[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

CN109142645A - A kind of safe and reliable gas monitoring instrument quality detection apparatus - Google Patents

A kind of safe and reliable gas monitoring instrument quality detection apparatus Download PDF

Info

Publication number
CN109142645A
CN109142645A CN201811237206.0A CN201811237206A CN109142645A CN 109142645 A CN109142645 A CN 109142645A CN 201811237206 A CN201811237206 A CN 201811237206A CN 109142645 A CN109142645 A CN 109142645A
Authority
CN
China
Prior art keywords
piston plate
sealing partition
monitoring instrument
gas monitoring
stomata
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
CN201811237206.0A
Other languages
Chinese (zh)
Inventor
胡飞
周扬
巢柏崇
王大军
陈延
周青奎
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.)
Anhui Ze Zhong Safety Science company limited
Beijing Chen'an Science and Technology Co., Ltd.
Hefei Institute for Public Safety Research Tsinghua University
Original Assignee
Anhui Chen Control Intelligent Technology Co Ltd
Hefei Institute for Public Safety Research Tsinghua University
Beijing Global Safety 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 Anhui Chen Control Intelligent Technology Co Ltd, Hefei Institute for Public Safety Research Tsinghua University, Beijing Global Safety Technology Co Ltd filed Critical Anhui Chen Control Intelligent Technology Co Ltd
Priority to CN201811237206.0A priority Critical patent/CN109142645A/en
Publication of CN109142645A publication Critical patent/CN109142645A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0004Gaseous mixtures, e.g. polluted air
    • G01N33/0009General constructional details of gas analysers, e.g. portable test equipment
    • G01N33/007Arrangements to check the analyser

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Food Science & Technology (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Examining Or Testing Airtightness (AREA)

Abstract

The invention discloses a kind of safe and reliable gas monitoring instrument quality detection apparatus, it include: the internal monitor station with clip cavity and the gas supply mechanism for conveying gas into clip cavity, monitor station is equipped with air channel and detector, in which: sealing partition and piston plate are equipped with inside air channel;It seals partition and is equipped with stomata;Piston plate is equipped with slot, and the guide rod through stomata is equipped on piston plate, and the outer diameter of guide rod is less than the internal diameter of stomata, and guide rod is equipped with plunger far from one end of piston plate;Piston plate has first position state, second position state and the third place state, and when piston plate is in first position state, and plunger blocks stomatal limiting value;When piston plate is located at second position state, there is spacing between plunger and sealing partition;When piston plate is in the third place state, piston plate and sealing partition recline and block to stomatal limiting value.The present invention improves the safety of detection it is possible to prevente effectively from the problem of gas leakage.

Description

A kind of safe and reliable gas monitoring instrument quality detection apparatus
Technical field
The present invention relates to gas monitoring instrument detection technique fields, more particularly to a kind of safe and reliable gas monitoring instrument quality Detection device.
Background technique
Gas monitoring instrument be used for imflammable gas detection, early warning explosion, in terms of be it is indispensable, Gas monitoring instrument is very widely used, but gas monitoring instrument can work and can work normally then from close it is important, such as When the data inaccuracy that gas monitoring instrument detects, it may cause and reported by mistake when fire or hidden peril of explosion is not present, led It causes to stop work, improper reply is caused, to cause damages, it is also possible to when leading to carry out fire alarm, due to the data of transmission It is wrong, and lose most when reaction time, cause more uncertain loss, therefore, the precision and stabilization of gas monitoring instrument Property, most important for early warning explosion, fire alarm, existing gas monitoring instrument also will do it one after the completion of production and processing A little quality testings, to detect whether its performance indexes meets the requirements.But existing quality detection apparatus is when detecting operation, Combustion gas for detection is easy leakage, and there are some potential safety problemss, it would be highly desirable to improve.
Summary of the invention
Technology based on the above background, the present invention propose a kind of safe and reliable gas monitoring instrument quality Detection device.
The invention proposes a kind of safe and reliable gas monitoring instrument quality detection apparatus, comprising: inside has clip cavity Monitor station and gas supply mechanism for conveying from gas to clip cavity, the upper table surface of monitor station are equipped with the ventilation being connected to its clip cavity Slot and positioned at air channel side be equipped with the detector for obtaining gas monitoring instrument performance parameter to be measured, in which:
Equipped with the sealing partition for being divided into upper and lower channel inside air channel and positioned at its both ends between, in air channel Portion and it is located at sealing partition and is equipped with close to the side of its port and seal assembly with it and can slidably reciprocate to sealing partition direction Piston plate;
Partition is sealed equipped with stomata up and down;
Piston plate be equipped with up and down and for gas monitoring instrument to be measured insertion slot, piston plate close to sealing every The side of plate is equipped with guide rod, and the outer diameter of guide rod is less than the internal diameter of stomata, and guide rod runs through far from one end of piston plate Stomata extends to the other side of sealing partition, and guide rod is equipped with plunger far from one end of piston plate;
Piston plate has first position state, second position state and the third place state, and when piston plate is in first When location status, plunger and sealing partition against and to stomatal limiting value block;When piston plate is located at second position state, plunger There is spacing between sealing partition;When piston plate is in the third place state, piston plate and sealing partition recline and to gas Hole, which is formed, to be blocked.
Preferably, sealing partition is equipped with to piston plate direction protrusion close to the side of piston plate and can protrude into slot underwear pair Slot forms the plug blocked, and when piston plate is in the third place state, and plug is protruded into slot and formed to slot and sealed It is stifled.
Preferably, piston plate is equipped with the elastic layer being made by elastic material close to the side side of sealing partition.
Preferably, the material of elastic layer is soft rubber or silica gel.
Preferably, piston plate is equipped with far from the side of sealing partition for driving piston plate in first position state, second The driving mechanism arbitrarily switched between location status and the third place state.
Preferably, driving mechanism includes compressed spring, push rod and driving unit;Compressed spring be located at piston plate and sealing every Between plate, and work as the compressed spring in its natural state, which is in first position state;It is separate that push rod is located at piston plate The side of partition is sealed, driving unit is connect to be used for driving push rod to piston plate direction stretching motion with push rod.
Preferably, sealing partition is equipped with the duct slot extended in the same direction with guide rod, and one end of compressed spring is located at In the slot of duct.
In the present invention, by the way that sealing partition and piston plate are arranged in air channel, stomata is set on sealing partition, close Insulate and slot and guide rod be set on plate, and the outer diameter of guide rod is made to be less than the internal diameter of stomata, guide rod far from piston plate one End extends to the other side of sealing partition through stomata, and guide rod is equipped with plunger far from one end of piston plate, has piston plate There are first position state, second position state and the third place state, makes piston plate in first position state, plunger and sealing Partition is blocked against and to stomatal limiting value so that in this state, the gas in clip cavity can not be entered by stomata sealing every Between plate and piston plate;Make piston plate that there is spacing between plunger and sealing partition in second position state, so that the shape Under state, stomata is in the open state, and the gas in clip cavity can be entered by stomata between sealing partition and piston plate;Make piston Plate in the third place state piston plate and sealing partition recline and to stomatal limiting value block so that piston plate and sealing partition it Between gas flowed back into clip cavity under the extruding of piston plate so that the detection device is when detecting operation, by work The control of seben position improves the safety of detection it is possible to prevente effectively from the problem of gas leakage.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the safe and reliable gas monitoring instrument quality detection apparatus of one kind proposed by the present invention;
Fig. 2 is the enlarged drawing in Fig. 1 at C.
Specific embodiment
In the following, technical solution of the present invention is described in detail by specific embodiment.
As shown in Figs. 1-2, Fig. 1 is the knot of the safe and reliable gas monitoring instrument quality detection apparatus of one kind proposed by the present invention Structure schematic diagram;Fig. 2 is the enlarged drawing in Fig. 1 at C.
Referring to Fig.1-2, the safe and reliable gas monitoring instrument quality detection apparatus of one kind that the embodiment of the present invention proposes, packet Include: inside has the monitor station 1 of clip cavity and the gas supply mechanism 2 for conveying gas into clip cavity, sets on the upper table surface of monitor station 1 There is the air channel being connected to its clip cavity and is equipped with positioned at air channel side for obtaining gas monitoring instrument performance parameter to be measured Detector 3, in which:
Equipped with the sealing partition 4 for being divided into upper and lower channel inside air channel and positioned at its both ends between, in air channel Portion and be located at sealing partition 4 close to its port side be equipped with its seal assembly and can to sealing 4 direction of partition slidably reciprocate Piston plate 5.Partition 4 is sealed equipped with stomata a up and down;Piston plate 5 is equipped with up and down and for combustion to be measured The slot b of gas monitor insertion, piston plate 5 are equipped with guide rod 10, and the outer diameter of guide rod 10 close to the side of sealing partition 4 Less than the internal diameter of stomata a, the one end of guide rod 10 far from piston plate 5 extends to the other side of sealing partition 4 through stomata a, leads Plunger 6 is installed far from one end of piston plate 5 to bar 10.Piston plate 5 has first position state, second position state and third Location status, and when piston plate 5 is in first position state, plunger 6 and sealing partition 4 are formed against and to stomata a and are blocked; When piston plate 5 is located at second position state, there is spacing between plunger 6 and sealing partition 4;When piston plate 5 is in third position When setting state, piston plate 5 and sealing partition 4 recline and are formed to stomata a and blocked.
The present invention makes piston plate 5 enter first position state in advance when detecting to gas monitoring instrument, then will be to It surveys in gas monitoring instrument insertion slot b, and connects the gas monitoring instrument to be measured with corresponding detector 3, make the gas monitoring Instrument is in the open state;Then, so that piston plate 5 is entered second position state, open stomata a, enter the gas in clip cavity It is contacted between sealing partition 4 and piston plate 5 with the gas monitoring instrument in slot b, at this point, detector 3 starts to obtain combustion gas prison The performance parameter of instrument is surveyed to judge whether the gas monitoring instrument is qualified;When testing is complete, make piston plate 5 to sealing 4 side of partition To mobile to enter the third place state, thus by the gas back pressure to clip cavity between piston plate 5 and sealing partition 4 and by gas Hole closing;The gas monitoring instrument that test is completed is removed later.
From the foregoing, it will be observed that the present invention by the way that sealing partition 4 and piston plate 5 are arranged in air channel, is arranged on sealing partition 4 The internal diameter that stomata a is arranged slot b and guide rod 10 on sealing partition 4, and the outer diameter of guide rod 10 is made to be less than stomata a, guiding Bar 10 far from piston plate 5 one end through stomata a extend to sealing partition 4 the other side, guide rod 10 far from piston plate 5 one End is equipped with plunger 6, so that piston plate 5 is had first position state, second position state and the third place state, makes piston plate 5 In first position when state, plunger 6 and sealing partition 4 are formed against and to stomata a and are blocked, so that in this state, clip cavity Interior gas can not be entered by stomata a between sealing partition 4 and piston plate 5;Make the plunger in second position state of piston plate 5 There is spacing between 6 and sealing partition 4, so that stomata a is in the open state under the state, the gas in clip cavity can lead to Air passing hole a enters between sealing partition 4 and piston plate 5;Make piston plate 5 piston plate 5 and sealing partition 4 in the third place state It reclines and stomata a is formed and block, so that the gas between piston plate 5 and sealing partition 4 flows back under the extruding of piston plate 5 In clip cavity, so that the detection device is when detecting operation, by the control to 5 position of piston plate it is possible to prevente effectively from combustion gas The problem of leakage, improves the safety of detection.
In addition, sealing partition 4 is equipped with to 5 direction of piston plate protrusion and can stretch close to the side of piston plate 5 in the present embodiment Enter slot b underwear and form the plug 41 blocked to slot b, and when piston plate 5 is in the third place state, plug 41 protrudes into slotting In slot b and slot b is formed and is blocked, when piston plate 5 to sealing 4 direction of partition it is mobile to enter the third place state when, plug 41 gradually protrude into block while ejecting workpiece in slot b to slot b in slot b, to further increase anti-leak Ability.
In the present embodiment, piston plate 5 is equipped with the elasticity being made by elastic material close to the side side of sealing partition 4 Layer with the exclusion effect using the extrusion deformation enhancing of elastic layer to gas, while also enhancing the sealing effect to stomata a.
The material of elastic layer in the present embodiment is soft rubber or silica gel.
In the present embodiment, piston plate 5 is equipped with far from the side of sealing partition 4 for driving piston plate 5 in first position shape The driving mechanism arbitrarily switched between state, second position state and the third place state, driving mechanism include compressed spring 7, push away Bar 8 and driving unit 9;Compressed spring 7 is located between piston plate 5 and sealing partition 4, and when the compressed spring 7 is in nature Under, which is in first position state;Push rod 8 be located at piston plate 5 far from sealing partition 4 side, driving unit 9 with The connection of push rod 8 is to be used for driving push rod 8 to 5 direction stretching motion of piston plate.
In the present embodiment, sealing partition 4 is equipped with the duct slot extended in the same direction with guide rod 10, compressed spring 7 One end is located in the slot of duct;The setting of duct slot can compressed spring 7 be when in a compressed state accommodates to it at this, to keep away Exempt from compressed spring 7 to cause to be bonded defective tightness between piston plate 5 and sealing partition 4 when piston plate 5 enters the third place state.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto, Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.

Claims (7)

1. a kind of safe and reliable gas monitoring instrument quality detection apparatus characterized by comprising inside has the detection of clip cavity Platform (1) and gas supply mechanism (2) for conveying from gas to clip cavity, the upper table surface of monitor station (1) are equipped with and are connected to its clip cavity Air channel and positioned at air channel side be equipped with the detector (3) for obtaining gas monitoring instrument performance parameter to be measured, in which:
Equipped with the sealing partition (4) for being divided into upper and lower channel inside air channel and positioned at its both ends between, inside air channel And it is located at sealing partition (4) and assembles and can be slided back and forth to sealing partition (4) direction equipped with being sealed with it close to the side of its port Dynamic piston plate (5);
Partition (4) are sealed equipped with stomata (a) up and down;
Piston plate (5) is equipped with up and down and for the slot (b) of gas monitoring instrument to be measured insertion, and piston plate (5) is close The side of sealing partition (4) is equipped with guide rod (10), and the outer diameter of guide rod (10) is less than the internal diameter of stomata (a), guide rod (10) one end far from piston plate (5) extends to the other side of sealing partition (4) through stomata (a), and guide rod (10) is far from living One end of seben (5) is equipped with plunger (6);
Piston plate (5) has first position state, second position state and the third place state, and when piston plate (5) are in the When one location status, plunger (6) and sealing partition (4) are formed against and to stomata (a) and are blocked;When piston plate (5) are located at second When location status, there is spacing between plunger (6) and sealing partition (4);It is living when piston plate (5) is in the third place state Seben (5) and sealing partition (4) recline and are formed to stomata (a) and blocked.
2. safe and reliable gas monitoring instrument quality detection apparatus according to claim 1, which is characterized in that sealing partition (4) side close to piston plate (5) is equipped with to piston plate (5) direction protrusion and can protrude into slot (b) underwear to slot (b) formation The plug (41) of closure, and when piston plate (5) is in the third place state, plug (41) protrudes into slot (b) and to slot (b) it is formed and is blocked.
3. safe and reliable gas monitoring instrument quality detection apparatus according to claim 1, which is characterized in that piston plate (5) elastic layer being made by elastic material is equipped with close to the side side of sealing partition (4).
4. safe and reliable gas monitoring instrument quality detection apparatus according to claim 3, which is characterized in that elastic layer Material is soft rubber or silica gel.
5. gas monitoring instrument quality detection apparatus safe and reliable described in any one of -4, feature exist according to claim 1 In piston plate (5) is equipped with far from the side of sealing partition (4) for driving piston plate (5) in first position state, the second position The driving mechanism arbitrarily switched between state and the third place state.
6. safe and reliable gas monitoring instrument quality detection apparatus according to claim 5, which is characterized in that driving mechanism Including compressed spring (7), push rod (8) and driving unit (9);Compressed spring (7) be located at piston plate (5) and sealing partition (4) it Between, and work as the compressed spring (7) in its natural state, which is in first position state;Push rod (8) is located at piston Side of the plate (5) far from sealing partition (4), driving unit (9) are connect to be used for driving push rod (8) to piston plate with push rod (8) (5) direction stretching motion.
7. safe and reliable gas monitoring instrument quality detection apparatus according to claim 6, which is characterized in that sealing partition (4) it is equipped with the duct slot extended in the same direction with guide rod (10), one end of compressed spring (7) is located in the slot of duct.
CN201811237206.0A 2018-10-23 2018-10-23 A kind of safe and reliable gas monitoring instrument quality detection apparatus Pending CN109142645A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811237206.0A CN109142645A (en) 2018-10-23 2018-10-23 A kind of safe and reliable gas monitoring instrument quality detection apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811237206.0A CN109142645A (en) 2018-10-23 2018-10-23 A kind of safe and reliable gas monitoring instrument quality detection apparatus

Publications (1)

Publication Number Publication Date
CN109142645A true CN109142645A (en) 2019-01-04

Family

ID=64809099

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811237206.0A Pending CN109142645A (en) 2018-10-23 2018-10-23 A kind of safe and reliable gas monitoring instrument quality detection apparatus

Country Status (1)

Country Link
CN (1) CN109142645A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112270817A (en) * 2020-10-28 2021-01-26 广州研测安全技术有限公司 Combustible gas alarm calibrating device

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006118955A (en) * 2004-10-21 2006-05-11 Tokyo Gas Co Ltd Test hole constitutional member and test hole structure of gas pipe
CN104483353A (en) * 2014-12-16 2015-04-01 昆山圣赛诺尔传感技术有限公司 Multichannel oxygen sensor testing device and multichannel oxygen sensor testing method
CN106015148A (en) * 2016-08-04 2016-10-12 王才丰 Positive-and-negative pressure driving device for mounting tool of cold shrinking cable sealing cap
CN206701753U (en) * 2017-05-05 2017-12-05 天津市光明印务有限公司 Printed matter skips leaf multipage eliminating system
CN107606043A (en) * 2017-11-19 2018-01-19 东莞市松研智达工业设计有限公司 A kind of shock proof automobile energy storage damper of fourth gear
CN207570840U (en) * 2017-12-25 2018-07-03 马忆琳 A kind of inner pressed sewage sampler for environmental monitoring
CN209069895U (en) * 2018-10-23 2019-07-05 安徽辰控智能科技有限公司 A kind of safe and reliable gas monitoring instrument quality detection apparatus

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006118955A (en) * 2004-10-21 2006-05-11 Tokyo Gas Co Ltd Test hole constitutional member and test hole structure of gas pipe
CN104483353A (en) * 2014-12-16 2015-04-01 昆山圣赛诺尔传感技术有限公司 Multichannel oxygen sensor testing device and multichannel oxygen sensor testing method
CN106015148A (en) * 2016-08-04 2016-10-12 王才丰 Positive-and-negative pressure driving device for mounting tool of cold shrinking cable sealing cap
CN206701753U (en) * 2017-05-05 2017-12-05 天津市光明印务有限公司 Printed matter skips leaf multipage eliminating system
CN107606043A (en) * 2017-11-19 2018-01-19 东莞市松研智达工业设计有限公司 A kind of shock proof automobile energy storage damper of fourth gear
CN207570840U (en) * 2017-12-25 2018-07-03 马忆琳 A kind of inner pressed sewage sampler for environmental monitoring
CN209069895U (en) * 2018-10-23 2019-07-05 安徽辰控智能科技有限公司 A kind of safe and reliable gas monitoring instrument quality detection apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112270817A (en) * 2020-10-28 2021-01-26 广州研测安全技术有限公司 Combustible gas alarm calibrating device

Similar Documents

Publication Publication Date Title
CN102706752B (en) On-line soft infusion bag heat-seal strength detection device and soft infusion bag production line
CN205352643U (en) Solenoid valve leak testing device
CN102706753B (en) On-line soft infusion bag heat-seal strength detection device and soft infusion bag production line
CN204679224U (en) A kind of lifesaving mask seal performance testing table
CN209069895U (en) A kind of safe and reliable gas monitoring instrument quality detection apparatus
KR102108763B1 (en) Sealing device for leak testing device with automatic angle correction function
CN103786932B (en) A kind of transfusion flexible bag heat sealing strength on-line measuring device and infusion soft bag production line
CN113390586B (en) Airtight check out test set for manometer
CN108700488A (en) It reduces false rejection and increases the test method of the quantity for the container being tested for leakproofness
CN109142645A (en) A kind of safe and reliable gas monitoring instrument quality detection apparatus
CN207976261U (en) Air-tightness testing device
CN106017775A (en) Pipe with testing function
CN109632208A (en) A kind of pipeline air-leakage test head
CN204612880U (en) A kind of leak-checking apparatus of heat interchanger
CN202614612U (en) Transfusion soft bag heat seal strength online detection device and transfusion soft bag production line
CN107356377B (en) A kind of air-tightness detection device and detection method suitable for socket welding type shut-off valve
CN104280195A (en) Pump body airtightness detection device of urine metering pump
CN213974524U (en) Memory type aviation tire pressure testing rod
CN205352623U (en) Leakage quantity testing arrangement is let out to ultra -low temperature balanced seal ring
CN205300657U (en) Leakage quantity testing arrangement is let out to ultra -low temperature packing ring
CN213779390U (en) Air tightness detection mechanism
CN219348110U (en) Leak detection device for heat transfer pipe
CN216718347U (en) Sulfur hexafluoride non-disassembly verification device
CN213984213U (en) High-sealing cooling pipeline
CA2894247C (en) Leak detection formula, analyzer and methods

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
CB03 Change of inventor or designer information

Inventor after: Hu Fei

Inventor after: Zhou Yang

Inventor after: Chao Baichong

Inventor after: Wang Dajun

Inventor after: Chen Yan

Inventor before: Hu Fei

Inventor before: Zhou Yang

Inventor before: Chao Baichong

Inventor before: Wang Dajun

Inventor before: Chen Yan

Inventor before: Zhou Qingkui

CB03 Change of inventor or designer information
TA01 Transfer of patent application right

Effective date of registration: 20191217

Address after: 230000 Building 1, Hefei Institute of Public Safety, Tsinghua University, 5999 Xiyou Road, Hefei Economic and Technological Development Zone, Anhui Province

Applicant after: Anhui Ze Zhong Safety Science company limited

Applicant after: Beijing Chen'an Science and Technology Co., Ltd.

Applicant after: HEFEI PUBLIC SECURITY RESEARCH INSTITUTE OF TSINGHUA UNIVERSITY

Address before: 230000 Floor 1-3, Building 4, Hefei Institute of Public Safety, Tsinghua University, 5999 Xiyou Road, Hefei Economic and Technological Development Zone, Anhui Province

Applicant before: Anhui Chen control Intelligent Technology Co., Ltd.

Applicant before: Beijing Chen'an Science and Technology Co., Ltd.

Applicant before: HEFEI PUBLIC SECURITY RESEARCH INSTITUTE OF TSINGHUA UNIVERSITY

TA01 Transfer of patent application right