CN105107298A - Environment air cleaner with catalytic purification function - Google Patents

Environment air cleaner with catalytic purification function Download PDF

Info

Publication number
CN105107298A
CN105107298A CN201510622608.2A CN201510622608A CN105107298A CN 105107298 A CN105107298 A CN 105107298A CN 201510622608 A CN201510622608 A CN 201510622608A CN 105107298 A CN105107298 A CN 105107298A
Authority
CN
China
Prior art keywords
filter screen
box
hole
panel
screen unit
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.)
Granted
Application number
CN201510622608.2A
Other languages
Chinese (zh)
Other versions
CN105107298B (en
Inventor
叶战
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.)
Lequjia Beijing Information Technology Co ltd
Original Assignee
Chengdu Little Dan Science And Technology 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 Chengdu Little Dan Science And Technology Ltd filed Critical Chengdu Little Dan Science And Technology Ltd
Priority to CN201510622608.2A priority Critical patent/CN105107298B/en
Publication of CN105107298A publication Critical patent/CN105107298A/en
Application granted granted Critical
Publication of CN105107298B publication Critical patent/CN105107298B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Filtering Of Dispersed Particles In Gases (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)

Abstract

The invention discloses an environment air cleaner with a catalytic purification function. The environment air cleaner comprises an air bellow, a filter screen unit, a filter screen preassembling box, a filter screen replacing mechanism and a collecting box; the filter screen unit is arranged in the air bellow; the filter screen preassembling box is arranged above the air bellow; the filter screen replacing mechanism is arranged on the upper portion of the filter screen preassembling box; the collecting box is arranged on the bottom of the air bellow; a standby filter screen unit is arranged in the filter screen preassembling box; and the filter screen replacing mechanism drives the standby filter screen unit in the filter screen preassembling box to change a filter screen unit in the air bellow. The environment air cleaner is convenient to use; the filter screen unit can be changed automatically; manual operation is not required; and changing difficulty is reduced.

Description

A kind of surrounding air purifier with catalytic purification function
Technical field
The present invention relates to air-treatment field, particularly, relate to a kind of surrounding air purifier with catalytic purification function.
Background technology
Air in workshop mixes more many impurity particles, the respiratory health of workman is threatened, systematic dust arrester cost is quite high, and modulability is bad, is difficult to the adjustment carrying out specific region according to the different density of population or pollution level.And use small air purifying equipment at workshop, just there is screen replacing frequency large, the not easy-operating technical problem of screen replacing, and do not change filter screen, air cleaning facility also just loses effect.Therefore at present not this air processor designed separately for similar workshop such screen replacing cycle short operating mode, existing air processor ubiquity installation exercise is wasted time and energy, and is difficult to the problem dismantled.Further, in the air in some workshop, organic pollution is had, then larger to the health threat of workman.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of surrounding air purifier with catalytic purification function, solves the technical problem that existing air processor is not suitable for workshop.
The present invention's adopted technical scheme that solves the problem is:
A kind of surrounding air purifier with catalytic purification function, comprise ventilated box, be installed on the filter screen unit of ventilated box inside, be arranged at the filter screen prefabricated box above ventilated box, the rewinding case that the filter screen being arranged at filter screen prefabricated box top is replaced mechanism and is arranged at bottom ventilated box, described ventilated box is the square box of the front and back opening surrounded by four panels, filter screen prefabricated box is the square box of the front and back opening surrounded by four panels fixedly overlaying ventilated box top, the width of ventilated box left and right directions is identical with the width on filter screen prefabricated box left and right directions, the mounting groove vertically extended for installing filter screen unit is provided with on the inwall of the left panel of ventilated box and on the inwall of right panel, the left frame of filter screen unit and left frame correspondence are installed in the mounting groove in the mounting groove on left panel and in right panel, the position that the top panel of ventilated box is positioned at the positive top of filter screen unit is provided with the upper strip through-hole passed through for filter screen unit, the position that ventilated box lower panel is positioned at the positive bottom of filter screen unit is provided with the lower strip through-hole passed through for filter screen unit, the hole wall of described lower strip through-hole is all arranged the rubber strip covering hole wall, the lower frame of filter screen unit is plugged in two rubber strip extruding clampings of lower strip through-hole, position directly over the upper strip through-hole that the bottom panel of filter screen prefabricated box is positioned at ventilated box top panel is provided with the lower strip through-hole passed through for filter screen unit, the left panel of filter screen prefabricated box and the inwall of right panel are provided with and vertically extend, with the gathering sill of the lower strip through-hole corresponding matching on filter screen prefabricated box lower panel, the top panel of filter screen prefabricated box is provided with the upper strip through-hole with the lower strip through-hole corresponding matching on filter screen prefabricated box lower panel, filter screen prefabricated box right panel is provided with the vertical through hole of the gathering sill be communicated with in right panel, vertical through hole length is in vertical direction not less than the height of filter screen unit, thus facilitate filter screen unit to pass through from this vertical through hole, and load in the gathering sill of filter screen prefabricated box, described filter screen is replaced mechanism and is comprised vertical pressing plate and the driving cylinder driving the lifting of vertical pressing plate vertical direction, the upper end of vertical pressing plate is connected with driving the piston rod of cylinder, the upper strip through-hole of filter screen prefabricated box top panel is passed in the lower end of vertical pressing plate, and the left side edge of vertical pressing plate and right side edge lay respectively in the gathering sill of filter screen prefabricated box respective side, described filter screen unit comprises the screen pack be square and the frame being arranged on screen pack four edges, described screen pack is photo-catalytic filtering screen, and photocatalyst filter is coated with nano-TiO on the net 2photocatalyst, the side being positioned at photo-catalytic filtering screen in ventilated box is provided with quartz burner.
The opening of one end of ventilated box can connect a ventilation blower, thus, containing organic waste gas when ventilated box is inner, air and the online nano-TiO of photocatalyst filter 2photocatalyst making contact is nano-TiO by quartz burner 2photocatalyst provides light energy, to have excited activity, is decomposed by the organic matter rapid oxidation in air, forms carbon dioxide, water etc. and stablizes harmless material, realize the treatment and purification to waste gas.When the filter screen unit in ventilated box just operationally, by the vertical through hole of filter screen prefabricated box, a new filter screen unit is installed in filter screen prefabricated box, this filter screen unit is directed through the lower strip through-hole of filter screen prefabricated box by gathering sill, and forms support by the filter screen unit in ventilated box to it.When the filter screen unit in ventilated box needs cleaning, the vertical pressing plate of air cylinder driven is driven to press down along gathering sill, thus by the filter screen unit below the filter screen unit extruding of top, the lower strip through-hole of the filter screen unit of below by ventilated box is extruded, the filter screen unit of top is just in time squeezed to the installation site of ventilated box simultaneously, achieve automatic replacing, easy to use.
Described rewinding case is upper shed casing, and it is positioned at immediately below ventilated box, for receiving the filter screen unit fallen from ventilated box.
In described ventilated box, vertical direction is provided with multiple filter screen unit, ventilated box is provided with the mounting groove corresponding with filter screen unit quantity, upper strip through-hole and lower strip through-hole, filter screen prefabricated box is also provided with the gathering sill corresponding with filter screen unit quantity, upper strip through-hole, lower strip through-hole and vertical through hole, filter screen prefabricated box is also provided with the filter screen corresponding with filter screen unit quantity and replaces mechanism.
To sum up, the invention has the beneficial effects as follows:
1, easy to use, can complete and automatically change filter screen unit, and not need artificial unloading, reduce replacing difficulty.
2, can carry out catalytic purification process to organic pollution, treatment effect is good.
Accompanying drawing explanation
Fig. 1 is right TV structure schematic diagram of the present invention;
Fig. 2 is that sectional structure schematic diagram is looked on the right side of the present invention;
Fig. 3 is the partial enlarged drawing in I portion in Fig. 2;
Fig. 4 is that master of the present invention looks sectional structure schematic diagram.
Mark and corresponding parts title in accompanying drawing:
1-ventilated box, 2-filter screen unit, 3-filter screen prefabricated box, 4-rewinding case, 5-mounting groove, 6-rubber strip, 7-gathering sill, 8-vertical through hole, the vertical pressing plate of 9-, 10-drives cylinder, 11-quartz burner.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, to the detailed description further of the present invention's do, but embodiments of the present invention are not limited thereto.
Embodiment:
As shown in Figure 1 to 4, a kind of surrounding air purifier with catalytic purification function, comprise ventilated box 1, be installed on the filter screen unit 2 of ventilated box 1 inside, be arranged at the filter screen prefabricated box 3 above ventilated box 1, the rewinding case 4 that the filter screen being arranged at filter screen prefabricated box 3 top is replaced mechanism and is arranged at bottom ventilated box 1, described ventilated box 1 is the square box of the front and back opening surrounded by four panels, filter screen prefabricated box 3 is the square box of the front and back opening surrounded by four panels fixedly overlaying ventilated box 1 top, the width of ventilated box 1 left and right directions is identical with the width on filter screen prefabricated box 3 left and right directions, the mounting groove 5 vertically extended for installing filter screen unit 2 is provided with on the inwall of the left panel of ventilated box 1 and on the inwall of right panel, the left frame of filter screen unit 2 and left frame correspondence are installed in the mounting groove 5 in the mounting groove 5 on left panel and in right panel, the position that the top panel of ventilated box 1 is positioned at the positive top of filter screen unit 2 is provided with the upper strip through-hole passed through for filter screen unit 2, the position that ventilated box 1 lower panel is positioned at the positive bottom of filter screen unit 2 is provided with the lower strip through-hole passed through for filter screen unit 2, the hole wall of described lower strip through-hole is all arranged the rubber strip 6 covering hole wall, the lower frame of filter screen unit 2 is plugged in two rubber strips 6 extruding clampings of lower strip through-hole, position directly over the upper strip through-hole that the bottom panel of filter screen prefabricated box 3 is positioned at ventilated box 1 top panel is provided with the lower strip through-hole passed through for filter screen unit 2, the left panel of filter screen prefabricated box 3 and the inwall of right panel are provided with and vertically extend, with the gathering sill 7 of the lower strip through-hole corresponding matching on filter screen prefabricated box 3 lower panel, the top panel of filter screen prefabricated box 3 is provided with the upper strip through-hole with the lower strip through-hole corresponding matching on filter screen prefabricated box 3 lower panel, filter screen prefabricated box 3 right panel is provided with the vertical through hole 8 of the gathering sill 7 be communicated with in right panel, vertical through hole 8 length is in vertical direction not less than the height of filter screen unit 2, thus facilitate filter screen unit 2 to pass through from this vertical through hole 8, and load in the gathering sill 7 of filter screen prefabricated box 3, described filter screen is replaced mechanism and is comprised vertical pressing plate 9 and the driving cylinder 10 driving the lifting of vertical pressing plate 9 vertical direction, the upper end of vertical pressing plate 9 is connected with driving the piston rod of cylinder 10, the upper strip through-hole of filter screen prefabricated box 3 top panel is passed in the lower end of vertical pressing plate 9, and the left side edge of vertical pressing plate 9 and right side edge lay respectively in the gathering sill 7 of filter screen prefabricated box 3 respective side, described filter screen unit 2 comprises the screen pack be square and the frame being arranged on screen pack four edges, described screen pack is photo-catalytic filtering screen, photocatalyst filter is coated with nano-TiO on the net 2photocatalyst, the side being positioned at photo-catalytic filtering screen in ventilated box 1 is provided with quartz burner 11.
The opening of one end of ventilated box 1 can connect a ventilation blower, thus, containing organic waste gas when ventilated box 1 is inner, air and the online nano-TiO of photocatalyst filter 2photocatalyst making contact is nano-TiO by quartz burner 11 2photocatalyst provides light energy, to have excited activity, is decomposed by the organic matter rapid oxidation in air, forms carbon dioxide, water etc. and stablizes harmless material, realize the treatment and purification to waste gas.When the filter screen unit 2 in ventilated box 1 just operationally, the filter screen unit 2 that in filter screen prefabricated box 3, installation one is new is thought by the vertical through hole 8 of filter screen prefabricated box 3, this filter screen unit 2 is directed through the lower strip through-hole of filter screen prefabricated box 3 by gathering sill 7, and forms support by the filter screen unit 2 in ventilated box 1 to it.When the filter screen unit 2 in ventilated box 1 needs cleaning, cylinder 10 is driven to drive vertical pressing plate 9 to press down along gathering sill 7, thus the filter screen unit 2 of below is extruded by the filter screen unit 2 of top, the lower strip through-hole of the filter screen unit 2 of below by ventilated box 1 is extruded, the filter screen unit 2 of top is just in time squeezed to the installation site of ventilated box 1 simultaneously, achieve automatic replacing, easy to use.
Described rewinding case 4 is upper shed casing, and it is positioned at immediately below ventilated box 1, for receiving the filter screen unit 2 fallen from ventilated box 1.
In described ventilated box 1, vertical direction is provided with multiple filter screen unit 2, ventilated box 1 is provided with the mounting groove 5 corresponding with filter screen unit 2 quantity, upper strip through-hole and lower strip through-hole, filter screen prefabricated box 3 is also provided with the gathering sill 7 corresponding with filter screen unit 2 quantity, upper strip through-hole, lower strip through-hole and vertical through hole 8, filter screen prefabricated box 3 is also provided with the filter screen corresponding with filter screen unit 2 quantity and replaces mechanism.
As mentioned above, the present invention can be realized preferably.

Claims (2)

1. one kind has the surrounding air purifier of catalytic purification function, it is characterized in that, comprise ventilated box (1), be installed on the filter screen unit (2) that ventilated box (1) is inner, be arranged at the filter screen prefabricated box (3) of ventilated box (1) top, the filter screen being arranged at filter screen prefabricated box (3) top is replaced mechanism and is arranged at the rewinding case (4) of ventilated box (1) bottom, described ventilated box (1) is the square box of the front and back opening surrounded by four panels, filter screen prefabricated box (3) is the square box of the front and back opening surrounded by four panels fixedly overlaying ventilated box (1) top, the width of ventilated box (1) left and right directions is identical with the width on filter screen prefabricated box (3) left and right directions, the mounting groove (5) vertically extended for installing filter screen unit (2) is provided with on the inwall of the left panel of ventilated box (1) and on the inwall of right panel, the left frame of filter screen unit (2) and left frame correspondence are installed in the mounting groove (5) in the mounting groove (5) on left panel and in right panel, the position that the top panel of ventilated box (1) is positioned at the positive top of filter screen unit (2) is provided with the upper strip through-hole passed through for filter screen unit (2), the position that ventilated box (1) lower panel is positioned at the positive bottom of filter screen unit (2) is provided with the lower strip through-hole passed through for filter screen unit (2), the hole wall of described lower strip through-hole is all arranged the rubber strip (6) covering hole wall, the lower frame of filter screen unit (2) is plugged in two rubber strip (6) extruding clampings of lower strip through-hole, position directly over the upper strip through-hole that the bottom panel of filter screen prefabricated box (3) is positioned at ventilated box (1) top panel is provided with the lower strip through-hole passed through for filter screen unit (2), the left panel of filter screen prefabricated box (3) and the inwall of right panel are provided with and vertically extend, with the gathering sill (7) of the lower strip through-hole corresponding matching on filter screen prefabricated box (3) lower panel, the top panel of filter screen prefabricated box (3) is provided with the upper strip through-hole with the lower strip through-hole corresponding matching on filter screen prefabricated box (3) lower panel, filter screen prefabricated box (3) right panel is provided with the vertical through hole (8) of the gathering sill (7) be communicated with in right panel, vertical through hole (8) length is in vertical direction not less than the height of filter screen unit (2), described filter screen is replaced mechanism and is comprised vertical pressing plate (9) and the driving cylinder (10) driving the lifting of vertical pressing plate (9) vertical direction, the upper end of vertical pressing plate (9) is connected with driving the piston rod of cylinder (10), the upper strip through-hole of filter screen prefabricated box (3) top panel is passed in the lower end of vertical pressing plate (9), and the left side edge of vertical pressing plate (9) and right side edge lay respectively in the gathering sill (7) of filter screen prefabricated box (3) respective side, described filter screen unit (2) comprises the screen pack be square and the frame being arranged on screen pack four edges, described screen pack is photo-catalytic filtering screen, photocatalyst filter is coated with nano-TiO on the net 2photocatalyst, the side being positioned at photo-catalytic filtering screen in ventilated box (1) is provided with quartz burner (11).
2. a kind of surrounding air purifier with catalytic purification function according to claim 1, is characterized in that, described rewinding case (4) is upper shed casing, and it is positioned at immediately below ventilated box (1).
CN201510622608.2A 2015-09-28 2015-09-28 Environment air cleaner with catalytic purification function Expired - Fee Related CN105107298B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510622608.2A CN105107298B (en) 2015-09-28 2015-09-28 Environment air cleaner with catalytic purification function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510622608.2A CN105107298B (en) 2015-09-28 2015-09-28 Environment air cleaner with catalytic purification function

Publications (2)

Publication Number Publication Date
CN105107298A true CN105107298A (en) 2015-12-02
CN105107298B CN105107298B (en) 2017-03-22

Family

ID=54655542

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510622608.2A Expired - Fee Related CN105107298B (en) 2015-09-28 2015-09-28 Environment air cleaner with catalytic purification function

Country Status (1)

Country Link
CN (1) CN105107298B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108452672A (en) * 2018-03-15 2018-08-28 苏州奥科德瑞智能科技有限公司 A kind of smoke eliminator
CN109464864A (en) * 2018-12-28 2019-03-15 启明星宇节能科技股份有限公司 Filter screen cleaning and replacing equipment for flue gas pipeline
CN109731448A (en) * 2019-02-26 2019-05-10 郑州常春藤环保科技有限公司 An integrated VOCs treatment device combined with excimer radiation
CN110479722A (en) * 2019-08-20 2019-11-22 广东天赐湾实验室装备制造有限公司 Safety and energy saving laboratory fume hood circulation system

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009041493A1 (en) * 2007-09-26 2009-04-02 Sintokogio, Ltd. Cartridge-filter type dust collector, and method for removing cartridge filter from the cartridge-filter type dust collector
CN201631734U (en) * 2009-06-29 2010-11-17 韩光荣 Gas disinfection and deodorization device
US20110225939A1 (en) * 2010-03-21 2011-09-22 Angela Loggins Clean screen air filtration system
CN202113707U (en) * 2011-06-09 2012-01-18 上海康进医疗器械有限公司 Air purifier
WO2012018244A1 (en) * 2010-08-03 2012-02-09 Eco-Nano Pte Ltd A filter and device for treating air
CN203336798U (en) * 2013-07-03 2013-12-11 上海古鳌电子科技股份有限公司 Air purifier with detachable filter nets
CN204522749U (en) * 2015-03-06 2015-08-05 钟德平 Photochemical catalytic oxidation organic waste gas treatment device
CN204555093U (en) * 2015-04-12 2015-08-12 王永春 A kind of catalytic degradation ventilation equipment
CN205014498U (en) * 2015-09-28 2016-02-03 成都小蛋科技有限公司 Device with organic waste gas processing capacity

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009041493A1 (en) * 2007-09-26 2009-04-02 Sintokogio, Ltd. Cartridge-filter type dust collector, and method for removing cartridge filter from the cartridge-filter type dust collector
CN201631734U (en) * 2009-06-29 2010-11-17 韩光荣 Gas disinfection and deodorization device
US20110225939A1 (en) * 2010-03-21 2011-09-22 Angela Loggins Clean screen air filtration system
WO2012018244A1 (en) * 2010-08-03 2012-02-09 Eco-Nano Pte Ltd A filter and device for treating air
CN202113707U (en) * 2011-06-09 2012-01-18 上海康进医疗器械有限公司 Air purifier
CN203336798U (en) * 2013-07-03 2013-12-11 上海古鳌电子科技股份有限公司 Air purifier with detachable filter nets
CN204522749U (en) * 2015-03-06 2015-08-05 钟德平 Photochemical catalytic oxidation organic waste gas treatment device
CN204555093U (en) * 2015-04-12 2015-08-12 王永春 A kind of catalytic degradation ventilation equipment
CN205014498U (en) * 2015-09-28 2016-02-03 成都小蛋科技有限公司 Device with organic waste gas processing capacity

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108452672A (en) * 2018-03-15 2018-08-28 苏州奥科德瑞智能科技有限公司 A kind of smoke eliminator
CN109464864A (en) * 2018-12-28 2019-03-15 启明星宇节能科技股份有限公司 Filter screen cleaning and replacing equipment for flue gas pipeline
CN109731448A (en) * 2019-02-26 2019-05-10 郑州常春藤环保科技有限公司 An integrated VOCs treatment device combined with excimer radiation
CN109731448B (en) * 2019-02-26 2021-05-11 郑州常春藤环保科技有限公司 An integrated VOCs treatment device combined with excimer radiation
CN110479722A (en) * 2019-08-20 2019-11-22 广东天赐湾实验室装备制造有限公司 Safety and energy saving laboratory fume hood circulation system

Also Published As

Publication number Publication date
CN105107298B (en) 2017-03-22

Similar Documents

Publication Publication Date Title
CN203036776U (en) Air purifier
CN205014498U (en) Device with organic waste gas processing capacity
CN105107298A (en) Environment air cleaner with catalytic purification function
CN110732230A (en) Air purifier and air purification device
CN109282383A (en) A kind of air purifier of detachable strainer
CN105107308A (en) Intelligent dust removing device with self-cleaning function
CN105148637A (en) Indoor air control system
CN205007761U (en) Indoor air purification system
CN106940045A (en) A kind of highly effective air dust removal and filtration garden equipment
CN205014497U (en) Centralized control's indoor gaseous adjusting device
CN205007764U (en) Automatic gaseous processing apparatus of regulation formula
CN203469676U (en) Indoor fresh air purification device
CN206831692U (en) A kind of indoor pm2.5 detections purifier
CN105115059A (en) Self-cleaning air purifying device
CN205007762U (en) Ambient air purifier
CN205007763U (en) Dust remover convenient to clearance
CN207688284U (en) A kind of channel dust haze air cleaning facility
CN209026983U (en) A kind of primary no material consumption automatically cleaning fresh air section
CN203837059U (en) Extractor hood with automatic greasy dirt degrading and cleaning functions
CN219656230U (en) Novel fresh air system for indoor use
CN217662112U (en) Filter assembly for denitration and desulfurization
CN105115044A (en) Indoor air intelligent adjustment system
CN105251287A (en) Self-adaptive intelligent air cleaning device
CN205593069U (en) Plasma type air purifier that wets
CN205402952U (en) Air filtering equipment

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20181128

Address after: Room 6216, 2nd Floor, Building 6, 51 Longgang Road, Haidian District, Beijing

Patentee after: LEQUJIA (BEIJING) INFORMATION TECHNOLOGY Co.,Ltd.

Address before: 610000 Tianhua Road, Chengdu High-tech Zone, Sichuan Province, No. 99, No. 3, No. 1 Unit, No. 5 Floor 501

Patentee before: CHENGDU IQEGG TECHNOLOGY CO.,LTD.

TR01 Transfer of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20170322

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