CN213417687U - Unpowered cleaning vehicle - Google Patents
Unpowered cleaning vehicle Download PDFInfo
- Publication number
- CN213417687U CN213417687U CN202020837567.5U CN202020837567U CN213417687U CN 213417687 U CN213417687 U CN 213417687U CN 202020837567 U CN202020837567 U CN 202020837567U CN 213417687 U CN213417687 U CN 213417687U
- Authority
- CN
- China
- Prior art keywords
- water tank
- cleaning
- cylinder
- ratchet
- garbage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 83
- 230000007246 mechanism Effects 0.000 claims abstract description 92
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 67
- 230000005540 biological transmission Effects 0.000 claims abstract description 25
- 238000007789 sealing Methods 0.000 claims description 4
- 229920001875 Ebonite Polymers 0.000 claims description 2
- 238000010408 sweeping Methods 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 244000007853 Sarothamnus scoparius Species 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 241001417527 Pempheridae Species 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Images
Landscapes
- Cleaning By Liquid Or Steam (AREA)
Abstract
The utility model discloses an unpowered cleaning vehicle for under the condition of no electric power support on solving among the prior art rural area lane, the sanitationman cleans and consumes physical power, does not have the problem of suitable laborsaving cleaning tool. The method comprises the following steps: the cleaning mechanism, the garbage can and the water tank are sequentially arranged on the rack from front to back; the cleaning mechanism comprises a cleaning roller, a ratchet mechanism and a belt transmission mechanism; the two ends of the cleaning roller are connected with a frame bearing, the rear end bearing of the frame is connected with a rear wheel, a main chain wheel is arranged on a rear wheel shaft, a frame bearing in front of the rear wheel shaft is connected with a ratchet wheel shaft, a ratchet wheel mechanism is arranged on the ratchet wheel shaft, the main chain wheel is in transmission connection with a ratchet wheel mechanism chain, and the ratchet wheel shaft is connected with the cleaning roller through a belt transmission mechanism; the garbage can is detachably connected with the rack, and the front end of the garbage can is aligned with the opening of the cleaning roller; the water tank is provided with a pressurizing mechanism, the bottom of the water tank is provided with an atomizing nozzle, and the front end of the frame is provided with a front wheel. The beneficial effects are that use manpower sparingly reduces working strength.
Description
Technical Field
The utility model relates to an sanitation technical field that keeps a public place clean especially relates to an unpowered cleaning vehicle.
Background
Road cleaning tools adopted by municipal administration road environmental sanitation departments or unit environmental sanitation departments are large-scale road sweeper generally, or tools such as broom mops and the like are adopted in a small range, the road sweeper is novel efficient cleaning equipment integrating road surface cleaning, garbage recycling and transportation, is large in size, is not suitable for cleaning in a small range, is not suitable for cleaning under outdoor unpowered conditions, and is high in noise; broom and mop, which has high labor intensity and slow cleaning speed.
Disclosure of Invention
An embodiment of the utility model provides an unpowered cleaning vehicle for under the condition of no electric power support on solving among the prior art the country lane, the sanitationman cleans and consumes physical power, does not have the problem of suitable laborsaving cleaning tool.
An embodiment of the utility model provides an unpowered cleaning vehicle, include: the garbage cleaning machine comprises a rack, a cleaning mechanism, a garbage can, a water tank, a main chain wheel, a rear wheel and a front wheel; the cleaning mechanism, the garbage can and the water tank are sequentially arranged on the rack from front to back; the cleaning mechanism comprises a cleaning roller, a ratchet mechanism and a belt transmission mechanism; the two ends of the cleaning roller are connected with a frame bearing, the rear end bearing of the frame is connected with a rear wheel, a main chain wheel is arranged on a rear wheel shaft, a frame bearing in front of the rear wheel shaft is connected with a ratchet wheel shaft, a ratchet wheel mechanism is arranged on the ratchet wheel shaft, the main chain wheel is in transmission connection with a ratchet wheel mechanism chain, and the ratchet wheel shaft is connected with the cleaning roller through a belt transmission mechanism; the garbage can is detachably connected with the rack, and the front end of the garbage can is aligned with the opening of the cleaning roller; the water tank is provided with a pressurizing mechanism, the bottom of the water tank is provided with an atomizing nozzle, and the front end of the frame is provided with a front wheel.
Preferably, the pressurizing mechanism comprises a cylinder, a cylinder piston rod and a piston; the cylinder sets up on the lateral wall upper portion that the water tank is close to the rear wheel, and cylinder one end stretches into the water tank, and the one end that stretches into the water tank sets up the first check valve that admits air to the water tank in, sets up the air inlet on the outer cylinder of water tank, sets up piston rod and piston in the cylinder, and piston rod stretches out from the air inlet, connects the piston on the piston rod of cylinder, sets up the second check valve that admits air to cylinder inside on the piston.
Preferably, the pressurizing mechanism further comprises a cylinder power mechanism, the cylinder power mechanism comprises an annular slide rail, a two-rod mechanism, a slide block and a chain transmission mechanism, the chain transmission mechanism is installed on one side face of the water tank and is close to the position of the cylinder, a driven gear of the chain transmission mechanism is connected with one end of a crank of the two-rod mechanism, the slide block is fixedly connected with the other end of a connecting rod of the two-rod mechanism, the slide block is installed in a matched mode with the annular slide rail, and the annular slide rail is fixedly connected with one end, extending.
Preferably, the ratchet mechanism is an internal meshing ratchet mechanism, and an outer edge gear of the internal meshing ratchet mechanism is assembled with the main chain wheel chain.
Preferably, the belt transmission mechanism comprises a front belt pulley, a rear belt pulley and a belt, the front belt pulley is in key connection with two ends of the cleaning roller, the rear belt pulley is in key connection with two ends of the ratchet shaft, and the front belt pulley is in belt connection with the corresponding rear belt pulley.
Preferably, the cleaning roller is provided with an annular hard brush.
Preferably, the hard rubber scraping blade inclined to be close to the ground is arranged at the edge where the machine frame and the cleaning roller are in contact with each other below the garbage can.
Preferably, a cart handle is arranged at the rear part of the water tank.
Preferably, the top of the water tank is provided with a water filling port, and the water filling port is provided with a sealing plug.
The utility model discloses beneficial effect includes: under the condition of no electric power, some rural districts or constrictive shady footpath, cleaner need not to spill water tank and broom and clean through carrying, the work of watering is once only realized cleaning directly through this unpowered cleaning cart, the pressurization of water tank and the power of cleaning the roller, all through the manpower hand push, realize the rotation of main sprocket, drive loading mechanism and cleaning roller work, the water tank pressurization makes the road surface watering more even, the raise dust has been solved, and can not lead to surface gathered water, the physical power of manpower cleaning and watering has been saved, the working strength of cleaning work has been reduced, and dustbin detachable emptys, convenience and sanitation.
Drawings
Fig. 1 is a schematic view of a first three-dimensional structure of an unpowered cleaning vehicle according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a second perspective view of the unpowered cleaning vehicle according to an embodiment of the present invention;
FIG. 3 is a schematic bottom perspective view of the unpowered cleaning cart according to an embodiment of the present invention;
FIG. 4 is a schematic cross-sectional view of an unpowered cleaning vehicle according to an embodiment of the present invention;
in the drawing, a frame 1, a rubber scraper 11, a water tank 2, a water filling port 21, an atomizing nozzle 22, a pressurizing mechanism 23, a cylinder 2301, a cylinder piston rod 2302, an annular slide rail 2303, a two-rod mechanism 2304, a slide block 2305, a piston 2306, an air inlet 2307, a first check valve 2308, a second check valve 2309, a first gas valve 2310, a second gas valve 2311, a garbage can 3, a handle 31, a main chain wheel 4, a cleaning mechanism 5, a ratchet mechanism 51, a cleaning roller 52, a rear wheel 6, a front wheel 7 and a cart handle 8.
Detailed Description
In order to provide a non-powered cleaning tool which is fast and convenient for one time and saves physical strength, the following description is made in conjunction with the attached drawings of the specification to describe the preferred embodiment of the invention.
Referring to fig. 1-4, an embodiment of the present invention provides an unpowered cleaning vehicle, including: the garbage cleaning machine comprises a frame 1, a cleaning mechanism 5, a garbage can 3, a water tank 2, a main chain wheel 4, a rear wheel 6 and a front wheel 7; the cleaning mechanism 5, the dustbin 3 and the water tank 2 are sequentially arranged on the frame 1 from front to back; the cleaning mechanism 5 comprises a cleaning roller 52, a ratchet mechanism 51 and a belt transmission mechanism; two ends of the cleaning roller 52 are connected with a bearing of the frame 1, a bearing at the rear end of the frame 1 is connected with a rear wheel 6, a main chain wheel 4 is arranged on a rear wheel 6 shaft, a bearing on the frame 1 in front of the rear wheel 6 shaft is connected with a ratchet shaft, a ratchet mechanism 51 is arranged on the ratchet shaft, the main chain wheel 4 is in chain transmission connection with the ratchet mechanism 51, and the ratchet shaft is connected with the cleaning roller 52 through a belt transmission mechanism; the dustbin 3 is detachably connected with the frame 1, and the front end of the dustbin 3 is rightly opposite to the opening of the cleaning roller 52; the water tank 2 is provided with a pressurizing mechanism 23, the bottom of the water tank is provided with an atomizing nozzle 22, and the front end of the frame 1 is provided with a front wheel 7.
Specifically, the whole cleaning vehicle comprises two parts, wherein one part is a sweeping mechanism 5, and the other part is a water spraying mechanism; the cleaning mechanism 5 mainly comprises a cleaning roller 52, a transmission mechanism of the cleaning roller 52 and a dustbin 3 for collecting garbage at the rear end, an annular hard brush is arranged on the cleaning roller 52, a belt transmission mechanism of the cleaning roller 52 comprises a front belt pulley, a rear belt pulley and a belt, the front belt pulley is in key connection with the two ends of the cleaning roller 52, the rear belt pulley is in key connection with the two ends of a ratchet shaft, and the front belt pulley is in belt connection with the corresponding rear belt pulley. The rear belt pulley is driven by a ratchet shaft, a ratchet mechanism 51 is arranged on the ratchet shaft, the ratchet mechanism 51 is an internal engagement ratchet mechanism 51, and a gear on the outer edge of the internal engagement ratchet mechanism 51 is in chain assembly with the main chain wheel 4. The ratchet is driven by main sprocket 4 and can be rotated forward, when main sprocket 4 backed up, the ratchet is blocked to the pawl of ratchet, the ratchet axle stall, clean roller 52 also stops cleaning, avoid raising dust or rubbish outwards, clean roller 52 rear and 3 open-ended places butt joint dustbin 3 below frame 1 with clean the edge that roller 52 borders, set up the slope and be close to the stereoplasm rubber doctor-bar 11 on ground, can be when cleaning, in the garbage bin is received with rubbish and dust, avoid rubbish to leak from dolly frame 1 bottom. Dustbin 3 is front end open-ended rectangle box, and the box top sets up handle 31, sets up the rail of fixed dustbin 3 on the frame 1 of 2 front ends of water tank, and dustbin 3 is arranged in the rail. The bin 3 is full and can be lifted directly for dumping and then returned to the pen.
The sprinkling mechanism comprises a water tank 2 and a pressurizing mechanism 23 of the water tank 2; the pressurizing mechanism 23 includes a cylinder 2301, a cylinder piston rod 2302, and a piston 2306; the cylinder 2301 is arranged on the upper portion of the side wall of the water tank 2 close to the rear wheel 6, one end of the cylinder 2301 extends into the water tank 2, one end extending into the water tank 2 is provided with a first one-way valve 2308 for air inflow into the water tank 2, the cylinder 2301 outside the water tank 2 is provided with an air inlet 2307, the cylinder 2301 is internally provided with a cylinder piston rod 2302 and a piston 2306, the cylinder piston rod 2302 extends out from the air inlet 2307, the cylinder piston rod 2302 is connected with the piston 2306, and the piston 2306 is provided with a second one-way valve 2309 for air inflow into the cylinder 2301. When the rod of the piston 2306 is pulled out of the water tank 2, the first gas valve 2310 arranged outside the first one-way valve 2308 at the bottom of the cylinder 2301 is closed, air enters from the air inlet 2307, the second gas valve 2311 on the second one-way valve 2309 is opened by the air through the second one-way valve 2309 on the piston 2306, the air is injected into the cylinder 2301, then the rod of the piston 2306 is pushed into the water tank 2, the second gas valve 2311 on the piston 2306 is closed, and the first gas valve 2310 outside the first one-way valve 2308 is pushed open by the air in the cylinder 2301 to press the air into the water tank 2.
Reciprocating motion of cylinder piston rod 2302 is accomplished through cylinder 2301 power unit, cylinder 2301 power unit includes annular slide rail 2303, two pole mechanisms 2304, slider 2305 and chain drive mechanism, chain drive mechanism installs 2 sides in the water tank, be close to the position of cylinder 2301, chain drive mechanism's driven gear is connected with two pole mechanisms 2304's crank one end, two pole mechanisms 2304's connecting rod other end fixed connection slider 2305, slider 2305 and annular slide rail 2303 cooperation are installed, annular slide rail 2303 fixed connection is in the one end that cylinder piston rod 2302 stretches out air inlet 2307. When the rear wheel 6 drives the main chain wheel 4 to rotate, the driven gear of the chain transmission mechanism is driven to rotate, the crank which drives the two-rod mechanism 2304 is driven to move in a whole circle in the rotating process, the crank drives the connecting rod, when the sliding block 2305 on the connecting rod moves in the annular sliding rail 2303, the annular sliding rail 2303 is driven to do linear reciprocating motion, and the annular sliding rail 2303 drives the cylinder piston rod 2302 to do linear reciprocating motion. A trolley handle 8 is arranged at the rear part of the water tank 2. The top of the water tank 2 is provided with a water filling opening 21, and the water filling opening 21 is provided with a sealing plug.
When the cart handle 8 is manually held and pushed forwards, the rear wheel 6 drives the main chain wheel 4 to rotate forwards, the main chain wheel 4 drives the ratchet mechanism 51 to rotate forwards, the ratchet shaft drives the belt transmission mechanisms at the two ends to rotate, and the belt transmission mechanisms drive the cleaning rollers 52 to roll forwards to clean garbage inwards and sweep the garbage into the garbage can 3 for temporary storage; meanwhile, the driving gear of the chain drive mechanism that the main chain wheel 4 drives the water tank 2 rotates forward, driven gear rotates forward, drive crank rotation, the connecting rod drives the circular orbit and is reciprocating motion, circular orbit drives the cylinder piston rod 2302, inwards pressurize, during the increase of incasement water pressure, can outwards spray water, there is atomizing nozzle water tank 2 bottom, the water under high pressure is the high velocity air current in the atomizing nozzle in addition, spout rivers atomizing, water tank 2 is sealed can be guaranteed to the sealing plug of filler 21, a water tank 2 is added water for supply tank 2. When the garbage is pushed backwards, water can be sprayed, and the reverse rotation of the cleaning roller 52 is avoided, so that the garbage is dragged out.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. An unpowered cleaning cart, comprising: the garbage cleaning machine comprises a rack, a cleaning mechanism, a garbage can, a water tank, a main chain wheel, a rear wheel and a front wheel; the cleaning mechanism, the garbage can and the water tank are sequentially arranged on the rack from front to back; the cleaning mechanism comprises a cleaning roller, a ratchet mechanism and a belt transmission mechanism; the two ends of the cleaning roller are connected with a frame bearing, the rear end bearing of the frame is connected with a rear wheel, a main chain wheel is arranged on a rear wheel shaft, a frame bearing in front of the rear wheel shaft is connected with a ratchet wheel shaft, a ratchet wheel mechanism is arranged on the ratchet wheel shaft, the main chain wheel is in transmission connection with a ratchet wheel mechanism chain, and the ratchet wheel shaft is connected with the cleaning roller through a belt transmission mechanism; the garbage can is detachably connected with the rack, and the front end of the garbage can is aligned with the opening of the cleaning roller; the water tank is provided with a pressurizing mechanism, the bottom of the water tank is provided with an atomizing nozzle, and the front end of the frame is provided with a front wheel.
2. The unpowered cleaning vehicle of claim 1, wherein the pressurization mechanism comprises a cylinder, a cylinder piston rod, and a piston; the cylinder sets up on the lateral wall upper portion that the water tank is close to the rear wheel, and cylinder one end stretches into the water tank, and the one end that stretches into the water tank sets up the first check valve that admits air to the water tank in, sets up the air inlet on the outer cylinder of water tank, sets up piston rod and piston in the cylinder, and piston rod stretches out from the air inlet, connects the piston on the piston rod of cylinder, sets up the second check valve that admits air to cylinder inside on the piston.
3. The unpowered cleaning vehicle according to claim 2, wherein the pressurizing mechanism further comprises a cylinder power mechanism, the cylinder power mechanism comprises an annular slide rail, a two-bar mechanism, a slide block and a chain transmission mechanism, the chain transmission mechanism is mounted on one side surface of the water tank and is close to the cylinder, a driven gear of the chain transmission mechanism is connected with one end of a crank of the two-bar mechanism, the slide block is fixedly connected with the other end of a connecting rod of the two-bar mechanism, the slide block is mounted in a matched manner with the annular slide rail, and the annular slide rail is fixedly connected with one end of a piston rod of the cylinder.
4. An unpowered cleaning vehicle according to claim 1 wherein the ratchet mechanism is an inter-engaging ratchet mechanism, and the outer rim gear of the inter-engaging ratchet mechanism is engaged with the main sprocket chain.
5. The unpowered cleaning vehicle as recited in claim 1, wherein the belt transmission mechanism includes a front belt pulley, a rear belt pulley and a belt, the front belt pulley is keyed to both ends of the cleaning roller, the rear belt pulley is keyed to both ends of the ratchet shaft, and the front belt pulley is connected to the corresponding rear belt pulley belt.
6. An unpowered cleaning vehicle according to claim 1 wherein the sweeping roller is provided with annular rigid bristles.
7. The unpowered cleaning vehicle according to claim 1, wherein the garbage can is a rectangular box with an opening at the front end, a handle is arranged on the top of the box, a fence for fixing the garbage can is arranged on the frame at the front end of the water tank, and the garbage can is arranged in the fence.
8. An unpowered cleaning vehicle as claimed in claim 1 wherein the edge of the frame below the dustbin bordering the scrub roller is provided with a hard rubber wiper inclined to the ground.
9. The unpowered cleaning vehicle of claim 1, wherein a cart handle is provided at a rear of the tank.
10. The unpowered cleaning vehicle according to claim 1, wherein a water filling port is arranged at the top of the water tank, and a sealing plug is arranged on the water filling port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020837567.5U CN213417687U (en) | 2020-05-19 | 2020-05-19 | Unpowered cleaning vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020837567.5U CN213417687U (en) | 2020-05-19 | 2020-05-19 | Unpowered cleaning vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213417687U true CN213417687U (en) | 2021-06-11 |
Family
ID=76224740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020837567.5U Expired - Fee Related CN213417687U (en) | 2020-05-19 | 2020-05-19 | Unpowered cleaning vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213417687U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113479526A (en) * | 2021-06-23 | 2021-10-08 | 利辛县江淮扬天汽车有限公司 | But vehicle is cleared to solid-liquid separation's new forms of energy rubbish |
| CN113658498A (en) * | 2021-08-16 | 2021-11-16 | 许桂娟 | Medical demonstration model and use method thereof |
| CN114562173A (en) * | 2022-01-24 | 2022-05-31 | 广东玫瑰岛卫浴有限公司 | Durable translation door of moving mechanism |
| CN116289730A (en) * | 2023-04-23 | 2023-06-23 | 南通绿能环保设备有限公司 | Energy-saving sweeping vehicle capable of adjusting humidity |
-
2020
- 2020-05-19 CN CN202020837567.5U patent/CN213417687U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113479526A (en) * | 2021-06-23 | 2021-10-08 | 利辛县江淮扬天汽车有限公司 | But vehicle is cleared to solid-liquid separation's new forms of energy rubbish |
| CN113658498A (en) * | 2021-08-16 | 2021-11-16 | 许桂娟 | Medical demonstration model and use method thereof |
| CN114562173A (en) * | 2022-01-24 | 2022-05-31 | 广东玫瑰岛卫浴有限公司 | Durable translation door of moving mechanism |
| CN116289730A (en) * | 2023-04-23 | 2023-06-23 | 南通绿能环保设备有限公司 | Energy-saving sweeping vehicle capable of adjusting humidity |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN213417687U (en) | Unpowered cleaning vehicle | |
| CN200999333Y (en) | Clearing apparatus of cleaning machine | |
| CN204765428U (en) | Hand -pushing multifunction cleaning vehicle | |
| CN210151637U (en) | Hand-push type sweeper | |
| CN110158515B (en) | Sanitation device with garbage sweeping and storing functions | |
| CN201861583U (en) | Floor cleaner | |
| CN204780731U (en) | Road cleaning machine | |
| CN201343710Y (en) | Multifunctional sanitation sweeper | |
| CN201227245Y (en) | Hand push type floor-sweeping, dust-sucking and floor-mopping one-piece machine | |
| CN114472280B (en) | Surface cleaning system for photovoltaic panel and cleaning method thereof | |
| CN207590615U (en) | One kind sweeps suction and drags all-in-one machine | |
| CN206319288U (en) | A kind of road surface sweeper | |
| CN112982250A (en) | Road cleaning equipment for energy-saving environmental sanitation workers | |
| CN213159314U (en) | Line drawing device for plastic track | |
| CN211571549U (en) | Construction road surface cleaning device | |
| CN213233272U (en) | Multi-functional road silt cleaning device for municipal administration | |
| CN201236329Y (en) | Hand pulling type garbage clearing carriage | |
| CN201265146Y (en) | Hand pulling type automatic sweeper | |
| CN1320211C (en) | Multifunctional sweeper | |
| CN2899698Y (en) | Floor cleaner | |
| CN107928559B (en) | Hospital cleans equipment with ground | |
| CN202170483U (en) | Electric sweeping-cleaning multifunctional vehicle | |
| CN202925499U (en) | Rolling type garbage cleaning truck combing sweeping and mopping together | |
| CN201019680Y (en) | Floor cleaner combined with floor wiping device having floor sweeping function | |
| CN201258466Y (en) | Hand-push type sweeper |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210611 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |