CN210179029U - Wisdom governing valve - Google Patents
Wisdom governing valve Download PDFInfo
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- CN210179029U CN210179029U CN201920506593.7U CN201920506593U CN210179029U CN 210179029 U CN210179029 U CN 210179029U CN 201920506593 U CN201920506593 U CN 201920506593U CN 210179029 U CN210179029 U CN 210179029U
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- Prior art keywords
- valve
- pressure
- regulating
- extension pipe
- hydraulic actuator
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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
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0025—Electrical or magnetic means
- F16K37/0041—Electrical or magnetic means for measuring valve parameters
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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
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0025—Electrical or magnetic means
- F16K37/005—Electrical or magnetic means for measuring fluid parameters
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D16/00—Control of fluid pressure
- G05D16/20—Control of fluid pressure characterised by the use of electric means
- G05D16/2006—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means
- G05D16/2013—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means
- G05D16/202—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means actuated by an electric motor
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Electrically Driven Valve-Operating Means (AREA)
Abstract
The utility model discloses a smart regulating valve, which comprises a self-operated flow-regulating pressure-regulating valve body and a smart controller, wherein the self-operated flow-regulating pressure-regulating valve body consists of a valve front extension pipe, a valve rear extension pipe, a three-way ball valve, a valve front pressure gauge, a valve rear pressure gauge, a piston type flow-regulating pressure-regulating valve, a pilot valve, a filter valve and a hydraulic actuator; the intelligent controller consists of an ultrasonic motor driving unit, a pressure sensor, a position sensor and an MCU/IoT control module; the pilot valve is respectively connected with the hydraulic actuator, the front extension pipe and the rear extension pipe, and the hydraulic actuator is connected with the self-operated flow-regulating pressure-regulating valve body through the driving shaft. The utility model discloses a pipeline fluid pressure promotes behind the hydraulic actuator stabilizer valve or pressure before the valve, or through opening/closing of hydraulic actuator control flap, realizes remote control through wireless controller, does not need outside electric power or other energy, reduces the energy consumption by a wide margin to can realize IP68 level protection, improve the convenience of using greatly.
Description
Technical Field
The utility model belongs to the technical field of the air-vent valve of accent flow, specific saying so relates to a wisdom governing valve.
Background
In the era of the internet of things of everything, the application of the smart city and the smart pipe network technology can greatly reduce energy consumption, improve the reaction efficiency of the whole system and reduce resource waste. The intelligent regulating valve is the core execution equipment of the intelligent pipe network. The piston type flow regulating and pressure regulating valve is one kind of valve, and because it has many control functions and many advantages, the application of piston type flow regulating and pressure regulating valve in production is more and more extensive, but at present the prior art must rely on external power drive, makes practical application receive the restriction. The automatic control valves which are available on the market at present mainly comprise diaphragm valves and derivative products thereof; the flow resistance is large, the automatic control valve in the prior art exceeds the general requirements of municipal pipe networks, and meanwhile, under the condition of large pressure difference, the cavitation phenomenon behind the valve is obvious; at small flow rates, the regulation performance is not stable or even fails. Based on the above drawbacks, there is a need in the market for an intelligent regulating valve that superimposes the advantages of the two existing valves.
Disclosure of Invention
The utility model discloses an overcome the not enough of prior art existence, provide a wisdom governing valve that simple structure is reasonable, the performance is excellent.
The utility model discloses a realize through following technical scheme: a kind of intellectual control valve, including self-operated flow control pressure regulating valve body and intellectual controller, the self-operated flow control pressure regulating valve body is by the valve front extension pipe, valve after extension pipe, three-way ball valve, valve front pressure gauge, valve after pressure gauge, piston flow control pressure regulating valve, pilot valve, filter valve and hydraulic actuator make up; the intelligent controller consists of an ultrasonic motor driving unit, a pressure sensor, a position sensor and an MCU/IoT control module; the pressure guide pipe on the front extension pipe and the rear extension pipe of the valve is connected with the three-way ball valve, the four-way pipe on the piston type flow regulating and pressure regulating valve is respectively connected with the front pressure gauge, the rear pressure gauge, the guide valve and the three-way ball valve through the water guide pipe, the guide valve is respectively connected with the hydraulic actuator, the front extension pipe of the valve and the rear extension pipe of the valve, and the hydraulic actuator is connected with the self-operated flow regulating and pressure regulating valve body through the driving shaft; the ultrasonic motor driving unit of the intelligent controller is connected with the upper part of the pilot valve, the pressure setting of the pilot valve can be adjusted, the ultrasonic motor driving unit is also connected with the MCU/IoT control module through a cable, the pressure sensor and the position sensor are both connected with the MCU/IoT control module, and the pressure sensor is arranged in a mounting box of the MCU/IoT control module and used for reducing signal interference and pressure jitter; the pressure gauge before the valve is communicated with the extension pipe before the valve through a connecting pipe, a filter valve is connected on the connecting pipe between the pressure gauge before the valve and the extension pipe before the valve, the pressure gauge after the valve is communicated with the extension pipe after the valve through the connecting pipe, and the filter valve is connected on the connecting pipe between the pressure gauge after the valve and the extension pipe after the valve; the pressure sensor comprises a pre-valve pressure sensor and a post-valve pressure sensor, the pre-valve pressure sensor and the post-valve pressure sensor are both arranged in a box body of the intelligent controller, the pre-valve pressure sensor is connected with a pre-valve pressure gauge through a pressure guiding pipe, the post-valve pressure sensor is connected with a post-valve pressure gauge through a pressure guiding pipe, and the position sensor is connected with a valve shaft of the self-operated flow regulating and pressure regulating valve to sense the opening and closing position of the valve. The front extension pipe and the rear extension pipe are connected with the piston type flow regulating and pressure regulating valve through flanges, pressure guide pipes of the front extension pipe and the rear extension pipe are made of stainless steel, and the distance between the pressure guide pipes and the flanges of the piston type flow regulating and pressure regulating valves exceeds 1.5 times of the diameter of the valves.
The hydraulic actuator is used as a core driving component, and according to the difference of working condition pressure, the hydraulic actuator adopts a gear and rack eccentric driving type hydraulic actuator or a shifting fork type central driving type hydraulic actuator, and as required, the hydraulic actuator can be additionally provided with a tail section speed reduction adjusting device. The hydraulic actuator controls the reversing of the pilot valve through the pressure difference between the front part and the rear part of the valve, so that water in the pipeline enters different cavities of the hydraulic actuator, and the valve is driven to open or close. The concrete control process of the compressibility is as follows: the pressure behind the valve is higher than the set value → the water before the valve enters the left cavity → drives the valve to close; pressure behind the valve is lower than the set value → water enters the right chamber before the valve → drives the valve open.
The ultrasonic motor is characterized in that an adjusting spring and a valve core are arranged in the pilot valve, the adjusting spring is installed on the upper portion, the pilot valve comprises a valve rod, a transmission rod and an ultrasonic motor which are sequentially arranged from bottom to top, the valve rod is arranged in the middle of the valve core of the pilot valve, the adjusting spring is sleeved on the valve rod, the transmission rod is fixedly connected to the top of the valve rod, the ultrasonic motor is fixedly arranged on the top of the sensing rod, a transmission pin is arranged on the transmission rod and connected with the ultrasonic motor, an ultrasonic motor driving unit is connected with the ultrasonic motor on the upper portion of the pilot valve, the pilot valve can be replaced by an electromagnetic. The ultrasonic motor rotates according to the instruction of the intelligent controller, and the transmission rod is driven by the transmission pin to move up and down, so that the spring is lifted or compressed to achieve the planned set value.
The MCU/IoT control unit of the smart controller is battery powered and the smart controller is an IP 68-level fully-sealed design. The pressure gauge before the valve and the pressure gauge after the valve both adopt shock-proof pressure gauges.
The utility model provides a wisdom governing valve still is provided with filter valve and sand removing device, in extension pipe and the valve back extension pipe before the filter valve extends to the valve, at the fixed sand removing device that is provided with of end of filter valve, the sand removing device is a cylindric container of connection on the filter valve, the filter screen of sand removing device is double-deck filter screen, outer filter screen's mesh number is 40 meshes, be used for filtering large granule debris, the mesh number of inlayer filter screen is 80 meshes, the sand removing device is installed 10 in the same direction as rivers direction level downwardly rotating, the usable turbulent flow of this kind of mounting means erodees the filter screen, thereby reach the effect of clean filter screen. The filter valve and the desanding device can realize the function of removing large particles, and can prevent the blockage and the energy efficiency reduction of the whole system caused by pollutants.
The utility model provides a pressure sensor all installs in the wisdom controller behind pressure sensor and the valve to pipeline links to each other before pressing the pipe and valve rear pipeline through the drainage tube, and position sensor links to each other with the valve shaft of the formula of relying on oneself air-vent valve of shunting, with the on-off position of perception valve.
The utility model has the advantages that: the utility model discloses a pipeline fluid pressure promotes behind the hydraulic actuator stabilizer valve or pressure before the valve, or through opening/closing of hydraulic actuator control flap, realizes remote control through wireless controller, does not need outside electric power or other energy, reduces the energy consumption by a wide margin to can realize IP68 level protection, improve the convenience of using greatly. The utility model discloses the direction of motion and the fluid direction of piston are unanimous among the wisdom governing valve, and the runner is simple to make the flow resistance reduce, more be fit for the needs of city pipe network. The outlet component adjusts the water flow opposite-flushing energy dissipation mode, the cavitation erosion resistance is obviously improved, and the cavitation erosion prevention effect under the high pressure difference is obvious. The utility model provides a wisdom governing valve is equipped with the tee bend ball valve, and tee bend ball valve and valve front portion, valve rear portion and pilot valve are connected can realize promptly closing the valve.
The intelligent controller under the support of the USM technology, the IoT technology and the MCU technology enables the self-operated flow regulating and pressure regulating valve to be perfectly combined with the intelligent pipe network system, and the combination of remote setting, remote control and local programmable automatic control is realized. Compared with the 2-generation communication technology in the prior art, the IoT technology has the advantages that the energy consumption is greatly reduced, and meanwhile, the signal strength is greatly improved, so that the IoT technology can continuously work for more than 2 years by using a battery for power supply. The USM ultrasonic motor is a novel motor, has the advantages of high response speed, large low-speed torque and the like compared with a traditional electromagnetic motor, has the advantages of self-locking function and low current, and is particularly suitable for setting adjustment and application of a valve.
Drawings
Fig. 1 is a schematic front view of the intelligent regulating valve of the present invention;
FIG. 2 is a schematic side view of the intelligent regulating valve of the present invention;
FIG. 3 is a schematic diagram of the operation of the intelligent controller in the intelligent regulating valve of the present invention;
in the figure: 1-piston type flow regulating and pressure regulating valve; 2-a pilot valve; 3-a three-way ball valve; 4-a pre-valve pressure gauge; 5-extension pipe before valve; 6-a hydraulic actuator; 7-an ultrasonic motor drive unit; 8-an intelligent controller; 9-a post-valve pressure gauge; 10-extending the pipe behind the valve; 11-a filter valve.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 to 2, the utility model discloses a smart regulating valve, which comprises a self-operated flow-regulating pressure-regulating valve body and a smart controller 8, wherein the self-operated flow-regulating pressure-regulating valve body consists of a valve front extension pipe 5, a valve rear extension pipe 10, a three-way ball valve 3, a valve front pressure gauge 4, a valve rear pressure gauge 9, a piston type flow-regulating pressure-regulating valve 1, a pilot valve 2, a filter valve 11 and a hydraulic actuator 6; the intelligent controller 8 is composed of an ultrasonic motor driving unit 7, a pressure sensor, a position sensor and an MCU/IoT control module; the pressure guide pipes on the front extension pipe 5 and the rear extension pipe 10 are connected with the three-way ball valve 3, the four-way pipe on the piston type flow regulating and pressure regulating valve 1 is respectively connected with the front pressure gauge 4, the rear pressure gauge 9, the pilot valve 2 and the three-way ball valve 3 through the water guide pipe, the pilot valve 2 is respectively connected with the hydraulic actuator 6, the front extension pipe 5 and the rear extension pipe 10, and the hydraulic actuator 6 is connected with the self-operated flow regulating and pressure regulating valve body through the driving shaft; the ultrasonic motor driving unit 7 of the intelligent controller 8 is connected with the upper part of the pilot valve 2, the pressure setting of the pilot valve 2 can be adjusted, the ultrasonic motor driving unit 7 is also connected with the MCU/IoT control module through a cable, the pressure sensor and the position sensor are both connected with the MCU/IoT control module, and the pressure sensor is arranged in a mounting box of the MCU/IoT control module and used for reducing signal interference and pressure jitter; the pre-valve pressure gauge 4 is communicated with the pre-valve extension pipe 5 through a connecting pipe, a filter valve 11 is connected to the connecting pipe between the pre-valve pressure gauge 4 and the pre-valve extension pipe 5, the post-valve pressure gauge 9 is communicated with the post-valve extension pipe 10 through a connecting pipe, and the filter valve 11 is connected to the connecting pipe between the post-valve pressure gauge 9 and the post-valve extension pipe 10; the pressure sensor comprises a pressure sensor before the valve and a pressure sensor after the valve, the pressure sensor before the valve and the pressure sensor after the valve are both arranged in the box body of the intelligent controller 8, the pressure sensor before the valve is connected with the pressure meter 4 before the valve through a pressure guiding pipe, the pressure sensor after the valve is connected with the pressure meter 9 after the valve through the pressure guiding pipe, and the position sensor is connected with a valve shaft of the self-operated flow regulating and pressure regulating valve so as to sense the opening and closing position of the valve. The front extension pipe 5 and the rear extension pipe 10 are both connected with the piston type flow regulating and pressure regulating valve 1 through flanges, the pressure guide pipes of the front extension pipe 5 and the rear extension pipe 10 are made of stainless steel materials, and the distance between the pressure guide pipes and the flanges of the piston type flow regulating and pressure regulating valve 1 exceeds 1.5 times of the diameter of the valve.
The hydraulic actuator 6 is taken as a core driving part, and according to the difference of working condition pressure, the hydraulic actuator 6 adopts a gear and rack eccentric driving type hydraulic actuator 6 or a shifting fork type central driving type hydraulic actuator 6, and as required, the hydraulic actuator 6 can be additionally provided with a tail section speed reduction adjusting device. The hydraulic actuator 6 controls the pilot valve 2 to change direction through the pressure difference between the front part and the rear part of the valve, so that water in the pipeline enters different cavities of the hydraulic actuator 6, and the valve is driven to open or close. The concrete control process of the compressibility is as follows: the pressure behind the valve is higher than the set value → the water before the valve enters the left cavity → drives the valve to close; pressure behind the valve is lower than the set value → water enters the right chamber before the valve → drives the valve open.
The adjusting spring and the valve core are arranged inside the pilot valve 2, the adjusting spring is arranged on the upper portion, the pilot valve 2 comprises a valve rod, a transmission rod and an ultrasonic motor which are sequentially arranged from bottom to top, the valve rod is arranged in the middle of the valve core of the pilot valve 2, the adjusting spring is sleeved on the valve rod, the transmission rod is fixedly connected to the top of the valve rod, the ultrasonic motor is fixedly arranged on the top of the sensing rod, a transmission pin is arranged on the transmission rod and connected with the ultrasonic motor, the ultrasonic motor driving unit 7 is connected with the ultrasonic motor on the upper portion of the pilot valve 2, the pilot valve 2 can be replaced by an electromagnetic valve, and the function of the. The ultrasonic motor rotates according to the instruction of the intelligent controller 8, and drives the transmission rod to move up and down through the transmission pin, so that the spring is lifted or compressed, and the planned set value is achieved. The MCU/IoT control unit of the smart controller 8 is battery powered and the smart controller 8 is an IP 68-level fully sealed design. The pre-valve pressure gauge 4 and the post-valve pressure gauge 9 both adopt shock-proof pressure gauges.
The utility model provides a wisdom governing valve still is provided with filter valve 11 and sand removing device, filter valve 11 extends to before the valve in extension pipe 5 and the valve extension pipe 10, the fixed sand removing device that is provided with in filter valve 11's end, the sand removing device is a cylindric container of connection on filter valve 11, the filter screen of sand removing device is double-deck filter screen, the mesh number of outer filter screen is 40 meshes, be used for filtering large granule debris, the mesh number of inner filter screen is 80 meshes, the sand removing device is in the same direction as 10 installations of rivers direction level downwardly rotation, the usable turbulent flow of this kind of mounting means erodees the filter screen, thereby reach the effect of clean filter screen. The filter valve 11 and the desanding device can realize the function of removing large particles, and can prevent the blockage and the energy efficiency reduction of the whole system caused by pollutants. The utility model provides a pressure sensor before the valve and pressure sensor behind the valve all install in wisdom controller 8 to pipeline links to each other before the pipe and valve with the valve through the pressure-inducing pipe, and position sensor links to each other with the valve shaft of the formula of relying on oneself air-vent valve of shunting, with the on-off position of perception valve.
As shown in fig. 3, the utility model discloses wisdom governing valve in the theory of operation of intelligent controller 8 does: the pressure transmitter outputs signals, and the output signals are 0.5 VDC-4.5 VDC; the MCU converts the output signal of the pressure transmitter into a digital value, compares the digital value with the value in the pressure plan, and outputs a signal to the ultrasonic driving device; the central control room specifies a pressure plan, and transmits the pressure plan to a memory of the MCU through an IoT mode, and the pressure plan can be updated regularly; the ultrasonic driving device performs forward rotation or reverse rotation according to the MCU signal.
It should be finally noted that the above only serves to illustrate the technical solution of the present invention, and not to limit the scope of the present invention, and that simple modifications or equivalent replacements performed by those skilled in the art to the technical solution of the present invention do not depart from the spirit and scope of the technical solution of the present invention.
Claims (5)
1. The utility model provides an wisdom governing valve which characterized in that: the intelligent regulating valve comprises a self-operated flow-regulating pressure-regulating valve body and an intelligent controller, wherein the self-operated flow-regulating pressure-regulating valve body consists of a valve front extension pipe, a valve rear extension pipe, a three-way ball valve, a valve front pressure gauge, a valve rear pressure gauge, a piston type flow-regulating pressure-regulating valve, a pilot valve, a filter valve and a hydraulic actuator; the intelligent controller consists of an ultrasonic motor driving unit, a pressure sensor, a position sensor and an MCU/IoT control module; the pressure guide pipe on the front extension pipe and the rear extension pipe is connected with the three-way ball valve, the four-way pipe on the piston type flow regulating and pressure regulating valve is respectively connected with a front pressure gauge, a rear pressure gauge, a guide valve and a three-way ball valve through the water guide pipe, the guide valve is respectively connected with the hydraulic actuator, the front extension pipe and the rear extension pipe, and the hydraulic actuator is connected with the self-operated flow regulating and pressure regulating valve body through a driving shaft; the ultrasonic motor driving unit of the intelligent controller is connected with the upper part of the pilot valve, the ultrasonic motor driving unit is further connected with the MCU/IoT control module through a cable, the pressure sensor and the position sensor are both connected with the MCU/IoT control module, the pressure sensor is arranged in a mounting box of the MCU/IoT control module, the before-valve pressure gauge is communicated with the before-valve extension pipe through a connecting pipe, the filter valve is connected on the connecting pipe between the before-valve pressure gauge and the before-valve extension pipe, the after-valve pressure gauge is communicated with the after-valve extension pipe through a connecting pipe, and the filter valve is connected on the connecting pipe between the after-valve pressure gauge and the after-valve extension pipe; the pressure sensor comprises a pre-valve pressure sensor and a post-valve pressure sensor, the pre-valve pressure sensor and the post-valve pressure sensor are both arranged in a box body of the intelligent controller, the pre-valve pressure sensor is connected with the pre-valve pressure gauge through a pressure guiding pipe, the post-valve pressure sensor is connected with the post-valve pressure gauge through a pressure guiding pipe, and the position sensor is connected with a valve shaft of the self-operated flow regulating and pressure regulating valve; the front extension pipe and the rear extension pipe are connected with the piston type flow regulating and pressure regulating valve through flanges, pressure guide pipes of the front extension pipe and the rear extension pipe are made of stainless steel, and the distance between the pressure guide pipes and the flanges of the piston type flow regulating and pressure regulating valves exceeds 1.5 times of the diameter of the valves.
2. The intelligent regulating valve as claimed in claim 1, wherein: the hydraulic actuator adopts a gear and rack eccentric driving type hydraulic actuator or a shifting fork type central driving type hydraulic actuator, and a tail section speed reduction adjusting device can be additionally arranged on the hydraulic actuator.
3. The intelligent regulating valve as claimed in claim 1, wherein: and an adjusting spring and a valve core are arranged in the pilot valve, and the adjusting spring is arranged at the upper part.
4. The intelligent regulating valve as claimed in claim 1, wherein: the MCU/IoT control unit of the intelligent controller is powered by a battery, and the intelligent controller is designed in an IP68 fully-sealed mode.
5. The intelligent regulating valve as claimed in claim 1, wherein: and the pressure gauge before the valve and the pressure gauge after the valve both adopt shock-proof pressure gauges.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2018206704774 | 2018-05-07 | ||
| CN201820670477 | 2018-05-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210179029U true CN210179029U (en) | 2020-03-24 |
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ID=68276645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920506593.7U Active CN210179029U (en) | 2018-05-07 | 2019-04-15 | Wisdom governing valve |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN210179029U (en) |
| DE (1) | DE102019111765A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109826993A (en) * | 2018-05-07 | 2019-05-31 | 德阀机械（上海）有限公司 | A kind of wisdom regulating valve |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112594433A (en) * | 2021-03-03 | 2021-04-02 | 西安安森智能仪器股份有限公司 | Flow metering regulating valve |
| CN113280136A (en) * | 2021-06-07 | 2021-08-20 | 杭州春江阀门有限公司 | Intelligent control valve with data remote transmission function |
| CN114396494A (en) * | 2022-01-23 | 2022-04-26 | 芜湖市金贸流体科技股份有限公司 | Piston type electric flow-regulating pressure-regulating valve and working method thereof |
-
2019
- 2019-04-15 CN CN201920506593.7U patent/CN210179029U/en active Active
- 2019-05-07 DE DE102019111765.8A patent/DE102019111765A1/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109826993A (en) * | 2018-05-07 | 2019-05-31 | 德阀机械（上海）有限公司 | A kind of wisdom regulating valve |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102019111765A1 (en) | 2019-11-07 |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220930 Address after: 213000 Room 201, Building 1, No. 91, Houzhou Town East Road, Bieqiao Town, Liyang City, Changzhou City, Jiangsu Province Patentee after: De Valve Machinery (Jiangsu) Co.,Ltd. Address before: Room A-88, Building No. 3539, Dongfang Road, Pudong New Area, Shanghai, 200120 Patentee before: TVD (SHANGHAI) Co.,Ltd. |
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| TR01 | Transfer of patent right |