CN111076086A - Full-winding plastic inner container composite gas cylinder, bottle opening connecting structure and bottle nozzle - Google Patents
Full-winding plastic inner container composite gas cylinder, bottle opening connecting structure and bottle nozzle Download PDFInfo
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- CN111076086A CN111076086A CN202010031619.4A CN202010031619A CN111076086A CN 111076086 A CN111076086 A CN 111076086A CN 202010031619 A CN202010031619 A CN 202010031619A CN 111076086 A CN111076086 A CN 111076086A
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- nozzle
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- 229920003023 plastic Polymers 0.000 title claims abstract description 53
- 239000004033 plastic Substances 0.000 title claims abstract description 53
- 239000002131 composite material Substances 0.000 title claims abstract description 35
- 238000004804 winding Methods 0.000 title claims abstract description 10
- 229920001903 high density polyethylene Polymers 0.000 claims abstract description 31
- 150000001875 compounds Chemical class 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 21
- 229910052751 metal Inorganic materials 0.000 abstract description 15
- 239000002184 metal Substances 0.000 abstract description 15
- 238000000926 separation method Methods 0.000 abstract description 4
- 238000007493 shaping process Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 38
- 230000000694 effects Effects 0.000 description 7
- 238000003466 welding Methods 0.000 description 6
- 238000000071 blow moulding Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000002519 antifouling agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000003915 liquefied petroleum gas Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/06—Closures, e.g. cap, breakable member
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
- F17C1/16—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge constructed of plastics materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2203/00—Vessel construction, in particular walls or details thereof
- F17C2203/01—Reinforcing or suspension means
- F17C2203/011—Reinforcing means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
- F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
- F17C2205/0311—Closure means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2209/00—Vessel construction, in particular methods of manufacturing
- F17C2209/21—Shaping processes
- F17C2209/2109—Moulding
- F17C2209/2127—Moulding by blowing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2209/00—Vessel construction, in particular methods of manufacturing
- F17C2209/21—Shaping processes
- F17C2209/2154—Winding
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses a mouth of a fully-wound plastic liner composite gas cylinder, which comprises: the nozzle part and the nozzle seat part are sequentially connected along the extending direction of the first air inlet through cavity; the inner wall of the nozzle opening part is provided with a limiting bulge and a first positioning groove which extend annularly, the limiting bulge is positioned on one side of the first positioning groove far away from the nozzle base part, and one end of the nozzle base part far away from the nozzle opening part is provided with a second positioning groove which extends annularly. Through the bottle neck of the compound gas cylinder of above-mentioned full winding plastics inner bag of optimal design, through set up the constant head tank on mouth portion and mouth seat portion, when inner bag winding shaping on the bottle neck, the bonding strength between plastics inner bag and the bottle neck is strengthened greatly, has guaranteed that the gas cylinder avoids appearing plastics and metal separation's problem when filling the dress repeatedly, avoids gaseous along the bonding interface emergence leakage between bottle neck and the inner bag. The invention also discloses a fully-wound plastic liner composite gas cylinder and a cylinder opening connecting structure.
Description
Technical Field
The invention relates to the technical field of storage and transportation of compressed gas and liquefied gas, in particular to a fully-wound plastic liner composite gas cylinder, a cylinder opening connecting structure and a cylinder nozzle.
Background
At present, three main types of compressed gas storage gas cylinders in the market are steel cylinders; secondly, the glass fiber ring of the steel inner container is wound on the composite gas cylinder, and thirdly, the aluminum alloy inner container is fully wound on the composite gas cylinder; in addition, the liquefied petroleum gas is stored by a steel cylinder; the inner containers of the gas cylinders are all metal inner containers; the metal liner has the defects of complex forming process, heavy weight, inconvenient transportation, easy corrosion, explosion accidents in the use process and the like, and the fiber fully-wound plastic liner composite gas cylinder has the excellent performances of light weight, high strength, corrosion resistance, perspective, long service life, low maintenance cost and the like, and has wide application prospect in replacing the traditional steel cylinder with the metal liner.
Because of the needs of intensity and rigidity, the bottleneck of full winding plastics inner bag needs to adopt the metal material design, the bottleneck connection structure of plastics inner bag among some patent technologies at present: one is to adopt the blow molding process to form the plastic inner container, wrap the metalwork in the plastic and form together with the inner container when the bottleneck of the inner container is formed, form the airtight inner container without weld joint, secondly, adopt the injection molding process to wrap the metalwork in the plastic and then connect to the inner container in a welding way, form the airtight container; because the second method adopts a welding mode, a welding seam can be formed at the position of the opening of the inner container, so the welding seam can also become a leakage point of the gas cylinder, and a plurality of gas cylinder leakage events caused by welding exist internationally at present; although the first mode adopts integral forming without welding, the plastic and the metal are connected infirm due to the fact that the metal and the plastic are directly wrapped, and leakage is easily caused due to layering of the two materials.
Disclosure of Invention
In order to solve the technical problems in the background technology, the invention provides a fully-wound plastic liner composite gas cylinder, a cylinder opening connecting structure and a cylinder nozzle.
The invention provides a bottle nozzle of a fully-wound plastic inner container composite gas bottle, which comprises an outer nozzle body, wherein a first through cavity is arranged in the outer nozzle body, and the outer nozzle body comprises: the nozzle part and the nozzle seat part are sequentially connected along the extending direction of the first air inlet through cavity;
the inner wall of the nozzle opening part is provided with a limiting bulge and a first positioning groove which extend annularly, the limiting bulge is positioned on one side of the first positioning groove far away from the nozzle base part, and one end of the nozzle base part far away from the nozzle opening part is provided with a second positioning groove which extends annularly.
Preferably, the first positioning groove is a dovetail groove;
and/or the second positioning groove is a dovetail groove.
Preferably, one side of the limiting protrusion, which faces the first positioning groove, is provided with a limiting groove extending annularly.
Preferably, the outer edge of the nozzle base part is provided with a third positioning groove which extends annularly.
The invention provides a mouth of a fully-wound plastic liner composite gas cylinder, which comprises: the nozzle part and the nozzle seat part are sequentially connected along the extending direction of the first air inlet through cavity; the inner wall of the nozzle opening part is provided with a limiting bulge and a first positioning groove which extend annularly, the limiting bulge is positioned on one side of the first positioning groove far away from the nozzle base part, and one end of the nozzle base part far away from the nozzle opening part is provided with a second positioning groove which extends annularly. Through the bottle neck of the compound gas cylinder of above-mentioned full winding plastics inner bag of optimal design, through set up the constant head tank on mouth portion and mouth seat portion, when inner bag winding shaping on the bottle neck, the bonding strength between plastics inner bag and the bottle neck is strengthened greatly, has guaranteed that the gas cylinder avoids appearing plastics and metal separation's problem when filling the dress repeatedly, avoids gaseous along the bonding interface emergence leakage between bottle neck and the inner bag.
The invention also provides a bottle mouth connecting structure of the fully-wound plastic liner composite gas bottle, which comprises a plastic inner nozzle body and the outer nozzle body;
the plastic inner nozzle body is provided with a second through cavity extending along the direction of the first through cavity, the plastic inner nozzle body comprises a connecting part and a connecting seat part which are sequentially connected along the direction of the second air inlet through cavity, the connecting part is positioned in the nozzle part, one end, far away from the connecting seat part, of the connecting seat part abuts against the limiting bulge, and the connecting seat part is positioned on one side, far away from the nozzle part, of the nozzle seat part;
the outer wall of the connecting interface part is provided with a first positioning bulge matched with the first positioning groove, and one side of the connecting interface part, which is close to the connecting interface part, is provided with a second positioning bulge matched with the second positioning groove.
Preferably, the device further comprises a converter, one end of the converter penetrates through the first through cavity from one side far away from the plastic inner nozzle body and extends into the second through cavity, and a first sealing ring in sealing fit with the second through cavity is arranged on the outer wall of the converter;
preferably, the outer wall of the transducer is provided with an annular mounting groove for receiving the first sealing ring.
Preferably, the converter outer wall is equipped with annular step, annular step is located spacing protruding one side of keeping away from first constant head tank, just be equipped with the second sealing washer between annular step and the spacing arch.
Preferably, first logical chamber is equipped with the internal thread, and the converter outer wall is equipped with the external screw thread, the converter with outer nozzle body screw-thread fit.
Preferably, the converter is kept away from mouth body one end in the plastics and is equipped with the limiting plate, and the limiting plate is located outer mouth body and keeps away from mouth body one side in the plastics, is equipped with the third sealing washer between limiting plate and the outer mouth body.
According to the invention, the technical effect of the fully-wound plastic liner composite gas cylinder opening connecting structure is similar to that of the cylinder nozzle; bottleneck connection structure realizes with outside gas access through further increasing the converter structure to through the optimal design of converter structure, improve the sealed effect between the mouth body in converter and bottle neck, the plastics greatly, effectively guaranteed that the bottleneck can not take place to reveal in highly compressed condition.
The invention also provides a fully-wound plastic liner composite gas cylinder which comprises the bottle opening connecting structure.
In the invention, the technical effect of the fully-wound plastic liner composite gas cylinder provided is similar to that of the bottle opening connecting structure, and the description is omitted.
Drawings
Fig. 1 is a schematic structural diagram of a mouth of a fully-wrapped plastic liner composite gas cylinder provided by the invention.
Fig. 2 is a schematic structural diagram of a bottle mouth connecting structure of the fully-wound plastic liner composite gas cylinder provided by the invention.
Fig. 3 is a schematic structural view of another bottleneck connecting structure of the fully-wound plastic liner composite gas cylinder provided by the invention.
Detailed Description
As shown in fig. 1 to 3, fig. 1 is a schematic structural view of a mouth of a fully-wrapped plastic liner composite gas cylinder according to the present invention, fig. 2 is a schematic structural view of a mouth connecting structure of a fully-wrapped plastic liner composite gas cylinder according to the present invention, and fig. 3 is a schematic structural view of another mouth connecting structure of a fully-wrapped plastic liner composite gas cylinder according to the present invention.
Referring to fig. 1, the mouth of the fully-wrapped plastic liner composite gas cylinder provided by the invention comprises an outer mouth body 1, wherein a first through cavity is arranged in the outer mouth body 1, and the mouth body 1 is characterized by comprising: a nozzle part 11 and a nozzle seat part 12 which are connected in sequence along the extending direction of the first air inlet through cavity;
the inner wall of the mouth part 11 is provided with a limiting protrusion 111 and a first positioning groove 112 which extend in an annular manner, the limiting protrusion 111 is located on one side of the mouth part 12 away from the first positioning groove 112, and the mouth part 12 is away from one end of the mouth part 11 and is provided with a second positioning groove 121 which extends in an annular manner.
In this embodiment, the proposed fully-wrapped plastic liner composite gas cylinder, bottle mouth connection structure and bottle mouth include: the nozzle part and the nozzle seat part are sequentially connected along the extending direction of the first air inlet through cavity; the inner wall of the nozzle opening part is provided with a limiting bulge and a first positioning groove which extend annularly, the limiting bulge is positioned on one side of the first positioning groove far away from the nozzle base part, and one end of the nozzle base part far away from the nozzle opening part is provided with a second positioning groove which extends annularly. Through the bottle neck of the compound gas cylinder of above-mentioned full winding plastics inner bag of optimal design, through set up the constant head tank on mouth portion and mouth seat portion, when inner bag winding shaping on the bottle neck, the bonding strength between plastics inner bag and the bottle neck is strengthened greatly, has guaranteed that the gas cylinder avoids appearing plastics and metal separation's problem when filling the dress repeatedly, avoids gaseous along the bonding interface emergence leakage between bottle neck and the inner bag.
Referring to fig. 2, the embodiment further provides a bottle mouth connecting structure of a fully-wound plastic liner composite gas cylinder, which comprises a plastic inner nozzle body 2 and the outer nozzle body 1;
a second through cavity extending along the first through cavity direction is arranged on the plastic inner nozzle body 2, the plastic inner nozzle body 2 comprises a connecting port part 21 and a connecting seat part 22 which are sequentially connected along the second air inlet through cavity direction, the connecting port part 21 is positioned inside the nozzle part 11, one end of the connecting port part 21, which is far away from the connecting seat part 22, abuts against the limiting protrusion 111, and the connecting seat part 22 is positioned on one side, which is far away from the nozzle part 11, of the nozzle part 12;
the outer wall of the connecting portion 21 is provided with a first positioning protrusion engaged with the first positioning groove 112, and one side of the connecting seat 22 close to the connecting portion 21 is provided with a second positioning protrusion engaged with the second positioning groove 121.
In the material selection of the outer nozzle body and the inner nozzle body in the embodiment, the outer nozzle body may be made of metal pieces, such as aluminum or copper, and the inner nozzle body is made of plastic material, such as high-density polyethylene or nylon.
In the concrete processing mode of the bottleneck connection structure of this embodiment, the mouth body adopts the production of blowing process in the plastics, inlay the outer mouth body in the blow molding plastics in the blow molding, be equipped with first constant head tank and second constant head tank on the outer mouth body, during blow molding, first constant head tank and second constant head tank are filled up by plastics respectively, first location arch and second location arch on the mouth body in the formation plastics, the bonding strength between plastics and the metal has been strengthened, the problem of plastics and metal separation appear when filling repeatedly to the gas cylinder has been guaranteed.
In the specific implementation mode of the bottle mouth, the outer mouth body can be produced by using a mold, and a layer of protective paint is coated immediately after the metal piece is processed, so that the oxidation of the metal piece is prevented, the bonding property of metal and plastic can be effectively improved, and the bonding strength is improved.
In the specific design of the first positioning groove and the second positioning groove, the first positioning groove 112 is a dovetail groove, and the second positioning groove 121 is a dovetail groove, so that the self-sealing effect can be achieved due to the shape of the big upper end and the small lower end of the cross section of the dovetail groove, and the gas leakage along the metal and plastic combination interface is further avoided.
In other embodiments of the bottle mouth, the limiting protrusion 111 is provided with a limiting groove 113 extending annularly towards one side of the first positioning groove 112, and when blow molding is performed, the front end of the plastic inner mouth body is formed in the limiting groove, so that the molding effect is ensured, and the bonding strength of the two is further improved.
In other specific embodiments, the top of the connecting seat portion is provided with a receiving groove, the second positioning protrusion is located in the receiving groove, the nozzle seat portion is located in the receiving groove, and the outer edge of the nozzle seat portion 12 is provided with a third positioning groove 122 extending annularly, so as to further improve the bonding strength between the nozzle seat portion and the connecting seat portion.
Referring to fig. 3, in other specific embodiments of the bottle mouth connecting structure of this embodiment, the bottle mouth connecting structure further includes a converter 3, one end of the converter 3 penetrates through the first through cavity from a side away from the plastic inner mouth body 2 and extends into the second through cavity, and a first sealing ring 4 in sealing fit with the second through cavity is arranged on an outer wall of the converter 3; preferably, the outer wall of the converter 3 is provided with an annular mounting groove for housing the first sealing ring 4; the converter is installed at the internal portion of outer nozzle body and interior nozzle body, through the sealed cooperation of the inner wall of first sealing washer and the interior nozzle body of plastics, realizes sealed one.
In a specific installation mode of the converter, the first through cavity is provided with internal threads, the outer wall of the converter 3 is provided with external threads, and the converter 3 is in threaded fit with the outer nozzle body 1; the converter and the bottle mouth are convenient to install, and the installation reliability is guaranteed.
In other specific embodiments, the outer wall of the converter 3 is provided with an annular step, the annular step is located on one side of the limiting protrusion 111 away from the first positioning groove 112, and the second sealing ring 5 is arranged between the annular step and the limiting protrusion 111; the converter passes through the spacing protruding sealed cooperation of second sealing washer with first logical intracavity wall, realizes twice sealedly.
In another specific embodiment, a limiting plate 31 is arranged at one end of the converter 3 away from the plastic inner nozzle body 2, the limiting plate 31 is positioned at one side of the outer nozzle body 1 away from the plastic inner nozzle body 2, and a third sealing ring 6 is arranged between the limiting plate 31 and the outer nozzle body 1; and a limiting plate of the converter is in sealing fit with one end of the nozzle part through a third sealing ring, so that three sealing steps are realized.
The technical effect of the bottle mouth connecting structure of the fully-wound plastic liner composite gas bottle is similar to that of the bottle mouth. Bottleneck connection structure realizes with outside gas access through further increasing the converter structure to through the optimal design of converter structure, improve the sealed effect between the mouth body in converter and bottle neck, the plastics greatly, effectively guaranteed that the bottleneck can not take place to reveal in highly compressed condition.
The embodiment also provides a fully-wound plastic liner composite gas cylinder which comprises the bottle opening connecting structure, wherein the plastic inner nozzle body is arranged on the plastic liner.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. The utility model provides a bottle neck of compound gas cylinder of full winding plastics inner bag, includes outer nozzle body (1), the inside first logical chamber that is equipped with of outer nozzle body (1), its characterized in that, outer nozzle body (1) includes: a nozzle part (11) and a nozzle seat part (12) which are connected in sequence along the extending direction of the first air inlet through cavity;
mouth portion (11) inner wall is equipped with spacing arch (111) and first constant head tank (112) that the annular extends, and spacing arch (111) are located first constant head tank (112) are kept away from mouth portion (12) one side, mouth portion (12) are kept away from mouth portion (11) one end is equipped with second constant head tank (121) that the annular extends.
2. The mouth of the fully-wrapped plastic liner composite gas cylinder as claimed in claim 1, wherein the first positioning groove (112) is a dovetail groove;
and/or the second positioning groove (121) is a dovetail groove.
3. The mouth of the fully-wrapped plastic liner composite gas cylinder as claimed in claim 1, wherein a limit groove (113) extending annularly is formed in one side of the limit protrusion (111) facing the first limit groove (112).
4. The mouth of the fully wrapped plastic liner composite gas cylinder according to claim 1, characterized in that the outer edge of the mouth seat part (12) is provided with a third positioning groove (122) which extends annularly.
5. A bottle mouth connecting structure of a fully-wound plastic liner composite gas cylinder, which is characterized by comprising a plastic inner nozzle body (2) and an outer nozzle body (1) according to any one of claims 1 to 4;
a second through cavity extending along the first through cavity direction is formed in the plastic inner nozzle body (2), the plastic inner nozzle body (2) comprises a connecting port part (21) and a connecting seat part (22) which are sequentially connected along the second air inlet through cavity direction, the connecting port part (21) is located in the nozzle part (11), one end, far away from the connecting seat part (22), of the connecting port part (21) abuts against the limiting protrusion (111), and the connecting seat part (22) is located on one side, far away from the nozzle part (11), of the nozzle part (12);
the outer wall of the connecting interface part (21) is provided with a first positioning bulge matched with the first positioning groove (112), and one side of the connecting seat part (22) close to the connecting interface part (21) is provided with a second positioning bulge matched with the second positioning groove (121).
6. The mouth connecting structure of the fully-wrapped plastic liner composite gas cylinder according to claim 5, further comprising a converter (3), wherein one end of the converter (3) penetrates through the first through cavity from the side far away from the plastic inner nozzle body (2) and extends into the second through cavity, and a first sealing ring (4) in sealing fit with the second through cavity is arranged on the outer wall of the converter (3);
preferably, the outer wall of the converter (3) is provided with an annular mounting groove for accommodating the first sealing ring (4).
7. The mouth connecting structure of the fully-wrapped plastic liner composite gas cylinder according to claim 6, wherein an annular step is arranged on the outer wall of the converter (3), the annular step is positioned on one side of the limiting protrusion (111) far away from the first positioning groove (112), and a second sealing ring (5) is arranged between the annular step and the limiting protrusion (111).
8. The bottle mouth connecting structure of the fully-wound plastic inner container composite gas cylinder as claimed in claim 6, wherein the first through cavity is provided with internal threads, the outer wall of the converter (3) is provided with external threads, and the converter (3) is in threaded fit with the outer nozzle body (1).
9. The mouth connecting structure of the fully-wrapped plastic liner composite gas cylinder according to claim 6, wherein a limiting plate (31) is arranged at one end of the converter (3) away from the plastic inner nozzle body (2), the limiting plate (31) is positioned at one side of the outer nozzle body (1) away from the plastic inner nozzle body (2), and a third sealing ring (6) is arranged between the limiting plate (31) and the outer nozzle body (1).
10. A fully wrapped plastic liner composite gas cylinder, characterized by comprising a mouthpiece connecting structure according to any one of claims 5 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010031619.4A CN111076086A (en) | 2020-01-13 | 2020-01-13 | Full-winding plastic inner container composite gas cylinder, bottle opening connecting structure and bottle nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010031619.4A CN111076086A (en) | 2020-01-13 | 2020-01-13 | Full-winding plastic inner container composite gas cylinder, bottle opening connecting structure and bottle nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111076086A true CN111076086A (en) | 2020-04-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010031619.4A Pending CN111076086A (en) | 2020-01-13 | 2020-01-13 | Full-winding plastic inner container composite gas cylinder, bottle opening connecting structure and bottle nozzle |
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| CN (1) | CN111076086A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115949879A (en) * | 2022-09-28 | 2023-04-11 | 湖北三江航天江北机械工程有限公司 | Gas cylinder with plastic liner and fully wound with fibers |
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| US20180003341A1 (en) * | 2016-06-29 | 2018-01-04 | Hyundai Motor Company | High-pressure composite container having gastight nozzle structure |
| CN208397697U (en) * | 2018-05-07 | 2019-01-18 | 安徽绿动能源有限公司 | Wind the converter of plastic inner container bottle mouth of gas cylinder entirely for fiber |
| CN212537502U (en) * | 2020-01-13 | 2021-02-12 | 安徽绿动能源有限公司 | Full-winding plastic inner container composite gas cylinder, bottle opening connecting structure and bottle nozzle |
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2020
- 2020-01-13 CN CN202010031619.4A patent/CN111076086A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080251520A1 (en) * | 2007-04-06 | 2008-10-16 | Toyoda Gosei Co., Ltd. | Pressure vessel |
| US20180003341A1 (en) * | 2016-06-29 | 2018-01-04 | Hyundai Motor Company | High-pressure composite container having gastight nozzle structure |
| CN107543026A (en) * | 2016-06-29 | 2018-01-05 | 现代自动车株式会社 | High-pressure composite containers with airtight nozzle arrangements |
| CN106838602A (en) * | 2017-01-19 | 2017-06-13 | 安徽绿动能源有限公司 | A kind of metal bottleneck structure and LPG gas cylinders |
| CN208397697U (en) * | 2018-05-07 | 2019-01-18 | 安徽绿动能源有限公司 | Wind the converter of plastic inner container bottle mouth of gas cylinder entirely for fiber |
| CN212537502U (en) * | 2020-01-13 | 2021-02-12 | 安徽绿动能源有限公司 | Full-winding plastic inner container composite gas cylinder, bottle opening connecting structure and bottle nozzle |
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