CN110793734A - Leakproofness detection device is used in valve production - Google Patents

Leakproofness detection device is used in valve production Download PDF

Info

Publication number
CN110793734A
CN110793734A CN201911267497.2A CN201911267497A CN110793734A CN 110793734 A CN110793734 A CN 110793734A CN 201911267497 A CN201911267497 A CN 201911267497A CN 110793734 A CN110793734 A CN 110793734A
Authority
CN
China
Prior art keywords
fixedly connected
box body
sliding
air pipe
support
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201911267497.2A
Other languages
Chinese (zh)
Inventor
邓晴
李训花
周正启
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
YUEYANG ZHUSHENG VALVE PIPELINE CO Ltd
Original Assignee
YUEYANG ZHUSHENG VALVE PIPELINE CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by YUEYANG ZHUSHENG VALVE PIPELINE CO Ltd filed Critical YUEYANG ZHUSHENG VALVE PIPELINE CO Ltd
Priority to CN201911267497.2A priority Critical patent/CN110793734A/en
Publication of CN110793734A publication Critical patent/CN110793734A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00Investigating fluid-tightness of structures
    • G01M3/02Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • G01M3/28Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
    • G01M3/2876Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for valves

Abstract

The invention discloses a tightness detection device for valve production, which relates to the technical field of valves and comprises a box body, wherein a first support plate is fixedly connected on the box body, a sliding base is slidably connected on the first support plate, a first electric telescopic rod is fixedly connected at the top of the sliding base, two ends of the first support plate are slidably connected with a sliding support, a first driving device is arranged below the sliding support, a second support plate is fixedly connected on the box body above the first support plate, a sliding sleeve is slidably connected on the second support plate, a second electric telescopic rod is fixedly connected below the sliding sleeve, a sealing soft cylinder is fixedly connected at the bottom of the second electric telescopic rod, an air pump is fixedly connected at one side of the box body, a sealing air pipe is fixedly connected at the other side of the box body, and a second driving device is arranged above the sliding sleeve. The device is not influenced by the surrounding environment, is easy to observe, has simple principle and is convenient to use.

Description

Leakproofness detection device is used in valve production
Technical Field
The invention relates to the technical field of valves, in particular to a tightness detection device for valve production.
Background
The valve is seen everywhere in our daily life, the application is very wide, the valve is large enough for industrial production, and the tap water valve as small as household water is used in different places, the requirements for the valve in production are very strict, for manufacturers producing sealing valves, the quality inspection is very strict along with the valve before finished products are delivered, the inspection is not only for the appearance quality, but also for the sealing performance, and more importantly, the sealing performance directly influences the sealing valve, the actual use process is avoided, the production progress is avoided being influenced, so that the device for detecting the sealing performance of the valve is very necessary to design and produce, and the problems in the valve production process can be effectively reduced.
The invention discloses a tightness detection device for valve production in a Chinese patent publication No. CN209656235U, which inflates a valve in a seal box through an air pump, and an air pressure detection device is arranged in the seal box to observe the change of air pressure in the box body to judge that the ventilated valve is air leakage.
Disclosure of Invention
The invention provides a tightness detection device for valve production, which solves the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme:
a sealing detection device for valve production comprises a box body, wherein a first supporting plate is fixedly connected to the box body, a first spring is arranged at each of two ends of the first supporting plate, one side of the first spring is fixedly connected with the box body, a first stop block is fixedly connected to one side, away from the box body, of the first spring, a sliding base is slidably connected to the first supporting plate, a first electric telescopic rod is fixedly connected to the top of the sliding base, a sealing head is fixedly connected to the top of the first electric telescopic rod, a sliding support is slidably connected to the first supporting plate on each of two sides of the sliding base, a second spring is fixedly connected to one side of the sliding support, a second stop block is fixedly connected to one side of the second spring, a first driving device is arranged below the sliding support, a mounting base is fixedly connected to the top of the sliding support, a fixing plate is fixedly connected to the top of the mounting base, a positioning block is fixedly connected to one, sliding connection sliding sleeve in No. two backup pads, sliding sleeve below fixed connection electric telescopic handle No. two, the sealed soft section of thick bamboo of electric telescopic handle bottom fixed connection No. two, the fixed connection air pump on the box of sliding sleeve one side, sliding sleeve keeps away from the sealed trachea of fixed connection on the box of air pump one side, set up drive arrangement No. two on the box of sliding sleeve top.
As a preferable technical scheme of the invention, the first driving device comprises a first motor, the first motor is fixedly connected to the box body, a support column is fixedly connected to the box body on one side of the first motor, the upper end of the support column is rotatably connected with a first gear, a driving shaft of the first motor is in transmission connection with the first gear, and the first gear is in meshing transmission connection with the sliding support.
As a preferred technical scheme of the invention, the second driving device comprises a second motor which is fixedly connected with the box body, a driving shaft of the second motor is rotatably connected with a second gear, and the second gear is in meshing transmission connection with the sliding sleeve.
According to a preferred technical scheme of the invention, a first air pipe is arranged between the sealing soft cylinder and the air pump, one side of the first air pipe is fixedly connected with the air pump, one side of the first air pipe, which is far away from the air pump, is fixedly connected with the sealing soft cylinder, the first air pipe, the air pump and the sealing soft cylinder are communicated, a second air pipe is arranged between the sealing soft cylinder and the sealing air pipe, one end of the second air pipe is fixedly connected with the sealing air pipe, one end of the second air pipe, which is far away from the sealing air pipe, is fixedly connected with the sealing soft cylinder, and the second air pipe, the sealing air pipe.
In a preferred embodiment of the present invention, the sealed air tube is provided with a small plastic ball inside, and the sealed air tube passes through the box body and extends to the upper side.
As a preferable technical scheme of the invention, one side of the box body is provided with an opening, the sliding support is in an L shape with a through inner part, and the first air pipe and the second air pipe are both telescopic rubber hoses.
The invention has the following advantages: the invention puts the valve to be detected on the top of the first electric telescopic rod, the sealing head is matched with the bottom through hole of the valve to realize the effect of sealing the lower end, the first driving device is started to draw the sliding supports at the two ends towards the middle, the valve is clamped and fixed through the fixed baffle and the positioning block, the second electric telescopic rod is started to communicate and seal the sealing soft cylinder with the interface at the other end of the valve, the air pump is used for realizing ventilation, the plastic small ball in the dynamic sealing air pipe is observed to be jacked to the top of the sealing air pipe, the air pump is closed at the moment, the vertical position of the plastic small ball is observed, if the small ball descends, the valve is proved to leak air, if the small ball does not descend, the sealing performance of the valve is proved to be good, the overall working position can be adjusted through the second driving mechanism, the invention is suitable for detecting the air tightness of more different types of valves, the invention, the valve can not be influenced by the surrounding environment, the air leakage valve can be easily observed and found, and the valve is simple in principle, practical and convenient.
Drawings
Fig. 1 is a schematic structural diagram of a main body of a tightness detection device for valve production.
Fig. 2 is a schematic structural diagram of a side surface of a tightness detection device for valve production.
Fig. 3 is a schematic structural view of a sliding support in the tightness detection device for valve production.
In the figure: 1. a box body; 2. a first support plate; 3. a first driving device; 4. a sliding support; 5. a second spring; 6. a second sliding block; 7. a sliding base; 8. a first electric telescopic rod; 9. a first gear; 10. a pillar; 11. a first motor; 12. a first sliding block; 13. a first spring; 14. installing a base; 15. fixing a baffle plate; 16. positioning blocks; 17. a sealing head; 18. an air pump; 19. a second support plate; 20. a sliding sleeve; 21. a second gear; 22. a second motor; 23. plastic pellets; 24. sealing the air pipe; 25. a first air pipe; 26. a second electric telescopic rod; 27. a second air pipe; 28. sealing the soft cylinder; 29; a second driving device; 30, of a nitrogen-containing gas; and (4) opening.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Example 1
Referring to fig. 1-3, a device for detecting the sealing performance of a valve comprises a box body 1, a first support plate 2 is fixedly connected to the box body 1, a first spring 13 is arranged at each of two ends of the first support plate 2, one side of the first spring 13 is fixedly connected to the box body 1, a first slide block 12 is fixedly connected to one side of the first spring 13 away from the box body 1, a slide base 7 is slidably connected to the first support plate 2, a first electric telescopic rod 8 is fixedly connected to the top of the slide base 7, a sealing head 17 is fixedly connected to the top of the first electric telescopic rod 8, a slide support 4 is slidably connected to the first support plate 2 at each of two sides of the slide base 7, a second spring 5 is fixedly connected to one side of the slide support 4, a second slide block 6 is fixedly connected to one side of the second spring 5, a first driving device 3 is arranged below the slide support 4, a mounting base 14 is fixedly connected to the, install 14 top fixed connection fixed stop 15 of base, fixed stop 15 one side fixed connection locating piece 16, No. two backup pads 19 of fixed connection on the box 1 of backup pad 2 top, sliding connection sliding sleeve 20 on No. two backup pads 19, No. two electric telescopic handle 26 of sliding sleeve 20 below fixed connection, No. two sealed soft section of thick bamboo 28 of electric telescopic handle 26 bottom fixed connection, fixed connection air pump 18 on the box 1 of sliding sleeve 20 one side, sliding sleeve 20 keeps away from the sealed trachea 24 of fixed connection on the box 1 of air pump 18 one side, set up drive arrangement 29 No. two on the box 1 of sliding sleeve 20 top.
A drive arrangement 3 includes a motor 11, a motor 11 fixed connection on box 1, fixed connection pillar 10 on the wagon box 1 of a motor 11 one side, pillar 10 upper end is rotated and is connected a gear 9, the transmission is connected between a drive shaft of a motor 11 and a gear 9, a gear 9 is connected with the 4 meshing transmissions of sliding support, No. two drive arrangement 29 includes No. two motors 22, No. two motors 22 in box 1 fixed connection, No. two motors 22's drive shaft rotates and connects No. two gears 21, and No. two gears 21 and sliding sleeve 20 meshing transmission are connected.
Be provided with trachea 25 between sealed soft section of thick bamboo 28 and the air pump 18, trachea 25 one side fixed connection air pump 18, No. 25 trachea keep away from the sealed soft section of thick bamboo 28 of air pump 25 one side fixed connection, No. 25 trachea, air pump 18 and sealed soft section of thick bamboo 28 intercommunication, be provided with No. two trachea 27 between sealed soft section of thick bamboo 28 and the sealed trachea 24, No. two sealed trachea 24 of trachea 27 one end fixed connection, No. two trachea 27 keep away from the sealed soft section of thick bamboo 28 of sealed trachea 24 one end fixed connection, No. two trachea 27, sealed trachea 24 and the sealed soft section of thick bamboo 28 intercommunication.
Example 2
Referring to fig. 1-3, the other contents of the present embodiment are the same as embodiment 1, except that: sealed trachea 24 is inside to be provided with plastics bobble 23, sealed trachea 24 passes box 1 and extends to the above, box 1 one side is equipped with opening 30, sliding support 4 is the inside L shape of lining up, No. one trachea 25 and No. two trachea 27 are scalable rubber hose.
In the implementation process of the invention, when the valve sealing device is used, the valve is placed at the top of the first electric telescopic rod 8 through the opening 30, so that the outlet at one side of the valve is matched with the sealing head 17 to realize the complete sealing effect, the first driving device 3 is started to drive the sliding support 4 to approach to the sliding base 7 in the middle, the fixed baffle plates 15 and the positioning blocks 16 at the two ends are clamped and fix the position of the valve, the second electric telescopic rod 26 is started to communicate the sealing soft cylinder 28 with the opening at the upper end of the valve and seal the valve with the outside, at the moment, the air pump 18 is started to supply air, the plastic small balls 23 in the sealing air pipe 24 are jacked up to the top of the sealing air pipe 24, at the moment, the air supply is stopped, the vertical position of the plastic small balls 23 is observed, if the valve is descended, the.
The invention has the advantages of rapid detection of sealing performance, high precision, no influence from the surrounding environment, wide application, easy observation and discovery of the air leakage valve, simple principle and convenient use.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. The sealing detection device for valve production comprises a box body (1) and is characterized in that a first support plate (2) is fixedly connected to the box body (1), a first spring (13) is arranged at each of two ends of the first support plate (2), one side of the first spring (13) is fixedly connected with the box body (1), a first sliding block (12) is fixedly connected to one side, away from the box body (1), of the first spring (13), a sliding base (7) is slidably connected to the first support plate (2), a first electric telescopic rod (8) is fixedly connected to the top of the sliding base (7), a sealing head (17) is fixedly connected to the top of the first electric telescopic rod (8), a sliding support (4) is slidably connected to each of the first support plates (2) at two sides of the sliding base (7), a second spring (5) is fixedly connected to one side of the sliding support (4), and a second sliding block (6) is fixedly connected to one side of the second spring (5, a first driving device (3) is arranged below the sliding support (4), the top of the sliding support (4) is fixedly connected with an installation base (14), the top of the installation base (14) is fixedly connected with a fixed baffle (15), one side of the fixed baffle (15) is fixedly connected with a positioning block (16), a second supporting plate (19) is fixedly connected on the box body (1) above the first supporting plate (2), a sliding sleeve (20) is slidably connected on the second supporting plate (19), a second electric telescopic rod (26) is fixedly connected below the sliding sleeve (20), a sealing soft cylinder (28) is fixedly connected at the bottom of the second electric telescopic rod (26), an air pump (18) is fixedly connected on the box body (1) at one side of the sliding sleeve (20), a sealed air pipe (24) is fixedly connected on the box body (1) at one side of the sliding sleeve (20) far away from the air pump (18), and a second driving device (29) is arranged on the box body (1) above the sliding sleeve (20).
2. The tightness detection device for valve production according to claim 1, characterized in that the first driving device (3) comprises a first motor (11), the first motor (11) is fixedly connected to the box body (1), a support column (10) is fixedly connected to the box body (1) on one side of the first motor (11), a first gear (9) is rotatably connected to the upper end of the support column (10), a driving shaft of the first motor (11) is in transmission connection with the first gear (9), and the first gear (9) is in meshing transmission connection with the sliding support (4).
3. The tightness detection device for valve production according to claim 1, wherein the second driving device (29) comprises a second motor (22), the second motor (22) is fixedly connected with the box body (1), a driving shaft of the second motor (22) is rotatably connected with a second gear (21), and the second gear (21) is in meshing transmission connection with the sliding sleeve (20).
4. The tightness detection device for valve production according to claim 1, wherein a first air pipe (25) is arranged between the soft sealing cylinder (28) and the air pump (18), one side of the first air pipe (25) is fixedly connected with the air pump (18), one side of the first air pipe (25) away from the air pump (18) is fixedly connected with the soft sealing cylinder (28), the first air pipe (25), the air pump (18) and the soft sealing cylinder (28) are communicated, a second air pipe (27) is arranged between the soft sealing cylinder (28) and the soft sealing cylinder (24), one end of the second air pipe (27) is fixedly connected with the soft sealing cylinder (24), one end of the second air pipe (27) away from the soft sealing cylinder (28) is fixedly connected with the soft sealing cylinder (28), and the second air pipe (27), the air sealing cylinder (24) and the soft sealing cylinder (28) are communicated.
5. The tightness detection device for valve production according to claim 4, wherein the sealing air pipe (24) is provided with a small plastic ball (23) inside, and the sealing air pipe (24) passes through the box body (1) and extends to the upper side.
6. The tightness detection device for valve production according to claim 1, wherein an opening (30) is provided at one side of the box body (1), and the sliding support (4) is L-shaped with a through-hole.
7. The tightness detection device for valve production according to claim 4 or 5, wherein the first air pipe (25) and the second air pipe (27) are both flexible rubber hoses.
CN201911267497.2A 2019-12-11 2019-12-11 Leakproofness detection device is used in valve production Pending CN110793734A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911267497.2A CN110793734A (en) 2019-12-11 2019-12-11 Leakproofness detection device is used in valve production

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911267497.2A CN110793734A (en) 2019-12-11 2019-12-11 Leakproofness detection device is used in valve production

Publications (1)

Publication Number Publication Date
CN110793734A true CN110793734A (en) 2020-02-14

Family

ID=69448166

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911267497.2A Pending CN110793734A (en) 2019-12-11 2019-12-11 Leakproofness detection device is used in valve production

Country Status (1)

Country Link
CN (1) CN110793734A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111929011A (en) * 2020-08-19 2020-11-13 无锡市新莱珂机械有限公司 Airtight seal tester and filter inlet mechanism and pipe fitting detection clamping mechanism thereof
CN111947851A (en) * 2020-08-18 2020-11-17 濮阳市恒信橡塑有限公司 Detection apparatus for high pressure seal circle
CN112229583A (en) * 2020-10-18 2021-01-15 安徽恩大阀门机械有限公司 Leakproofness detection device is used in valve production
CN112378599A (en) * 2020-10-20 2021-02-19 无锡旋航液压技术有限公司 High efficiency valve leakproofness detection device
CN113624479A (en) * 2021-08-19 2021-11-09 无锡锐泰节能系统科学有限公司 Intelligent temperature control valve detection device
CN114486101A (en) * 2022-02-14 2022-05-13 淄博市特种设备检验研究院 Pressure pipeline detection device convenient to operate and using method thereof
CN114705382A (en) * 2022-03-31 2022-07-05 无锡甘露阀门有限公司 Leakproofness detection device is used in valve production
CN117168707A (en) * 2023-11-02 2023-12-05 南通市红星空压机配件制造有限公司 Tightness detection device is used in valve production

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107843396A (en) * 2017-09-30 2018-03-27 和县科嘉阀门铸造有限公司 A kind of sealing valve device for detecting sealability
CN207888506U (en) * 2018-01-29 2018-09-21 江苏信息职业技术学院 A kind of automobile fixture detent mechanism
CN109551390A (en) * 2017-09-26 2019-04-02 上海德义机电有限公司 A kind of workpiece locating mechanism for four-way valve progress integration test
CN209207297U (en) * 2018-10-10 2019-08-06 张兴龙 A kind of machining teaching clamping device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109551390A (en) * 2017-09-26 2019-04-02 上海德义机电有限公司 A kind of workpiece locating mechanism for four-way valve progress integration test
CN107843396A (en) * 2017-09-30 2018-03-27 和县科嘉阀门铸造有限公司 A kind of sealing valve device for detecting sealability
CN207888506U (en) * 2018-01-29 2018-09-21 江苏信息职业技术学院 A kind of automobile fixture detent mechanism
CN209207297U (en) * 2018-10-10 2019-08-06 张兴龙 A kind of machining teaching clamping device

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111947851A (en) * 2020-08-18 2020-11-17 濮阳市恒信橡塑有限公司 Detection apparatus for high pressure seal circle
CN111929011A (en) * 2020-08-19 2020-11-13 无锡市新莱珂机械有限公司 Airtight seal tester and filter inlet mechanism and pipe fitting detection clamping mechanism thereof
CN112229583A (en) * 2020-10-18 2021-01-15 安徽恩大阀门机械有限公司 Leakproofness detection device is used in valve production
CN112378599A (en) * 2020-10-20 2021-02-19 无锡旋航液压技术有限公司 High efficiency valve leakproofness detection device
CN113624479A (en) * 2021-08-19 2021-11-09 无锡锐泰节能系统科学有限公司 Intelligent temperature control valve detection device
CN114486101A (en) * 2022-02-14 2022-05-13 淄博市特种设备检验研究院 Pressure pipeline detection device convenient to operate and using method thereof
CN114486101B (en) * 2022-02-14 2023-12-26 大唐长春热力有限责任公司 Pressure pipeline detection device convenient to operate and application method thereof
CN114705382A (en) * 2022-03-31 2022-07-05 无锡甘露阀门有限公司 Leakproofness detection device is used in valve production
CN114705382B (en) * 2022-03-31 2023-08-15 无锡甘露阀门有限公司 Tightness detection device is used in valve production
CN117168707A (en) * 2023-11-02 2023-12-05 南通市红星空压机配件制造有限公司 Tightness detection device is used in valve production
CN117168707B (en) * 2023-11-02 2024-04-05 南通市红星空压机配件制造有限公司 Tightness detection device is used in valve production

Similar Documents

Publication Publication Date Title
CN110793734A (en) Leakproofness detection device is used in valve production
CN204309354U (en) A kind of turning device with revolution Incision Machine's
CN204286705U (en) A kind of Drive axle housing sealing property detects machine
CN210464841U (en) Pipeline air tightness test device
CN210290905U (en) Valve cover structure of electromagnetic pulse valve
CN208887854U (en) A kind of vacuum test jig that leakproofness is strong
CN115824514B (en) Medical instrument gas tightness testing arrangement
CN210375526U (en) High-precision pressure gauge calibrating device
CN207280701U (en) A kind of online test device for air tightness
CN216012619U (en) Rotary oil seal air tightness detection tool
CN211784073U (en) Gate valve sealing tester
CN209559442U (en) A kind of leakage test plugging device
CN111113471A (en) Rotary adsorption structure
CN202388767U (en) Upper sealer
CN207287319U (en) A kind of laboratory vacuum mixing plant
CN212674366U (en) Air-conditioner one-way valve air tightness detection device with automatic detection function
CN219775121U (en) Press handle type quick connector
CN111896187A (en) Production equipment with detect air conditioner three-way valve gas tightness function
CN218956015U (en) Axle housing airtight experimental device
CN220288918U (en) Pneumatic rubber diaphragm leakage detection tool
CN220437701U (en) Sealing detection structure of automobile air conditioner pipeline
CN211347273U (en) Liquefied gas valve gas tightness detection device for liquefied steel cylinder
CN215931196U (en) Air tightness detection device for rubber hose
CN219391271U (en) Detection device for pressure pipeline leakage
CN220288868U (en) Water pressure detection device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20200214

RJ01 Rejection of invention patent application after publication