CN106895258A - A kind of strong dioxide bottle charging joint of sealing - Google Patents

A kind of strong dioxide bottle charging joint of sealing Download PDF

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Publication number
CN106895258A
CN106895258A CN201710257838.2A CN201710257838A CN106895258A CN 106895258 A CN106895258 A CN 106895258A CN 201710257838 A CN201710257838 A CN 201710257838A CN 106895258 A CN106895258 A CN 106895258A
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CN
China
Prior art keywords
motion bar
joint
fittings body
cavity
strong
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201710257838.2A
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Chinese (zh)
Other versions
CN106895258B (en
Inventor
黄先平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Changzhou Vocational Institute of Engineering
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Changzhou Vocational Institute of Engineering
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Priority to CN201710257838.2A priority Critical patent/CN106895258B/en
Publication of CN106895258A publication Critical patent/CN106895258A/en
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Publication of CN106895258B publication Critical patent/CN106895258B/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C13/00Details of vessels or of the filling or discharging of vessels
    • F17C13/002Details of vessels or of the filling or discharging of vessels for vessels under pressure
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C13/00Details of vessels or of the filling or discharging of vessels
    • F17C13/06Closures, e.g. cap, breakable member
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C2205/00Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302Fittings, valves, filters, or components in connection with the gas storage device

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 kind of strong dioxide bottle charging joint of sealing, it is related to a kind of charging joint.The present invention includes fittings body, joint and motion bar, the inside of fittings body is provided with a fittings body cavity being engaged with the left end portion of motion bar, the left end of motion bar is provided with a head for stretching out fittings body cavity, the inside of motion bar is provided with inner chamber, the left end of motion bar is provided with through hole on the sealing contact surface with fittings body, relative displacement of the open/close states of the through hole by motion bar in fittings body is controlled, the right-hand member of motion bar is connected with joint, and the inside of joint is provided with the splice cavity of a communication with cavity and gas bomb air inlet.The present invention is capable of the through hole of communication with cavity and aerating device located at motion bar on the sealing contact surface with fittings body, and face contacts between motion bar and fittings body, and sealing property more preferably, works more reliable;The present invention also has a highly versatile, applied widely, simple structure, easy to make, the features such as fill efficiency high.

Description

A kind of strong dioxide bottle charging joint of sealing
Technical field
The present invention relates to a kind of charging joint of dioxide bottle, more specifically to a kind of sealing it is strong two Carbonoxide cylinder filling joint.
Background technology
In the filling process of dioxide bottle, one end of charging joint is connected with bus-bar, and charging joint is arranged on Fill on fixture, then be filled with fixture and be connected on dioxide bottle so that the other end and carbon dioxide gas of charging joint The intake valve connection of bottle, you can realize inflation.It is attached on different air accumulators by being filled with joint, you can realize carbon dioxide Gas cylinder is successively filled.In the process, to avoid gas from wasting, the often mounting ball valve on fixture is filled, when a dioxy At the end of changing carbon cylinder filling, ball valve is closed by artificial operation, then unload and fill fixture, prepare filling process next time.Fill Process needs frequent operation ball valve, influences production efficiency, and ball valve also can be because using frequently aggravation of wearing and tearing, so as to cause gas to be let out Leakage, causes the wasting of resources, causes great potential safety hazard, and pollution environment.
Through inquiry, it is found that existing number of patent application is the utility model patent of CN201220397300.4, its Granted publication Day is on 2 20th, 2013, and patent name is:Charging joint.This application case includes being provided with the joint master of inner chamber and both ends open Body, the circulation of control fluid or the check valve for disconnecting and the control structure of the check valve closure or openness is controlled, the check valve and should Control structure is installed in inner chamber.At the end of inflation, effect of the gas bomb to top no longer applying power, push rod and top are loose Open, because push rod is blocked by card convex, make top and push rod be unlikely to deviate from adapter body, sealing steel ball is in spring and fills flexible pipe Gasket seal is tightly suppressed under internal gas back pressure effect, gas circuit is cut off, gas is closed and is being filled inside hose.This application case reality The function combination of charging joint and ball valve is showed, charging joint can be automatically switched off after inflation terminates, using more convenient.But The charging joint there is problems:
1st, inflated hose need to set an auxiliary section offseted with the spring of charging joint in the junction with charging joint, and Gas bomb also needs to set an ad hoc structure in the junction with charging joint, is coordinated with the top with charging joint, in other words, i.e., The charging joint must be supported the use with the aerating device of ad hoc structure and gas cylinder, using there is significant limitation, be applicable model Enclose small.
2nd, the charging joint realizes sealing using the cooperation between steel ball and pad, is only at the cooperation of steel ball and pad Linear contact lay, sealing property is poor, causes the charging joint when closed or may reveal, and it is unreliable to work.
3rd, the charging joint complex structure, part is various, and production cost is higher.
The content of the invention
1. the invention technical problem to be solved
It is an object of the invention to overcome existing charging joint above shortcomings, there is provided a kind of sealing it is strong two Carbonoxide cylinder filling joint.Using technical scheme, it is capable of the through hole of communication with cavity and aerating device located at activity Bar on the sealing contact surface with fittings body, face contacts between motion bar and fittings body, sealing property more preferably, work more may be used Lean on, and highly versatile, the scope of application is wider, and simple structure, easy to make, and production cost is substantially reduced.
2. technical scheme
To reach above-mentioned purpose, the technical scheme that the present invention is provided is:
A kind of strong dioxide bottle charging joint of sealing of the invention, including fittings body, joint and motion bar, institute The inside of the fittings body stated is provided with a fittings body cavity being engaged with the left end portion of motion bar, and motion bar left end portion Head of the size more than fittings body cavity, the head can be provided with the internal slide of fittings body, the left end of described motion bar Fittings body cavity is stretched out in portion, and the inside of described motion bar is provided with inner chamber, and the left end of described motion bar is close with fittings body Sealing-in contacting surface is provided with the through hole for being capable of communication with cavity and aerating device, and the open/close states of the through hole are by motion bar in fittings body Relative displacement control, the right-hand member of described motion bar is connected with joint, the inside of described joint is provided with a communication with cavity With the splice cavity of gas bomb air inlet.
Further, the body of described motion bar is the circular tube structure of right-end openings.
Further, described through hole is located on the side face of the body of motion bar, and positioned at the vicinity of head.
Further, the left end of described fittings body is provided with the cavity volume of a receiving head, described cavity volume connection joint Body cavity and aerating device, and the cavity volume size more than head size.
Further, the left end of described fittings body is provided with the external screw thread being connected with aerating device.
Further, the outer surface of described fittings body is provided with installation portion.
Further, the right-hand member of described motion bar is provided with external screw thread, and described joint is provided with and above-mentioned external screw thread The internal thread being engaged.
Further, described head is provided with mounting groove.
Further, the end being threadedly coupled between described motion bar and joint is provided with sealing ring.
Further, it is spherical structure at the gas outlet of the splice cavity of described joint.
3. beneficial effect
The technical scheme provided using the present invention, compared with existing known technology, with following remarkable result:
(1) the strong dioxide bottle charging joint of a kind of sealing of the invention, it being capable of communication with cavity and inflation dress Located at motion bar on the sealing contact surface with fittings body, face contacts the through hole put between motion bar and fittings body, sealing More preferably can work more reliable.
(2) the strong dioxide bottle charging joint of a kind of sealing of the invention, its hole is located at the body of motion bar On side face, and positioned at the vicinity of head, when the head of motion bar slides onto low order end, head and the fittings body cavity of motion bar Left side laminating, form first sealing, and the inwall of motion bar and fittings body cavity coordinates, it is logical on the side face of motion bar Hole is to be blocked by the inwall of fittings body cavity, forms second sealing, and sealing effectiveness is extremely protruded.
(3) the strong dioxide bottle charging joint of a kind of sealing of the invention, it is living after the completion of once inflation action Low order end is slid onto under the push of carbon dioxide liquid stream of the head of lever in aerating device, i.e., with the left end of fittings body cavity Face is fitted, so as to realize the effect for automatically cutting off, using very convenient, drastically increased and is filled efficiency, and reliable operation.
(4) a kind of strong dioxide bottle charging joint of sealing of the invention, the left end of its fittings body is provided with an appearance Bow one's head the cavity volume in portion, the displacement of head is all the time in cavity volume, and it is more reasonable to set.
(5) the strong dioxide bottle charging joint of a kind of sealing of the invention, right-hand member and the joint spiral shell of its motion bar Line is connected, and joint is consumable accessory, and the mode of threaded connection can meet seal request, and be easy to dismount and change joint, use It is very convenient.
(6) a kind of strong dioxide bottle charging joint of sealing of the invention, screw thread between its motion bar and joint The end of connection is provided with sealing ring, and the sealing effectiveness of motion bar and joint is more preferable.
(7) a kind of strong dioxide bottle charging joint of sealing of the invention, the head of its motion bar is provided with peace Tankage, is easy to the installation between motion bar and joint to connect.
Brief description of the drawings
Fig. 1 be a kind of strong dioxide bottle charging joint of sealing of the invention in off position under structural representation Figure;
Fig. 2 is a kind of structural representation in the on state of the strong dioxide bottle charging joint of sealing of the invention Figure;
Fig. 3 is a kind of structural representation of the fittings body of the strong dioxide bottle charging joint of sealing of the invention;
Fig. 4 is a kind of structural representation of the motion bar of the strong dioxide bottle charging joint of sealing of the invention.
Label declaration in schematic diagram:
1st, fittings body;11st, installation portion;12nd, fittings body cavity;13rd, step;14th, cavity volume;2nd, joint;21st, splice cavity; 3rd, motion bar;31st, through hole;32nd, inner chamber;33rd, head;331st, mounting groove.
Specific embodiment
To further appreciate that present disclosure, the present invention is described in detail in conjunction with the accompanying drawings and embodiments.
Embodiment
With reference to Fig. 1~Fig. 4, a kind of strong dioxide bottle charging joint of sealing of the present embodiment, including fittings body 1st, joint 2 and motion bar 3, the inside of fittings body 1 are provided with a fittings body cavity 12 being engaged with the left end portion of motion bar 3, And the left end portion of motion bar 3 can be in the internal slide of fittings body 1;The left end of motion bar 3 is provided with a size more than fittings body The head 33 of cavity 12, the head 33 stretches out fittings body cavity 12, as shown in figure 1, the left end of head 33 and fittings body cavity 12 When face offsets, the extreme position that as motion bar 3 slides to the right in fittings body 1;The inside of motion bar 3 is provided with inner chamber 32, tool Body ground, the body of the motion bar 3 of the present embodiment is the circular tube structure of right-end openings, and head 33 is the body located at motion bar 3 Left end;The left end of motion bar 3 with the sealing contact surface of fittings body 1 on be provided with the through hole of being capable of communication with cavity 32 and aerating device 31, face contacts between motion bar 3 and fittings body 1, and sealing property more preferably, works more reliable, and preferably, through hole 31 is in motion bar 3 Same axial positions be circumferentially uniformly arranged many places and be preferred, the phase of the open/close states of through hole 31 by motion bar 3 in fittings body 1 Contraposition in-migration control, more specifically, through hole 31 is on the side face of the body of motion bar 3, and positioned at the vicinity of head 33, works as work When the head 33 of lever 3 slides onto low order end, the head 33 of motion bar 3 is fitted with the left side of fittings body cavity 12, forms the Seal together, and motion bar 3 coordinates with the inwall of fittings body cavity 12, the through hole 31 on the side face of motion bar 3 is by fittings body The inwall of cavity 12 is blocked, and forms second sealing, and sealing effectiveness is extremely protruded, when the head 33 of motion bar 3 slides onto to the left During certain position, the through hole 31 on motion bar 3 removes fittings body cavity 12, and the inwall of fittings body cavity 12 no longer blocks through hole 31, through hole 31 can communication with cavity 32 and aerating device;Further, the left end of fittings body 1 is provided with a receiving motion bar 3 The cavity volume 14 of head 33, the displacement of head 33 in cavity volume 14, sets reasonable all the time, the cavity volume 14 connection fittings body cavity 12 And aerating device, and the cavity volume 14 size more than head 33 size;As shown in figure 3, due to cavity volume 14 and fittings body cavity 12 diameter is different, so the place of communicating of cavity volume 14 and fittings body cavity 12 forms a step 13, the step 13 can limitation work The head 33 of lever 3 is moved to right, and chamfering is set at step 13, and certainly, the corresponding position of the head 33 of motion bar 3 is also provided with down Angle, coordinates more reliable and more stable.
Hookup 1 and Fig. 2, the right-hand member of the motion bar 3 of the present embodiment are connected with joint 2, when joint 2 move to left to fittings body 1 when offseting, the extreme position that as motion bar 3 slides to the left in fittings body 1, is acted on certain position limitation protection, certainly, Spacing can also rely on that the fittings body 1 slides to the left fills fixture and completes.Specifically, the right-hand member of motion bar 3 is provided with external screw thread, Joint 2 is provided with the internal thread being engaged with above-mentioned external screw thread, and joint 2 is consumable accessory, and the mode of this threaded connection can expire Seal request between sufficient motion bar 3 and joint 2, and be easy to dismount and change joint 2, using very convenient;And the He of motion bar 3 The end being threadedly coupled between joint 2 is provided with sealing ring 4, and the sealing effectiveness between motion bar 3 and joint 2 is more preferable;Due to work Lever 3 and joint 2 are threadedly coupled, and the head 33 of the motion bar 3 of the present embodiment is provided with mounting groove 331, as shown in figure 4, more Body ground, mounting groove 331 uses flat recess, is easy to the installation between motion bar 3 and joint 2 to connect;As shown in Fig. 2 joint 2 is interior Portion is provided with the splice cavity 21 of a communication with cavity 32 and gas bomb air inlet, and is at the gas outlet of the splice cavity 21 of joint 2 Spherical structure.
Additionally, the left end of the fittings body 1 of the present embodiment is provided with the external screw thread being connected with aerating device, and fittings body 1 is outer Surface is provided with installation portion 11, the installation portion 11 in the form of hexagonal bolt head, as shown in Figure 1.These are prior art, tool Body structure and effect are repeated no more.The charging joint of the present embodiment is made of H62 materials.
It is to be understood that the left and right directions in present application is only based on the statement in accompanying drawing, to facilitate understanding, not Tool is restricted.Further, since carbon dioxide is under normal conditions gaseous state, therefore " air inlet ", " outlet are employed in present application The wording such as mouth ", " aerating device ", is not to be limited to carbon dioxide during using the charging joint to be in gaseous state.
For a kind of strong dioxide bottle charging joint of the sealing for more fully understanding the present embodiment, in conjunction with Fig. 1 ~Fig. 4 is briefly described to the working condition of the present embodiment.When using, the charging joint is installed on and fills on fixture, fittings body 1 Left end be connected with aerating device (i.e. carbon dioxide bus-bar), charging joint when not being connected with the air inlet of gas bomb all the time Remain off.It is filled with fixture to be connected at the air inlet of gas bomb, the leading screw of fixture, the phase of joint 2 is filled by regulation It is moved to the left for fittings body 1, that is, drives motion bar 3 to be moved to the left, when the through hole 31 on motion bar 3 removes fittings body cavity 12 When, the carbon dioxide liquid stream in aerating device enters inner chamber 32 by cavity volume 14 from through hole 31, finally enters via splice cavity 21 Gas bomb, realizes inflation;When once inflation action is completed, after loosening fills the leading screw of fixture, the head 33 of motion bar 3 is in inflation Low order end is slid onto under the push of the carbon dioxide liquid stream in device, i.e., is fitted with step 13, so as to reach what is automatically cut off Effect, using very convenient, drastically increases charging efficiency, and reliable operation.
A kind of strong dioxide bottle charging joint of sealing of the invention, is capable of the logical of communication with cavity and aerating device Located at motion bar on the sealing contact surface with fittings body, face contacts between motion bar and fittings body in hole, and sealing property is more preferable, Work is more reliable;The present invention is threadedly coupled with aerating device, and ball face sealing connection at the air inlet of dioxide bottle, with biography The attachment structure of the charging joint of system is identical, i.e., present invention can apply to traditional aerating device and gas bomb, therefore highly versatile, The scope of application is wider, and simple structure, easy to make, and production cost is substantially reduced;It is easy to use and joint is conveniently replaceable, section About resource.
The structure of charging joint of the invention can be additionally used in filling for some other liquid substance, be not limited in titanium dioxide Carbon.
Below schematically the present invention and embodiments thereof are described, the description does not have restricted, institute in accompanying drawing What is shown is also one of embodiments of the present invention, and actual structure is not limited thereto.So, if the common skill of this area Art personnel enlightened by it, in the case where the invention objective is not departed from, without creatively designing and the technical scheme Similar frame mode and embodiment, all should belong to protection scope of the present invention.

Claims (10)

1. the strong dioxide bottle charging joint of a kind of sealing, it is characterised in that:Including fittings body (1), joint (2) and work Lever (3), the inside of described fittings body (1) is provided with a fittings body cavity being engaged with the left end portion of motion bar (3) , and the left end portion of motion bar (3) can be provided with the internal slide of fittings body (1), the left end of described motion bar (3) (12) One size is more than the head (33) of fittings body cavity (12), and the head (33) stretches out fittings body cavity (12), described motion bar (3) inside is provided with inner chamber (32), the left end of described motion bar (3) with the sealing contact surface of fittings body (1) on be provided with energy The through hole (31) of enough communication with cavity (32) and aerating device, the open/close states of the through hole (31) are by motion bar (3) in fittings body (1) Interior relative displacement is controlled, and the right-hand member of described motion bar (3) is connected with joint (2), the inside of described joint (2) is provided with The splice cavity (21) of one communication with cavity (32) and gas bomb air inlet.
2. the strong dioxide bottle charging joint of a kind of sealing according to claim 1, it is characterised in that:Described The body of motion bar (3) is the circular tube structure of right-end openings.
3. the strong dioxide bottle charging joint of a kind of sealing according to claim 2, it is characterised in that:Described Through hole (31) on the side face of the body of motion bar (3), and positioned at the vicinity of head (33).
4. a kind of strong dioxide bottle charging joint of sealing according to claims 1 to 3 any one, its feature It is:The left end of described fittings body (1) is provided with the cavity volume (14) of a receiving head (33), described cavity volume (14) connection joint Body cavity (12) and aerating device, and the cavity volume (14) size more than head (33) size.
5. the strong dioxide bottle charging joint of a kind of sealing according to claim 4, it is characterised in that:Described The left end of fittings body (1) is provided with the external screw thread being connected with aerating device.
6. the strong dioxide bottle charging joint of a kind of sealing according to claim 5, it is characterised in that:Described The outer surface of fittings body (1) is provided with installation portion (11).
7. the strong dioxide bottle charging joint of a kind of sealing according to claim 1, it is characterised in that:Described The right-hand member of motion bar (3) is provided with external screw thread, and described joint (2) is provided with the internal thread being engaged with above-mentioned external screw thread.
8. the strong dioxide bottle charging joint of a kind of sealing according to claim 7, it is characterised in that:Described Head (33) is provided with mounting groove (331).
9. the strong dioxide bottle charging joint of a kind of sealing according to claim 7, it is characterised in that:Described The end being threadedly coupled between motion bar (3) and joint (2) is provided with sealing ring (4).
10. the strong dioxide bottle charging joint of a kind of sealing according to claim 9, it is characterised in that:It is described Joint (2) splice cavity (21) gas outlet at be spherical structure.
CN201710257838.2A 2017-04-19 2017-04-19 Carbon dioxide gas cylinder filling joint with high sealing performance Active CN106895258B (en)

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CN201710257838.2A CN106895258B (en) 2017-04-19 2017-04-19 Carbon dioxide gas cylinder filling joint with high sealing performance

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Application Number Priority Date Filing Date Title
CN201710257838.2A CN106895258B (en) 2017-04-19 2017-04-19 Carbon dioxide gas cylinder filling joint with high sealing performance

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CN106895258A true CN106895258A (en) 2017-06-27
CN106895258B CN106895258B (en) 2024-02-13

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107559470A (en) * 2017-07-27 2018-01-09 北京北机机电工业有限责任公司 A kind of sealing locking member for realizing high-pressure filling

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Publication number Priority date Publication date Assignee Title
CN2110770U (en) * 1991-09-11 1992-07-22 王宇 Screw-thread clamp device for filling hydrogen or oxygen
JP2007078158A (en) * 2005-09-16 2007-03-29 Hitachi Metals Ltd Hose-end connection joint
CN101182890A (en) * 2007-11-20 2008-05-21 江苏宝胜电气股份有限公司 Gas pumping-charging bidirectional self-sealing valve
CN202158260U (en) * 2011-07-26 2012-03-07 宁波三安制阀有限公司 Air bottle valve
CN202629095U (en) * 2012-06-11 2012-12-26 重庆瑞信气体有限公司 Automatic blocking inflation valve
CN102878426A (en) * 2012-05-28 2013-01-16 泉州天星气体有限公司 Filling joint
CN204026134U (en) * 2014-06-18 2014-12-17 台大工业气体(太仓)有限公司 A kind of gas cylinder mark pipe joint
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
CN206669323U (en) * 2017-04-19 2017-11-24 常州工程职业技术学院 A kind of strong dioxide bottle charging joint of sealing

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2110770U (en) * 1991-09-11 1992-07-22 王宇 Screw-thread clamp device for filling hydrogen or oxygen
JP2007078158A (en) * 2005-09-16 2007-03-29 Hitachi Metals Ltd Hose-end connection joint
CN101182890A (en) * 2007-11-20 2008-05-21 江苏宝胜电气股份有限公司 Gas pumping-charging bidirectional self-sealing valve
CN202158260U (en) * 2011-07-26 2012-03-07 宁波三安制阀有限公司 Air bottle valve
CN102878426A (en) * 2012-05-28 2013-01-16 泉州天星气体有限公司 Filling joint
CN202629095U (en) * 2012-06-11 2012-12-26 重庆瑞信气体有限公司 Automatic blocking inflation valve
CN204026134U (en) * 2014-06-18 2014-12-17 台大工业气体(太仓)有限公司 A kind of gas cylinder mark pipe joint
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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
CN206669323U (en) * 2017-04-19 2017-11-24 常州工程职业技术学院 A kind of strong dioxide bottle charging joint of sealing

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107559470A (en) * 2017-07-27 2018-01-09 北京北机机电工业有限责任公司 A kind of sealing locking member for realizing high-pressure filling
CN107559470B (en) * 2017-07-27 2019-04-05 北京北机机电工业有限责任公司 A kind of sealing locking member for realizing high-pressure filling

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