CN106678405B - high pressure self-closing valve - Google Patents
high pressure self-closing valve Download PDFInfo
- Publication number
- CN106678405B CN106678405B CN201710073206.0A CN201710073206A CN106678405B CN 106678405 B CN106678405 B CN 106678405B CN 201710073206 A CN201710073206 A CN 201710073206A CN 106678405 B CN106678405 B CN 106678405B
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- valve
- rod
- cylinder
- handwheel
- sealing
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Classifications
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- 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
- F16K21/00—Fluid-delivery valves, e.g. self-closing valves
- F16K21/04—Self-closing valves, i.e. closing automatically after operation
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- 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
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- 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
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- 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/14—Actuating devices; Operating means; Releasing devices actuated by fluid for mounting on, or in combination with, hand-actuated valves
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanically-Actuated Valves (AREA)
- Lift Valve (AREA)
Abstract
The present invention relates to high pressure self-closing valves comprising valve body, handwheel, valve deck, valve body are equipped with import, outlet, gathering hole.The fore-stock and after-poppet of disjunctor are equipped in the valve body, fore-stock is equipped with valve port, and after-poppet is equipped with port；Cylinder body, valve rod, cylinder rod are equipped between fore-stock and after-poppet, cylinder body is fixed on after-poppet, and cylinder body is equipped with two sections of hydraulic cavities for being arranged and communicating in angle, the cylinder rod of wherein one section hydraulic cavities setting sliding extension, cylinder rod is towards gathering hole, the valve rod of another section of hydraulic cavities setting sliding extension, valve rod is towards valve port；Cylinder rod is in oriented sliding relative to valve body, and handwheel is in position rotating, handwheel and cylinder rod screw-thread fit relative to valve body；Valve rod stretches out valve deck of one end connection of cylinder body for closing fore-stock valve port.When rotation handwheel, handwheel pushes hydraulic cavities in cylinder rod compression cylinder, then pushes valve rod that valve deck is driven to open valve port, realizes valve conducting.Conversely, valve deck realizes that self-closing sealing, sealing are more reliable under valve body inlet pressure.
Description
Technical field
The present invention relates to valves, are a kind of high pressure self-closing valves.
Background technology
Valve is the control unit in fluid delivery system, has cut-off, adjusting, water conservancy diversion, prevents adverse current, voltage stabilizing, shunting
Or the functions such as overflow pressure relief, the requirement conveyed according to fluid system is generally required, adaptable valve is selected.Existing valve control
Mode processed be generally divided into manually, hydraulic pressure, electric and pneumatic, but these existing control modes, typically power section and valve
Valve head component is directly to link, i.e., the kind of drive is more direct.Such as hydraulic control, it is to be used as power part by hydraulic pump etc.
Part, the valve rod connected using hydraulic drive valve head directly drive valve head action to realize valve opening and closing.As Chinese patent literature is printed
The Authorization Notice No. CN2238354Y of load, authorized announcement date are on October 23rd, 1996, and utility model is entitled, and " hydraulic pressure is controlled automatically
Valve processed " comprising valve body and control valve, control valve top are connected with driving piston by valve rod, and valve rod center, which is equipped with, overflows
Recirculation hole, fluid media (medium) can enter upper piston area from bottom to top through the through-hole, and upper piston area is equipped with control hole, and control hole connection is outer
Portion's control pump, the delivery hole of control pump inlet connection valve body.The hydraulic automatic control valve is i.e. by control pump control valve door top
Chamber feed liquor, go out liquid, to the upper and lower pressure of regulating piston, realize valve opening and self-closing.This structure moves hydraulic part
To valve inner, to there is some superiority in volume, but it is more demanding with the matching precisions such as piston in valve body, it is easy because of matching mistake
Difference influences functional reliability.For this purpose, needing to be improved existing valve.
Invention content
To overcome above-mentioned deficiency, the purpose of the present invention is providing a kind of high pressure self-closing valve to this field, make its solution
The technical issues of existing valve volume is larger, and internal structure is complicated, function of self closing less reliable.The purpose is to pass through following skill
What art scheme was realized.
A kind of high pressure self-closing valve comprising valve body, handwheel, valve deck, valve body be equipped with import, outlet, gathering hole, and into
Mouth is straight-through with outlet.Its structural feature is to be equipped with the fore-stock and after-poppet of disjunctor in the valve body, described in fore-stock edge
To straight-through valve port of the direction equipped with conducting inlet and outlet is exported, after-poppet, which is equipped with, to be connected the import and exports logical for import
Mouthful；Core assembly is equipped between the fore-stock and after-poppet, core assembly includes cylinder body, cylinder rod, valve rod, and the cylinder body is fixed
In the after-poppet, and cylinder body is equipped with two sections of hydraulic cavities in angle setting, and two sections of hydraulic cavities are communicated by pipeline, wherein one section
The cylinder rod of sliding extension, the valve rod of another section of hydraulic cavities setting sliding extension is arranged in hydraulic cavities；Two sections of the cylinder body
The angle of hydraulic cavities makes cylinder rod towards the gathering hole, and the valve rod is towards the valve port；The cylinder rod is relative to the valve body
In oriented sliding, and cylinder rod is equipped with thread segment, the handwheel and cylinder rod screw-thread fit, and handwheel is revolved relative to valve body in positioning
Turn, i.e., hand wheel rotating links the cylinder rod opposing cylinder in telescopic slide；One end that the valve rod stretches out cylinder body is connected for putting down
Face seals the valve deck of the fore-stock valve port；Under original state, the valve deck closes valve port, and the import and outlet of the valve body are not
Conducting, when the hand wheel rotating pushes the cylinder rod, cylinder rod is corresponding by the hydraulic oil indentation valve rod of corresponding hydraulic cavities
Hydraulic cavities, valve rod push the valve deck to open the valve port, and import and the outlet of valve body are connected.Above structure and existing handwheel knot
The valve of structure is compared, and the main distinction is to be additionally arranged the housing structure of valve inner, the main function of the housing structure, one side
It is to be used for electronic-controlled power steering, i.e. the power of handwheel rotation forces cylinder rod turns to the power that valve deck is pushed for valve rod, to realize opening for valve port
It closes；On the other hand it is the characteristic that cylinder body inner sealing hydraulic environment and fluid flowing is utilized so that when handwheel carries out reset operation
When, cylinder rod coordinates the pressure of valve body import to generating certain negative pressure in cylinder body so that valve deck can be realized with valve port and be closed automatically
Sealing is closed, that is, realizes function of self closing, and when inlet pressure is bigger, self sealss effect is better, what is sealed under guarantee high pressure operating mode can
By property.In addition to this, fluid in cylinder body itself has certain cushioning effect so that valve deck opening and closing movement is more stable；Cylinder
It is flat seal between lid and valve port, not easy to wear while sealing reliability is high, service life is long.
In above-mentioned high pressure self-closing valve, the gathering hole of the valve body sets gradually sealing plate, guide-localization from the bottom to top
Plate, handwheel positioning plate, handwheel limit pressing plate, are formed and are slidingly sealed between the sealing plate and the cylinder rod, and sealing plate is by institute
It states and forms sealing between gathering hole and body cavity；The guide positioning plate is equipped with the rod aperture being slidably matched with the cylinder rod, bar
Hole is equipped with keyway, and feather key is equipped in keyway, and the cylinder rod is equipped with the sliding slot being slidably matched with feather key；The handwheel positioning plate
Equipped with turn hole, the handwheel is equipped with the runner in position rotating with turn hole cooperation, and runner is equipped with the spiral shell with cylinder rod screw-thread fit
Pit；The runner of the handwheel is limited in the turn hole by the handwheel limit pressing plate, and the handwheel limit pressing plate, handwheel are fixed
Position plate, guide positioning plate, sealing plate are fixedly connected by bolt with the valve body.This kind of sound construction is stablized, and installs and uses
It is more convenient reliable.
It is embedded location fit in above-mentioned high pressure self-closing valve, between the cylinder body and the after-poppet of the valve body, and
It is bolted.The structure equally more firm stable, facilitates installation.
In above-mentioned high pressure self-closing valve, the handwheel replaces with motor.The manual function that handwheel is substituted by motor, from
And realize and automatically control, it is more convenient laborsaving.
In above-mentioned high pressure self-closing valve, the cylinder body is equipped with the liquid feeding that pipeline communicates between two hydraulic cavities and connects
Mouthful, the valve body is equipped with liquid filling hole corresponding with cylinder body liquid feeding interface, and liquid filling hole thread seal connects the first sealing-plug, and first is close
Blocking is equipped with the interface block with liquid feeding interface sealing cooperation, and sealing ring is arranged in interface block；First sealing-plug is equipped with
The liquid feeding interface of cylinder body is conducted to the through-hole outside valve body, the external port thread seal of through-hole connects the second sealing-plug.It is above-mentioned
Structure is conducted to by the first sealing-plug outside valve body by adding liquid feeding interface on cylinder body, and by liquid feeding interface, not only side
Just to hydraulic cavities liquid feeding in cylinder body, change liquid operation, and when the structures such as handwheel break down, the liquid feed device of outside can be passed through
（Such as hydraulic pump）To carrying out interim pressure supply in cylinder body, to open valve, ensure normal work.In addition to this, the first sealing
Plug has supporting role to cylinder body, further increases cylinder body fixed stability in valve body.
In above-mentioned high pressure self-closing valve, reinforced by triangle reinforcing rib between the fore-stock and valve interior wall of the valve body
It is fixed.To enable fore-stock to successfully manage high pressure operating mode.It is arranged in 90 ° of angles between two sections of hydraulic cavities of the cylinder body.
Structure of the invention is relatively simple, reliable, can not only conveniently, effortlessly Open valve, and valve can realize it is self-closing close
Envelope, bigger with Fluid pressure, sealing effect is better, is suitable as each field Fluid valve, the especially use of high pressure valve, or
The structure of similar product is improved.
Description of the drawings
Fig. 1 is the schematic cross-sectional view of the present invention.
Fig. 2 is the improvement project schematic cross-sectional view of the present invention.
Serial number and entitled in figure：1, valve body, 101, import, 102, outlet, 103, gathering hole, 104, fore-stock, 105,
Valve port, 106, after-poppet, 2, handwheel, 201, runner, 3, handwheel limit pressing plate, 4, handwheel positioning plate, 5, guide positioning plate, 6, lead
Xiang Jian, 7, sealing plate, 8, cylinder body, 801, pipeline, 802, liquid feeding interface, 9, cylinder rod, 10, valve rod, 11, valve deck, the 12, first sealing
Plug, the 13, second sealing-plug.
Specific implementation mode
In conjunction with attached drawing, the invention will be further described.
As shown in Figure 1, the high pressure self-closing valve comprising valve body 1, core assembly, handwheel 2, handwheel limit pressing plate 3,
Handwheel positioning plate 5, guide positioning plate 6, sealing plate 7.Valve body is equipped with import 101, outlet 102, gathering hole 103, and import and goes out
Mouth is straight-through, and it is vertical that gathering hole leads directly to direction relative to this, and the fore-stock 104 and after-poppet 106 of disjunctor are equipped in valve body, preceding
Reinforce fixing by triangle reinforcing rib between holder and valve interior wall, fore-stock is equipped with conducting along import to straight-through direction is exported
The valve port 105 of inlet and outlet, after-poppet are equipped with the port of conducting import and outlet.Spool is equipped between fore-stock and after-poppet
Component, core assembly are made of cylinder body 8, cylinder rod 9, valve rod 10, valve deck 11, are embedded positioning between cylinder body and after-poppet and are passed through
Bolt is fixed.Cylinder body is equipped with two sections of hydraulic cavities in the setting of 90 ° of angles, and two sections of hydraulic cavities are communicated by pipeline 801, wherein one section
The cylinder rod of sliding extension is arranged in hydraulic cavities, and cylinder body is stretched out in cylinder rod one end, and stretches out gathering hole, and another section of hydraulic cavities setting sliding is stretched
The valve rod of contracting, cylinder body is stretched out towards valve port in valve rod one end, and the valve rod end is fixedly connected for flat seal fore-stock valve port
Valve deck.Gathering hole set gradually from the bottom to top sealing plate, guide positioning plate, handwheel positioning plate, handwheel limit pressing plate, sealing plate with
Cylinder rod formation is slidingly sealed, and sealing plate is fastened by bolts sealing with the stepped portions in valve operation mouth, i.e. sealing plate will
Sealing is formed between gathering hole and body cavity.Guide positioning plate is equipped with the rod aperture being slidably matched with cylinder rod, and key is equipped in rod aperture
Slot, keyway is interior to be fixedly installed feather key 6, and cylinder rod is equipped with the sliding slot being slidably matched with feather key in an axial direction, i.e. guide positioning plate makes
Cylinder rod is slided in guiding.Handwheel positioning plate is equipped with turn hole, and handwheel is equipped with the runner 201 in position rotating with turn hole cooperation, and turns
Wheel is equipped with the threaded hole with cylinder rod screw-thread fit, i.e. cylinder rod is additionally provided with thread segment in an axial direction.Handwheel limits pressing plate and turns handwheel
Wheel is limited in turn hole, and handwheel limit pressing plate, handwheel positioning plate, guide positioning plate pass through same bolt and valve operation mouth top
Portion fastens.
The working method of the high pressure self-closing valve is：Under original state, valve deck 11 closes valve port 105, the import of valve body 1
101 do not turn on outlet 102.When rotation handwheel 2, handwheel pushes cylinder rod 9 flexible relative to cylinder body 8 by screw thread, and cylinder rod will be right
It answers the hydraulic oil of hydraulic cavities in cylinder body to be pressed into 10 corresponding hydraulic cavities of valve rod, then pushes valve rod that valve deck is driven to open valve port,
The import of valve body realizes conducting with outlet.When needing close port, handwheel is inverted, handwheel reversely pushes cylinder rod by screw thread
It resetting, cylinder rod forms certain negative pressure to hydraulic cavities in cylinder body, while valve deck pushes valve rod to reset under inlet pressure effect, until
Valve deck close port.When valve deck close port, valve deck keeps self sealss, sealing more reliable under Fluid pressure effect.
As shown in Fig. 2, can also make following improvement to the present invention, it is easy to use to increase function.Cylinder body 8 is equipped with and two
The liquid feeding interface 802 that pipeline 801 communicates between hydraulic cavities, valve body 1 are equipped with liquid filling hole corresponding with cylinder body liquid feeding interface, liquid filling hole
Thread seal connects the first sealing-plug 12, and the first sealing-plug is equipped with the interface block with liquid feeding interface sealing cooperation, is set in interface block
Set sealing ring.First sealing-plug is equipped with is conducted to the through-hole outside valve body, the external port screw thread of through-hole by the liquid feeding interface of cylinder body
It is tightly connected the second sealing-plug 13.It is connected by the first sealing-plug by adding liquid feeding interface on cylinder body, and by liquid feeding interface
To valve body, not only facilitates to hydraulic cavities liquid feeding in cylinder body, changes liquid operation, and when the structures such as handwheel can not drive cylinder rod to act
When, the through-hole of the first sealing-plug can be connected by external hydraulic pump, to carrying out interim pressure supply in cylinder body, to open valve,
Ensure that valve normally works.
The above content is intended to illustrate the technological means of invention, not limits the technical scope of the present invention.Art technology
Personnel are the present invention in conjunction with existing common knowledge conspicuously improved, also fall under the scope of the present invention.
Claims (6)
1. a kind of high pressure self-closing valve comprising valve body（1）, handwheel（2）, valve deck（11）, valve body is equipped with import（101）, go out
Mouthful（102）, gathering hole（103）, and import and outlet are straight-through；It is characterized in that the valve body（1）The interior preceding branch equipped with disjunctor
Frame（104）And after-poppet（106）, fore-stock is along the import（101）To outlet（102）Straight-through direction be equipped with conducting import and
The valve port of outlet（105）, after-poppet is equipped with the port that the import and outlet is connected；It is equipped between the fore-stock and after-poppet
Core assembly, core assembly include cylinder body（8）, cylinder rod（9）, valve rod（10）, the cylinder body is fixed on the after-poppet, and cylinder body
Hydraulic cavities equipped with two sections in angle setting, two sections of hydraulic cavities pass through pipeline（801）It communicates, wherein one section of hydraulic cavities setting sliding
The flexible cylinder rod, the valve rod of another section of hydraulic cavities setting sliding extension；The angle of two sections of hydraulic cavities of the cylinder body makes
Cylinder rod is towards the gathering hole（103）, the valve rod is towards the valve port；The cylinder rod is slided relative to the valve body in orientation
It is dynamic, and cylinder rod is equipped with thread segment, the handwheel（2）With cylinder rod screw-thread fit, and handwheel is in position rotating, i.e. hand relative to valve body
Wheel rotation links the cylinder rod opposing cylinder in telescopic slide；One end connection that the valve rod stretches out cylinder body is used for flat seal institute
State the valve deck of fore-stock valve port（11）；Under original state, the valve deck closes valve port, and import and the outlet of the valve body are not led
Logical, when the hand wheel rotating pushes the cylinder rod, the hydraulic oil of corresponding hydraulic cavities is pressed into the corresponding liquid of the valve rod by cylinder rod
Press chamber, valve rod that the valve deck is pushed to open the valve port, import and the outlet of valve body are connected；The valve body（1）Gathering hole
（103）Sealing plate is set gradually from the bottom to top（7）, guide positioning plate（5）, handwheel positioning plate（4）, handwheel limit pressing plate（3）, institute
State sealing plate and the cylinder rod（9）Between formed and be slidingly sealed, and sealing plate is by the gathering hole and valve body（1）Shape between inner cavity
At sealing；The guide positioning plate is equipped with the rod aperture being slidably matched with the cylinder rod, and rod aperture is equipped with keyway, is equipped with and is oriented in keyway
Key（6）, the cylinder rod is equipped with the sliding slot being slidably matched with feather key；The handwheel positioning plate is equipped with turn hole, and the handwheel is equipped with
With turn hole cooperation in the runner of position rotating（201）, and runner is equipped with the threaded hole with cylinder rod screw-thread fit；The handwheel limit
The runner of the handwheel is limited in the turn hole by pressing plate, handwheel limit pressing plate, handwheel positioning plate, guide positioning plate,
Sealing plate is fixedly connected by bolt with the valve body.
2. high pressure self-closing valve according to claim 1, it is characterised in that the cylinder body（8）With the valve body（1）'s
After-poppet（106）Between be embedded location fit, and be bolted.
3. high pressure self-closing valve according to claim 1, it is characterised in that the handwheel（2）Replace with motor.
4. high pressure self-closing valve according to claim 1, it is characterised in that the cylinder body（8）Equipped with two liquid
Pipeline between pressure chamber（801）The liquid feeding interface communicated（802）, the valve body（1）Equipped with liquid feeding corresponding with cylinder body liquid feeding interface
Hole, liquid filling hole thread seal connect the first sealing-plug（12）, the first sealing-plug is equipped with to be connect with what liquid feeding interface sealing coordinated
Mouth seat, interface block is interior to be arranged sealing ring；First sealing-plug is equipped with is conducted to leading to outside valve body by the liquid feeding interface of cylinder body
The external port thread seal in hole, through-hole connects the second sealing-plug（13）.
5. high pressure self-closing valve according to claim 1, it is characterised in that the valve body（1）Fore-stock（104）With
Reinforce fixing by triangle reinforcing rib between valve interior wall.
6. high pressure self-closing valve according to claim 1, it is characterised in that the cylinder body（8）Two sections of hydraulic cavities between
It is arranged in 90 ° of angles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710073206.0A CN106678405B (en) | 2017-02-10 | 2017-02-10 | high pressure self-closing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710073206.0A CN106678405B (en) | 2017-02-10 | 2017-02-10 | high pressure self-closing valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106678405A CN106678405A (en) | 2017-05-17 |
| CN106678405B true CN106678405B (en) | 2018-10-19 |
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ID=58860913
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710073206.0A Active CN106678405B (en) | 2017-02-10 | 2017-02-10 | high pressure self-closing valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN106678405B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107297505A (en) * | 2017-08-18 | 2017-10-27 | 谭颖 | One kind building aqueduct valve switch |
| CN107654658A (en) * | 2017-09-27 | 2018-02-02 | 颜巨祥 | A kind of biconial fluid pressure type valve |
| CN107842618B (en) * | 2017-12-05 | 2024-04-30 | 博纳斯威阀门股份有限公司 | Hydraulic transmission bidirectional sealing axial flow type stop valve |
| CN108167453B (en) * | 2018-01-22 | 2024-04-02 | 博纳斯威阀门股份有限公司 | Hydraulic transmission bidirectional sealing flow regulating pressure regulating valve |
| CN110454590B (en) * | 2019-09-06 | 2024-02-13 | 四川赫菲斯托气化发电设备有限公司 | Fluid valve for biomass processing system |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2112053U (en) * | 1991-04-30 | 1992-08-05 | 张亚雄 | Timing self-closed water valve |
| RU2255262C1 (en) * | 2003-11-18 | 2005-06-27 | Открытое акционерное общество "НПО "Промавтоматика" | Stop control valve |
| CN201218219Y (en) * | 2008-07-11 | 2009-04-08 | 湖南泵阀制造有限公司 | Sleeve type multi-functional water power control valve |
| CN103836254B (en) * | 2013-11-21 | 2016-09-28 | 周明泉 | A kind of noiselessness automatic controlled water pump control valve |
| US10036480B2 (en) * | 2014-10-31 | 2018-07-31 | Fisher Controls International Llc | Clamped bonnet assembly for an axial flow valve and axial flow valve comprising same |
| CN205918957U (en) * | 2016-08-02 | 2017-02-01 | 台州市鹏和自动化设备有限公司 | One -way governing valve of liquid accuse |
-
2017
- 2017-02-10 CN CN201710073206.0A patent/CN106678405B/en active Active
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| CN106678405A (en) | 2017-05-17 |
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Effective date of registration: 20221010 Address after: 710000 5th floor, plant 103, Xirui Industrial Park, No. 569, Jincheng Third Road, economic and Technological Development Zone, Xi'an, Shaanxi Province Patentee after: XI'AN ANCN SMART INSTRUMENT Inc. Patentee after: Hangzhou Ansen Intelligent Information Technology Co.,Ltd. Address before: 315175 No. 899 College Road, Haishu District, Ningbo City, Zhejiang Province Patentee before: Huang Jiting |
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