CN111720557B - Novel stop valve - Google Patents
Novel stop valve Download PDFInfo
- Publication number
- CN111720557B CN111720557B CN202010564217.0A CN202010564217A CN111720557B CN 111720557 B CN111720557 B CN 111720557B CN 202010564217 A CN202010564217 A CN 202010564217A CN 111720557 B CN111720557 B CN 111720557B
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- Prior art keywords
- valve
- rod
- cavity
- plate
- frame plate
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- 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
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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
- 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
- F16K1/02—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 with screw-spindle
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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
- 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
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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
- F16K31/44—Mechanical actuating means
- F16K31/53—Mechanical actuating means with toothed gearing
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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
- F16K43/00—Auxiliary closure means in valves, which in case of repair, e.g. rewashering, of the valve, can take over the function of the normal closure means; Devices for temporary replacement of parts of valves for the same purpose
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding Valves (AREA)
Abstract
The invention discloses a novel stop valve, which comprises a valve body, wherein an upper valve cavity and a lower valve cavity are arranged in the valve body, a valve plate is arranged between the upper valve cavity and the lower valve cavity in the valve body, a valve hole for communicating the upper valve cavity and the lower valve cavity is formed in the valve plate, and an outlet pipe and an inlet pipe are arranged on the side face of the valve body; the valve body is fixedly provided with a valve cover at the opening of the upper valve cavity, a valve rod with the lower end extending into the upper valve cavity is arranged in the valve cover, a frame plate is connected in the upper valve cavity in a sliding manner, and the lower end of the valve rod is connected with the frame plate; a first rotating shaft is arranged in the frame plate, a square valve block is fixedly arranged on the first rotating shaft, and sealing gaskets are arranged on the side surfaces around the square valve block; the valve rod is rotationally connected with a rotating rod of which the lower end extends into the frame plate, and a transmission assembly connected with the square valve block and the rotating rod is arranged in the frame plate; the novel stop valve is simple in structure and can be used for replacing the sealing gasket of the valve clack on line without stopping.
Description
Technical Field
The invention belongs to the technical field of pipeline valves, and particularly relates to a novel stop valve.
Background
The stop valve, also called a stop valve, is one of the most widely used valves, and is popular because the friction between sealing gaskets in the opening and closing process is small, the stop valve is durable, the opening height is small, the stop valve is easy to manufacture and convenient to maintain, and the stop valve is not only suitable for medium and low pressure, but also suitable for the characteristic of high pressure. The stop valve relies on valve rod pressure, makes valve clack and disk seat closely laminate, prevents the medium flow, reaches sealed effect. However, most stop valves in the market at present have the defect of poor sealing performance and leakage after being closed between a valve seat and a valve clack, so that great inconvenience is caused to use, loss is caused, and working efficiency is affected. When the valve clack is damaged to cause leakage in the use process of the conventional stop valve, the whole pipeline or equipment is required to be stopped, the stop valve is detached for maintenance or replacement, the production efficiency is affected, and moreover, equipment is not allowed to stop under a plurality of working conditions, so that great economic loss can be caused once the stop is carried out.
Disclosure of Invention
The invention aims to provide a novel stop valve which is simple in structure and can be used for replacing a sealing gasket of a valve block on line without stopping.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the novel stop valve comprises a valve body, wherein an upper valve cavity and a lower valve cavity are arranged in the valve body, a valve plate is arranged between the upper valve cavity and the lower valve cavity in the valve body, a valve hole for communicating the upper valve cavity with the lower valve cavity is formed in the valve plate, and an outlet pipe communicated with the upper valve cavity and an inlet pipe communicated with the lower valve cavity are arranged on the side surface of the valve body; the valve body is fixedly provided with a valve cover at the opening of the upper valve cavity, a valve rod with the lower end extending into the upper valve cavity is arranged in the valve cover, a frame plate is connected in the upper valve cavity in a sliding manner along the direction perpendicular to the valve plate, and the lower end of the valve rod is connected with the frame plate and used for driving the frame plate to slide along the direction perpendicular to the valve plate; a first rotating shaft is arranged above the valve hole in the frame plate, a square valve block positioned above the valve hole is fixedly arranged on the first rotating shaft, and sealing gaskets are arranged on the side surfaces around the square valve block; the rotary rod that the lower extreme stretched into the frame plate is connected with in the valve rod rotation, be equipped with in the frame plate with square valve piece and rotary rod connection's drive assembly, when the rotary rod rotated, drive the sealed pad on square valve piece side all around through drive assembly and rotate to the position parallel with the valve plate.
Further, the transmission assembly comprises a second rotating shaft which is rotatably connected in the frame plate and is positioned above the square valve block, and the second rotating shaft is parallel to the first rotating shaft; a first bevel gear is fixedly arranged at the lower end of the rotary rod, and a second bevel gear meshed with the first bevel gear is fixedly arranged on the second rotary shaft; both ends of the square valve block are provided with grooved wheels which are coaxially arranged with the first rotating shaft; the positions, close to the two ends, of the second rotating shaft are provided with driving plates connected with the grooved wheels.
Further, a poking pin is connected to the driving plate, a convex locking arc is arranged on the peripheral side wall of the driving plate, four concave arc grooves matched with the convex locking arc are uniformly distributed on the peripheral side wall of the grooved wheel along the circumferential direction, and radial grooves matched with the poking pin and radially arranged along the grooved wheel are arranged between two adjacent concave arc grooves; the periphery lateral wall of driver plate is equipped with the breach, the plectrum just is to the breach and set up on the perpendicular bisector between the breach both ends point.
Further, two sliding grooves are symmetrically formed in the inner side wall of the upper valve cavity along the direction perpendicular to the valve plate, and two sides of the frame plate are respectively located in the two sliding grooves; the lower extreme of valve rod is equipped with T font grooving, the upper end of frame plate is equipped with the T font lug that is located T font grooving.
Further, the valve cover is provided with a sealing groove at the outer side of the valve rod, a sealing ring sleeved on the valve rod is arranged in the sealing groove, and a plug in threaded connection with the valve rod is fixedly arranged at the opening of the sealing groove.
Further, the upper end of the valve rod is provided with a rotary groove, a shoulder located in the rotary groove is arranged on the side face of the rotary rod, a gland sleeved on the rotary rod is fixedly arranged at the opening of the upper end of the rotary groove, and the gland is used for preventing the shoulder from being separated from the rotary groove.
Further, the upper end of the valve rod is fixedly provided with a first handle rod, and the upper end of the rotating rod is fixedly provided with a second handle rod.
Advantageous effects
Compared with the prior art, the technical scheme of the invention has the following advantages:
according to the invention, the four sealing gaskets are arranged on the square valve block, when the sealing gaskets at the working positions are damaged, the square valve block is driven to rotate by controlling the driving plate to rotate, so that a new sealing gasket can be at the working positions, and therefore, the sealing gaskets of the square valve block can be replaced on line without stopping the machine, the continuous working of a pipeline or equipment is ensured, the running efficiency of a system is improved, and the economic loss caused by stopping, maintaining and replacing the valve clack is avoided.
Drawings
FIG. 1 is a cross-sectional view of the present invention with the valve block in the closed position;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a cross-sectional view of the valve block of the present invention when the valve block is open and the gasket is being replaced;
FIG. 4 is a cross-sectional view B-B of FIG. 3;
FIG. 5 is a schematic view of the three-dimensional structure of the valve block and sheave of the present invention;
fig. 6 is a schematic view of a three-dimensional structure of a dial in the present invention.
Detailed Description
Referring to fig. 1-6, a novel stop valve comprises a valve body 1, wherein an upper valve cavity 1a and a lower valve cavity 1b are arranged in the valve body 1, a valve plate 1c is arranged between the upper valve cavity 1a and the lower valve cavity 1b in the valve body 1, a valve hole 1d for communicating the upper valve cavity 1a with the lower valve cavity 1b is arranged on the valve plate 1c, and an outlet pipe 1f communicated with the upper valve cavity 1a and an inlet pipe 1e communicated with the lower valve cavity 1b are arranged on the side surface of the valve body 1; the valve body 1 is fixedly provided with a valve cover 3 at the opening of an upper valve cavity 1a, a valve rod 5 with the lower end extending into the upper valve cavity 1a is arranged in the valve cover 3, a frame plate 7 is connected in the upper valve cavity 1a in a sliding manner along the direction perpendicular to the valve plate 1c, and the lower end of the valve rod 5 is connected with the frame plate 7 and used for driving the frame plate 7 to slide along the direction perpendicular to the valve plate 1 c; a first rotating shaft 8b is arranged above the valve hole 1d in the frame plate 7, a square valve block 2 positioned above the valve hole 1d is fixedly arranged on the first rotating shaft 8b, and sealing gaskets 2a are arranged on the side surfaces of the periphery of the square valve block 2; the rotary rod 6 with the lower end extending into the frame plate 7 is rotationally connected to the valve rod 5, a transmission assembly connected with the square valve block 2 and the rotary rod 6 is arranged in the frame plate 7, and when the rotary rod 6 rotates, the transmission assembly drives the sealing gasket 2a on the peripheral side surface of the square valve block 2 to rotate to a position parallel to the valve plate 1 c.
The transmission assembly comprises a second rotating shaft 8a, the second rotating shaft 8a is rotatably connected in the frame plate 7 and is positioned above the square valve block 2, and the second rotating shaft 8a and the first rotating shaft 8b are mutually parallel; a first bevel gear 9 is fixedly arranged at the lower end of the rotary rod 6, and a second bevel gear 10 meshed with the first bevel gear 9 is fixedly arranged on the second rotary shaft 8 a; both ends of the square valve block 2 are provided with grooved wheels 20, and the grooved wheels 20 and the first rotating shaft 8b are coaxially arranged; the second rotating shaft 8a is provided with a driving plate 8 connected with the grooved pulley 20 at the positions close to the two ends.
The dial plate 8 is connected with a dial pin 81, a convex locking arc 82 is arranged on the peripheral side wall of the dial plate 8, four concave arc grooves 202 matched with the convex locking arc 82 are uniformly distributed on the peripheral side wall of the sheave 20 along the circumferential direction, and a radial groove 201 matched with the dial pin 81 and radially arranged along the sheave 20 is arranged between two adjacent concave arc grooves 202; the outer peripheral side wall of the driving plate 8 is provided with a notch 83, and the driving pin 81 is opposite to the notch 83 and is arranged on a midchord line between two end points of the notch 83.
The inner side wall of the upper valve cavity 1a is symmetrically provided with two sliding grooves 101 along the direction perpendicular to the valve plate 1c, and two sides of the frame plate 7 are respectively positioned in the two sliding grooves 101; the lower end of the valve rod 5 is provided with a T-shaped cutting groove 52, and the upper end of the frame plate 7 is provided with a T-shaped protruding block 71 positioned in the T-shaped cutting groove 52.
The valve cover 3 is provided with a sealing groove 31 at the outer side of the valve rod 5, a sealing ring 32 sleeved on the valve rod 5 is arranged in the sealing groove 31, and a plug 4 in threaded connection with the valve rod 5 is fixedly arranged at the opening of the sealing groove 31. The upper end of the valve rod 5 is provided with a rotary groove 51, the side surface of the rotary rod 6 is provided with a shoulder 61 positioned in the rotary groove 51, the opening of the upper end of the rotary groove 51 is fixedly provided with a gland 63 sleeved on the rotary rod 6, and the gland 63 is used for preventing the shoulder 61 from being separated from the rotary groove 51. The upper end of the valve rod 5 is fixedly provided with a first handle rod 11, and the upper end of the rotating rod 6 is fixedly provided with a second handle rod 62.
When the valve rod is used, the valve rod 5 is driven to rotate by the first handle rod 11, the valve rod 5 moves along the direction vertical to the valve plate 1c under the action of the plug 4 when rotating, the frame plate 7 is driven to slide up and down in the two sliding grooves 101 when the valve rod 5 moves, the sealing gasket 2a on the square valve block 2 is driven to leave the upper end of the valve hole 1d to open the valve hole 1d when the frame plate 7 slides upwards, and the inlet pipe 1e is communicated with the outlet pipe 1 f; when the frame plate 7 slides downwards, the sealing gasket 2a on the square valve block 2 is driven to press the upper end of the valve hole 1d to close the valve hole 1d, and the inlet pipe 1e is disconnected from the outlet pipe 1 f.
When the sealing gasket 2a on the square valve block 2 needs to be replaced, the second handle rod 62 drives the rotary rod 6 to rotate, the rotary rod 6 drives the second rotary shaft 8a to rotate through the engagement of the first bevel gear 9 and the second bevel gear 10, and when the second rotary shaft 8a rotates, the square valve block 2 is driven to rotate by 90 degrees through the cooperation of the poking pin 81 on the driving plate 8 and the radial groove 201 and the cooperation of the convex locking arc 82 and the concave arc groove 202, so that the new sealing gasket 2a is positioned in a position parallel to the valve plate 1 c. Therefore, the invention can replace the sealing gasket 2a of the square valve block 2 on line without stopping, ensure the continuous operation of pipelines or equipment, improve the operation efficiency of the system and avoid the economic loss caused by stopping maintenance and valve clack replacement.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the scope of the invention.
Claims (4)
1. The novel stop valve comprises a valve body, wherein an upper valve cavity and a lower valve cavity are arranged in the valve body, a valve plate is arranged between the upper valve cavity and the lower valve cavity in the valve body, a valve hole for communicating the upper valve cavity with the lower valve cavity is formed in the valve plate, and an outlet pipe communicated with the upper valve cavity and an inlet pipe communicated with the lower valve cavity are arranged on the side surface of the valve body; the valve body is fixedly provided with a valve cover at the opening of the upper valve cavity, and a valve rod with the lower end extending into the upper valve cavity is arranged in the valve cover; a first rotating shaft is arranged above the valve hole in the frame plate, a square valve block positioned above the valve hole is fixedly arranged on the first rotating shaft, and sealing gaskets are arranged on the side surfaces around the square valve block; the valve rod is rotationally connected with a rotating rod, the lower end of the rotating rod extends into the frame plate, a transmission assembly connected with the square valve block and the rotating rod is arranged in the frame plate, and when the rotating rod rotates, the sealing gasket on the side surface around the square valve block is driven to rotate to a position parallel to the valve plate by the transmission assembly;
the transmission assembly comprises a second rotating shaft which is rotatably connected in the frame plate and is positioned above the square valve block, and the second rotating shaft is parallel to the first rotating shaft; a first bevel gear is fixedly arranged at the lower end of the rotary rod, and a second bevel gear meshed with the first bevel gear is fixedly arranged on the second rotary shaft; both ends of the square valve block are provided with grooved wheels which are coaxially arranged with the first rotating shaft; the positions, close to the two ends, of the second rotating shaft are provided with driving plates connected with the grooved wheels;
the driving plate is connected with a driving pin, a convex locking arc is arranged on the peripheral side wall of the driving plate, four concave arc grooves matched with the convex locking arc are uniformly distributed on the peripheral side wall of the grooved wheel along the circumferential direction, and radial grooves matched with the driving pin and radially arranged along the grooved wheel are arranged between two adjacent concave arc grooves; a notch is formed in the peripheral side wall of the driving plate, and the driving pin is opposite to the notch and is arranged on a midchord line between two end points of the notch;
the inner side wall of the upper valve cavity is symmetrically provided with two sliding grooves along the direction perpendicular to the valve plate, and two sides of the frame plate are respectively positioned in the two sliding grooves; the lower extreme of valve rod is equipped with T font grooving, the upper end of frame plate is equipped with the T font lug that is located T font grooving.
2. The novel stop valve according to claim 1, wherein the valve cover is provided with a sealing groove at the outer side of the valve rod, a sealing ring sleeved on the valve rod is arranged in the sealing groove, and a plug in threaded connection with the valve rod is fixedly arranged at the opening of the sealing groove.
3. The novel stop valve according to claim 1, wherein the upper end of the valve rod is provided with a rotary groove, a shoulder located in the rotary groove is arranged on the side surface of the rotary rod, a gland sleeved on the rotary rod is fixedly arranged at the opening of the upper end of the rotary groove, and the gland is used for preventing the shoulder from being separated from the rotary groove.
4. The novel shut-off valve of claim 1, wherein a first handle is fixedly secured to an upper end of the valve stem and a second handle is fixedly secured to an upper end of the rotary stem.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010564217.0A CN111720557B (en) | 2020-06-19 | 2020-06-19 | Novel stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010564217.0A CN111720557B (en) | 2020-06-19 | 2020-06-19 | Novel stop valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111720557A CN111720557A (en) | 2020-09-29 |
| CN111720557B true CN111720557B (en) | 2023-09-22 |
Family
ID=72567687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010564217.0A Active CN111720557B (en) | 2020-06-19 | 2020-06-19 | Novel stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111720557B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112212021A (en) * | 2020-10-14 | 2021-01-12 | 任林赟 | Gate valve |
| CN115492941A (en) * | 2022-09-29 | 2022-12-20 | 沈阳耐蚀合金泵股份有限公司 | Longitudinal rotary valve clack shielding valve capable of being updated on line without disassembly |
| CN116164158B (en) * | 2023-04-26 | 2023-07-04 | 石家庄菲斯特自控设备有限公司 | Transmission device for valve |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3096966A (en) * | 1959-07-23 | 1963-07-09 | Hills Mccanna Co | Sealed ball valve |
| CN103866518A (en) * | 2012-12-10 | 2014-06-18 | 黄淑琴 | Hair beating machine |
| CN204900874U (en) * | 2015-08-14 | 2015-12-23 | 南通市电站阀门有限公司 | Improved generation is long continuation of journey case structure of double containment for valve |
| CN105270169A (en) * | 2015-09-01 | 2016-01-27 | 张涛 | Automobile capable of steering in situ and running in transverse direction |
| WO2016169252A1 (en) * | 2015-04-22 | 2016-10-27 | 南通市天源阀门制造有限公司 | Integrated stop valve |
| CN206274076U (en) * | 2016-10-27 | 2017-06-23 | 南通海狮船舶机械有限公司 | Fast valve |
| CN107540068A (en) * | 2017-09-28 | 2018-01-05 | 天津科创复兴科技咨询有限公司 | A kind of effective aerating apparatus that flocculate can be cleared up |
| CN108598590A (en) * | 2018-05-29 | 2018-09-28 | 黄山科太环保科技有限公司 | A kind of amorphous silicon membrane lithium battery etching device |
| CN110440010A (en) * | 2019-08-14 | 2019-11-12 | 韩国昊 | A kind of shut-off valve |
| CN209749620U (en) * | 2018-11-14 | 2019-12-10 | 福建农林大学 | Moon cake mould pressing device |
| CN111227949A (en) * | 2019-11-12 | 2020-06-05 | 青岛市市立医院 | Automatic bagging apparatus that overlaps of B ultrasonic probe |
| CN111271476A (en) * | 2020-01-20 | 2020-06-12 | 陈少同 | Stop valve |
| CN210745534U (en) * | 2019-10-29 | 2020-06-12 | 漯河食品职业学院 | Four-way propagation type prompt tone music player |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2058566A1 (en) * | 2006-08-11 | 2009-05-13 | Nippon Valqua Industries, Ltd. | Valve device |
-
2020
- 2020-06-19 CN CN202010564217.0A patent/CN111720557B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3096966A (en) * | 1959-07-23 | 1963-07-09 | Hills Mccanna Co | Sealed ball valve |
| CN103866518A (en) * | 2012-12-10 | 2014-06-18 | 黄淑琴 | Hair beating machine |
| WO2016169252A1 (en) * | 2015-04-22 | 2016-10-27 | 南通市天源阀门制造有限公司 | Integrated stop valve |
| CN204900874U (en) * | 2015-08-14 | 2015-12-23 | 南通市电站阀门有限公司 | Improved generation is long continuation of journey case structure of double containment for valve |
| CN105270169A (en) * | 2015-09-01 | 2016-01-27 | 张涛 | Automobile capable of steering in situ and running in transverse direction |
| CN206274076U (en) * | 2016-10-27 | 2017-06-23 | 南通海狮船舶机械有限公司 | Fast valve |
| CN107540068A (en) * | 2017-09-28 | 2018-01-05 | 天津科创复兴科技咨询有限公司 | A kind of effective aerating apparatus that flocculate can be cleared up |
| CN108598590A (en) * | 2018-05-29 | 2018-09-28 | 黄山科太环保科技有限公司 | A kind of amorphous silicon membrane lithium battery etching device |
| CN209749620U (en) * | 2018-11-14 | 2019-12-10 | 福建农林大学 | Moon cake mould pressing device |
| CN110440010A (en) * | 2019-08-14 | 2019-11-12 | 韩国昊 | A kind of shut-off valve |
| CN210745534U (en) * | 2019-10-29 | 2020-06-12 | 漯河食品职业学院 | Four-way propagation type prompt tone music player |
| CN111227949A (en) * | 2019-11-12 | 2020-06-05 | 青岛市市立医院 | Automatic bagging apparatus that overlaps of B ultrasonic probe |
| CN111271476A (en) * | 2020-01-20 | 2020-06-12 | 陈少同 | Stop valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111720557A (en) | 2020-09-29 |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20230821 Address after: 224000 No.166, Tongyu North Road, Funing County, Yancheng City, Jiangsu Province Applicant after: YANCHENG JINGGONG VALVE Co.,Ltd. Address before: Room 1493, 1st floor, building 041, block B, 188 Jinghua Road, high tech Zone, Ningbo, Zhejiang 315000 Applicant before: NINGBO ZHENGE HYDRAULIC TECHNOLOGY Co.,Ltd. |
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