CN104633264B - Gas pressure reducing valve - Google Patents
Gas pressure reducing valve Download PDFInfo
- Publication number
- CN104633264B CN104633264B CN201510082050.3A CN201510082050A CN104633264B CN 104633264 B CN104633264 B CN 104633264B CN 201510082050 A CN201510082050 A CN 201510082050A CN 104633264 B CN104633264 B CN 104633264B
- Authority
- CN
- China
- Prior art keywords
- gas
- valve seat
- gas pressure
- hole
- intercommunicating pore
- 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.)
- Active
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/08—Means in valves for absorbing fluid energy for decreasing pressure or noise level and having a throttling member separate from the closure member, e.g. screens, slots, labyrinths
Abstract
The invention discloses a gas pressure reducing valve. The gas pressure reducing valve comprises a valve seat, a valve bonnet, a pressure reducing mechanism and an adjusting mechanism, wherein the valve seta is matched with the valve bonnet, the pressure reducing mechanism comprises a top block, a connector, a moving part and an elastic part, the valve sat is provided with a mounting groove, the elastic part is arranged in the mounting groove, the connector is matched with the mounting groove, the moving part is arranged in the connector, and two ends of the moving part are abutted against the top block and the elastic part respectively. The top block contacts with the adjusting mechanism, the adjusting mechanism can push the top block and the moving part to move and is mounted on the valve bonnet, the valve seat is provided with a gas inlet and a gas outlet, the connector is provided with a first communication hole, and the gas inlet and the gas outlet are communicated through the first communication hole. The gas pressure reducing valve can adjust gas pressure controllably, gas can be converted into low-pressure gas effectively, gas is saved, and the gas pressure reducing valve has the advantages of simple structure, reasonable mounting structure and convenience in use.
Description
Technical field
The invention belongs to a kind of welding gun air pressure reducer, especially relate to a kind of gas pressure reducer.
Background technology
Existing gas pressure reducer much exist structure owe rationally, the gas pressure that bears is big and cannot buffer etc. and to lack
Point, have impact on the welding quality in welding for the welding gun, and structure is more complicated increases processing cost.Meanwhile, existing gas subtracts
Pressure valve much air pressure can not be reduced to reasonable air pressure so that inflation in the tracheal strips of welding gun, causes the wave of gas resource
Take；And the effect of easing stress of gas pressure reducer is fixing it is impossible to need to be adjusted according to welding so that different welding guns uses
Different occasions need accordingly to change corresponding gas pressure reducer, cause using inconvenience.
Content of the invention
It is an object of the invention to provide a kind of gas pressure reducer, can solve the problem that at least one of the problems referred to above.
According to an aspect of the invention, it is provided a kind of gas pressure reducer, including valve seat, valve gap, the mechanism of decompressor and tune
Section mechanism, valve seat is matched with valve gap, and the mechanism of decompressor includes jacking block, connector, movable part and elastic component, and valve seat offers installation
Groove, elastic component is arranged in mounting groove, and connector is matched with mounting groove, movable part be located at connector in, and two ends respectively with
Jacking block and elastic component abut against, and jacking block is contacted with governor motion, and governor motion can promote jacking block and movable part to move, and adjusts
Mechanism is arranged on valve gap, and valve seat offers air inlet and gas outlet, and connector offers the first intercommunicating pore, air inlet with give vent to anger
Mouth is connected by the first intercommunicating pore.
The invention has the beneficial effects as follows：It is provided with the mechanism of decompressor, so that the gases at high pressure being entered by air inlet are through decompression
After the buffering of mechanism decompression obtain low-pressure gas, after through gas outlet flow out.Gases at high pressure enter through air inlet, and gas reaches peace
In tankage, through elastic component and movable part, the first connection in the hole entering into connector is so that gases at high pressure flow after buffering
Go out, finally obtain smooth smoothly low-pressure gas output, other pressure obtaining are little, the tracheae not air-blowing of welding gun reaches province's gas
Purpose, and structure is simple, and mounting structure is reasonable.Meanwhile, it is provided with governor motion and can promote jacking block, jacking block promotes movable part to move
Dynamic, and then have adjusted the space in mounting groove and the gas entering the first intercommunicating pore, the final output pressure adjusting gas outlet,
Facilitate the air pressure adjustment of whole gas pressure reducer, can be adjusted according to use demand, easy to use.
In some embodiments, governor motion can include adjusting screw rod, compression spring and sealing ring, sealing ring and top
Block contacts, and sealing ring is set in valve gap, and the two ends of compression spring are contacted with adjusting screw rod and sealing ring respectively, adjusts spiral shell
Bar is to threaded with valve gap, and adjusting screw rod can promote compression spring and sealing ring to move.Thus, it is provided with adjusting screw rod permissible
By the movement of the extension and contraction control jacking block of adjusting screw rod, thus realizing the change of output pressure, convenient control；Being provided with sealing ring can
To prevent the leakage of the gas in valve gap and valve seat it is ensured that sealing, prevent gas leakage.
In some embodiments, valve seat is provided with cavity, and cavity is connected with the first intercommunicating pore, and gas enters after cavity
Gas outlet.Thus, being provided with cavity, so that being depressured further in cavity by the gas of the first intercommunicating pore output, improving fall
Pressure effect.
In some embodiments, valve seat is provided with damping hole and the second intercommunicating pore, and damping hole is connected by second with cavity
Hole connects, and cavity is connected with gas outlet by damping hole.Thus, being provided with damping hole can make to reach the gas of gas outlet in cavity
Buffer further, so that air pressure is reduced further.
In some embodiments, it is provided with bolt at damping hole, bolt is connected with damping hole inner thread.Thus, it is provided with
Bolt can prevent gas from leaking when damping hole, makes the gas in valve seat keep sealing.
In some embodiments, gas pressure reducer can also include outlet pressure table, and outlet pressure table is arranged on first
On installing hole, on valve seat, the first installing hole is connected the first installing hole with damping hole, between gas outlet and the first installing hole
Offer third connecting hole, damping hole is connected with gas outlet by the first installing hole.Thus, it is provided with outlet pressure table, Ke Yifang
Just user reads the pressure learning effluent air, can adjust governor motion according to atmospheric pressure value.
In some embodiments, gas pressure reducer can also include boost gauge, valve seat be provided with the second installing hole and
4th intercommunicating pore, boost gauge is arranged on the second installing hole, and the 4th intercommunicating pore is connected with air inlet, and boost gauge passes through
4th intercommunicating pore is connected with air inlet.Thus, it is provided with boost gauge, can be read by this boost gauge and enter gas
Air pressure, and then can according to this air pressure adjust governor motion so that the air pressure of gas outlet meets use requirement, convenient use.
In some embodiments, connector is hollow bolt, and the threaded portion of hollow bolt is to threaded with mounting groove,
The external diameter of the head of hollow bolt is more than the internal diameter of mounting groove, and the first intercommunicating pore is at head.Thus, it is possible to pass through connector
With the adjustment of the contact area of mounting groove inwall, change the gas held space in mounting groove, control the buffer level of gas.
In some embodiments, governor motion can also include the first compressing tablet and the second compressing tablet, the first compressing tablet and second
Compressing tablet is located at the both sides of sealing ring respectively, and pinch seal circle, and sealing ring is contacted with jacking block by the first compressing tablet, by second
Compressing tablet is contacted with compression spring.Thus, it is provided with the first compressing tablet and the second compressing tablet, jacking block and compression spring can be prevented direct and close
Seal contacts, and prevents sealing ring from deforming in the presence of jacking block and compression spring it is ensured that gas in gas pressure reducer
Sealing.
Brief description
Fig. 1 is the cross section structure diagram separated with valve gap of valve seat of gas pressure reducer of the present invention；
Fig. 2 is the left view structural representation of the valve seat in Fig. 1；
Fig. 3 is the structural representation of the mechanism of decompressor in gas pressure reducer of the present invention.
Specific embodiment
The present invention is further detailed explanation below in conjunction with the accompanying drawings.
With reference to shown in Fig. 1, Fig. 2 and Fig. 3:Gas pressure reducer, including valve seat 1, valve gap 2, the mechanism of decompressor 3 and governor motion 4,
Valve seat 1 is matched with valve gap 2, and valve seat 1 offers external screw thread, and valve gap 2 inwall offers internal thread, and valve seat 1 passes through spiral shell with valve gap 2
Line connects；Both are the threaded space size that can facilitate between regulating valve seat 1 and valve gap 2 inside.
The mechanism of decompressor 3 includes jacking block 31, connector 32, movable part 33 and elastic component 34, and elastic component 34 is arranged on mounting groove
In 11, connector 32 is matched with mounting groove 11, and wherein, elastic component 34 can be spring, and connector 32 is hollow bolt.Valve seat
1 offers mounting groove 11, and mounting groove 11 is stepped, and the internal diameter of mounting groove 11 top cell body is minimum, and the internal diameter of bottom cell body is
Greatly, the internal diameter of central slot is between the two.Wherein, the external diameter one of the internal diameter of mounting groove 11 top cell body and elastic component 34
Cause so that when elastic component 34 is arranged in mounting groove 11, mounting groove 11 positions to elastic component 34, convenient installation；Mounting groove 11 bottom
The inwall of end slot body offers screw thread, and the threaded portion of hollow bolt is to be connected by screw thread with mounting groove 11.Open up on valve seat 1
There is air inlet 12, air inlet 12 is opened at the central slot of mounting groove 11, mounting groove 11 is stepped to can ensure that air inlet
Gases at high pressure at 12 can smoothly enter in mounting groove 11, prevents connector 32 from blocking air inlet 12, structure design when tightening
More reasonable, optimize and use.
Movable part 33 is located in connector 32, and two ends are abutted against with jacking block 31 and elastic component 34 respectively, jacking block 31 with adjust
Section mechanism 4 contacts, and governor motion 4 can promote jacking block 31 and movable part 33 to move, and governor motion 4 is arranged on valve gap 2, valve
Seat 1 offers gas outlet 13, and connector 32 offers the first intercommunicating pore 5, and air inlet 12 passes through the first intercommunicating pore 5 with gas outlet 13
It is connected.The cross section of movable part 33 is in regular hexagon, the internal diameter one of the hollow hole 323 of the external diameter of movable part 33 and connector 32
Cause, reached after mounting groove 11 by the gases at high pressure that air inlet 12 enters, enter in the space between connector 32 and movable part 33.
Thus, each part of space in mounting groove 11 for the gases at high pressure and the mechanism of decompressor 3 is buffered so that gases at high pressure are flat
Position low-pressure gas, reaches the purpose of step-down.
In actual use, elastic component 34 can be withstood in order to ensure movable part 33, on the end face of movable part 33
Integrally formed with pilot pin 331, the external diameter of movable part 33 is more than the external diameter of elastic component 34, in pilot pin 331 insertion elastic component 34,
When preventing from installing and using, elastic component 34 is moved under external force, convenient installs it is ensured that movable part 33 and elastic component 34
Intermolecular forces transmission.
The external diameter of the head 321 of hollow bolt is more than the maximum inner diameter of mounting groove 11, and the first intercommunicating pore 5 is located at head 321
Place, the first intercommunicating pore 5 is connected with the hollow hole 323 of connector 32.
Jacking block 31 includes thimble 311, core 312 and the protuberance 313 being sequentially connected, and jacking block 31 is formed in one structure,
Thimble 311 inserts in the hollow hole 323 of connector 32, and the external diameter of thimble 311 is less than the internal diameter of hollow hole 323, outside core 312
Footpath is consistent with the internal diameter of hollow hole 323, and protuberance 313 is located at outside hollow hole 323.Thimble 311 can promote movable part 33 to move
Dynamic, when the end contact of end face and the connector 32 of protuberance 313, core 312 corresponding with the first intercommunicating pore 5 so that in warp
The gas that emptying aperture 323 enters into the first intercommunicating pore 5 is minimum；When thimble 311 and the first intercommunicating pore 5 to corresponding when enter through hollow hole 323
Enter most to the gas of the first intercommunicating pore 5.
Be provided with boss 322 in the middle part of the hollow hole 323 of connector 32, the top end face of connector 32 and convex 322 distance with
The equal length of movable part 33, so that whole movable part 33 is located in hollow hole 323；When movable part 33 and boss
During 322 contact, thimble 311 is corresponding with the first intercommunicating pore 5, and the gas entering into the first intercommunicating pore 5 through hollow hole 323 is most.By
This, simplify the structure of the mechanism of decompressor 3, compact conformation.
Governor motion 4 includes adjusting screw rod 41, compression spring 42 and sealing ring 43, and sealing ring 43 is contacted with jacking block 31,
Sealing ring 43 is set in valve gap 2, the contact internal walls of the outward flange of sealing ring 43 and valve gap 2.The two ends of compression spring 42 are respectively
Contact with adjusting screw rod 41 and sealing ring 43, adjusting screw rod 41 is to threaded with valve gap 2, by rotating adjusting screw rod 41 energy
Enough promote compression spring 42 and sealing ring 43 mobile.
Governor motion 4 also includes the first compressing tablet 44 and the second compressing tablet 45, and the first compressing tablet 44 and the second compressing tablet 45 are located at respectively
The both sides of sealing ring 43, and it is bolted pinch seal circle 43, sealing ring 43 is connected with jacking block 31 by the first compressing tablet 44
Touch, contacted with compression spring 42 by the second compressing tablet 45.
Adjusting screw rod 41 promotes compression spring 42 for convenience, is provided with jacking block between adjusting screw rod 41 and compression spring 42
46, the external diameter of jacking block 46 is consistent with the external diameter of compression spring 42, facilitates the effect of adjusting screw rod 41.
Valve seat 1 offers cavity 14, and cavity 14 is connected with the first intercommunicating pore 5, and gas enters gas outlet after cavity 14
13.It is provided with cavity 14, the first intercommunicating pore 5 effluent air can be depressured further, the mechanism of decompressor 3 can be facilitated in peace simultaneously
Install in tankage 11.
Valve seat 1 offers damping hole 15 and the second intercommunicating pore 16, and damping hole 15 and cavity 14 pass through the second intercommunicating pore 16 even
Logical, cavity 14 is connected with gas outlet 13 by damping hole 15.It is provided with bolt 6, bolt 6 and damping hole 15 inwall spiral shell at damping hole 15
Line connects, and by bolt 6, damping hole 15 is sealed, and prevents gas from leaking.
The gas pressure reducer of the present invention also includes outlet pressure table 7, and outlet pressure table 7 is arranged on the first installing hole 17,
First installing hole 17 is opened on valve seat 1, and the first installing hole 17 is connected by the 5th intercommunicating pore 20 with damping hole 15, and the 5th even
Through hole 20 is opened on valve seat 1, offers third connecting hole 18 between gas outlet 13 and the first installing hole 17, and damping hole 15 passes through
First installing hole 17 is connected with gas outlet 13.
The gas pressure reducer of the present invention also includes boost gauge 8, and valve seat 1 is provided with the second installing hole 19 and the 4th intercommunicating pore
9, boost gauge 8 is arranged on the second installing hole 19, and the 4th intercommunicating pore 9 is connected with air inlet 12, and boost gauge 8 passes through the
Four intercommunicating pores 9 are connected with air inlet 12.
The gas pressure reducer of the present invention, when using, uses safety to be further ensured that, prevents in valve seat 1 and valve gap 2
Air pressure too high, pressure relief vent 21 is offered on valve gap 2, pressure relief vent 21 be located at sealing ring 43 lower section (i.e. compression spring 42 institute
In side).When the air pressure in cavity 14 is excessive and acts on sealing ring 43 so that when sealing ring 43 deforms, in cavity 14
Gas can discharge it is therefore prevented that because of cavity 14 through pressure relief vent 21 in the gap between the sealing ring 43 after deformation and valve gap 2
Internal gas pressure is excessive and damages gas pressure reducer, and ensure that the use safety of user.
The use of this gas pressure reducer for convenience, is connected with connecting rod 10 at air inlet 12, and one end of connecting rod 10 is passed through
Screw thread is connected with air inlet 12, and the other end is arranged with nut, is connected with the interface of gas storage tank by nut, facilitates gas
The installation of pressure-reducing valve.Meanwhile, it has been threaded connection outlet nozzle at gas outlet 13, facilitated the tracheae phase of gas outlet 13 and welding gun
Connect.
Operationally, gases at high pressure, after air inlet 12 entrance, enter in mounting groove 11 gas pressure reducer of the present invention,
Then reach in cavity 14 through the mechanism of decompressor 3 and the first intercommunicating pore 5, gases at high pressure obtain low pressure gas through the mechanism of decompressor 3 decompression
Body, due to the volume of cavity 14 larger so that gas is depressured again.Meanwhile, the gas entering in air inlet 12 passes through the 4th even
Through hole 9 reaches the pressure that can learn the gas entering at air inlet 12 at boost gauge 8 by boost gauge 8.Cavity
Gas in 14 reaches damping hole 15 through the second intercommunicating pore 16, and after reaching damping hole 15, gas reaches through the 5th intercommunicating pore 20 and gives vent to anger
Pressure gauge 7, measures the pressure value of the low-pressure gas after decompression；Meanwhile, the gas in damping hole 15 reaches through third connecting hole 18
Gas outlet 13, low-pressure gas is smooth smoothly to be exported.
It is provided with boost gauge 8 and reading that outlet pressure table 7 can be shown by dial plate is adjusted to governor motion 4
Section, can adjust the gas pressure of output to required pressure value, improve pressure output control accuracy.
In order to turn down the air pressure of output gas, turn adjusting screw rod 41, make adjusting screw rod 41 pass through compression spring 42 and the
One compressing tablet 44 promotes jacking block 31 to top one side shifting of mounting groove 11 so that the valve element 312 gradually hollow hole with connector 32
323 corresponding so that through hollow hole 323 flow to the first intercommunicating pore 5 gas reduce, so that gas is obtained more after the mechanism of decompressor 3
Hypobaric gas.Conversely, when needing the higher gas of output pressure, to opposite direction turn adjusting screw rod 41 so that through in
The gas phase that emptying aperture 323 flow to the first intercommunicating pore 5 should increase, and meets use requirement.
The main body section of the valve seat 1 in the gas pressure reducer of the present invention is cylindrical, by air inlet 12, gas outlet 13, damping
Hole 15 and the second installing hole 19 are distributed on the periphery of the main part of valve seat 1 so that the equal non-interference in each hole, and facilitate each hole
Open up and each hole at part installation, reasonable in design, convenient use.Meanwhile, in the top one of the main part of valve seat 1
Form hemispherical erecting bed, facilitate opening up of the first installing hole 17, facilitate the installation of outlet pressure table 7, and this hemispherical
The outward flange of erecting bed, without departing from the edge of main body section, saves material.
Above-described is only the preferred embodiment of the present invention it is noted that for those of ordinary skill in the art
For, without departing from the concept of the premise of the invention, some deformation can also be made and improve, these broadly fall into the present invention
Protection domain.
Claims (8)
1. gas pressure reducer, wherein, including valve seat (1), valve gap (2), the mechanism of decompressor (3) and governor motion (4), described valve seat
(1) match with valve gap (2), the described mechanism of decompressor (3) includes jacking block (31), connector (32), movable part (33) and elastic component
(34), described valve seat (1) offers mounting groove (11), and described elastic component (34) is arranged in mounting groove (11), described connector
(32) match with mounting groove (11), described movable part (33) be located at connector (32) in, and two ends respectively with jacking block (31) and
Elastic component (34) abuts against, and described jacking block (31) is contacted with governor motion (4), and described governor motion (4) can promote jacking block
(31) move with movable part (33), described governor motion (4) is arranged on valve gap (2), and described valve seat (1) offers air inlet
(12) and gas outlet (13), described connector (32) offers the first intercommunicating pore (5), described air inlet (12) and gas outlet (13)
It is connected by the first intercommunicating pore (5)；
Described connector (32) is hollow bolt, and the threaded portion of described hollow bolt is to threaded with mounting groove (11), described
The external diameter of the head (321) of hollow bolt is more than the internal diameter of mounting groove (11), and described first intercommunicating pore (5) is located at described head
(321) place.
2. gas pressure reducer according to claim 1, wherein, described governor motion (4) includes adjusting screw rod (41), compression
Spring (42) and sealing ring (43), described sealing ring (43) is contacted with jacking block (31), and described sealing ring (43) is set in valve gap
(2), in, the two ends of described compression spring (42) are contacted with adjusting screw rod (41) and sealing ring (43) respectively, described adjusting screw rod
(41) with valve gap (2) for threadeding, described adjusting screw rod (41) can promote compression spring (42) and sealing ring (43) mobile.
3. gas pressure reducer according to claim 1 and 2, wherein, described valve seat (1) is provided with cavity (14), described cavity
(14) it is connected with the first intercommunicating pore (5), gas enters gas outlet (13) after described cavity (14).
4. gas pressure reducer according to claim 3, wherein, described valve seat (1) is provided with damping hole (15) and connects with second
Hole (16), described damping hole (15) is connected by the second intercommunicating pore (16) with cavity (14), and described cavity (14) passes through damping hole
(15) connect with gas outlet (13).
5. gas pressure reducer according to claim 4, wherein, described damping hole (15) place is provided with bolt (6), described bolt
(6) it is connected with damping hole (15) inner thread.
6. gas pressure reducer according to claim 5, wherein, also includes outlet pressure table (7), described outlet pressure table
(7) be arranged on the first installing hole (17), described first installing hole (17) on valve seat (1), described first installing hole (17)
It is connected with damping hole (15), between described gas outlet (13) and the first installing hole (17), offer third connecting hole (18), institute
State damping hole (15) to connect with gas outlet (13) by the first installing hole (17).
7. gas pressure reducer according to claim 1, wherein, also includes boost gauge (8), described valve seat (1) is provided with
Second installing hole (19) and the 4th intercommunicating pore (9), described boost gauge (8) is arranged on the second installing hole (19), and described
Four intercommunicating pores (9) are connected with air inlet (12), and described boost gauge (8) passes through the 4th intercommunicating pore (9) and air inlet (12) phase
Connection.
8. gas pressure reducer according to claim 2, wherein, described governor motion (4) also include the first compressing tablet (44) and
Second compressing tablet (45), described first compressing tablet (44) and the second compressing tablet (45) are located at the both sides of sealing ring (43) respectively, and clamp close
Seal (43), described sealing ring (43) is contacted with jacking block (31) by the first compressing tablet (44), by the second compressing tablet (45) and pressure
Contracting spring (42) contacts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510082050.3A CN104633264B (en) | 2015-02-13 | 2015-02-13 | Gas pressure reducing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510082050.3A CN104633264B (en) | 2015-02-13 | 2015-02-13 | Gas pressure reducing valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104633264A CN104633264A (en) | 2015-05-20 |
| CN104633264B true CN104633264B (en) | 2017-02-22 |
Family
ID=53212329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510082050.3A Active CN104633264B (en) | 2015-02-13 | 2015-02-13 | Gas pressure reducing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104633264B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105534144A (en) * | 2016-01-08 | 2016-05-04 | 长沙鹏跃五洋信息科技有限公司 | Cooling mat |
| CN105534146A (en) * | 2016-01-08 | 2016-05-04 | 长沙鹏跃五洋信息科技有限公司 | Cooling mat |
| CN105662005A (en) * | 2016-01-08 | 2016-06-15 | 长沙鹏跃五洋信息科技有限公司 | Cooling pad |
| CN105534145A (en) * | 2016-01-08 | 2016-05-04 | 长沙鹏跃五洋信息科技有限公司 | Cooling mat |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2202313A (en) * | 1937-11-10 | 1940-05-28 | Marvin H Grove | Fluid pressure regulator |
| US6161573A (en) * | 1999-05-13 | 2000-12-19 | Sheng; Chih-Sheng | Air pressure regulator |
| CN101280857B (en) * | 2008-05-15 | 2012-05-16 | 王扬平 | Balance pressure water compensating valve |
| CN204437459U (en) * | 2015-02-13 | 2015-07-01 | 王少华 | Gas pressure reducer |
-
2015
- 2015-02-13 CN CN201510082050.3A patent/CN104633264B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104633264A (en) | 2015-05-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104633264B (en) | Gas pressure reducing valve | |
| CN100541379C (en) | Decompressor | |
| CN108953994A (en) | Hydrogen fuel cell unmanned plane high pressure gas cylinder cylinder valve | |
| CN110792816A (en) | Novel integrated multifunctional pressure reducing valve | |
| CN204437459U (en) | Gas pressure reducer | |
| CN103291986A (en) | Directly-operated type reducing valve | |
| CN114321711A (en) | One-way bottleneck valve suitable for torch is handed to hydrogen energy | |
| CN210178941U (en) | Gas regulator suitable for low pressure gas pipe network | |
| CN209671698U (en) | A kind of overflow valve | |
| CN208579149U (en) | A kind of hydrogen fuel cell unmanned plane high pressure gas cylinder cylinder valve | |
| CN210461828U (en) | Flow differential pressure setting valve | |
| CN111623154A (en) | Gas pressure regulator | |
| CN209278556U (en) | Hydrogen-feeding system integral type regulator | |
| CN114033880B (en) | High-pressure hydrogen pressure reducing valve | |
| CN114352937B (en) | Lightweight pressure reduction hydrogen supply device suitable for hydrogen energy handheld torch | |
| CN210830637U (en) | Safety valve structure for piston type pressure reducer | |
| CN210623722U (en) | Pressure regulator | |
| CN208816758U (en) | Pressure adjustable safety valve | |
| CN208503120U (en) | A kind of bellows-type accumulator | |
| CN209654713U (en) | The pilot valve of pressure reducing valve | |
| CN216479136U (en) | Novel pressure reducing valve for high-pressure hydrogen | |
| CN201779320U (en) | Novel gas reducing valve | |
| CN212429879U (en) | Ultrahigh pressure sealing structure for pressure regulator | |
| CN215334696U (en) | Low-temperature pressure increasing valve with good sealing performance | |
| CN110686109A (en) | Pressure regulator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |