CN214131845U - Be used for dustless rubble device of building engineering environment-friendly - Google Patents
Be used for dustless rubble device of building engineering environment-friendly Download PDFInfo
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- CN214131845U CN214131845U CN202022525881.2U CN202022525881U CN214131845U CN 214131845 U CN214131845 U CN 214131845U CN 202022525881 U CN202022525881 U CN 202022525881U CN 214131845 U CN214131845 U CN 214131845U
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- Prior art keywords
- water tank
- fixedly connected
- box
- inboard
- gravel
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 78
- 239000004575 stone Substances 0.000 claims abstract description 41
- 239000000463 material Substances 0.000 claims abstract description 33
- 230000005540 biological transmission Effects 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 6
- 238000007599 discharging Methods 0.000 abstract description 7
- 238000009435 building construction Methods 0.000 abstract 1
- 239000000428 dust Substances 0.000 description 14
- 238000010276 construction Methods 0.000 description 3
- 229920001821 foam rubber Polymers 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 241001504664 Crossocheilus latius Species 0.000 description 1
- 206010024796 Logorrhoea Diseases 0.000 description 1
- 206010057071 Rectal tenesmus Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 208000012271 tenesmus Diseases 0.000 description 1
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Abstract
The utility model belongs to the technical field of building construction, in particular to an environment-friendly dust-free stone crushing device for building engineering, which comprises a stone crushing box, a water tank and a storage box, wherein the inner side of the top end surface of the stone crushing box is communicated with a feed hopper, the rear end of the stone crushing box is fixedly connected with a first motor, the tail end of a main shaft of the first motor is fixedly connected with a stone crushing roller through a rotating shaft, and the right end of the stone crushing box is fixedly connected with a fan; the material after smashing gets into the storage case via the discharging pipe, and rotatory bolt drives the sliding plate and moves the size of adjusting the discharge gate of storage case rightly, and the third motor starts to drive and dials the board rotatory, dials the board rotation and drives the material at the storage incasement rotation, accords with the material discharge of the size of the discharge gate of storage case, can be effectively to the material after smashing classify, has reduced operating personnel's intensity of labour.
Description
Technical Field
The utility model belongs to the technical field of the construction, concretely relates to be used for dustless rubble device of building engineering environment-friendly.
Background
At construction's in-process, need smash the back and reuse large-scale stone to satisfy the user demand to different building materials, but traditional rubble device produces a large amount of dusts easily when using, influences the environment of surrounding, also threatens operating personnel's healthy, and traditional rubble device can only satisfy single rubble function, and the building stones after smashing are not of uniform size, screens greatly increased operating personnel's working strength once more.
The prior art has the following problems:
1. when the traditional stone crushing device is used, a large amount of dust is easily generated, the surrounding environment is affected, and the physical health of operators is threatened;
2. traditional rubble device can only satisfy single rubble function, and the building stones after smashing are not of uniform size, screens greatly increased operating personnel's working strength once more.
In order to solve the problems, the application provides an environment-friendly dust-free stone crushing device for constructional engineering.
SUMMERY OF THE UTILITY MODEL
To solve the problems set forth in the background art described above. The utility model provides a be used for dustless rubble device of building engineering environment-friendly has the effusion of having avoided rubble in-process dust, and it is healthy to have protected construction environment and operating personnel, and the while is convenient carries out the characteristics of size screening to the building stones after smashing.
In order to achieve the above object, the utility model provides a following technical scheme: an environment-friendly dust-free stone crushing device for building engineering comprises a stone crushing box, a water tank and a material storage box, wherein the inner side of the top end surface of the stone crushing box is communicated with a feed hopper, the rear end of the stone crushing box is fixedly connected with a first motor, the tail end of a main shaft of the first motor is fixedly connected with a stone crushing roller through a rotating shaft, the right end of the stone crushing box is fixedly connected with a fan, the left end of the fan is communicated with a first air pipe, the outer side of the first air pipe is fixedly connected with the stone crushing box, the inner side of the left end surface of the stone crushing box is fixedly connected with a second air pipe, the left end of the second air pipe is communicated with the water tank, the right end of the water tank is fixedly connected with the stone crushing box, the inner side of the top end surface of the water tank is slidably connected with a plug cover, the inner side of the left end surface of the water tank is communicated with a water discharge pipe, the outer side of the water discharge pipe is spirally connected with a screw cap, the inner side of the left end surface of the water tank is fixedly connected with a filter screen, and the left end of the water tank is fixedly connected with a second motor, the end of the second motor spindle is fixedly connected with a transmission rod, the outer side of the transmission rod is fixedly connected with a fan-shaped plate, the right end of the fan-shaped plate is fixedly connected with a sponge cushion, the bottom end of the gravel box is fixedly connected with a connecting rod, the bottom end of the connecting rod is fixedly connected with a storage box, the rear end of the storage box is fixedly connected with a third motor, the end of the third motor spindle is fixedly connected with a stirring plate through a rotating shaft, the inner side of the bottom end face of the storage box is slidably connected with a sliding plate, the left end of the sliding plate is rotatably connected with a bolt, the outer side of the bolt is spirally connected with the storage box, the bottom end of the gravel box is fixedly connected with a supporting leg, and the inner side of the bottom end face of the gravel box is communicated with a discharging pipe.
As the utility model relates to a be used for dustless rubble device of building engineering environment-friendly to be preferred, rubble case right-hand member face inboard is opened and is equipped with the air intake, the air intake of rubble case inboard with first tuber pipe fixed connection, first air outlet has been seted up to rubble case left end face inboard, the first air outlet of rubble case inboard with second tuber pipe fixed connection, the second air outlet has been seted up to water tank right-hand member face inboard, the second air outlet of water tank with the first air outlet intercommunication of rubble case, the second air outlet of water tank inboard with second tuber pipe fixed connection.
As the utility model relates to a be used for dustless rubble device of building engineering environment-friendly to be preferred, the water inlet has been seted up to water tank top terminal surface inboard, the water inlet inboard of water tank with gag sliding connection, the commentaries on classics hole has been seted up to water tank left end face inboard, the commentaries on classics downthehole side of water tank pass through the bearing with the transfer line rotates to be connected, the turn trough has been seted up to water tank right-hand member face inboard, the turn trough inboard of water tank pass through the bearing with the transfer line rotates to be connected.
As the utility model relates to a be used for dustless rubble device of building engineering environment-friendly to be preferred, the left side below inboard and the right side below inboard of rubble case all are the slope form setting.
As the utility model relates to a be used for dustless rubble device of building engineering environment-friendly to be preferred, storage case bottom face inboard is circular-arc setting, the spout has been seted up to storage case bottom face inboard, the spout of storage case inboard with sliding plate sliding connection, storage case bottom face inboard threaded hole has been seted up, the screw hole inboard of storage case with bolt screw connection, the spout of storage case with the screw hole intercommunication of storage case, the mounting groove has been seted up to sliding plate left end face inboard, the mounting groove inboard of sliding plate pass through the bearing with the bolt rotation is connected, the discharge gate has been seted up to storage case face inboard.
Compared with the prior art, the beneficial effects of the utility model are that:
1. first motor starts to drive the rotatory material that comes from the feeder hopper input of smashing by the garrulous stone roller, the tenesmus behind the comminuted, the fan starts to blow in the second tuber pipe with wind-force via the dust that first tuber pipe produced behind the rubble, the air admission water tank that has the dust, the second motor starts to drive the transfer line and rotates, the transfer line rotates and drives the rotation of sector plate, the rotatory dust that is stained with in the back adsorption air of the foam-rubber cushion of sector plate right-hand member, the air after the purification passes through filter screen discharge water tank, make the device can effectually carry out dustless operation, avoided because the produced dust of rubble is to the influence of surrounding environment, operating personnel's healthy safety has been protected.
2. The material after smashing gets into the storage case via the discharging pipe, and rotatory bolt drives the sliding plate and moves the size of adjusting the discharge gate of storage case rightly, and the third motor starts to drive and dials the board rotatory, dials the board rotation and drives the material at the storage incasement rotation, accords with the material discharge of the size of the discharge gate of storage case, can be effectively to the material after smashing classify, has reduced operating personnel's intensity of labour.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a rear view of the present invention;
fig. 3 is an enlarged view of the structure at a in fig. 1 according to the present invention;
in the figure: 1. a stone crushing box; 2. a feed hopper; 3. a first motor; 4. a stone crushing roller; 5. a fan; 6. a first air duct; 7. a second air duct; 8. a water tank; 9. a plug cover; 10. a drain pipe; 11. screwing a cover; 12. a filter screen; 13. a second motor; 14. a transmission rod; 15. a sector plate; 16. a sponge cushion; 17. a connecting rod; 18. a material storage box; 19. a third motor; 20. a poking plate; 21. a sliding plate; 22. a bolt; 23. supporting legs; 24. and (4) discharging the pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
As shown in fig. 1, 2 and 3;
fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a rear view of the present invention;
fig. 3 is an enlarged view of a structure in fig. 1 according to the present invention.
An environment-friendly dust-free stone crushing device for building engineering comprises a stone crushing box 1, a water tank 8 and a material storage box 18, wherein the inner side of the top end surface of the stone crushing box 1 is communicated with a feed hopper 2, the rear end of the stone crushing box 1 is fixedly connected with a first motor 3, the tail end of a main shaft of the first motor 3 is fixedly connected with a stone crushing roller 4 through a rotating shaft, the right end of the stone crushing box 1 is fixedly connected with a fan 5, the left end of the fan 5 is communicated with a first air pipe 6, the outer side of the first air pipe 6 is fixedly connected with the stone crushing box 1, the inner side of the left end surface of the stone crushing box 1 is fixedly connected with a second air pipe 7, the left end of the second air pipe 7 is communicated with the water tank 8, the right end of the water tank 8 is fixedly connected with the stone crushing box 1, the inner side of the top end surface of the water tank 8 is slidably connected with a plug cover 9, the inner side of the left end surface of the water tank 8 is communicated with a drain pipe 10, the outer side of the drain pipe 10 is spirally connected with a screw cover 11, the inner side of the water tank 8 is fixedly connected with a filter screen 12, and the left end surface of the water tank 8 is fixedly connected with a second motor 13, the end fixedly connected with transfer line 14 of 13 main shafts of second motor, the fixedly connected with sector plate 15 in the transfer line 14 outside, sector plate 15 right-hand member fixedly connected with foam- rubber cushion 16, 1 bottom fixedly connected with connecting rod 17 of rubble case, connecting rod 17 bottom fixedly connected with storage case 18, 18 rear end fixedly connected with third motor 19 of storage case, 19 main shaft ends of third motor are through pivot fixedly connected with stirring board 20, 18 bottom face inboard sliding connection of storage case has sliding plate 21, the sliding plate 21 left end rotates and is connected with bolt 22, the bolt 22 outside and 18 threaded connection of storage case, 1 bottom fixedly connected with supporting leg 23 of rubble case, 1 bottom face inboard intercommunication of rubble case has discharging pipe 24.
In this embodiment: the first motor 3 is started to drive the gravel crushing roller 4 to rotationally crush materials thrown in from the feed hopper 2, the materials are crushed and then fall down, the fan 5 is started to blow wind power into the second air pipe 7 through the first air pipe 6 to blow dust generated after gravel crushing, air mixed with the dust enters the water tank 8, the second motor 13 is started to drive the transmission rod 14 to rotate, the transmission rod 14 rotates to drive the sector plate 15 to rotate, the sponge cushion 16 at the right end of the sector plate 15 is rotationally wetted to adsorb the dust in the air, the purified air is discharged out of the water tank 8 through the filter screen 12, so that the device can effectively carry out dust-free operation, the influence of the dust generated by gravel on the surrounding environment is avoided, the crushed materials enter the storage tank 18 through the discharge pipe 24, the rotating bolt 22 drives the sliding plate 21 to move rightwards to adjust the size of the discharge port of the storage tank 18, and the third motor 19 is started to drive the stirring plate 20 to rotate, the poking plate 20 rotates to drive materials to rotate in the material storage box 18, the materials meeting the size of the discharge port of the material storage box 18 are discharged, the crushed materials can be effectively classified, and the labor intensity of operators is reduced.
As shown in fig. 1;
fig. 1 is a schematic view of the overall structure of the present invention.
In an optional embodiment, an air inlet is formed in the inner side of the right end face of the stone crushing box 1, the inner side of the air inlet of the stone crushing box 1 is fixedly connected with the first air pipe 6, a first air outlet is formed in the inner side of the left end face of the stone crushing box 1, the inner side of the first air outlet of the stone crushing box 1 is fixedly connected with the second air pipe 7, a second air outlet is formed in the inner side of the right end face of the water tank 8, the second air outlet of the water tank 8 is communicated with the first air outlet of the stone crushing box 1, and the inner side of the second air outlet of the water tank 8 is fixedly connected with the second air pipe 7.
In this embodiment: the air inlet through the rubble case 1 that sets up is convenient fixed to the installation of first tuber pipe 6, and the first air outlet through the rubble case 1 that sets up and the second air outlet of water tank 8 are convenient to be communicated rubble case 1 and water tank 8 through second tuber pipe 7.
As shown in fig. 1;
fig. 1 is a schematic view of the overall structure of the present invention.
In an alternative embodiment, the inside of the top end surface of the water tank 8 is provided with a water inlet, the inside of the water inlet of the water tank 8 is slidably connected with the plug cover 9, the inside of the left end surface of the water tank 8 is provided with a rotary hole, the inside of the rotary hole of the water tank 8 is rotatably connected with the transmission rod 14 through a bearing, the inside of the right end surface of the water tank 8 is provided with a rotary groove, and the inside of the rotary groove of the water tank 8 is rotatably connected with the transmission rod 14 through a bearing.
In this embodiment: the plug cover 9 is conveniently moved upwards in the water inlet of the water tank 8 through the arranged water inlet of the water tank 8 to open the water tank 8, and water is added into the water tank 8, and the transmission rod 14 is conveniently fixed in the water tank 8 through the arranged rotating hole of the water tank 8 and the rotating groove of the water tank 8.
As shown in fig. 1;
fig. 1 is a schematic view of the overall structure of the present invention.
In an alternative embodiment, the lower left inner side and the lower right inner side of the lithotripter box 1 are both arranged obliquely.
In this embodiment: because the left lower inboard and the right lower inboard of rubble case 1 all are the slope form setting for the kibbling material of passing through rubble roller 4 falls into rubble case 1 in landing to discharging pipe 24 and discharges, prevents that the material from piling up the normal use that influences the device in rubble case 1.
As shown in fig. 1 and 3;
fig. 1 is a schematic view of the overall structure of the present invention;
fig. 3 is an enlarged view of a structure in fig. 1 according to the present invention.
In an alternative embodiment, the inner side of the bottom end surface of the storage box 18 is arc-shaped, the inner side of the bottom end surface of the storage box 18 is provided with a chute, the inner side of the chute of the storage box 18 is slidably connected with the sliding plate 21, the inner side of the bottom end surface of the storage box 18 is provided with a threaded hole, the inner side of the threaded hole of the storage box 18 is spirally connected with the bolt 22, the chute of the storage box 18 is communicated with the threaded hole of the storage box 18, the inner side of the left end surface of the sliding plate 21 is provided with a mounting groove, the inner side of the mounting groove of the sliding plate 21 is rotatably connected with the bolt 22 through a bearing, and the inner side of the bottom end surface of the storage box 18 is provided with a discharge hole.
In this embodiment: because storage case 18 bottom end face inboard is circular-arc setting, makes things convenient for third motor 19 to start and drives the rotatory stirring material of stirring board 20 for the material that accords with the size of the discharge gate of storage case 18 is discharged, and through screw hole at storage case 18 and the mounting groove internal rotation bolt 22 of sliding plate 21, the bolt 22 rotation drives sliding plate 21 and moves the size of the discharge gate of adjusting storage case 18 in the spout of storage case 18 to the right, conveniently classifies the material.
The utility model discloses a theory of operation and use flow: the device uses an external power supply to supply power to the device for operation, when the device is used, the device is supported by the supporting legs 23, the material storage box 18 is fixed below the gravel box 1 by the connecting rods 17, the plug cover 9 is opened upwards to add water into the water tank 8, the first motor 3 is started to drive the gravel roller 4 to rotate and crush the materials thrown in from the feed hopper 2, the materials are crushed and then fall down, the fan 5 is started to blow the dust generated after the gravel into the second air pipe 7 by wind power through the first air pipe 6, the air mixed with the dust enters the water tank 8, the second motor 13 is started to drive the transmission rod 14 to rotate, the transmission rod 14 rotates to drive the sector plate 15 to rotate, the sponge cushion 16 at the right end of the sector plate 15 rotates to adsorb the dust in the air after being wetted, the purified air is discharged out of the water tank 8 through the filter screen 12, the device can effectively carry out dust-free operation, and avoids the influence of the dust generated by the gravel on the surrounding environment, the healthy safety of operating personnel has been protected, the material after smashing gets into storage case 18 via discharging pipe 24, rotatory bolt 22 drives sliding plate 21 and moves the size of the discharge gate of adjusting storage case 18 to the right, third motor 19 starts to drive and dials board 20 rotatory, dial board 20 rotatory drive material is at storage case 18 internal rotation, the material discharge of the size of the discharge gate that accords with storage case 18, can be effectively to categorised of the material after smashing, operating personnel's intensity of labour has been reduced, the device is unscrewed spiral cover 11 and is emitted sewage in the drain pipe 10 outside after finishing using.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The utility model provides a be used for dustless rubble device of building engineering environment-friendly which characterized in that: comprises a gravel box (1), a water tank (8) and a storage box (18), wherein the top end surface of the gravel box (1) is communicated with a feed hopper (2) in an inner side manner, the rear end of the gravel box (1) is fixedly connected with a first motor (3), the tail end of a main shaft of the first motor (3) is fixedly connected with a gravel roller (4) through a rotating shaft, the right end of the gravel box (1) is fixedly connected with a fan (5), the left end of the fan (5) is communicated with a first air pipe (6), the outer side of the first air pipe (6) is fixedly connected with the gravel box (1), the inner side of the left end surface of the gravel box (1) is fixedly connected with a second air pipe (7), the left end of the second air pipe (7) is communicated with the water tank (8), the right end of the water tank (8) is fixedly connected with the gravel box (1), and the inner side of the top end surface of the water tank (8) is slidably connected with a plug cover (9), the inner side of the left end face of the water tank (8) is communicated with a drain pipe (10), the outer side of the drain pipe (10) is spirally connected with a rotary cover (11), the inner side of the left end face of the water tank (8) is fixedly connected with a filter screen (12), the left end of the water tank (8) is fixedly connected with a second motor (13), the tail end of a main shaft of the second motor (13) is fixedly connected with a transmission rod (14), the outer side of the transmission rod (14) is fixedly connected with a sector plate (15), the right end of the sector plate (15) is fixedly connected with a sponge cushion (16), the bottom end of the gravel box (1) is fixedly connected with a connecting rod (17), the bottom end of the connecting rod (17) is fixedly connected with a storage box (18), the rear end of the storage box (18) is fixedly connected with a third motor (19), the tail end of the main shaft of the third motor (19) is fixedly connected with a stirring plate (20) through a rotating shaft, and the inner side of the bottom end face of the storage box (18) is slidably connected with a sliding plate (21), the left end of the sliding plate (21) is rotatably connected with a bolt (22), the outer side of the bolt (22) is in threaded connection with the material storage box (18), the bottom end of the gravel box (1) is fixedly connected with supporting legs (23), and the inner side of the bottom end face of the gravel box (1) is communicated with a discharge pipe (24).
2. The environment-friendly dust-free stone crushing device for building engineering according to claim 1, wherein: the utility model discloses a gravel box, including gravel box (1), second air outlet, first air outlet, second air outlet, the air intake inboard of gravel box (1) right-hand member face is seted up and is equipped with the air intake, the air intake inboard of gravel box (1) with first tuber pipe (6) fixed connection, first air outlet has been seted up to gravel box (1) left end face inboard, the first air outlet inboard of gravel box (1) with second tuber pipe (7) fixed connection, the second air outlet has been seted up to water tank (8) right-hand member face inboard, the second air outlet of water tank (8) with the first air outlet intercommunication of gravel box (1), the second air outlet inboard of water tank (8) with second tuber pipe (7) fixed connection.
3. The environment-friendly dust-free stone crushing device for building engineering according to claim 1, wherein: the water inlet has been seted up to water tank (8) top terminal surface inboard, the water inlet inboard of water tank (8) with gag (9) sliding connection, the commentaries on classics hole has been seted up to water tank (8) left end face inboard, the commentaries on classics hole inboard of water tank (8) through the bearing with transfer line (14) rotate and are connected, the commentaries on classics groove has been seted up to water tank (8) right end face inboard, the commentaries on classics inslot inboard of water tank (8) through the bearing with transfer line (14) rotate and are connected.
4. The environment-friendly dust-free stone crushing device for building engineering according to claim 1, wherein: the inner sides of the left lower part and the right lower part of the gravel box (1) are arranged in an inclined manner.
5. The environment-friendly dust-free stone crushing device for building engineering according to claim 1, wherein: the inner side of the bottom end face of the storage box (18) is arc-shaped, a sliding groove is formed in the inner side of the bottom end face of the storage box (18), the inner side of the sliding groove of the storage box (18) is connected with the sliding plate (21) in a sliding mode, a threaded hole is formed in the inner side of the bottom end face of the storage box (18), the inner side of the threaded hole of the storage box (18) is connected with the bolt (22) in a threaded mode, the sliding groove of the storage box (18) is communicated with the threaded hole of the storage box (18), a mounting groove is formed in the inner side of the left end face of the sliding plate (21), the inner side of the mounting groove of the sliding plate (21) is connected with the bolt (22) in a rotating mode through a bearing, and a discharge hole is formed in the inner side of the bottom end face of the storage box (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022525881.2U CN214131845U (en) | 2020-11-04 | 2020-11-04 | Be used for dustless rubble device of building engineering environment-friendly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022525881.2U CN214131845U (en) | 2020-11-04 | 2020-11-04 | Be used for dustless rubble device of building engineering environment-friendly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214131845U true CN214131845U (en) | 2021-09-07 |
Family
ID=77562156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022525881.2U Expired - Fee Related CN214131845U (en) | 2020-11-04 | 2020-11-04 | Be used for dustless rubble device of building engineering environment-friendly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214131845U (en) |
-
2020
- 2020-11-04 CN CN202022525881.2U patent/CN214131845U/en not_active Expired - Fee Related
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210907 |
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| CF01 | Termination of patent right due to non-payment of annual fee |