CN209115782U - A kind of liquefied petroleum gas cylinder valve - Google Patents
A kind of liquefied petroleum gas cylinder valve Download PDFInfo
- Publication number
- CN209115782U CN209115782U CN201821969014.4U CN201821969014U CN209115782U CN 209115782 U CN209115782 U CN 209115782U CN 201821969014 U CN201821969014 U CN 201821969014U CN 209115782 U CN209115782 U CN 209115782U
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- China
- Prior art keywords
- valve
- valve body
- pressing sleeve
- gas cylinder
- thimble
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Abstract
The utility model discloses a kind of liquefied petroleum gas cylinder valves, including valve body, the side of valve body is equipped with interface, valve assembly is installed in valve body, valve body bottom end is equipped with overfill-limiting device, top end of the valve body is fixed with pressure cap, one valve rod protrudes into valve body after passing through pressure cap, valve stem tip is equipped with handwheel, pressing sleeve is equipped in the interface, pressing sleeve inner end is equipped with sealing plain cushion and seal receptacle, and the mode being connected through a screw thread in pressing sleeve is equipped with a spool, valve core upper sleeve has the first spring, and a positioning pin is penetrated from interface side wall and connect with pressing sleeve；The pressure cap sleeving and riveting is in top end of the valve body.Thus the liquefied petroleum gas cylinder valve designed has the using effect of tamper effect and overfill-limiting device good.
Description
Technical field
The utility model relates to gas cylinder valve technical fields, are especially a kind of liquefied petroleum gas cylinder valve.
Background technique
With the development of petro chemical industry, LPG (liquefied petroleum gas) is used as a kind of chemical industry base stock and New-type fuel,
It is more and more valued by people.In terms of Chemical Manufacture, LPG passes through isolated ethylene, propylene, butylene, butadiene etc.,
For producing conjunction plastics, synthetic rubber, synthetic fibers and producing the products such as medicine, explosive, fuel.On the other hand, LPG is as combustion
Material, it is easy for operation due to its calorific value height, smoke dust, without breeze, extensively into people's lives field, in this regard, LPG
The use of container value also widely enters people's lives field, thus, the requirement to LPG valve also increasingly improves.However,
It is to determine its filling weight by weighing that the LPG container of the prior art, which is inflated, and using trouble is not quite reasonable.
To solve the above-mentioned problems, people will use valve overfill-limiting device, mainly by valve body, valve, valve rod, float and
The composition such as float lever drives valve movement with a spring when use, makes the channel on valve closing valve, although playing limit
Fill effect, but each component activity is not that very flexibly, reaction is slow when valve moves in valve, using and it is unreliable.
Moreover, its structure of the liquefied petroleum gas cylinder valve of the prior art generally comprises valve body, top end of the valve body be equipped with pressure cap and
Handwheel, valve body bottom end are equipped with overfill-limiting device, are equipped with valve assembly in valve body, the interface of the side outlet of valve body, interface and
Pressure relief device does not have tamper function, and layman is that figure convenience can repair bottle valve, safety easy to form with realizing self disassembling
Hidden danger.
Utility model content
In view of the defect of the above-mentioned prior art, the purpose of this utility model is that: providing one kind has the function of tamper and limit
Fill the good liquefied petroleum gas cylinder valve of effect.
The technical solution of the utility model is: the side of a kind of liquefied petroleum gas cylinder valve, including valve body, valve body is equipped with
Interface is equipped with valve assembly in valve body, and valve body bottom end is equipped with overfill-limiting device, and top end of the valve body is fixed with pressure cap, and a valve rod is worn
It crosses pressure cap to extend back in valve body, valve stem tip is equipped with handwheel, and pressing sleeve is equipped in the interface, and pressing sleeve inner end is equipped with sealing plain cushion
And seal receptacle, the mode being connected through a screw thread in pressing sleeve are equipped with a spool, valve core upper sleeve has the first spring, and a positioning pin is from connecing
Mouth side wall is penetrated and is connect with pressing sleeve；The pressure cap sleeving and riveting is in top end of the valve body.
Further, the side wall of the interface is equipped with through-hole, and the outer wall of pressing sleeve is equipped with the jack being connected to through-hole, fixed
Position pin is protruded into jack after through-hole and is connect with pressing sleeve.
Further, the first O-ring is equipped between the valve rod and pressure cap.
Further, the first sealing ring, spool outer end and pressing sleeve inner wall are equipped between the pressing sleeve inner end and interface inner wall
Between be equipped with the second sealing ring.
Further, the overfill-limiting device includes the outer cover for having filling channel and connecting with valve body, outer cover top side wall
It is equipped with air inlet, the piston for opening or closing filling channel is installed in the inner cavity of outer cover, second spring is cased on piston, outside
The bottom end of cover is equipped with the gland being located at below piston, and a thimble is equipped in gland, and thimble top is equipped with deformed spring, the outer cover
Bottom end the fly rod for driving thimble to move up and down is rotatably coupled by a bolt, float is installed on fly rod.
Further, the bottom end of the outer cover has pedestal, and the top of fly rod is hinged by bolt and pedestal, the fly rod
Top there is the first convex block and the second convex block, formed fluted between the first convex block and the second convex block, the first convex block is connected to
Thimble bottom end, after fly rod rotation, groove is caught in for thimble bottom end；The centre of the gland has the open-work of perforation, and thimble holds
It sets in open-work, thimble housing has the second O-ring for being closed open-work, and top and the gland of deformed spring are fixed.
Using a kind of liquefied petroleum gas cylinder valve provided by the utility model, the beneficial effect is that:
Pressure cap sleeving and riveting is in top end of the valve body so that pressure cap has the function of tamper, a positioning pin penetrated from interface side wall and with pressure
Set connection, positioning pin make pressing sleeve have the function of tamper, reduce and have even prevented layman's realizing self disassembling maintenance bottle valve
Behavior, extend the service life of bottle valve, improve the security performance of bottle valve；
Before filling, float is in hang under gravity state, and thimble is acted on by fly rod and being pushed up at this time, at filling channel
It is normally entered in bottle in opening state gas, piston is by second spring effect and the separated state of outer cover；After gas enters in bottle,
Become liquid under high pressure, when liquid level reach a certain height, float starts to float, when float floating angle reaches certain angle
When, thimble bottom end is separated with the first convex block, and thimble is moved down by the effect of deformed spring at this time, and thimble bottom end is caught in groove
In, the second O-ring is closed open-work, and internal piston is up pushed up by air pressure at this time, and sealing plain cushion contact outer cover inner wall will simultaneously fill
Gas channel is closed, and overfill-limiting device is in dissengaged positions under this state, so that limitation fills, each component activity is flexible, fast response time,
Using reliable.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is the structural schematic diagram of the utility model valve body interface position；
Fig. 3 is the structural schematic diagram of the utility model overfill-limiting device；
Fig. 4 is the connection schematic diagram of this utility model fly rod and thimble.
It is as shown in the figure: 1-valve body, 2-interfaces, 3-valve assemblies, 4-overfill-limiting devices, 5-pressure caps, 6-valve rods, 7-
Handwheel, 8-pressing sleeves, 9-sealing plain cushions, 10-seal receptacles, 11-spools, the 12-the first spring, 13-positioning pins, 14-is logical
Hole, 15-jacks, the 16-the first O-ring, the 17-the first sealing ring, the 18-the second sealing ring, 19-outer covers, 19.1-pedestals,
19.2-filling channels, 20-air inlets, 21-pistons, 22-second springs, 23-glands, 24-thimbles, 25-special-shaped bullets
Spring, 26-bolts, 27-fly rods, the 27.1-the first convex block, the 27.2-the second convex block, 27.3-grooves, 28-floats, 29-thoroughly
Hole, the 30-the second O-ring.
Specific embodiment
For it is relatively intuitive, be fully understood by the technical solution of the utility model, now just combine the progress of the utility model attached drawing
Unrestricted feature description is as follows:
As shown in Fig. 1-Fig. 4, a kind of liquefied petroleum gas cylinder valve, a kind of liquefied petroleum gas cylinder valve, including valve body 1, valve body 1
Side be equipped with interface 2, valve assembly 3 is installed in valve body 1,1 bottom end of valve body is equipped with overfill-limiting device 4, and 1 top of valve body is fixed
It is protruded into valve body 1 after thering is pressure cap 5, a valve rod 6 to pass through pressure cap 5,6 top of valve rod is equipped with handwheel 7, it is equipped with pressing sleeve 8 in interface 2,
8 inner end of pressing sleeve is equipped with sealing plain cushion 9 and seal receptacle 10, and the mode being connected through a screw thread in pressing sleeve 8 is equipped with a spool 11, spool
The first spring 12 is cased on 11, a positioning pin 13 is penetrated from 2 side wall of interface and connect with pressing sleeve 8；5 sleeving and riveting of pressure cap is pushed up in valve body 1
End.
The side wall of interface 2 is equipped with through-hole 14, and the outer wall of pressing sleeve 8 is equipped with the jack 15 being connected to through-hole 14, positioning pin
13 protrude into jack 15 after through-hole 14 and connect with pressing sleeve 8.
In order to improve the sealing effect between valve rod 6 and pressure cap 5, the first O-ring 16 is equipped between valve rod 6 and pressure cap 5.
In order to improve the sealing effect between pressing sleeve 8 and interface 2, spool 11, set between 2 inner wall of 8 inner end of pressing sleeve and interface
There is the first sealing ring 17, is equipped with the second sealing ring 18 between 8 inner wall of 11 outer end of spool and pressing sleeve.
Overfill-limiting device 4 includes the outer cover 19 for having filling channel and connecting with valve body 1, and 19 top side wall of outer cover is equipped with
Air inlet 20 is equipped with the piston 21 for opening or closing filling channel in the inner cavity of outer cover 19, is cased with second spring on piston 21
22, the bottom end of outer cover 19 is equipped with the gland 23 for being located at 21 lower section of piston, is equipped with a thimble 24 in gland 23,24 top of thimble is equipped with
The bottom end of deformed spring 25, outer cover 19 is rotatably coupled the fly rod for driving thimble 24 to move up and down by a bolt 26
27, float 28 is installed on fly rod 27.
As shown in figure 4, the bottom end of outer cover 19 has pedestal 19.1, the top of fly rod 27 is cut with scissors by bolt 26 and pedestal 19.1
It connects, the top of fly rod 27 has the first convex block 27.1 and the second convex block 27.2, between the first convex block 27.1 and the second convex block 27.2
Fluted 27.3 are formed, the first convex block 27.1 is connected to 24 bottom end of thimble, and after fly rod 27 rotates, groove is for 24 bottom end card of thimble
Enter；The centre of gland 23 has the open-work 29 of perforation, and thimble 24 is accommodated in open-work 29, and 24 housing of thimble has for being closed open-work
29 the second O-ring 30, the top of deformed spring 25 and gland 23 are fixed.
Certainly, the above is only the preferred embodiments of the present utility model only, and therefore, it does not limit the patents of the utility model
Range, all with the utility model specification and schema content institute, simply modification and equivalent structure change for it, should all similarly wrap
Within scope of patent protection contained in the utility model.
Claims (6)
1. a kind of liquefied petroleum gas cylinder valve, including valve body, the side of valve body is equipped with interface, is equipped with valve assembly, valve in valve body
Body bottom end is equipped with overfill-limiting device, and top end of the valve body is fixed with pressure cap, and a valve rod protrudes into valve body after passing through pressure cap, valve stem tip peace
Equipped with handwheel, it is characterised in that: be equipped with pressing sleeve in the interface, pressing sleeve inner end is equipped with sealing plain cushion and seal receptacle, leads in pressing sleeve
Cross the mode being threadedly coupled and one spool be installed, valve core upper sleeve has the first spring, a positioning pin penetrated from interface side wall and with pressure
Set connection；The pressure cap sleeving and riveting is in top end of the valve body.
2. a kind of liquefied petroleum gas cylinder valve according to claim 1, it is characterised in that: the side wall of the interface is equipped with logical
Hole, the outer wall of pressing sleeve are equipped with the jack being connected to through-hole, and positioning pin is protruded into jack after passing through through-hole and connect with pressing sleeve.
3. a kind of liquefied petroleum gas cylinder valve according to claim 1, it is characterised in that: be equipped between the valve rod and pressure cap
First O-ring.
4. a kind of liquefied petroleum gas cylinder valve according to claim 1, it is characterised in that: the pressing sleeve inner end and interface inner wall
Between be equipped with the first sealing ring, between spool outer end and pressing sleeve inner wall be equipped with the second sealing ring.
5. a kind of liquefied petroleum gas cylinder valve according to claim 1, it is characterised in that: the overfill-limiting device includes having to fill
Gas channel and the outer cover connecting with valve body, outer cover top side wall are equipped with air inlet, are equipped in the inner cavity of outer cover and play on or off
The piston of filling channel is closed, second spring is cased on piston, the bottom end of outer cover is equipped with the gland being located at below piston, sets in gland
There is a thimble, thimble top is equipped with deformed spring, and the bottom end of the outer cover has been rotatably coupled by a bolt for driving
The fly rod that thimble moves up and down is equipped with float on fly rod.
6. a kind of liquefied petroleum gas cylinder valve according to claim 5, it is characterised in that: the bottom end of the outer cover has bottom
The top of seat, fly rod is hinged by bolt and pedestal, and the top of the fly rod has the first convex block and the second convex block, the first convex block
And second form between convex block fluted, the first convex block is connected to thimble bottom end, and after fly rod rotation, groove is for thimble bottom end card
Enter；The centre of the gland has the open-work of perforation, and thimble is accommodated in open-work, and thimble housing has second for being closed open-work
O-ring, top and the gland of deformed spring are fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821969014.4U CN209115782U (en) | 2018-11-27 | 2018-11-27 | A kind of liquefied petroleum gas cylinder valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821969014.4U CN209115782U (en) | 2018-11-27 | 2018-11-27 | A kind of liquefied petroleum gas cylinder valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209115782U true CN209115782U (en) | 2019-07-16 |
Family
ID=67206716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821969014.4U Active CN209115782U (en) | 2018-11-27 | 2018-11-27 | A kind of liquefied petroleum gas cylinder valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209115782U (en) |
-
2018
- 2018-11-27 CN CN201821969014.4U patent/CN209115782U/en active Active
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