CN103267152B - Combined type bottle valve - Google Patents
Combined type bottle valve Download PDFInfo
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- CN103267152B CN103267152B CN201310142949.0A CN201310142949A CN103267152B CN 103267152 B CN103267152 B CN 103267152B CN 201310142949 A CN201310142949 A CN 201310142949A CN 103267152 B CN103267152 B CN 103267152B
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Abstract
A kind of combined type bottle valve, belong to a kind of bottle valve, including main valve body, main valve body right-hand member is used to be connected with gas cylinder thread, main valve body is provided with main channel and outlet passageway, main channel right-hand member is connected with filter, main channel right-hand member is communicated by filter with gas cylinder, check valve is connected with the main valve body of main channel left end, main valve body between main channel and outlet passageway is provided with the pressure-reducing valve with switching function, pipe joint is connected with the outlet of outlet passageway, connector channel on pipe joint communicates with outlet passageway, pipe joint is provided with safety valve, pressure gauge is connected with main valve body, pressure gauge is communicated by wing passage with main channel.The advantages of combined type bottle valve of the present invention, is：As long as people, which pull handle, insert pin or pull out pin can, realizes inflation or the outwards switching of gas transmission, the trouble of disassembly and installation pressure-reducing valve is eliminated, greatly facilitates the operation of people.
Description
Technical field：
The present invention relates to a kind of bottle valve, is especially that one kind is integrated with check valve, pressure-reducing valve, the combination of safety valve function
Formula bottle valve.
Background technology：
The function of generally only one switch of conventional bottle valve, bottle valve and pressure-reducing valve are all installed separately, and are inflated
When, pressure-reducing valve is pulled down, is inflated by bottle valve into gas cylinder, after being full of, then pressure-reducing valve is loaded onto on bottle valve and outwards exports and subtract
Gas after pressure, from above procedure it can be seen that in inflation and outside gas transmission, people's disassembly and installation pressure-reducing valve to be circulated,
So operate just cumbersome.
The content of the invention：
The technical problem to be solved in the present invention is to provide one kind in inflation, without dismantling pressure-reducing valve, significantly facilitates people
The combined type bottle valve of operation.
The technical solution of the present invention is to provide a kind of combined type bottle valve with following structure：Including main valve body,
Main valve body right-hand member is used to be connected with gas cylinder, and main valve body is provided with main channel and outlet passageway, and main channel right-hand member communicates with gas cylinder, main
The check valve communicated therewith is connected with the main valve body of passage left end, the main valve body between main channel and outlet passageway is provided with tool
There is the pressure-reducing valve of switching function, the pressure-reducing valve with switching function refers specifically to, and main valve body bottom is provided with and is integral with main valve body
Round platform, round platform lower end is connected with lower cover, and round platform is provided with relief chamber, and relief chamber is communicated with outlet passageway by venthole, subtracted
The main valve body of pressure top of chamber is provided with cone boss, and the air admission hole of main channel and relief chamber is communicated with cone boss, depressurizes
Intracavitary is sequentially provided with main valve, spring strut and shutter spring from top to bottom, and main valve can slide up and down in relief chamber, living
Door spring housing in the bottom of spring strut and is withstood between spring strut and lower cover, and spring strut is located at the inner chamber of main valve bottom
In and withstand on main valve, the upper end of main valve is used to withstanding on cone boss, and the top of main valve body is connected with sleeve, on sleeve
Lid is connected with, bracket is connected with upper lid, flexible sheet is provided between sleeve and main valve body, bracket is provided with open slot, support
Cam is provided with frame, cam is pressed on lid, and cam upper end is connected with the handle being integral with cam, and handle upper portion, which is located at, to be opened
It can swing in mouth groove and in open slot, be sequentially provided with gland, main spring and push rod in sleeve from top to bottom, main spring is enclosed on top
On bar and withstand between push rod and gland, gland and sleeve connection, push rod lower end are withstood on flexible sheet, and push rod top is worn successively
Overpressure cap and upper lid are hinged with cam, and main valve body is provided with live cover push-rod, and live cover push-rod is withstood between flexible sheet and main valve,
Handle upper portion is provided with the first pin-and-hole, and bracket is provided with the second pin-and-hole, when the proximal part of cam is pressed in upper cover, handle vertically to
On, when the distal end of cam is pressed in upper cover, handle tilt, the first pin-and-hole and the second pin-and-hole position overlap.
Combined type bottle valve of the present invention, wherein, buffer, buffer are provided between flexible sheet and live cover push-rod
Including buffing pad, buffer cover and buffer spring, the upper end of buffer cover is withstood on flexible sheet, and lower end is inserted on buffing pad, is delayed
Rush spring to be located in buffing pad and withstand between buffer cover and buffing pad, buffing pad lower end is withstood on live cover push-rod.
Combined type bottle valve of the present invention, wherein, check valve includes the first valve body, the first valve being connected with main valve body
Body is provided with inlet chamber and the outlet chamber communicated with inlet chamber, and outlet chamber communicates with main channel, between inlet chamber and outlet chamber
The first valve body be provided with ring-shaped step, be sequentially provided with screen pack, packing ring and lock-screw, locking screw from top to bottom in inlet chamber
Nail on and be provided with the first axially extending bore, screen pack is pressed on ring-shaped step, and cushion is between screen pack and lock-screw, locking
Screw is connected with the first valve body, is sequentially provided with the first valve element, the first spring, spring base and back-up ring in outlet chamber from top to bottom,
Back-up ring is connected with the first valve body, and spring base is pressed on back-up ring, and the first spring top is between spring base and the first valve element, the first valve element
Upper end is withstood on ring-shaped step, and spring base is provided with the second axially extending bore.
Combined type bottle valve of the present invention, wherein, pipe joint is connected with the outlet of outlet passageway, on pipe joint
Connector channel communicates with outlet passageway, and pipe joint is provided with safety valve, and safety valve includes the second valve body being connected with pipe joint, the
Two valve bodies are provided with adjusting cavity, and adjusting cavity bottom is provided with annular boss, and annular boss is provided with the 3rd communicated with connector channel
Axially extending bore, the second valve body by annular boss are provided with the steam vent communicated with adjusting cavity, in adjusting cavity from top to bottom successively
Provided with adjusting screw, second spring and the second valve element, the second valve element is pressed on annular boss, and second spring withstands on adjusting screw
Between the second valve element, adjusting screw is connected with the second valve body.
Combined type bottle valve of the present invention, wherein, be connected with pressure gauge on main valve body, pressure gauge by wing passage with
Main channel communicates.
Combined type bottle valve of the present invention, wherein, main channel right-hand member is connected with filter.
After above structure, compared with prior art, combined type bottle valve of the present invention has advantages below：When to gas cylinder
During interior inflation, people, which need to only pull handle, overlaps the first pin-and-hole and the second pin-and-hole position, using pin be inserted in the first pin-and-hole and
On second pin-and-hole, then can is inflated by check valve into gas cylinder, and in the process, cam rotates, cam
Distal end can be pressed on lid, the hinged place of cam and push rod can move up, so as to drive push rod to move up, main spring
Compressed, main valve can be pressed on cone boss under the elastic force effect of shutter spring, cut off air admission hole and relief chamber
Communicate, that is, close communicating for main channel and outlet passageway, smoothly can be inflated by main channel into gas cylinder；Work as gas
Bottle outwards output decompression after gas when, operating process with inflation when on the contrary, people need to only pull out pin, from outlet passageway
The gas of outflow is the gas after depressurizing, and in the process, in the presence of main spring, push rod can move down, so as to band
Fixed handle opposite direction rotates, and makes handle straight up, the proximal part of cam can be pressed on lid, while push rod is moved down and can pushed away
Dynamic elasticity diaphragm deforms downwards, and live cover push-rod moves down, and live cover push-rod promotes main valve to move down, and makes air admission hole and decompression
Chamber communicates, and the gases at high pressure in main channel are changed into low-pressure gas by the effect of the throttling of air admission hole and the expansion in relief chamber
Flowed out again by venthole, outlet passageway, as long as can be seen that people from the operation in inflation and outside gas transmission pulls hand
Handle, insert pin or pull out pin can and realize inflation or the outwards switching of gas transmission, the bottle valve for eliminating prior art will
The trouble of the disassembly and installation pressure-reducing valve of circulation, greatly facilitates the operation of people.
Buffer can rise during flexible sheet promotes live cover push-rod or live cover push-rod promotes flexible sheet motion
To the effect of buffering.
Check valve can ensure that gas can be entered in main channel in inflation, and in the outside output gas of gas cylinder,
Gas in main channel will not flow out out of check valve, and in inflation, the screen pack in check valve can play impurity screening
Effect.
The safety value of gas pressure can be set by safety valve, is set when the pressure of the gas flowed out from outlet passageway is more than
During definite value, some gas will discharge from steam vent, serve safe effect.
Pressure gauge serves can be with the effect of the real-time monitored gas pressure in the bottle.
When the outside output gas of gas cylinder, filter can play a part of filtering gaseous impurity in gas cylinder.
Brief description of the drawings：
Fig. 1 is the main view cross section structure diagram of combined type bottle valve of the present invention；
Fig. 2 is Fig. 1 overlooking the structure diagram；
Fig. 3 be in Fig. 1 C to structural representation；
Fig. 4 is A-A cross section structure diagrams in Fig. 2.
Embodiment：
Combined type bottle valve of the present invention is described further with reference to the accompanying drawings and detailed description：
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, in this embodiment, combined type bottle valve of the present invention includes main valve
Body 16, the right-hand member of main valve body 16 are used to be threadedly coupled with gas cylinder 29, and main valve body 16 is provided with main channel 15 and outlet passageway 27, main logical
The right-hand member of road 15 is connected with filter 28, and the right-hand member of main channel 15 is communicated by filter 28 with gas cylinder 29, the master of the left end of main channel 15
Be connected with check valve on valve body 16, the check valve include the first valve body 8, the first valve body 8 that are connected with main valve body 16 be provided with into
Air cavity 2 and the outlet chamber 10 communicated with inlet chamber 2, outlet chamber 10 communicate with main channel 15, between inlet chamber 2 and outlet chamber 10
The first valve body 8 be provided with ring-shaped step 7, be sequentially provided with screen pack 6, packing ring 5 and lock-screw 4 from top to bottom in inlet chamber 2,
Lock-screw 4 is provided with the first axially extending bore 3, and screen pack 6 is pressed on ring-shaped step 7, and packing ring 5 is padded in screen pack 6 and locking
Between screw 4, lock-screw 4 is threadedly coupled with the first valve body 8, is sequentially provided with the first valve element 9, in outlet chamber 10 from top to bottom
One spring 11, spring base 12 and back-up ring 14, back-up ring 14 are stuck on the first valve body 8, and spring base 12 is pressed on back-up ring 14, the first bullet
Spring 11 is withstood between the valve element 9 of spring base 12 and first, and the upper end of the first valve element 9 is withstood on ring-shaped step 7, and spring base 12 is provided with the
Two axially extending bores 13, blocking cap 1 is threaded with first valve body 8 at the top of inlet chamber 2 and is used for preventing dust from entering, when will be to gas
When being inflated in bottle, blocking cap 1 is taken away, the main valve body 16 between main channel 15 and outlet passageway 27 is provided with switching function
Pressure-reducing valve, it should be specifically referred to the pressure-reducing valve of switching function, the bottom of main valve body 16 is provided with the circle being integral with main valve body 16
Platform 21, the lower end of round platform 21 are threaded with lower cover 22, and round platform 21 is provided with relief chamber 25, and relief chamber 25 is by venthole 26 with going out
Gas passage 27 communicates, and the main valve body 16 at the top of relief chamber 25 is provided with cone boss 18, is communicated with cone boss 18 main logical
The air admission hole 19 of road 15 and relief chamber 25, main valve 20, spring strut 24 and living are sequentially provided with relief chamber 25 from top to bottom
Door spring 23, main valve 20 can slide up and down in relief chamber 25, and shutter spring 23 is enclosed on the bottom of spring strut 24 and withstood on
Between spring strut 24 and lower cover 22, spring strut 24 is located in the inner chamber of the bottom of main valve 20 and withstood on main valve 20, main
The upper end of valve 20 is used to withstand on cone boss 18, and the top of main valve body 16 is connected with sleeve 34, is connected with sleeve 34
Lid 42, bracket 40 is connected with upper lid 42, flexible sheet 31 is provided between sleeve 34 and main valve body 16, bracket 40 is provided with opening
Groove 39, bracket 40 is interior to be provided with cam 41, and cam 41 is pressed on lid 42, and the upper end of cam 41 is connected with what is be integral with cam 41
Handle 37, the top of handle 37 are located in open slot 39 and can swung in open slot 39, is sequentially provided with from top to bottom in sleeve 34
Gland 43, main spring 35 and push rod 36, main spring 35 are enclosed on push rod 36 and withstood between push rod 36 and gland 43, gland 43 with
Sleeve 34 is threadedly coupled, and the lower end of push rod 36 is withstood on flexible sheet 31, the top of push rod 36 sequentially pass through gland 43 and upper lid 42 with
Cam 41 is be hinged, and main valve body 16 is provided with live cover push-rod 17, and live cover push-rod 17 is located at the lower section of flexible sheet 31, flexible sheet 31
Buffer is provided between live cover push-rod 17, the buffer includes buffing pad 30, buffer cover 33 and buffer spring 32, buffer cover
33 upper end is withstood on flexible sheet 31, and lower end is inserted on buffing pad 30, and buffer spring 32 is located in buffing pad 30 and withstood on slow
Rush between lid 33 and buffing pad 30, live cover push-rod 17 is withstood between buffing pad 30 and main valve 20, and the top of handle 37 is provided with first
Pin-and-hole 38, bracket is provided with the second pin-and-hole 48, when pulling handle 3, overlaps the first pin-and-hole 38 and the position of the second pin-and-hole 48, this
When, the distal end of cam 41 is pressed on lid 42, and at this moment the upper end of main valve 20 is withstood on cone boss 18, and gas cylinder 29, which is in, to close
Closed state, when rotational handle 37 straight up when, the proximal part of cam 41 is pressed on lid 42, and the upper end of main valve 20 is to moving down
Dynamic to leave cone boss 18, at this moment gas cylinder 29 is in open mode, is connected with pipe joint 47 in the outlet of outlet passageway 27, pipe connects
Connector channel 46 on first 47 communicates with outlet passageway 27, and pipe joint 47 is provided with safety valve, and the safety valve includes and pipe joint
Second valve body 51 of 47 connections, the second valve body 51 are provided with adjusting cavity 56, and the bottom of adjusting cavity 56 is provided with annular boss 54, convex annular
Platform 54 is provided with the 3rd axially extending bore 55 communicated with connector channel 46, and second valve body 51 on the side of annular boss 54 is provided with and tune
The steam vent 53 that chamber 56 communicates is saved, adjusting screw 49, second spring 50 and second are sequentially provided with from top to bottom in adjusting cavity 56
Valve element 52, the second valve element 52 are pressed on annular boss 54, and second spring 50 is withstood between the valve element 52 of adjusting screw 49 and second, are adjusted
Section screw 49 is connected with the second valve body 51, and pressure gauge 44 is connected with main valve body 16, and pressure gauge 44 is led to by wing passage 45 with main
Road 15 communicates.
The operation principle of combined type bottle valve of the present invention is：When being inflated into gas cylinder 29, people need to only pull handle 37
The first pin-and-hole 38 and the position of the second pin-and-hole 48 are overlapped, is inserted in using pin on the first pin-and-hole 38 and the second pin-and-hole 48, so
Can is inflated by the inlet chamber 2 of check valve into gas cylinder 29 afterwards, and in the process, cam 41 rotates, cam 41
Distal end can be pressed on lid 42, and the hinged place of cam 41 and push rod 36 can move up, so as to drive push rod 36 to move up,
Main spring 35 is compressed, and main valve 20 can be pressed on cone boss 18 under the elastic force effect of shutter spring 23, cut off
Stomata 19 communicates with relief chamber 25, that is, closes communicating for main channel 15 and outlet passageway 27, can smoothly pass through
Inflated into gas cylinder 29 main channel 15；When the gas after gas cylinder 29 outwards output decompression, on the contrary, people when operating process is with inflating
Only need to pull out pin, from outlet passageway 27 flow out gas be depressurize after gas, in the process, in main spring
In the presence of 35, push rod 36 can move down, and so as to be rotated with the opposite direction of fixed handle 37, make handle 37 straight up, cam 41
Proximal part can be pressed on lid 42, while push rod 36 moves down flexible sheet 31 can be promoted to deform downwards, promotes valve to push away
Bar 17 moves down, and live cover push-rod 17 promotes main valve 20 to move down, and air admission hole 19 is communicated with relief chamber 25, main channel 15
The effect of throttling and the expansion in relief chamber 25 that interior gases at high pressure pass through air admission hole 19 is changed into low-pressure gas again by going out
Stomata 26, outlet passageway 27, connector channel 46 flow out.
Embodiment described above is only that the preferred embodiment of the present invention is described, not to the model of the present invention
Enclose and be defined, on the premise of design spirit of the present invention is not departed from, technical side of the those of ordinary skill in the art to the present invention
The various modifications and improvement that case is made, it all should fall into the protection domain of claims of the present invention determination.
Claims (6)
- A kind of 1. combined type bottle valve, it is characterised in that：Including main valve body（16）, the main valve body（16）Right-hand member is used for and gas cylinder （29）Connection, the main valve body（16）It is provided with main channel（15）And outlet passageway（27）, the main channel（15）Right-hand member and gas Bottle（29）Communicate, the main channel（15）The main valve body of left end（16）On be connected with the check valve communicated therewith, the main channel （15）And outlet passageway（27）Between main valve body（16）The pressure-reducing valve with switching function is provided with, it is described that there is switching function Pressure-reducing valve refer to, the main valve body（16）Bottom is provided with and main valve body（16）The round platform being integral（21）, the round platform （21）Lower end is connected with lower cover（22）, the round platform（21）It is provided with relief chamber（25）, the relief chamber（25）Pass through venthole （26）With outlet passageway（27）Communicate, the relief chamber（25）The main valve body at top（16）It is provided with cone boss（18）, it is described Cone boss（18）On be communicated with main channel（15）With relief chamber（25）Air admission hole（19）, the relief chamber（25）It is interior from upper Main valve is sequentially provided with（20）, spring strut（24）And shutter spring（23）, the main valve（20）In relief chamber （25）It is interior to slide up and down, the shutter spring（23）It is enclosed on spring strut（24）Bottom and withstand on spring strut（24）With under Lid（22）Between, the spring strut（24）Positioned at main valve（20）In the inner chamber of bottom and withstand on main valve（20）On, it is described Main valve（20）Upper end be used for withstand on cone boss（18）On, the main valve body（16）Top be connected with sleeve（34）, set Cylinder（34）On be connected with lid（42）, upper lid（42）On be connected with bracket（40）, the sleeve（34）With main valve body（16）Between Provided with flexible sheet（31）, the bracket（40）It is provided with open slot（39）, the bracket（40）It is interior to be provided with cam（41）, it is described Cam（41）It is pressed in lid（42）On, the cam（41）Upper end is connected with and cam（41）The handle being integral（37）, institute State handle（37）Top is located at open slot（39）It is interior and can be in open slot（39）Interior swing, the sleeve（34）Inside from top to bottom according to It is secondary to be provided with gland（43）, main spring（35）And push rod（36）, the main spring（35）It is enclosed on push rod（36）Go up and withstand on push rod （36）With gland（43）Between, the gland（43）With sleeve（34）Connection, the push rod（36）Lower end withstands on flexible sheet （31）On, the push rod（36）Top sequentially passes through gland（43）With upper lid（42）With cam（41）It is be hinged, the main valve body （16）It is provided with live cover push-rod（17）, the live cover push-rod（17）Withstand on flexible sheet（31）And main valve（20）Between, it is described Handle（37）Top is provided with the first pin-and-hole（38）, the bracket is provided with the second pin-and-hole（48）, work as cam（41）Proximal part pressure In Shang Gai（42）When upper, handle（37）Straight up, cam is worked as（41）Distal end be pressed in lid（42）When upper, handle（37）Incline Tiltedly, the first pin-and-hole（38）With the second pin-and-hole（48）Position overlaps.
- 2. combined type bottle valve according to claim 1, it is characterised in that：The flexible sheet（31）With live cover push-rod （17）Between be provided with buffer, the buffer includes buffing pad（30）, buffer cover（33）And buffer spring（32）, it is described slow Punching lid（33）Upper end withstand on flexible sheet（31）On, lower end is inserted in buffing pad（30）On, the buffer spring（32）Positioned at slow Red seat（30）It is interior and withstand on buffer cover（33）With buffing pad（30）Between, the buffing pad（30）Lower end withstands on live cover push-rod（17） On.
- 3. combined type bottle valve according to claim 1 or 2, it is characterised in that：The check valve includes and main valve body （16）First valve body of connection（8）, first valve body（8）It is provided with inlet chamber（2）And and inlet chamber（2）The outlet communicated Chamber（10）, the outlet chamber（10）With main channel（15）Communicate, the inlet chamber（2）With outlet chamber（10）Between the first valve body （8）It is provided with ring-shaped step（7）, the inlet chamber（2）Screen pack is inside sequentially provided with from top to bottom（6）, packing ring（5）And locking screw Nail（4）, the lock-screw（4）It is provided with the first axially extending bore（3）, the screen pack（6）It is pressed on ring-shaped step（7）On, The packing ring（5）Pad is in screen pack（6）With lock-screw（4）Between, the lock-screw（4）With the first valve body（8）Connection, institute State outlet chamber（10）The first valve element is inside sequentially provided with from top to bottom（9）, the first spring（11）, spring base（12）And back-up ring （14）, the back-up ring（14）With the first valve body（8）Connection, the spring base（12）It is pressed in back-up ring（14）On, first spring （11）Withstand on spring base（12）With the first valve element（9）Between, first valve element（9）Upper end withstands on ring-shaped step（7）On, it is described Spring base（12）It is provided with the second axially extending bore（13）.
- 4. combined type bottle valve according to claim 3, it is characterised in that：The outlet passageway（27）Outlet on connect There is pipe joint（47）, the pipe joint（47）On connector channel（46）With outlet passageway（27）Communicate, the pipe joint（47） Safety valve is provided with, the safety valve includes and pipe joint（47）Second valve body of connection（51）, second valve body（51）On Provided with adjusting cavity（56）, the adjusting cavity（56）Bottom is provided with annular boss（54）, the annular boss（54）It is provided with connecing Head passage（46）The 3rd axially extending bore communicated（55）, the annular boss（54）The second other valve body（51）It is provided with and regulation Chamber（56）The steam vent communicated（53）, the adjusting cavity（56）Adjusting screw is inside sequentially provided with from top to bottom（49）, second spring （50）And second valve element（52）, second valve element（52）It is pressed in annular boss（54）On, the second spring（50）Withstand on Adjusting screw（49）With the second valve element（52）Between, the adjusting screw（49）With the second valve body（51）Connection.
- 5. combined type bottle valve according to claim 4, it is characterised in that：The main valve body（16）On be connected with pressure gauge （44）, the pressure gauge（44）Pass through wing passage（45）With main channel（15）Communicate.
- 6. combined type bottle valve according to claim 5, it is characterised in that：The main channel（15）Right-hand member is connected with filtering Device（28）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310142949.0A CN103267152B (en) | 2013-04-22 | 2013-04-22 | Combined type bottle valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310142949.0A CN103267152B (en) | 2013-04-22 | 2013-04-22 | Combined type bottle valve |
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| Publication Number | Publication Date |
|---|---|
| CN103267152A CN103267152A (en) | 2013-08-28 |
| CN103267152B true CN103267152B (en) | 2018-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310142949.0A Active CN103267152B (en) | 2013-04-22 | 2013-04-22 | Combined type bottle valve |
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| CN106169369B (en) * | 2016-09-14 | 2018-11-16 | 铜陵源丰电子有限责任公司 | A kind of motor-driven heat exchange type capacitor |
| CN107930352B (en) * | 2017-11-02 | 2020-09-01 | 合肥通用机械研究院有限公司 | Air drying system who contains combination valve |
| CN108626455A (en) * | 2018-05-03 | 2018-10-09 | 河南航天液压气动技术有限公司 | Bottle valve and cylinder package |
| CN109058539B (en) * | 2018-09-04 | 2024-03-12 | 杨小军 | Relief valve structure of lifesaving gas cylinder |
| CN109469755A (en) * | 2018-12-14 | 2019-03-15 | 江苏天海特种装备有限公司 | Fillers for dissolved acetylene cylinder solidifying pressure control device |
| CN111219591B (en) * | 2020-03-18 | 2024-05-10 | 航天金鹏科技装备（北京）有限公司 | Gas cylinder type pressure stabilizing dual-mode oxygen supply device |
| CN115382312A (en) * | 2022-07-22 | 2022-11-25 | 有研工程技术研究院有限公司 | Controllable gas flow direction purification column arranged in gas cylinder |
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| CN1118855A (en) * | 1993-06-03 | 1996-03-20 | 塔埃玛 | Device for controlling gas distribution and gas bottle with same |
| JP4336564B2 (en) * | 2003-11-04 | 2009-09-30 | 株式会社ネリキ | Flow rate setting device with relief mechanism |
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| CN103267152A (en) | 2013-08-28 |
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