CN111720557A - Novel stop valve - Google Patents
Novel stop valve Download PDFInfo
- Publication number
- CN111720557A CN111720557A CN202010564217.0A CN202010564217A CN111720557A CN 111720557 A CN111720557 A CN 111720557A CN 202010564217 A CN202010564217 A CN 202010564217A CN 111720557 A CN111720557 A CN 111720557A
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- Prior art keywords
- valve
- rod
- cavity
- rotating shaft
- 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 with the lower valve cavity is formed in the valve plate, and an outlet pipe and an inlet pipe are arranged on the side surface of the valve body; the valve body is fixedly provided with a valve cover at an 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 peripheral side surfaces of the square valve block; a rotating rod with the lower end extending into the frame plate is rotationally connected in the valve rod, 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 the sealing gasket of the valve clack can be replaced 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 stop valve, is one of the most widely used valves, and it is popular because the friction between the sealing gaskets in the opening and closing process is small, it is durable, the opening height is not large, it is easy to manufacture, it is convenient to maintain, it is not only suitable for the medium and low pressure, but also for the high pressure. The stop valve depends on the pressure of the valve rod, so that the valve clack is tightly attached to the valve seat, the medium is prevented from flowing, and the sealing effect is achieved. However, most of stop valves in the market have the defects of poor sealing performance and leakage after the valve seat and the valve clack are closed, so that great inconvenience is caused to use, loss is caused, and the working efficiency is influenced. When the valve clack damages and causes the leakage in the use of current stop valve, need stop whole pipeline or equipment, pull down the stop valve and maintain or change, influence production efficiency, moreover, many operating modes do not allow equipment to shut down, in case shut down can cause great economic loss.
Disclosure of Invention
The invention aims to provide a novel stop valve which is simple in structure and can replace a sealing gasket of a valve block on line without stopping.
In order to achieve the purpose, the invention provides the following technical scheme:
a 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 and the lower valve cavity is formed in the valve plate, 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 an opening of an 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 mode along the direction vertical 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 vertical 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 peripheral side surfaces of the square valve block; the rotary valve is characterized in that a rotary rod with the lower end extending into the frame plate is connected in the valve rod in a rotary mode, a transmission assembly connected with the square valve block and the rotary rod is arranged in the frame plate, and when the rotary rod rotates, the transmission assembly drives the sealing gaskets on the peripheral side faces of the square valve block to rotate to positions parallel to the valve plate.
Furthermore, the transmission assembly comprises a second rotating shaft, the second rotating shaft is rotatably connected in the frame plate and positioned above the square valve block, and the second rotating shaft is parallel to the first rotating shaft; a first bevel gear is fixedly mounted at the lower end of the rotating rod, and a second bevel gear meshed with the first bevel gear is fixedly mounted on the second rotating shaft; grooved wheels are arranged at two ends of the square valve block and are coaxially arranged with the first rotating shaft; and the positions of the second rotating shaft, which are close to the two ends, are provided with driving plates connected with the grooved wheels.
Furthermore, a driving 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-shaped grooves matched with the convex locking arc are uniformly distributed on the peripheral side wall of the grooved wheel along the circumferential direction, and a radial groove matched with the driving pin and arranged along the radial direction of the grooved wheel is arranged between every two adjacent concave arc-shaped grooves; and a notch is arranged on the wall of the outer periphery of the driving plate, and the driving pin is opposite to the notch and is arranged on a perpendicular bisector between two end points of the notch.
Furthermore, two sliding grooves are symmetrically formed in the inner side wall of the upper valve cavity in the direction perpendicular to the valve plate, and two sides of the frame plate are located in the two sliding grooves respectively; the lower end of the valve rod is provided with a T-shaped cutting groove, and the upper end of the frame plate is provided with a T-shaped lug which is positioned in the T-shaped cutting groove.
Further, the valve gap is equipped with the seal groove in the outside of valve rod, be equipped with the sealing washer of cup jointing on the valve rod in the seal groove, the fixed plug that is equipped with valve rod threaded connection of opening part of seal groove.
Furthermore, the upper end of the valve rod is provided with a rotary groove, the side surface of the rotary rod is provided with a convex shoulder positioned in the rotary groove, a gland sleeved on the rotary rod is fixedly arranged at an opening at the upper end of the rotary groove, and the gland is used for preventing the convex shoulder from separating from the rotary groove.
Further, the upper end fixed mounting of valve rod has first handle pole, the upper end fixed mounting of rotary rod has the second handle pole.
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, and when the sealing gasket in the working position is damaged, the square valve block is driven to rotate by controlling the driving plate to enable a new sealing gasket to be in the working position, so that the sealing gasket of the square valve block can be replaced on line without stopping, the continuous work of a pipeline or equipment is ensured, the operation efficiency of a system is improved, and the economic loss caused by stopping maintenance and replacing a valve clack is avoided.
Drawings
FIG. 1 is a cross-sectional view of the present invention with the valve block in the off position;
FIG. 2 is a sectional view taken along line A-A of FIG. 1;
FIG. 3 is a cross-sectional view of the valve block of the present invention open and the gasket being replaced;
FIG. 4 is a cross-sectional view taken along line B-B of FIG. 3;
FIG. 5 is a schematic three-dimensional structure of a valve block and a sheave according to the present invention;
fig. 6 is a three-dimensional structure diagram of the dial of the present invention.
Detailed Description
Referring to fig. 1-6, a novel stop valve includes a valve body 1, an upper valve chamber 1a and a lower valve chamber 1b are arranged in the valve body 1, a valve plate 1c is arranged between the upper valve chamber 1a and the lower valve chamber 1b in the valve body 1, a valve hole 1d for communicating the upper valve chamber 1a and the lower valve chamber 1b is arranged on the valve plate 1c, an outlet pipe 1f communicated with the upper valve chamber 1a and an inlet pipe 1e communicated with the lower valve chamber 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 an 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 vertical 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 vertical 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 peripheral side surfaces of the square valve block 2; the rotary rod 6 that the lower extreme stretched into frame plate 7 is connected with in the 5 internal rotations of valve rod, be equipped with the drive assembly who is connected with square valve piece 2 and rotary rod 6 in the frame plate 7, when rotary rod 6 rotated, drive the sealed pad 2a that seals on square valve piece 2 side all around through drive assembly and change to the position parallel with 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 positioned above the square valve block 2, and the second rotating shaft 8a is parallel to the first rotating shaft 8 b; a first bevel gear 9 is fixedly mounted at the lower end of the rotating rod 6, and a second bevel gear 10 meshed with the first bevel gear 9 is fixedly mounted on the second rotating shaft 8 a; grooved wheels 20 are arranged at two ends of the square valve block 2, and the grooved wheels 20 are coaxially arranged with the first rotating shaft 8 b; and the positions of the second rotating shaft 8a close to the two ends are respectively provided with a driving plate 8 connected with the grooved wheel 20.
A shifting pin 81 is connected to the shifting plate 8, a convex locking arc 82 is arranged on the peripheral side wall of the shifting plate 8, four concave arc-shaped grooves 202 matched with the convex locking arc 82 are uniformly distributed on the peripheral side wall of the grooved wheel 20 along the circumferential direction, and a radial groove 201 matched with the shifting pin 81 and arranged along the radial direction of the grooved wheel 20 is arranged between every two adjacent concave arc-shaped grooves 202; a notch 83 is arranged on the outer peripheral side wall of the dial 8, and the dial pin 81 is opposite to the notch 83 and is arranged on a perpendicular bisector 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 vertical 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 lug 71 positioned in the T-shaped cutting groove 52.
Valve gap 3 is equipped with seal groove 31 in the outside of valve rod 5, be equipped with the sealing washer 32 of cup jointing on valve rod 5 in the seal groove 31, the fixed plug 4 that is equipped with valve rod 5 threaded connection of opening part of seal 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 convex shoulder 61 positioned in the rotary groove 51, the opening at 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 convex shoulder 61 from separating 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 is used, the valve rod 5 is driven to rotate through the first handle rod 11, the valve rod 5 moves in 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 frame plate 7 drives the sealing gasket 2a on the square valve block 2 to leave the upper end of the valve hole 1d to open the valve hole 1d when sliding 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 on the upper end of the valve hole 1d to close the valve hole 1d, and the inlet pipe 1e is disconnected with 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 rotating rod 6 to rotate, the rotating rod 6 drives the second rotating shaft 8a to rotate through the meshing of the first bevel gear 9 and the second bevel gear 10, the second rotating shaft 8a drives the square valve block 2 to rotate by 90 degrees through the matching of the shifting pin 81 on the shifting plate 8 and the radial groove 201 and the matching of the convex locking arc 82 and the concave arc-shaped groove 202 when rotating, and the new sealing gasket 2a is located at 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 work of the pipeline or equipment, improve the running efficiency of the system and avoid the economic loss caused by stopping maintenance and replacing the valve clack.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (7)
1. A 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 and the lower valve cavity is formed in the valve plate, 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 an opening of an 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 peripheral side surfaces of the square valve block; the rotary valve is characterized in that a rotary rod with the lower end extending into the frame plate is connected in the valve rod in a rotary mode, a transmission assembly connected with the square valve block and the rotary rod is arranged in the frame plate, and when the rotary rod rotates, the transmission assembly drives the sealing gaskets on the peripheral side faces of the square valve block to rotate to positions parallel to the valve plate.
2. The novel shut-off valve of claim 1, wherein the transmission assembly includes a second rotating shaft rotatably connected in the frame plate above the square valve block, the second rotating shaft being parallel to the first rotating shaft; a first bevel gear is fixedly mounted at the lower end of the rotating rod, and a second bevel gear meshed with the first bevel gear is fixedly mounted on the second rotating shaft; grooved wheels are arranged at two ends of the square valve block and are coaxially arranged with the first rotating shaft; and the positions of the second rotating shaft, which are close to the two ends, are provided with driving plates connected with the grooved wheels.
3. The novel stop valve according to claim 2, characterized in that a dial pin is connected to the dial plate, a convex locking arc is provided on the peripheral side wall of the dial plate, four concave arc grooves are uniformly provided along the peripheral side wall of the grooved wheel and are matched with the convex locking arc, and a radial groove is provided between two adjacent concave arc grooves and is matched with the dial pin and is arranged along the radial direction of the grooved wheel; and a notch is arranged on the wall of the outer periphery of the driving plate, and the driving pin is opposite to the notch and is arranged on a perpendicular bisector between two end points of the notch.
4. The novel stop valve according to claim 1, characterized in that the inner side wall of the upper valve chamber is symmetrically provided with two sliding grooves along a direction perpendicular to the valve plate, and two sides of the frame plate are respectively positioned in the two sliding grooves; the lower end of the valve rod is provided with a T-shaped cutting groove, and the upper end of the frame plate is provided with a T-shaped lug which is positioned in the T-shaped cutting groove.
5. The novel stop valve as claimed in 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 connected with the valve rod through threads is fixedly arranged at the opening of the sealing groove.
6. The novel stop valve as claimed in claim 1, wherein a rotary groove is formed at the upper end of the valve rod, a shoulder positioned 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 at the upper end of the rotary groove, and the gland is used for preventing the shoulder from being separated from the rotary groove.
7. The novel stop valve as claimed in claim 1, wherein a first handle lever is fixedly mounted on the upper end of the valve stem, and a second handle lever is fixedly mounted on the upper end of the rotary lever.
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 true CN111720557A (en) | 2020-09-29 |
| CN111720557B 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) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112212021A (en) * | 2020-10-14 | 2021-01-12 | 任林赟 | Gate valve |
| CN116164158A (en) * | 2023-04-26 | 2023-05-26 | 石家庄菲斯特自控设备有限公司 | Transmission device for valve |
| WO2024067661A1 (en) * | 2022-09-29 | 2024-04-04 | 沈阳耐蚀合金泵股份有限公司 | Longitudinally-rotating valve clack shielding valve capable of being updated online without disassembly |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3096966A (en) * | 1959-07-23 | 1963-07-09 | Hills Mccanna Co | Sealed ball valve |
| US20090189107A1 (en) * | 2006-08-11 | 2009-07-30 | Nippon Valqua Industries, Ltd. | Valve device |
| 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 |
-
2020
- 2020-06-19 CN CN202010564217.0A patent/CN111720557B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3096966A (en) * | 1959-07-23 | 1963-07-09 | Hills Mccanna Co | Sealed ball valve |
| US20090189107A1 (en) * | 2006-08-11 | 2009-07-30 | Nippon Valqua Industries, Ltd. | Valve device |
| 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 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112212021A (en) * | 2020-10-14 | 2021-01-12 | 任林赟 | Gate valve |
| WO2024067661A1 (en) * | 2022-09-29 | 2024-04-04 | 沈阳耐蚀合金泵股份有限公司 | Longitudinally-rotating valve clack shielding valve capable of being updated online without disassembly |
| CN116164158A (en) * | 2023-04-26 | 2023-05-26 | 石家庄菲斯特自控设备有限公司 | Transmission device for valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111720557B (en) | 2023-09-22 |
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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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