CN2374733Y - Fast tube joint for gas cylinder - Google Patents

Fast tube joint for gas cylinder Download PDF

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Publication number
CN2374733Y
CN2374733Y CN 99233232 CN99233232U CN2374733Y CN 2374733 Y CN2374733 Y CN 2374733Y CN 99233232 CN99233232 CN 99233232 CN 99233232 U CN99233232 U CN 99233232U CN 2374733 Y CN2374733 Y CN 2374733Y
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China
Prior art keywords
wall
inner sleeve
plug connector
link
sleeve
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Expired - Fee Related
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CN 99233232
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Chinese (zh)
Inventor
郭力
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Individual
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Individual
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Abstract

The utility model relates to a fast tube joint for a gas tank, which is provided with a connecting component 1, an insertion 2, and a locking component 3. Threads of the inner wall of an inner sleeve tube 14 in the locking component are screwed with and combined with threads of the outer wall of the connecting component 1 to realize the connection of the connecting component 1 and the inner sleeve tube 14. The right end of the connecting component is a socket seat. An insertion end of the insertion component is inserted in the socket, and is limited by and connected with a latch elastic ball 23 in the locking component. Then, the inner sleeve tube 14 in the locking component is rotated and is moved towards left. Sealing is satisfied through locking the insertion 2 in the axial direction by the latch elastic ball 23. An outer sleeve tube 15 in the locking component is propelled towards left. The latch elastic ball 23 move towards the inner part of an external annular groove 24 to satisfy the insertion and the disassembly of the insertion component. The utility model has the advantages of simple operation and fast realization of installation and disassembly.

Description

A kind of quick coupling that is used for gas can
The utility model relates to a kind of pipe joint, especially a kind of joint that is connected between domestic gas jar and the reduction valve that is applicable to.
Be being connected of existing gas can and reduction valve directly to realize, and connect the source of the gas of gas cooker therefrom by the threaded connector on the rotary valve.Adopt this linkage structure, when the canned combustion gas of each replacing, all need rotate nearly ten circles of threaded connector and could satisfy dismounting and installation, sometimes because of the bayonet socket phenomenon occurring, rotate once more and need reorientate threaded connector, dismounting and the operation of installing bother, and the easy damaged screw of bayonet socket phenomenon that is occurred, and influence its working life.
The purpose of this utility model provides a kind of quick coupling that is used for gas can, and when being used for being connected between gas can and the reduction valve, the mode that adds locking by direct insertion realizes quick connection, thereby simplifies dismounting and the operation when installing.
The quick coupling of finishing above-mentioned task has a link, a plug connector and a locking element.
One gas channels is arranged in the described link, link left end (alleged " left end " or " right-hand member " only is the state that relative accompanying drawing is showed in the present specification) is used for being connected and fixed with gas can, and its interior gas channels and the air flue of gas can are joined, one expanded bore is arranged in the right-hand member of link, make this end form a socket, expanded bore inner orifice and gas channels join, and at connecting part formation circular step, the outer aperture of expanded bore is for inserting mouth, one thread section is arranged on the outer wall of link right-hand member, on the middle part outer wall of link a circular groove is arranged.
One gas channels is arranged in the described plug connector, the right-hand member of plug connector is used for being connected with reduction valve, and its interior gas channels and the air flue of reduction valve are joined, the left end of plug connector is a bayonet end, there is seal ring the end of bayonet end, the socket of this bayonet end and link right-hand member plugs and coincide, and the circular step ladder surface at the expanded bore inner orifice place that the seal ring of bayonet end end and socket are interior engages, and on the middle part outer wall of plug connector an annular slot is arranged.The insertion end of plug connector is inserted in the socket on the link and after realizing connecting, the gas channels in the plug connector promptly with link in gas channels join, promptly connect the source of the gas passage of gas cooker.
Described locking element comprises inner sleeve and outer sleeve, the outer wall of inner sleeve engages with the internal face of outer sleeve, under external force, outer sleeve can produce along the mating face with respect to inner sleeve and move axially, one cascade exocyclic shape groove is arranged on the outer wall of inner sleeve, have on the inwall of outer sleeve in the corresponding cascade to circular groove, both combinations, on the mating face of inner sleeve and outer sleeve, form an annular chamber, spring is set in the annular chamber, the two ends of spring act on respectively on the inner sleeve outer wall and outer sleeve inner wall on the ladder end face of circular groove.The outer wall of inner sleeve right-hand member is provided with a spacing stop ring that stops outer sleeve to move to right, and skids off to the right along the mating face to stop outer sleeve.There is a thread section at the inwall of inner sleeve middle part, and this thread section screws with thread section on the link right-hand member outer wall and realizes being connected of locking element and link, and when rotating inner sleeve, inner sleeve is displacement to the left or to the right.On the inner sleeve left end wall radial direction through hole is arranged, one spacing ball is arranged in the through hole, circular groove on the outer wall of the inner orifice of radial direction through hole and link middle part is corresponding, have on the outer sleeve left end inwall one with the corresponding circular groove in the outer aperture of described radial direction through hole, move to left at the rotation inner sleeve, or when moving to right again after moving to left, spacing ball in the radial direction through hole can move in the circular groove on the outer sleeve left end inwall or in the circular groove on the outer wall of link middle part, the spacing ball present position, be the circular groove that its inside part is positioned at the link outer wall, or at rotation inner sleeve its external lateral portion and be positioned at the circular groove of outer sleeve left end when moving to left.Establish some radial direction through hole on the right-hand member wall of inner sleeve, establish the kayser hoodle in the radial direction through hole, the inner orifice diameter of radial direction through hole is less than the diameter of kayser hoodle, the inner orifice of this radial direction through hole is corresponding with the annular slot on the outer wall of plug connector middle part, end face contacts with the outer sleeve inner wall face outside the kayser hoodle, kayser hoodle inside part then is positioned at the annular slot on the outer wall of plug connector middle part, thereby realizes the spacing connection after plug connector inserts.For satisfying the seal request of gaseous-pressure, single is not enough with regard to described spacing connection, according to foregoing structure, the rotation inner sleeve moves to left, because on the inner sleeve inwall and the screw-thread fit effect of link outer wall, kayser hoodle in its right-hand member radial direction through hole promptly produces an axial force left to plug connector, make the circular step surface of contact at the inner orifice place, socket intramedullary expansion hole of the bayonet end end seal ring of plug connector and link have an enough big static pressure, to satisfy the seal request under the pressure state.Counterrotating inner sleeve during dismounting makes it to move to right, and can satisfy the plug connector dismounting by corresponding operating.The inwall of described outer sleeve right-hand member end is provided with a circular groove, promote outer sleeve left, when spring is compressed overcoming spring force, outer sleeve then along with the mating face of the inner sleeve certain position that moves to left, make described circular groove on the outer sleeve right-hand member inwall just in time aim at the outer aperture of radial direction through hole on the inner sleeve right-hand member wall, can insert the bayonet end of plug connector or extract this moment, in this process, the outer wall effect of bayonet end, the kayser hoodle that will be positioned at radial direction through hole outwards moves on the top, the external lateral portion of kayser hoodle is moved in the circular groove on the outer sleeve right-hand member inwall, the outside yielding of kayser hoodle can make bayonet end insert or extract (dismounting) smoothly, after the bayonet end insertion puts in place, unclamp thrust to outer sleeve, the spring force effect, outer sleeve resets to the right automatically, and the kayser hoodle all is squeezed in the radial direction through hole immediately, its inside part then is moved in the annular slot on the plug connector outer wall, and realizes the spacing connection of pegging graft.
Owing to adopting plug connector directly to insert structure in the socket, this quick coupling realizes that its connection connects source of the gas, when satisfying the sealing installation or removal, only need to rotate the threaded tube that has screwed, need not it is at first positioned, have simple to operate and can realize the characteristics installing, dismantle fast, and avoided the normal screw thread bayonet socket phenomenon that occurs of prior art fully, help prolonging its working life.
Link, locking element and the plug connector that Figure 1 shows that this quick coupling is along the structure sectional view that launches on the axial direction;
After Figure 2 shows that locking element and link interconnect, its plug connector is in the sectional view of inserting state;
The plug connector that Figure 3 shows that this quick coupling in the socket that inserts link after, locking element is in the sectional view of locking state, its right part omits.
The utility model is described in further detail to reach embodiment below with reference to the accompanying drawings.
Figure 1 shows that the sectional structure that link 1, plug connector 2 and locking element 3 launch along axial direction, its profile is the pipe shape.
Gas channels 4 is arranged in the link 1, and its left end is used for being connected with gas can, and both gas channels are joined.In reality implement to be used, locking element should carry out not easily detachable fixedlying connected with the air flue outlet end of gas can by the left end of link with after this link is connected, and its Placement is not unique, and promptly conduct is with a member of jar.Establish expanded bore 5 in the right-hand member of link 1, the right output port of the inner orifice of expanded bore and gas channels 4 is joined, the inner orifice place that in both connecting parts is expanded bore forms a circular step 6, therefore the right-hand member at link forms a socket, on the link right-hand member outer wall thread section 7 is set, this thread section is used for screwing with locking element 3 and is connected, and circular groove 8 and annular boss 9 are set on the middle part outer wall of link 1.
Plug connector 2 has gas channels 10 in the plug connector 2, its right-hand member is used for being connected with reduction valve, and after both connected, its air flue then joined, and both Placements are not unique.The left end of plug connector 2 is a bayonet end 11, the interior plug-in type that realizes of socket that bayonet end inserts the link right-hand member connects, and the gas channels that makes both joins and connects the source of the gas passage of gas cooker, referring to Fig. 2, the hole face of the expanded bore 5 of the outer wall of bayonet end 11 and link right-hand member coincide, the seal ring 12 of bayonet end end engages with circular step 6 ladder surfaces at expanded bore inner orifice place, on the middle part outer wall of plug connector 2 annular slot 13 is set.
Locking element 3, the effect of locking element 3: the one, plug connector is carried out spacing connection; The 2nd, it is carried out axial locking and satisfy the requirement of reliable sealing.Locking element 3 comprises inner sleeve 14 and outer sleeve 15, inner sleeve outer wall and outer sleeve inner wall face engage, establish on the inwall of outer sleeve 15 in the cascade to circular groove, establish the export-oriented circular groove of corresponding cascade on the outer wall of inner sleeve 14, both combinations, on its mating face, form an annular chamber 16, spring 17 is set in this chamber, the two ends of spring act on respectively on the inner sleeve outer wall and outer sleeve inner wall on the ladder end face of circular groove, promote outer sleeve left and after spring is compressed, outer sleeve then can produce along the mating face and move to left relatively, after the thrust of releasing to outer sleeve, because of spring action, outer sleeve moves to right and automatically resets along the mating face, and promoting that outer sleeve moves to left is to satisfy plug connector to insert socket or the needs when extracting in the socket.On the middle part inwall of inner sleeve 14 thread section 18 is set, this thread section screws with thread section 7 on the link 1 right-hand member outer wall and realizes being connected of locking element 3 and link 1, please be simultaneously referring to Fig. 1 and Fig. 2, a radial direction through hole 19 is set on the left end wall of inner sleeve 14 at least, establish spacing ball 20 in the radial direction through hole, the inner orifice of radial direction through hole 19 is corresponding with circular groove 8 on link 1 outer wall, establish circular groove 21 on the outer sleeve 15 left end end inwalls, the outer aperture of radial direction through hole 19 is corresponding with circular groove 21, when rotation inner sleeve 14 moves to left, or moving to right when resetting after moving to left, be positioned at the spacing ball 20 of radial direction through hole 19, can radial direction move laterally or to the inside, when spacing ball 20 inside parts are positioned at circular groove 8 on the link outer wall, be state shown in Fig. 2; When its external lateral portion is positioned at circular groove 21 on the outer sleeve left end inwall, stop outer sleeve 15 to move to left, see also state shown in Fig. 3, thereby make the plug connector of the state that is locked not extract.Establish some radial direction through hole 22 on the inner sleeve 14 right-hand member walls, its quantity is at least two, kayser hoodle 23 is arranged in this radial direction through hole, the inner orifice diameter of radial direction through hole 22 is less than the diameter of kayser hoodle, the inner orifice of radial direction through hole 22 is corresponding with annular slot 13 on the described plug connector 2 middle part outer walls, after the bayonet end of plug connector 2 inserts in the socket of link 1, when the inside part of kayser hoodle is positioned at annular slot 13, promptly plug connector 2 is realized spacing connection, see state shown in Figure 2; On the right-hand member end inwall of described outer sleeve 15 circular groove 24 is set, when with outer sleeve during to the left translation certain distance, the notch of the circular groove 24 on it just in time joins with the outer aperture of radial direction through hole 22, for kayser hoodle 23 when the bayonet end 11 when plug connector inserts or extracts, radially make a concession towards the outside, the external lateral portion of kayser hoodle is moved in the circular groove 24, this moment, then concordant with the internal face of inner sleeve or its inboard end face of inboard end face of kayser hoodle was positioned at radial direction through hole, make bayonet end 11 successfully to insert or to extract, when the bayonet end 11 of plug connector insert put in place or extract after, releasing is to the thrust of outer sleeve 15, owing to spring 17 effect automatically resets, kayser hoodle 23 automatically resets immediately to as Fig. 2 or state as shown in Figure 1.In addition, on the outer wall of inner sleeve 14 right-hand members, be provided with outer sleeve 15 right-hand members are carried out spacing stop ring 25, see Fig. 1, skid off to right-hand member because of the effect of spring 17 to stop outer sleeve; Spacing stop ring 26 is set on the inwall of inner sleeve left end end, sees Fig. 1 and Fig. 2, this stop ring acts on annular boss 9 left sides on the link 1 middle part outer wall, with to moving to right of inner sleeve 14 and spacing, see Fig. 2, described spacing stop ring is the open type structure, so that assembling.
Rotation about inner sleeve 14.Being connected of the inner sleeve 14 of locking element and link 1 be to screw and realize by the thread section on it, therefore rotating relative the moving to left or move to right of inner sleeve 14 generations is to carry out on the basis that two thread sections have screwed mutually, need not prior location during rotation, prior art can not occur and connect the bayonet socket phenomenon that occurs often.By shown in Figure 1, can implement rotation to it by the left end outer wall of inner sleeve 14, also can on this end outer wall, set up the flange boss, by rotating the flange boss it is implemented rotation.In shown in Figure 2 this has been provided a kind of preferred structure, screw 27 is set on the wall of inner sleeve 14, corresponding axially waist shaped hole 28 is set on the wall of outer sleeve 15, the nut of screw 27 is positioned at waist shaped hole 28, and outer sleeve 15 can axially relatively move, screw 27 is realized outer sleeve 15 and inner sleeve 14 mutual location in a circumferential direction, then can implement rotation by 15 pairs of inner sleeves of rotary sleeve pipe 14, and it is easy and simple to handle.
Figure 2 shows that the bayonet end of plug connector 2 inserts the interior also situation of spacing connection of socket of link 1, the seal ring 12 of the bayonet end end of plug connector engages with circular step 6 in the socket, the inside part of spacing ball 20 is positioned at the circular groove 8 on the link outer wall, and kayser hoodle 23 inside parts then are positioned at the annular slot 13 on the plug connector 2 middle part outer walls.
Figure 3 shows that the situation after 3 pairs of plug connectors of locking element are implemented axial locking.Aforesaid shown in Figure 2 only be situation after plug connector 2 inserts, on this basis, implement rotation by 15 pairs of inner sleeves of rotating jacket pipe 14, inner sleeve 14 is moved to left, outer sleeve 15 also moves to left thereupon, 23 of kayser hoodles that are positioned at inner sleeve right-hand member radial direction through hole produce an active force left by inside part that it is positioned at annular slot 13 to plug connector 2, and the seal ring 12 that makes plug connector bayonet end end produces a static pressure that satisfies seal request with the mating face of circular step 6.In the locking state shown in Figure 3, moving to left of inner sleeve 14, make spacing ball 20 move laterally, the inboard of spacing ball 20 has been left the circular groove 8 on the link, its inboard end face has moved to the end face of annular boss 9 on the link wall and has contacted, and the external lateral portion of spacing ball 20 has moved in the circular groove 21 of outer sleeve 15 left ends, and plug connector 2 in such cases can not be extracted, and then locates the grafting under the locking state.In the time will extracting plug connector 2, counterrotating inner sleeve 14 makes it correspondingly to move to right and presents state shown in Figure 2, horizontal sliding outer sleeve 15 left again, make the circular groove 24 of outer sleeve right-hand member aim at radial direction through hole 22, kayser hoodle 23 can be made a concession to circular groove 24, successfully extracts and satisfy plug connector 2.When plug connector being locked or removing locking, generally speaking, by state shown in Figure 2, the rotation of inner sleeve 14 only needs 1～2 circle, thereby reaches the purpose of quick mounting and fast quick-detach.
The utility model is not limited to the usefulness that is connected between gas can and the reduction valve, can be used in the quick grafting of other pipelines equally.

Claims (2)

1. a quick coupling that is used for gas can is characterized in that comprising a link, a plug connector and a locking element;
1) in the described link gas channels is arranged, the left end of link is used for being connected and fixed with gas can, and its interior gas channels and the air flue of gas can are joined, one expanded bore is arranged in the right-hand member of link, make this end form a socket, the inner orifice of described expanded bore and described gas channels join, and at connecting part formation circular step, there is a thread section in the outer aperture of expanded bore for inserting mouth on the outer wall of link right-hand member, a circular groove is arranged on the outer wall of middle part;
2) in the described plug connector gas channels is arranged, the right-hand member of plug connector is used for being connected with reduction valve, and its interior gas channels and the air flue of reduction valve are joined, the left end of plug connector is a bayonet end, there is seal ring the bayonet end end, the socket of bayonet end and described link right-hand member plugs and coincide, and interior gas channels of this plug connector and the gas channels in the link are joined, the circular step ladder surface at the expanded bore inner orifice place in the seal ring of bayonet end end and the socket engages, and on the middle part outer wall of plug connector an annular slot is arranged;
3) described locking element comprises inner sleeve and outer sleeve, the outer wall of inner sleeve engages with the internal face of outer sleeve, both can produce along the mating face and move to axial, one cascade exocyclic shape groove is arranged on the outer wall of inner sleeve, have on the inwall of outer sleeve in the corresponding cascade to circular groove, its both combination, promptly on the mating face of inner sleeve and outer sleeve, form an annular chamber, be provided with spring in this annular chamber, the two ends of spring act on respectively on the inner sleeve outer wall and outer sleeve inner wall on the ladder end face of circular groove, there is a thread section at the inwall middle part of inner sleeve, thread section on this thread section and the described link right-hand member outer wall screws, on the inner sleeve left end wall radial direction through hole is arranged, one spacing ball is arranged in the through hole, the inner orifice of this radial direction through hole is corresponding with circular groove on the outer wall of described link middle part, the outer aperture of radial direction through hole is corresponding with the circular groove that is located at outer sleeve left part inwall, the inside part of described spacing ball is positioned at the circular groove on the outer wall of described link middle part, or when the rotation inner sleeve moves to left, the external lateral portion of this spacing ball then is moved in the circular groove of outer sleeve left part inwall, establish some radial direction through hole on the right-hand member wall of described inner sleeve, the kayser hoodle is arranged in it, the inner orifice diameter of this radial direction through hole is less than the diameter of kayser hoodle, and its inner orifice is corresponding with annular slot on the outer wall of described plug connector middle part, the annular slot that described kayser hoodle inside part is positioned on the outer wall of plug connector middle part is realized spacing connection after the insertion to plug connector, and when the described inner sleeve of rotation moves to left, described kayser hoodle produces an axial force left to plug connector, make the circular step surface of contact at the inner orifice place, socket intramedullary expansion hole of the seal ring of bayonet end end and described link that a static pressure that satisfies sealing be arranged, on the inwall of described outer sleeve right-hand member end a circular groove is arranged, after the promotion outer sleeve is moved to the left certain position, this circular groove notch just in time with inner sleeve right-hand member wall on the outer aperture of radial direction through hole join, when kayser hoodle external lateral portion is moved in this circular groove, described plug connector then can insert or extract, and described inner sleeve right-hand member outer wall is provided with a spacing stop ring that can stop outer sleeve to skid off to right-hand member.
2. according to the described a kind of quick coupling that is used for gas can of claim 1, it is characterized in that described inner sleeve (14) wall is provided with screw (27), described outer sleeve (15) wall is provided with corresponding axially waist shaped hole (28), the nut of described screw (27) is positioned at described axial waist shaped hole (28), the inwall of described inner sleeve (14) left end end is provided with spacing stop ring (26), and this spacing stop ring acts on annular boss (9) left side on the outer wall of link (1) middle part.
CN 99233232 1999-04-28 1999-04-28 Fast tube joint for gas cylinder Expired - Fee Related CN2374733Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 99233232 CN2374733Y (en) 1999-04-28 1999-04-28 Fast tube joint for gas cylinder

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Application Number Priority Date Filing Date Title
CN 99233232 CN2374733Y (en) 1999-04-28 1999-04-28 Fast tube joint for gas cylinder

Publications (1)

Publication Number Publication Date
CN2374733Y true CN2374733Y (en) 2000-04-19

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Application Number Title Priority Date Filing Date
CN 99233232 Expired - Fee Related CN2374733Y (en) 1999-04-28 1999-04-28 Fast tube joint for gas cylinder

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101832599A (en) * 2010-04-30 2010-09-15 南京普鲁卡姆电器有限公司 Quick valve connecting device for gas-fired equipment
CN101634326B (en) * 2009-08-18 2010-12-29 苏州诺雅电动车有限公司 Rapid connecting structure of pipe fitting
CN101387400B (en) * 2007-05-04 2012-06-20 沃辛顿火炬有限责任公司 Gas appliance
CN102762909A (en) * 2009-11-18 2012-10-31 柏林心脏有限公司 Device with at least one holow element for conveying a fluid and with a connection element
CN1653272B (en) * 2002-05-14 2013-06-05 卢克摩擦片和离合器两合公司 Hydraulisches system
CN103629472A (en) * 2013-11-07 2014-03-12 大连华根机械有限公司 Blocking mechanism of oil level indicator pipe
CN106609887A (en) * 2015-10-26 2017-05-03 中国石油化工股份有限公司 Pipeline connector for while-drilling instrument
CN108057187A (en) * 2017-12-27 2018-05-22 上海宝亚安全装备股份有限公司 It is a kind of him quickly to be connected with gas and rescue the connection component of breathing mask
CN110672177A (en) * 2019-10-14 2020-01-10 山东和同信息科技股份有限公司 NB-IoT Internet of things intelligent water meter
CN111498676A (en) * 2020-04-27 2020-08-07 南通市建筑设计研究院有限公司 Hoist device of prefabricated wall body of assembled
CN113544426A (en) * 2018-11-13 2021-10-22 瑞维安知识产权控股有限责任公司 Blind mate fluid connector

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1653272B (en) * 2002-05-14 2013-06-05 卢克摩擦片和离合器两合公司 Hydraulisches system
CN101387400B (en) * 2007-05-04 2012-06-20 沃辛顿火炬有限责任公司 Gas appliance
CN101634326B (en) * 2009-08-18 2010-12-29 苏州诺雅电动车有限公司 Rapid connecting structure of pipe fitting
CN102762909B (en) * 2009-11-18 2015-05-27 柏林心脏有限公司 Device with at least one holow element for conveying a fluid and with a connection element
CN102762909A (en) * 2009-11-18 2012-10-31 柏林心脏有限公司 Device with at least one holow element for conveying a fluid and with a connection element
CN101832599B (en) * 2010-04-30 2012-07-18 南京普鲁卡姆电器有限公司 Quick valve connecting device for gas-fired equipment
CN101832599A (en) * 2010-04-30 2010-09-15 南京普鲁卡姆电器有限公司 Quick valve connecting device for gas-fired equipment
CN103629472B (en) * 2013-11-07 2015-10-28 大连华根机械有限公司 Oil level indicator pipe plugging mechanism
CN103629472A (en) * 2013-11-07 2014-03-12 大连华根机械有限公司 Blocking mechanism of oil level indicator pipe
CN106609887A (en) * 2015-10-26 2017-05-03 中国石油化工股份有限公司 Pipeline connector for while-drilling instrument
CN106609887B (en) * 2015-10-26 2018-08-03 中国石油化工股份有限公司 For with the pipeline connecting parts for boring instrument
CN108057187A (en) * 2017-12-27 2018-05-22 上海宝亚安全装备股份有限公司 It is a kind of him quickly to be connected with gas and rescue the connection component of breathing mask
CN108057187B (en) * 2017-12-27 2023-04-07 上海宝亚安全装备股份有限公司 Connecting assembly capable of being rapidly connected with other rescue breathing mask with air
CN113544426A (en) * 2018-11-13 2021-10-22 瑞维安知识产权控股有限责任公司 Blind mate fluid connector
CN113544426B (en) * 2018-11-13 2023-08-29 瑞维安知识产权控股有限责任公司 Blind mating fluid connector
US11746939B2 (en) 2018-11-13 2023-09-05 Rivian Ip Holdings, Llc Blind mate fluid connector
CN110672177A (en) * 2019-10-14 2020-01-10 山东和同信息科技股份有限公司 NB-IoT Internet of things intelligent water meter
CN111498676A (en) * 2020-04-27 2020-08-07 南通市建筑设计研究院有限公司 Hoist device of prefabricated wall body of assembled
CN111498676B (en) * 2020-04-27 2021-11-30 南通市建筑设计研究院有限公司 Hoist device of prefabricated wall body of assembled

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