CN109973671A - The accurate flow control valve of primary and secondary valve core type - Google Patents
The accurate flow control valve of primary and secondary valve core type Download PDFInfo
- Publication number
- CN109973671A CN109973671A CN201910271361.2A CN201910271361A CN109973671A CN 109973671 A CN109973671 A CN 109973671A CN 201910271361 A CN201910271361 A CN 201910271361A CN 109973671 A CN109973671 A CN 109973671A
- Authority
- CN
- China
- Prior art keywords
- valve
- sub
- main
- spool
- valve core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004891 communication Methods 0.000 claims abstract description 8
- 230000004323 axial length Effects 0.000 claims description 7
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 230000008676 import Effects 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
-
- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
Abstract
The present invention relates to a kind of accurate flow control valves of primary and secondary valve core type, the regulating valve includes valve body, it is mounted on the intracorporal main-valve core of valve and is mounted on the sub- spool of main-valve in-core, the inside of valve body is equipped with the inlet channel that is in communication with the outside with outlet flow and be connected to the valve body cavity of the two, the runner uniformly distributed along its periphery is equipped on sub- spool and main-valve core, by scalloped profile, arcuately scanning excision in path is formed the runner, the medium of circulation linearly becomes smaller by the circulation area of spool runner, the trend to become smaller simultaneously also gradually slows down, to realize the accurate adjusting of rate-of flow, furthermore, by being set with sub- spool in main-valve in-core, medium is further adjusted using the runner of sub- spool, the flow of medium Jing Guo the regulating valve is adjusted more accurate.
Description
Technical field
The present invention relates to the technical field of flow control valve, in particular to a kind of accurate flow control valve of primary and secondary valve core type.
Background technique
In the automatic control of modern plant, regulating valve is played a very important role, and the production of these factories is depended on
It correctly distributes and controls in the medium flowed, these controls either exchange of energy, reduction of pressure is either simple
Container charging, finally requires certain control elements and goes to complete, and for flow control valve, traditional flow control valve is used
Constant flow rate and time control, and flow control valve structure is more complicated, and flow degree of regulation is low, cannot want to the small flow of essence
The pipeline asked is accurately controlled, can only the flow to medium substantially controlled, be unable to satisfy the technology of modern production
It is required that therefore needing to research and develop a kind of flow control valve that can accurately control the flow of medium.
Summary of the invention
To solve the above-mentioned problems, the present invention proposes a kind of accurate flow control valve of primary and secondary valve core type.
Particular content is as follows: the accurate flow control valve of primary and secondary valve core type, which includes valve body, to be mounted on valve intracorporal
Main-valve core and the sub- spool for being mounted on main-valve in-core, it is characterized in that:
The inside of the valve body is equipped with the inlet channel being in communication with the outside, the outlet flow being in communication with the outside and in valve inner
It is connected to the valve body cavity of inlet channel and outlet flow, the inlet channel is cylinder；
The main-valve core be it is identical with inlet channel diameter cylindric, which coaxially fill in interior mounted in inlet channel and one
End is located in valve body cavity, and it is straight greater than main-valve core that one piece of diameter is coaxially fixed on the end face of one end that main-valve core is located in valve body cavity
It is diameter, discoid, with the matched female Seal end plate of valve body cavity, coaxially fix on the outer end face of the mother Seal end plate one it is outside
The main-valve bar of valve body is stretched out and passed through, is connected through a screw thread between the main-valve bar and valve body, the main-valve core is in female sealed end
It is equipped with spool chamber in one end where plate, is additionally provided with the subflow of connection inlet channel and spool chamber along its axial direction in main-valve in-core
Road is equipped with the overflow hole for radially running through main-valve core and being connected to spool chamber, the subflow road and spool chamber on main-valve core
Be it is cylindric and concentric with main-valve core, the diameter of spool chamber is greater than the diameter in subflow road, and the main-valve core is equipped with
The mother stock runner that is uniformly distributed and inwardly cutting off along its outer circumference surface, the mother stock runner is by scalloped profile arcuately path first scanning excision
To mother on the axis co-planar and the edge of one end from subflow road in inlet channel of formation, the curved path first and main-valve core
The outer circumference surface of spool stops；
The sub- spool be it is identical with sub- flow diameter cylindric, which coaxially fill in the subflow road and one end
It is greater than sub- valve core diameter in spool chamber, coaxially fixing one piece of diameter on the end face of one end that sub- spool is located in spool chamber
, it is discoid, with the matched sub- Seal end plate of spool chamber, one is coaxially fixed on the outer end face of the sub- Seal end plate to overhanging
Out and across the sub- valve rod of female Seal end plate and main-valve bar, the sub- valve rod and the interior spiral shell for axially penetrating through female Seal end plate and main-valve bar
It being formed and is threadedly coupled between pit, the sub- spool is equipped with the sub- runner that is uniformly distributed and inwardly cutting off along its outer circumference surface,
By scalloped profile, arcuately path second scanning excision is formed the sub- runner, the axis co-planar of the curved path second and sub- spool and
Outer circumference surface from the center of circle of the sub- spool in the end face in subflow road to sub- spool stops.
Preferably, the curved path first and curved path second are parabolical one section or one section elliptical.
Preferably, the curved path first and curved path second are parabolical one section, parabolical vertex difference
In the starting point of curved path first and curved path second, parabolical focus is respectively on the bus in subflow road and the axis of sub- spool
On line.
Preferably, the curved path first and curved path second are elliptical one section, a vertex point for transverse
Not Wei curved path first and curved path second starting point, elliptical focus is respectively on the bus in subflow road and the axis of sub- spool
On.
Preferably, the inlet channel on the valve body and outlet flow are respectively equipped with an inlet union and outlet connects
Head.
Preferably, a female handle is fixed on the free end of the main-valve bar, fixes one on the free end of sub- valve rod
Sub- handle.
Preferably, the axial length of main-valve core is matched with the lateral length of valve body cavity, the axis of the sub- spool
It is matched to length with the axial length of spool chamber.
Advantageous effects of the invention: a kind of accurate flow control valve of primary and secondary valve core type of the present invention, the regulating valve include
Valve body is mounted on the intracorporal main-valve core of valve and is mounted on the sub- spool of main-valve in-core, and the inside of valve body, which is equipped with, to be in communication with the outside
Inlet channel and outlet flow and the valve body cavity both being connected to are equipped with point uniformly distributed along its periphery on sub- spool and main-valve core
Runner, by scalloped profile, arcuately scanning excision in path is formed the runner, and the medium of circulation passes through the circulation of spool runner
Area linearly becomes smaller, while the trend to become smaller also gradually slows down, thus realize the accurate adjusting of rate-of flow, furthermore, pass through
It is set with sub- spool in main-valve in-core, medium is further adjusted using the runner of sub- spool, to by the regulating valve
The flow of medium adjusts more accurate.
Detailed description of the invention
Fig. 1 is the subjective structural schematic diagram of the accurate flow control valve of primary and secondary valve core type；
Fig. 2 is the subjective structural schematic diagram of main-valve core；
Fig. 3 is the schematic diagram of the section structure in the direction A-A in Fig. 2；
Fig. 4 is the schematic diagram of the section structure in the direction B-B in Fig. 2；
Fig. 5 is the subjective structural schematic diagram of sub- spool；
Fig. 6 is the schematic diagram of the section structure in the direction C-C in Fig. 5；
In figure: 1. valve bodies, 11. outlet flows, 12. outlet connections, 13. valve body cavities, 14. inlet unions, 15. inlet channels, 2.
Main-valve core, 21. main-valve bars, 22. female handles, 23. internal thread holes, 24. female Seal end plates, 25. spool chambers, 26. overflow holes, 27.
Mother stock runner, 28. subflow roads, the sub- spool in 29. curved path first, 3., 31. sub- valve rods, 32. sub- handles, 33. sub- Seal end plates,
34. sub- runner, 35. curved path first.
Specific embodiment
Embodiment one, referring to Fig. 1-6, the accurate flow control valve of primary and secondary valve core type, the regulating valve includes valve body, is mounted on valve
Intracorporal main-valve core and the sub- spool for being mounted on main-valve in-core,
The inside of the valve body is equipped with the inlet channel being in communication with the outside, the outlet flow being in communication with the outside and in valve inner
It is connected to the valve body cavity of inlet channel and outlet flow, the inlet channel is cylinder；
The main-valve core be it is identical with inlet channel diameter cylindric, which coaxially fill in interior mounted in inlet channel and one
End is located in valve body cavity, and it is straight greater than main-valve core that one piece of diameter is coaxially fixed on the end face of one end that main-valve core is located in valve body cavity
It is diameter, discoid, with the matched female Seal end plate of valve body cavity, coaxially fix on the outer end face of the mother Seal end plate one it is outside
The main-valve bar of valve body is stretched out and passed through, is connected through a screw thread between the main-valve bar and valve body, is connected through a screw thread and realizes spool
It adjusts, the main-valve core is equipped with spool chamber in one end where female Seal end plate, is additionally provided in main-valve in-core along its axial direction
It is connected to the subflow road of inlet channel and spool chamber, is equipped on main-valve core and is radially run through main-valve core and be connected to overflowing for spool chamber
Discharge orifice, the subflow road and spool chamber be it is cylindric and concentric with main-valve core, the diameter of spool chamber is greater than subflow road
Diameter, the main-valve core is equipped with mother stock runner that is uniformly distributed along its outer circumference surface and inwardly cutting off, and the mother stock runner is by fanning
Arcuately path first scanning excision is formed shape profile, the axis co-planar of the curved path first and main-valve core and from subflow road in import
It is risen on the edge of one end in runner to the outer circumference surface of main-valve core and is stopped；
The sub- spool be it is identical with sub- flow diameter cylindric, which coaxially fill in the subflow road and one end
It is greater than sub- valve core diameter in spool chamber, coaxially fixing one piece of diameter on the end face of one end that sub- spool is located in spool chamber
, it is discoid, with the matched sub- Seal end plate of spool chamber, one is coaxially fixed on the outer end face of the sub- Seal end plate to overhanging
Out and across the sub- valve rod of female Seal end plate and main-valve bar, the sub- valve rod and the interior spiral shell for axially penetrating through female Seal end plate and main-valve bar
It being formed and is threadedly coupled between pit, the sub- spool is equipped with the sub- runner that is uniformly distributed and inwardly cutting off along its outer circumference surface,
By scalloped profile, arcuately path second scanning excision is formed the sub- runner, the axis co-planar of the curved path second and sub- spool and
Outer circumference surface from the center of circle of the sub- spool in the end face in subflow road to sub- spool stops.
The curved path first and curved path second is parabolical one section or one section elliptical, also being capable of basis
Curved path is designed to other linear camber lines by actual needs.
The curved path first and curved path second is parabolical one section, and parabolical vertex is respectively on arc road
In the starting point of diameter first and curved path second, parabolical focus on the bus in subflow road and on the axis of sub- spool, makes respectively
Circulation area when medium is by sub- spool or main-valve core is linearly smaller, and smaller trend also gradually slows down.
The curved path first and curved path second is elliptical one section, and a vertex of transverse is respectively arc
The starting point of path first and curved path second, elliptical focus on the bus in subflow road and on the axis of sub- spool, make to be situated between respectively
Circulation area when matter is by sub- spool or main-valve core is linearly smaller, and smaller trend also gradually slows down.
Inlet channel and outlet flow on the valve body are respectively equipped with an inlet union and outlet connection, and being used for will
The present invention turns in corresponding pipeline.
A female handle is fixed on the free end of the main-valve bar, fixes a sub- handle on the free end of sub- valve rod.
The axial length of main-valve core is matched with the lateral length of valve body cavity, the axial length of the sub- spool with
The axial length of spool chamber matches.
The working principle of the invention and process:
The present invention is turned in corresponding pipeline by inlet union and outlet connection, the medium of circulation enters from inlet channel
It is flowed out by spool from outlet flow, makes main-valve core along the axial direction of inlet channel by rotating female handle (sub- handle is relatively motionless)
It is moved, to change the circulation area formed between the mother stock runner on main-valve core and inlet channel end face, and then is realized
The adjusting of circulation medium flow, while main-valve core being adjusted after suitable position, rotating sub- handle (female handle is relatively motionless) makes
Axial direction of the sub- spool along the subflow road of main-valve in-core is moved, to change the sub- runner on sub- spool and subflow road end face
Between the circulation area that is formed, the adjusting more accurate to rate-of flow is realized, due to above-mentioned sub- runner and mother stock runner
Circulation area linearly convert, and variation tendency is very slow, therefore when carrying out flow adjusting, rotate a circle spool or
Main-valve core, the variable quantity very little of rate-of flow, so as to realize the accurate adjusting of rate-of flow.
Claims (7)
1. the accurate flow control valve of primary and secondary valve core type, which includes valve body, is mounted on the intracorporal main-valve core of valve and is mounted on
The sub- spool of main-valve in-core, it is characterized in that:
The inside of the valve body is equipped with the inlet channel being in communication with the outside, the outlet flow being in communication with the outside and in valve inner
It is connected to the valve body cavity of inlet channel and outlet flow, the inlet channel is cylinder；
The main-valve core be it is identical with inlet channel diameter cylindric, which coaxially fill in interior mounted in inlet channel and one
End is located in valve body cavity, and it is straight greater than main-valve core that one piece of diameter is coaxially fixed on the end face of one end that main-valve core is located in valve body cavity
It is diameter, discoid, with the matched female Seal end plate of valve body cavity, coaxially fix on the outer end face of the mother Seal end plate one it is outside
The main-valve bar of valve body is stretched out and passed through, is connected through a screw thread between the main-valve bar and valve body, the main-valve core is in female sealed end
It is equipped with spool chamber in one end where plate, is additionally provided with the subflow of connection inlet channel and spool chamber along its axial direction in main-valve in-core
Road is equipped with the overflow hole for radially running through main-valve core and being connected to spool chamber, the subflow road and spool chamber on main-valve core
Be it is cylindric and concentric with main-valve core, the diameter of spool chamber is greater than the diameter in subflow road, and the main-valve core is equipped with
The mother stock runner that is uniformly distributed and inwardly cutting off along its outer circumference surface, the mother stock runner is by scalloped profile arcuately path first scanning excision
To mother on the axis co-planar and the edge of one end from subflow road in inlet channel of formation, the curved path first and main-valve core
The outer circumference surface of spool stops；
The sub- spool be it is identical with sub- flow diameter cylindric, which coaxially fill in the subflow road and one end
It is greater than sub- valve core diameter in spool chamber, coaxially fixing one piece of diameter on the end face of one end that sub- spool is located in spool chamber
, it is discoid, with the matched sub- Seal end plate of spool chamber, one is coaxially fixed on the outer end face of the sub- Seal end plate to overhanging
Out and across the sub- valve rod of female Seal end plate and main-valve bar, the sub- valve rod and the interior spiral shell for axially penetrating through female Seal end plate and main-valve bar
It being formed and is threadedly coupled between pit, the sub- spool is equipped with the sub- runner that is uniformly distributed and inwardly cutting off along its outer circumference surface,
By scalloped profile, arcuately path second scanning excision is formed the sub- runner, the axis co-planar of the curved path second and sub- spool and
Outer circumference surface from the center of circle of the sub- spool in the end face in subflow road to sub- spool stops.
2. the accurate flow control valve of primary and secondary valve core type according to claim 1, it is characterized in that: the curved path first and
Curved path second is parabolical one section or one section elliptical.
3. the accurate flow control valve of primary and secondary valve core type according to claim 2, it is characterized in that: the curved path first and
Curved path second is parabolical one section, parabolical vertex respectively in the starting point of curved path first and curved path second,
Parabolical focus is respectively on the bus in subflow road and on the axis of sub- spool.
4. the accurate flow control valve of primary and secondary valve core type according to claim 2, it is characterized in that: the curved path first and
Curved path second is elliptical one section, and a vertex of transverse is respectively the starting point of curved path first and curved path second,
Elliptical focus is respectively on the bus in subflow road and on the axis of sub- spool.
5. the accurate flow control valve of primary and secondary valve core type according to claim 1, it is characterized in that: the import on the valve body
Runner and outlet flow are respectively equipped with an inlet union and outlet connection.
6. the accurate flow control valve of primary and secondary valve core type according to claim 1, it is characterized in that: the freedom of the main-valve bar
A female handle is fixed on end, fixes a sub- handle on the free end of sub- valve rod.
7. the accurate flow control valve of primary and secondary valve core type according to claim 1, it is characterized in that: the axial direction of the main-valve core
Length is matched with the lateral length of valve body cavity, and the axial length of sub- spool is matched with the axial length of spool chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910271361.2A CN109973671B (en) | 2019-04-04 | 2019-04-04 | Primary and secondary valve core type accurate flow regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910271361.2A CN109973671B (en) | 2019-04-04 | 2019-04-04 | Primary and secondary valve core type accurate flow regulating valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109973671A true CN109973671A (en) | 2019-07-05 |
| CN109973671B CN109973671B (en) | 2024-04-12 |
Family
ID=67083031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910271361.2A Active CN109973671B (en) | 2019-04-04 | 2019-04-04 | Primary and secondary valve core type accurate flow regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109973671B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111022653A (en) * | 2019-11-18 | 2020-04-17 | 宁波奥克斯电气股份有限公司 | Electronic expansion valve, adjusting method and air conditioner |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU9701098A (en) * | 1997-12-11 | 1999-07-01 | Brian Anthony Robinson | Valve assembly |
| JP2008082440A (en) * | 2006-09-27 | 2008-04-10 | Casio Comput Co Ltd | Valve device, power generating set and electronic equipment |
| CN201925498U (en) * | 2010-11-19 | 2011-08-10 | 神华集团有限责任公司 | Reducing valve and fluid transmission system |
| CN201982751U (en) * | 2011-04-27 | 2011-09-21 | 黄建斌 | Adjusting valve |
| CN205261006U (en) * | 2015-12-29 | 2016-05-25 | 杭州华惠阀门有限公司 | Adjustment valve |
| CN106195410A (en) * | 2016-08-26 | 2016-12-07 | 成都欧浦特控制阀门有限公司 | Pneumatic control valve |
| CN209925645U (en) * | 2019-04-04 | 2020-01-10 | 新乡航空工业(集团)有限公司 | Master-slave valve core type accurate flow regulating valve |
-
2019
- 2019-04-04 CN CN201910271361.2A patent/CN109973671B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU9701098A (en) * | 1997-12-11 | 1999-07-01 | Brian Anthony Robinson | Valve assembly |
| JP2008082440A (en) * | 2006-09-27 | 2008-04-10 | Casio Comput Co Ltd | Valve device, power generating set and electronic equipment |
| CN201925498U (en) * | 2010-11-19 | 2011-08-10 | 神华集团有限责任公司 | Reducing valve and fluid transmission system |
| CN201982751U (en) * | 2011-04-27 | 2011-09-21 | 黄建斌 | Adjusting valve |
| CN205261006U (en) * | 2015-12-29 | 2016-05-25 | 杭州华惠阀门有限公司 | Adjustment valve |
| CN106195410A (en) * | 2016-08-26 | 2016-12-07 | 成都欧浦特控制阀门有限公司 | Pneumatic control valve |
| CN209925645U (en) * | 2019-04-04 | 2020-01-10 | 新乡航空工业(集团)有限公司 | Master-slave valve core type accurate flow regulating valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111022653A (en) * | 2019-11-18 | 2020-04-17 | 宁波奥克斯电气股份有限公司 | Electronic expansion valve, adjusting method and air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109973671B (en) | 2024-04-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103940159A (en) | Electronic expansion valve | |
| CN108518372B (en) | Automatic flow-regulating combined valve | |
| CN109973671A (en) | The accurate flow control valve of primary and secondary valve core type | |
| CN207715774U (en) | A kind of big flow fine adjustment valve | |
| CN106762860A (en) | A kind of fluid flow built-in stabilizers based on jet flow cavitation | |
| CN109990108A (en) | More specification spool combined type exact flow rate regulating valves | |
| CN209925645U (en) | Master-slave valve core type accurate flow regulating valve | |
| CN202834255U (en) | Flow control valve | |
| CN209925660U (en) | Multi-specification valve core combined type accurate flow regulating valve | |
| CN100378383C (en) | Differential pressure valve | |
| CN201672119U (en) | Pressure-difference-adjustable self-operated pressure-difference control valve | |
| CN205781083U (en) | A kind of double safety valve with flange | |
| CN211175431U (en) | Dynamic analog quantity balance valve body | |
| CN208831840U (en) | A kind of water flow automatic control and adjustment valve | |
| CN209469829U (en) | A kind of new-energy automobile threeway electronics water valve | |
| CN208719522U (en) | A kind of linkage valve | |
| CN209196147U (en) | A kind of balanced type three-way control valve | |
| CN108167252B (en) | Plug-in threeway one-way speed-regulating valve | |
| CN208295283U (en) | A kind of anti-vapour of High Pressure Difference is turbid to use screw channel formula spool control valve for small flows | |
| CN204267413U (en) | A kind of fine-tuning pressure controlled valve | |
| CN101324794A (en) | Linear flow regulation apparatus | |
| CN209026222U (en) | A kind of sealing external thread stop valve | |
| CN206409651U (en) | A kind of double-current adjustable valve | |
| CN107939777A (en) | A kind of external adjusts the orifice valve of damping | |
| CN205806562U (en) | Energy-saving Large Copacity precise pressure regulating valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20240315 Address after: 453000, Office Building for Metrology Experiment in Pingyuan Machinery Factory (Xinxiang), No.1 Jiefang Avenue (Middle Section), Muye District, Xinxiang City, Henan Province Applicant after: Aviation industry (Xinxiang) Measurement Technology Co.,Ltd. Country or region after: China Address before: 453049 No. 168 Jianshe Road Middle Road, Muye District, Xinxiang City, Henan Province Applicant before: XINXIANG AVIATION INDUSTRY (Group) Co.,Ltd. Country or region before: China |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |