CN206503984U - A kind of low-pressure relief valve on liquefied petroleum gas steel cylinder - Google Patents
A kind of low-pressure relief valve on liquefied petroleum gas steel cylinder Download PDFInfo
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- CN206503984U CN206503984U CN201720060175.0U CN201720060175U CN206503984U CN 206503984 U CN206503984 U CN 206503984U CN 201720060175 U CN201720060175 U CN 201720060175U CN 206503984 U CN206503984 U CN 206503984U
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Abstract
The utility model provides the low-pressure relief valve on a kind of liquefied petroleum gas steel cylinder, including sealing ring and the push rod on pressure-reducing valve cylinder shape valve axis；Sealing ring and push rod are installed in valve body；Sealing ring is located at the junction of pressure-reducing valve and cylinder valve, sealing ring is coated on the outer wall of push rod slideway, the interior diameter of sealing ring is less than the outer diameter of push rod slideway, sealing ring is installed in the first Baltimore groove of body base inlet end, the overall diameter of sealing ring is identical with the interior diameter of the first Baltimore groove, and inlet end is located at the junction of pressure-reducing valve and cylinder valve.Sealing effectiveness is strengthened by the sealing ring positioned at pressure-reducing valve and the junction of cylinder valve, avoid rubber seal abrasion, the corrosion due to cylinder valve itself, aging, and then breakage and cause the major accidents such as gas leakage, so as to improve from the security during combustion gas use, potential safety hazard is reduced.
Description
Technical field
The utility model is related to the low pressure decompression on gas pressure-reducing valve field, more particularly to a kind of liquefied petroleum gas steel cylinder
Valve.
Background technology
Pressure-reducing valve for liquified petroleum gas is a kind of device for keeping downstream pressure stable, in use, the liquefied petroleum
The effect of gas pressure-reducing valve is to maintain combustion gas stable pressure in use, so as to ensure that gas appliance has stable combustion
Sky is than (mixing ratio of combustion gas and air)；Gas pressure is reduced and stably at one using pressure-reducing valve in fuel gas supply system
The use of combustion gas is set to be in safety, economy and the level efficiently utilized, but common pressure-reducing valve only leans on cylinder valve certainly
The sealing ring of body seals supply, and the material of sealing ring is usually rubber, can wear and tear, corrode afterwards by long-term use, aging, enter
And it is damaged and cause the major accidents such as gas leakage.
Utility model content
In order to solve problem of the prior art, the utility model embodiment provides low on a kind of liquefied petroleum gas steel cylinder
Press pressure-reducing valve.The technical scheme is as follows：
Sealing ring and the push rod on the pressure-reducing valve cylinder shape valve axis；The sealing ring and described push away
Bar is installed in valve body；
The sealing ring is located at the junction of the pressure-reducing valve and cylinder valve, and the sealing ring is coated on the outer of push rod slideway
On wall, the interior diameter of the sealing ring is less than the outer diameter of the push rod slideway, and the sealing ring is installed on the valve body bottom
In first Baltimore groove of portion's inlet end, the overall diameter of the sealing ring is identical with the interior diameter of first Baltimore groove, it is described enter
Gas end is located at the junction of the pressure-reducing valve and cylinder valve.
It is preferred that, the pressure-reducing valve also includes
Lever assembly, diaphragm unit, pressure spring, bonnet and switching knob component.
It is preferred that,
The bonnet includes 3 Baltimore grooves of shape identical second.
It is preferred that, the low-pressure relief valve also includes：
Fast joint structure positioned at the junction, the fast joint structure include positioned at valve base valve element with
And setting and the neck of the valve base, the neck is for placement positioning ball, the valve element and the valve base inwall
Between be provided with adjustable spring, the adjustable spring is held in the place kick, and the place kick is used for cylinder valve described in clamping
Groove.
It is preferred that,
It is column construction with the succeeding portions of the pressure-reducing valve on the cylinder valve, the column construction includes being located at described
The 3rd Baltimore groove at the top of column construction, the internal diameter of the 3rd Baltimore groove is identical with the external diameter of the sealing ring.
It is preferred that,
The pressure spring is overlapped with the axis of the diaphragm unit with the spindle of valve body line, in the lever assembly
Lever be riveted on the cavity of resorption levers support of valve body seat, a valve pad is installed in the side of the lever, and the valve pad is used for
The opening and closing of aperture are controlled, the opposite side of the lever is stretched into a square hole of pressure pad in the diaphragm unit；
The pressure spring is located between the bonnet and the diaphragm unit, and the lever assembly is located at the diaphragm group
Part lower end, is connected with the diaphragm unit.
The utility model provides the low-pressure relief valve on a kind of liquefied petroleum gas steel cylinder, including sealing ring and positioned at subtracting
Push rod on pressure valve cylinder shape valve axis；Sealing ring and push rod are installed in valve body；Sealing ring is located at pressure-reducing valve and steel
The junction of cylinder valve, sealing ring is coated on the outer wall of push rod slideway, and the interior diameter of sealing ring is straight less than the outer wall of push rod slideway
Footpath, sealing ring is installed in the first Baltimore groove of body base inlet end, the overall diameter of sealing ring and the first Baltimore groove it is interior straight
Footpath is identical, and inlet end is located at the junction of pressure-reducing valve and cylinder valve.Pass through the sealing positioned at pressure-reducing valve and the junction of cylinder valve
Circle strengthens sealing effectiveness, it is to avoid due to rubber seal abrasion, the corrosion of cylinder valve itself, aging, and then damaged and draw
The major accidents such as gas leakage are played, so as to improve from the security during combustion gas use, potential safety hazard are reduced.
Brief description of the drawings
, below will be to needed for embodiment description in order to illustrate more clearly of the technical scheme in the utility model embodiment
The accompanying drawing to be used is briefly described, it should be apparent that, drawings in the following description are only some realities of the present utility model
Example is applied, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is the low-pressure relief valve structural representation on a kind of liquefied petroleum gas steel cylinder that the utility model embodiment is provided
Figure；
Fig. 2 is that low-pressure relief valve and cylinder valve on a kind of liquefied petroleum gas steel cylinder that the utility model embodiment is provided connect
Schematic diagram after connecing.
Embodiment
To make the purpose of this utility model, technical scheme and advantage clearer, implement below in conjunction with the utility model
Accompanying drawing in example, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that described reality
It is only a part of embodiment of the utility model to apply example, rather than whole embodiments.Based on the embodiment in the utility model,
The every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, belongs to this reality
With novel protected scope.
The utility model provides the low-pressure relief valve on a kind of liquefied petroleum gas steel cylinder, and the low-pressure relief valve is applied to height
The decompression of gas bomb in use is pressed, propane is applied especially to, butane and gaseous mixture (liquefied petroleum gas) steel cylinder make
Decompression during, the embodiment of the present invention is not limited to specific usage scenario.
The utility model provides the low-pressure relief valve on a kind of liquefied petroleum gas steel cylinder, and shown in reference picture 1, the low pressure subtracts
Pressure valve at least includes：Bonnet 1, pressure spring 2, diaphragm unit 3, lever assembly 4, cavity cap 5, high pressure spring 6, push rod 7, switch
Knob assembly 8, inlet end 10 and outlet side.
Fig. 2 is showing after the low-pressure relief valve on liquefied petroleum gas steel cylinder provided in an embodiment of the present invention and cylinder valve connection
It is intended to, shown in reference picture 2, the low-pressure relief valve also includes sealing ring 9, the fast joint structure positioned at junction.
Wherein, push rod 7 is located on pressure-reducing valve cylinder shape valve axis；Sealing ring 9 and push rod 7 are installed in valve body；
Shown in reference picture 2, sealing ring 9 is located at the junction of pressure-reducing valve and cylinder valve, and sealing ring 9 is coated on push rod slideway
On outer wall, the interior diameter of sealing ring 9 is less than the outer diameter of push rod slideway, and in actual applications, the interior diameter of sealing ring 9 is with pushing away
Difference between the outer diameter of bar slideway can be in interval (0mm-0.5mm), so as to realize sealing ring and push rod slideway
The effect being brought into close contact, strengthens sealing effectiveness.
Sealing ring 9 is installed on 11 in the first Baltimore groove of body base inlet end 10, and overall diameter and the valve body of sealing ring 9 enter
The interior diameter of first Baltimore groove at gas end 10 is identical, and the first Baltimore groove 11 is located at the junction of pressure-reducing valve and cylinder valve.
Further, sealing ring 9 and the structure of pusher slide pipeline outer wall contact portion can also include at least one convex knot
Structure or concave structure, corresponding, structure of the pusher slide pipeline outer wall at the cladding of sealing ring 9 can be concave structure or convex knot
Structure；The concave structure or convex structure can be annular concave structure or convex structure, or spill point or convex point.
It is preferred that, bonnet 1 is identical including 3 shapes, is uniformly distributed the second Baltimore groove with the bonnet, not only facilitates workman
Taken during riveted bonnet, and with strong concave-convex sense, well arranged, lines are succinct, add the aesthetic property of the pressure-reducing valve.
It is preferred that, low-pressure relief valve also includes：
Fast joint structure is located at the valve element and setting and the neck of valve base 12 of valve base, and neck is used to place
Place kick 13, is provided with adjustable spring between valve element and the inwall of valve base 12, adjustable spring is held in place kick 13, place kick
13 are used for the groove of clamping cylinder valve, shown in reference picture 2.
It is preferred that,
It is column construction with the succeeding portions of pressure-reducing valve on cylinder valve, column construction bag is located at the 3rd at the top of column construction
Baltimore groove 14, the internal diameter of the 3rd Baltimore groove 14 is identical with the external diameter of sealing ring 9, shown in reference picture 2.
It is preferred that,
Pressure spring 2 is overlapped with the axis of diaphragm unit 3 with spindle of valve body line, and the lever in lever assembly 4 is riveted on
On the cavity of resorption levers support seat of valve body, a valve pad is installed in the side of lever, and valve pad is used for the opening and closing for controlling aperture, lever
Opposite side stretch into a square hole of pressure pad in diaphragm unit；
Pressure spring 2 is located between bonnet 1 and the component of diaphragm 3, and lever assembly 4 is located at the lower end of diaphragm unit 3, with diaphragm group
Part 3 is connected.
It should be noted that the operation principle of low-pressure relief valve provided by the utility model is：
Enter valve pocket when high pressure gas enters through aperture from inlet end, valve cavity pressure increase causes diaphragm unit to moving up
It is dynamic, cause lever assembly valve plug to be closed with aperture lip while driving lever assembly afterbody to move up, constantly open closure to control
Make throughput to reduce outlet pressure, until valve pocket and the combustion gas that spring pressure relative equilibrium rear valve body is stablized are defeated
Go out.Liquefied petroleum gas first passes through air inlet pipe for gases at high pressure when being come out from steel cylinder and reaches pressure-reducing chamber, when user closes gas utensil
During switch, as the liquefied petroleum gas for entering pressure-reducing chamber increases, its pressure rise, on the rubber film top that spring press against
Go, be present in the partial air of upper chamber by spiracle exits valve body.So, force lever assembly to move up, utilize lever
Component effect closes valve port, has cut off the path of liquefied petroleum gas import, and the pressure of decompression valve outlet just no longer rises.When beating
After the switch for opening gas utensil, liquefied petroleum gas flows out out of pressure-reducing valve, declines the pressure in pressure-reducing chamber, rubber film is recessed,
Lever assembly is driven to move down, extraneous air enters upper chamber from spiracle, moves up valve pad, nozzle of air supply becomes big, air inlet
Amount increase, pressure rise.
The operation principle of low-pressure relief valve provided by the utility model and cylinder valve connection procedure is：
In low-pressure relief valve and cylinder valve connection procedure, sealing ring is inserted in the 3rd groove, so that sealing ring pair
The air inlet of cylinder valve is sealed, and is realized on the basis of cylinder valve self seal circle is to cylinder valve inlet seal, further
Add sealing effectiveness.
In addition, in low-pressure relief valve and cylinder valve connection procedure, place kick is used for the groove of cylinder valve described in clamping, with
The adjustable spring that the place kick is supported is acted on by elastic force, further increases clamping effect.
In low-pressure relief valve and cylinder valve connection procedure, by stainless shot so that being connect at the top of the cylinder valve with sealing ring
Touch, it is convenient to install, meanwhile, by base spring and fast joint structure, realize low-pressure relief valve be connected with cylinder valve after consolidate
Fixed, security performance is preferable.
The utility model provides the low-pressure relief valve on a kind of liquefied petroleum gas steel cylinder, by positioned at pressure-reducing valve and steel cylinder
The sealing ring of the junction of valve strengthens sealing effectiveness, it is to avoid due to rubber seal abrasion, the corrosion of cylinder valve itself, always
Change, so it is damaged and cause the major accidents such as gas leakage, so as to improve from the security during combustion gas use, reduce safety
Hidden danger.
Above-mentioned all optional technical schemes, can form alternative embodiment of the present utility model, herein using any combination
No longer repeat one by one.
Preferred embodiment of the present utility model is the foregoing is only, it is all in this practicality not to limit the utility model
Within new spirit and principle, any modification, equivalent substitution and improvements made etc. should be included in guarantor of the present utility model
Within the scope of shield.
Claims (6)
1. the low-pressure relief valve on a kind of liquefied petroleum gas steel cylinder, it is characterised in that the low-pressure relief valve at least includes：
Sealing ring and the push rod on the pressure-reducing valve cylinder shape valve axis；The sealing ring and push rod peace
Loaded in valve body；
The sealing ring is located at the junction of the pressure-reducing valve and cylinder valve, and the sealing ring is coated on the outer wall of push rod slideway
On, the interior diameter of the sealing ring is less than the outer diameter of the push rod slideway, and the sealing ring is installed on the body base
In first Baltimore groove of inlet end, the overall diameter of the sealing ring is identical with the interior diameter of first Baltimore groove, the air inlet
End is positioned at the junction of the pressure-reducing valve and cylinder valve.
2. low-pressure relief valve according to claim 1, it is characterised in that the pressure-reducing valve also includes
Lever assembly, diaphragm unit, pressure spring, bonnet and switching knob component.
3. low-pressure relief valve according to claim 2, it is characterised in that
The bonnet includes 3 Baltimore grooves of shape identical second.
4. the low-pressure relief valve according to Claims 2 or 3, it is characterised in that the low-pressure relief valve also includes：
Fast joint structure positioned at the junction, the fast joint structure includes being located at the valve element of valve base and set
The neck with the valve base is put, the neck is used for placement positioning ball, between the valve element and the valve base inwall
Adjustable spring is provided with, the adjustable spring is held in the place kick, and the place kick is used for the ditch of cylinder valve described in clamping
Groove.
5. low-pressure relief valve according to claim 4, it is characterised in that
It is column construction with the succeeding portions of the pressure-reducing valve on the cylinder valve, the column construction includes being located at the cylindricality
3rd Baltimore groove of structural top, the internal diameter of the 3rd Baltimore groove is identical with the external diameter of the sealing ring.
6. low-pressure relief valve according to claim 2, it is characterised in that
The pressure spring is overlapped with the axis of the diaphragm unit with the spindle of valve body line, the thick stick in the lever assembly
Bar is riveted on the cavity of resorption levers support seat of the valve body, and a valve pad is installed in the side of the lever, and the valve pad is used to control
The opening and closing of aperture, the opposite side of the lever is stretched into a square hole of pressure pad in the diaphragm unit；
The pressure spring is located between the bonnet and the diaphragm unit, and the lever assembly is located under the diaphragm unit
End, is connected with the diaphragm unit.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720060175.0U CN206503984U (en) | 2017-01-18 | 2017-01-18 | A kind of low-pressure relief valve on liquefied petroleum gas steel cylinder |
| PE2017002537U PE20181437Z (en) | 2017-01-18 | 2017-12-06 | LOW PRESSURE REGULATORS FOR USE WITH LIQUEFIED PETROLEUM GAS (LPG) CYLINDERS |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720060175.0U CN206503984U (en) | 2017-01-18 | 2017-01-18 | A kind of low-pressure relief valve on liquefied petroleum gas steel cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206503984U true CN206503984U (en) | 2017-09-19 |
Family
ID=59839933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720060175.0U Active CN206503984U (en) | 2017-01-18 | 2017-01-18 | A kind of low-pressure relief valve on liquefied petroleum gas steel cylinder |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN206503984U (en) |
| PE (1) | PE20181437Z (en) |
-
2017
- 2017-01-18 CN CN201720060175.0U patent/CN206503984U/en active Active
- 2017-12-06 PE PE2017002537U patent/PE20181437Z/en active IP Right Grant
Also Published As
| Publication number | Publication date |
|---|---|
| PE20181437Z (en) | 2018-09-12 |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |