[go: up one dir, main page]

CN109568837A - It is a kind of flexibility aerosol composite fire extinguishing patch and preparation method - Google Patents

It is a kind of flexibility aerosol composite fire extinguishing patch and preparation method Download PDF

Info

Publication number
CN109568837A
CN109568837A CN201811519502.XA CN201811519502A CN109568837A CN 109568837 A CN109568837 A CN 109568837A CN 201811519502 A CN201811519502 A CN 201811519502A CN 109568837 A CN109568837 A CN 109568837A
Authority
CN
China
Prior art keywords
aerosol
patch
flexible
fire extinguishing
preparation
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
CN201811519502.XA
Other languages
Chinese (zh)
Inventor
孙九立
王魁江
杜金洲
马增超
沈喜兰
陈小寒
杨玉春
赵晓刚
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.)
Xi'an Sanye New Materials Co Ltd
Original Assignee
Xi'an Sanye New Materials 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 Xi'an Sanye New Materials Co Ltd filed Critical Xi'an Sanye New Materials Co Ltd
Priority to CN201811519502.XA priority Critical patent/CN109568837A/en
Publication of CN109568837A publication Critical patent/CN109568837A/en
Pending legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62CFIRE-FIGHTING
    • A62C3/00Fire prevention, containment or extinguishing specially adapted for particular objects or places
    • A62C3/16Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62DCHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
    • A62D1/00Fire-extinguishing compositions; Use of chemical substances in extinguishing fires
    • A62D1/06Fire-extinguishing compositions; Use of chemical substances in extinguishing fires containing gas-producing, chemically-reactive components

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Fire-Extinguishing Compositions (AREA)

Abstract

The invention discloses a kind of flexible aerosol composite fire extinguishing patch and preparation methods, the S type aerosol extinguishing agent of certain mesh number is mixed with carbohydrate, uniform stirring, it is dispersed in aqua type flexible high molecular material, obtain aerosol aqua type flexible high molecular material mixture, then it is squeezed into the aqueous flexible aerosol fire-extinguishing patch of certain thickness using tablet press machine, patch heating water removal is finally obtained into flexible aerosol composite fire extinguishing and is pasted.Sizeable patch can be according to circumstances cut into after the flexible aerosol fire-extinguishing patch molding prepared and is applied to patch side with double-sided adhesive, be attached to the inner wall of protected object.Patch preparation is simple, safe, sensitive, easy for installation, strong operability, without atmosphere harmful substance when burning, moment can effectively put out fire origin.

Description

It is a kind of flexibility aerosol composite fire extinguishing patch and preparation method
Technical field
The invention belongs to fire control technology fields, and in particular to a kind of system of novel flexible aerosol composite fire extinguishing patch Preparation Method.
Background technique
With the development of economy, resident and commercial power are increasing.Along with the increase of electricity consumption, the generation of appliance fire Also at abruptly increase situation.Usually occur electrical fire be in various small-sized confined spaces, such as: power distribution cabinet, motor cabinet, electric mortiser The small spaces such as plate, Air conditioner cabinet, gas tank storage cabinet.These places, since prolonged dust is fallen into, electrical overload, is inserted Head or the factors such as interface damage and power utilization environment are abnormal, cause power outlet, electricity consumption interface on fire, although electric cabinet and socket are all There is fire proofing package, but it is the reason of triggering fire, to give people that prolonged use, which loosens pipeline aging, interface all, The security of the lives and property threaten.
Now common S type aerosol extinguishing agent is specific to such fire source and researches and develops.Aerosol extinguishing agent is one The novel extinguishing chemical of kind has many advantages, such as that environmental protection, fire extinguishing is fast, effect is lasting, cheap, fire extinguishing range is wide, so that in recent years Development it is very rapid.Since its device structure is simple, occupied area is small, easy for installation, particularly suitable for small guard plot, cable The places such as ditch, underpass, furred ceiling interlayer, increasingly have been favored by people.Chinese patent CN207980206U discloses one Kind of intelligent fire fighting patch, it devises a heat-sensitive line from structure design aspect, using heat-sensitive line by aerosol and igniting It is connected out, to cause the fire extinguisher system of aerosol to put out a fire.Chinese patent CN204655839U disclose a kind of aerosol from Dynamic fire extinguishing patch, it is placed in pharmaceutical aerosol in small plastic big envelope, is pasted on cabinet, electronic box etc. to put out a fire.It is Chinese special Sharp CN107537127A discloses a kind of composite fire extinguishing patch and preparation method thereof, it is gone out using oxidant, reducing agent, microcapsules Fiery agent is solidified into hard solid patch by hot pressing moulding.The above existing patent of invention and fire extinguishing patch data are shown, Fire extinguishing patch prepared by them does not have flexible speciality.The fire extinguishing of hard be attached to electric cabinet, electronic box, plate, in Air conditioner cabinet In use process, it is easy to which, shake shatter by some force majeure is broken, so that aerosol falls off and influences fire extinguishing effect in fire Fruit.Therefore, designing prevents when a kind of fire extinguishing flexible is attached to patch shatter, shake is broken, fall off the skill for becoming urgently to be resolved at present Art problem.
Summary of the invention
To solve drawbacks described above existing in the prior art, that the purpose of the present invention is to provide a kind of production is safe, sensitive, Facilitate the novel flexible aerosol composite fire extinguishing patch and preparation method thereof of installation, fire extinguishing patch appropriate can go out when in use Fire patch adhesive surface smears sticking double faced adhesive tape to electric cabinet inner wall or plate inner cover upside, especially some small-sized plate inner wall bumps not It is flat, using flexible patch can preferably be pasted onto wooden partition without fragmentation, fall off.To improve the validity of fire extinguishing patch.
The present invention is realized by following technical proposals.
A kind of preparation method of the flexible aerosol composite fire extinguishing patch provided according to embodiments of the present invention, including walk as follows It is rapid:
1) 75~90 parts of S type aerosol extinguishing agents are mixed with 2~5 parts of carbohydrates according to mass ratio, uniform stirring is dispersed in In 5~20 parts of aqua type flexible high molecular materials, aerosol aqua type flexible high molecular material mixture is obtained;
2) the aqueous flexible aerosol fire-extinguishing patch of certain thickness then is squeezed into using tablet press machine;
3) patch is heated to 60~100 DEG C of water removals and obtains flexible aerosol composite fire extinguishing patch.
Preferably, the carbohydrate is one or more of glucose, lactose or cellulose mixture.
Preferably, the mesh number of the S type aerosol is 325~400 mesh.
Preferably, the aqua type flexible high molecular material is VAE lotion, polyvinyl acetate emulsion, PVA water-soluble One or more of liquid, aqua type silicon rubber or water base polyurethane mixture.
Preferably, the VAE emulsion content is 50~55%, polyvinyl acetate emulsion content is 40~50%, PVA Water-soluble liquid hold-up is 10~15%, the polyaminoester emulsion content that aqua type silicon rubber content is 35~55%, 30% is 30~ 40%.
Preferably, the aqueous flexible aerosol fire-extinguishing patch that the tablet press machine is squeezed into a thickness of 1~3mm.
A kind of flexible aerosol composite fire extinguishing of the method for the present invention preparation pastes material, the raw material including following mass fractions:
75~90 parts of S type aerosol, 2~5 parts of carbohydrate, 5~20 parts of aqua type flexible high molecular material.
The present invention has the advantages that due to taking above technical scheme
The beneficial effects of the present invention are:
1, for aqua type high molecular material as carrier loaded aerosol, patch after molding is very soft, and has certain resist Tensile property, even if affixed object inner surface is uneven, patch also can be very good to be pasted onto wooden partition and not easily to fall off, for quilt Patch object has good cementability;
2, easy to make, highly-safe, high sensitivity of putting out a fire, performance is significant, and process operability is strong, and when burning waves without low Hair property environmentally hazardous substance, it is easy to use, moment it can effectively put out fire source.
Specific embodiment
Below in conjunction with specific embodiment, the present invention will be described in detail, herein illustrative examples and explanation of the invention For explaining the present invention, but it is not as a limitation of the invention.
The preparation method of flexibility aerosol composite fire extinguishing patch of the invention, includes the following steps:
1) the S type aerosol extinguishing agent that 75~90 parts of mesh numbers are 325~400 mesh is mixed with 2~5 parts of carbohydrates according to mass ratio It closes, uniform stirring is dispersed in 5~20 parts of aqua type flexible high molecular materials, obtains aerosol aqua type flexible macromolecule material Expect mixture;
Wherein carbohydrate is one or more of glucose, lactose or cellulose mixture;Aqua type flexible macromolecule material Material is one of VAE lotion, polyvinyl acetate emulsion, PVA aqueous solution, aqua type silicon rubber or water base polyurethane or several Kind mixture.Wherein VAE emulsion content is 50~55%, and polyvinyl acetate emulsion content is that 40~50%, PVA aqueous solution contains Amount is 10~15%, and the polyaminoester emulsion content that aqua type silicon rubber content is 35~55%, 30% is 30~40%.
2) the aqueous flexible aerosol fire-extinguishing patch with a thickness of 1~3mm is then squeezed into using tablet press machine;
3) patch is heated to 60~100 DEG C of water removals and obtains flexible aerosol composite fire extinguishing patch.
Specific embodiment is given below to further illustrate the present invention.
Embodiment 1
85 parts of mesh numbers are mixed for 325 S type aerosol extinguishing agent and 5 parts of glucose, then mixed material is uniform It is dispersed in the VAE lotion that 10 parts of contents are 55%, obtains aerosol aqua type flexible high molecular material mixture, then utilize Tablet press machine is squeezed into the aqueous flexible aerosol fire-extinguishing patch of 2mm thickness, and patch is finally heated to 60 DEG C of water removals and obtains flexibility Aerosol composite fire extinguishing patch.
Embodiment 2
90 parts of mesh numbers are mixed for 350 S type aerosol extinguishing agent and 2 parts of lactose, then mixed material is uniformly divided It is dispersed in the polyvinyl acetate emulsion that 8 parts of contents are 45%, obtains aerosol aqua type flexible high molecular material mixture, so The aqueous flexible aerosol fire-extinguishing patch of 2mm thickness is squeezed into using tablet press machine afterwards, patch is finally heated to 80 DEG C and is removed water It is pasted to flexible aerosol composite fire extinguishing.
Embodiment 3
75 parts of mesh numbers are mixed for 375 S type aerosol extinguishing agent and 5 parts of celluloses, then mixed material is uniform It is dispersed in the PVA aqueous solution that 20 parts of contents are 15%, obtains aerosol aqua type flexible high molecular material mixture, it is then sharp The aqueous flexible aerosol fire-extinguishing patch of 1mm thickness is squeezed into tablet press machine, finally by patch be heated to 100 DEG C water removal obtain it is soft Property aerosol composite fire extinguishing patch.
Embodiment 4
80 parts of mesh numbers are mixed for 400 S type aerosol extinguishing agent and 5 parts of glucose, then mixed material is uniform It is dispersed in the aqua type silicon rubber that 15 parts of contents are 55%, obtains aerosol aqua type flexible high molecular material mixture, so The aqueous flexible aerosol fire-extinguishing patch of 1mm thickness is squeezed into using tablet press machine afterwards, patch is finally heated to 90 DEG C and is removed water It is pasted to flexible aerosol composite fire extinguishing.
Embodiment 5
78 parts of mesh numbers are mixed for 400 S type aerosol extinguishing agent and 2 parts of celluloses, then mixed material is uniform It is dispersed in the water base polyurethane that 20 parts of contents are 35%, obtains aerosol aqua type flexible high molecular material mixture, so The aqueous flexible aerosol fire-extinguishing patch of 3mm thickness is squeezed into using tablet press machine afterwards, patch is finally heated to 80 DEG C and is removed water It is pasted to flexible aerosol composite fire extinguishing.
Embodiment 6
90 parts of mesh numbers are mixed for 400 S type aerosol extinguishing agent and 5 parts of glucose, then mixed material is uniform It is dispersed in the polyaminoester emulsion that 5 parts of contents are 30%, obtains aerosol aqua type flexible high molecular material mixture, it is then sharp The aqueous flexible aerosol fire-extinguishing patch of 1mm thickness is squeezed into tablet press machine, finally by patch be heated to 80 DEG C water removal obtain it is soft Property aerosol composite fire extinguishing patch.
The present invention considers the characteristics of aerosol extinguishing agent fire extinguishing, and existing solid has gas again in the product discharged in burning Body, wherein gas is mainly by N2、CO2、CO、O2It is formed with micro hydrocarbon.Solid particle is the oxidation of sylvite and potassium Object.Extremely tiny particle is generated when solid product cooling, cohesion, since particle is extremely tiny, large specific surface area is conducive to certainly Increase the sphere of action of solid particle by the collosol state of the absorption and heat dissipation of base, and the formation of gas dispersion solid particle, Extended durations of action and improve extinguishing effect.Extinguishing chemical, which is supported on, can be very good plastotype in aqua type high molecular material and becomes Fire extinguishing patch flexible becomes the compound fire-extinguishing patch of function admirable.Fire extinguishing patch appropriate can paste when in use in fire extinguishing patch Face is smeared on the upside of sticking double faced adhesive tape to electric cabinet inner wall or plate inner cover, and especially some small-sized plate inner walls are uneven, is used Flexible patch can preferably be pasted onto wooden partition without fragmentation, fall off.To improve the validity of fire extinguishing patch.In addition, preparation Flexible patch thickness it is uniform, can be pasted onto as the case may be with scissor cut at suitable size during use At the inner wall of protected object.
Therefore, flexible aerosol composite fire extinguishing patch prepared by the present invention has certain flexibility when in use, when being attached to It is surveyed in electric cabinet, plate and is not easy to be shattered, shakes and break, fall off, to improve the validity of fire extinguishing patch.It is good for a kind of processability Fire extinguishing patch, is worth of widely use.
The present invention is not limited to the above embodiments, on the basis of technical solution disclosed by the invention, the skill of this field For art personnel according to disclosed technology contents, one can be made to some of which technical characteristic by not needing creative labor A little replacements and deformation, these replacements and deformation are within the scope of the invention.

Claims (7)

1. a kind of preparation method of flexibility aerosol composite fire extinguishing patch, which comprises the steps of:
1) 75~90 parts of S type aerosol extinguishing agents are mixed with 2~5 parts of carbohydrates according to mass ratio, uniform stirring, it is dispersed in 5~ In 20 parts of aqua type flexible high molecular materials, aerosol aqua type flexible high molecular material mixture is obtained;
2) the aqueous flexible aerosol fire-extinguishing patch of certain thickness then is squeezed into using tablet press machine;
3) patch is heated to 60~100 DEG C of water removals and obtains flexible aerosol composite fire extinguishing patch.
2. a kind of preparation method of flexible aerosol composite fire extinguishing patch according to claim 1, which is characterized in that the sugar Class is one or more of glucose, lactose or cellulose mixture.
3. a kind of preparation method of flexible aerosol composite fire extinguishing patch according to claim 1, which is characterized in that the S The mesh number of type aerosol is 325~400 mesh.
4. a kind of preparation method of flexible aerosol composite fire extinguishing patch according to claim 1, which is characterized in that the water Fundamental mode flexible high molecular material is that VAE lotion, polyvinyl acetate emulsion, PVA aqueous solution, aqua type silicon rubber or aqua type are poly- One or more of urethane mixture.
5. a kind of preparation method of flexible aerosol composite fire extinguishing patch according to claim 4, which is characterized in that described VAE emulsion content is 50~55%, and polyvinyl acetate emulsion content is 40~50%, the water-soluble liquid hold-up of PVA is 10~15%, The polyaminoester emulsion content that aqua type silicon rubber content is 35~55%, 30% is 30~40%.
6. a kind of preparation method of flexible aerosol composite fire extinguishing patch according to claim 1, which is characterized in that the pressure The aqueous flexible aerosol fire-extinguishing patch that piece machine is squeezed into a thickness of 1~3mm.
7. a kind of flexible aerosol composite fire extinguishing according to claim 1 pastes material, which is characterized in that including following quality The raw material of score:
75~90 parts of S type aerosol, 2~5 parts of carbohydrate, 5~20 parts of aqua type flexible high molecular material.
CN201811519502.XA 2018-12-12 2018-12-12 It is a kind of flexibility aerosol composite fire extinguishing patch and preparation method Pending CN109568837A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811519502.XA CN109568837A (en) 2018-12-12 2018-12-12 It is a kind of flexibility aerosol composite fire extinguishing patch and preparation method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811519502.XA CN109568837A (en) 2018-12-12 2018-12-12 It is a kind of flexibility aerosol composite fire extinguishing patch and preparation method

Publications (1)

Publication Number Publication Date
CN109568837A true CN109568837A (en) 2019-04-05

Family

ID=65929494

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811519502.XA Pending CN109568837A (en) 2018-12-12 2018-12-12 It is a kind of flexibility aerosol composite fire extinguishing patch and preparation method

Country Status (1)

Country Link
CN (1) CN109568837A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111068234A (en) * 2019-12-26 2020-04-28 语路科技(深圳)有限公司 Polymorphic preparation method and fire extinguishing patch of novel bionic nanocapsule fire extinguisher
CN113426060A (en) * 2021-07-27 2021-09-24 常州扬鹏科技有限公司 Self-temperature-sensing fire extinguishing patch and preparation method thereof
CN116870416A (en) * 2023-05-24 2023-10-13 湖北及安盾消防科技有限公司 Ultrathin aerosol fire extinguishing agent and production process thereof

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0976424A1 (en) * 1998-07-30 2000-02-02 R-Amtech International, Inc. Pyrotechnical, aerosol-forming composition for extinguishing fires and process for its preparation
CN101757760A (en) * 2010-01-19 2010-06-30 陕西坚瑞消防股份有限公司 Catalytic chemical coolant for hot aerosol and preparation method thereof
CN103370104A (en) * 2011-02-10 2013-10-23 皮罗切米卡中心有限责任公司 Autonomous fire-fighting agent
CN204655839U (en) * 2015-05-08 2015-09-23 江苏日明消防设备有限公司 A kind of aerosol self-extinguishing is pasted
CN107537127A (en) * 2017-10-11 2018-01-05 公牛集团有限公司 A kind of composite fire extinguishing paster and preparation method thereof
CN107854800A (en) * 2017-11-24 2018-03-30 西安威西特消防科技有限责任公司 A kind of self-extinguishing composition
CN108578945A (en) * 2018-03-20 2018-09-28 宋建芳 A kind of aerosol fire-extinguishing patch
CN207980206U (en) * 2018-02-22 2018-10-19 天津鹏安数讯消防设备工程有限公司 A kind of intelligent fire fighting patch

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0976424A1 (en) * 1998-07-30 2000-02-02 R-Amtech International, Inc. Pyrotechnical, aerosol-forming composition for extinguishing fires and process for its preparation
CN101757760A (en) * 2010-01-19 2010-06-30 陕西坚瑞消防股份有限公司 Catalytic chemical coolant for hot aerosol and preparation method thereof
CN103370104A (en) * 2011-02-10 2013-10-23 皮罗切米卡中心有限责任公司 Autonomous fire-fighting agent
CN204655839U (en) * 2015-05-08 2015-09-23 江苏日明消防设备有限公司 A kind of aerosol self-extinguishing is pasted
CN107537127A (en) * 2017-10-11 2018-01-05 公牛集团有限公司 A kind of composite fire extinguishing paster and preparation method thereof
CN107854800A (en) * 2017-11-24 2018-03-30 西安威西特消防科技有限责任公司 A kind of self-extinguishing composition
CN207980206U (en) * 2018-02-22 2018-10-19 天津鹏安数讯消防设备工程有限公司 A kind of intelligent fire fighting patch
CN108578945A (en) * 2018-03-20 2018-09-28 宋建芳 A kind of aerosol fire-extinguishing patch

Non-Patent Citations (7)

* Cited by examiner, † Cited by third party
Title
孙军田等: "《固定消防设施操作管理实用手册》", 31 May 2014, 中国人民公安大学出版社 *
李子东等: "《实用胶粘剂原材料手册》", 31 July 1999, 国防工业出版社 *
李捷玮等: "《常用药物辅料手册》", 30 June 2000, 第二军医大学出版社 *
焦桓等: "《无机材料化学实验》", 31 January 2014, 陕西师范大学出版总社有限公司 *
百度百科: "《https://baike.baidu.com/history/压片机/4436352/126813989》", 28 February 2018 *
百度百科: "《https://baike.baidu.com/historylist/水基硅橡胶/3926072》", 3 December 2015 *
马长福: "《简明粘接技术手册》", 31 July 2012, 上海科学技术文献出版社 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111068234A (en) * 2019-12-26 2020-04-28 语路科技(深圳)有限公司 Polymorphic preparation method and fire extinguishing patch of novel bionic nanocapsule fire extinguisher
CN113426060A (en) * 2021-07-27 2021-09-24 常州扬鹏科技有限公司 Self-temperature-sensing fire extinguishing patch and preparation method thereof
CN116870416A (en) * 2023-05-24 2023-10-13 湖北及安盾消防科技有限公司 Ultrathin aerosol fire extinguishing agent and production process thereof
CN116870416B (en) * 2023-05-24 2024-05-14 湖北及安盾消防科技有限公司 Ultra-thin aerosol fire extinguishing agent and its production process
WO2024239450A1 (en) * 2023-05-24 2024-11-28 湖北及安盾消防科技有限公司 Ultrathin aerosol fire-extinguishing agent and production process therefor

Similar Documents

Publication Publication Date Title
CN109568837A (en) It is a kind of flexibility aerosol composite fire extinguishing patch and preparation method
CN207353336U (en) A kind of power lithium battery box with extinguishing device
CN205069780U (en) Take extinguishing device's lithium ion battery group
CN207980206U (en) A kind of intelligent fire fighting patch
CN113426060A (en) Self-temperature-sensing fire extinguishing patch and preparation method thereof
CN209653279U (en) A kind of interior decoration composite plate of environmental protection flame retardant
CN201520736U (en) Insulating tape with exhaust groove
CN207398630U (en) A kind of high-tension switch cabinet
CN113827906A (en) Preparation method of dry powder extinguishing agent containing allophanate salt
CN206116493U (en) Explosion -proof layer of battery
JP2020161281A (en) Nonaqueous electrolyte secondary battery electrode composition, nonaqueous electrolyte secondary battery electrode arranged by use thereof, and nonaqueous electrolyte secondary battery
CN114388956A (en) Safe explosion-proof battery box capable of automatically releasing pressure and processing technology thereof
CN109289147A (en) A kind of automatic dry chemical fire extinguisher with alarm function
CN206566393U (en) Portable multi-function extinguishing device available for emergency lighting
CN111068234A (en) Polymorphic preparation method and fire extinguishing patch of novel bionic nanocapsule fire extinguisher
CN219323805U (en) Fire extinguishing device placed inside battery box
CN204860774U (en) Ultrasonic mouse repeller with clock display timing function
CN216390390U (en) 86 seamless junction box
EP4570757A1 (en) Heat control member comprising wet-gel blanket
CN220546492U (en) Self-excitation type fire extinguishing patch
CN216598587U (en) Energy-saving type dual-power switch power distribution device
CN217920724U (en) Foam adhesive tape roll convenient to cut
CN216450173U (en) Fire monitoring device
CN208689626U (en) A kind of wall-mounted attendance recorder for business administration
CN220070546U (en) An aerosol fire extinguishing device with a nozzle sticker

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: 20190405

RJ01 Rejection of invention patent application after publication