CN110686106A - Safety valve with advance safeguard function - Google Patents
Safety valve with advance safeguard function Download PDFInfo
- Publication number
- CN110686106A CN110686106A CN201910981075.5A CN201910981075A CN110686106A CN 110686106 A CN110686106 A CN 110686106A CN 201910981075 A CN201910981075 A CN 201910981075A CN 110686106 A CN110686106 A CN 110686106A
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- China
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- frame
- valve body
- strip
- water inlet
- safety valve
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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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
- Check Valves (AREA)
Abstract
The invention discloses a safety valve with advanced protection function, which comprises a water inlet channel, a water outlet channel, a middle rotary drum, a stabilizing frame, a spring drum, a reset arm rod and a pressure frame, wherein the water inlet channel is in threaded connection with the right side of the middle rotary drum, the sealed channel formed by a first sealing strip and a second sealing strip can be flushed open when a flowing object in a pipeline impacts, so that the sealed channel can be inhibited in violent movement, a first type abutting column and a second type abutting column which are respectively arranged at the upper end and the lower end have certain elastic effect, the explosion time can be slightly relieved, the reaction time of the safety valve is longer, a stressed ball and a friction plate can be collided towards the inner side of the spring drum when an animal in equipment produces violent movement, the impact force can be directly flushed into a pressure seat in the spring drum, so that the pressure seat can quickly rebound the first sealing strip, the second sealing strip, the first type abutting column and the second type abutting column to seal a water inlet, let spring cylinder and last shrouding have sufficient reaction time, let the effect that the relief valve produced bigger.
Description
Technical Field
The invention relates to a valve, in particular to a safety valve with an advanced protection function.
Background
The valve is "goalkeeper" among pipeline and the gas transmission process, can freely control the velocity of flow and the flow of gas or liquid, divide into very many according to the difference of effect, and wherein the relief valve is comparatively common, but can automatic start when the inside flowing thing pressure of equipment overloads with it by, and the protectiveness is higher, and the current technical consideration is not comprehensive, has following drawback:
the state of the flowing matter in the equipment in the prior art is possibly in a relatively unstable state, the pressure reaches the bearing limit at a moment, the brake in the safety valve explodes in time, and the protection capability is deficient.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a safety valve with an early protection function, so as to solve the problems that the state of a flowing object in equipment in the prior art is possibly in a relatively unstable state, the pressure reaches a bearing limit state instantly, a braking part in the safety valve explodes before reaching the bearing limit, and the protection capability is insufficient.
In order to achieve the purpose, the invention is realized by the following technical scheme: a safety valve with an advance protection function structurally comprises a water inlet channel, a water outlet channel, a middle rotary drum, a stabilizing frame, a spring cylinder, a reset arm rod and a pressure applying frame, wherein the water inlet channel is in threaded connection with the right side of the middle rotary drum, the water outlet channel is in vertical threaded connection with the lower side of the middle rotary drum, the stabilizing frame is locked above the middle rotary drum through a rivet, the pressure applying frame is mechanically connected above the spring cylinder, and the reset arm rod is movably connected to the left side of the pressure applying frame and is mechanically connected with the spring cylinder.
In order to optimize the technical scheme, the method further comprises the following steps:
according to one implementation mode, the middle rotating cylinder is composed of an upper sealing plate, a water inlet, a locking mechanism, a blocking piece, a water outlet, an elastic pad and a circular valve body, the circular valve body is locked below the stabilizing frame through rivets, the upper sealing plate is connected to the top inside the circular valve body in a sliding mode and penetrates through the stabilizing frame to be welded with the spring cylinder, the elastic pad is connected to the left end inside the circular valve body in an adhesive mode, the water outlet is formed in the bottom inside the circular valve body, the water inlet is formed in the right side inside the circular valve body, and the locking mechanism is movably attached to the left side of the water inlet and movably connected with the circular valve body.
According to one kind can implement mode, blockade mechanism supports post, type by first locking strip, second locking strip, one type and supports the post, the type supports the post, the feedback frame is pressed by force, the chain piece is constituteed, first blockade strip articulates the right side in circular valve body inside, the activity laminating of second blockade strip is in the top of first locking strip, chain piece nailed joint is on the right side of first locking strip, second locking strip, a type supports post, type and respectively is equipped with two and glue the upper and lower extreme of connecting at first locking strip, second locking strip respectively.
According to one implementation mode, the forced pressure feedback frame is provided with two, the forced pressure feedback frame on the upper side is composed of a contraction ring, a resistance strip, an elastic cylinder and a feedback device, the elastic cylinder is perpendicularly and elastically connected above the second locking strip, the contraction ring is connected to the bottom inside the elastic cylinder in a gluing mode, the resistance strip is provided with more than two nails which are evenly arranged at the same distance and connected to the left end and the right end of the elastic cylinder, and the feedback device is movably connected to the inside of the elastic cylinder and tightly attached to the contraction ring.
According to one implementation mode, the feedback device comprises a stressed ball, a friction plate, a positioning rope, a spring pile and a force application seat, the stressed ball is movably attached to a contraction ring, the friction plate is provided with more than two nails which are uniform in equal distance and connected to the outer surface of the stressed ball, the positioning rope is buckled above the stressed ball through a buckle, the spring pile is connected with a top nail of the positioning rope, and the force application seat is mechanically connected to the center inside the spring pile.
Advantageous effects
The safety valve with the advanced protection function, disclosed by the invention, is reasonable in design and strong in functionality, and has the following beneficial effects:
according to the invention, the first sealing strip, the second sealing strip, the first abutting column and the second abutting column are arranged, so that the sealing channel formed by the first sealing strip and the second sealing strip can be opened when a flowing object in the pipeline impacts, the pipeline can be restrained in severe motion, and the first abutting column and the second abutting column which are respectively arranged at the upper end and the lower end have certain elastic effect, so that the explosion time can be slightly relieved, and the reaction time of the safety valve is longer.
According to the invention, through the arranged lock sealing mechanism, when the flow animal generates violent movement in the equipment, the stressed ball and the friction plate can be impacted towards the inner side of the elastic cylinder, the impacting force can directly impact the stressing seat in the elastic pile, so that the stressing seat can quickly rebound the stressing seat to seal and lock the water inlet by the first lock sealing strip, the second lock sealing strip, the first type abutting column and the second type abutting column, the spring cylinder and the upper sealing plate have enough reaction time, and the action effect generated by the safety valve is larger.
Drawings
Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of the embodiments of the invention when taken in conjunction with the accompanying drawings, in which:
fig. 1 is a schematic structural diagram of a safety valve with an early protection function according to the present invention.
Fig. 2 is a schematic structural diagram of the interior of a rotary drum in the safety valve with the function of early protection.
Fig. 3 is a detailed structural schematic diagram of a safety valve locking mechanism with an early protection function according to the present invention.
Fig. 4 is a schematic structural diagram of the interior of a safety valve feedback frame with an early protection function according to the present invention.
Fig. 5 is a detailed structural schematic diagram of a safety valve feedback device with an early protection function according to the present invention.
Description of reference numerals: the water inlet channel 0, the water outlet channel 1, the transfer cylinder 2, the stabilizing frame 3, the spring cylinder 4, the reset arm rod 5, the pressure applying frame 6, the upper sealing plate 20, the water inlet 21, the sealing mechanism 22, the blocking piece 23, the water outlet 24, the spring washer 25, the circular valve body 26, the first sealing strip 220, the second sealing strip 221, the first type abutment 222, the second type abutment 223, the strong pressure feedback frame 224, the chain piece 225, the contraction ring 240, the resistance strip 241, the elastic cylinder 242, the feedback device 243, the force bearing ball 430, the friction plate 431, the positioning rope 432, the spring pile 433 and the force applying seat 434.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Referring to fig. 1, the present invention provides a safety valve with advanced protection function: the structure of the device comprises a water inlet channel 0, a water outlet channel 1, a transfer cylinder 2, a stabilizing frame 3, a spring cylinder 4, a reset arm rod 5 and a pressure applying frame 6, wherein the water inlet channel 0 is in threaded connection with the right side of the transfer cylinder 2, the water outlet channel 1 is in vertical threaded connection with the lower side of the transfer cylinder 2, the stabilizing frame 3 is locked above the transfer cylinder 2 through a rivet, the pressure applying frame 6 is mechanically connected above the spring cylinder 4, and the reset arm rod 5 is movably connected to the left side of the pressure applying frame 6 and is mechanically connected with the spring cylinder 4.
Referring to fig. 2, the middle rotary drum 2 is composed of an upper sealing plate 20, a water inlet 21, a sealing mechanism 22, a blocking piece 23, a water outlet 24, a spring washer 25 and a circular valve body 26, the circular valve body 26 is locked below the fixing frame 3 through rivets, the upper sealing plate 20 is slidably connected to the top inside the circular valve body 26 and penetrates through the fixing frame 3 to be welded with the spring barrel 4, the spring washer 25 is adhesively connected to the left end inside the circular valve body 26, the water outlet 24 is arranged at the bottom inside the circular valve body 26, the water inlet 21 is arranged at the right side inside the circular valve body 26, the sealing mechanism 22 is movably attached to the left side of the water inlet 21 and movably connected with the circular valve body 26, a medium in a pipeline flows downwards from the right side and then impacts the spring washer 25 to fall down, so that the pressure inside the circular valve body 26 can be relieved, the impact force is buffered, and the upper sealing plate 20 can seal the spring barrel 4 and the circular valve body 26 to prevent air leakage and water, the water outlet 24 can be blocked after activation.
Referring to fig. 3, the locking mechanism 22 is composed of a first locking bar 220, a second locking bar 221, a first type abutment 222, a second type abutment 223, a strong pressure feedback frame 224, and a link 225, the first locking strip 220 is hinged at the right side inside the circular valve body 26, the second locking strip 221 is movably attached above the first locking strip 220, the chain piece 225 is nailed to the right of the first and second locking strips 220 and 221, the first-type abutting column 222 and the second-type abutting column 223 are respectively provided with two abutting columns and are respectively glued and connected to the upper end and the lower end of the first sealing strip 220 and the second sealing strip 221, the first sealing strip 220 and the second sealing strip 221 can be separated along with the flowing of the flowing object, the first type support column 222 and the second type support column 223 are adhesive tapes with good elasticity, and can contract when impacted, so that protection of multiple defense lines is provided.
Referring to fig. 4, there are two strong pressure feedback frames 224, the upper strong pressure feedback frame 224 is composed of a contraction ring 240, a resistance strip 241, an elastic tube 242 and a feedback device 243, the elastic cylinder 242 is vertically and elastically connected above the second locking strip 221, the contraction ring 240 is connected to the bottom of the inside of the elastic cylinder 242 by glue, the resistance strips 241 are provided with more than two nails which are evenly arranged at equal intervals and are connected with the left end and the right end of the elastic cylinder 242, the feedback device 243 is movably connected inside the elastic tube 242 and is tightly attached to the contraction ring 240, the contraction ring 240 can contract when a flowing animal flows in, the feedback device 243 cannot be touched in normal flowing, the effect of preventing mistaken touch is achieved, the resistance strip 241 enables the whole body to have large resistance in retraction, and the error touch of equipment is prevented when pressure is changed due to uneven change of the fault-tolerant pressure.
Referring to fig. 5, the feedback device 243 is composed of a force-receiving ball 430, a friction plate 431, a positioning rope 432, a spring pile 433, and a force-applying seat 434, wherein the force-receiving ball 430 is movably attached to the contraction ring 240, the friction plate 431 is provided with more than two nails uniformly arranged at equal intervals and connected to the outer surface of the force-receiving ball 430, the positioning rope 432 is fastened above the force-receiving ball 430 by a buckle, the spring pile 433 is connected to the top of the positioning rope 432, the force-applying seat 434 is mechanically connected to the center inside the spring pile 433, the friction plate 431 surrounds the outside of the force-receiving ball 430, and cannot easily move, the detection capability is stronger, the force-applying seat 434 can quickly generate a rebound force after being subjected to a great impact, and the feedback speed is higher.
The water inlet channel 0 and the water outlet channel 1 of the device are respectively connected with two ends of the pipeline, fluid enters the water inlet 21 from the water inlet channel 0, the first sealing strip 220 and the second sealing strip 221 are flushed to extrude the first type support column 222 and the second type support column 223, then the fluid enters the water outlet 24 to flow out through the water outlet channel 1 after impacting the elastic pad 25, when the fluid pressure in the pipeline is suddenly increased, the first sealing strip 220 and the second sealing strip 221 are instantly flushed to compress the first type support column 222 and the second type support column 223 to the limit, the contraction ring 240 is compressed, the stress ball 430 and the friction plate 431 are quickly pushed to impact the stress seat 434 on the elastic pile 433, the impact strength is enough to touch the stress seat 434, a reverse force can be generated to eject the stress ball 430, the first sealing strip 220 and the second sealing strip 221 to be pushed away, the water inlet 21 is tightly sealed, and the processes are carried out, the spring cylinder 4 and the upper sealing plate 20 are popped up by the pressure applying frame 6 to block the water outlet 24 and discharge the fluid, so that time is provided for the expansion of the safety valve, and the safety valve can be started smoothly.
The invention can break the sealed channel formed by the first sealing strip 220 and the second sealing strip 221 when the flowing object in the pipeline impacts through the combination of the above parts, so that the channel can be inhibited during violent movement, the first type abutment 222 and the second type abutment 223 respectively arranged at the upper end and the lower end can have a certain elastic effect, so that the explosion time can be slightly alleviated, the reaction time of the safety valve is more, the force-bearing ball 430 and the friction plate 431 can be impacted towards the inner side of the elastic cylinder 242 when the flow animal in the equipment produces violent movement, the impacting force can directly impact the force-bearing seat 434 in the elastic pile 433, the force-bearing seat 434 can quickly rebound the force-bearing seat to enable the first sealing strip 220, the second sealing strip 221, the first type abutment 222 and the second type abutment 223 to seal and lock the water inlet 21, the spring cylinder 4 and the upper sealing plate 20 have enough reaction time, and the effect produced by the safety valve is larger.
The specific embodiments described herein are merely illustrative of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the scope of the invention or exceeding the scope of the claims appended hereto.
Claims (5)
1. The utility model provides a relief valve with safeguard function in advance, its structure includes inlet channel (0), water outlet channel (1), transfer section of thick bamboo (2), firm frame (3), spring cartridge (4), reset armed lever (5), frame (6) of exerting pressure, its characterized in that:
the water inlet channel (0) is arranged on the right side of the middle rotary drum (2), the water outlet channel (1) is vertically fixed below the middle rotary drum (2), the stabilizing frame (3) is arranged above the middle rotary drum (2), the spring barrel (4) is vertically fixed above the stabilizing frame (3), the pressure applying frame (6) is connected above the spring barrel (4), and the reset arm rod (5) is arranged on the left side of the pressure applying frame (6) and connected with the spring barrel (4).
2. The safety valve with an advance guard function according to claim 1, characterized in that: the middle rotary drum (2) is composed of an upper sealing plate (20), a water inlet (21), a blocking mechanism (22), a blocking piece (23), a water outlet (24), an elastic cushion (25) and a circular valve body (26), the circular valve body (26) is fixedly arranged below the stabilizing frame (3), the upper sealing plate (20) is tightly attached to the top inside the circular valve body (26) and penetrates through the stabilizing frame (3) to be connected with the spring barrel (4), the elastic cushion (25) is tightly fixed to the left end inside the circular valve body (26), the water outlet (24) is arranged at the bottom inside the circular valve body (26), the water inlet (21) is arranged on the right side inside the circular valve body (26), and the blocking mechanism (22) is tightly attached to the left side of the water inlet (21) and is movably connected with the circular valve body (26).
3. The safety valve with an advance guard function according to claim 2, characterized in that: blockade mechanism (22) are supported post (222), type by first lock strip (220), second lock strip (221), a type and are supported post (223), forced pressure feedback frame (224), chain piece (225) and constitute, first lock strip (220) are installed on the inside right side of circular valve body (26), second lock strip (221) hug closely in the top of first lock strip (220), the right side at first lock strip (220), second lock strip (221) is fixed in chain piece (225), a type supports post (222), type and supports post (223) and respectively is equipped with two and fixes respectively at the upper and lower end of first lock strip (220), second lock strip (221).
4. The safety valve with an advance guard function according to claim 3, characterized in that: the pressure feedback frame (224) is provided with two, the pressure feedback frame (224) above the pressure feedback frame is composed of a contraction ring (240), a resistance strip (241), an elastic tube (242) and a feedback device (243), the elastic tube (242) is vertically fixed above a second locking strip (221), the contraction ring (240) is arranged at the bottom of the inner portion of the elastic tube (242), the resistance strip (241) is provided with more than two and equally-spaced and uniformly distributed at the left end and the right end of the elastic tube (242), and the feedback device (243) is arranged in the elastic tube (242) and tightly attached to the contraction ring (240).
5. The safety valve with an advance guard function according to claim 4, characterized in that: the feedback device (243) is composed of a stress ball (430), friction plates (431), a positioning rope (432), elastic piles (433) and a stress application seat (434), wherein the stress ball (430) is tightly attached to a contraction ring (240), the friction plates (431) are provided with more than two and are uniformly distributed on the outer surface of the stress ball (430) at equal intervals, the positioning rope (432) is connected above the stress ball (430), the elastic piles (433) are fixed with the top of the positioning rope (432), and the stress application seat (434) is arranged at the center of the inner part of the elastic piles (433).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110053253.5A CN113154099A (en) | 2019-11-28 | 2019-11-28 | Safety valve and operation method |
| CN201910981075.5A CN110686106B (en) | 2019-11-28 | 2019-11-28 | Safety valve with advance safeguard function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910981075.5A CN110686106B (en) | 2019-11-28 | 2019-11-28 | Safety valve with advance safeguard function |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110053253.5A Division CN113154099A (en) | 2019-11-28 | 2019-11-28 | Safety valve and operation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110686106A true CN110686106A (en) | 2020-01-14 |
| CN110686106B CN110686106B (en) | 2021-03-19 |
Family
ID=69112922
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110053253.5A Withdrawn CN113154099A (en) | 2019-11-28 | 2019-11-28 | Safety valve and operation method |
| CN201910981075.5A Active CN110686106B (en) | 2019-11-28 | 2019-11-28 | Safety valve with advance safeguard function |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110053253.5A Withdrawn CN113154099A (en) | 2019-11-28 | 2019-11-28 | Safety valve and operation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN113154099A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0089402A2 (en) * | 1982-03-24 | 1983-09-28 | Bopp & Reuther Aktiengesellschaft | Security valve with a friction device for the suppression of valve vibrations |
| SU1670277A1 (en) * | 1988-11-16 | 1991-08-15 | Всесоюзный Научно-Исследовательский И Проектно-Конструкторский Институт Атомного Энергетического Машиностроения | Safety valve |
| CN2379668Y (en) * | 1999-01-23 | 2000-05-24 | 徐振 | Combination and low resistance type check valve |
| TWM301968U (en) * | 2006-06-21 | 2006-12-01 | Guo-Guang Li | Steady structure improvement for safety relief valve |
| CN101240860A (en) * | 2008-03-06 | 2008-08-13 | 吴江市东吴机械有限责任公司 | Safety valve |
| CN103727302A (en) * | 2012-10-10 | 2014-04-16 | 成都掌握移动信息技术有限公司 | Safety valve with pressure alarm |
| CN208457281U (en) * | 2018-04-17 | 2019-02-01 | 南安广友五金制品有限公司 | A kind of spring hardware safety valve |
| CN208634455U (en) * | 2018-04-17 | 2019-03-22 | 南安广友五金制品有限公司 | A kind of hardware safety valve facilitating adjusting |
| CN109654267A (en) * | 2019-02-28 | 2019-04-19 | 杭州华惠阀门有限公司 | A kind of overcritical full-bore type safety valve manufactured |
| CN208951369U (en) * | 2018-10-19 | 2019-06-07 | 阿司米阀门有限公司 | Three circle of one kind adjusts high-performance spring Fall lift safety valve |
| CN109915635A (en) * | 2017-12-13 | 2019-06-21 | 郑立新 | A kind of safety valve |
| CN109944963A (en) * | 2017-12-20 | 2019-06-28 | 蒋萍 | A kind of heat temperature resistant safe valve |
-
2019
- 2019-11-28 CN CN202110053253.5A patent/CN113154099A/en not_active Withdrawn
- 2019-11-28 CN CN201910981075.5A patent/CN110686106B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0089402A2 (en) * | 1982-03-24 | 1983-09-28 | Bopp & Reuther Aktiengesellschaft | Security valve with a friction device for the suppression of valve vibrations |
| SU1670277A1 (en) * | 1988-11-16 | 1991-08-15 | Всесоюзный Научно-Исследовательский И Проектно-Конструкторский Институт Атомного Энергетического Машиностроения | Safety valve |
| CN2379668Y (en) * | 1999-01-23 | 2000-05-24 | 徐振 | Combination and low resistance type check valve |
| TWM301968U (en) * | 2006-06-21 | 2006-12-01 | Guo-Guang Li | Steady structure improvement for safety relief valve |
| CN101240860A (en) * | 2008-03-06 | 2008-08-13 | 吴江市东吴机械有限责任公司 | Safety valve |
| CN103727302A (en) * | 2012-10-10 | 2014-04-16 | 成都掌握移动信息技术有限公司 | Safety valve with pressure alarm |
| CN109915635A (en) * | 2017-12-13 | 2019-06-21 | 郑立新 | A kind of safety valve |
| CN109944963A (en) * | 2017-12-20 | 2019-06-28 | 蒋萍 | A kind of heat temperature resistant safe valve |
| CN208457281U (en) * | 2018-04-17 | 2019-02-01 | 南安广友五金制品有限公司 | A kind of spring hardware safety valve |
| CN208634455U (en) * | 2018-04-17 | 2019-03-22 | 南安广友五金制品有限公司 | A kind of hardware safety valve facilitating adjusting |
| CN208951369U (en) * | 2018-10-19 | 2019-06-07 | 阿司米阀门有限公司 | Three circle of one kind adjusts high-performance spring Fall lift safety valve |
| CN109654267A (en) * | 2019-02-28 | 2019-04-19 | 杭州华惠阀门有限公司 | A kind of overcritical full-bore type safety valve manufactured |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113154099A (en) | 2021-07-23 |
| CN110686106B (en) | 2021-03-19 |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhou Yina Inventor before: Xie Shue |
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| CB03 | Change of inventor or designer information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230419 Address after: No. 3858, Shanghai Bao Qian highway, Jiading District, Shanghai Patentee after: SHANGHAI MECCO VALVE Co.,Ltd. Address before: 510663 No. 10 Shenzhou Road, Guangzhou Science City, Guangzhou, Guangdong Province Patentee before: Xie Shue |
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| TR01 | Transfer of patent right |