CN208485627U - A kind of air floatation machine - Google Patents
A kind of air floatation machine Download PDFInfo
- Publication number
- CN208485627U CN208485627U CN201820471864.5U CN201820471864U CN208485627U CN 208485627 U CN208485627 U CN 208485627U CN 201820471864 U CN201820471864 U CN 201820471864U CN 208485627 U CN208485627 U CN 208485627U
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- air bearing
- reaction tank
- bearing reaction
- chain
- scum board
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Abstract
The utility model relates to sewage treatment fields, more particularly to a kind of air floatation machine, including air bearing reaction tank and dross pond, bubble generator is installed in air bearing reaction tank, the top of air bearing reaction tank is equipped with slag scraping mechanism, slag scraping mechanism includes scum board and power part, power part includes mounting base, motor, driving wheel, driven wheel and chain, mounting base is installed on the two sides of air bearing reaction tank, line shaft is installed between driving wheel, driven shaft is installed between driven wheel, it is connected between driving wheel and driven wheel by chain, limited block is rotatably equipped on the side wall of chain, limited block is slidably mounted on limited post, the both ends of limited post, which are fixedly installed with, scrapes panel seat, it scrapes and scum board is installed between panel seat, the two sides of air bearing reaction tank offer the dross collecting tank parallel with scum board, dross collecting tank is connected to dross pond.The utility model improves the processing working efficiency of sewage, reduces corrosion and damage of the sewage to air bearing machine equipment, increases the service life of equipment.
Description
Technical field
The utility model relates to sewage treatment field more particularly to a kind of air floatation machines.
Background technique
Air floatation machine is that air dissolving system generates a large amount of micro air bubble in water, makes air with the micro-bubble shape of high degree of dispersion
Formula is attached on suspended particle, is caused density to be less than the state of water, so that it is kept afloat using law of buoyancy, to realize
The water treatment facilities of solid- liquid separation；Air floatation machine is divided into super efficiency shallow air flotation machine, air flotation turbo, flat flow air floatation machine.Exist at present
There is application in terms of water supply, industrial wastewater and municipal sewage treatment；Air floatation machine advantage is that its solid- liquid separation equipment has investment
Less, the features such as taking up an area minimum face, high degree of automation, convenient operation and management.
Air floatation machine working environment corrosivity is stronger, and continuous operation throughout the year, which results in the vibration of air floatation machine is larger,
Must not infrequently the components such as bearing, impeller, axis be checked and be replaced；The slag scraping mechanism of existing air floatation machine mostly uses greatly
The chain drive of chain drive, slag scraping mechanism is slow, and the air floatation machine of chain drive, when carrying out scraping slag, scum board is with chain
Item is moved, and the sewage on scum board can drop onto zero, bearing, impeller, axis of slag scraping mechanism etc. with the overturning of scum board
It causes to corrode on part, influences working efficiency and service life of equipment, increase cost of sewage disposal.
Therefore, a kind of new air floatation machine is developed, not only there is urgent researching value, it may have good economic benefit and work
Industry application potential, this is exactly where the power that the utility model is accomplished and basis.
Utility model content
In order to overcome the defect of the prior art as indicated above, the present inventor has made intensive studies this, is paying
After a large amount of creative works, so as to complete the utility model.
Specifically, the technical problem to be solved by the utility model is to provide a kind of air floatation machine, to improve the place of sewage
Working efficiency is managed, corrosion and damage of the sewage to air bearing machine equipment is reduced, increases the service life of equipment.
In order to solve the above technical problems, the technical solution of the utility model is:
One end of a kind of air floatation machine, including air bearing reaction tank and dross pond, the air bearing reaction tank is equipped with air bearing water inlet,
The other end of the air bearing reaction tank is equipped with air bearing water outlet, is equipped with bubble generator, the gas in the air bearing reaction tank
The top of floating reaction tank is equipped with slag scraping mechanism, and the slag scraping mechanism includes scum board and power part, under the scum board
Portion is coupled with the air bearing reaction tank, and the power part includes mounting base, motor, driving wheel, driven wheel and chain,
The mounting base is installed on the two sides of the air bearing reaction tank, and the driving wheel and the driven wheel are mounted on the mounting base
On, line shaft is installed between the driving wheel, driven shaft is installed between the driven wheel, the driving wheel and described driven
It is connected between wheel by the chain, limited block is rotatably equipped on the side wall of the chain, the limited block is slidably mounted on
On limited post, the both ends of the limited post, which are fixedly installed with, scrapes panel seat, and described scrape is equipped with the scum board between panel seat, described
The two sides of air bearing reaction tank offer the dross collecting tank parallel with the scum board, the dross collecting tank and the dross pond
Connection.
In the present invention, as an improvement technical solution, protection is installed using bolt on the scum board
Plate.
As an improvement technical solution, the limited post is equipped with two, slide opening, institute offered on the limited block
It states limited block to be set on the limited post, and is coated with waterproof oil film on the limited post.
As an improvement technical solution, described scrape be equipped with gag lever post on panel seat, the both ends installation of the gag lever post
There is limit base, the limit base is installed on the two sides of the dross collecting tank.
As an improvement technical solution, aeration devices are installed in the air bearing water inlet of the air bearing reaction tank, institute
Stating aeration devices includes aerator, and the aerator inner cavity is aeration section, and the aeration section is connected to inlet end.
As an improvement technical solution, the length of the chain is greater than the length of the air bearing reaction tank, the peace
Dress seat is installed on the two sides of the dross collecting tank, is equipped with speed reducer on the motor.
After above-mentioned technical proposal, the beneficial effects of the utility model are:
One end of a kind of air floatation machine, including air bearing reaction tank and dross pond, air bearing reaction tank is equipped with air bearing water inlet, air bearing
The other end of reaction tank is equipped with air bearing water outlet, and bubble generator, the top peace of air bearing reaction tank are equipped in air bearing reaction tank
Equipped with slag scraping mechanism, slag scraping mechanism includes scum board and power part, and lower part and the air bearing reaction tank of scum board are coupled, and is moved
Power component includes mounting base, motor, driving wheel, driven wheel and chain, and mounting base is installed on the two sides of air bearing reaction tank, actively
Wheel and driven wheel are mounted in mounting base, and line shaft is equipped between driving wheel, driven shaft is equipped between driven wheel, actively
It is connected between wheel and driven wheel by chain, is rotatably equipped with limited block on the side wall of chain, limited block is slidably mounted on limit
On column, the both ends of limited post, which are fixedly installed with, scrapes panel seat, scrapes and is equipped with scum board between panel seat, and the two sides of air bearing reaction tank open up
There is the dross collecting tank parallel with scum board, dross collecting tank is connected to dross pond, when the utility model is used, bubble occurs
Device can generate micro air bubble, be attached to air on suspended particle in the form of the micro-bubble of high degree of dispersion, cause density
Less than the state of water, it is set to keep afloat using law of buoyancy, to realize solid- liquid separation, the chain of slag scraping mechanism is with master
The rotation of driving wheel is moved, and the movement of chain is able to drive the movement of limited block, so that scum board is moved, when chain into
When row turning, limited block tilts therewith with the turning of chain, then as the movement of chain, drives the movement of scum board, real
Showed reciprocating movement, so as to realize scum board can skimming, scrape mud, realize the processing to sewage, avoid because scraping slag
The chain drive of mechanism is slow, and the air floatation machine of chain drive, when carrying out scraping slag, scum board is moved with chain, is scraped
Sewage on slag plate can be dropped into the overturning of scum board to be caused to corrode on the components such as the bearing, impeller, axis of slag scraping mechanism,
Working efficiency and service life of equipment are influenced, cost of sewage disposal is increased；Reach the processing working efficiency for improving sewage, reduces
The corrosion of sewage, improves the service life of equipment, and the dross collecting tank that two sides open up can collect scum board and move back and forth band
Dynamic sludge and suspended particle, improves work efficiency.
Protective plate is installed using bolt on scum board, when the utility model is used, protective plate can reduce sewage pair
The direct damage of scum board, increases service life, and is bolted the detachable installation that can increase scum board.
Limited post is equipped with two, and slide opening is offered on limited block, and limited block is set on limited post, and is wrapped on limited post
It is covered with waterproof oil film, when the utility model is used, limited post, which is arranged to two, increases the mobile stability of limited block, is being limited
Position block is moved with chain, and as chain carries out rotation movement when chain is bent, while limited block slides
To the lower half portion of limited post, scum board is driven to be moved, the splashing that waterproof oil film can be avoided sewage causes limited post to send out
It gets rusty erosion, increases the service life of equipment.
It scrapes and is equipped with gag lever post on panel seat, the both ends of gag lever post are equipped with limit base, and limit base is installed on dross collecting tank
Two sides, when the utility model is used, gag lever post is capable of the moving direction of limiting scraper seat, limit base is capable of fixing gag lever post
Position, be easy to implement the reciprocating movement of scum board, accelerate the processing of sewage, improve work efficiency, reduce costs.
Aeration devices are installed, aeration devices include aerator, aerator inner cavity in the air bearing water inlet of air bearing reaction tank
To be aerated section, aeration section be connected to inlet end, when the utility model is used, aerator have stir abundant, highly effective oxygen dissolving,
System is simple, reliable performance, noiseless, easy to install, the few maintenance of operating and advantage applied widely, aerator can be used for work
Industry wastewater treatment and sanitary sewage disposal, it can also be used to the processing of the surface water such as river, lake, the water supply of underground water deferrization and demanganization
Processing；Can be used for activated sludge process aeration tank aeration stirring, the stirring of conditioning tank homogeneous, sewage treatment plant sediment by aeration, aerobic
The occasions such as pond aeration, coagulating basin stirring, the reaction tank stirring conjunction of chemical method.
The length of chain is greater than the length of air bearing reaction tank, and mounting base is installed on the two sides of dross collecting tank, pacifies on motor
Equipped with speed reducer, when the utility model is used, the length that the length of chain is greater than air bearing reaction tank being capable of buffer chain movement
The stopping for driving limited block to cause limited block temporary when being moved influences to scrape slag to what the foam on air bearing reaction tank carried out,
Speed reducer can control the velocity of rotation of motor, control the movement speed of sliding seat, so that scum board be driven to carry out scraping mud and scrape
Slag.
In conclusion the utility model is easy to operate, cost is saved, convenient for promoting, improves the processing working efficiency of sewage,
Corrosion and damage of the sewage to air bearing machine equipment are reduced, the service life of equipment is increased.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the overlooking structure diagram of the utility model；
In figure: 1, air bearing reaction tank, 2, air bearing water inlet, 3, air bearing water outlet, 4, bubble generator, 5, scum board, 6,
Mounting base, 7, motor, 8, driving wheel, 9, driven wheel, 10, chain, 11, line shaft, 12, aerator, 13, driven shaft, 14, scraper plate
Seat, 15, protective plate, 16, limited post, 17, limited block, 18, dross collecting tank.
Specific embodiment
Below with reference to specific embodiment, the present invention will be further described.But the purposes of these exemplary embodiments
Only it is used to enumerate the utility model with purpose, any type of any limit not is constituted to the real protection scope of the utility model
It is fixed, it is more non-that the protection scope of the utility model is confined to this.
As depicted in figs. 1 and 2, a kind of air floatation machine, including air bearing reaction tank 1 and dross pond, one end of air bearing reaction tank 1 are set
There is air bearing water inlet 2, the other end of air bearing reaction tank 1 is equipped with air bearing water outlet 3, is equipped with bubble in air bearing reaction tank 1
Device 4, the top of air bearing reaction tank 1 are equipped with slag scraping mechanism, and slag scraping mechanism includes scum board 5 and power part, under scum board 5
Portion is coupled with air bearing reaction tank 1, and power part includes mounting base 6, motor 7, driving wheel 8, driven wheel 9 and chain 10,
Mounting base 6 is installed on the two sides of air bearing reaction tank 1, and driving wheel 8 and driven wheel 9 are mounted in mounting base 6, between driving wheel 8
Line shaft 11 is installed, driven shaft 13 is installed between driven wheel 9, is connected between driving wheel 8 and driven wheel 9 by chain 10,
Limited block 17 is rotatably equipped on the side wall of chain 10, limited block 17 is slidably mounted on limited post 16, the both ends of limited post 16
It is fixedly installed with and scrapes panel seat 14, scrape and scum board 5 is installed between panel seat 14, the two sides of air bearing reaction tank 1 offer and scum board 5
Parallel dross collecting tank 18, dross collecting tank 18 are connected to dross pond.
Wherein, bubble generator 4 can generate micro air bubble, be attached to air in the form of the micro-bubble of high degree of dispersion
On suspended particle, causes density to be less than the state of water, so that it is kept afloat using law of buoyancy, thus realize solid- liquid separation,
The chain 10 of slag scraping mechanism is moved with the rotation of driving wheel 8, and the movement of chain 10 is able to drive the movement of limited block 17,
To which scum board 5 is moved, when chain 10 is turned, limited block 17 tilts therewith with the turning of chain 10, then
With the movement of chain 10, the movement of scum board 5 is driven, reciprocating movement is realized, so as to realize that scum board 5 can be skimmed
Slag scrapes mud, realizes the processing to sewage, and the chain 10 avoided because of slag scraping mechanism is driven slowly, and the transmission of chain 10
When carrying out scraping slag, scum board 5 is moved air floatation machine with chain 10, and the sewage on scum board 5 can turning over scum board 5
Turn to drop onto cause to corrode on the components such as the bearing, impeller, axis of slag scraping mechanism, influence working efficiency and service life of equipment,
Increase cost of sewage disposal；Reach the processing working efficiency for improving sewage, reduces the corrosion of sewage, improve the use of equipment
Service life, the dross collecting tank 18 that two sides open up can collect scum board 5 and move back and forth the sludge and suspended particle driven, improve
Working efficiency.
Protective plate 15 is installed using bolt on scum board 5, wherein protective plate 15 can reduce sewage to scum board 5
It directly damages, increases service life, and be bolted the detachable installation that can increase scum board 5.
Limited post 16 is equipped with two, and slide opening is offered on limited block 17, and limited block 17 is set on limited post 16, and limits
Waterproof oil film is coated on the column 16 of position, wherein limited post 16 is arranged to two and increases the mobile stability of limited block 17, is limiting
Position block 17 is moved with chain 10, as chain 10 carries out rotation movement, same time limit when chain 10 is bent
Position block 17 slides into the lower half portion of limited post 16, drives scum board 5 to be moved, waterproof oil film can be avoided the splashing of sewage
It causes limited post 16 to corrode, increases the service life of equipment.
It scrapes and is equipped with gag lever post on panel seat 14, the both ends of gag lever post are equipped with limit base, and limit base is installed on dross collection
The two sides of slot 18, wherein gag lever post is capable of the moving direction of limiting scraper seat 14, and limit base is capable of fixing the position of gag lever post,
It is easy to implement the reciprocating movement of scum board 5, accelerates the processing of sewage, improves work efficiency, reduce costs.
Aeration devices are installed, aeration devices include aerator 12, aerator in the air bearing water inlet 2 of air bearing reaction tank 1
12 inner cavities are aeration section, and aeration section is connected to inlet end, wherein aerator 12, which has, stirs abundant, highly effective oxygen dissolving, system letter
List, reliable performance, noiseless, easy to install, the few maintenance of operating and advantage applied widely, aerator 12 can be used for Industry Waste
Water process and sanitary sewage disposal, it can also be used at the processing of the surface water such as river, lake, the water supply of underground water deferrization and demanganization
Reason；It can be used for activated sludge process aeration tank aeration stirring, the stirring of conditioning tank homogeneous, the sediment by aeration of sewage treatment plant, aerobic tank
The occasions such as aeration, coagulating basin stirring, the reaction tank stirring conjunction of chemical method.
The length of chain 10 is greater than the length of air bearing reaction tank 1, and mounting base 6 is installed on the two sides of dross collecting tank 18, electricity
Speed reducer (being not drawn into figure) is installed, wherein the length that the length of chain 10 is greater than air bearing reaction tank 1 can buffer on machine 7
The mobile stopping for driving limited block 17 to cause limited block 17 temporary when being moved of chain 10, influences on air bearing reaction tank 1
What foam carried out scrapes slag, and speed reducer can control the velocity of rotation of motor 7, controls the movement speed of sliding seat, scrapes to drive
Slag plate 5 carries out scraping mud and scrapes slag.
When the utility model is used, sewage enters air floatation machine by air bearing water inlet, as bubble generator can produce
Raw micro air bubble, is attached to air on suspended particle in the form of the micro-bubble of high degree of dispersion, and density is caused to be less than water
State makes it keep afloat using law of buoyancy, so that solid- liquid separation is realized, by the rubbish in sewage with the floating of bubble
To the surface of air bearing reaction tank, the chain of slag scraping mechanism is moved with the rotation of driving wheel, and the movement of chain is able to drive
The movement of limited block, so that scum board is moved, when chain is turned, limited block inclines therewith with the turning of chain
Tiltedly, then as the movement of chain, the movement of scum board is driven, realizes reciprocating movement, so as to realize that scum board can
Mud is scraped in skimming, realizes the processing to sewage, is avoided because the chain drive of slag scraping mechanism is slow, and the gas of chain drive
When carrying out scraping slag, scum board is moved floating machine with chain, and the sewage on scum board can be dripped with the overturning of scum board
It causes to corrode on the components such as bearing, impeller, axis to slag scraping mechanism, influences working efficiency and service life of equipment, increase
Cost of sewage disposal；Reach the processing working efficiency for improving sewage, reduce the corrosion of sewage, improve the service life of equipment,
The dross collecting tank that two sides open up can collect scum board and move back and forth the sludge and suspended particle driven, improve work effect
Rate.
It should be appreciated that the purposes of these embodiments is merely to illustrate the utility model and is not intended to limitation the utility model
Protection scope.In addition, it should also be understood that, those skilled in the art can be right after having read the technology contents of the utility model
The utility model makees various change, modification and/or variation, all these equivalent forms equally fall within right appended by the application and want
Seek book within the limits of the protection.
Claims (6)
1. a kind of air floatation machine, it is characterised in that: including air bearing reaction tank and dross pond, one end of the air bearing reaction tank is equipped with gas
Floating water inlet, the other end of the air bearing reaction tank are equipped with air bearing water outlet, are equipped with bubble in the air bearing reaction tank
Device, the top of the air bearing reaction tank are equipped with slag scraping mechanism, and the slag scraping mechanism includes scum board and power part, described to scrape
The lower part of slag plate is coupled with the air bearing reaction tank, and the power part includes mounting base, motor, driving wheel, driven wheel
And chain, the mounting base are installed on the two sides of the air bearing reaction tank, the driving wheel and the driven wheel are mounted on
In the mounting base, line shaft is installed between the driving wheel, driven shaft, the driving wheel are installed between the driven wheel
It is connected between the driven wheel by the chain, limited block, the limited block is rotatably equipped on the side wall of the chain
Be slidably mounted on limited post, the both ends of the limited post, which are fixedly installed with, scrapes panel seat, it is described scrape be equipped between panel seat it is described
Scum board, the two sides of the air bearing reaction tank offer the dross collecting tank parallel with the scum board, the dross collecting tank
It is connected to the dross pond.
2. a kind of air floatation machine as described in claim 1, it is characterised in that: be equipped with protection using bolt on the scum board
Plate.
3. a kind of air floatation machine as described in claim 1, it is characterised in that: the limited post is equipped with two, the limited block
On offer slide opening, the limited block is set on the limited post, and waterproof oil film is coated on the limited post.
4. a kind of air floatation machine as described in claim 1, it is characterised in that: described scrape is equipped with gag lever post on panel seat, the limit
The both ends of position bar are equipped with limit base, and the limit base is installed on the two sides of the dross collecting tank.
5. a kind of air floatation machine as described in claim 1, it is characterised in that: installation in the air bearing water inlet of the air bearing reaction tank
There are aeration devices, the aeration devices include aerator, and the aerator inner cavity is aeration section, the aeration section and inlet end
Connection.
6. a kind of air floatation machine as described in claim 1, it is characterised in that: the length of the chain is greater than the air bearing reaction tank
Length, the mounting base is installed on the two sides of the dross collecting tank, is equipped with speed reducer on the motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820471864.5U CN208485627U (en) | 2018-03-30 | 2018-03-30 | A kind of air floatation machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820471864.5U CN208485627U (en) | 2018-03-30 | 2018-03-30 | A kind of air floatation machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208485627U true CN208485627U (en) | 2019-02-12 |
Family
ID=65251860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820471864.5U Expired - Fee Related CN208485627U (en) | 2018-03-30 | 2018-03-30 | A kind of air floatation machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN208485627U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110713223A (en) * | 2019-11-13 | 2020-01-21 | 无锡工源环境科技股份有限公司 | Combined air flotation efficient slag scraping device |
| CN112408534A (en) * | 2020-10-22 | 2021-02-26 | 苏州创之杰环保设备工程有限公司 | Pressure type cyclone air flotation separation equipment for treating oily wastewater |
| CN112678892A (en) * | 2020-12-10 | 2021-04-20 | 无锡帝浦瑞斯环保科技有限公司 | Backwashing-free filtering device and process utilizing bubble technology |
| CN114349114A (en) * | 2022-01-10 | 2022-04-15 | 无锡工源环境科技股份有限公司 | Dross fishing equipment for air supporting clarification plant |
| CN115594245A (en) * | 2022-07-13 | 2023-01-13 | 钱广燕（Cn） | Air floatation purification device for industrial wastewater treatment |
| CN117046818A (en) * | 2023-10-13 | 2023-11-14 | 苏州市元让超声科技有限公司 | Circulation filtration formula ultrasonic cleaner |
| CN118084106A (en) * | 2024-04-23 | 2024-05-28 | 威海英卡瑞环保科技股份有限公司 | Centralized processing equipment for paint sewage |
-
2018
- 2018-03-30 CN CN201820471864.5U patent/CN208485627U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110713223A (en) * | 2019-11-13 | 2020-01-21 | 无锡工源环境科技股份有限公司 | Combined air flotation efficient slag scraping device |
| CN112408534A (en) * | 2020-10-22 | 2021-02-26 | 苏州创之杰环保设备工程有限公司 | Pressure type cyclone air flotation separation equipment for treating oily wastewater |
| CN112678892A (en) * | 2020-12-10 | 2021-04-20 | 无锡帝浦瑞斯环保科技有限公司 | Backwashing-free filtering device and process utilizing bubble technology |
| CN114349114A (en) * | 2022-01-10 | 2022-04-15 | 无锡工源环境科技股份有限公司 | Dross fishing equipment for air supporting clarification plant |
| CN115594245A (en) * | 2022-07-13 | 2023-01-13 | 钱广燕（Cn） | Air floatation purification device for industrial wastewater treatment |
| CN117046818A (en) * | 2023-10-13 | 2023-11-14 | 苏州市元让超声科技有限公司 | Circulation filtration formula ultrasonic cleaner |
| CN117046818B (en) * | 2023-10-13 | 2024-04-05 | 苏州市元让超声科技有限公司 | Circulation filtration formula ultrasonic cleaner |
| CN118084106A (en) * | 2024-04-23 | 2024-05-28 | 威海英卡瑞环保科技股份有限公司 | Centralized processing equipment for paint sewage |
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Legal Events
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190605 Address after: Room 1406, Block A, World Trade Center, Software Park, East of Weixian Middle Road, North of Healthy East Street, Weifang High-tech Zone, Shandong Province, 261000 Patentee after: Shandong Ruishen Mechanical and Electrical Technology Co., Ltd. Address before: 266000 meters east of Qianfoshan Community Residential Committee, Hongdao Street, Hongdao Economic Zone, Chengyang District, Qingdao City, Shandong Province Patentee before: Qingdao chuanggao century Mdt InfoTech Ltd |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190212 Termination date: 20210330 |