CN105508676B - A kind of bidirectional traffics control valve - Google Patents
A kind of bidirectional traffics control valve Download PDFInfo
- Publication number
- CN105508676B CN105508676B CN201610012721.3A CN201610012721A CN105508676B CN 105508676 B CN105508676 B CN 105508676B CN 201610012721 A CN201610012721 A CN 201610012721A CN 105508676 B CN105508676 B CN 105508676B
- Authority
- CN
- China
- Prior art keywords
- regulating valve
- boss
- support
- spring
- fixed seat
- 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
- 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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
- F16K17/22—Excess-flow valves actuated by the difference of pressure between two places in the flow line
- F16K17/24—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member
- F16K17/26—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in either direction
-
- 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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
- F16K17/22—Excess-flow valves actuated by the difference of pressure between two places in the flow line
- F16K17/24—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member
- F16K17/28—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only
- F16K17/30—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only spring-loaded
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D7/00—Control of flow
- G05D7/01—Control of flow without auxiliary power
- G05D7/0126—Control of flow without auxiliary power the sensing element being a piston or plunger associated with one or more springs
- G05D7/0133—Control of flow without auxiliary power the sensing element being a piston or plunger associated with one or more springs within the flow-path
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Safety Valves (AREA)
Abstract
A kind of bidirectional traffics control valve, mainly it is made up of the first fixed seat, the first spring, regulating valve, second spring and the second fixed seat, first fixed seat forms hollow cylindrical housings after being connected with the second fixed seat, the first spring, regulating valve and second spring are located in shell inner hole；It is provided with the first fixed seat inwall to the one of inner process and encloses first boss, first support is provided between the one end of the first fixed seat away from the second fixed seat and first boss, regulating valve is placed in the space formed after the first fixed seat is connected with the second fixed seat, by the way that the first spring, regulating valve and second spring are sequentially sleeved in the first fixed column, the end of the first fixed column is inserted into the second positioning hole of the second fixed column again, realize that the liquid for no matter entering housing or gas can play a part of controlling flow toward which direction flowing, regulating valve.
Description
Technical field
No matter liquid in pipeline or gas are that flowing can control flow forward or backwards the present invention relates to a kind of
Two-way valve, belong to the optimisation technique of flow control valve.
Background technology
Connection between water supply pipe, the connection between water pipe and tap, all realized by joint.To building
Supply water, typically there is a two ways, it is a kind of be using booster pump from bottom to top send water mode, one kind is to dispose water tank in roof,
The mode conveyed from top to bottom using water-head.Either any to send water mode, different floor hydraulic pressure also can be different, can lead
Cause different floor water yields different.Therefore, now with some there is the water pipe head of balanced-out water to design, it is intended to make different buildings
The water yield of layer tends to identical.
Particularly domestic consumer, because each leading purposes is different, the requirement to water yield is also different, such as the wash vegetables in kitchen
Washing one's face for tap and toilet and sprays first-class at tap, and due to the difference of purposes, the requirement to water yield is also different, such as washes
The water yield of face tap be maintained at 4 liters/min it is just much of that, and spray the water yield requirement of head more than 8 liters/min.
Regulation for gas flow, there is also it is same the problem of.Generally, the flow direction of liquid-transport pipe-line or gas pipeline is all
Unidirectional, there are some valves for being applied to the control flow of liquid-transport pipe-line or gas pipeline, but these valves are usually applicable only to
Control unidirectional flow.But in some special occasions, may there are the problem of reverse flow, the valve of existing control liquid measure
Unidirectionally controlled flow is typically only capable to, when the liquid in pipeline or gas need reverse flow, these valves cannot play control
The effect of liquid measure processed, the reverse flow of liquid or gas may be hindered on the contrary.
It is, thus, sought for a kind of, no matter liquid in pipeline or gas are that forward flow or reverse flow can rise
To the flow control valve of the effect of control flow.
The content of the invention
The purpose of the present invention is:A kind of liquid in pipeline is provided or gas be forward flow or reverse flow all
The flow control valve of flow can be played a part of controlling.
The technical scheme is that：A kind of bidirectional traffics control valve, mainly by the first fixed seat 1, the first spring 2, tune
Section valve 3, the fixed seat 5 of second spring 4 and second form, and the first fixed seat forms hollow cylinder after being connected with the second fixed seat
Housing, the first spring, regulating valve and second spring are located in shell inner hole；It is provided with the first fixed seat inwall to the one of inner process
First boss 11 is enclosed, first support 12 is provided between the one end of the first fixed seat away from the second fixed seat and first boss 11,
The first fixed column of cylinder 13 of the second fixed seat protrusion is provided with the center of first support 12, in the second fixed seat 5
Wall is provided with to the one of inner process and encloses second boss 51, between the one end of the second fixed seat away from the first fixed seat and second boss
Provided with second support 52, the second fixed column of cylinder 53 of the first fixed seat is provided with the center of second support, second is solid
End of the fixed column away from second support is provided with the second positioning hole 54 being recessed to second support direction；Described regulating valve 3 is provided with
The central through hole coordinated with the first fixed column, in the presence of external force, regulating valve 3 can move forward and backward along the first fixed column；
Described regulating valve is divided into towards the part of first support and towards second along its center section vertical with housing axis
The part of frame, part towards the part of first support and towards second support mirror image each other；Described regulating valve direction first
The part of support is cone, and the vertex of a cone is towards first support；During assembling, by the first spring housing in the first fixed column, then it will adjust
Section valve pocket is enclosed in the first fixed column in the first fixed column, then by second spring, is finally fixed the first fixed seat and second
Seat connection, makes end of first fixed column away from first support enter the second positioning hole 54.
When the pressure balance of regulating valve both sides, central point of the regulating valve between first boss and second boss.
Central through hole around regulating valve on end face of the regulating valve towards first support is provided for fixing the first spring
The first groove, be provided for fixing the second bullet around the central through hole of regulating valve on end face of the regulating valve towards second support
Second groove of spring.
The outer wall of the first fixed column 13 between first boss 11 and the center of first support 12 is provided with outstanding stop bit
Bead, moved for preventing regulating valve from crossing the central point of first boss to the direction of first support.
The external diameter of second fixed column is more than the aperture of the central through hole of regulating valve, and the length of the second fixed column is less than second
Frame is the distance between to second boss central point, for preventing regulating valve from crossing the central point of second boss to the side of second support
To movement.
In use, bidirectional traffics control valve plug is entered in pipeline to position, when the upstream end of housing has enough pressure, pressure
Power overcomes the first spring or the spring of pre-stressed compression first or second spring of second spring, makes direction of the regulating valve to the port of export
Mobile, regulating valve moves to second boss or first boss, gets over the gap between regulating valve and second boss or first boss
It is next smaller, when the position of regulating valve maximum outside diameter is moved to the place of second boss or first boss aperture minimum, by second
The position-limiting action of stop bit bead on the position-limiting action of fixed column or the first fixed column, regulating valve stop movement.
Beneficial effect：
1st, regulating valve is placed in the space formed after the first fixed seat is connected with the second fixed seat, by by the first bullet
Spring, regulating valve and second spring are sequentially sleeved in the first fixed column, then the end of the first fixed column is inserted into the second fixed column
In second positioning hole, realize that the liquid for no matter entering housing or gas can play control toward which direction flowing, regulating valve
The effect of flow.
Brief description of the drawings
Fig. 1 is the surface structure schematic diagram of the angle of the present invention；
Fig. 2 is the surface structure schematic diagram of another angle of the present invention；
Fig. 3 is the explosive view of the present invention；
Fig. 4 is Fig. 3 fragmentary sectional view；
Fig. 5 is the partial cutaway schematic that the present invention is in pressure balance；
Fig. 6 is that right atrial pressure that the present invention is subject in regulating valve is larger and the partial cutaway schematic that is moved to the left.
Embodiment
As shown in Fig. 1 to Fig. 6, a kind of bidirectional traffics control valve, mainly by the first fixed seat 1, the first spring 2, regulating valve
3rd, the fixed seat 5 of second spring 4 and second forms, and the first fixed seat forms hollow circular cylindrical shell after being connected with the second fixed seat
Body, the first spring, regulating valve and second spring are located in shell inner hole.
It is provided with the first fixed seat inwall to the one of inner process and encloses first boss 11, is fixed in the first fixed seat away from second
First support 12 is provided between one end of seat and first boss 11, being provided with the second fixed seat at the center of first support 12 dashes forward
The first fixed column of cylinder 13 gone out, it is provided with the inwall of the second fixed seat 5 to the one of inner process and encloses second boss 51, it is solid second
Second support 52 is provided between reservation one end and second boss away from the first fixed seat, is provided with the center of second support
The second fixed column of cylinder 53 of first fixed seat, end of second fixed column away from second support are provided with to second support direction
Second positioning hole 54 of depression；Described regulating valve 3 is provided with the central through hole coordinated with the first fixed column, in the effect of external force
Under, regulating valve 3 can move forward and backward along the first fixed column；Described regulating valve along its it is vertical with housing axis in it is anxious
Face is divided into the part towards the part of first support and towards second support, towards the part of first support and towards second support
Part mirror image each other；Described regulating valve is cone towards the part of first support, and the vertex of a cone is towards first support；Assembling
When, by the first spring housing in the first fixed column, then regulating valve is enclosed in the first fixed column, then second spring is enclosed on first
In fixed column, finally the first fixed seat is connected with the second fixed seat, enters end of first fixed column away from first support
Second positioning hole 54.
First fixed seat and the socket of the second fixed seat are connected through a screw thread, or are welded directly together.
When no hydraulic pressure or air pressure promote regulating valve, during regulating valve is between first boss and second boss
Heart point.When no hydraulic pressure or air pressure promote regulating valve, first boss and second boss towards regulating valve wall each other
Mirror image, i.e. both shapes are identical, and size is also identical.
Central through hole around regulating valve on end face of the regulating valve towards first support is provided for fixing the first spring
The first groove, be provided for fixing the second bullet around the central through hole of regulating valve on end face of the regulating valve towards second support
Second groove of spring.
To strengthen the enabling capabilities of first support, by the connecting portion of first support and first boss along the outer of first boss
Wall extends to the minimum place in first boss aperture.
To strengthen the enabling capabilities of second support, by the connecting portion of second support and second boss along the outer of second boss
Wall extends to the minimum place in second boss aperture.
Described first support and second support are in-line or triangle or cross.
The outer wall of the first fixed column 13 between first boss 11 and the center of first support 12 is provided with outstanding stop bit
Bead, moved for preventing regulating valve from crossing the central point of first boss to the direction of first support, i.e. regulating valve largest outside diameter
Place reach the minimum place in first boss aperture after, by the first inhibition for fixing column outer wall stop bit bead, regulating valve
It can not be moved again to the direction of first support, i.e., the pressure that ought be applied in regulating valve exceedes Pressure maximum value set in advance
When, regulating valve can not be promoted to be moved to the direction of first support again.
The described stop bit bead for being located at the first fixation column outer wall, can also be around the first fixed column root to second
The stop bit cylinder or a stop bit rib of frame direction extension, the end of described stop bit cylinder or stop bit rib are located at first support and the
Between the central point of one boss, likewise, after the place of regulating valve largest outside diameter reaches the minimum place in first boss aperture, just
It can not be moved again to the direction of first support by the inhibition of stop bit cylinder or stop bit rib.
The external diameter of second fixed column is more than the aperture of the central through hole of regulating valve, and the length of the second fixed column is less than second
Frame is the distance between to second boss central point, for preventing regulating valve from crossing the central point of second boss to the side of second support
To movement, i.e., behind the place of the place arrival second boss aperture minimum of regulating valve largest outside diameter, hindered by the second fixed column
Effect, regulating valve can not be moved to the direction of second support again, i.e., the pressure that ought be applied in regulating valve, which exceedes, to be preset
Pressure maximum value when, can not promote again direction from regulating valve to second support move.
In use, bidirectional traffics control valve plug is entered in pipeline to position, when the upstream end of housing has enough pressure, pressure
Power overcomes the first spring or the spring of pre-stressed compression first or second spring of second spring, makes direction of the regulating valve to the port of export
Mobile, regulating valve moves to second boss or first boss, gets over the gap between regulating valve and second boss or first boss
It is next smaller, when the position of regulating valve maximum outside diameter is moved to the place of second boss or first boss aperture minimum, by second
The position-limiting action of stop bit bead on the position-limiting action of fixed column or the first fixed column, regulating valve stop movement, second spring and
First spring also will not further be compressed.
To realize the positioning of bidirectional traffics control valve in the duct, set and the internal thread phase in inner bore of pipeline outside housing
The external screw thread of matching, housing is screwable into pipeline, or an outstanding circle bead is set in one end of housing, for inciting somebody to action
After housing is filled in pipeline, the bead on housing is played a part of positioning by the extruding of pipe ends；Or directly by housing
Both ends be connected respectively with the both ends of pipeline by screw thread or by be socketed be connected or be welded directly together.
Above-described embodiment is intended merely to the purposes of the interpretation present invention, and is not limitation of the present invention, this technology
The those of ordinary skill in field, in the essential scope of the present invention, make a variety of changes or substitute, should also belong to the guarantor of the present invention
Protect category.
Claims (3)
- A kind of 1. bidirectional traffics control valve, it is characterised in that：Mainly by the first fixed seat (1), the first spring (2), regulating valve (3), second spring (4) and the second fixed seat (5) composition, the first fixed seat form hollow cylinder after being connected with the second fixed seat Shape housing, the first spring, regulating valve and second spring are located in shell inner hole；It is provided with the first fixed seat inwall to inner process One circle first boss (11), is provided with first between the one end of the first fixed seat away from the second fixed seat and first boss (11) Frame (12), the fixed column of cylinder first (13) of the second fixed seat protrusion is provided with the center of first support (12), the Two fixed seats (5) inwall is provided with the circle second boss (51) to inner process, in one of the second fixed seat away from the first fixed seat Be provided with second support (52) between end and second boss, cylindrical the of the first fixed seat is provided with the center of second support Two fixed columns (53), end of second fixed column away from second support are provided with the second positioning hole being recessed to second support direction (54)；Described regulating valve (3) is provided with the central through hole coordinated with the first fixed column, in the presence of external force, regulating valve (3) energy It is enough to be moved forward and backward along the first fixed column；Described regulating valve is divided into towards the along its center section vertical with housing axis The part of one support and the part towards second support, part towards the part of first support and towards second support mirror each other Picture；Described regulating valve is cone towards the part of first support, and the vertex of a cone is towards first support；During assembling, by the first spring It is enclosed in the first fixed column, then regulating valve is enclosed in the first fixed column, then second spring is enclosed in the first fixed column, finally First fixed seat is connected with the second fixed seat, end of first fixed column away from first support is entered the second positioning hole (54)；The first fixed column (13) outer wall between first boss (11) and first support (12) center is provided with outstanding stop Position bead；The external diameter of second fixed column is more than the aperture of the central through hole of regulating valve, and the length of the second fixed column is less than second Frame is the distance between to second boss central point；In use, bidirectional traffics control valve plug is entered in pipeline to position, when entering for housing When entering end has enough pressure, pressure overcomes the first spring or the spring of pre-stressed compression first or second spring of second spring, Regulating valve is set to be moved to the direction of the port of export, regulating valve moves to second boss or first boss, makes regulating valve and second boss Or the gap between first boss is less and less, when the position of regulating valve maximum outside diameter is moved to second boss or first boss hole During the place of footpath minimum, by the position-limiting action of the stop bit bead in the position-limiting action of the second fixed column or the first fixed column, regulation Valve stops movement.
- 2. bidirectional traffics control valve according to claim 1, it is characterised in that：When the pressure balance of regulating valve both sides, Central point of the regulating valve between first boss and second boss.
- 3. bidirectional traffics control valve according to claim 1, it is characterised in that：In regulating valve towards the end face of first support The upper central through hole around regulating valve is provided for fixing the first groove of the first spring, in regulating valve towards the end of second support Central through hole on face around regulating valve is provided for fixing the second groove of second spring.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810116264.1A CN108386586A (en) | 2016-01-07 | 2016-01-07 | A kind of flow control valve |
| CN201610012721.3A CN105508676B (en) | 2016-01-07 | 2016-01-07 | A kind of bidirectional traffics control valve |
| CN201810116656.8A CN108374920B (en) | 2016-01-07 | 2016-01-07 | A kind of bidirectional traffics control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610012721.3A CN105508676B (en) | 2016-01-07 | 2016-01-07 | A kind of bidirectional traffics control valve |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810116656.8A Division CN108374920B (en) | 2016-01-07 | 2016-01-07 | A kind of bidirectional traffics control valve |
| CN201810116264.1A Division CN108386586A (en) | 2016-01-07 | 2016-01-07 | A kind of flow control valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105508676A CN105508676A (en) | 2016-04-20 |
| CN105508676B true CN105508676B (en) | 2018-03-27 |
Family
ID=55716872
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810116264.1A Pending CN108386586A (en) | 2016-01-07 | 2016-01-07 | A kind of flow control valve |
| CN201610012721.3A Active CN105508676B (en) | 2016-01-07 | 2016-01-07 | A kind of bidirectional traffics control valve |
| CN201810116656.8A Expired - Fee Related CN108374920B (en) | 2016-01-07 | 2016-01-07 | A kind of bidirectional traffics control valve |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810116264.1A Pending CN108386586A (en) | 2016-01-07 | 2016-01-07 | A kind of flow control valve |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810116656.8A Expired - Fee Related CN108374920B (en) | 2016-01-07 | 2016-01-07 | A kind of bidirectional traffics control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (3) | CN108386586A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108386586A (en) * | 2016-01-07 | 2018-08-10 | 余丽红 | A kind of flow control valve |
| CN107725853B (en) * | 2017-11-14 | 2023-12-05 | 吉林大学 | Pressure-based flow self-regulating control valve |
| CN113757425A (en) * | 2021-08-31 | 2021-12-07 | 西安热工研究院有限公司 | Wide-load self-adaptive variable flow area throttling and pressure stabilizing structure and method |
| CN114233902A (en) * | 2021-11-09 | 2022-03-25 | 中国长江电力股份有限公司 | Gauge front pipe fitting capable of being automatically closed in case of pressure loss |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH497900A (en) * | 1966-05-23 | 1970-10-31 | Rickenbach Hugo | Valve for protective structures |
| DE2303431C2 (en) * | 1973-01-24 | 1983-12-15 | Anton Piller Kg, 3360 Osterode | Quick-closing valve for ventilation lines in shelter structures |
| DE2547470A1 (en) * | 1975-10-23 | 1977-04-28 | Interatom | Safety valve closure upstream of burst duct - has spring-loaded closure plug actuated by change in flow dynamics |
| GB8708655D0 (en) * | 1987-04-10 | 1987-05-13 | Compair Power Tools Ltd | Safety valve |
| US5207243A (en) * | 1992-07-06 | 1993-05-04 | Sarro Claude A | Two-way piston check valve |
| CN2809373Y (en) * | 2004-12-07 | 2006-08-23 | 陈俊平 | Two-way stop valve |
| CN2883835Y (en) * | 2006-03-16 | 2007-03-28 | 鲍峰 | Liquid flow auto-balancing regulating valve |
| CN201173360Y (en) * | 2008-01-31 | 2008-12-31 | 赖建辅 | Bidirectional stop type fast joint improvement structure |
| CN202349316U (en) * | 2011-10-21 | 2012-07-25 | 宁波力利智能控制设备有限公司 | Anti-surging device for gas pressure regulator |
| CN102537449B (en) * | 2011-12-07 | 2013-08-28 | 三一重型装备有限公司 | Bidirectional self-adaptive damping valve |
| CN203516869U (en) * | 2013-07-23 | 2014-04-02 | 北汽福田汽车股份有限公司 | Two-way pressure valve and automobile cooling system comprising same |
| CN203453563U (en) * | 2013-09-09 | 2014-02-26 | 苏州萃智新技术开发有限公司 | Double-pipe balance valve |
| CN104653917B (en) * | 2013-11-25 | 2016-08-17 | 中山市雅西环保科技有限公司 | A kind of two-ways regulation water pipe head |
| CN103591344A (en) * | 2013-11-28 | 2014-02-19 | 天津市国威给排水设备制造有限公司 | Two-way controllable non-return valve |
| CN203770770U (en) * | 2014-01-13 | 2014-08-13 | 胡光荣 | Two-directional flow valve |
| CN104964077A (en) * | 2015-05-20 | 2015-10-07 | 天津斯维克阀业有限公司 | Bi-directional flow-limiting valve |
| CN204717186U (en) * | 2015-06-10 | 2015-10-21 | 长乐市丽智产品设计有限公司 | A kind of water supply pipe flow control valve |
| CN108386586A (en) * | 2016-01-07 | 2018-08-10 | 余丽红 | A kind of flow control valve |
-
2016
- 2016-01-07 CN CN201810116264.1A patent/CN108386586A/en active Pending
- 2016-01-07 CN CN201610012721.3A patent/CN105508676B/en active Active
- 2016-01-07 CN CN201810116656.8A patent/CN108374920B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN108374920B (en) | 2019-07-02 |
| CN108386586A (en) | 2018-08-10 |
| CN105508676A (en) | 2016-04-20 |
| CN108374920A (en) | 2018-08-07 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200924 Address after: Room 1102, building 19, Jianghai Jiayuan, Gangzha District, Nantong City, Jiangsu Province (b1108) Patentee after: Nantong NACO fluid equipment Co., Ltd Address before: 528437 No. 133, Pioneer Center, Kangle Road, Torch Development Zone, Guangdong, Zhongshan Patentee before: ZHONGSHAN YAXI ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. |
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| TR01 | Transfer of patent right |