure 1.Left end cap 2 is towards downward so that right end cap 6 is located at top.
Hot melt strip 4 is heated when being no more than 100 degree, i.e., without fire occurring or when by high temperature, 4 intact interference of hot melt strip is matched
It closes and is mounted on cross bar 7, spool conical section is contacted with the disconnection of the conical seat of end cap, and gas can circulate, and arranged at safety valve is in just
Normal working condition, as shown in Figure 1.
When hot melt strip 4 is heated above 100 degree, melted by heat, spool due to being moved down handle by iron block 5 by gravity
Valve seat blocks, and so as to prevent the leakage of gas, cuts off burning things which may cause a fire disaster, as shown in Figure 2.
The preferred embodiment of the invention is illustrated above, but the present invention is not limited to embodiment,
Those skilled in the art can also make various equivalent modifications under the premise of without prejudice to the invention spirit
Or replace, these equivalent modifications or replacement are all contained in scope of the present application.
Claims (5)
1. the mechanical fire-proof safety valve of gravity type, it is characterised in that：Including spool (1), left end cap (2), shell (3), hot melt strip
(4), iron block (5), right end cap (6) and cross bar (7)；
Spool (1) one end is cone, and the other end is rectangle cylinder, and proximal portion opens that there are one round logical on rectangle cylinder
Hole；Left end cap (2) outer ring surface is provided with fine thread, is provided with venthole among left end cap (2), venthole one end is set as round
Shape, the other end are set as taper；The cone size of spool (1) one end is smaller than the taper venthole of left end cap (2)；Shell (3) two
End is internally provided with closely-pitched internal thread, and the center of one end is additionally provided with nested hole；Right end cap (6) outer ring surface is provided with closely-pitched spiral shell
Line, centre are provided with air admission hole；
Left end cap (2) and right end cap (6) are tightened in the both ends of shell (3) respectively；Spool (1) one end rectangle cylinder passes through shell
(3) nested hole；The circular through hole of rectangle cylinder is inserted into cross bar (7)；Cross bar (7) both ends are tied with hot melt strip (4), hot melt strip
(4) other end is connect with right end cap (6)；Rectangle cylinder top is connected with iron block (5)；Spool (1) cone segments, which contain, is sleeved on left end
It covers in the venthole of (2)；Left end cap (2) the gas outlet front end is set as minor diameter outer circle, is set with minor diameter outer circle junction
It is rectangular structure to be set to larger step.
2. the mechanical fire-proof safety valve of gravity type according to claim 1, it is characterised in that：The hot melt strip (4) is poly-
Vinyl plastics band.
3. the mechanical fire-proof safety valve of gravity type according to claim 1, it is characterised in that：Right end cap (6) air inlet
Mouth front end is set as minor diameter outer circle, and it is rectangular structure to be set as larger step with minor diameter outer circle junction.
4. the mechanical fire-proof safety valve of gravity type according to claim 3, it is characterised in that：The right end cap (6) is internal
There are two retainer plate, two retainer plates to be connect with hot melt strip (4) for setting.
5. the mechanical fire-proof safety valve of gravity type according to claim 1, it is characterised in that：It is embedding on the shell (3)
Cover the big 3-6mm of outer diameter of boring ratio spool (1) rectangle cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610620361.5A CN105972281B (en) | 2016-07-29 | 2016-07-29 | The mechanical fire-proof safety valve of gravity type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610620361.5A CN105972281B (en) | 2016-07-29 | 2016-07-29 | The mechanical fire-proof safety valve of gravity type |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105972281A CN105972281A (en) | 2016-09-28 |
| CN105972281B true CN105972281B (en) | 2018-08-28 |
Family
ID=56951261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610620361.5A Expired - Fee Related CN105972281B (en) | 2016-07-29 | 2016-07-29 | The mechanical fire-proof safety valve of gravity type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105972281B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106785958B (en) * | 2016-11-23 | 2018-07-27 | 江苏天正电气有限公司 | A kind of Electric Appliance Cabinet fire prevention component |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4971749A (en) * | 1972-09-30 | 1974-07-11 | ||
| CN2048924U (en) * | 1989-01-23 | 1989-12-06 | 广州市消防科学技术研究所 | Fire insulation valve for household piped gas |
| DE19532289C1 (en) * | 1995-09-01 | 1997-02-06 | Schlumberger Rombach Gmbh | Gas appliance |
| CN2510694Y (en) * | 2001-12-20 | 2002-09-11 | 刘新华 | Automatic closing valve |
| CN200965085Y (en) * | 2006-10-25 | 2007-10-24 | 阮进鹏 | Fire-proof security valve capable of automatically closing pipeline |
| CN102537457A (en) * | 2011-11-14 | 2012-07-04 | 于国威 | Fireproof safety valve |
| CN204403497U (en) * | 2014-12-25 | 2015-06-17 | 徐燕 | A kind of tempering stops valve |
| CN204985905U (en) * | 2015-08-29 | 2016-01-20 | 陈樵 | Automatic temperature -sensing valve of mechanical type |
| CN105508679B (en) * | 2015-12-31 | 2018-09-11 | 青岛埃维燃气有限公司 | A kind of automatic fireproof valve applied in combustible gas plastic conduit |
| CN205261652U (en) * | 2015-12-31 | 2016-05-25 | 界首市菁华科技信息咨询服务有限公司 | Be used in automation in pipeline valve of preventing fires |
| CN206175753U (en) * | 2016-07-29 | 2017-05-17 | 钦州学院 | Mechanical fire -proof safety valve of gravity type |
-
2016
- 2016-07-29 CN CN201610620361.5A patent/CN105972281B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN105972281A (en) | 2016-09-28 |
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Granted publication date: 20180828 Termination date: 20190729 |
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| CF01 | Termination of patent right due to non-payment of annual fee |