CN202927087U - Switch valve used for natural gas steel cylinder - Google Patents
Switch valve used for natural gas steel cylinder Download PDFInfo
- Publication number
- CN202927087U CN202927087U CN 201220539544 CN201220539544U CN202927087U CN 202927087 U CN202927087 U CN 202927087U CN 201220539544 CN201220539544 CN 201220539544 CN 201220539544 U CN201220539544 U CN 201220539544U CN 202927087 U CN202927087 U CN 202927087U
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- CN
- China
- Prior art keywords
- valve
- chock plug
- sprue
- valve body
- steel cylinder
- 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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- Taps Or Cocks (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The utility model provides a switch valve used for a natural gas steel cylinder. The switch valve used for the natural gas steel cylinder comprises a valve body and a control device, wherein a main runner is arranged inside the valve body, an opening is formed on the top of the main runner, a filling port is communicated with a valve port in the axial direction, a valve base is arranged on the bottom of the valve body, at least one positioning groove communicated with the main runner is formed in the lower outer wall of the opening of the valve body along the radial direction, threads of a control rod are connected with the opening on the top of the main runner, a chock plug contained in the main runner is arranged on the bottom of the control rod, a handle exposed from the valve body is connected and installed on the top of the control rod, at least one O-shaped ring is sleeved on a flange part below the chock plug along the radial direction, an airtight function is achieved by the matching of the inner wall of the main runner and the O-shaped ring, and at least one locking component is inserted and fixed in the positioning groove. The chock plug is driven to move along the axial direction in the main runner through a rotary handle, and then the valve port is covered by the bottom of the flange part of the chock plug to cut off the communication between the main runner and the filling port, or the top of the flange part of the chock plug abuts against the locking component to prevent the handle from driving the control rod to rotate continuously, and therefore the control rod is prevented from getting loose at the position of the opening on the top of the main runner, and natural gas is prevented from erupting.
Description
Technical field
The utility model relates to a kind of switch valve, relates in particular to a kind of switch valve for natural gas steel cylinder.
Background technique
At present, in the city cooking, majority all uses rock gas, especially general family, no matter be pipeline supply or with the steel cylinder storage, and except being used for the cooking, the also thermal source of Chang Zuowei water heater.And the hidden danger of natural gas motorcar is problem, especially gas furnace or the water heater incomplete combustion of Security to cause the poisoning of carbon monoxide, come clearly into view, and the unfortunate case of this kind is through being common in space in a newspaper.In addition, with regard to the steel cylinder of accommodating high-pressure liquid rock gas, if switch valve is abnormal, and cause leaking, if run into flare, can form gas explosion again, so there is the people to claim the barreled rock gas to be " not timing bomb ", danger has some idea of.
In prior art, switch valve is installing one controlling rod in the valve body open top, described controlling rod below is wholely set a chock plug, separately a blind nut is screwed to the valve body open top, and the screw that described blind nut central authorities offer is threaded for controlling rod, and the controlling rod top is hinged with the leader separately.Wherein, described blind nut and valve body open top are left hand thread, and the screw of controlling rod and blind nut is right-hand thread.Therefore, when rotating handles, can drive controlling rod and move axially along blind nut, in order to sprue is formed the keying effect.And open for gaseity when switch valve is in, and continue may make blind nut be controlled the turning effort of bar to the rotation of the handle application of force, and got loose by the valve body open top, make high-pressure gas by valve body open top ejection, at this moment, if run into flare, can produce the danger of gas explosion.
Therefore, necessary switch valve to the prior art natural gas steel cylinder improves.
The model utility content
The purpose of this utility model is to provide a kind of switch valve for natural gas steel cylinder, and described switch valve arranges at least one stopper element in the open top inner radial, when making controlling rod drive chock plug move axially to top dead center; The lip part of described chock plug can prop up described stopper element, is deviate from by open top to avoid described controlling rod, with the harm of avoiding the pressurized gas ejection to cause.
Correspondingly, a kind of switch valve for natural gas steel cylinder of the present utility model, comprise: valve body, described valve body inside has sprue, described sprue top has opening, and in valve port position radial communication one filling exit, described valve body bottom is provided with valve base section, and the opening of described valve body below outer wall is radially offered the locating slot of at least one perforation sprue; Control gear is threadedly connected to the sprue open top with controlling rod, and described controlling rod bottom is provided with the chock plug that is placed in sprue, and the top is hinged with a handle that exposes to main valve body; The lip part of described chock plug below radially sheathed at least one and sprue inwall form the O type ring of airtight effect; At least one stopper element inserts and is fixed in locating slot; Pass through rotating handles, can make controlling rod drive chock plug and move axially in sprue, make the lip part bottom of chock plug cover valve port, to cut off being communicated with of sprue and filling exit, perhaps the lip part top of chock plug props up stopper element, makes handle can't continue to drive the controlling rod rotation.
As further improvement of the utility model, at the bottom of described controlling rod and chock plug, the top correspondence arranges access slot and convex button, described convex button intercalation also is fixed in access slot, and both are combined as a whole.
As further improvement of the utility model, the lip part bottom recesses of described chock plug is set an elastic sealing gasket.
As further improvement of the utility model, the opening of described valve body below outer wall radial parallel is offered a pair of locating slot, so that after inserting stopper element respectively, and each stopper element rear end is rushed riveting, and stopper element is fixed in locating slot.
As further improvement of the utility model, the valve port of described sprue is to radial communication one bleed outlet between valve base section, the safety valve of installing pressure release in described bleed outlet.
The beneficial effects of the utility model are: by the interference of stopper element to the chock plug lip part, can avoid controlling rod to be got loose by the sprue open top, to stop the rock gas ejection.
Description of drawings
Figure 1 shows that the utility model is used for the three-dimensional exploded view of the switch valve of natural gas steel cylinder.
Figure 2 shows that the stereogram after the utility model is used for the switch valve assembling of natural gas steel cylinder.
Fig. 3 is the sectional drawing of Fig. 2 A-A along the line.
Fig. 4 is the sectional drawing of Fig. 2 B-B along the line.
Embodiment
Below with reference to embodiment shown in the drawings, the utility model is described in detail.But these mode of executions do not limit the utility model, and the conversion on the structure that those of ordinary skill in the art makes according to these mode of executions, method or function all is included in protection domain of the present utility model.
As shown in Figures 1 to 4, the utility model comprises for the switch valve of natural gas steel cylinder: valve body 1, control gear 2 and at least one stopper element 3.
Valve body 1 is by metal, the manifold of brass forging molding for example, its inside has stair-stepping sprue 11, and described sprue 11 is in valve port 111 position radial communication one filling exits 12, described can 12 be in order to high-pressure liquid gas by sprue 11, and enter in steel cylinder and store; And the opening that described filling exit 12 is also exported for the pressurized gas after gasification in steel cylinder.Described valve body 1 bottom is provided with valve base section 13, and its periphery is provided with outside thread 131, in order to be threadedly connected to steel cylinder.
Moreover described sprue 11 tops are provided with opening 14, and its inwall is provided with internal thread 141, in order to for 2 installings of aftermentioned control gear, control supply or the cut-out of pressurized gas.In addition, the valve port 111 of described sprue 11 is to another radial communication one bleed outlet 15 between valve base section 13, interior installing one pressure relief safety valve 16 of described bleed outlet 15, when the steel cylinder internal pressure during greater than 24 kilograms per square centimetres, described safety valve 16 is namely opened, so that with earth pressure release excessive in steel cylinder, with the safety of guaranteeing that steel cylinder uses, described safety valve 16 belong to known technology as flowing mode, do not repeat them here.
Control gear 2 comprises controlling rod 21, chock plug 22 and handle 23.Chock plug 22 is located at controlling rod 21 bottoms, and handle 23 is installed in controlling rod 21 tops.Wherein, described controlling rod 21 peripheries are provided with outside thread 211, in order to be threadedly connected to the internal thread 141 of sprue 11 open top 14 inwalls.Therefore, when rotating handles 23, can make controlling rod 21 drive chock plug 22 moves axially in sprue 11, and by the lip part 221 of described chock plug 22 belows radially sheathed at least one O type ring 222 and the sprue 11 formed airtight effects of inwall, make pressurized gas be unlikely to be leaked by sprue 11 open tops 14.Moreover lip part 221 bottom recesses 223 of described chock plug 22 are set an elastic sealing gasket 224; When rotating handles 23, when making switch valve be in closed condition, described sealing gasket 224 covers valve port 111, to cut off being communicated with of sprue 11 and filling exit 12, makes the supply of steel cylinder inner high voltage gas be cut off, and can't be exported by filling exit 12.
For the combination of controlling rod 21 with chock plug 22 is provided, an access slot 212 that falls convex shape is radially offered in described controlling rod 21 bottoms, and chock plug 22 top correspondences arrange the convex button 225 of a convex, described convex button 225 is intercalated in described access slot 212, both are combined as a whole, and can make the chock plug 22 can be along with controlling rod 21 synchronous shift.
The opening 14 below outer walls of described valve body 1 are radially offered the locating slot 17 of at least one perforation sprue 11, as Fig. 1 and shown in Figure 4, described open top 14 below outer wall radial parallel are offered a pair of locating slot 17, so that after inserting respectively a stopper element 3, and each stopper element 3 rear ends are rushed riveting, make stopper element 3 be unlikely to deviate from locating slot 17.Wherein, the leading portion of each stopper element 3 is solid body, and the rear end has a bit of groove, and the distortion that described groove produces when rushing riveting can make stopper element 3 be unlikely to deviate from locating slot 17.
as shown in Figure 4, described to stopper element 3 boundaries between the lip part 221 of controlling rod 21 and chock plug 22, and as the top dead center of lip part 221, also namely when rotating handles 23, when making switch valve be in opening state, described sealing gasket 224 is moved to valve port 111 tops, and being formed, sprue 11 and filling exit 12 be communicated with, make the pressurized gas in steel cylinder to be supplied by filling exit 12 outputs, and lip part 221 end faces prop up described to stopper element 3, make handle 23 can't continue to drive controlling rod 21 rotations, so controlling rod 21 is unlikely to be got loose by sprue 11 open tops 14, thereby avoid the pressurized gas ejection to work the mischief.
Helpfulness of the present utility model is, by the interference of stopper element to the chock plug lip part, can avoid controlling rod to be got loose by the sprue open top, and to stop pressurized gas, for example rock gas ejection may cause the danger of gas explosion.In addition, the design of the sheathed two O type rings of the lip part of described chock plug increases airtight double shield.
Be to be understood that, although this specification is described according to mode of execution, but be not that each mode of execution only comprises an independently technological scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should make specification as a whole, technological scheme in each mode of execution also can through appropriate combination, form other mode of executions that it will be appreciated by those skilled in the art that.
Above listed a series of detailed description is only illustrating for feasibility mode of execution of the present utility model; they are not to limit protection domain of the present utility model, all disengaging within equivalent mode of execution that the utility model skill spirit does or change all should be included in protection domain of the present utility model.
Claims (5)
1. a switch valve that is used for natural gas steel cylinder, is characterized in that, comprising:
Valve body, described valve body inside has sprue, and described sprue top has opening, and in valve port position radial communication one filling exit, described valve body bottom is provided with valve base section, and the opening of described valve body below outer wall is radially offered the locating slot of at least one perforation sprue;
Control gear is threadedly connected to the sprue open top with controlling rod, and described controlling rod bottom is provided with the chock plug that is placed in sprue, and the top is hinged with a handle that exposes to main valve body; The lip part of described chock plug below radially sheathed at least one and sprue inwall form the O type ring of airtight effect;
At least one stopper element inserts and is fixed in locating slot;
Pass through rotating handles, can make controlling rod drive chock plug and move axially in sprue, make the lip part bottom of chock plug cover valve port, to cut off being communicated with of sprue and filling exit, perhaps the lip part top of chock plug props up stopper element, makes handle can't continue to drive the controlling rod rotation.
2. the switch valve for natural gas steel cylinder according to claim 1, is characterized in that, at the bottom of described controlling rod and chock plug, the top correspondence arranges access slot and convex button, described convex button intercalation also is fixed in access slot, and both are combined as a whole.
3. the switch valve for natural gas steel cylinder according to claim 1, is characterized in that, the lip part bottom recesses of described chock plug is set an elastic sealing gasket.
4. the switch valve for natural gas steel cylinder according to claim 1, it is characterized in that, below the opening of described valve body, the outer wall radial parallel is offered a pair of locating slot, so that after inserting stopper element respectively, and each stopper element rear end is rushed riveting, stopper element is fixed in locating slot.
5. the switch valve for natural gas steel cylinder according to claim 1, is characterized in that, the valve port of described sprue is to radial communication one bleed outlet between valve base section, the safety valve of installing pressure release in described bleed outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220539544 CN202927087U (en) | 2012-10-16 | 2012-10-16 | Switch valve used for natural gas steel cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220539544 CN202927087U (en) | 2012-10-16 | 2012-10-16 | Switch valve used for natural gas steel cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202927087U true CN202927087U (en) | 2013-05-08 |
Family
ID=48217047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220539544 Expired - Fee Related CN202927087U (en) | 2012-10-16 | 2012-10-16 | Switch valve used for natural gas steel cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202927087U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104976505A (en) * | 2014-04-09 | 2015-10-14 | 蔡惟名 | Gas Filling Nozzle With Safety Function |
-
2012
- 2012-10-16 CN CN 201220539544 patent/CN202927087U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104976505A (en) * | 2014-04-09 | 2015-10-14 | 蔡惟名 | Gas Filling Nozzle With Safety Function |
| CN104976505B (en) * | 2014-04-09 | 2017-08-25 | 蔡惟名 | Gas filling nozzle with safety function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130508 Termination date: 20131016 |