CN204647470U - A kind of breaking piece of natural gas cylinder - Google Patents
A kind of breaking piece of natural gas cylinder Download PDFInfo
- Publication number
- CN204647470U CN204647470U CN201520338766.0U CN201520338766U CN204647470U CN 204647470 U CN204647470 U CN 204647470U CN 201520338766 U CN201520338766 U CN 201520338766U CN 204647470 U CN204647470 U CN 204647470U
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- CN
- China
- Prior art keywords
- core body
- housing
- rupture disk
- pressure
- export mouth
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Abstract
The utility model discloses a kind of breaking piece of natural gas cylinder, comprise housing, inner chamber is provided with in housing, core body is slidably fitted with in described inner chamber, this core body is provided with elastic component near between the end and housing of entry port, the outer installment external sealed face of core body, the interior cavity wall of housing is provided with inner sealing surface, the external sealed face of core body relies on the elastic force of elastic component to coordinate with the inner sealing surface of housing, this core body is provided with and squeezes the portion of touching on the end face of export mouth, this squeezes the portion of touching and is squeezed in tactile making by part, external sealed face is separated entry port and export mouth conducting, be provided with on housing or on core body and prevent breaking piece chamber pressure excessive and the first pressure relief of blast.This breaking piece not only automatically can cut out when dismounting and change safety valve or pressure gauge or pressure transducer and effectively prevent natural gas leakage in steel cylinder, saves a large amount of rock gas, and the pressure release when gas cylinder internal pressure exceedes safety value, greatly improves Safety performance.
Description
Technical field
The utility model relates to a kind of breaking piece, refers to the breaking piece on a kind of natural gas cylinder especially.
Background technique
The automobile utilizing rock gas as fuel is all needed to use cylinder storage rock gas, and these gas cylinders are communicated with a steam line usually, a safety valve, in addition or join a pressure transducer and pressure gauge, steam line is generally stop valve is installed, be used for opening and closing steam line, and safety valve, pressure gauge, pressure transducer is then directly communicated with gas cylinder internal, and unsuitable mounted valve, because compressed natural gas can change at gas cylinder internal pressure in the moment, once gas cylinder internal pressure reaches setting safety pressure, safety valve will open release automatically, , therefore, if installed valve, so this valve is also often to open, but the opening and closing of this valve can not intuitively embody again, therefore, this valve may be forgotten out, cause safety valve not play a role so at all, same, pressure gauge, pressure transducer also not easily mounted valve.So once safety valve, pressure gauge, pressure transducer need regular dismounting to calibrate or maintain and replace, when dismantling safety valve, pressure gauge and pressure transducer so again, the rock gas in bottle will all bleed off, and causes the waste of ample resources.And also have a kind of connector being used for being arranged between gas cylinder and safety valve at present, this connector can be airtight by gas cylinder when taking off safety valve, and during mounting safety valve, it is communicated with gas cylinder internal, also there is a very large drawback in right this connector, when taking off safety valve, if forget mounting safety valve because of other things, so whole gas cylinder is all airtight, and when gas cylinder because some reason temperature raises, the gas pressure of gas cylinder internal increases suddenly, cause gas cylinder internal air pressure to exceed safety value and cannot the situation of pressure release in time, be present in potential safety hazard.
Model utility content
Technical problem to be solved in the utility model is: provide the breaking piece on a kind of natural gas cylinder, this breaking piece not only automatically can cut out and effectively prevent natural gas leakage in steel cylinder when at dismounting and change safety valve or pressure gauge or pressure transducer, save a large amount of rock gas, and the pressure release when gas cylinder internal pressure exceedes safety value, greatly improve Safety performance.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of breaking piece of natural gas cylinder, comprises housing, and one end of this housing is provided with inlet screw section, and inlet screw section is provided with entry port, the other end of housing is provided with outlet holding part, outlet holding part is provided with export mouth, the inner chamber being communicated with entry port and export mouth is set in described housing, core body is slidably fitted with in described inner chamber, this core body is provided with elastic component near between the end and housing of entry port, the outer installment external sealed face of described core body, the interior cavity wall of housing is provided with the inner sealing surface coordinated with external sealed face, the external sealed face of described core body relies on the elastic force of elastic component to coordinate with the inner sealing surface of housing, this core body is provided with and squeezes the portion of touching on the end face of export mouth, this squeezes the portion of the touching part be installed on outlet holding part and squeezes in tactile making, external sealed face is separated entry port and export mouth conducting, be provided with on described housing or on core body and prevent breaking piece chamber pressure excessive and the first pressure relief of blast.
As the preferred scheme of one, described first pressure relief comprises a rupture disk, and described core body is provided with the intercommunicating pore be communicated with export mouth by inner chamber near the end of export mouth, and described rupture disk is fixed in this intercommunicating pore to be separated intercommunicating pore and export mouth.
As the preferred scheme of one, described intercommunicating pore comprises the attachment hole section of wide-aperture tapped hole section and the little aperture be interconnected, positioning step is formed between described tapped hole section and attachment hole section, first pad and the second pad are installed in described tapped hole section, described rupture disk is arranged between the first pad and the second pad, tapped hole section internal thread is provided with the stud of band endoporus, and this stud compresses the first pad, rupture disk and the second pad.
As the preferred scheme of one, the pressure-bearing diameter setting this rupture disk is D, and the yield strength of the material of rupture disk is P
0, maximum safety pressure is by force P
1, rupture disk thickness is H, and pressure-bearing is stressed is F, and above-mentioned parameter need meet following relation: F=P
1× S=P
1× π × (D/2)
2; H≤F/P
0/ D.
As the preferred scheme of one, described first pressure relief comprises an elasticity rupture disk, described core body is provided with the intercommunicating pore be communicated with export mouth by inner chamber near the end of export mouth, described elasticity rupture disk is fixed on intercommunicating pore and export mouth in intercommunicating pore to be separated, the outside being positioned at elasticity rupture disk in described intercommunicating pore is provided with and punctures structure, and the elasticity rupture disk after this punctures structure and distortion when inner chamber exceedes safety pressure coordinates and punctured by elasticity rupture disk.
As the preferred scheme of one, described intercommunicating pore comprises the attachment hole section of wide-aperture tapped hole section and the little aperture be interconnected, positioning step is formed between described tapped hole section and attachment hole section, first pad and the second pad are installed in described tapped hole section, described elasticity rupture disk is arranged between the first pad and the second pad, tapped hole section internal thread is provided with the stud of band endoporus, this stud compresses the first pad, elasticity rupture disk and the second pad, the described structure that punctures comprises spur, this spur is arranged in the endoporus of stud by connecting rod, safe deformation spacing is there is between this spur and elasticity rupture disk.
As the preferred scheme of one, described first pressure relief comprises distortion sheet, described core body is provided with the intercommunicating pore be communicated with export mouth by inner chamber near the end of export mouth, this intercommunicating pore is near the endoporus of export mouth along being provided with deep gouge, and described distortion sheet to be arranged in deep gouge and to compress distortion sheet outer rim by clamping nut.
As the preferred scheme of one, described breaking piece also comprises the second pressure relief, and described first pressure relief is installed on core body, and described second pressure relief is installed on housing.
As the preferred scheme of one, described housing is provided with the installation screw be communicated with outside by inner chamber, is provided with swivel nut in this installation screw, described second pressure relief is installed on swivel nut.
As the preferred scheme of one, described second pressure relief is identical with the structure of the first pressure relief.
After have employed technique scheme, effect of the present utility model is: the inlet screw section of this connector is installed on the pipeline of steel cylinder, discharging holding part then can be installed with safety valve, pressure gauge, pressure transducer etc., because these parts are arranged on discharging holding part, therefore, these parts can squeeze the crowded tactile portion touching core body, thus force elastic component compressive strain, external sealed face is separated with inner sealing surface and makes the export mouth of connector and entry port moment keep being communicated with, safety valve, pressure gauge, the device moment such as pressure transducer are in using state, like this, this connector is just in normally open, when needs change check and correction pressure gauge pressure transducer or safety valve time, now, after removing these parts, corresponding, the power of these parts extruding core body is eliminated, core body just moves to export mouth under the elastic force of elastic component and the pressure of rock gas, thus the inner sealing surface fitted seal of the external sealed face of core body and housing.And now, if in time setting pressure table or pressure transducer or safety valve, the pressure of gas cylinder internal does not have too many change, if because other thing has delayed replacing, now connector is in closed condition always, now gas cylinder because of various outside cause (as outside air temperature is too high) gas cylinder air pressure is excessive time, now, the first pressure relief be arranged on housing or on core body works, connector is communicated with external environment condition, and then make gas cylinder and external environment connect, thus reach pressure release effect, prevent breaking piece chamber pressure excessive and explode.
Again because described first pressure relief comprises a rupture disk, described core body is provided with the intercommunicating pore be communicated with export mouth by inner chamber near the end of export mouth, described rupture disk is fixed in this intercommunicating pore to be separated intercommunicating pore and export mouth, this pressure relief advantages of simple, when gas cylinder internal pressure is excessive and when having exceeded safety pressure, rupture disk will damaged pressure release, thus reaches the object of timely pressure release, improves Safety performance.
Again because described first pressure relief comprises an elasticity rupture disk, described core body is provided with the intercommunicating pore be communicated with export mouth by inner chamber near the end of export mouth, described elasticity rupture disk is fixed on intercommunicating pore and export mouth in intercommunicating pore to be separated, the outside being positioned at elasticity rupture disk in described intercommunicating pore is provided with and punctures structure, elasticity rupture disk after this punctures structure and distortion when inner chamber exceedes safety pressure coordinates and is punctured by elasticity rupture disk, this pressure relief utilizes the resiliently deformable of elasticity rupture disk to control the excursion of gas cylinder internal pressure, structure will be punctured when elastic deformation amount is enough large to puncture, thus reach the object of pressure release, improve Safety performance.
Again because described first pressure relief comprises distortion sheet, described core body is provided with the intercommunicating pore be communicated with export mouth by inner chamber near the end of export mouth, this intercommunicating pore is near the endoporus of export mouth along being provided with deep gouge, and described distortion sheet to be arranged in deep gouge and to compress distortion sheet outer rim by clamping nut.This pressure relief utilizes the distortion of distortion sheet to carry out pressure release, when the pressure of gas cylinder exceedes Maximum safe pressure, the pressure that is subject to of distortion sheet inside will be greater than clamping nut compress the impacting force of outer rim, because of distortion, outer rim is separated with clamping nut this distortion sheet, thus reach the object of pressure release, improve Safety performance.
Again because described breaking piece also comprises the second pressure relief, described first pressure relief is installed on core body, and described second pressure relief is installed on housing, utilizes the first pressure relief and the second pressure relief to ensure pressure release promptness further, reliability is higher, and Safety performance is higher.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the structure sectional view of the utility model embodiment 1;
Fig. 2 is the structure sectional view of the utility model embodiment 2;
Fig. 3 is the partial structurtes sectional view of the utility model embodiment 3;
Fig. 4 is the partial structurtes sectional view of the utility model embodiment 4;
In accompanying drawing: 1. housing; 2. inlet screw section; 3. export holding part; 4. entry port; 5. export mouth; 6. core body; 7. upstream end thereof; 8. downstream end; 9. elastic component; 10. inner chamber; 11. attachment hole sections; 12. tapped hole sections; 13. first pads; 14. second pads; 15. rupture disks; 16. studs; 17. installation screws; 18. swivel nuts; 19. puncture structure 19; 20. connecting rods; 21. distortion sheets; 22. clamping nuts; 23. elasticity rupture disks.
Embodiment
Below by specific embodiment, the utility model is described in further detail.
Upstream and downstream described in the present invention is after being installed to gas cylinder with connector, and the flow direction of rock gas in connector is determined, flowing upstream side is upstream, and the lower right side of flowing is downstream.
Embodiment 1
As shown in Figure 1, a kind of breaking piece of natural gas cylinder, comprises housing 1, and one end of this housing 1 is provided with inlet screw section 2, inlet screw section 2 is provided with entry port 4; The other end of housing 1 is provided with outlet holding part 3, outlet holding part 3 is provided with export mouth 5, the inner chamber 10 being communicated with entry port 4 and export mouth 5 is set in described housing 1, in the present embodiment, inlet screw section 2 is be split shape with the body of housing 1, and is threaded connection fastening, certainly, also can adopt other Placement between the body of inlet screw section 2 and housing 1, such as, one-body molded or be welding mode.And inlet screw section 2 is outside thread, also can be internal thread, it mainly can mate with the pipe joint on gas cylinder.And export holding part 3 and be used to be connected with the device such as safety valve, pressure transducer, pressure gauge, therefore, what the present invention exported that holding part 3 adopts is female thread structure, conveniently installs.Core body 6 is slidably fitted with in described inner chamber 10, this core body 6 is provided with elastic component 9 near between the end of entry port 4 and housing 1, this elastic component 9 adopts Compress Spring, the outer installment external sealed face of described core body 6, inner chamber 10 inwall of housing 1 is provided with the inner sealing surface coordinated with external sealed face, the external sealed face of described core body 6 relies on the elastic force of elastic component 9 to coordinate with the inner sealing surface of housing 1, this core body 6 is provided with and squeezes the portion of touching on the end face of export mouth 5, this squeezes the portion of the touching part be installed on outlet holding part 3 and squeezes in tactile making, external sealed face is separated entry port 4 and export mouth 5 conducting, be provided with on described housing 1 or on core body 6 and prevent breaking piece inner chamber 10 pressure excessive and the first pressure relief of blast.
Function according to the first pressure relief can find, its main purpose is the pressure release when the internal pressure of breaking piece exceedes safety pressure, therefore, its setting position can be that to be arranged on core body 6 also can be arranged on housing 1, and the present embodiment is arranged on core body 6.
Described first pressure relief comprises a rupture disk 15, described core body 6 is provided with the intercommunicating pore be communicated with export mouth 5 by inner chamber 10 near the end of export mouth 5, described rupture disk 15 is fixed in this intercommunicating pore to be separated intercommunicating pore and export mouth 5, in order to describe more easily, the two ends of core body 6 are divided into upstream end thereof 7 and downstream end 8, upstream end thereof 7 has one and sinks to hole, and facilitate spring fitting, downstream end 8 is then provided with described intercommunicating pore.Wherein, described intercommunicating pore comprises the attachment hole section 11 of wide-aperture tapped hole the section 12 and little aperture be interconnected, positioning step is formed between described tapped hole section 12 and attachment hole section 11, first pad 13 and the second pad 14 is installed in described tapped hole section 12, described rupture disk 15 is arranged between the first pad 13 and the second pad 14, first pad 13 is fitted with positioning step and is located, tapped hole section 12 internal thread is provided with the stud 16 of band endoporus, and this stud 16 compresses the first pad 13, rupture disk 15 and the second pad 14.
Wherein, the pressure-bearing diameter setting this rupture disk 15 is D, and the yield strength of the material of rupture disk 15 is P
0, maximum safety pressure is by force P
1, rupture disk 15 thickness is H, and pressure-bearing is stressed is F, and above-mentioned parameter need meet following relation: F=P
1× S=P
1× π × (D/2)
2; H≤F/P
0/ D.In the present embodiment, rupture disk 15 selects aluminium flake, the yield strength P of this aluminium flake
0for 80Mpa, the pressure-bearing diameter D of aluminium flake is 5mm, and the strong P of maximum safety pressure
1for 3Mpa, so stressed F=P of aluminium flake cross section pressure-bearing
1× S=P
1× π × (D/2)
2=58.90486125N, and the thickness H maximum value of aluminium flake is 0.147262153mm, that is, the thickness of aluminium flake is only less than or equal to this thickness could the explosion when maximum safety pressure strong 3Mpa, if this thickness is more than the maximum value of H, then cannot explosion under the pressure of 3Mpa, therefore, strong and the material of rupture disk 15 of maximum safety pressure and the relation of thickness can be drawn according to above-mentioned formula, and then choose the best alternatives.
Embodiment 2
In the present embodiment, described breaking piece also comprises the second pressure relief, and described first pressure relief is installed on core body 6, and described second pressure relief is installed on housing 1.Certainly, if the first pressure relief is installed on housing 1, then the second pressure relief is installed on core body 6.
Described housing 1 is provided with by the installation screw 17 of inner chamber 10 with housing 1 ft connection, be provided with swivel nut 18 in this installation screw 17, described second pressure relief is installed on swivel nut 18.Described second pressure relief is identical with the structure of the first pressure relief.Certainly, disclose three kinds of pressure reliefs in the utility model, so the first pressure relief and the second pressure relief select any one or any two in these three kinds of pressure reliefs.And in the present embodiment, first pressure relief and the structure that all have employed in embodiment 1 identical with the second pressure relief, just, in the use of reality, although the first pressure relief is identical with the structure of the second pressure relief, different-thickness rupture disk 15 can be selected, so just make the safety relief pressure of the first pressure relief and the second pressure relief have height to have low, serve Double-pressure-relief effect like this, further increase safety reliability simultaneously.
Embodiment 3
Basic structure in the present embodiment is identical with embodiment 1, just the first pressure relief is distinguished to some extent, in the present embodiment, described first pressure relief comprises an elasticity rupture disk 23, described core body 6 is provided with near the end (i.e. downstream end 8) of export mouth 5 intercommunicating pore be communicated with export mouth 5 by inner chamber 10, described elasticity rupture disk 23 is fixed on intercommunicating pore and export mouth 5 in intercommunicating pore to be separated, the outside being positioned at elasticity rupture disk 23 in described intercommunicating pore is provided with and punctures structure 19, elasticity rupture disk 23 after this punctures structure 19 and distortion when inner chamber 10 exceedes safety pressure coordinates and is punctured by elasticity rupture disk 23.
And described intercommunicating pore comprises the attachment hole section 11 of wide-aperture tapped hole the section 12 and little aperture be interconnected, positioning step is formed between described tapped hole section 12 and attachment hole section 11, first pad 13 and the second pad 14 is installed in described tapped hole section 12, described elasticity rupture disk 23 is arranged between the first pad 13 and the second pad 14, tapped hole section 12 internal thread is provided with the stud 16 of band endoporus, this stud 16 compresses the first pad 13, elasticity rupture disk 23 and the second pad 14, the described structure 19 that punctures comprises spur, this spur is arranged in the endoporus of stud 16 by connecting rod 20, safe deformation spacing is there is between this spur and elasticity rupture disk 23, this spur can adopt circular cone spur or pyramid spur, and the quantity of connecting rod 20 is at least two, be preferably three, there is passage between three connecting rods 20 facilitates rock gas to pass through, when gas cylinder internal pressure increase, resiliently deformable can be there is and close to spur in elasticity rupture disk 23, when pressure increase even exceedes safety pressure to safety pressure, the amount of deformation of elasticity rupture disk 23 increases to contact with spur and produce and enough punctures pressure, like this, elasticity rupture disk 23 will break, thus achieve pressure release.
Embodiment 4
The present embodiment is identical with the basic structure of embodiment 1, just distinguishes to some extent on the first pressure relief.In the present embodiment, described first pressure relief comprises distortion sheet 21, described core body 6 is provided with the intercommunicating pore be communicated with export mouth 5 by inner chamber 10 near the end of export mouth 5, this intercommunicating pore is near the endoporus of export mouth 5 along being provided with deep gouge, and described distortion sheet 21 to be arranged in deep gouge and to compress distortion sheet 21 outer rim by clamping nut 22.The center hole of clamping nut 22 is communicated with intercommunicating pore, after sheet 21 deforms when distortion, will break away from the impaction state of clamping nut 22 thus pressure release.
The above embodiment is only the description to the preferred embodiment of the present invention; not as limiting the scope of the invention; design on the basis of spirit not departing from the present invention; the various distortion make technical solution of the present invention and transformation, all should fall in protection domain that claims of the present invention determine.
Claims (10)
1. a breaking piece for natural gas cylinder, is characterized in that: comprise housing, and one end of this housing is provided with inlet screw section, and inlet screw section is provided with entry port, the other end of housing is provided with outlet holding part, outlet holding part is provided with export mouth, the inner chamber being communicated with entry port and export mouth is set in described housing, core body is slidably fitted with in described inner chamber, this core body is provided with elastic component near between the end and housing of entry port, the outer installment external sealed face of described core body, the interior cavity wall of housing is provided with the inner sealing surface coordinated with external sealed face, the external sealed face of described core body relies on the elastic force of elastic component to coordinate with the inner sealing surface of housing, this core body is provided with and squeezes the portion of touching on the end face of export mouth, this squeezes the portion of the touching part be installed on outlet holding part and squeezes in tactile making, external sealed face is separated entry port and export mouth conducting, be provided with on described housing or on core body and prevent breaking piece chamber pressure excessive and the first pressure relief of blast.
2. the breaking piece of a kind of natural gas cylinder as claimed in claim 1, it is characterized in that: described first pressure relief comprises a rupture disk, described core body is provided with the intercommunicating pore be communicated with export mouth by inner chamber near the end of export mouth, described rupture disk is fixed in this intercommunicating pore to be separated intercommunicating pore and export mouth.
3. the breaking piece of a kind of natural gas cylinder as claimed in claim 2, it is characterized in that: described intercommunicating pore comprises the attachment hole section of wide-aperture tapped hole section and the little aperture be interconnected, positioning step is formed between described tapped hole section and attachment hole section, first pad and the second pad are installed in described tapped hole section, described rupture disk is arranged between the first pad and the second pad, tapped hole section internal thread is provided with the stud of band endoporus, and this stud compresses the first pad, rupture disk and the second pad.
4. the breaking piece of a kind of natural gas cylinder as claimed in claim 3, is characterized in that: the pressure-bearing diameter setting this rupture disk is D, and the yield strength of the material of rupture disk is P
0, maximum safety pressure is by force P
1, rupture disk thickness is H, and pressure-bearing is stressed is F, and above-mentioned parameter need meet following relation: F=P
1× S=P
1× π × (D/2)
2; H≤F/P
0/ D.
5. the breaking piece of a kind of natural gas cylinder as claimed in claim 1, it is characterized in that: described first pressure relief comprises an elasticity rupture disk, described core body is provided with the intercommunicating pore be communicated with export mouth by inner chamber near the end of export mouth, described elasticity rupture disk is fixed on intercommunicating pore and export mouth in intercommunicating pore to be separated, the outside being positioned at elasticity rupture disk in described intercommunicating pore is provided with and punctures structure, and the elasticity rupture disk after this punctures structure and distortion when inner chamber exceedes safety pressure coordinates and punctured by elasticity rupture disk.
6. the breaking piece of a kind of natural gas cylinder as claimed in claim 5, it is characterized in that: described intercommunicating pore comprises the attachment hole section of wide-aperture tapped hole section and the little aperture be interconnected, positioning step is formed between described tapped hole section and attachment hole section, first pad and the second pad are installed in described tapped hole section, described elasticity rupture disk is arranged between the first pad and the second pad, tapped hole section internal thread is provided with the stud of band endoporus, this stud compresses the first pad, elasticity rupture disk and the second pad, the described structure that punctures comprises spur, this spur is arranged in the endoporus of stud by connecting rod, safe deformation spacing is there is between this spur and elasticity rupture disk.
7. the breaking piece of a kind of natural gas cylinder as claimed in claim 1, it is characterized in that: described first pressure relief comprises distortion sheet, described core body is provided with the intercommunicating pore be communicated with export mouth by inner chamber near the end of export mouth, this intercommunicating pore is near the endoporus of export mouth along being provided with deep gouge, and described distortion sheet to be arranged in deep gouge and to compress distortion sheet outer rim by clamping nut.
8. the breaking piece of a kind of natural gas cylinder as described in any one of claim 1 to 7, is characterized in that: described breaking piece also comprises the second pressure relief, and described first pressure relief is installed on core body, and described second pressure relief is installed on housing.
9. the breaking piece of a kind of natural gas cylinder as claimed in claim 8, is characterized in that: described housing is provided with the installation screw be communicated with outside by inner chamber, is provided with swivel nut in this installation screw, described second pressure relief is installed on swivel nut.
10. the breaking piece of a kind of natural gas cylinder as claimed in claim 8, is characterized in that: described second pressure relief is identical with the structure of the first pressure relief.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520338766.0U CN204647470U (en) | 2015-05-25 | 2015-05-25 | A kind of breaking piece of natural gas cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520338766.0U CN204647470U (en) | 2015-05-25 | 2015-05-25 | A kind of breaking piece of natural gas cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204647470U true CN204647470U (en) | 2015-09-16 |
Family
ID=54100222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520338766.0U Expired - Fee Related CN204647470U (en) | 2015-05-25 | 2015-05-25 | A kind of breaking piece of natural gas cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204647470U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104864138A (en) * | 2015-05-25 | 2015-08-26 | 邬子健 | Safe connector for natural gas bottle |
-
2015
- 2015-05-25 CN CN201520338766.0U patent/CN204647470U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104864138A (en) * | 2015-05-25 | 2015-08-26 | 邬子健 | Safe connector for natural gas bottle |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150916 Termination date: 20160525 |