CN210279287U - Mineral aggregate crusher - Google Patents
Mineral aggregate crusher Download PDFInfo
- Publication number
- CN210279287U CN210279287U CN201920158156.0U CN201920158156U CN210279287U CN 210279287 U CN210279287 U CN 210279287U CN 201920158156 U CN201920158156 U CN 201920158156U CN 210279287 U CN210279287 U CN 210279287U
- Authority
- CN
- China
- Prior art keywords
- fixed
- water tank
- roller
- cylinder
- contact
- 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
- 229910052500 inorganic mineral Inorganic materials 0.000 title claims abstract description 27
- 239000011707 mineral Substances 0.000 title claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 80
- 238000002347 injection Methods 0.000 claims abstract description 17
- 239000007924 injection Substances 0.000 claims abstract description 17
- 230000003139 buffering effect Effects 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 5
- 230000032683 aging Effects 0.000 abstract description 5
- 230000006378 damage Effects 0.000 abstract description 5
- 230000007797 corrosion Effects 0.000 abstract description 4
- 238000005260 corrosion Methods 0.000 abstract description 4
- 238000007599 discharging Methods 0.000 abstract description 2
- 230000002159 abnormal effect Effects 0.000 abstract 1
- 239000003381 stabilizer Substances 0.000 abstract 1
- 210000003437 trachea Anatomy 0.000 abstract 1
- 238000003825 pressing Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 241000221535 Pucciniales Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Images
Landscapes
- Crushing And Grinding (AREA)
Abstract
The utility model relates to a mineral aggregate breaker, including hopper, broken case, discharging pipe, buffer gear and a plurality of stabilizer blade, broken incasement is equipped with the fixed roll and removes the roller, buffer gear includes water tank, drive assembly, clamp plate, kicking block, water injection pipe and two spacing units, drive assembly includes first cylinder, trachea and second cylinder, spacing unit includes spacing ring, gag lever post and flange, and this mineral aggregate breaker passes through the lift change of kicking block in the water tank among the buffer gear, arouses the buoyancy that receives to change, cushions the protection to removing the roller through clamp plate and drive assembly, compares in utilizing the spring to protect, and this buffer gear can not take place the abnormal conditions such as corrosion, ageing, damage for this buffer gear more stable and reliable its life increases substantially, has improved this equipment's practicality.
Description
Technical Field
The utility model relates to a mining equipment field, in particular to mineral aggregate breaker.
Background
In the mining process of a mine, the ore raw material needs to be crushed, so that the ore material is crushed into smaller size, and subsequent screening and screening are facilitated. There are various types of crushers, mainly including jaw crushers, roller crushers, impact crushers, compound crushers, cone crushers, etc., in which the roller crushers are machines that bite mineral materials into a crushing zone by using frictional force of a roller surface to crush the mineral materials by being crushed by being squeezed or split.
The existing roller crusher mainly comprises a movable crushing roller and a fixed crushing roller, wherein the movable crushing roller is adjusted and moved through a spring safety device, and the acting force generated between the two rollers can be balanced by the gravitational force of a spring when the roller crusher normally operates so as to keep the gap of a discharge opening and ensure that the granularity of a product is uniform. When the crusher enters into non-crushed objects, the spring is compressed to force the movable crushing roller to move transversely, the width of the discharge opening is increased, and the equipment is ensured not to be damaged. After the non-broken objects are removed, the spring is restored to the original state, and the machine works as usual. In the working process of the crusher, the safety spring is always in a vibration state, so that the spring is easy to fatigue and age, and is very easy to damage after long-time operation, and the spring is installed inside the equipment, so that the spring is difficult to check and replace, and the practicability of the existing roller type mineral aggregate crusher is reduced.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: in order to overcome the defects of the prior art, the mineral aggregate crusher is provided.
The utility model provides a technical scheme that its technical problem adopted is: a mineral aggregate crusher comprises a hopper, a crushing box, a discharge pipe, a buffer mechanism and a plurality of support legs, wherein the support legs are fixed below the crushing box, the hopper and the discharge pipe are respectively fixed above and below the crushing box, the connecting line of the hopper and the discharge pipe is vertical to the horizontal plane, a fixed roller and a movable roller are arranged in the crushing box, the movable roller is connected with the buffer mechanism, the fixed roller is positioned on one side of the movable roller, which is far away from the buffer mechanism, and the connecting line of the hopper and the discharge pipe is positioned between the fixed roller and the movable roller;
buffer gear includes water tank, drive assembly, clamp plate, kicking block, water injection pipe and two spacing units, the top at the water tank is fixed to the water injection pipe, water injection pipe and water tank intercommunication, clamp plate, kicking block, water injection pipe and two spacing units all are located the water tank, the clamp plate is located the kicking block directly over, the clamp plate level sets up, the kicking block supports and leans on the below at the clamp plate, the kicking block is located between two spacing units, the clamp plate passes through drive assembly and is connected with the removal roller.
Preferably, in order to convert the horizontal movement of the moving roller into the lifting movement of the pressing plate, the transmission assembly comprises a first air cylinder, an air pipe and a second air cylinder, the cylinder body of the first air cylinder is horizontally fixed in the crushing box, the air rod of the first air cylinder is fixedly connected with the moving roller, the cylinder body of the second air cylinder is vertically fixed at the top in the water tank, the bottom end of the air rod of the second air cylinder is fixedly connected with the pressing plate, and the cylinder body of the first air cylinder is communicated with the cylinder body of the second air cylinder through the air pipe.
Preferably, in order to limit the movement of the floating block, the limiting unit comprises a limiting ring, a limiting rod and a convex plate, the convex plate is fixed at the top end of the limiting rod, the bottom end of the limiting rod is fixed at the bottom in the water tank, the limiting ring is sleeved on the limiting rod, and the limiting ring is fixedly connected with the floating block.
As preferred, in order to facilitate in time to add water in the water tank, the warning subassembly includes power, speaker, first contact and second contact, power and speaker are all fixed on the water tank, first contact is fixed on the inner wall of one side of water tank, the second contact is fixed in one side of floating block, the line of first contact and second contact is perpendicular with the horizontal plane, the both ends of speaker are connected with the one end of second contact and power respectively, the other end and the first contact of power are connected.
Preferably, in order to limit the water level, a drain pipe is arranged on one side of the water tank far away from the first contact point, and the drain pipe is positioned below the first contact point.
Preferably, in order to enhance the crushing effect, the surfaces of the movable roller and the fixed roller are provided with grains.
The beneficial effects of the utility model are that, this mineral aggregate breaker changes through the lift of floating block in the water tank among the buffer gear, and the buoyancy that arouses to receive changes, cushions the protection to removing the roller through clamp plate and drive assembly, compares in utilizing the spring to protect, and this buffer gear can not take place the unusual circumstances such as corrosion, ageing, damage for this buffer gear is more reliable and more stable, and its life increases substantially, has improved this equipment's practicality.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic structural view of the mineral aggregate crusher of the present invention;
FIG. 2 is a schematic structural view of a buffering mechanism of the mineral aggregate crusher of the present invention;
in the figure: 1. the device comprises a hopper, 2 a crushing box, 3 a discharge pipe, 4 a support leg, 5 a fixed roller, 6 a movable roller, 7 a water tank, 8 a pressure plate, 9 a floating block, 10 a water injection pipe, 11 a first air cylinder, 12 an air pipe, 13 a second air cylinder, 14 a limiting ring, 15 a limiting rod, 16 a convex plate, 17 a power supply, 18 a loudspeaker, 19 a first contact, 20 a second contact and 21 a drain pipe.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
As shown in fig. 1, a mineral aggregate crusher comprises a hopper 1, a crushing box 2, a discharge pipe 3, a buffer mechanism and a plurality of support legs 4, wherein the support legs 4 are fixed below the crushing box 2, the hopper 1 and the discharge pipe 3 are respectively fixed above and below the crushing box 2, the connecting line of the hopper 1 and the discharge pipe 3 is vertical to the horizontal plane, a fixed roller 5 and a movable roller 6 are arranged in the crushing box 2, the movable roller 6 is connected with the buffer mechanism, the fixed roller 5 is positioned on one side of the movable roller 6 far away from the buffer mechanism, and the connecting line of the hopper 1 and the discharge pipe 3 is positioned between the fixed roller 5 and the movable roller 6;
the workman is using this breaker to carry out broken man-hour to the mineral aggregate, heat the mineral aggregate in to broken case 2 through hopper 1, make the mineral aggregate fall between removal roller 6 and fixed roll 5, the rigidity of fixed roll 5 is unchangeable, and remove roller 6 and can move on the horizontal direction, equipment starts, fixed roll 5 rotates simultaneously with removal roller 6, extrude the mineral aggregate between the broken two, form the ore granule after the extrusion is broken, fall from the space between fixed roll 5 and the removal roller 6, discharge through discharging pipe 3, remove roller 6 when the horizontal direction removes, slow down the removal that removes roller 6 through buffer gear, carry out the buffer protection to removal roller 6, thereby realize the safe and stable operation of equipment.
As shown in fig. 2, buffer gear includes water tank 7, drive assembly, clamp plate 8, floating block 9, water injection pipe 10 and two spacing units, water injection pipe 10 is fixed in the top of water tank 7, water injection pipe 10 and water tank 7 intercommunication, clamp plate 8, floating block 9, water injection pipe 10 and two spacing units all are located water tank 7, clamp plate 8 is located floating block 9 directly over, clamp plate 8 level sets up, floating block 9 supports and leans on in the below of clamp plate 8, floating block 9 is located between two spacing units, clamp plate 8 is connected with removal roller 6 through drive assembly.
In the buffer mechanism, clear water is added into a water tank 7 through a water injection pipe 10, so that a floating block 9 is abutted to the lower part of a pressing plate 8 under the influence of buoyancy, when the equipment runs, the horizontal movement of a moving roller 6 is converted into the vertical movement of the pressing plate 8 in the water tank 7 through a transmission component, when the moving roller 6 is far away from a fixed roller 5, the pressing plate 8 moves downwards, so that the floating block 9 is extruded downwards, more parts of the floating block 9 enter water, the buoyancy borne by the floating block 9 is increased, the floating block 9 reacts on the moving roller 6 through the pressing plate 8 and the transmission component, the buffer protection effect is realized on the moving roller 6, when the moving roller 6 moves close to the fixed roller 5, the pressing plate 8 moves upwards, because the buoyancy borne by the floating block 9 is greater than the gravity of the floating block 9, the floating block 9 moves upwards, the part of the floating block 9 in the water is reduced, and the buoyancy borne by the floating, make to the holding power of clamp plate 8 reduce, compare in traditional utilization spring buffering protection removal roller 6, among this buffer gear, the buoyancy size that the kicking block 9 received changes along with the lift of kicking block 9, and the spring long-term operation back is because factors such as vibration rusts take place ageing, the size of kicking block 9 is unchangeable, only need keep the water yield of 7 internal fixation of water tank, carry out the buoyancy to the kicking block 9 and support, can provide and remove reliable and stable buffering of rolling, and need not to change the spring, only need through water injection pipe 10 to annotate water in 7 water tank and can keep the water yield in 7, thereby make this buffer gear more reliable and more stable, and life greatly increased, and then the practicality of this equipment has been improved.
Preferably, in order to convert the horizontal movement of the moving roller 6 into the lifting movement of the pressing plate 8, the transmission assembly comprises a first air cylinder 11, an air pipe 12 and a second air cylinder 13, a cylinder body of the first air cylinder 11 is horizontally fixed in the crushing box 2, an air rod of the first air cylinder 11 is fixedly connected with the moving roller 6, a cylinder body of the second air cylinder 13 is vertically fixed at the top of the water tank 7, the bottom end of the air rod of the second air cylinder 13 is fixedly connected with the pressing plate 8, and the cylinder body of the first air cylinder 11 is communicated with the cylinder body of the second air cylinder 13 through the air pipe 12. When the movable roller 6 translates, the air rod of the first air cylinder 11 is driven to move, so that the air amount in the cylinder body of the first air cylinder 11 is reduced, the air in the cylinder body of the first air cylinder 11 and the air in the cylinder body of the second air cylinder 13 flow through the air pipe 12, the air rod of the second air cylinder 13 is driven to move, and the pressing plate 8 is lifted and lowered.
Preferably, in order to limit the movement of the floating block 9, the limiting unit comprises a limiting ring 14, a limiting rod 15 and a convex plate 16, the convex plate 16 is fixed at the top end of the limiting rod 15, the bottom end of the limiting rod 15 is fixed at the bottom inside the water tank 7, the limiting ring 14 is sleeved on the limiting rod 15, and the limiting ring 14 is fixedly connected with the floating block 9. The moving direction of the limiting ring 14 is fixed through the limiting rod 15 fixed at the bottom in the water tank 7, and the limiting ring 14 is fixedly connected with the floating block 9, so that the moving direction of the floating block 9 is fixed, the floating block 9 is always positioned under the pressure plate 8, and meanwhile, the sliding range of the limiting ring 14 is limited through the convex plate 16, and the limiting ring 14 is prevented from being separated from the limiting rod 15.
As shown in fig. 2, the alarm assembly includes a power supply 17, a speaker 18, a first contact 19 and a second contact 20, the power supply 17 and the speaker 18 are both fixed on the water tank 7, the first contact 19 is fixed on the inner wall of one side of the water tank 7, the second contact 20 is fixed on one side of the floating block 9, the connection line of the first contact 19 and the second contact 20 is perpendicular to the horizontal plane, two ends of the speaker 18 are respectively connected with the second contact 20 and one end of the power supply 17, and the other end of the power supply 17 is connected with the first contact 19.
Along with the natural evaporation of water, the water yield in the water tank 7 reduces, and the water level reduces for the height of floating block 9 also reduces, and floating block 9 drives second contact 20 and moves down, and when floating block 9 downward movement distance was too big, second contact 20 contacted with first contact 19, made speaker 18 and power 17 be in a return circuit that switches on, and power 17 switched on for speaker 18 makes the sound production, reminds the workman to supply clear water to in the water tank 7.
Preferably, in order to limit the water level, a drain pipe 21 is provided on a side of the water tank 7 away from the first contact 19, and the drain pipe 21 is located below the first contact 19. In order to prevent the water level from being excessively high while a worker adds water into the water tank 7 through the water injection pipe 10, the first contact 19 is corroded, the drain pipe 21 is provided, and when the water level is excessively high, excessive water is discharged through the drain pipe 21, thereby limiting the maximum water level in the water tank 7.
Preferably, in order to enhance the crushing effect, the surfaces of the moving roller 6 and the fixed roller 5 are provided with grains. Through addding the line, increased the roughness between removal roller 6 and the fixed roll 5 surface to when conveniently removing roller 6 and the rotation of fixed roll 5, the effort of increase and mineral aggregate contact has thereby strengthened crushing effect.
This mineral aggregate breaker is when the operation, the displacement of removal roller 6 at the horizontal direction turns into clamp plate 8 at the lift removal of vertical direction through drive assembly, clamp plate 8 supports with kicking block 9 and leans on, make kicking block 9 carry out lift removal in water tank 7, along with the lift of kicking block 9, the part that kicking block 9 immerges the aquatic changes, make the buoyancy that kicking block 9 received also change thereupon, the holding power to clamp plate 8 changes, clamp plate 8 passes through drive assembly reaction on removing roller 6, thereby realize the buffer protection to the removal of removal roller 6, compare in traditional buffering protection that utilizes the spring, because the buoyancy that kicking block 9 received receives the influence of the water yield in the water tank 7, the unusual circumstances such as corrosion can not take place, ageing, damage, make this buffer gear more stable and reliable its life increase by a wide margin, the practicality of this equipment has been improved.
Compared with the prior art, this mineral aggregate breaker changes through the lift of floating block 9 in water tank 7 among the buffer gear, and the buoyancy that arouses to receive changes, cushions the protection to removing roller 6 through clamp plate 8 and drive assembly, compares in utilizing the spring to protect, and this buffer gear can not take place the unusual circumstances such as corrosion, ageing, damage for this buffer gear more reliable and stable its life increases by a wide margin, has improved the practicality of this equipment.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (6)
1. The mineral aggregate crusher is characterized by comprising a hopper (1), a crushing box (2), a discharge pipe (3), a buffering mechanism and a plurality of support legs (4), wherein the support legs (4) are fixed below the crushing box (2), the hopper (1) and the discharge pipe (3) are respectively fixed above and below the crushing box (2), the connecting line of the hopper (1) and the discharge pipe (3) is vertical to the horizontal plane, a fixed roller (5) and a movable roller (6) are arranged in the crushing box (2), the movable roller (6) is connected with the buffering mechanism, the fixed roller (5) is positioned on one side of the movable roller (6) far away from the buffering mechanism, and the connecting line of the hopper (1) and the discharge pipe (3) is positioned between the fixed roller (5) and the movable roller (6);
buffer gear includes water tank (7), drive assembly, clamp plate (8), floating block (9), water injection pipe (10) and two spacing units, the top at water tank (7) is fixed in water injection pipe (10), water injection pipe (10) and water tank (7) intercommunication, clamp plate (8), floating block (9), water injection pipe (10) and two spacing units all are located water tank (7), clamp plate (8) are located floating block (9) directly over, clamp plate (8) level sets up, floating block (9) support by the below at clamp plate (8), floating block (9) are located between two spacing units, clamp plate (8) are connected with removal roller (6) through drive assembly.
2. The mineral aggregate crusher according to claim 1, characterized in that the transmission assembly comprises a first cylinder (11), an air pipe (12) and a second cylinder (13), wherein the cylinder body of the first cylinder (11) is horizontally fixed in the crushing box (2), the air rod of the first cylinder (11) is fixedly connected with the movable roller (6), the cylinder body of the second cylinder (13) is vertically fixed at the top in the water tank (7), the bottom end of the air rod of the second cylinder (13) is fixedly connected with the pressure plate (8), and the cylinder body of the first cylinder (11) is communicated with the cylinder body of the second cylinder (13) through the air pipe (12).
3. The mineral aggregate crusher according to claim 1, characterized in that the limiting unit comprises a limiting ring (14), a limiting rod (15) and a convex plate (16), the convex plate (16) is fixed at the top end of the limiting rod (15), the bottom end of the limiting rod (15) is fixed at the bottom inside the water tank (7), the limiting ring (14) is sleeved on the limiting rod (15), and the limiting ring (14) is fixedly connected with the floating block (9).
4. The mineral aggregate crusher according to claim 1, characterized in that the buffering mechanism further comprises an alarm assembly, the alarm assembly comprises a power supply (17), a speaker (18), a first contact (19) and a second contact (20), the power supply (17) and the speaker (18) are both fixed on the water tank (7), the first contact (19) is fixed on the inner wall of one side of the water tank (7), the second contact (20) is fixed on one side of the floating block (9), the connection line of the first contact (19) and the second contact (20) is vertical to the horizontal plane, two ends of the speaker (18) are respectively connected with the second contact (20) and one end of the power supply (17), and the other end of the power supply (17) is connected with the first contact (19).
5. Mineral aggregate crusher according to claim 4, characterized in that the side of the water tank (7) remote from the first contact point (19) is provided with a drain pipe (21), which drain pipe (21) is located below the first contact point (19).
6. The mineral breaker according to claim 1, characterized in that the surfaces of the mobile roll (6) and of the fixed roll (5) are provided with a texture.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201920158156.0U CN210279287U (en) | 2019-01-29 | 2019-01-29 | Mineral aggregate crusher |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201920158156.0U CN210279287U (en) | 2019-01-29 | 2019-01-29 | Mineral aggregate crusher |
Publications (1)
Publication Number | Publication Date |
---|---|
CN210279287U true CN210279287U (en) | 2020-04-10 |
Family
ID=70059559
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201920158156.0U Expired - Fee Related CN210279287U (en) | 2019-01-29 | 2019-01-29 | Mineral aggregate crusher |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN210279287U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN117739763A (en) * | 2023-12-20 | 2024-03-22 | 核工业井巷建设集团有限公司 | TBM tunnel portal blasting method |
-
2019
- 2019-01-29 CN CN201920158156.0U patent/CN210279287U/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN117739763A (en) * | 2023-12-20 | 2024-03-22 | 核工业井巷建设集团有限公司 | TBM tunnel portal blasting method |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN205182832U (en) | Ability automatic feed's high -efficient ore crusher | |
CN205032209U (en) | High -efficient environmental protection ore crusher | |
CN205550395U (en) | Efficient crusher for plastics processing | |
CN206027809U (en) | Automatic screening tooth roll crusher | |
CN201709362U (en) | Multifunctional apricot core crushing machine | |
CN210279287U (en) | Mineral aggregate crusher | |
CN202290161U (en) | Recession adjusting device for gear roller of gear roller type crushing machine | |
CN107159375A (en) | A kind of efficient ore pulverizer with positive feed function | |
CN205323848U (en) | High -efficient environmental protection shock attenuation mine breaker | |
CN104368415B (en) | A kind of center distance adjusting apparatus of rod-toothed crusher | |
CN102284320B (en) | Vertical grinding roller sand making machine | |
CN205517916U (en) | Jaw formula polycrystalline silicon silicon rod breaker | |
CN208230083U (en) | A kind of efficient trade waste grinding device | |
CN103418459A (en) | Crushing device | |
CN207655209U (en) | A kind of crusher being crushed size convenient for adjusting | |
CN215438136U (en) | Ore feeding chute with buffer box | |
CN202778603U (en) | Vertical type swing hammer crusher device system | |
CN208642778U (en) | A kind of hydraulic compound kibbler roll | |
CN208928253U (en) | A kind of particle breaker cleaning breaker roll | |
CN208979818U (en) | A kind of coke platform scrapper conveyor | |
CN202087348U (en) | High efficiency impact crushing machine with big crushing cavity | |
CN221413191U (en) | Stone crusher suitable for engineering construction is used | |
CN202071328U (en) | Safety device of screw extrusion machine | |
CN206315846U (en) | Unqualified positive poleb crusher | |
CN205379920U (en) | Strike superfine milling machine |
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: 20200410 |
|
CF01 | Termination of patent right due to non-payment of annual fee |