CN206292138U - A kind of air penetrability detecting system of waterproof vent valve - Google Patents

A kind of air penetrability detecting system of waterproof vent valve Download PDF

Info

Publication number
CN206292138U
CN206292138U CN201621331061.7U CN201621331061U CN206292138U CN 206292138 U CN206292138 U CN 206292138U CN 201621331061 U CN201621331061 U CN 201621331061U CN 206292138 U CN206292138 U CN 206292138U
Authority
CN
China
Prior art keywords
vent valve
waterproof vent
air
detecting system
air penetrability
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.)
Expired - Fee Related
Application number
CN201621331061.7U
Other languages
Chinese (zh)
Inventor
马金辉
刘小龙
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.)
Shenzhen Weixi Science & Technology Co Ltd
Original Assignee
Shenzhen Weixi Science & Technology 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 Shenzhen Weixi Science & Technology Co Ltd filed Critical Shenzhen Weixi Science & Technology Co Ltd
Priority to CN201621331061.7U priority Critical patent/CN206292138U/en
Application granted granted Critical
Publication of CN206292138U publication Critical patent/CN206292138U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Measuring Volume Flow (AREA)

Abstract

The utility model is related to waterproof vent valve field, the air penetrability detecting system of specifically related to a kind of waterproof vent valve, the air penetrability detecting system includes gas channel, flowmeter and waterproof vent valve installing mechanism, the flowmeter and waterproof vent valve installing mechanism are connected with gas channel, and the air-flow of the gas channel flows in flowmeter and waterproof and breathable valve system;Wherein, the waterproof vent valve is arranged in waterproof vent valve installing mechanism, in the presence of positive draft or negative airflow of the flowmeter in gas channel, the gas flow in detection gas channel.The utility model is measured by the gas flow of waterproof vent valve, the air penetrability for detecting waterproof vent valve by designing a kind of air penetrability detecting system of vent valve of waterproof by flowmeter;Meanwhile, waterproof vent valve installing mechanism simple structure is conveniently replaceable waterproof vent valve to be detected, realizes quickly and conveniently detecting effective air penetrability energy of waterproof vent valve.

Description

A kind of air penetrability detecting system of waterproof vent valve
Technical field
The utility model is related to waterproof vent valve field, and in particular to a kind of air penetrability detecting system of waterproof vent valve.
Background technology
Waterproof vent valve is combined together by forms such as the injection of Pu Wei eptfe films, ultra-sonic weldeds, forms sealing Component.Mainly there are the vent valves such as screw-type, forced, buckle-type, toggle formula, vent valve mainly there are two important indicators:1st, thoroughly Tolerance 2, degree of protection.
Waterproof vent valve effectively ventilative and water resistance is the key index as its performance of detection, particularly effectively thoroughly Gas, particularly applies in led outdoor lamps industry, automobile manufacture industry, photovoltaic industry.Specifically, waterproof vent valve Apply in above-mentioned industry, make product more durable.
But, effective air penetrability of waterproof vent valve how is quickly and conveniently detected, it is that those skilled in the art's emphasis grinds One of problem studied carefully.
Utility model content
The technical problems to be solved in the utility model is, for the drawbacks described above of prior art, there is provided a kind of waterproof is saturating The air penetrability detecting system of air valve, quickly and conveniently detects effective air penetrability energy of waterproof vent valve.
The utility model solves the technical scheme that its technical problem used:A kind of air penetrability of waterproof vent valve is provided Detecting system, the air penetrability for detecting waterproof vent valve, air penetrability detecting system includes gas channel, flowmeter and waterproof Vent valve installing mechanism, the flowmeter and waterproof vent valve installing mechanism are connected with gas channel, the air-flow of the gas channel Flowed in flowmeter and waterproof and breathable valve system;Wherein,
The waterproof vent valve is arranged in waterproof vent valve installing mechanism, positive draft of the flowmeter in gas channel Or in the presence of negative airflow, the gas flow in detection gas channel obtains the positive air penetrability or negative pressure of waterproof vent valve Air penetrability.
Wherein, preferred version is:The waterproof vent valve installing mechanism includes mounting body, and one end of the mounting body includes First installation port of waterproof vent valve is installed, its other end includes first breather pipe being connected with gas channel.
Wherein, preferred version is:The mounting body is PTFE pitmans, and the PTFE pitmans include being installed with first respectively The middle airway that port connects with the first breather pipe;The first installation port is screw thread notch, is set at the ora terminalis of the screw thread notch It is equipped with sealing ring;Snap joint is provided between first breather pipe and PTFE pitmans, first breather pipe is by quickly connecing Head is connected with PTFE pitmans.
Wherein, preferred version is:The waterproof vent valve installing mechanism includes gas-tight silo, and one is included on the shell of the gas-tight silo Second installation port of waterproof vent valve, and second breather pipe connected with gas channel are installed.
Wherein, preferred version is:The air penetrability detecting system also includes a negative pressure generator, and the negative pressure generator is arranged on Connected in gas channel and with the second breather pipe, second breather pipe forms negative airflow in the presence of negative pressure generator.
Wherein, preferred version is:The waterproof vent valve installing mechanism also includes connecting rod and compressed part, the one of the connecting rod End is connected with compressed part, and acts on movement in compressed part, and the other end of the connecting rod is resisted against waterproof vent valve, and in pressure Waterproof vent valve is pressed on the second installation port under the pressure effect in tight portion.
Wherein, preferred version is:The waterproof vent valve installing mechanism includes gas-tight silo, and one is included on the shell of the gas-tight silo Second installation port of waterproof vent valve is installed;
The gas channel includes malleation air-flow passage and negative-pressure air-flow passage, and the gas-tight silo includes connecting with malleation air-flow passage Logical positive airway pressure pipe, also including the negative pressure ventilation pipe with negative-pressure air-flow channel connection;Wherein, the positive airway pressure pipe and negative pressure are logical Tracheae includes a blocking device, and when positive airway pressure pipe is ventilated, the negative pressure ventilation pipe plug device that is blocked is blocked, and works as negative pressure ventilation When pipe is ventilated, the positive airway pressure pipe plug device that is blocked is blocked.
Wherein, preferred version is:The air penetrability detecting system also includes the precise throttling valve connected with gas channel, the essence Close choke valve is arranged on the front end of flowmeter, the gas flow of the gauge that become a mandarin for controlling stream.
Wherein, preferred version is:The air penetrability detecting system also includes a pressure gauge and split channel, the split channel Two ends are separately positioned on the two ends of flowmeter, and the pressure gauge is arranged on split channel, for detecting air penetrability detecting system Atmospheric pressure.
Wherein, preferred version is:The port of the gas channel is provided with discharge characteristic tester, for detecting that air penetrability is examined The air flow rate characteristic of examining system.
The beneficial effects of the utility model are that compared with prior art, the utility model is a kind of thoroughly by designing waterproof The air penetrability detecting system of air valve, is measured by the gas flow of waterproof vent valve, for detecting waterproof and breathable by flowmeter Effective rate of valve;Meanwhile, waterproof vent valve installing mechanism simple structure is conveniently replaceable waterproof vent valve to be detected, realizes Quickly and conveniently detect the air penetrability of waterproof vent valve.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is the structured flowchart of the utility model air penetrability detecting system;
Fig. 2 is the concrete structure block diagram of the utility model air penetrability detecting system;
Fig. 3 is the structured flowchart of the utility model negative pressure generator;
Fig. 4 is the structural representation of the utility model waterproof vent valve installing mechanism first embodiment
Fig. 5 is the structural representation of the utility model waterproof vent valve installing mechanism second embodiment;
Fig. 6 is the cross-sectional view of Fig. 5 gas-tight silos;
Fig. 7 is the configuration schematic diagram of Fig. 5.
Specific embodiment
In conjunction with accompanying drawing, preferred embodiment of the present utility model is elaborated.
Waterproof vent valve 2 is combined together by forms such as the injection of Pu Wei eptfe films, ultra-sonic weldeds, forms sealing Component.Mainly there are the vent valves such as screw-type, forced, buckle-type, toggle formula, waterproof vent valve 2 mainly there are two important fingers Mark:1st, Air permenbility 2, degree of protection.Particularly in Air permenbility performance.
As depicted in figs. 1 and 2, the utility model provides a kind of being preferable to carry out for air penetrability detecting system of waterproof vent valve Example.
A kind of air penetrability detecting system of waterproof vent valve 2, the air penetrability for detecting waterproof vent valve 2, the air penetrability Detecting system includes gas channel, flowmeter 1 and waterproof vent valve installing mechanism, the flowmeter 1 and waterproof vent valve fitting machine Structure is connected with gas channel, and the air-flow of the gas channel flows in flowmeter 1 and the mechanism of waterproof vent valve 2;Wherein,
The waterproof vent valve 2 is arranged in waterproof vent valve installing mechanism, positive gas of the flowmeter 1 in gas channel In the presence of stream or negative airflow, the gas flow in detection gas channel obtains the positive air penetrability of waterproof vent valve 2 or negative Pressure air penetrability.
Specifically, installed or manually installed by machine automatization, each waterproof vent valve 2 to be detected is pressed into identical direction It is installed in the installation of waterproof vent valve 2 port, flows through the gas flow of flowmeter 1 by gas afterwards, measurement is each to be detected is prevented The Air permenbility performance of water vent valve 2.Wherein, can pre-set a rate range, different waterproof vent valve 2 to be detected it is right The gas flow of flowmeter 1 answered, its corresponding different grade is such as unqualified, qualified, excellent.
Further, the air penetrability detecting system also includes the precise throttling valve 5 connected with gas channel, precision throttling Valve 5 is arranged on the front end of flowmeter 1, the gas flow of the gauge 1 that become a mandarin for controlling stream.Choke valve is by changing throttling section Or chock length is to control the valve of fluid flow, choke valve and check valve parallel connection are then combined into one-way throttle valve, throttled Valve does not have flow negative-feedback function, it is impossible to which speed of the compensation as caused by load change is unstable, is typically only used for load change Less or to the less demanding occasion of speed stability.Meanwhile, using the low cost of precise throttling valve 5, construction is relatively simple, is easy to system Make and repair.
Further, the air penetrability detecting system also includes a pressure gauge 8 and split channel, the two ends point of the split channel The two ends of flowmeter 1 are not arranged on, the pressure gauge 8 is arranged on split channel, the air pressure for detecting air penetrability detecting system Pressure, the atmospheric pressure at the specific two ends of detection stream gauge 1.
Wherein, the two ends of flowmeter 1 are respectively arranged with a tap 6, and a split channel is formed by tap 6, Pressure gauge 8 is separately positioned on tap 6.Preferably, tap 6 is preferably three joints.
Preferably, the precise throttling valve 5 is arranged on the front end of tap 6.
Further, a pressure regulator valve 4 is set between the gas channel and precise throttling valve 5, and the pressure regulator valve 4 adjusts its two ends Draught head.Pressure gauge 8 is used cooperatively with pressure regulator valve 4, for monitor the pressure value set during read test whether meet will Ask.
Further, the port of the gas channel is provided with discharge characteristic tester, for detecting air penetrability detecting system Air flow rate characteristic.Preferably XT19 series discharge characteristic testers, XT19 series discharge characteristic testers can be to various Part carries out the test of discharge characteristic, as long as the product for having discharge characteristic test request to every profession and trade is tested (such as:Stream Quantity sensor, check valve, vent valve, fan, water pump, air pump, vavuum pump, fan, pipeline etc.).Tested media can be various Fluid (Oil, Water, Gas), or even including debris, soil, mud etc..
Wherein, the function of waterproof vent valve 2 is able to two-way ventilative, remains that cabinet of communication equipment is inside and outside and flattens Weighing apparatus, malleation is formed when pressure is more than ambient pressure in cabinet equipment, and this is that valve needs outwards exhaust, otherwise is formed in equipment Then needed during negative pressure by vent valve to air pressure is supplemented in cabinet equipment, weighed with reaching inside and outside pressing.
As shown in Figures 3 and 4, the utility model provides a kind of preferred embodiment of waterproof vent valve installing mechanism.
The waterproof vent valve installing mechanism includes mounting body 11, and one end of the mounting body 11 includes installing waterproof and breathable First installation port 12 of valve 2, its other end includes first breather pipe 13 being connected with gas channel.
Wherein, the mounting body 11 be PTFE pitmans, the PTFE pitmans include respectively with first install port 12 and The middle airway 111 of the connection of the first breather pipe 13;The first installation port 12 is screw thread notch, is set at the ora terminalis of the screw thread notch It is equipped with sealing ring 14;Snap joint 15 is provided between first breather pipe 13 and PTFE pitmans, first breather pipe 13 leads to Snap joint 15 is crossed to be connected with PTFE pitmans.
Further right, the air penetrability detecting system also includes a negative pressure generator 7, and the negative pressure generator 7 is arranged on air-flow Connected in passage and with the first breather pipe 13, first breather pipe 13 forms negative airflow in the presence of negative pressure generator.Ginseng Fig. 3 is examined, when using negative pressure generator 7, air-flow is flowed back to by waterproof successively in the presence of negative pressure generator 7 from outside Vent valve 2, flowmeter 1.
As shown in Fig. 3, Fig. 5, Fig. 6 and Fig. 7, the utility model provides a kind of preferable implementation of waterproof vent valve installing mechanism Example.
The waterproof vent valve installing mechanism includes gas-tight silo 21, includes that one installs waterproof and breathable on the shell of the gas-tight silo 21 Second installation port 2112 of valve 2, and second breather pipe connected with gas channel.
Wherein, the waterproof vent valve installing mechanism also include connecting rod 24 and compressed part 23, one end of the connecting rod 24 with Compressed part 23 is connected, and acts on movement in compressed part 23, and the other end of the connecting rod 24 is resisted against waterproof vent valve 2, and Waterproof vent valve 2 is pressed at the second installation port 2112 under the pressure effect of compressed part 23.
Further right, the air penetrability detecting system also includes a negative pressure generator 7, and the negative pressure generator 7 is arranged on air-flow Connected in passage and with the second breather pipe, second breather pipe forms negative airflow in the presence of negative pressure generator.With reference to figure 3, when using negative pressure generator 7, air-flow is flowed back to by waterproof and breathable successively in the presence of negative pressure generator 7 from outside Valve 2, flowmeter 1.
Preferably, the waterproof vent valve installing mechanism includes gas-tight silo 21, includes that one installs on the shell of the gas-tight silo 21 Second installation port 2112 of waterproof vent valve 2;The gas channel includes malleation air-flow passage and negative-pressure air-flow passage, the sealing Storehouse 21 includes the positive airway pressure pipe 221 with malleation air-flow channel connection, also including the negative pressure ventilation with negative-pressure air-flow channel connection Pipe 222;Wherein, the positive airway pressure pipe 221 and negative pressure ventilation pipe 222 include a blocking device (not shown), work as positive airway pressure When pipe 221 is ventilated, the negative pressure ventilation pipe 222 plug device that is blocked is blocked, when negative pressure ventilation pipe 222 is ventilated, the positive airway pressure pipe 221 plug devices that are blocked are blocked.
Further, waterproof vent valve installing mechanism also includes support bar 26 and support platform 25, and the support platform 25 is led to Cross support bar 26 to be arranged on gas-tight silo 21, be specifically located at the one side of the second installation port 2112, connecting rod 24 and compression Portion 23 is arranged in support platform 25.
Specifically, and Fig. 6 is referred to, at compressed part 23, compressed part 23 includes compressed part platform 234, connecting plate 233, turns Fixed handle 232 and compressor arm 231, the rotation handle 232 and compressor arm 231 against, connecting plate 233 respectively with rotate handle 232 Connected with compressed part platform 234, rotate handle 232 and be rotatably arranged on connecting plate 233, rotate handle 232 around connecting plate 233 During vertical rotation, compressor arm 231 is driven to be vertically moved relative to compressed part platform 234;At connecting rod 24, connecting rod 24 includes Upper boom 241, the lower beam 243 against waterproof vent valve 2 and the company of fixed upper boom 241 and lower beam 243 being connected with compressor arm 231 Socket part 242;At support platform 25, support platform 25 include for support bar 26 coordinate support rod through-hole 251 and with pressure The compression rod through-hole 252 that tight bar 231 coordinates, the compressor arm 231 is through compressing rod through-hole 252 and vertical relative to support platform 25 It is mobile.
With reference to Fig. 5 and Fig. 6, gas-tight silo 21 includes upper storehouse 211, lower storehouse 213 and O-ring seal 212, upper storehouse 211 and lower storehouse A sealing space is constituted between 213, the second installation port 2112 and the support bar coordinated with support bar 26 are provided with upper storehouse 211 Through hole 2111, be provided with lower storehouse 213 with positive airway pressure pipe 221 coordinate positive airway pressure pipe through-hole 2131 and with negative pressure ventilation pipe The 222 negative pressure ventilation pipe through-holes 2132 for coordinating;Wherein, it is additionally provided with sealing ring 2113 on the second installation port 2112.
As described above, only the utility model most preferred embodiment is not intended to limit scope of the present utility model, All equivalent change or modifications made according to present utility model application the scope of the claims, are all the utility model and are covered.

Claims (10)

1. a kind of air penetrability detecting system of waterproof vent valve, the air penetrability for detecting waterproof vent valve, it is characterised in that:Should Air penetrability detecting system includes gas channel, flowmeter and waterproof vent valve installing mechanism, and the flowmeter and waterproof vent valve are pacified Mounting mechanism is connected with gas channel, and the air-flow of the gas channel flows in flowmeter and waterproof and breathable valve system;Wherein,
The waterproof vent valve is arranged in waterproof vent valve installing mechanism, positive draft or negative of the flowmeter in gas channel In the presence of air-flow, the gas flow in detection gas channel, the positive air penetrability or negative pressure for obtaining waterproof vent valve is ventilative Rate.
2. air penetrability detecting system according to claim 1, it is characterised in that:The waterproof vent valve installing mechanism includes peace Dress main body, one end of the mounting body includes installing the first installation port of waterproof vent valve, and its other end includes one and air-flow Channel attached first breather pipe.
3. air penetrability detecting system according to claim 2, it is characterised in that:The mounting body is PTFE pitmans, should PTFE pitmans include the middle airway for being connected with the first installation port and the first breather pipe respectively;The first installation port is spiral shell Groove mouthful, sealing ring is provided with the ora terminalis of the screw thread notch;It is provided between first breather pipe and PTFE pitmans quick Joint, first breather pipe is connected by snap joint with PTFE pitmans.
4. air penetrability detecting system according to claim 1, it is characterised in that:The waterproof vent valve installing mechanism includes close Feng Cang, includes a second installation port for installing waterproof vent valve on the shell of the gas-tight silo, and one connects with gas channel The second breather pipe.
5. air penetrability detecting system according to claim 4, it is characterised in that:The air penetrability detecting system also includes that one is negative Pressure generator, the negative pressure generator is arranged in gas channel and is connected with the second breather pipe, and second breather pipe is sent out in negative pressure Negative airflow is formed in the presence of raw device.
6. air penetrability detecting system according to claim 4, it is characterised in that:The waterproof vent valve installing mechanism also includes Connecting rod and compressed part, one end of the connecting rod are connected with compressed part, and act on movement in compressed part, the connecting rod it is another One end is resisted against waterproof vent valve, and waterproof vent valve is pressed on into the second installation port under the pressure effect of compressed part.
7. air penetrability detecting system according to claim 1, it is characterised in that:The waterproof vent valve installing mechanism includes close Feng Cang, includes a second installation port for installing waterproof vent valve on the shell of the gas-tight silo;
The gas channel includes malleation air-flow passage and negative-pressure air-flow passage, and the gas-tight silo includes and malleation air-flow channel connection Positive airway pressure pipe, also including the negative pressure ventilation pipe with negative-pressure air-flow channel connection;Wherein, the positive airway pressure pipe and negative pressure ventilation pipe Include a blocking device, when positive airway pressure pipe ventilate, the negative pressure ventilation pipe plug device that is blocked is blocked, when negative pressure ventilation pipe leads to During gas, the positive airway pressure pipe plug device that is blocked is blocked.
8. air penetrability detecting system according to claim 1, it is characterised in that:The air penetrability detecting system also includes and gas The precise throttling valve of circulation road connection, the precise throttling valve is arranged on the front end of flowmeter, the gas of the gauge that become a mandarin for controlling stream Body flow.
9. the air penetrability detecting system according to claim 1 or 8, it is characterised in that:The air penetrability detecting system also includes One pressure gauge and split channel, the two ends of the split channel are separately positioned on the two ends of flowmeter, and the pressure gauge is arranged on shunting On passage, the atmospheric pressure for detecting air penetrability detecting system.
10. air penetrability detecting system according to claim 1, it is characterised in that:The port of the gas channel is provided with stream Flow characteristic tester, the air flow rate characteristic for detecting air penetrability detecting system.
CN201621331061.7U 2016-12-06 2016-12-06 A kind of air penetrability detecting system of waterproof vent valve Expired - Fee Related CN206292138U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201621331061.7U CN206292138U (en) 2016-12-06 2016-12-06 A kind of air penetrability detecting system of waterproof vent valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201621331061.7U CN206292138U (en) 2016-12-06 2016-12-06 A kind of air penetrability detecting system of waterproof vent valve

Publications (1)

Publication Number Publication Date
CN206292138U true CN206292138U (en) 2017-06-30

Family

ID=59098022

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201621331061.7U Expired - Fee Related CN206292138U (en) 2016-12-06 2016-12-06 A kind of air penetrability detecting system of waterproof vent valve

Country Status (1)

Country Link
CN (1) CN206292138U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112284646A (en) * 2020-11-25 2021-01-29 深圳市法拉第电驱动有限公司 Method for testing air tightness of motor controller

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112284646A (en) * 2020-11-25 2021-01-29 深圳市法拉第电驱动有限公司 Method for testing air tightness of motor controller

Similar Documents

Publication Publication Date Title
CN201607311U (en) Air pipe air leakage testing device
CN202471374U (en) Multifunctional airtightness detection apparatus
CN105021262B (en) The adjustable gas flow scaling method of temperature, pressure
CN106768723A (en) Air flue check valve flow and device for detecting sealability
CN100585359C (en) Gas pressure regulator test device
CN207231786U (en) A kind of air-valve comprehensive performance test device
CN104535455A (en) Gas seepage experiment device and method for dynamically monitoring pore pressure distribution and changes
CN104502161B (en) Dust sampler calibrating installation
CN102636328B (en) Simulation test method of ventilation on-way frictional resistance coefficient of curved tunnel
CN206292138U (en) A kind of air penetrability detecting system of waterproof vent valve
CN206058014U (en) A kind of humiture self-checking device of emanometer radon gas sampling
CN114563492A (en) Gas sensor inspection device for pipeline and test method
CN201697751U (en) Vacuum gauge calibrating device
CN205175682U (en) Gas cut -off valve debugs frock
CN208934984U (en) A kind of exerciser exhaust system control air quantity
CN206192602U (en) Volume of letting out missed measure equipment
CN207114207U (en) A kind of adjustable constant-pressure load testing device
CN205785363U (en) Ventilating system scene air leakage rate check instrument
CN207248835U (en) Multifunctional gas alarm calibrating installation
CN208330695U (en) A kind of pneumatics apparatus test device for simulating applying working condition
CN206960315U (en) A kind of adjusting means on sponge air penetrability detector
CN206960316U (en) A kind of sponge air penetrability detector
CN107655788B (en) It is a kind of for measuring the device of glass substrate air-flotation system choke block Restriction Parameters
CN206206135U (en) Sand liquid pump detection means on diamond fretsaw
CN214332344U (en) Pipeline air leakage detector

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20170630

Termination date: 20201206

CF01 Termination of patent right due to non-payment of annual fee