CN210911593U - A pull compaction device for reacting glue pitch waterproofing membrane - Google Patents
A pull compaction device for reacting glue pitch waterproofing membrane Download PDFInfo
- Publication number
- CN210911593U CN210911593U CN201921771187.XU CN201921771187U CN210911593U CN 210911593 U CN210911593 U CN 210911593U CN 201921771187 U CN201921771187 U CN 201921771187U CN 210911593 U CN210911593 U CN 210911593U
- Authority
- CN
- China
- Prior art keywords
- fixed beam
- traction
- roller
- sliding
- support frame
- 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
- 238000005056 compaction Methods 0.000 title claims abstract description 78
- 239000012528 membrane Substances 0.000 title claims description 20
- 238000004078 waterproofing Methods 0.000 title claims description 20
- 239000003292 glue Substances 0.000 title description 4
- 239000000463 material Substances 0.000 claims abstract description 14
- 239000010426 asphalt Substances 0.000 claims abstract description 9
- 230000000149 penetrating effect Effects 0.000 claims abstract description 6
- 238000003780 insertion Methods 0.000 claims description 8
- 230000037431 insertion Effects 0.000 claims description 8
- 230000000694 effects Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
Images
Landscapes
- Road Paving Machines (AREA)
Abstract
The utility model relates to a traction compaction device for reacting sticky asphalt waterproof coiled materials, which comprises a frame, wherein the frame comprises two support frames and a fixed beam, the traction compaction device also comprises a traction roller and a compaction roller, and the support frames are additionally provided with a driving component for driving the traction roller to rotate; sliding blocks are respectively additionally arranged at the rotating connection positions of the two ends of the compaction roller and the support frame, sliding chutes for the sliding blocks to slide along the vertical direction are formed in the support frame, a connecting plate for connecting the two sliding blocks is horizontally additionally arranged above the compaction roller, and an adjusting assembly for driving the connecting plate to move in the vertical direction is additionally arranged on the fixed beam; the adjusting component comprises a screw rod vertically penetrating through the middle of the fixed beam and connected with the rotating middle of the connecting plate, and the screw rod is in threaded connection with the fixed beam. The utility model has the advantages that: the device has the characteristic of being capable of quickly adjusting the distance between the traction roller and the compaction roller.
Description
Technical Field
The utility model belongs to the technical field of waterproofing membrane makes and specifically relates to a pull compaction device for reacting and glue pitch waterproofing membrane is related to.
Background
Most of the existing waterproof coiled materials are asphalt waterproof coiled materials, which comprise polyester fiber non-woven fabrics used as a base, an impregnated covering layer attached to the base and a plastic film used as an anti-sticking isolation layer. Wherein, the drawing and compacting device is an indispensable device in the process of manufacturing the waterproof roll material, and the function of the drawing and compacting device is mainly to compact the waterproof roll material. Draw compaction device mainly includes parallel arrangement's carry over pinch rolls and compaction roller, after the child base is stained with and attaches the antiseized isolation layer of pitch, will be sent into between carry over pinch rolls and the compaction roller, wherein, rely on compaction roller and carry over pinch rolls with waterproofing membrane compression moulding, rely on the carry over pinch rolls to make waterproofing membrane remove along the direction that production flow specified to reach the compaction and pull waterproofing membrane's effect. In the process, the position of the compaction roller needs to be adjusted, so that the gap between the compaction roller and the traction roller can be adjusted, and the thickness of the compacted waterproof roll can be adjusted.
In traditional traction compaction device, independent adjusting components are respectively arranged at two ends of a compaction roller, and in the process of adjusting the compaction roller, the adjusting component at one end of the compaction roller is adjusted firstly, and then the compaction device at the other end of the compaction roller is adjusted. This adjustment is somewhat wasteful of worker time.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a pull compaction device for reacting glue pitch waterproofing membrane, its advantage is: the device has the characteristic of being capable of quickly adjusting the distance between the traction roller and the compaction roller.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme: the traction compaction device for the reaction of the asphalt-bonded waterproof coiled material comprises a rack, wherein the rack comprises two support frames which are vertically and symmetrically arranged, a fixed beam which is fixedly connected to the tops of the two support frames, a traction roller of which two ends are respectively and rotatably connected to the support frames and horizontally arranged, and a compaction roller of which two ends are respectively and rotatably connected to the support frames and horizontally arranged above the traction roller, and a driving assembly for driving the traction roller to rotate is additionally arranged on the support frames;
sliding blocks are additionally arranged at the positions where the two ends of the compaction roller are rotatably connected with the support frame respectively, sliding grooves for the sliding blocks to slide along the vertical direction are formed in the support frame, a connecting plate for connecting the two sliding blocks is horizontally and additionally arranged above the compaction roller, and an adjusting assembly for driving the connecting plate to move in the vertical direction is additionally arranged on the fixed beam;
the adjusting component comprises a screw rod vertically penetrating through the middle of the fixed beam and connected with the rotating middle of the connecting plate, and the screw rod is in threaded connection with the fixed beam.
Through adopting above-mentioned technical scheme, the compaction roller is located the top of carry over pinch rolls, and there is the interval between them before both, waterproofing membrane passes interval between them, carry waterproofing membrane through the carry over pinch rolls, the compaction roller carries out the compaction to it, waterproofing membrane's compaction has been realized, when the interval between compaction roller and the carry over pinch rolls is adjusted to needs, rotate the screw rod, it removes to drive the vertical direction of screw rod, the screw rod drives the vertical direction of connecting plate and removes, and then it removes to drive the vertical direction of compaction roller, interval between up to compaction roller and carry over pinch rolls before both reaches the staff needs, through this setting, only need twist the hand wheel through revolving, can realize adjusting the interval between compaction roller and the carry over pinch rolls.
The utility model discloses further set up to: the driving assembly comprises a motor, a driving gear and a driven gear, the driving gear is coaxially connected with a rotating shaft of the motor, the driven gear is coaxially connected with one end of the traction roller, and the driven gear is meshed with the driving gear.
Through adopting above-mentioned technical scheme, the motor starts, drives the driving gear and rotates, and then drives driven gear and rotate, has realized the traction effect of carry over pinch rolls to drive assembly simple structure, the drive is steady.
The utility model discloses further set up to: and a hand wheel is additionally arranged at one end of the screw rod penetrating through the fixed beam.
By adopting the technical scheme, the hand wheel rotates the transmission rod more easily and labor-saving, so that the adjustment of workers is more convenient.
The utility model discloses further set up to: the hand wheel is in threaded connection with the screw rod, and a bolt is horizontally arranged at the threaded connection position of the hand wheel and the screw rod in a penetrating mode.
Through adopting above-mentioned technical scheme, hand wheel and screw rod threaded connection make things convenient for the staff to install the hand wheel on the screw rod, add and establish the bolt, when preventing to revolve wrong hand wheel, the hand wheel takes place relative rotation with the screw rod, and then influences the staff and revolves wrong screw rod and rotate.
The utility model discloses further set up to: the sliding strip is additionally arranged on the end face of the sliding block in sliding connection with the sliding groove in the direction towards the sliding groove, and a groove for the sliding strip to slide is formed in the position, right facing the sliding strip, of the sliding groove in the vertical direction.
Through adopting above-mentioned technical scheme, through setting up draw runner and recess, play a spacing effect when sliding along the spout to the slider, guarantee that the slider slides along the vertical direction of spout.
The utility model discloses further set up to: the circumferential surface of the compaction roller is uniformly provided with a plurality of bulges.
Through adopting above-mentioned technical scheme, make the compaction effect of compaction roller better.
The utility model discloses further set up to: and the two end parts of the compaction roller are rotationally connected with the sliding block through bearings.
Through adopting above-mentioned technical scheme, guarantee that the driven rotation of compaction roller is lighter more, reduce the frictional force between compaction roller and the waterproofing membrane.
The utility model discloses further set up to: the fixed beam can be dismantled with the support frame and be connected, the last port of spout is contradicted with the lower terminal surface of fixed beam and is connected, add between fixed beam and the support frame and be equipped with the retaining member that is used for locking the fixed beam.
Through adopting above-mentioned technical scheme, the locking piece is unloaded to the pine, detaches the support frame with the fixed beam, can remove the support frame with the slider, makes things convenient for the staff to clear up the compaction roller.
The utility model discloses further set up to: the retaining member includes that the vertical fixed beam up end tip of passing rotates the inserted bar of being connected, with fixed beam lower tip fixed connection's cardboard and with the inserted bar upper end with the inserted bar ring soon of being connected, the cardboard is located the support frame, set up the sliding tray that supplies the cardboard to slide into the support frame along vertical direction on fixed beam and the support frame, it holds and supplies cardboard pivoted rotation groove to have seted up in the support frame, the one end and the sliding tray in rotation groove communicate mutually.
Through adopting above-mentioned technical scheme, when retaining member locking fixed beam, the cardboard is located the rotation inslot of support frame, and the cardboard is not just to the sliding tray, when needs dismantle the fixed beam, open the retaining member, revolve soon to the rotatory ring of twisting of the direction that is close to the sliding tray earlier, it is just to the sliding tray position to reach the cardboard, then upwards take out from the inserted bar along the sliding tray, leave the fixed beam position completely until the inserted bar, can open the retaining member, make things convenient for the staff fixed with open the retaining member, and then make things convenient for the staff to detach the compaction roller and clear up it.
To sum up, the utility model discloses a beneficial technological effect does:
1. by additionally arranging the adjusting assembly, the distance between the compaction roller and the traction roller can be adjusted more conveniently by workers;
2. the fixed beam is detachably connected with the support frame through the locking piece, so that the worker can detach the compaction roller conveniently and clean the compaction roller.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic diagram of the explosion structure of the present invention.
Fig. 3 is a partial sectional view of the present invention.
Fig. 4 is a partially enlarged schematic view of a portion a in fig. 3.
In the figure, 1, a frame; 11. a support frame; 111. a chute; 112. a groove; 12. a fixed beam; 2. a traction roller; 3. a compaction roller; 31. a protrusion; 32. a bearing; 4. a drive assembly; 41. a motor; 42. a driving gear; 43. a driven gear; 5. a slider; 51. a slide bar; 52. a connecting plate; 6. an adjustment assembly; 61. a screw; 62. a hand wheel; 63. a bolt; 7. a locking member; 71. inserting a rod; 72. clamping a plate; 73. screwing the ring; 74. a sliding groove; 75. the groove is rotated.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example (b): as shown in figure 1, for the utility model discloses a traction compaction device for reacting asphalt-sticking waterproof coiled material, which comprises a frame 1, a traction roller 2 and a compaction roller 3, the frame 1 comprises two support frames 11 and a fixed beam 12, the two support frames 11 are respectively symmetrically and vertically arranged on the ground, the fixed beam 12 is respectively connected with the tops of the two support frames 11, the fixed beam 12 is horizontally arranged, the two ends of the traction roller 2 are respectively rotatably connected with the lower end parts of the two support frames 11, the traction roller 2 is horizontally arranged, a driving assembly 4 for driving the traction roller 2 to rotate is arranged on the support frame 11, the driving assembly 4 comprises a motor 41, a driving gear 42 and a driven gear 43, the motor 41 is fixed below the support frames 11 and positioned at one side of one end of the traction roller 2, the driving gear 42 is coaxially fixedly connected with the rotating shaft of the motor 41, the driven gear 43 is coaxially fixedly, and driving gear 42 and driven gear 43 mesh mutually, rotate through motor 41 and drive driving gear 42 and rotate, and driving gear 42 drives driven gear 43 and rotates, and driven gear 43 drives carry over pinch rolls 2 and rotates, has reached carry over pinch rolls 2 effect of waterproofing membrane forward.
As shown in fig. 2 and 3, the compaction roller 3 is located right above the traction roller 2, a plurality of protrusions 31 are uniformly distributed on the circumferential surface of the compaction roller 3 for better compacting the waterproof coiled material, two ends of the compaction roller 3 are respectively and rotatably connected with a slider 5, the slider 5 is rotatably connected with the compaction roller 3 through a bearing 32, a supporting frame 11 is vertically provided with a chute 111 for accommodating and allowing the slider 5 to slide, a connecting plate 52 for connecting the two sliders 5 together is arranged in the direction of the compaction roller 3, the connecting plate 52 is horizontally arranged, the fixed beam 12 is provided with an adjusting assembly 6 for driving the connecting plate 52 to vertically move, the adjusting assembly 6 comprises a screw 61 and a hand wheel 62, a vertical thread of the bolt penetrates through the middle part of the fixed beam 12 and is rotatably connected with the middle part of the connecting plate 52, the hand wheel 62 is in threaded connection with the screw 61, and a bolt 63 penetrates through the threaded connection part of the hand wheel 62, when the hand wheel 62 is prevented from being screwed, the hand wheel 62 and the screw 61 rotate relatively, and further the rotation of the screw 61 is influenced.
As shown in fig. 2, a sliding bar 51 is fixedly connected to the end surface of the sliding block 5 facing the sliding groove 111, a groove 112 for sliding the sliding bar 51 is formed in the position, facing the sliding bar 51, of the sliding groove 111 along the vertical direction, the sliding bar 51 is set to be a trapezoid bar, the groove 112 is set to be a trapezoid groove, and by setting the sliding bar 51 and the groove 112, the sliding block 5 is limited when sliding along the sliding groove 111, so that the sliding block 5 is ensured to slide along the vertical direction of the sliding groove 111.
As shown in fig. 2, the fixed beam 12 is detachably connected to two support frames 11, and the upper end of the sliding slot 111 formed on the support frame 11 is connected to the lower end surface of the fixed beam 12 in an abutting manner, when the fixed beam 12 is detached from the support frame 11, the sliding block 5 can be moved away from the support frame 11 through the upper end of the sliding slot 111, with reference to fig. 3 and 4, a locking member 7 for locking the fixed beam 12 is disposed between the fixed beam 12 and the support frame 11, the locking member 7 includes an insertion rod 71, a locking plate 72 and a screwing ring 73, the insertion rod 71 vertically penetrates through one end of the fixed beam 12, and the insertion rod 71 is partially inserted into the support frame 11, the locking plate 72 is fixedly connected to the lower end of the insertion rod 71 and is located inside the support frame 11, the insertion rod 71 is rotatably connected to both the fixed beam 12 and the support frame 11, the fixed beam 12 and the support frame 11 are vertically provided with a sliding slot 74 for inserting the locking plate 72 into, and one end of the rotation groove 75 communicates with the slide groove 74.
When retaining member 7 locks fixed beam 12, cardboard 72 is located the rotation groove 75 of support frame 11, and cardboard 72 is not just to sliding tray 74, when needs dismantle fixed beam 12, open retaining member 7, twist soon ring 73 to the direction rotation that is close to sliding tray 74 earlier, until cardboard 72 is just to sliding tray 74 position, then upwards take out from inserted bar 71 along sliding tray 74, leave fixed beam 12 position completely until inserted bar 71, can open retaining member 7, make things convenient for the staff to fix and open retaining member 7, and then make things convenient for the staff to detach compaction roller 3 and clear up it.
The implementation principle of the embodiment is as follows: when using this draw compaction device compaction waterproofing membrane, adjust the interval between compaction roller 3 and the carry over pinch rolls 2 earlier, revolve wrong hand wheel 62, until the interval between compaction roller 3 and the carry over pinch rolls 2 accords with the staff needs, then start drive assembly 4, motor 41 drives the carry over pinch rolls 2 and rotates, and then has realized continuously the compaction to waterproofing membrane.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (9)
1. The traction compaction device for the reaction of the asphalt-bonded waterproof coiled material comprises a rack (1), wherein the rack (1) comprises two support frames (11) which are vertically and symmetrically arranged and a fixed beam (12) which is fixedly connected to the tops of the two support frames (11), and is characterized by further comprising a traction roller (2) of which two ends are respectively rotatably connected to the support frames (11) and horizontally arranged and a compaction roller (3) of which two ends are respectively rotatably connected to the support frames (11) and horizontally arranged above the traction roller (2), wherein a driving assembly (4) for driving the traction roller (2) to rotate is additionally arranged on each support frame (11);
the two ends of the compaction roller (3) are respectively and additionally provided with a sliding block (5) at the rotary connection part with the support frame (11), the support frame (11) is provided with a sliding chute (111) for the sliding block (5) to slide along the vertical direction, a connecting plate (52) for connecting the two sliding blocks (5) is horizontally and additionally arranged above the compaction roller (3), and the fixed beam (12) is additionally provided with an adjusting component (6) for driving the connecting plate (52) to move along the vertical direction;
the adjusting assembly (6) comprises a screw rod (61) which vertically penetrates through the middle of the fixed beam (12) and is connected with the rotating middle of the connecting plate (52), and the screw rod (61) is in threaded connection with the fixed beam (12).
2. The traction compacting device for the reaction sticky asphalt waterproof roll according to claim 1, characterized in that the driving assembly (4) comprises a motor (41), a driving gear (42) coaxially connected with the rotating shaft of the motor (41), and a driven gear (43) coaxially connected with one end of the traction roller (2) and meshed with the driving gear (42).
3. The traction compaction device for the reactive sticky asphalt waterproof coiled material is characterized in that a hand wheel (62) is additionally arranged at one end, penetrating through the fixed beam (12), of the screw rod (61).
4. The traction compaction device for the reaction sticky asphalt waterproof coiled material is characterized in that the hand wheel (62) is in threaded connection with the screw rod (61), and a bolt (63) is horizontally arranged at the threaded connection part of the hand wheel (62) and the screw rod (61).
5. The traction compaction device for the reactive sticky asphalt waterproof coiled material is characterized in that a sliding strip (51) is additionally arranged on the end face, in sliding connection with the sliding groove (111), of the sliding block (5) in the direction towards the sliding groove (111), and a groove (112) for the sliding strip (51) to slide is vertically formed in the position, opposite to the sliding strip (51), of the sliding groove (111).
6. The drawing and compacting device for the reactive sticky asphalt waterproofing membrane according to claim 1, characterized in that a plurality of protrusions (31) are uniformly distributed on the circumferential surface of the compacting roller (3).
7. The drawing and compacting device for the reactive sticky asphalt waterproofing membrane according to claim 1, characterized in that the two ends of the compacting roller (3) are rotatably connected with the sliding block (5) through a bearing (32).
8. The traction compaction device for the reaction of the sticky asphalt waterproof coiled material is characterized in that the fixed beam (12) is detachably connected with the support frame (11), the upper end opening of the sliding groove (111) is in interference connection with the lower end face of the fixed beam (12), and a locking piece (7) used for locking the fixed beam (12) is additionally arranged between the fixed beam (12) and the support frame (11).
9. The traction compaction device for the reaction asphalt-sticking waterproof coiled material is characterized in that the locking member (7) comprises an insertion rod (71) vertically penetrating through the end part of the upper end face of the fixed beam (12) and rotatably connected with the fixed beam (12), a clamping plate (72) fixedly connected with the lower end part of the insertion rod (71) and a screwing ring (73) connected with the upper end part of the insertion rod (71), the clamping plate (72) is positioned in the support frame (11), the fixed beam (12) and the support frame (11) are provided with a sliding groove (74) along the vertical direction for the clamping plate (72) to slide into the support frame (11), the support frame (11) is internally provided with a rotating groove (75) for accommodating and rotating the clamping plate (72), and one end of the rotating groove (75) is communicated with the sliding groove (74).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921771187.XU CN210911593U (en) | 2019-10-18 | 2019-10-18 | A pull compaction device for reacting glue pitch waterproofing membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921771187.XU CN210911593U (en) | 2019-10-18 | 2019-10-18 | A pull compaction device for reacting glue pitch waterproofing membrane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210911593U true CN210911593U (en) | 2020-07-03 |
Family
ID=71368181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921771187.XU Expired - Fee Related CN210911593U (en) | 2019-10-18 | 2019-10-18 | A pull compaction device for reacting glue pitch waterproofing membrane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210911593U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112871585A (en) * | 2021-01-14 | 2021-06-01 | 邱中华 | Processing system is used in preparation of pitch polymer waterproofing membrane |
-
2019
- 2019-10-18 CN CN201921771187.XU patent/CN210911593U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112871585A (en) * | 2021-01-14 | 2021-06-01 | 邱中华 | Processing system is used in preparation of pitch polymer waterproofing membrane |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210911593U (en) | A pull compaction device for reacting glue pitch waterproofing membrane | |
| CN110538760B (en) | Carbon fiber prepreg production equipment and production process | |
| CN109940902B (en) | Carbon fiber tube forming device, method for processing carbon fiber tube and carbon fiber tube | |
| CN108687694A (en) | A kind of electronic product machining clamping device | |
| CN219813096U (en) | Twisting mechanism | |
| CN211306676U (en) | Automatic bag sealer is with dust collector | |
| CN208992512U (en) | A kind of electronic product machining clamping device | |
| CN218312432U (en) | Steel sheet grinding device for automobile machining | |
| CN113103495B (en) | Forming tractor for plastic steel tile processing and plastic steel tile processing technology | |
| CN113246584B (en) | Continuous production method and equipment of sandwich board | |
| CN214782114U (en) | Rotation anchor clamps for rotation type vacuum coating machine | |
| CN212865387U (en) | Distance cutting device is used in non-woven fabrics processing | |
| CN211020823U (en) | Tea leaf rolling machine | |
| CN112319120A (en) | Wall paper laminating device suitable for wall corner | |
| CN217051049U (en) | Cable integration device for electrical engineering automation | |
| CN217342053U (en) | Back painting machine for wallboard processing | |
| CN216004591U (en) | Coiled material thickness control device | |
| CN220079432U (en) | Superfine fiber leather dyeing device | |
| CN216025911U (en) | Glue spreader | |
| CN221433678U (en) | Metering type gluing structure of gumming machine | |
| CN216037645U (en) | Automatic feeding device of color printing machine | |
| CN220219275U (en) | Raw material grinding equipment for high-temperature impregnating resin processing | |
| CN221391434U (en) | Leveling device convenient to adjust | |
| CN217802633U (en) | Rubber mixing machine for rubber processing | |
| CN217102342U (en) | Traction equipment is used in production of compound waterproofing membrane of polyethylene polypropylene fibre polymer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200703 |