CN2361692Y - High-pressure pneumatic pipeline cleaning and dredging machine - Google Patents
High-pressure pneumatic pipeline cleaning and dredging machine Download PDFInfo
- Publication number
- CN2361692Y CN2361692Y CN 98219195 CN98219195U CN2361692Y CN 2361692 Y CN2361692 Y CN 2361692Y CN 98219195 CN98219195 CN 98219195 CN 98219195 U CN98219195 U CN 98219195U CN 2361692 Y CN2361692 Y CN 2361692Y
- Authority
- CN
- China
- Prior art keywords
- air
- pipeline
- blockage body
- rubber
- high pressure
- 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
Images
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model relates to a high-pressure pneumatic type pipeline cleaning and dredging machine, wherein, a power device of which is composed of a high-pressure gas cylinder, a switch, a barometer, a gas path (gas outlet) quick joint, etc.; a connecting device is composed of a gas path (gas inlet) quick joint, a multifunction air pipeline, a slide block, a baffle block, a rubber plugging body, a drawing ring of a fixing plate, etc. The utility model is suitable for the cleaning and the dredging work of any kinds of the pipelines with any calibers, and has the advantages of small vibration, low noise, no need of a power supply, low cost, convenient and simple structure, and simple manufacturing technique, being applied to industrialization and specialization.
Description
The utility model relates to a kind of high pressure gas dynamic formula pipeline cleaning dredger.
In the prior art,, mainly adopt mechanical type cleaning dredging method or pneumatic type cleaning, dredging method for the cleaning dredging pipeline.
The mechanical type dredging machine, the restriction in place caused inconvenience when general volume was subjected to using more greatly; Be subjected to what the restriction of length, elbow of pipeline again, the scale removal process complexity.Can produce high noisy, high vibration during use.In real work, have and still adopt the method for manually utilizing the mediation of bamboo bar, cleaning many time, labour intensity is big, efficient is low, and blocked pipe end is in open state during operation, and peculiar smell flies away everywhere, and effect is undesirable.
Other has some technology, has adopted air force to make the power source of dredger.
A kind of " the air-compression type pipe-dredging is cleared up dual-purpose machine " arranged, utilize compressed-air actuated strength, blow down ducted foreign material.But the air compressor machine that it utilized and a series of additional pressure accumulation, step-down, increasing apparatus, complex structure, bulky; In the use because the work of air compressor and instantaneous release of pressure etc. can produce big noise and vibration; This technology is also failed the connectivity problem of solving device itself and blocked pipe end place well, can not seal well; The junction can not the quick detach fast-assembling; Must use power supply in the operation, not have power supply or do not allowing to use high-power electrical equipment and the unmatched place of electric wiring then can't be used.
A kind of technology is arranged again, be " powerful pipe-dredging rifle ", utilize inflator to inflate, pressure is less, efficient is relatively poor, also fails simultaneously effectively to solve the connectivity problem of this device and pipeline port, is unsuitable for industrialization and specialized the use.
Also have a kind of technology, be " manual pneumatic formula pipeline drainer ", only the leather cup with traditional plunger improves, and does not use high-pressure air source to do power.
Other has a technology, is " air force pipeline dredging device ", only is with a circular elastic mounting, utilizes artificial strength push-and-pull rubber cushion to move in pipeline, and the forward positive negative pressure of the air that produces with post-tensioning that pushes away is impacted obstruction.This technology is not used the pressure-air source that is used as power, and fails to break away from the operating principle of traditional-family with " carrying son ".Only rubber cushion shape, elastic mounting device and handle etc. a little changes have been done.Though cost is cheaper, blocked pipe head straight-tube portion need be longer when using, and could satisfy the stroke requirement that rubber cushion moves in pipeline, to produce pressure; The positive negative pressure absolute value that only depends on rubber cushion to seesaw in pipeline to be produced is less, and the mediation effect is undesirable; Can not satisfy industrialization and specialized needs.Rubber cushion bears big friction because move back and forth in pipeline, can not produce sealing function so damage easily, needs frequently to change.
The purpose of this utility model is to have overcome the deficiencies in the prior art part, but utilizes the easy pressure regulation pressure-air that the gets source that is used as power, and has solved the connectivity problem of blocked pipe end and this device again, and convenient, good sealing is provided.Can provide that a kind of strength is big, noise is little, can Fast Installation and dismounting, do not use the pipeline cleaning device of power supply.Simple in structure, volume is little, easy to use, with low cost, efficient is high.
Solution of the present utility model is made up of power set and linkage two parts.Can change the steel cylinder volume size, can select the power setting part of compressed air pressure arbitrarily and can adjust multi-functional air pipeline length, can adjust under the linkage acting in conjunction of rubber blockage body size and shape, having constituted one is power source with compressed air, can be directly connected to the different shape pipe end, and push rubber blockage body formation sealing, surgery the high pressure gas dynamic formula pipeline cleaning dredger of obstruction in the pipeline.
Power setting part of the present utility model is by formations such as gas cylinder, gas cylinder switch, hard air pipe line, hard air pipe line switch, air gauge, air hose, gas circuit (giving vent to anger) snap joints, hard air pipe line can be fixed to the fixture of gas cylinder or directly be fixed on the gas cylinder, and the junction of air hose and other device is fixed with the clamp of endless belt butterfly nut.
Linkage of the present utility model part by gas circuit (air inlet) snap joint 1., the multi-functional air pipeline 2., go up block 3., slide block 4., down block 5., rubber blockage body upper mounted plate 8., the rubber blockage body 9., rubber blockage body bottom plate 10., and backguy , draw ring , hold-doun nut and pad 7., formation such as .
The middle part of multi-functional air pipe head is empty, and the voltage supply air that contracts passes through; The outside diverse location of pipeline is made screw thread, miscellaneous part in miscellaneous part or the permanent connection in the connection.
In the use, give and in steel cylinder, charge into earlier compressed air (pressure is decided by steel cylinder intensity and required pressure), the rubber blockage body is placed on the port of blocked pipeline, utilize slide block 4. back and forth downwards to impact link stopper strength 5., make the multi-functional air pipeline 2. drive rubber blockage body upper mounted plate 8. reach bottom plate 10. and the final rubber blockage body that drives 9. move to blocked pipe end depths.Be squeezed into blocked pipe end after the rubber blockage body is stressed, and form excellent sealing, prevent that gas or liquid from spilling from here.Gas circuit (giving vent to anger) snap joint of power set is connected with gas circuit (air inlet) snap joint of linkage, open the switch of gas cylinder and hard air pipe line, compressed air is flowed out by steel cylinder, and can monitor air gauge, adjust the switch aperture and control the air pressure size.High pressure draught pours blocked pipeline via multi-functional air pipeline cavity, impacts on obstruction, up to obstruction is washed away, blows blocked pipeline logical.
After mediation finishes, close gas cylinder, the gas path joint of power set and linkage is thrown off, utilize slide block 4. to impact block strength 3., make from the function air duct 2. drive rubber blockage body upper mounted plate 8. reach bottom plate 10. and the final rubber blockage body that drives 9. break away from blocked pipe end.
Accompanying drawing is a linkage part schematic diagram:
1. gas circuit (air inlet) snap joint
2. multi-functional air pipeline
3. go up block
4. slide block
5. descend block
6. available herein engage thread connects
7. hold-down nut and pad (spring shim) are adorned in choosing
8. rubber blockage body upper mounted plate
9. rubber blockage body
10. rubber blockage body bottom plate
11. choosing dress hold-down nut and pad (spring shim)
12. draught line
13. tow lug
Good effect of the present utility model is:
1. be applicable to the pipeline cleaning dredging work of any bore.
2. cleaning dredging effect is not subjected to length, elbow what, the port straight sections of blocked pipeline Divide the factor affecting such as length, the rubber blockage body is designed to various shape then can be used for all types The pipeline of the mouth of pipe can both make things convenient for, finish efficiently cleaning for the pipeline of any complexity.
3. utilize pressure-air to blow down tamper, efficient height, effective. Gas cylinder stores gas Pressure can reach 1000PSI (pound/every square inch) or higher, and so big pressure is used for blowing down Tamper, efficient are very high, and effect is better.
4. do not need power supply, both can overcome Active workings does not have the constant of power supply, can be wide yet The general occasion that is applied to be not suitable for making electrical installation, as on the aircraft, computer floor, accurate instrument Near the device.
5. with low cost. The metal parts such as the gas cylinder of this device, block, slide block can be long-term Use; If provide air pump for oneself, it is very low then to pour into the compressed air cost to gas cylinder, and outsourcing was pressed The contracting air is also very cheap.
6. features simple structure, manufacturing process are simple, be easy to promote, and gas cylinder, switch, air pressure Table, air flexible pipe etc. all can directly be buied.
7. do not resemble and produce bigger vibration and noise the mechanical chipping device.
8. use small-sized gas cylinder then to be easy to carry very much, single can fulfiling assignment, less in the operation to surrounding environment influence.
9. rubber blockage body consumable accessory is convenient to change, and has improved operating efficiency.
10. filled up the blank of the unformed equipment of China's civil aircraft upper pipeline cleaning work.
Embodiment 1: in power set: (the steel cylinder volume size can be selected arbitrarily will to pour into the gas cylinder of gases at high pressure, stored Compressed Gas pressure can be selected arbitrarily) switch close, hard air pipe line in the connection (hard air pipe line can be metal tubes or duroplasts pipelines such as iron, steel), air pipe line switch on the hard air pipe line cuts out (this switch plays the secondary safety effect, prevent that high pressure draught out of control from washing out air gauge etc.), be connected with air gauge again.Connect behind the air gauge and go up air hose, the terminal connection of air hose gone up gas circuit (giving vent to anger) snap joint.Air hose and other parts junction are fixing with hard card of endless belt butterfly nut, are convenient to quick replacing.Hard card can be that the metal clamps of systems such as iron, steel also can be the duroplasts clamp.
2. 1. gas circuit snap joint be connected with the multi-functional air pipeline in linkage, hollow multi-functional air pipeline be equipped with on 2. block 3., slide block 4., down block 5., rubber blockage body upper mounted plate 8., hold-down nut and pad 7., the rubber blockage body 9., rubber blockage body bottom plate 10., hold-down nut and pad .Connections such as multi-functional air pipeline and miscellaneous part can also can weld with being threaded, bonding, common car system.During operation, 9. the hand-held multifunctional air duct is placed on blocked pipe end place with the rubber blockage body, utilize slide block 4. back and forth to impact block strength 5. downwards, make the multi-functional air pipeline 2. drive rubber blockage body upper mounted plate 8., bottom plate 10. and the final rubber blockage body that drives 9. move to blocked pipeline depths, be squeezed into blocked pipe end after the rubber blockage body is stressed, form excellent sealing, prevent that gas or liquid from spilling from here.Gas circuit (giving vent to anger) snap joint of power set is connected with gas circuit (air inlet) snap joint of linkage, open gas cylinder and hard air pipe line switch, compressed air is flowed out by steel cylinder, and the monitoring air gauge, adjust the switch aperture at any time and control the air pressure size.High pressure draught is via air hose, and gas circuit snap joint flows into multi-functional air pipeline cavity, pours blocked pipeline, impacts obstruction, with blocked pipe-dredging.After the mediation, close gas cylinder, the gas circuit snap joint of power set and linkage is thrown off, utilizes slide block 4. to impact block strength 3., make the multi-functional air pipeline 2. drive rubber blockage body upper mounted plate 8., bottom plate 10. and final drive rubber blockage body break away from blocked pipe end.
The various pipelines of being cleared up can be gas pipelines, also can be fluid pipelines.
The gas cylinder volume is changeable, can select volume from 1 liter of standard steel cylinder up to 50 liters; The stored compressed air pressure of gas cylinder is changeable, can be from being slightly larger than ambient pressure up to 1,000PSI (pound/per square inch) or bigger.
Air hose is fixedlyed connected with hard card of endless belt butterfly nut with the miscellaneous part junction, makes air hose be convenient to change.
The rubber blockage body 9. and upper mounted plate 8., 10. bottom plate can make difformity, adapting to the difformity at blocked pipe end place, and enlarges the air stream outlet area, difformity can be shapes such as taper shape, truncated cone-shaped, polyhedron shape.
The rubber blockage body makes that an end is less, the other end is bigger; An end that is introduced into blocked pipe end is less.
The rubber blockage body is pressed into blocked pipe end part external diameter and equals the pipe end internal diameter.
The multi-functional air pipeline 2. go up icon 6. shown in part (following block 5. with upper mounted plate 8. between) can permanently be connected or with being threaded.
Permanent connection can be that common Vehicle Processing is made, welding.The Shi Yiduan that is threaded is an internal thread, and the other end is an external screw thread.Screw thread is with sealings such as raw material bands.
Embodiment 6
2. the multi-functional air pipeline is made of metal, with rubber blockage body upper mounted plate 8., 10. bottom plate connects, and pass the rubber blockage body 9., with the rubber blockage body 9. contact portion pushed by the rubber blockage body, tight fit forms sealing multi-functional air pipeline and 2. is made of metal, and metal can be iron, steel etc.
The multi-functional air pipeline 2. can with rubber blockage body upper mounted plate 8., 10. bottom plate link to each other with multiple mode, connected mode can be threaded, weld, common Vehicle Processing makes, also can be that hold-down nut and pad (spring shim) are also installed in sliding connection respectively additional, 2. the multi-functional air pipeline adopts external screw thread when being threaded, fixed head adopts internal thread, and the screw thread specification can be metric system, English system or gas thread.
The multi-functional air pipeline can be multiple shape, can be local or integral body be cylindrical, elliptical cylinder-shape, triangle cylindricality etc.
Embodiment 7
2. 1. gas circuit in the linkage (air inlet) snap joint can permanently be connected with the multi-functional air pipeline, also can connect with engage thread.
Permanent connection can be common Vehicle Processing manufacturing, welding.Tip side external screw thread when being threaded, pipeline end internal thread.Screw thread can be metric system, English system or gas thread, and screw thread is with sealings such as raw material bands.
5. 3. last block can be connected with the multi-functional air pipeline is 2. permanent with following block, also can be with being threaded, and permanent connection is Vehicle Processing manufacturing or welding etc. jointly, and screw thread can be metric system, English system.
5. following block can not adorned, and utilizes rubber blockage body upper mounted plate 8. to remove the block effect, can respectively or not load onto block 3. simultaneously yet, and 4. 5. following block reach slide block.
Embodiment 9
9. the rubber blockage body can install arbitrarily a draught line and tow lug additional, and draught line one end can pass the rubber blockage body and 9. 10. be connected with bottom plate, and connection can be welding, bonding etc.
Draught line one end also can not pass the rubber blockage body and 9. and directly be connected with rubber blockage body upper mounted plate, and the draught line other end is connected with tow lug, and tow lug can be made the arbitrary shape of being convenient to hold, and arbitrary shape can be a handle shape, cylindrical etc.
When linkage do not adorn simultaneously slide block 4., go up block 3., block utilizes other instrument to knock rubber blockage body upper mounted plate 8. 5. the time down, and the rubber blockage body is pressed into blocked pipe end.After mediation is finished, lift tow lug, the rubber blockage body is pulled out blocked pipe end.
2. 9. the rubber blockage body can be connected with arbitrarily angled with the multi-functional air pipeline, arbitrarily angled can be 0 °, 45 ° etc., the rubber blockage body 9. in the multi-functional air pipeline 2. contact the part can install lining additional, 2. lining and multi-functional air pipeline form tight fit, also form tight fit with the rubber blockage body, with the generation sealing function, and be convenient to change, reduce cost.
Claims (10)
1, a kind of high pressure gas dynamic formula pipeline cleaning is dredged dual-purpose machine, is made up of power set and linkage two parts, it is characterized in that:
Power setting part is made of the give vent to anger snap joint etc. of gas cylinder, gas cylinder switch, hard air pipe line, hard air pipe line switch, air gauge, air hose, gas circuit, hard air pipe line can be fixed to the fixture of gas cylinder or directly be fixed on the gas cylinder, in the hard air pipe line switch is set, play the secondary safety effect, prevent that high pressure gas out of control from washing out air gauge etc.; Use air hose, other parts that are connected with air hose are linked to each other with arbitrarily angled; Air hose and other parts junction are fixed with the clamp of endless belt butterfly nut, are convenient to quickly dismantled;
Linkage part by gas circuit air inlet snap joint 1., the multi-functional air pipeline 2., go up block 3., slide block 4., down block 5., rubber blockage body upper mounted plate 8., the rubber blockage body 9., 10. rubber blockage body bottom plate reach draught line , tow lug etc. and constitute, the middle part of multi-functional air pipeline is empty, and the voltage supply air that contracts passes through; The outside diverse location of pipeline is made screw thread, miscellaneous part in miscellaneous part or the permanent connection in the connection
2, high pressure gas dynamic formula pipeline cleaning as claimed in claim 1 is dredged dual-purpose machine, it is characterized in that: the gas cylinder volume is changeable, the stored compression pressure of gas cylinder is changeable, gas can be that normal air also can be a nitrogen etc., can give a plurality of bomb air feed by an air compressor, reduce overlapping investment.
3, high pressure gas dynamic formula pipeline cleaning as claimed in claim 1 is dredged dual-purpose machine, it is characterized in that: air hose is fixedlyed connected with hard card of endless belt butterfly nut with other parts junction, is convenient to quickly dismantled.
4, high pressure gas dynamic formula pipeline cleaning as claimed in claim 1 is dredged dual-purpose machine, it is characterized in that: the rubber blockage body 9. and upper mounted plate 8., 10. bottom plate can make various difformities, to adapt to the difformity of blocked pipe end; The upper and lower fixing plate profile is less than rubber blockage body profile; The rubber blockage body makes that an end is less, the other end is bigger; An end that is introduced into blocked pipe end is less; Rubber blockage body external diameter equals the pipe end internal diameter after being pressed into port.
5, high pressure gas dynamic formula pipeline cleaning as claimed in claim 1 is dredged dual-purpose machine, it is characterized in that: the multi-functional air pipeline 6. shown in part can be permanent or with being threaded.
6, high pressure gas dynamic formula pipeline cleaning as claimed in claim 1 is dredged dual-purpose machine, it is characterized in that: the multi-functional air pipeline can be multiple shape, be made of metal, through upper mounted plate 8., bottom plate 10. and pass the rubber blockage body 7., form sealing with tight fit; Upper and lower fixing plate can be connected with the multi-functional air pipeline with multiple mode, also can install hold-down nut and pad or spring shim respectively additional.
7, high pressure gas dynamic formula pipeline cleaning as claimed in claim 1 is dredged dual-purpose machine, it is characterized in that: 2. 1. the gas circuit of linkage (air inlet) snap joint can permanently be connected with the multi-functional air pipeline, also can connect with engage thread; The external diameter of gas circuit (air inlet) snap joint can greater than, be equal to or less than the external diameter of multi-functional air pipeline.
8, high pressure gas dynamic formula pipeline cleaning as claimed in claim 1 is dredged dual-purpose machine, it is characterized in that: slide block 4. last block 3. and following block 5. between, 4. the slide block internal diameter can slide slide block greater than the multi-functional air outer diameter tube outside the multi-functional air pipeline; The slide block external surface is made the handle shape that is easy to hold or is carried out " annular knurl " processing to increase frictional force; 5. 8. last block can be connected with the multi-functional air pipeline is 2. permanent with following block, also can be threaded; 5. following block can not adorned, and utilizes rubber blockage body upper mounted plate 8. to play the block effect, can not adorn upper and lower block and slide block at the same time or separately yet.
9, high pressure gas dynamic formula pipeline cleaning as claimed in claim 1 is dredged dual-purpose machine, it is characterized in that: 9. the rubber blockage body can install a draught line and traction draw ring arbitrarily additional in the linkage, 8. draught line one end can be connected also and can 10. be connected with the blockage body bottom plate with the blockage body upper mounted plate, the draught line other end is connected with tow lug, and tow lug can be made the different shape of being convenient to hold.
10, high pressure gas dynamic formula pipeline cleaning as claimed in claim 1 is dredged the dual-purpose machine of energy, it is characterized in that: 2. 9. the rubber blockage body in the linkage can be connected with arbitrarily angled with the multi-functional air pipeline, the rubber blockage body 9. in the multi-functional air pipeline 2. contact the part can install lining additional, 2. lining and multi-functional air pipeline form tight fit, also form tight fit with the rubber blockage body, with the generation sealing function, and be convenient to change.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98219195 CN2361692Y (en) | 1998-10-13 | 1998-10-13 | High-pressure pneumatic pipeline cleaning and dredging machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98219195 CN2361692Y (en) | 1998-10-13 | 1998-10-13 | High-pressure pneumatic pipeline cleaning and dredging machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2361692Y true CN2361692Y (en) | 2000-02-02 |
Family
ID=33971348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98219195 Expired - Fee Related CN2361692Y (en) | 1998-10-13 | 1998-10-13 | High-pressure pneumatic pipeline cleaning and dredging machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2361692Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105239665A (en) * | 2015-10-15 | 2016-01-13 | 常州亚环环保科技有限公司 | Small and portable sewer dredging device |
| CN108265701A (en) * | 2018-04-13 | 2018-07-10 | 范雲鹤 | It is a kind of can dredged soft soil foundation drainage system |
-
1998
- 1998-10-13 CN CN 98219195 patent/CN2361692Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105239665A (en) * | 2015-10-15 | 2016-01-13 | 常州亚环环保科技有限公司 | Small and portable sewer dredging device |
| CN108265701A (en) * | 2018-04-13 | 2018-07-10 | 范雲鹤 | It is a kind of can dredged soft soil foundation drainage system |
| CN108265701B (en) * | 2018-04-13 | 2024-03-15 | 上海铁能建设工程有限公司 | Soft soil foundation drainage system capable of being dredged |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209139537U (en) | A kind of hand-held type automobile metal plate steel plate fix tool | |
| CN2361692Y (en) | High-pressure pneumatic pipeline cleaning and dredging machine | |
| CN200964334Y (en) | Air pressure type multifunctional jack | |
| CN112643622B (en) | Multi-station maintenance auxiliary device based on automobile engine parts | |
| CN210253902U (en) | Hybrid rivetless riveting tool | |
| CN107877230A (en) | A kind of four shaft turbines supercharging shell processing clamping device | |
| CN208427894U (en) | A kind of branch pipe welding fixture | |
| CN206153825U (en) | Little wheat harvesting machine driver's cabin frame welding frock | |
| CN212482795U (en) | Internal expansion sealing device for air tightness detection of automobile exhaust pipeline | |
| CN100462575C (en) | Simple negative air suction cup apparatus | |
| CN205876640U (en) | Conjuncted duplex air pump is used in electric motor car | |
| CN2803560Y (en) | Reducing appts. of reducing pipe | |
| CN210233075U (en) | Multifunctional adsorption device | |
| CN113580049A (en) | Be applied to interior expanding clamping device of fan barrel | |
| CN210829635U (en) | Air compressor machine with silence efficiency that is applied to production of polyamide fibre multifilament | |
| CN221110719U (en) | Piston drilling fixing device | |
| CN2388232Y (en) | Pipe dredger | |
| CN214163060U (en) | Parallel gas claw of big clamping-force for robot | |
| CN110307208B (en) | Sealed multistage hydraulic cylinder | |
| CN2405784Y (en) | Automobile tyre assembling-disassembling machine carried with air-compressor device | |
| CN208546285U (en) | One kind can be detached from feeder | |
| CN2152615Y (en) | Device for cleaning pipeline | |
| CN219464793U (en) | Pneumatic chuck clamping assembly | |
| CN2416264Y (en) | Pressuer driving intensifier | |
| CN219025342U (en) | Textile fiber dust filtering device for textile workshop |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |