CN2094391U - High crash ratio pulverizer - Google Patents
High crash ratio pulverizer Download PDFInfo
- Publication number
- CN2094391U CN2094391U CN 91217233 CN91217233U CN2094391U CN 2094391 U CN2094391 U CN 2094391U CN 91217233 CN91217233 CN 91217233 CN 91217233 U CN91217233 U CN 91217233U CN 2094391 U CN2094391 U CN 2094391U
- Authority
- CN
- China
- Prior art keywords
- jaw
- roller
- pulverizer
- roll
- driven roll
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Crushing And Grinding (AREA)
Abstract
The utility model belongs to a material crushing device, particularly a high crash ratio pulverizer. The designed pulverizer is composed of a stereo structure rack, a jaw-roll crushing part which is perpendicularly arranged on the stereo structure rack, a double-roll rolling part, a grinding device and a power transmission part. Eccentric rollers and an arc fixed jaw plate are adopted on the jaw-roll crushing part, which obviously enhances the material handling capacity. A multiple stereoscopic pulverizing structure with crushing and grinding functions is adopted, which visibly enhances the material crushing ratio.
Description
The utility model belongs to material-pulverizing device, and is especially relevant with the pulverizer with high ratio of reduction.
At present, in the mine, powder processing industries such as cement, chemical industry and building materials, the most frequently used pulverizer is to nibble the broken machine of plate jaw.Though this disintegrating machine can become φ 20-40 millimeter by φ 125-225mm piece material primary fragmentation directly, but its shortcoming is tangible, (1) ratio of reduction is little, in order to reduce the milling time of powder, need further fragmentation on the broken machine of thin jaw toward contact, or further in small, broken bits through other disintegrating machine, (2) nibble the necessary even feeding of the broken machine of plate jaw, get stuck or vexed car phenomenon otherwise be prone to,, can not satisfy the production needs so treating capacity is little relatively.
The purpose of this utility model is to design a kind of pulverizer of the high ratio of reduction, and this pulverizer has big treating capacity again when having the high ratio of reduction.
The pulverizer of the high ratio of reduction of the utility model design is vertically set on roller jaw crushing part and pair roller spreading part on the stereochemical structure by the stereochemical structure frame, and power transmission part is grouped into.The stereochemical structure frame comprises the wall of two fan parallel vertical, with many rows of two fan walls fastening all-in-one-pieces bolt, weld at an angle of 90 with the wall bottom and outwardly directed two tighten up plate and with tighten up the machine underframe that plate links into an integrated entity.On the top of stereochemical structure frame roller jaw crushing part is installed, it comprises eccentric jaw roller, and arc is decided jaw and is installed in safeties and the pull bar of deciding on the jaw.Pair roller spreading part is housed in the bottom of stereochemical structure frame, and pair roller spreading part is made up of the holding device of horizontally disposed drive roll, driven roll and driven roll.Desire broken material feeding pair roller jaw crushing part after the fragmentation first time, its discharge directly carries out in small, broken bits along the axial evenly feeding roller spreading part of roller once more.Two parts can be used chain drive, use a power source to carry out run-in synchronism, and also available two power sources drive respectively.
In order to obtain more fine-grained powder, below the binding site of pair roller spreading part, sharpener is housed, sharpener is roughly the mill iron head at right angle by the top of being close to each roll surface of pair roller spreading part, is contained in the holding device of mill iron subfacies and the automatic positioning equipment of mill iron head and forms.Mill iron head rest holding device holds out against, and two flour millings of mill iron head are squeezed in trigonum pair roller under, keeps automatically fitting tightly with each roll surface of pair roller spreading part, further to pair roller spreading discharge grinding partly.
Fig. 1 is the structure principle chart of pulverizer of a kind of high ratio of reduction of the utility model design.
Fig. 2 is the structure principle chart of the higher pulverizer of the ratio of reduction of the utility model design.
Fig. 3 is the structure chart of the high ratio of reduction pulverizer of band sharpener.
Fig. 4 is the A-A cutaway view of Fig. 3.
Fig. 5 is the structure chart that arc is decided jaw, and wherein a is a front view, and b is a side view.
Fig. 6 is the structure chart of eccentric bushing.
Fig. 7 is the C-C cutaway view of Fig. 3.
Fig. 8 is the B-B cutaway view of Fig. 3.
Below in conjunction with accompanying drawing embodiment of the present utility model and effect thereof are further described.
Fig. 1 and 2 is respectively the structure principle chart of the pulverizer with different ratios of reduction.Wherein, the pulverizer of Fig. 1 is made up of two parts, i.e. the pair roller spreading of the roller jaw crushing on top part and below thereof is partly formed.Roller jaw crushing part decide jaw 2 by jaw roller 1, decide the safeties 3 of jaw and forms, and the pair roller spreading is partly by drive roll 4, driven roll 5, holding device 6 compositions of driven roll.Can adopt chain drive to reach run-in synchronism between them.The pulverizer of Fig. 2 is made up of three parts, and it is to have set up a sharpener 7 below the joint portion of two rollers of pair roller spreading part, thereby the powder that the pair roller spreading is partly discharged carries out grinding once more, obtains thinner powder.
Fig. 3 Fig. 4 is the structure chart of the high ratio of reduction pulverizer of band sharpener, and it is made up of three parts.Be superposed roller jaw crushing part, be positioned at the pair roller spreading part at middle part and the sharpener of bottom, they are installed on the stereochemical structure frame.The stereochemical structure frame is by the wall 8 of two fan parallel vertical, with many rows of two fan walls fastening all-in-one-pieces bolt 9, weld at an angle of 90 with the wall bottom and outwardly directed two tighten up plate 10 and with tighten up the machine underframe 11 that plate links into an integrated entity and form.Machine underframe front portion is used for the supportive body structure, and the rear portion is an electric machine stand, by belt transmission power is passed on the drive roll 34 in the pair roller spreading part.
Roller jaw crushing part is decided jaw by eccentric jaw roller and arc and is formed, and the appropriate location also can add charging hopper 33 up.Eccentric jaw roller comprises main shaft 12, the eccentric bushing 13 adaptive with main shaft, be installed in jaw roller axis of rotation bearing and bearing 14 between eccentric bushing 13 and the jaw roller roller skin 15, the main shaft two ends have respectively with the belt pulley 16 of motor belt transmission with power passes to the chain drum 17 of pair roller spreading part, bearing block that is contained in main shaft 12 two ends and bearing 18 that main shaft 12 is connected with wall.In order to obtain the energy storage effect and to reach dynamic balancing, flying wheel 19 also is housed at the other end of the main shaft of the wheel 16 that thongs.The jaw roller obtains power by coaxial belt pulley from motor, and forming what have certain speed by eccentric bushing 13 is the eccentric operating in axle center with main shaft 12.In addition, owing between eccentric bushing 13 and jaw roller roller skin, jaw roller axis of rotation bearing and bearing 14 are housed, therefore in the shattering process of material, can do rotation with material.This rotation both can make the downward free feeding of material and reduce resistance, can freely adjust the rotating speed of jaw roller and turned to difform material again, reducing the friction with material, thereby reduced the wearing and tearing of jaw roller skin.Can adopt various methods of attachment between jaw roller roller skin 15 and the main shaft 12,, but adopt removable connected mode as bolted as fixedly connected or removable connection, then can be when jaw roller roller skin can not use because of wearing and tearing, the jaw roller roller skin that more renews easily.
Arc is decided jaw and is comprised safeties and the pull bar of deciding jaw support 20, deciding the outside, lower end of jaw support.The upper end of deciding the jaw support is installed on the wall with back shaft 22, and can back shaft 22 decide distance between jaw bottom and the jaw roller for the axle center adjustment, thereby the opening size that acquisition needs, make opening size when variation with decide jaw because of wearing and tearing in jaw roller bottom, also can adjust to the opening size of requirement by same action.Safeties are by safety plate 23, pad 24 and top rod 25 are formed, insurance 23 is generally the thick middle thin cast iron sheet in two ends, adaptive being mounted on of one end decided on the jaw support, the other end and several pads 24 are adaptive, there is guide rail 26 both sides of pad 24 so that pad 24 can only move forward and backward, and the rearward end of pad 24 has moving of top rod 25 restriction pads 24.Pull bar and safeties are installed in the homonymy close position of deciding the jaw support, it by an end with decide that the jaw support is connected, the threaded bar 27 of the other end, be contained in the pull bar fixed mount 28 on the wall, and the nut 29 of the threaded engagement of bar 27 and be contained in pull bar fixed mount 28 and nut 29 between spring 30 form.Bar 27 is to utilize pin 31 to connect with the simplest method that is connected of deciding the jaw support.The inboard of deciding jaw support 20 is an arc, also can be polygon.In order to reduce the consumption of making the high-quality high-abrasive material decide jaw and the convenience of maintain and replace, the inboard of deciding jaw support 20, promptly broken working face all has the liner plate 21 of removable connection, and the connected mode of using always is to be threaded.Fig. 5 is that a kind of inboard is the polygonal structure chart of deciding jaw.For the ease of discharge with reach crushing effect, the jaw roller and decide the jaw installation after, the vertical line on main shaft 12 cross sections and be generally the 12-24 degree by axle center and the angle decided between the line of jaw bottom.The too little discharge that is difficult for of angle, the too big crushing effect of angle is poor, and some coarse fodders have little time fragmentation and will discharge.The thickness of discharging material must be adjusted opening size as requested.At first unscrew the nut 29 of bar 27 1 ends, make and decide jaw support 20 and can freely rotate along back shaft 22.Then, select to adjust the quantity of pad 24, i.e. thickness is adjusted to required opening size with deciding between the lower end of jaw support and the jaw roller, and fastening nut 29 can make opening size remain on required opening size then.In shattering process, if add excessive or other reason in the piece footpath of pan feeding cause decide jaw stressed excessive can damage frame for movement or during power section, safety plate 23 is can be residual disconnected and play a protective role.When needing fragmentation, will treat that broken material adds from charging hopper, employing is crowded with formula feed-types and the vexed car phenomenon that gets stuck also can not occurred.The material that adds enters by eccentric jaw roller and arc decide in the space that jaw forms, and material is fragmentation gradually when eccentric jaw roller is made eccentric motion, is discharged by the lower end.Discharge material and enter pair roller spreading part.
Pair roller spreading part is made up of the holding device of drive roll, driven roll and driven roll.Drive roll and driven roll all are horizontally disposed with.Drive roll skin 34 usefulness bolts are connected with roll shaft 35, the bearing at roll shaft two ends is connected with wall with bearing block 36, one end of roll shaft 35 has chain drum 37, exert oneself from the main shaft distribution of jaw roller by chain, the composition of driven roll 38 is identical with drive roll basically with installation, level is installed in the offside of drive roll, by holding device driven roll is close on the drive roll.The top of drive roll and driven roll constitutes the trigonum of charging, and the tangent line of two roller joint portions just in time passes through the axle center of jaw roller main shaft 12.The holding device of driven roll by the driven roll bearing 40 that is installed in the two ends band chute on the passive roll shaft 39, hold out against spring 41, spring base 42 and push rod 43 formed.There is the guide rail 44 that is fixed on the upright groove both sides of driven roll bearing block 40, and it and driven roll bearing block 40 are slidingly matched.Hold out against spring 41 and be installed between driven roll bearing block 40 and the spring base 42, an end and the spring base 42 of push rod 43 are adaptive, another threaded end and bolting seat 45 threaded engagement that are fixed on the wall.
According to the thickness of the required powder of discharge, turn push rod 43, can compress or unclamp the pressure that holds out against 41 pairs of driven shaft bearing seats 40 of spring, make the driven roll bearing block reach the degree that compresses of regulating between the main driven roll along guide rail 44 move left and right.
The vertical tangent line of its joint portion of a pair of horizontal roller of pair roller spreading part just in time passes through the center of circle of jaw roller main shaft 12, the discharge gate length of the joint portion of two rollers and roller jaw crushing part is roughly the same again, and it is parallel up and down, formed the best feeding manner of pair roller spreading part, having guaranteed pair roller spreading part even feeding on horizontal length, weares and teares increasing and recessed heart phenomenon occurs in the unlikely pair roller centre that occurs.When drive roll rotated, driven roll was done simultaneously and is relatively rotated, and was further pulverized through the pair roller spreading by the material of top feeding.
The pulverizer that partly is made of roller jaw broken segment and pair roller spreading can be broken into the material of piece footpath 130 millimeter the powder less than 3 millimeters, and its ratio of reduction is obviously greater than existing same device.
Wish to get the higher ratio of reduction, also be provided with sharpener in the bottom of pair roller spreading part.Sharpener is installed in the trigonum under the main driven roll of pair roller spreading part.It comprises that the top is roughly the mill iron head 46 at right angle, is contained in the position that holds out against at two ends under the mill iron head.Holding device by guide rod 47, be enclosed within the outer spring of guide rod 48 install guide rods 47 carriage 49 and with carriage 49 with tighten up the holder bolt 50 that plate 10 is threaded togather and form.On two right angle faces of mill iron head 47 mill iron 52 is arranged, the endoporus of the spring base 51 that is installed on the carriage 49 is passed in the lower end of guide rod 47; A horizontal cylinder is with in the upper end of guide rod 47, and cylinder fits in the circular cavity of mill iron head, and cylinder can slide relatively with the circular cavity inwall, thus grind the iron head can be on guide rod left-right rotation.Adopt the spring base 51 of trapezoidal endoporus, guide rod 47 is all around tilted in the hole.The fit structure of the sliding matching structure of the round cavity of the cylinder on guide rod top and mill iron head and the spring base of lower end of the guide rod and trapezoidal endoporus has been formed the automatic positioning equipment of mill iron head.According to the thickness requirement of final powder, turn pulling plug 50 and carriage is risen or descend, make spring compression or unclamp to change the thrust of spring, thereby can regulate the degree that compresses between mill iron head and master, driven roll mill iron head.That the powder of partly being discharged by the pair roller spreading enters is main, in driven roll roll surface and the grinding area that the mill iron phase of mill iron head contact because mill iron is close to roll surface under the thrust of spring 48, when main driven roll when grinding the iron rotation, powder is further ground.Because a variety of causes driven roll when being backed down outside translation by material, under the effect of transfer, mill iron head can be from the motion tracking driven roll in attrition process, and the best that remains with roll surface is adjacent to state, guarantees ground effect.
The high ratio of reduction pulverizer that comprises roller jaw crushing part and pair roller spreading part has the higher ratio of reduction, usually the material in φ 130 mm pieces footpaths can be pulverized and obtain granularity less than 3 millimeters powder, its treating capacity doubles above than the broken machine of traditional same specification jaw.The high ratio of reduction pulverizer that has sharpener then can obtain granularity less than 1 millimeter mach powder of similar ball milling.Its specific yield power consumption only is that 25% of equipment is broken, ground to tradition.
Designed pulverizer high-abrasive material can all be selected the good martensite rich chromium cast iron of hardness high-wear resistance for use, and therefore, high-abrasive material consumption greatly reduces than general device.It is lighter that finished product powder iron dyes degree, is fit to produce high-quality powder product.
Adopt the jaw roller of 370 * 300 millimeters of φ, the pulverizer of the high ratio of reduction of the band sharpener of the master that φ is 370 * 300 millimeters, driven roll, conduct oneself with dignity 1.5 tons, its power of motor is 17 kilowatts, when maximum feeding granularity is 125 millimeters, marker size wherein accounts for 35% less than 100 purpose powders less than 1 millimeter, and per hour treating capacity is greater than 3 tons.Designed pulverizer conveniently moving.
Claims (6)
1, a kind of high ratio of reduction pulverizer that comprises jaw and power section is characterized in that:
[1] described high ratio of reduction pulverizer is vertically set on the pre-roller type broken segment on the stereochemical structure frame by the stereochemical structure frame, and the pair roller spreading is partly formed,
[2] described stereochemical structure frame comprises the wall 8 of two fan parallel vertical, with many rows of the fastening all-in-one-piece of two fan walls bolt 9, weld at an angle of 90 with the wall bottom and outwardly directed two tighten up plate 10 and with tighten up the machine underframe 11 that plate links into an integrated entity, the pre-roller type broken segment of installing on the top of stereochemical structure frame, the pair roller spreading part of installing in stereochemical structure frame bottom
Described pre-roller type broken segment comprises that eccentric jaw roller, arc decide jaw and be installed in safeties and the pull bar of deciding on the jaw,
Described pair roller spreading partly comprises the holding device of horizontally disposed drive roll 34, driven roll 38 and driven roll.
2, by the described pulverizer of claim 1, it is characterized in that: described pulverizer also is equipped with sharpener below the binding site of pair roller spreading part, described sharpener is roughly the mill iron head at right angle by the top of being close to each roll surface of pair roller spreading part, is contained in the holding device of mill iron subfacies both sides and the automatic positioning equipment of mill iron head.
3, by claim 1 or 2 described pulverizers, it is characterized in that: described eccentric jaw roller comprises main shaft 12, the eccentric bushing 13 adaptive with main shaft, be installed in jaw roller axis of rotation bearing and bearing 14 between eccentric bushing 13 and the jaw roller roller skin 15, the belt pulley 16 at spindle bearing holder 18 and main shaft two ends and chain drum 17
Described arc is decided jaw and is comprised that the medial surface of deciding jaw support 20 and liner plate 21, support is a kind of in arc and the polygon, and liner plate 21 is threaded with the support medial surface,
Described safeties are by safety plate 23, and pad 24 and top rod 25 are formed,
Described pull bar by an end with decide the threaded bar 27 of the other end that the jaw support is connected, be contained in the pull bar fixed mount 28 on the wall, and the nut 29 of the threaded engagement of bar 27 and be contained in pull bar fixed mount 28 and nut 29 between spring 30 form,
The holding device of described driven roll holds out against spring 41 by the driven roll bearing block 40 of the two ends band chute that is installed in passive roll shaft 39, and spring base 42 and push rod 43 are formed, and the both sides of bearing block 40 have the guide rail 44 that is fixed on the wall to be slidingly matched with bearing block 40.
4, by the described pulverizer of claim 2, it is characterized in that: described holding device is by guide rod 47, be enclosed within the outer spring 48 of guide rod, install guide rod 47 carriage 49 and with carriage 49 with tighten up the pulling plug 50 that plate 10 is threaded togather and form, described automatic positioning equipment comprises fit structure two parts of forming cylinder and round cavity sliding matching structure and guide rod 47 lower ends by the horizontal cylinder of guide rod 47 upper ends, with the circular cavity of the adaptive mill iron head of cylinder and being installed in the trapezoidal endoporus of the spring base on the carriage 49.
5, by the described pulverizer of claim 4, it is characterized in that: mill iron 52 is housed on two right angle faces of described mill iron head.
6, by the described pulverizer of claim 5, it is characterized in that: the other end at the main shaft 12 of the wheel that thongs also is equipped with flying wheel 19.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91217233 CN2094391U (en) | 1991-07-04 | 1991-07-04 | High crash ratio pulverizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91217233 CN2094391U (en) | 1991-07-04 | 1991-07-04 | High crash ratio pulverizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2094391U true CN2094391U (en) | 1992-01-29 |
Family
ID=4924948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91217233 Pending CN2094391U (en) | 1991-07-04 | 1991-07-04 | High crash ratio pulverizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2094391U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100363109C (en) * | 2005-01-18 | 2008-01-23 | 高奎坤 | Combined multi-layer disintegrating equipment for preparing pouser paint |
| CN102430447A (en) * | 2011-11-10 | 2012-05-02 | 重庆百瑞斯德科技有限公司 | Slag crusher |
| CN102527468A (en) * | 2010-12-20 | 2012-07-04 | 朱华平 | Combined crushing roller |
| CN104056682A (en) * | 2014-06-06 | 2014-09-24 | 陈晨 | Roller-plate ore grinding machine |
| CN108636509A (en) * | 2018-05-24 | 2018-10-12 | 吕敏 | A kind of medical medicinal material attrition grinding integrated apparatus |
| CN111298892A (en) * | 2020-03-11 | 2020-06-19 | 塞尔姆（北京）科技有限责任公司 | Eccentric roller type crusher |
| CN111565852A (en) * | 2018-01-04 | 2020-08-21 | 蒂森克虏伯工业解决方案股份公司 | Mobile crushing system with eccentric roller crusher and finger screen |
| CN113058687A (en) * | 2021-04-28 | 2021-07-02 | 江苏鹏飞集团股份有限公司 | Rolling device for recycling roll surface |
| CN113499826A (en) * | 2021-08-06 | 2021-10-15 | 湖南远通重工科技有限公司 | Eccentric roller type crusher |
-
1991
- 1991-07-04 CN CN 91217233 patent/CN2094391U/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100363109C (en) * | 2005-01-18 | 2008-01-23 | 高奎坤 | Combined multi-layer disintegrating equipment for preparing pouser paint |
| CN102527468A (en) * | 2010-12-20 | 2012-07-04 | 朱华平 | Combined crushing roller |
| CN102430447A (en) * | 2011-11-10 | 2012-05-02 | 重庆百瑞斯德科技有限公司 | Slag crusher |
| CN104056682A (en) * | 2014-06-06 | 2014-09-24 | 陈晨 | Roller-plate ore grinding machine |
| CN111565852A (en) * | 2018-01-04 | 2020-08-21 | 蒂森克虏伯工业解决方案股份公司 | Mobile crushing system with eccentric roller crusher and finger screen |
| CN108636509A (en) * | 2018-05-24 | 2018-10-12 | 吕敏 | A kind of medical medicinal material attrition grinding integrated apparatus |
| CN111298892A (en) * | 2020-03-11 | 2020-06-19 | 塞尔姆（北京）科技有限责任公司 | Eccentric roller type crusher |
| CN113058687A (en) * | 2021-04-28 | 2021-07-02 | 江苏鹏飞集团股份有限公司 | Rolling device for recycling roll surface |
| CN113499826A (en) * | 2021-08-06 | 2021-10-15 | 湖南远通重工科技有限公司 | Eccentric roller type crusher |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201132126Y (en) | Pre-grinding mill | |
| CN2094391U (en) | High crash ratio pulverizer | |
| CN201855712U (en) | Horizontal high-strength roller machine | |
| CN102837247B (en) | Working table of abrasive belt machine | |
| CN2345280Y (en) | Vertical middle disintegrating mill | |
| CN1056323C (en) | Single granule and multi-external force mill | |
| CN201197944Y (en) | Crushing and grinding integrated roll-in grinder | |
| CN211216894U (en) | Grinder is used in powdered ore production | |
| CN217663610U (en) | Miniature full-automatic stone mill of booster-type | |
| CN208627473U (en) | A kind of exploitation of mineral resources ore crushing and screening integrated equipment | |
| CN216149991U (en) | Hydraulic multi-stage composite roller type crusher | |
| CN216137290U (en) | Rubbing crusher is used in fermented feed processing | |
| CN208356888U (en) | Synchronous hunting type four-roller crusher | |
| CN212975451U (en) | Grinding equipment for treating aluminum ash and aluminum slag | |
| CN2579520Y (en) | Crashing and grinder for waste rubber | |
| CN209034399U (en) | A kind of jaw crusher wedge block adjustment structure | |
| CN209439956U (en) | A kind of steel pipe seam automatic grinding equipment | |
| CN208486081U (en) | Apparatus for leveling is used in a kind of processing of new textile | |
| CN112516888A (en) | Metal processing raw materials is with mixing machine | |
| CN214716969U (en) | A reducing mechanism for gardens branch and leaf rubbing crusher | |
| CN2294110Y (en) | Super fine crushing roller mill | |
| CN215277519U (en) | Five-roller grinding machine | |
| CN2548697Y (en) | Self-cleaning cracker | |
| CN218168288U (en) | Novel bending machine | |
| CN218654871U (en) | Material distributing disc |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| AD01 | Patent right deemed abandoned | ||
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |