CN201152454Y - Gas cylinder filling sealing structure - Google Patents
Gas cylinder filling sealing structure Download PDFInfo
- Publication number
- CN201152454Y CN201152454Y CNU2007201750941U CN200720175094U CN201152454Y CN 201152454 Y CN201152454 Y CN 201152454Y CN U2007201750941 U CNU2007201750941 U CN U2007201750941U CN 200720175094 U CN200720175094 U CN 200720175094U CN 201152454 Y CN201152454 Y CN 201152454Y
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- screw propulsion
- cone seal
- inlet hole
- hole
- gas cylinder
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Abstract
The utility model discloses a gas cylinder inflation seal structure which is composed of an inflation interface, as well as a connecting hole and a gas inlet hole which are opened and arranged from outside to inside along the direction of shaft line of a gas cylinder neck. The connecting hole and the gas inlet hole are mutually communicated to form a step-shaped through hole with big outside and small inside, the gas inlet hole is communicated with an inner cavity of a gas cylinder, and a spiral compression sealing mechanism is installed in the connecting hole in a screwed way. The spiral compression sealing mechanism is composed of a spiral pushing body which is installed on the connecting hole in a screwed way, and a conical sealing body which is installed in the connecting hole in a penetrating way. A conical tip of the conical sealing body can be inserted into the gas inlet hole, and an inflation channel which can cause the inflation interface and the gas inlet hole to be communicated is arranged between the conical sealing body and the inner wall of the connecting hole. Under the unscrewed condition of the spiral pushing body, the inflation channel is communicated with the inflation interface and the gas inlet hole. Under the screwed condition of the spiral pushing body, the conical tip of the conical sealing body is pushed into the gas inlet hole, and forms sealing match with the opening of the gas inlet hole along the crimping. Circumference seal is arranged outsides the inflation channel between the spiral compression sealing mechanism and the inner wall of the connecting hole.
Description
Technical field
The utility model relates to a kind of gas cylinder, especially the gas-flow closure structure of gas cylinder bottleneck.
Background technique
All gas cylinders all have inflation, sealing and air bleed technique, at present, the gas cylinder of repeated use type generally adopts both at home and abroad to be installed various types of pneumatic valves at the gas cylinder mouth and finishes inflation, the working procedure of sealing and venting, and the gas cylinder of nonrecoverable version generally adopts separate type to realize inflation respectively, sealing and venting, typical structure as shown in Figure 1, ecto-entad is provided with attachment hole and inlet hole on gas cylinder bottleneck axis, attachment hole and inlet hole communicate with one another form outer big in little stepped shape through hole, inlet hole and gas cylinder inner chamber UNICOM, sealing gasket 14 is equipped with at step place in attachment hole and inlet hole handing-over, on the attachment hole sidewall in sealing gasket 14 outsides, be provided with the inflation interface 12 that communicates with attachment hole, being bolted with in the attachment hole can be by the screw plug 13 that screws crush seal pad 14, the working procedure of this structure is: when needs are given gas cylinder 1 inflation, unscrew screw plug 13, make inflation interface 12 and inlet hole UNICOM, external source of the gas enters in the gas cylinder 1 by inflation interface 12, when the pressure in the gas cylinder reaches its working pressure, screw plug 13 screws up with a wrench, compressing sealing gasket 14 produces distortion, screw plug 13 bottom surfaces and sealing gasket 14 are fitted tightly, realize sealing.
What this sealing means adopted is the metallic gasket end face seal, therefore needs bigger screw plug, and just can make sealing gasket produce bigger compressive strain with bigger power, makes the gas cylinder sealing.Because this structural requirement sealing gasket two sides all will fit tightly, so disposable envelope bottle success rate is lower, and difficult gas cylinder is obturaged reach long-term gastight purpose, and this structural volume is bigger, is not suitable for using on the minitype high voltage gas cylinder.In addition, this kind sealing means can not repeat sealing, when envelope bottle back checks that the inflation pressure of gas cylinder and air storage amount are undesirable, if the sealing gasket that does not more renew, exit or tonifying Qi after can't guarantee excellent sealing performance.
The model utility content
The purpose of this utility model provides a kind of disposable envelope bottle success rate height, can repeat sealing and seal operation gas cylinder gas-flow closure structure easily.
For achieving the above object, the utility model adopts following technological scheme: gas cylinder gas-flow closure structure, comprise inflation interface and attachment hole and the inlet hole offered along gas cylinder bottleneck axial direction ecto-entad, attachment hole and inlet hole communicate with one another form outer big in little stepped shape through hole, inlet hole and gas cylinder inner chamber UNICOM, at the attachment hole internal spiral spiral is installed and compresses sealing mechanism, spiral compresses sealing mechanism and comprises the screw propulsion body of spinning on attachment hole and the cone seal body that is installed in the attachment hole, the awl point of cone seal body can insert in the inlet hole, between cone seal body and attachment hole inwall, has the filling channel that to link up inflation interface and inlet hole, the screw propulsion body unscrews under the state, filling channel UNICOM inflation interface and inlet hole, the screw propulsion body screws under the state, and the awl point of cone seal body advances in inlet hole and the mouth of inlet hole is sealed and matched along crimping formation; Compress between sealing mechanism and the attachment hole inwall at spiral and to be provided with circumferential sealing in the outside of filling channel.
Described cone seal body and the split of screw propulsion body are provided with, described inflation interface is located at the afterbody of screw propulsion body, described circumferential sealing is mounted in the seal ring at screw propulsion body middle part, the head roof pressure of screw propulsion body also is provided with the air flue of linking up inflation interface and filling channel in the afterbody of cone seal body on the screw propulsion body; Cone seal body afterbody has radially convex edge, and this radially is provided with vent in the convex edge, also is set with correcting spring on the cone seal body, and an end of correcting spring is butted on the described radially convex edge, and the other end is butted on the step of attachment hole and inlet hole jointing place; The awl point of cone seal body is towards the direction of propulsion of screw propulsion body.
Described air flue comprises radial hole and the UNICOM's radial hole and the axial bore of inflating interface of being located at screw propulsion body head.
Described cone seal body and screw propulsion body are wholely set, described inflation interface is located at the afterbody of screw propulsion body, described circumferential sealing is mounted in the seal ring at screw propulsion body middle part, also is provided with the air flue of linking up inflation interface and filling channel on the screw propulsion body; The awl point of cone seal body is towards the direction of propulsion of screw propulsion body.
Described air flue comprises radial hole and the UNICOM's radial hole and the axial bore of inflating interface of being located at screw propulsion body head.
Described cone seal body afterbody has radially convex edge, and this radially is provided with vent in the convex edge, also is set with correcting spring on the cone seal body, and an end of correcting spring is butted on the described radially convex edge, and the other end is butted on the step of attachment hole and inlet hole jointing place.
Described cone seal body and the split of screw propulsion body are provided with, described inflation interface is located at the position of close inlet hole one side on the attachment hole sidewall, described circumferential sealing is mounted in screw propulsion body middle part or anterior seal ring, and the head roof pressure of screw propulsion body is in the afterbody of cone seal body; Cone seal body afterbody has radially convex edge, also be set with correcting spring on the cone seal body, one end of correcting spring is butted on the described radially convex edge, and the other end is butted on the step of attachment hole and inlet hole jointing place, and the awl point of cone seal body is towards the direction of propulsion of screw propulsion body.
Described cone seal body and screw propulsion body are wholely set, described inflation interface is located at the position of close inlet hole one side on the attachment hole sidewall, described circumferential sealing is mounted in screw propulsion body middle part or anterior seal ring, and the awl point of cone seal body is towards the direction of propulsion of screw propulsion body.
The utility model adopts cone seal body and screw propulsion body to constitute spiral and compresses sealing mechanism, when inflation, unscrew the screw propulsion body, have the gap between the awl point of cone seal body and the inlet hole, this gap UNICOM gas cylinder inner chamber and filling channel are after inflation finishes, screw the screw propulsion body, cone seal portion can advance along with screwing in inlet hole of screw propulsion body, finally even at the cost of one's life induction port along on, form line contact sealing with induction port along tight crimping and cooperate.The sealing configuration of this form does not need too big strength just easily gas cylinder to be obturaged, and can guarantee that the permanent sealing of gas cylinder is air tight, and it once seals bottle success rate and can reach more than 98%, is particularly suitable for adopting on high pressure and ultrahigh pressure gas cylinder; In addition, the inflation of this structure and envelope bottle process operation are convenient, rapid, and manufacturing efficiency is improved; When the inflation pressure of inspection gas cylinder and air storage amount are undesirable after sealing bottle, can also adopt a kind of special tool to unscrew the screw propulsion body, make the awl point of cone seal body break away from the induction port edge, open sealing, exit or tonifying Qi after tighten the screw propulsion body again, make its awl point compress the induction port edge, still can realize the excellent sealing of gas cylinder, and do not need to change any part, use very convenient flexible.
Spiral compresses sealing configuration and adopts split type cone seal body and screw propulsion body, and will inflate interface and be located on the screw propulsion body, simple in structure, size is little, in light weight, for the gas cylinder miniaturization provides a good technology; Simultaneously, the easy manufacturing of this structure, especially split-type structural, can calculate up-to-standard rate respectively, reduce production and processing cost relatively, and when processing and assembling, screw propulsion body, cone seal body and gas cylinder attachment hole have not been needed to propose the coaxality requirement, reduced the difficulty of processing and assembling, and when the envelope bottle, also eliminated the envelope bottle resistance that causes because of coaxiality error, so need not just the screw propulsion body to be screwed onto the bottom and to guarantee better seal with very big power.Correcting spring be set be for the awl point that guarantees the cone seal body successfully forward insert the gas cylinder inlet hole, create conditions for forming excellent sealing performance.
Description of drawings
Fig. 1 is the schematic representation of existing gas cylinder gas-flow closure structure;
Fig. 2 is the utility model embodiment 1 a structural representation;
Fig. 3 is the cone seal body of integral type among the utility model embodiment 2 and the structural representation of screw propulsion body;
Fig. 4 is the utility model embodiment 3 a structural representation;
Fig. 5 is the utility model embodiment 4 a structural representation.
Embodiment
Embodiment 1:
Gas cylinder gas-flow closure structure shown in Figure 2, ecto-entad is offered attachment hole 6 and inlet hole 7 on gas cylinder 1 bottleneck axis, attachment hole 6 and inlet hole 7 communicate with one another form outer big in little stepped shape through hole, inlet hole 7 and gas cylinder inner chamber UNICOM are equipped with spiral at attachment hole 6 internal spirals and compress sealing mechanism.
Described spiral compresses sealing mechanism and comprises that the cone seal body 3 that is installed in the attachment hole and spiral are installed in the screw propulsion body 5 on the attachment hole, cone seal body 3 and the 5 split settings of screw propulsion body, the awl point of cone seal body 3 inserts inlet hole 7, and the awl point of cone seal body is towards the direction of propulsion of screw propulsion body.The afterbody of cone seal body has the radially convex edge adaptive with attachment hole 6, radially be provided with vent 8 on the convex edge at this, also be set with correcting spring 2 on the cone seal body 3, an end of correcting spring 2 is butted on radially on the convex edge, and the other end is butted on the step of attachment hole 6 and inlet hole 7 jointing places; The afterbody of screw propulsion body 5 has inflation interface 9, and the middle part of screw propulsion body and attachment hole 6 are suitable, between screw propulsion body middle part and attachment hole seal ring 4 is housed, and the head roof pressure of screw propulsion body is in the afterbody of cone seal body; On the cone seal body radially the radial dimension of the radial dimension of convex edge the first section and screw propulsion body head all less than the aperture of attachment hole 6, between cone seal body 3 and attachment hole inwall, formed the filling channel that to link up inflation interface 9 and inlet hole 7 thus, also be provided with the air flue 10 of linking up inflation interface 9 and filling channel on the screw propulsion body 5, this air flue 10 comprises radial hole and the UNICOM's radial hole and the axial bore of inflating interface 9 of being located at screw propulsion body head.
The working principle of above-mentioned gas cylinder gas-flow closure structure is: when needs were given gas cylinder 1 inflation, the gas-charging connection that will have seal ring was screwed in the inflation interface 9 of screw propulsion body 5, and the inner conical surface applying that makes it and inflate interface 9 compresses, and guarantees sealing.External pressurized gas enter gas cylinder by vent 8 on the air flue in the screw propulsion body 10, the cone seal body and gas cylinder inlet hole 7, after reaching due pressure, the gas pressure in the gas cylinder 1 stops inflation, at this moment turn screw propulsion body 5 roof pressure cone seal bodies 3 with small wrench, make the awl point of cone seal body 3 enter gas cylinder inlet hole 7, the awl point is pressed on the mouth of inlet hole 7 along last at last, become airtight cooperation with awl is pointed, thereby realize high pressure sealing gas cylinder 1.
Embodiment 2:
Embodiment 2 gas cylinder gas-flow closure structure and embodiment 1 difference only are: cone seal body 3 and screw propulsion body 5 among the embodiment 1 are split-type structurals, both then adopt integral structure among the embodiment 2, and shown in Figure 3 is the cone seal body 3 of integral type among the embodiment 2 and the schematic representation of screw propulsion body 5.Though embodiment 2 integral structure also can be realized the purpose of this utility model, to compare with split-type structural, the performance of the split-type structural among the embodiment 1 is more superior, and is specific as follows:
1. the cone seal body of integral type and screw propulsion body, its coaxality and machining accuracy must guarantee simultaneously, and the coaxality of split type cone seal body and screw propulsion body does not have this requirement;
2. the cone seal body of integral type and screw propulsion body if there is place processing defective, will cause whole part to be scrapped, and split-type structural, if having one defective, another still can use, and has reduced production and processing cost relatively;
3. because the gas cylinder internal pressure is higher, integral structure in when bottle envelope owing to be subjected to the influence of coaxiality error and machining accuracy bigger, in the process of tightening the screw propulsion body, may run into bigger frictional force, so must the screw propulsion body could be screwed onto lowermost end with bigger strength, split-type structural then is not subjected to the influence of coaxality, so need not just can be screwed to the position and guarantee better seal with very big strength.
Embodiment 3:
Gas cylinder gas-flow closure structure shown in Figure 4, ecto-entad is offered attachment hole 6 and inlet hole 7 on gas cylinder 1 bottleneck axis, attachment hole 6 and inlet hole 7 communicate with one another form outer big in little stepped shape through hole, inlet hole 7 and gas cylinder inner chamber UNICOM, position near inlet hole 7 one sides on the attachment hole sidewall is provided with inflation interface 20, and attachment hole 6 internal spirals are equipped with spiral and compress sealing mechanism.
Spiral among Fig. 4 compresses sealing mechanism and comprises that the cone seal body 3 that is installed in the attachment hole and spiral are installed in the screw propulsion body 5 on the attachment hole, cone seal body 3 and the 5 split settings of screw propulsion body, the awl point of cone seal body 3 inserts inlet hole 7, and the awl point of cone seal body is towards the direction of propulsion of screw propulsion body.The afterbody of cone seal body has the radially convex edge adaptive with attachment hole 6, also is set with correcting spring 2 on the cone seal body 3, and an end of correcting spring 2 is butted on radially on the convex edge, and the other end is butted on the step of attachment hole 6 and inlet hole 7 jointing places; The middle part of screw propulsion body and attachment hole 6 are suitable, between screw propulsion body middle part and attachment hole seal ring 4 are housed, and the head roof pressure of screw propulsion body is in the afterbody of cone seal body.On the cone seal body radially the radial dimension of convex edge the first section between cone seal body 3 and attachment hole inwall, formed the filling channel that can link up inflation interface 20 and inlet hole 7 thus less than the aperture of attachment hole 6.
Embodiment 4:
Gas cylinder gas-flow closure structure shown in Figure 5, structure shown in itself and the embodiment 3 is basic identical, difference is, cone seal body and screw propulsion body in the present embodiment are wholely set, because this structure does not need to install correcting spring, so cancelled the radially convex edge of cone seal body afterbody.
Claims (8)
1. gas cylinder gas-flow closure structure, comprise inflation interface and attachment hole and the inlet hole offered along gas cylinder bottleneck axial direction ecto-entad, attachment hole and inlet hole communicate with one another form outer big in little stepped shape through hole, inlet hole and gas cylinder inner chamber UNICOM, at the attachment hole internal spiral spiral is installed and compresses sealing mechanism, it is characterized in that: spiral compresses sealing mechanism and comprises the screw propulsion body of spinning on attachment hole and the cone seal body that is installed in the attachment hole, the awl point of cone seal body can insert in the inlet hole, between cone seal body and attachment hole inwall, has the filling channel that to link up inflation interface and inlet hole, the screw propulsion body unscrews under the state, filling channel UNICOM inflation interface and inlet hole, the screw propulsion body screws under the state, and the awl point of cone seal body advances in inlet hole and the mouth of inlet hole is sealed and matched along crimping formation; Compress between sealing mechanism and the attachment hole inwall at spiral and to be provided with circumferential sealing in the outside of filling channel.
2. gas cylinder gas-flow closure structure according to claim 1, it is characterized in that: described cone seal body and the split of screw propulsion body are provided with, described inflation interface is located at the afterbody of screw propulsion body, described circumferential sealing is mounted in the seal ring at screw propulsion body middle part, the head roof pressure of screw propulsion body also is provided with the air flue of linking up inflation interface and filling channel in the afterbody of cone seal body on the screw propulsion body; Cone seal body afterbody has radially convex edge, and this radially is provided with vent in the convex edge, also is set with correcting spring on the cone seal body, and an end of correcting spring is butted on the described radially convex edge, and the other end is butted on the step of attachment hole and inlet hole jointing place; The awl point of cone seal body is towards the direction of propulsion of screw propulsion body.
3. gas cylinder gas-flow closure structure according to claim 2 is characterized in that: described air flue comprises radial hole and the UNICOM's radial hole and the axial bore of inflating interface of being located at screw propulsion body head.
4. gas cylinder gas-flow closure structure according to claim 1, it is characterized in that: described cone seal body and screw propulsion body are wholely set, described inflation interface is located at the afterbody of screw propulsion body, described circumferential sealing is mounted in the seal ring at screw propulsion body middle part, also is provided with the air flue of linking up inflation interface and filling channel on the screw propulsion body; The awl point of cone seal body is towards the direction of propulsion of screw propulsion body.
5. gas cylinder gas-flow closure structure according to claim 4 is characterized in that: described air flue comprises radial hole and the UNICOM's radial hole and the axial bore of inflating interface of being located at screw propulsion body head.
6. gas cylinder gas-flow closure structure according to claim 5, it is characterized in that: described cone seal body afterbody has radially convex edge, this radially is provided with vent in the convex edge, also be set with correcting spring on the cone seal body, one end of correcting spring is butted on the described radially convex edge, and the other end is butted on the step of attachment hole and inlet hole jointing place.
7. gas cylinder gas-flow closure structure according to claim 1, it is characterized in that: described cone seal body and the split of screw propulsion body are provided with, described inflation interface is located at the position of close inlet hole one side on the attachment hole sidewall, described circumferential sealing is mounted in screw propulsion body middle part or anterior seal ring, and the head roof pressure of screw propulsion body is in the afterbody of cone seal body; Cone seal body afterbody has radially convex edge, also be set with correcting spring on the cone seal body, one end of correcting spring is butted on the described radially convex edge, and the other end is butted on the step of attachment hole and inlet hole jointing place, and the awl point of cone seal body is towards the direction of propulsion of screw propulsion body.
8. gas cylinder gas-flow closure structure according to claim 1, it is characterized in that: described cone seal body and screw propulsion body are wholely set, described inflation interface is located at the position of close inlet hole one side on the attachment hole sidewall, described circumferential sealing is mounted in screw propulsion body middle part or anterior seal ring, and the awl point of cone seal body is towards the direction of propulsion of screw propulsion body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201750941U CN201152454Y (en) | 2007-12-05 | 2007-12-05 | Gas cylinder filling sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201750941U CN201152454Y (en) | 2007-12-05 | 2007-12-05 | Gas cylinder filling sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201152454Y true CN201152454Y (en) | 2008-11-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201750941U Expired - Lifetime CN201152454Y (en) | 2007-12-05 | 2007-12-05 | Gas cylinder filling sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201152454Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103697322A (en) * | 2013-12-27 | 2014-04-02 | 吉林省众鑫汽车装备有限公司 | Ammonia storage tank |
| CN104295891A (en) * | 2014-10-11 | 2015-01-21 | 凯迈（洛阳）气源有限公司 | Gas filling and gas supply joint for gas cylinder and high-pressure gas cylinder using same |
| CN104565802A (en) * | 2014-12-31 | 2015-04-29 | 上海空间推进研究所 | High-pressure gas cylinder, and inflating sealing structure and inflating method thereof |
| CN104838198A (en) * | 2012-10-09 | 2015-08-12 | 科拉温股份有限公司 | Method and apparatus for gas cylinder sealing |
| CN106439324A (en) * | 2016-09-22 | 2017-02-22 | 浙江省海洋水产研究所 | Gas cylinder connecting device |
| CN113494631A (en) * | 2020-03-20 | 2021-10-12 | 未势能源科技有限公司 | Check valve, valve assembly, fuel storage device and vehicle |
-
2007
- 2007-12-05 CN CNU2007201750941U patent/CN201152454Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104838198A (en) * | 2012-10-09 | 2015-08-12 | 科拉温股份有限公司 | Method and apparatus for gas cylinder sealing |
| CN104838198B (en) * | 2012-10-09 | 2016-09-07 | 科拉温股份有限公司 | The method and apparatus sealed for gas cylinder |
| CN103697322A (en) * | 2013-12-27 | 2014-04-02 | 吉林省众鑫汽车装备有限公司 | Ammonia storage tank |
| CN104295891A (en) * | 2014-10-11 | 2015-01-21 | 凯迈（洛阳）气源有限公司 | Gas filling and gas supply joint for gas cylinder and high-pressure gas cylinder using same |
| CN104295891B (en) * | 2014-10-11 | 2016-04-27 | 凯迈（洛阳）气源有限公司 | Gas cylinder inflation, air connector and use the gas cylinder of this device |
| CN104565802A (en) * | 2014-12-31 | 2015-04-29 | 上海空间推进研究所 | High-pressure gas cylinder, and inflating sealing structure and inflating method thereof |
| CN106439324A (en) * | 2016-09-22 | 2017-02-22 | 浙江省海洋水产研究所 | Gas cylinder connecting device |
| CN113494631A (en) * | 2020-03-20 | 2021-10-12 | 未势能源科技有限公司 | Check valve, valve assembly, fuel storage device and vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CAMA (LUOYANG) AIR SOURCE CO., LTD. Free format text: FORMER OWNER: CAMA (LUOYANG) MEASUREMENTS + CONTROLS CO., LTD. Effective date: 20120326 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 471009 LUOYANG, HENAN PROVINCE TO: 471003 LUOYANG, HENAN PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20120326 Address after: 471003 west section of Li Chun West Road, Henan, Luoyang Patentee after: CAMA (Luoyang) Gas Supply Co., Ltd. Address before: 471009 No. 89 Jiefang South Road, Henan, Luoyang Patentee before: CAMA (Luoyang) Measurements & Controls Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081119 |