CN206175753U - Mechanical fire -proof safety valve of gravity type - Google Patents
Mechanical fire -proof safety valve of gravity type Download PDFInfo
- Publication number
- CN206175753U CN206175753U CN201620823692.4U CN201620823692U CN206175753U CN 206175753 U CN206175753 U CN 206175753U CN 201620823692 U CN201620823692 U CN 201620823692U CN 206175753 U CN206175753 U CN 206175753U
- Authority
- CN
- China
- Prior art keywords
- end cap
- left end
- hot melt
- venthole
- valve element
- 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.)
- Withdrawn - After Issue
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Abstract
The utility model provides a mechanical fire -proof safety valve of gravity type belongs to gas valve field, including case, left end lid, casing, hot melt area, iron plate, right -hand member lid and horizontal pole. Case one end is the cone, and the other end is rectangular cylinder, and the last nearly top of rectangular cylinder department opens has a circular through -hole, the outer anchor ring of left end lid is provided with fine screw thread, is provided with the venthole in the middle of the left end lid, and venthole one end sets up to circular, and the other end sets up to the toper. The cone size of case one end is littleer than the toper venthole of left end lid, the casing both ends are inside to be provided with thin tooth internal thread, and the center of one end still is provided with nest holes, the outer anchor ring of right -hand member lid is provided with fine screw thread, and the centre is provided with the inlet port. The both ends at the casing are screwed up respectively to left end lid and right -hand member lid, case one end rectangular cylinder passes the nest holes of casing, rectangular cylinder's circular through -hole inserts the horizontal pole.
Description
Technical field
This utility model is related to burnt gas valve field, is specifically the mechanical fire-proof safety valve for being related to gravity type.
Background technology
Use field of the automobile of the liquid gas storage tank for using at present or fuel gas, such as natural gas as burning combustible gas
Close, convenient generally for arrangement pipeline is typically all to be connected to flexible pipe, if after the reason such as family or self-burning of vehicle is caught fire, working as fire
Gesture is larger or personnel are not closed at the scene when can not close the valve of gas piping, and the rubber tube burning at intensity of a fire scene is disconnected
Gas leakage is caused to control after splitting, it will to cause gas to accelerate uncontrollable leakage burning, air accumulator or liquefied gas
Bottle can possibly even occur the danger exploded, and consequence will be hardly imaginable.So, if without personnel or people can 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 burnt from playing the role of huge, while can reduce or avoid the injury of personal property, therefore has more significantly
Marketing prospect of the application.
The characteristics of safety devices against fires such as existing relief valve are usually equipped with the complex structures such as sealing ring, spring, uses into
This height, it is not safe enough, easily melt in high temperature environments especially with rubber seal or burn and cause relief valve
Lose safe fire prevention anti-leak effect, and spring then can failing makes valve to keep due to extraneous fire or high temperature
In the state of a compression.And due to self reason failure or using once after cannot use, what is used is relatively costly.
Authorization Notice No. discloses a kind of fire-proof safety valve for being automatically switched off pipeline, valve for the patent of CN200965085Y
Core one end compression spring, the other end is supported with hot melt part, and after hot melt part is heated thawing, valve element is ejected blocking outlet by spring
Hole, reaches the effect for being automatically switched off pipeline.Because hot melt part is not arranged in breather, when occurring on fire in breather,
Valve body heat conduction is needed, hot melt part is imparted heat to, hot melt part melts words can just carry out closing pipeline, when this usually needs certain
Between, therefore effect is bad.Due to pipeline it is on fire when, fire spreading can quickly, a kind of therefore above-mentioned pipeline that is automatically switched off
Fire safety valve performance is bad, it is impossible to play good fireproof effect.It is additionally, since spring and is in compressive state for a long time, very
It is possible to follow the string, or elasticity dies down, so that fire-proof safety valve is automatically switched off the degradation of pipeline or can not be automatic
Close.
Application publication number discloses fire-proof safety valve for the patent of CN102537457A, valve body, switch valve, thimble, joint,
Spring, steel ball, spring and "○" type sealing ring are constituted, and it has following not foot point：First, using joint as burning, due to
Joint thickness is larger, and needing to absorb substantial amounts of heat to melt, and its record is just to be automatically switched off passage after burning, therefore
Need the response time grown very much；Second, using sealing ring as sealing device, it is usually to make that those skilled in the art both know about sealing ring
With rubber make, used rubber seal easily in high temperature environments melt or burn and so that relief valve lose it is safe
Fire prevention anti-leak effect, and due to self reason failure or using once after cannot use, what is used is relatively costly；Its
Three, using spring as the vitals for closing pipeline, because spring is in for a long time compressive state, it is more likely that bullet can be lost
Property, or elasticity dies down, so that fire-proof safety valve is automatically switched off the degradation of pipeline or can not be automatically switched off.
Utility model content
For the deficiency that above-mentioned prior art is present, this utility model provides the mechanical fire-proof safety valve of gravity type.
This utility model solves the above problems by the following technical programs：
The mechanical fire-proof safety valve of gravity type, including valve element, left end cap, housing, hot melt strip, iron block, right end cap and cross bar；
Valve element one end is cone, and the other end is rectangle cylinder, and proximal portion is provided with a circle and leads on rectangle cylinder
Hole；Left end cap outer ring surface is provided with fine thread, and left end cap middle setting has venthole, and venthole one end is provided in round, separately
One end is set to taper；The cone size of valve element one end is less than the taper venthole of left end cap；Housing two ends are internally provided with carefully
Tooth female thread, the center of one end is additionally provided with nested hole；Right end cap outer ring surface is provided with fine thread, and middle setting has air inlet
Hole；
Left end cap and right end cap are tightened in respectively the two ends of housing；Nesting of valve element one end rectangle cylinder through housing
Hole；The manhole insertion cross bar of rectangle cylinder；Cross bar two ends are tied with hot melt strip, and the hot melt strip other end connects with right end cap
Connect；Rectangle cylinder top connects iron block；Valve core cone end is containing being enclosed within the venthole of left end cap.
In such scheme, preferably hot melt strip is vinyon band.
In such scheme, preferably to be set to minor diameter cylindrical for left end cap gas outlet front end, with the cylindrical connection of minor diameter
It is square structure that place is set to larger step.
In such scheme, preferably to be set to minor diameter cylindrical for right end cap air inlet front end, with the cylindrical connection of minor diameter
It is square structure that place is set to larger step.
In such scheme, preferably right end cap is internally provided with two ring for fixings, two ring for fixings and is connected with hot melt strip.
In such scheme, the big 3-6mm of external diameter of nested boring ratio valve element (1) the rectangle cylinder preferably on housing.
Advantage of the present utility model is with effect：
1st, this utility model is by being arranged on hot melt strip in breather, so that when there is fire accident, heating
Band can very first time induction heat and fuse, the response time is fast, can quick closure trachea soon, with existing fire-proof safety valve
Compare with better flameproof effect；
2nd, further, this utility model easily will not in high temperature environments be melted without caulking gum due to rubber seal
Change or burn and cause relief valve to lose safe fire prevention anti-leak effect；
3rd, this utility model compared with existing spring with more preferable effect, because spring is in for a long time compressive state,
It is likely to follow the string, or elasticity dies down, so that fire-proof safety valve is automatically switched off the degradation of pipeline or be unable to oneself
It is dynamic to close, and the gravity of iron block is realized being automatically switched off used in this utility model, with more preferable effect；
4th, this utility model does not occur under more serious actual effect and breakage in iron block and entirety, due to itself original
Because failure or using once after only need the hot melt strip for changing a low cost just can reuse, the cost for using is relatively low.
Description of the drawings
Fig. 1 is the structural representation of this utility model normal ventilation；
Fig. 2 is the structural representation that this utility model closes pipeline.
Label in figure：1 valve element, 2 left end caps, 3 housings, 4 hot melt strip, 5 iron blocks, 6 right end caps, 7 cross bars.
Specific embodiment
With reference to embodiments the utility model is described in further detail.
The mechanical fire-proof safety valve of gravity type, as shown in figure 1, including valve element 1, left end cap 2, housing 3, hot melt strip 4, iron block
5th, right end cap 6 and cross bar 7.For the safety for improving relief valve and being used for multiple times property, valve element 1, left end cap 2, housing 3, iron block
5th, right end cap 6 and cross bar 7 are made using metal material, and hot melt strip 4 is made up of the instant material of heat, preferably makes in this incidence of criminal offenses
Use vinyon band.
The two ends of housing 3 are internally provided with closely-pitched female thread, and the center of one end is additionally provided with nested hole.Housing 3 for square or
Cylinder, it is circle that two ends are internally provided with the inwall of closely-pitched female thread, as shown in Figure 1.
The outer ring surface of left end cap 2 is provided with fine thread, and the middle setting of left end cap 2 has venthole, and venthole one end is set to
Circle, the other end is set to taper.It is cylindrical that the gas outlet front end of left end cap 2 is set to minor diameter, sets with the cylindrical junction of minor diameter
It is square structure to be set to larger step, and minor diameter is cylindrical for connecing external hose.Left end cap 2 is tightened in shell by fine thread
Body 3 is provided with the closely-pitched female thread of nested nose end so as to form sealing.Can also be in the anti-fistulae of the attached last layer of closely-pitched female thread
Road thread seal tape so as to sealing further ensured.Can using adjustable wrench twist square structure so as to
Right end cap 6 is tightened on housing 3, as shown in Figure 1.
The outer ring surface of right end cap 6 is provided with fine thread, and middle setting has air inlet.Right end cap 6 is tightened by fine thread
On the other end closely-pitched female thread of housing 3, sealing is formed.It is cylindrical that the air inlet front end of right end cap 6 is set to minor diameter, straight with little
It is square structure that the cylindrical junction in footpath is set to larger step.Can also be in the attached last layer leakproof pipeline thread of closely-pitched female thread
Band so as to sealing further ensured.Using adjustable wrench square structure can be twisted so as to right end cap 6
It is tightened on housing 3, as shown in Figure 1.
The one end of valve element 1 is cone, and the other end is rectangle cylinder, and close top end is provided with a circle on rectangle cylinder
Through hole, is provided with female thread in manhole.Nested hole of one end rectangle cylinder of valve element 1 through housing 3.The interposition of cross bar 7
Install and be equipped with screw thread, the manhole insertion cross bar 7 of rectangle cylinder, and by the screw thread on cross bar 7 and manhole
Female thread is tightened, and when user needs dismounting, can directly pull down cross bar 7.The two ends of cross bar 7 are tied with hot melt strip 4, hot melt
4 other ends of band are connected with right end cap 6, rectangle cylinder top connection iron block 5.The cone segments of valve element 1 are containing the circle for being enclosed within left end cap 2
In venthole.After hot melt strip 4 disconnects, iron block 5 can fit snugly in the cone of valve element 1 cone of left end cap 2 due to action of gravity
The gas outlet of shape goes out, and is sealed with air-flow, reaches the effect for being automatically switched off pipeline.Nested boring ratio valve element 1 on housing 3 is grown
The big 3-6mm of external diameter of square cylinder, can prevent housing to be heated stuck valve element cylinder and cannot move.The cone of the one end of valve element 1
Size is less than the taper venthole of left end cap 2, as shown in Figure 1.
Because this utility model uses gravity type to be automatically switched off pipeline valve, therefore must be vertical when installing and using
Place, as shown in Figure 1.Left end cap 2 is towards down so that right end cap 6 is located at top.
When hot melt strip 4 is heated less than 100 degree, i.e., there is no fire or during by high temperature, the intact interference of hot melt strip 4 is matched somebody with somebody
Close and be arranged on cross bar 7, valve element conical section disconnects with the conical seat of end cap and contacting, 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, iron block 5 valve element by action of gravity due to being moved down handle
Valve seat is blocked, and such that it is able to prevent the leakage of gas, cuts off burning things which may cause a fire disaster, as shown in Figure 2.
Below the preferred embodiment to this utility model creation is illustrated, but this utility model is not limited to
Embodiment, those of ordinary skill in the art can also make a variety of on the premise of without prejudice to this utility model creative spirit
The modification of equivalent or replacement, the modification of these equivalents or replacement are all contained in scope of the present application.
Claims (4)
1. the mechanical fire-proof safety valve of gravity type, it is characterised in that：Including valve element (1), left end cap (2), housing (3), hot melt strip
(4), iron block (5), right end cap (6) and cross bar (7)；
Valve element (1) one end is cone, and the other end is rectangle cylinder, and proximal portion is provided with a circle and leads on rectangle cylinder
Hole；Left end cap (2) outer ring surface is provided with fine thread, and left end cap (2) middle setting has venthole, and venthole one end is set to circle
Shape, the other end is set to taper；The cone size of valve element (1) one end is less than the taper venthole of left end cap (2)；Housing (3) two
End is internally provided with closely-pitched female 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
Stricture of vagina, middle setting has air inlet；
Left end cap (2) and right end cap (6) are tightened in respectively the two ends of housing (3)；Valve element (1) one end rectangle cylinder passes through housing
(3) nested hole；Manhole insertion cross bar (7) of rectangle cylinder；Cross bar (7) two ends are tied with hot melt strip (4), hot melt strip
(4) other end is connected with right end cap (6)；Rectangle cylinder top is connected with iron block (5)；Valve element (1) cone segments are containing being enclosed within left end
In the venthole of lid (2)；
It is cylindrical that right end cap (6) the air inlet front end is set to minor diameter, and with the cylindrical junction of minor diameter larger step is set to
For square structure；
The right end cap (6) is internally provided with two ring for fixings, and two ring for fixings are connected with hot melt strip (4).
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：Left end cap (2) outlet
Mouthful front end is set to that minor diameter is cylindrical, and it is square structure to be set to larger step with the cylindrical junction of minor diameter.
4. the mechanical fire-proof safety valve of gravity type according to claim 1, it is characterised in that：It is embedding on the housing (3)
The big 3-6mm of external diameter of set boring ratio valve element (1) rectangle cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620823692.4U CN206175753U (en) | 2016-07-29 | 2016-07-29 | Mechanical fire -proof safety valve of gravity type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620823692.4U CN206175753U (en) | 2016-07-29 | 2016-07-29 | Mechanical fire -proof safety valve of gravity type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206175753U true CN206175753U (en) | 2017-05-17 |
Family
ID=58674232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620823692.4U Withdrawn - After Issue CN206175753U (en) | 2016-07-29 | 2016-07-29 | Mechanical fire -proof safety valve of gravity type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206175753U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105972281A (en) * | 2016-07-29 | 2016-09-28 | 钦州学院 | Gravity-type mechanical fireproof safety valve |
-
2016
- 2016-07-29 CN CN201620823692.4U patent/CN206175753U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105972281A (en) * | 2016-07-29 | 2016-09-28 | 钦州学院 | Gravity-type mechanical fireproof safety valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170517 Effective date of abandoning: 20180828 |
|
| AV01 | Patent right actively abandoned |