CN219588707U - High-pressure IV type bottle sealing structure capable of being sealed efficiently - Google Patents
High-pressure IV type bottle sealing structure capable of being sealed efficiently Download PDFInfo
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- CN219588707U CN219588707U CN202320707508.XU CN202320707508U CN219588707U CN 219588707 U CN219588707 U CN 219588707U CN 202320707508 U CN202320707508 U CN 202320707508U CN 219588707 U CN219588707 U CN 219588707U
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- bottle
- hole
- seal
- sealing
- valve seat
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- 238000007789 sealing Methods 0.000 title claims abstract description 62
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 26
- 239000003292 glue Substances 0.000 claims abstract description 22
- 238000001746 injection moulding Methods 0.000 abstract description 10
- 238000001175 rotational moulding Methods 0.000 abstract description 9
- 229920001903 high density polyethylene Polymers 0.000 abstract description 7
- 239000000243 solution Substances 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 3
- 229920003023 plastic Polymers 0.000 abstract description 2
- 239000004033 plastic Substances 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 4
- 239000000835 fiber Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229910000851 Alloy steel Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/32—Hydrogen storage
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- Closures For Containers (AREA)
Abstract
The utility model discloses a high-pressure IV-type bottle sealing structure with high sealing efficiency, which comprises an inner container, a bottle valve seat, an end plug and a sealing ring; in the structure, the condition that the sealing failure is caused by outward pressure deformation of the inner container when the inner container is subjected to internal pressure is avoided, and the high-pressure sealing can be effectively realized through plane sealing and radial sealing; in the rotational molding or injection molding process, holes are formed in the reinforcing ring in consideration of the problem of glue solution fluidity so as to ensure that the glue solution can flow into a target position; the reinforcing ring is added on the bottle valve seat to ensure that the plastic at the plane sealing position is not deformed when the bottle valve seat is subjected to internal pressure, so as to ensure the effectiveness of sealing; as long as the flatness and roughness of the plane are ensured, the high-efficiency sealing condition can be met, other sealing structures are required to ensure the flatness and roughness, and the concentricity among the end plug, the bottle valve seat, the plastic liner, the full material of the plastic liner and the like are ensured.
Description
Technical Field
The utility model relates to the technical field of high-pressure gas storage equipment, in particular to a high-pressure IV type bottle sealing structure with high sealing efficiency.
Background
At present, the high-pressure IV type bottle needs to solve the problems of a sealing structure of the inner container gas bottle, high requirements on the processing precision of the sealing structure and the like. There are various sealing structures in the industry at present for IV type bottles, although a scheme is successfully developed, the current sealing structure still has the risk of leakage, and the current sealing structure has extremely high requirements on the forming process and the processing precision, and also has the problems of high product stability, large deviation and high cost.
Disclosure of Invention
The utility model aims to provide a high-pressure IV-type bottle sealing structure with high-efficiency sealing, so as to solve the problems in the prior art, and the high-efficiency sealing condition can be met by only ensuring the flatness and roughness of a plane, and the high-pressure IV-type bottle sealing structure has low requirements on a forming process and processing precision, is low in cost and has a simple structure and is easy to realize.
In order to achieve the above object, the present utility model provides the following solutions:
the utility model provides a high-pressure IV-type bottle sealing structure with high sealing efficiency, which comprises an inner container, a bottle valve seat, an end plug and a sealing ring;
the bottle valve seat is sleeved outside the inner container bottle mouth and integrally formed with the inner container, and a threaded hole is formed in the bottle valve seat protruding out of the inner container bottle mouth;
the outer wall of the end plug is sequentially provided with an interference fit part, a shoulder seal part, an external thread part and a clamping part from inside to outside, the axial shoulder surface and the radial shoulder surface of the shoulder seal part are respectively provided with a radial seal groove and an axial seal groove, and the radial seal groove and the axial seal groove are internally provided with seal rings; an internal threaded hole for connecting with a valve is formed in the end plug;
the inner hole of the bottle mouth of the inner container is sequentially provided with an interference fit hole and a seal hole from inside to outside, and the aperture of the interference fit hole is smaller than that of the seal hole, so that a hole shoulder matched with the shoulder seal part of the end plug is formed between the interference fit hole and the seal hole;
the interference fit portion of the end plug penetrates into the bottle mouth of the inner container and is connected with the interference fit hole in an interference fit mode, the shoulder seal portion with the sealing ring is matched with the inner wall of the sealing hole and the hole bottom to achieve radial seal and axial seal, the external thread portion is in threaded connection with the threaded hole of the bottle valve seat, and the clamping portion is clamped on the outer end face of the bottle valve seat.
Preferably, a circle of annular limiting groove is formed in the outer wall of the bottle mouth at the periphery of the interference fit hole, a circle of reinforcing ring is arranged at the inner end of the hole cavity of the bottle valve seat, the reinforcing ring is embedded in the limiting groove, and a plurality of glue leakage holes are formed in the reinforcing ring.
Preferably, the hole diameter of the glue leakage holes is smaller than half the width of the reinforcing ring, the glue leakage holes are circumferentially uniformly distributed on the reinforcing ring, and the number of the glue leakage holes is smaller than 20.
Preferably, the bottle valve seat comprises a seat disc and a seat post, the seat disc is located at the inner side of the seat post, the seat disc is integrally formed on the outer wall of the inner container at the periphery of the bottle opening, the seat post is sleeved outside the bottle opening, the threaded hole is formed at the outer end of the hole of the inner hole of the seat post, and the reinforcing ring is arranged at the inner end of the hole of the inner hole of the seat post.
Preferably, a circle of annular protrusions are further arranged on the outer wall of the seat post of the bottle valve seat.
Compared with the prior art, the utility model has the following beneficial technical effects:
1. the high-pressure IV type bottle sealing structure with high sealing efficiency is simple in structure and easy to realize, and can effectively realize high-pressure sealing through plane sealing and radial sealing in consideration of the condition that sealing failure is avoided due to outward pressure deformation of the liner when the liner is subjected to internal pressure; in the rotational molding or injection molding process, holes are formed in the reinforcing ring in consideration of the problem of glue solution fluidity so as to ensure that the glue solution can flow into a target position; the reinforcing ring is added on the bottle valve seat to ensure that the plastic at the plane sealing position is not deformed when the bottle valve seat is subjected to internal pressure, so as to ensure the effectiveness of sealing;
2. the high-efficiency sealing structure of the high-pressure IV type bottle can meet the high-efficiency sealing condition as long as the flatness and the roughness of the plane are ensured, other sealing structures are required to ensure the flatness and the roughness, and the concentricity among the end plug, the bottle valve seat and the plastic liner, the full material of the plastic liner and the like are ensured.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a high pressure IV type bottle seal configuration of the present utility model with an efficient seal;
FIG. 2 is a schematic view of the structure of the valve seat of the bottle according to the present utility model;
FIG. 3 is a schematic perspective view of a bottle valve seat according to the present utility model;
fig. 4 is a schematic view of the structure of an end plug according to the present utility model;
fig. 5 is a schematic perspective view of an end plug according to the present utility model;
FIG. 6 is a schematic view of the structure of the liner neck finish of the present utility model;
in the figure: 1-inner container, 11-inner container bottleneck, 12-interference fit hole, 13-sealing hole, 14-spacing groove, 2-bottle valve seat, 21-screw hole, 22-reinforcing ring, 23-glue leakage hole, 24-seat disk, 25-seat post, 26-annular bulge, 3-end plug, 31-interference fit portion, 32-shoulder sealing portion, 33-external screw thread portion, 34-clamping portion, 35-radial seal groove, 36-axial seal groove and 4-seal ring.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model aims to provide a high-pressure IV-type bottle sealing structure capable of sealing efficiently, so as to solve the problems in the prior art.
In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description.
The high-pressure IV type bottle sealing structure with high sealing efficiency in the embodiment comprises a liner 1, a bottle valve seat 2, an end plug 3 and a sealing ring 4 as shown in fig. 1-6;
the bottle valve seat 2 is sleeved outside the inner container bottle mouth 11 and is integrally formed with the inner container 1, and a threaded hole 21 is formed in the interior of the body, protruding out of the inner container bottle mouth 11, of the bottle valve seat 2; the inner container 1 is formed by adopting a rotational molding or injection molding process, in the forming process, the bottle valve seat 2 is put into a specific mold, and the inner container 1 is connected with the bottle valve seat 2 after the rotational molding or injection molding is finished;
the outer wall of the end plug 3 is sequentially provided with an interference fit part 31, a shoulder seal part 32, an external thread part 33 and a clamping part 34 from inside to outside, the axial shoulder surface and the radial shoulder surface of the shoulder seal part 32 are respectively provided with a radial seal groove 35 and an axial seal groove 36, and the radial seal groove 35 and the axial seal groove 36 are internally provided with a seal ring 4; the interior of the end plug 3 is provided with an internal threaded hole for connection with a valve;
the inner hole of the bottle mouth 11 of the inner container is sequentially provided with an interference fit hole 12 and a seal hole 13 from inside to outside, the aperture of the interference fit hole 12 is smaller than that of the seal hole 13, and a hole shoulder matched with a shoulder seal part 32 of the end plug 3 is formed between the interference fit hole 12 and the seal hole 13;
the interference fit part 31 of the end plug 3 goes deep into the bottle mouth 11 of the inner container and is in interference fit connection with the interference fit hole 12, the shoulder seal part 32 with the seal ring 4 is matched with the inner wall and the bottom of the seal hole 13 to realize radial seal and axial seal, the external thread part 33 is in threaded connection with the threaded hole 21 of the bottle valve seat 2, and the clamping part 34 is clamped on the outer end face of the bottle valve seat 2.
In the embodiment, the end plug 3 is mechanically connected with the bottle valve seat 2 through threads, and the gas is ensured not to leak through axial and radial sealing; the end plug 3 is in interference fit with the liner 1 (the interference rate is smaller than the maximum deformation value of the plastic liner 1 in the elastic stage), so that the integrity of the plastic liner 1, the bottle valve seat 2 and the end plug 3 is further improved; when the gas cylinder is filled with gas, the gas cylinder has a tendency to expand outwards, so that the outer side and the periphery of the valve seat 2 of the gas cylinder can expand, in this case, the sealing ring 4 between the liner 1 and the end plug 3 can be compressed, and the larger the stress is, the more the compression is, and the better the sealing effect is; even if leakage occurs, the radial seal provides a second path of protection, further improving the gas tightness; because the plane seal between the liner 1 and the end plug 3 is realized, the sealing requirement can be met as long as the flatness of the sealing surface is ensured and the material is sufficient; the structure has low requirements on the concentricity of the valve seat and the processing progress of the end plug 3, and can further improve the consistency of the performance of the gas cylinder.
In this embodiment, the external threads of the plug 3 are threaded with the bottle valve seat 2, and the internal threads of the plug 3 may be 1.125, 1.25, 1.5, 2 inch threads, depending on the size of the valve to which the internal threads are coupled.
In the embodiment, a circle of annular limiting groove 14 is arranged on the outer wall of the bottle mouth at the periphery of the interference fit hole 12, a circle of reinforcing ring 22 is arranged at the inner end of the hole cavity of the bottle valve seat 2, the reinforcing ring 22 is embedded in the limiting groove 14, and a plurality of glue leakage holes 23 are arranged on the reinforcing ring 22; the reinforcing ring 22 can prevent the end plug 3 from being displaced greatly with the liner 1 when the sealing ring 4 is sealed in a plane, so as to provide supporting force for the plane sealing surface of the liner 1 and avoid deformation; the problem of glue flowing during rotational molding or injection molding is considered in the design of the bottle valve seat 2, and the glue leakage holes 23 are added on the reinforcing ring 22, so that glue circulation is facilitated, and the molding qualification rate of products is improved. The diameter of the glue leakage hole 23 is smaller than half of the width of the reinforcing ring 22 so as to ensure the strength of the reinforcing ring 22; the glue leakage holes 23 are circumferentially uniformly distributed on the reinforcing ring 22, and the number of the glue leakage holes 23 is less than 20, so that the strength of the reinforcing ring 22 is prevented from being influenced.
In this embodiment, the bottle valve seat 2 includes a seat plate 24 and a seat post 25, the seat plate 24 is located at the inner side of the seat post 25, the seat plate 24 is integrally formed on the outer wall of the liner 1 at the periphery of the liner bottle mouth 11, the seat post 25 is sleeved outside the liner bottle mouth 11, the threaded hole 21 is disposed at the outer end of the inner hole of the seat post 25, and the reinforcing ring 22 is disposed at the inner end of the inner hole of the seat post 25. The outer wall of the seat post 25 of the bottle valve seat 2 is also provided with a ring of annular projections 26. When the fiber is wound, the fiber covers the annular bulge 26, the longitudinal tensioning effect of the fiber is enhanced, the whole inner container 1 and the fiber layer are integrally deformed under the stress condition, and the relative displacement of the bottle valve seat 2, the inner container 1 and the end plug 3 is not generated.
In this embodiment, the liner 1 is made of HDPE or PA nylon; the bottle valve seat 2 and the end plug 3 are made of 4130X alloy steel or 316L alloy steel or T6061 aluminum alloy. The sealing ring 4 is made of nitrile rubber or other high-pressure sealing materials.
The manufacturing process of the high-efficiency sealed high-pressure IV-type bottle sealing structure in the embodiment comprises the following steps:
1) Separately processing a bottle valve seat 2 and an end plug 3 for standby;
2) When the inner container 1 is subjected to rotational molding or injection molding, the bottle valve seat 2 is placed at a rotational molding or injection molding fixed placement position for rotational molding or injection molding;
3) In the rotational molding or injection molding process, the glue injection saturation of the joint of the liner 1 and the bottle valve seat 2 is ensured through the gap between the bottle valve seat 2 and the mold and the glue leakage holes 23 uniformly distributed on the bottle valve seat 2, so that the structural strength and the sealing effect of the liner 1 and the bottle valve seat 2 after injection molding are ensured;
4) After molding, running pins are carried out on the liner 1, so that the flatness and the smoothness of the sealing surface at the sealing hole 13 are ensured;
5) The radial seal groove 35 and the axial seal groove 36 of the shoulder seal part 32 of the end plug 3 are internally provided with the seal ring 4, and the seal ring is mounted on the liner 1 with the bottle valve seat 2, thereby realizing the manufacturing of the liner 1 of the IV type bottle with high efficiency seal.
The principles and embodiments of the present utility model have been described with reference to specific examples, which are intended to be illustrative only of the process and its core ideas; also, it is within the scope of the present utility model to be modified by those of ordinary skill in the art in light of the present teachings. In summary, the present description should not be construed as limiting the utility model.
Claims (5)
1. High-efficient sealed high pressure IV type bottle seal structure, its characterized in that: comprises an inner container, a bottle valve seat, an end plug and a sealing ring;
the bottle valve seat is sleeved outside the inner container bottle mouth and integrally formed with the inner container, and a threaded hole is formed in the bottle valve seat protruding out of the inner container bottle mouth;
the outer wall of the end plug is sequentially provided with an interference fit part, a shoulder seal part, an external thread part and a clamping part from inside to outside, the axial shoulder surface and the radial shoulder surface of the shoulder seal part are respectively provided with a radial seal groove and an axial seal groove, and the radial seal groove and the axial seal groove are internally provided with seal rings; an internal threaded hole for connecting with a valve is formed in the end plug;
the inner hole of the bottle mouth of the inner container is sequentially provided with an interference fit hole and a seal hole from inside to outside, and the aperture of the interference fit hole is smaller than that of the seal hole, so that a hole shoulder matched with the shoulder seal part of the end plug is formed between the interference fit hole and the seal hole;
the interference fit portion of the end plug penetrates into the bottle mouth of the inner container and is connected with the interference fit hole in an interference fit mode, the shoulder seal portion with the sealing ring is matched with the inner wall of the sealing hole and the hole bottom to achieve radial seal and axial seal, the external thread portion is in threaded connection with the threaded hole of the bottle valve seat, and the clamping portion is clamped on the outer end face of the bottle valve seat.
2. The high pressure IV bottle seal arrangement of claim 1, wherein: the bottle is characterized in that a circle of annular limiting groove is formed in the outer wall of the bottle mouth at the periphery of the interference fit hole, a circle of reinforcing ring is arranged at the inner end of the hole cavity of the bottle valve seat, the reinforcing ring is embedded in the limiting groove, and a plurality of glue leakage holes are formed in the reinforcing ring.
3. The high pressure IV bottle seal arrangement of claim 2, wherein: the aperture of the glue leakage holes is smaller than half of the width of the reinforcing ring, the glue leakage holes are circumferentially uniformly distributed on the reinforcing ring, and the number of the glue leakage holes is smaller than 20.
4. The high pressure IV bottle seal arrangement of claim 2, wherein: the bottle valve seat comprises a seat disc and a seat post, wherein the seat disc is positioned at the inner side of the seat post, the seat disc is integrally formed on the outer wall of the inner container at the periphery of the bottle opening of the inner container, the seat post is sleeved outside the bottle opening of the inner container, the threaded hole is formed at the outer end of the hole of the inner hole of the seat post, and the reinforcing ring is arranged at the inner end of the hole of the inner hole of the seat post.
5. The high pressure IV bottle seal arrangement of claim 4, wherein: the outer wall of the seat post of the bottle valve seat is also provided with a circle of annular bulges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320707508.XU CN219588707U (en) | 2023-04-03 | 2023-04-03 | High-pressure IV type bottle sealing structure capable of being sealed efficiently |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320707508.XU CN219588707U (en) | 2023-04-03 | 2023-04-03 | High-pressure IV type bottle sealing structure capable of being sealed efficiently |
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| Publication Number | Publication Date |
|---|---|
| CN219588707U true CN219588707U (en) | 2023-08-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320707508.XU Active CN219588707U (en) | 2023-04-03 | 2023-04-03 | High-pressure IV type bottle sealing structure capable of being sealed efficiently |
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| CN (1) | CN219588707U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117028841A (en) * | 2023-04-03 | 2023-11-10 | 中材科技（苏州）有限公司 | High-pressure IV-type bottle sealing structure capable of being sealed efficiently and manufacturing process thereof |
-
2023
- 2023-04-03 CN CN202320707508.XU patent/CN219588707U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117028841A (en) * | 2023-04-03 | 2023-11-10 | 中材科技（苏州）有限公司 | High-pressure IV-type bottle sealing structure capable of being sealed efficiently and manufacturing process thereof |
| WO2024207595A1 (en) * | 2023-04-03 | 2024-10-10 | 中材科技（苏州）有限公司 | Efficient sealing structure for high-pressure iv-type cylinder, and manufacturing process therefor |
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