CN106122752A - A kind of rapid vacuumizing and the apparatus and method of inflation - Google Patents
A kind of rapid vacuumizing and the apparatus and method of inflation Download PDFInfo
- Publication number
- CN106122752A CN106122752A CN201610658446.2A CN201610658446A CN106122752A CN 106122752 A CN106122752 A CN 106122752A CN 201610658446 A CN201610658446 A CN 201610658446A CN 106122752 A CN106122752 A CN 106122752A
- Authority
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- China
- Prior art keywords
- air bag
- gas storage
- storage cavity
- inflation
- folding
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17B—GAS-HOLDERS OF VARIABLE CAPACITY
- F17B1/00—Gas-holders of variable capacity
- F17B1/02—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17B—GAS-HOLDERS OF VARIABLE CAPACITY
- F17B1/00—Gas-holders of variable capacity
- F17B1/02—Details
- F17B1/12—Gas admission or discharge arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17B—GAS-HOLDERS OF VARIABLE CAPACITY
- F17B1/00—Gas-holders of variable capacity
- F17B1/24—Gas-holders of variable capacity of dry type
Abstract
The invention belongs to evacuator technical field, a kind of rapid vacuumizing and apparatus and method of inflation in airtight cavity are provided, including gas storage cavity, the trachea assembly for evacuation and inflation being connected on described gas storage cavity and the emptying assembly coordinated with described gas storage cavity, described emptying assembly includes the air bag that can fill up gas storage cavity, the folding and unfolding valve member passing in and out described air bag for controlling ambient atmos being connected on described gas storage cavity debouches the control assembly in described air storing cavity body with the described air bag of control, described air bag is provided with opening, described opening is sealedly connected on described folding and unfolding valve member, and the evacuation implemented by said apparatus and inflation；So design can solve the direct evacuation of airtight cavity and gas replenishment process speed problem slow, inefficient.
Description
Technical field
The invention belongs to evacuator technical field, particularly relate to a kind of rapid vacuumizing and inflation in airtight cavity
Apparatus and method.
Background technology
In fields such as 3D printing, material molding, in order to metal material is not oxidized in high temperature environments, generally require close
The cavity closed is filled with the protective gas such as nitrogen or noble gas, to printing or the process of molding etc. carries out the isolation of air
Protection, to promote the performance of effect and product.Current way is, uses vaccum-pumping equipment, the air in airtight cavity is taken out
Go out, the most again noble gas is filled in airtight cavity.But, the process of evacuation slowly, vacuum as requested
The difference of degree, the shortest, need several tens minutes, long then several hours, even up to ten several hours because along with air is got over
Coming the thinnest, inside and outside pressure differential is increasing, and the difficulty of the air in extracting cavity body is the most increasing.Manufacturing process
In, occupy substantial amounts of preparation non-cutting time, have a strong impact on the efficiency of production.
Summary of the invention
It is an object of the invention to provide the device of a kind of rapid vacuumizing and inflation, it is intended to solve airtight cavity and directly take out
Vacuum and gas replenishment process speed problem slow, inefficient.
The present invention is so to solve: a kind of rapid vacuumizing and the device of inflation, including gas storage cavity, be connected to described
The trachea assembly for evacuation and inflation on gas storage cavity and the emptying assembly coordinated with described gas storage cavity, described emptying
Assembly include filling up gas storage cavity air bag, be connected on described gas storage cavity pass in and out described gas for controlling ambient atmos
The folding and unfolding valve member of capsule and the described air bag of control debouch the control assembly in described air storing cavity body, and described air bag is provided with out
Mouthful, described opening is sealedly connected on described folding and unfolding valve member.
The technique effect that the rapid vacuumizing of present invention offer and the device of inflation have relative to existing technology is: take out
Time empty, in negative pressure in air storing cavity body, control air bag enter in air storing cavity body by folding and unfolding valve member and control assembly, by
Enter air in inside air bag so that air bag enters and fill gas storage cavity so that air pressure in air storing cavity body maintain stably or
It is unlikely to reduce, thus the air being difficult to be pumped in realizing air storing cavity body discharges, and then realize evacuation rapidly and efficiently, whole
During individual, owing to air bag opening is sealedly connected on folding and unfolding valve member, and then ensure that the sealing in air storing cavity body, with
Time air in the negative pressure in air storing cavity body and positive differential pressure in air bag make air storing cavity body when evacuating the most all discharge,
Thus solve existing device and evacuate speed slowly, inefficient problem.
The present invention also provides for a kind of method of rapid vacuumizing and inflation, by aforesaid rapid vacuumizing and the dress of inflation
Put and realize, comprise the following steps:
Evacuation: extract the gas in described gas storage cavity out by trachea assembly, regulate described folding and unfolding valve member simultaneously
For aeration status, make gas enter air bag, make described air bag enter described gas storage cavity and gradually expansion fill up described air storing cavity
Body, is discharged by the gas in air storing cavity body described in the air pressure auxiliary pushing in described air bag；
Inflation: inflated to described gas storage cavity by described trachea assembly, is then regained described air bag and makes it remove institute
Stating gas storage cavity, regulating described folding and unfolding valve member is closed mode.
The technique effect that the rapid vacuumizing of present invention offer and the method for inflation have relative to existing vacuum-pumping method
For: realizing rapid evacuation and inflation by the release of air bag with reclaiming to assist, whole implementation process is simply efficient, and then can be very
The earth improves the efficiency produced.
Accompanying drawing explanation
Fig. 1 is the rapid vacuumizing that provides of the embodiment of the present invention and the structure chart of device of inflation.
Fig. 2 is the rapid vacuumizing that provides of the embodiment of the present invention and the internal structure schematic diagram of device of inflation.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, right
The present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, and
It is not used in the restriction present invention.
It should be noted that when element is referred to as " being fixed on " or " being arranged at " another element, and it can be directly separately
On one element or be connected on this another element.When an element is known as " being connected to " another element, and it can
To be directly to another element or to be indirectly connected on this another element.
Also, it should be noted the orientation term such as left and right, upper and lower in the embodiment of the present invention, it it is only relative concept each other
Or with the normal operating condition of product as reference, and should not be regarded as restrictive.
Refer to shown in accompanying drawing 1 and Fig. 2, in this utility model embodiment, it is provided that a kind of rapid vacuumizing and inflation
Device, the trachea assembly 20 for evacuation and inflation including gas storage cavity 10, being connected on gas storage cavity 10 and and gas storage
The emptying assembly 30 that cavity 10 coordinates, this trachea assembly 20 connects and has on electromagnetic valve 203, and this trachea assembly 20 and be also connected with
Have matched supplying gas or air extractor, this emptying assembly 30 include elastic filling up the air bag 301 within gas storage cavity 10,
The control assembly that the folding and unfolding valve member 302 being connected on gas storage cavity 10 and control air bag 301 debouch in gas storage cavity 10
303, this folding and unfolding valve member 302 is used for controlling ambient atmos and passes in and out this air bag 301, and this air bag 301 is provided with and is in communication with the outside
Opening 3011, this opening 3011 is sealedly connected on folding and unfolding valve member 302, the outside of this air bag 301 evacuate time at the uniform velocity
In entering into gas storage cavity 10 and be attached on the inwall of gas storage cavity 10, and then all air in gas storage cavity 10 are all arranged
Going out, the inside of this air bag 301 is in communication with the outside, namely this air bag 301 is that the air passing into air bag 301 is by air bag
It is attached on the inwall of gas storage cavity 10 after 301 supports are big.
The rapid vacuumizing more than designed and the device of inflation, during evacuation, in negative pressure in gas storage cavity 10, by folding and unfolding valve
Door assembly 302 and control assembly 303 control air bag 301 and at the uniform velocity enter in gas storage cavity 10, enter owing to air bag 301 is internal
Air so that air bag 301 enters and fill gas storage cavity 10, thus the air being difficult in realizing gas storage cavity 10 be pumped is discharged
Go, and then realize evacuation rapidly and efficiently, whole during, owing to air bag 301 opening 3011 is sealedly connected on folding and unfolding valve group
On part 302, and then ensure that the sealing in gas storage cavity 10, the negative pressure in gas storage cavity 10 and air bag when evacuating simultaneously
Positive differential pressure in 301 makes the air in gas storage cavity 10 the most all discharge, thus solves existing device and evacuate speed
Degree is slow, inefficient problem.
Specifically he, as depicted in figs. 1 and 2, in embodiments of the present invention, this trachea assembly 20 includes being connected to gas storage cavity
The air inlet pipe 201 of 10 upper ends and escape pipe 202, this air inlet pipe 201 and escape pipe 202 all connect with in gas storage cavity 10, this electricity
Magnet valve 203 includes the charge valve 2031 being connected in air inlet pipe 201 and the evacuation valve 2032 being connected on escape pipe 202.
In the present embodiment, this gas storage cavity 10 is 3D printing, material molding or the storage protection gas of other equipment
Device.Three basic paths, an escape pipe connected in vacuum-pumping pipeline, namely the present embodiment is had above its cavity wall
202, protective gas pipeline, namely the air inlet pipe 201 in the present embodiment are filled in a connection, and one connects air bag 301 folding and unfolding pipeline,
Namely aforesaid folding and unfolding valve member 302 in the present embodiment.
In the present embodiment, this charge valve 2031 is used for unlatching and the Guan Bi of air inlet pipe 201, and its one end connects gas storage cavity
10, the other end connects the gas storage bottle needing to fill；Evacuation completes to open when inflation starts, and closes when having inflated.This is taken out
Empty valve 2032 is used for unlatching and the Guan Bi of escape pipe 202, and its one end connects cavity, and the other end connects vaccum-pumping equipment, evacuation
Shi Kaiqi, closes when evacuation completes.
Specifically he, as depicted in figs. 1 and 2, in embodiments of the present invention, this folding and unfolding valve member 302 includes along air storing cavity
Outward extending tube-like piece 3021, the ball valve 3022 being connected in tube-like piece 3021 and be connected to tube-like piece in the middle of body 10 lower end
On 3021 and control ball valve 3022 rotate driving assembly 3023, this ball valve 3022 is rotatably connected in tube-like piece 3021, and
And realize the sealing in tube-like piece 3021 and unlatching along with turning to different angles, this tube-like piece 3021 and gas storage cavity 10
Connection, and on this ball valve 3022, offer the columnar through holes (not shown) passed through for ambient atmos and this air bag 301, this tubulose
Preferably it is provided with projection on part 3021 at corresponding ball valve 3022, namely the diameter of this ball valve 3022 is more than this tube-like piece 3021 non-convex
Play the diameter of part, so can be designed so that the ball valve 3022 better tightness in tube-like piece.
In the present embodiment, this ball valve 3022 is by driving assembly 3023 to carry out the rotation of special angle when driving, when it
During columnar through holes and tube-like piece 3021 coaxial, gas storage cavity 10 connects with tube-like piece 3021, when the columnar through holes of ball valve 3022
Axially and during tube-like piece 3021 axially vertical, tube-like piece 3021 is sealed by this ball valve 3022, simultaneously this driving assembly 3023
On be additionally provided with position detection encoder (not shown), this position detection arranging of encoder ball valve 3022 can be detected further
Location, thus control to drive assembly 3023 rotate or maintain the position residing for ball valve 3022 according to carrying out step
Put.
Specifically he, as depicted in figs. 1 and 2, in embodiments of the present invention, this air bag 301 takes the shape of a bag when expanding, this air bag
301 are fixedly connected on tube-like piece 3021 inwall along opening 3011, namely the shape of this air bag 301 opening 3011 and tube-like piece
The shape of 3021 cross sections is consistent, and opening 3011 part of this air bag 301 is fixedly connected on tubulose preferably by flange arrangement
On the inwall of part 3021, and this opening 3011 is preferably connected to the lower section of ball valve 3022, namely this ball valve 3022 away from
The side of gas storage cavity 10, when so design can ensure that inflation in gas storage cavity 10, by closing ball valve 3022 so that gas
Capsule 301 cannot enter back in gas storage cavity 10.
Specifically he, as depicted in figs. 1 and 2, in embodiments of the present invention, this control assembly 303 includes housing unexpansive
The folding and unfolding chamber 3031 of the air bag 301 under state and the reel assembly being connected in folding and unfolding chamber 3031, this folding and unfolding chamber 3031 is connected to
The end of tube-like piece 3021, and this folding and unfolding chamber 3031 connects with tube-like piece 3021, and the opening 3011 of this air bag 301 seals simultaneously
It is connected to described ball valve 3022 and described folding and unfolding chamber 3031；This reel assembly includes actuator 3033 and is connected to actuator 3033
On spool 3032, on this spool 3032 connect have retractable cable 3034, this retractable cable 3034 one end is fixedly connected on air bag 301
Inside bottom, and the other end is connected on spool 3032.
In the present embodiment, this folding and unfolding chamber 3031 is in communication with the outside by fit-up gap, and this spool 3032 or drive
It is additionally provided with pulling force induction apparatus (not shown) on moving part 3033, connects with extraneous due to the fit-up gap of itself due to folding and unfolding chamber 3031
Logical, and then when evacuation in gas storage cavity 10, ball valve 3022 is opened, owing to the air in gas storage cavity 10 is pulled out, and then
Pressure in gas storage cavity 10 is less than atmospheric pressure, and now the air extrusion in folding and unfolding chamber 3031 is positioned on tube-like piece 3021 inwall
Opening 3011, after the pulling force induction apparatus on spool 3032 or actuator 3033 detects certain value of thrust, this pulling force is
Owing to the pressure differential of air bag 301 both sides makes retractable cable implement spool 3032 or actuator 3033, this actuator 3033
Start to drive this spool 3032 to rotate so that air bag 301 enters after the columnar through holes on ball valve 3022 and tube-like piece 3021
In gas storage cavity 10, owing to escape pipe 202 continues in emptying, ball valve 3022 is in open mode, and gas enters into air bag 301
In, and then the part that air bag 301 enters in gas storage cavity 10 expands rapidly, is then fitted on the inwall of gas storage cavity 10,
In this process, spool 3032 uniform rotation always, control air bag 301 and enter the speed of gas storage cavity 10, so can be by
Air in gas storage cavity 10 progressively empties.
In the present embodiment, this retractable cable 3034 one end is connected to the inside bottom of air bag 301, refers to leave mouth bottom this
3011 farthest places, this retractable cable 3034 other end is intertwined and connected on spool 3032, is at the uniform velocity rotated by spool 3032, makes
Obtain retractable cable 3034 progressively to discharge, and then the height that air bag 301 is in gas storage cavity 10 is gradually increasing, and is finally full of whole gas storage
Cavity 10, and then complete the emptying in gas storage cavity 10.
In the present embodiment, this air bag 301 is preferably and is made up of high resiliency thin film, and so air bag 301 of design has relatively
High elasticity and toughness, can be attached on the internal chamber wall of gas storage cavity 10 in the case of having external and internal pressure difference tightly,
And then the air in extruding gas storage cavity 10.
Specifically, in embodiments of the present invention, this spool 3032 rotates release or the speed reclaiming retractable cable 3034 and goes back
Can with air bag 301 inside and outside pressure differential positive correlation, namely spool 3032 rotate speed according to stretching force detecting apparatus examine
Air in gas storage cavity 10, to carry out adaptive adjustment, so can be emptied by pulling force quickly that measure.
Or, this spool 3032 rotate release or reclaim retractable cable 3034 speed with can also with air bag 301 inside and outside two
The pressure differential of side is uncorrelated, namely this spool 3032 full name remains a constant speed rotation, and so design can avoid air bag 301 to cross F.F.
Enter to make in gas storage cavity 10 problem that local gas in gas storage cavity 10 cannot be discharged.
Certainly, the velocity of rotation of spool 3032 can also is that first uniform rotation, then accelerates to rotate, owing to just starting gas storage
Air in cavity 10 is more, it is ensured that air bag 301 can avoid at the uniform velocity entering into gas storage cavity 10 air of corner parts without
Method is discharged, and the later stage is few due to the air surplus in gas storage cavity 10, and air bag 301 accelerates into can be quickly by remaining sky
Gas is discharged, thus improves the efficiency of production.
The present invention also provides for a kind of method of rapid vacuumizing and inflation, and it is by aforesaid rapid vacuumizing and inflation
Device is implemented, and specifically includes following steps；
Vacuum, first closes charge valve 2031, opens evacuation valve 2032 simultaneously and rotate ball valve 3022 to making tubulose
Part 3021 connects with air bag 301, and now the air in gas storage cavity 10 is discharged through escape pipe 202 and air pressure inside reduced, so
After back pull induction apparatus detects pulling force, actuator 3033 drives this spool 3032 to rotate backward release retractable cable 3034, this gas
Capsule 301 progresses into and fills up described gas storage cavity 10 by tube-like piece 3021；
Gas replenishment process, after vacuum completes, first closes evacuation valve 2032, opens charge valve 2031, then simultaneously
Actuator 3033 drives this spool 3032 to rotate forward withdrawal retractable cable 3034 the most completely, treats that air bag 301 is fully retrieved to receive
After putting chamber 3031, it is then shut off ball valve 3022 and charge valve 2031.
By above-mentioned steps, the release of air bag 301 is utilized to realize rapid evacuation and inflation with reclaiming to assist, whole enforcement
Process is simply efficient, and then can improve the efficiency of production greatly.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Any amendment, equivalent and the improvement etc. made within god and principle, should be included within the scope of the present invention.
Claims (10)
1. a rapid vacuumizing and the device of inflation, it is characterised in that: include gas storage cavity, be connected on described gas storage cavity
The trachea assembly for evacuation and inflation and the emptying assembly that coordinates with described gas storage cavity, described emptying assembly includes can
The air bag filling up gas storage cavity, the folding and unfolding valve passing in and out described air bag for controlling ambient atmos being connected on described gas storage cavity
Door assembly and control described air bag debouch the control assembly in described air storing cavity body, described air bag is provided with opening, described in open
Mouth is sealedly connected on described folding and unfolding valve member.
2. rapid vacuumizing as claimed in claim 1 and the device of inflation, it is characterised in that: described trachea assembly includes connecting
Air inlet pipe and escape pipe, described air inlet pipe and described escape pipe in described gas storage cavity upper end all connect with in described air storing cavity body
Logical, described device also includes the charge valve being connected in described air inlet pipe and the evacuation valve being connected on described escape pipe.
3. rapid vacuumizing as claimed in claim 1 and the device of inflation, it is characterised in that: described folding and unfolding valve member includes
In the middle of described gas storage cavity lower end, outward extending tube-like piece, rotary seal are connected to the ball valve in described tube-like piece and connection
On described tube-like piece and control described ball valve rotate driving assembly, described tube-like piece connects with described gas storage cavity, described
Supplied gas is offered and columnar through holes that described air bag passes through on ball valve.
4. rapid vacuumizing as claimed in claim 3 and the device of inflation, it is characterised in that: the opening of described air bag is connected to
On described tube-like piece inwall, and it is positioned at the described ball valve side away from described gas storage cavity.
5. rapid vacuumizing as claimed in claim 3 and the device of inflation, it is characterised in that: described control assembly includes holding
Put the folding and unfolding chamber of the described air bag under described non-expansion state, be connected to the spool of described folding and unfolding intracavity, and be used for driving institute
Stating the actuator that spool rotates, described actuator connects has retractable cable, one end of described retractable cable to be connected to described air bag
Inside bottom, described folding and unfolding chamber is connected to the end of described tube-like piece, and described folding and unfolding chamber connects with described tube-like piece, described gas
The opening of capsule is sealedly attached between described ball valve and described folding and unfolding chamber.
6. rapid vacuumizing as claimed in claim 5 and the device of inflation, it is characterised in that: described actuator controls described volume
Axle uniform rotation discharges or reclaims described retractable cable.
7. rapid vacuumizing as claimed in claim 5 and the device of inflation, it is characterised in that: described spool rotates release or returns
Receive the pressure differential positive correlation inside and outside the speed of described retractable cable and described air bag.
8. rapid vacuumizing as claimed in claim 5 and the device of inflation, it is characterised in that: assembly building is passed through in described folding and unfolding chamber
Gap is in communication with the outside, and described driving spool is additionally provided with pulling force induction apparatus.
9. the rapid vacuumizing as described in any one of claim 1-8 and the device of inflation, it is characterised in that: described air bag is high
Elastic film air bag.
10. a rapid vacuumizing and the method for inflation, it is characterised in that: fast by as described in any one of claim 1-9
The device of speed evacuation and inflation realizes, and comprises the following steps:
Evacuation: extracting the gas in described gas storage cavity out by trachea assembly, it is logical for regulating described folding and unfolding valve member simultaneously
Gaseity, makes gas enter air bag, make described air bag enter described gas storage cavity and gradually expansion fill up described gas storage cavity, logical
Cross the gas in air storing cavity body described in the air pressure auxiliary pushing in described air bag to discharge；
Inflation: inflated to described gas storage cavity by described trachea assembly, is then regained described air bag and makes it remove described storage
Air cavity, regulating described folding and unfolding valve member is closed mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610658446.2A CN106122752B (en) | 2016-08-11 | 2016-08-11 | A kind of rapid vacuumizing and the device and method of inflation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610658446.2A CN106122752B (en) | 2016-08-11 | 2016-08-11 | A kind of rapid vacuumizing and the device and method of inflation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106122752A true CN106122752A (en) | 2016-11-16 |
| CN106122752B CN106122752B (en) | 2018-09-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610658446.2A Active CN106122752B (en) | 2016-08-11 | 2016-08-11 | A kind of rapid vacuumizing and the device and method of inflation |
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| Country | Link |
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| CN (1) | CN106122752B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111453171A (en) * | 2020-04-07 | 2020-07-28 | 唐太明 | Banding structure, accomodate bag and accomodate equipment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201245774Y (en) * | 2008-08-20 | 2009-05-27 | 何伟才 | Vacuum washing machine |
| CN102241308A (en) * | 2010-05-10 | 2011-11-16 | 孟翔飞 | Tank with air bag |
| CN102393134A (en) * | 2011-11-04 | 2012-03-28 | 合肥华宇橡塑设备有限公司 | Device for gas displacement of working chambers of oven and sintering furnace |
| CN202549152U (en) * | 2012-04-08 | 2012-11-21 | 谢成强 | Intelligible submarine model |
| KR101324379B1 (en) * | 2011-08-01 | 2013-11-01 | 주식회사 포스코 | Water sealing type valve assembly for release pipe of gas holder and water sealing method using the same |
| CN205956746U (en) * | 2016-08-11 | 2017-02-15 | 深圳市圆梦精密技术研究院 | Quick evacuation and gas filled device |
-
2016
- 2016-08-11 CN CN201610658446.2A patent/CN106122752B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201245774Y (en) * | 2008-08-20 | 2009-05-27 | 何伟才 | Vacuum washing machine |
| CN102241308A (en) * | 2010-05-10 | 2011-11-16 | 孟翔飞 | Tank with air bag |
| KR101324379B1 (en) * | 2011-08-01 | 2013-11-01 | 주식회사 포스코 | Water sealing type valve assembly for release pipe of gas holder and water sealing method using the same |
| CN102393134A (en) * | 2011-11-04 | 2012-03-28 | 合肥华宇橡塑设备有限公司 | Device for gas displacement of working chambers of oven and sintering furnace |
| CN202549152U (en) * | 2012-04-08 | 2012-11-21 | 谢成强 | Intelligible submarine model |
| CN205956746U (en) * | 2016-08-11 | 2017-02-15 | 深圳市圆梦精密技术研究院 | Quick evacuation and gas filled device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111453171A (en) * | 2020-04-07 | 2020-07-28 | 唐太明 | Banding structure, accomodate bag and accomodate equipment |
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| Publication number | Publication date |
|---|---|
| CN106122752B (en) | 2018-09-21 |
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