CN220117795U - Device for building aerated block bricks - Google Patents
Device for building aerated block bricks Download PDFInfo
- Publication number
- CN220117795U CN220117795U CN202321590077.XU CN202321590077U CN220117795U CN 220117795 U CN220117795 U CN 220117795U CN 202321590077 U CN202321590077 U CN 202321590077U CN 220117795 U CN220117795 U CN 220117795U
- Authority
- CN
- China
- Prior art keywords
- fixedly connected
- plate
- outlet pipe
- pipe
- mud outlet
- 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.)
- Active
Links
- 239000011449 brick Substances 0.000 title claims abstract description 29
- 230000000903 blocking effect Effects 0.000 claims abstract description 27
- 238000007790 scraping Methods 0.000 claims abstract description 20
- 230000008093 supporting effect Effects 0.000 claims abstract description 20
- 230000001681 protective effect Effects 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 36
- 230000000670 limiting effect Effects 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 4
- 239000004568 cement Substances 0.000 abstract description 32
- 230000000694 effects Effects 0.000 abstract description 4
- 238000007711 solidification Methods 0.000 abstract description 2
- 230000008023 solidification Effects 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 3
- 239000010802 sludge Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Landscapes
- Underground Or Underwater Handling Of Building Materials (AREA)
Abstract
The utility model belongs to the technical field of aerated block bricks, in particular to a device for building aerated block bricks, which comprises a brick building device; a mud outlet pipe is arranged at the end part of the bricklaying device; the outer wall of the mud outlet pipe is fixedly connected with a fixed block and is arranged in a circumferential array; a fixed rod is connected inside the fixed block in a sliding way; the other end of the fixed rod is fixedly connected with a protective cover plate; the end part of the protective cover plate is fixedly connected with a motor; the output end of the motor is fixedly connected with a guide supporting rod; can play the effect of supporting and spacing, and can adjust the interval of protective cover board and play mud pipe end department for it is inside to circulate to outside through the port of play mud pipe to reach the inside cement of scraping of mud pipe, guarantees the inside cleanness and the clean of play mud pipe, reduces the follow-up problem that appears the cement solidification and appear blocking up.
Description
Technical Field
The utility model belongs to the technical field of aerated block bricks, and particularly relates to a device for building aerated block bricks.
Background
In the construction process of a building site, an aerated block is required to be used for building, and in the building process, a full-automatic mechanical brickwork device is arranged on the current market and consists of a conveying belt, a mechanical clamping arm and a mud discharging device.
In the process of building the wall by the aerated block bricks, the aerated block bricks are clamped through the mechanical clamping arms, then the aerated block bricks are moved to the surface of the mud outlet pipe to be plastered, then the aerated block bricks are moved to the wall body through the mechanical clamping arms to be placed and built, and the whole process is processed through machinery, so that the construction progress of the building is effectively improved.
In the prior art, when bricks are laid by a mechanical clamping arm, a large amount of cement is accumulated in the mud outlet pipe, and when the wall is laid by a machine, the cement accumulated in the mud outlet pipe is solidified for a long time, so that the cement is blocked in the mud outlet pipe, and when the machine is restarted, the problem that the machine cannot work due to solidification and blocking of the mud outlet pipe is caused; therefore, a device for laying aerated block bricks is provided for solving the problems.
Disclosure of Invention
In order to make up the defects of the prior art and solve the problems in the background art, the device for building the aerated block bricks is provided.
The technical scheme adopted for solving the technical problems is as follows: the utility model relates to a device for building aerated block bricks, which comprises a brick building device; a mud outlet pipe is arranged at the end part of the bricklaying device; the outer wall of the mud outlet pipe is fixedly connected with a fixed block and is arranged in a circumferential array; a fixed rod is connected inside the fixed block in a sliding way; the other end of the fixed rod is fixedly connected with a protective cover plate; the end part of the protective cover plate is fixedly connected with a motor; the output end of the motor is fixedly connected with a guide supporting rod; support rods are fixedly connected to two sides of the guide support rods; the end part of the supporting rod is fixedly connected with a scraping plate, and the scraping plate is attached to the inner side wall of the mud outlet pipe.
Preferably, a water tank is arranged at the end part of the bricklaying device; a discharge pipe is arranged at the top of the mud outlet pipe; the bottom of the water tank is fixedly connected with a water pipe, and the other end of the water pipe is fixedly connected to the top of the discharge pipe; the end part of the discharge pipe is connected with a blocking plate in a sliding way; a top plate is fixedly connected to the side end of the blocking plate; the top plate is positioned at the side end of the fixed rod.
Preferably, the inner side wall of the top plate is fixedly connected with a reset spring; the other end of the return spring is fixedly connected to the side wall of the discharge pipe.
Preferably, the end part of the guide supporting rod is fixedly connected with a propeller; the screw is located the bottom of scraper blade, and the tip is the heliciform.
Preferably, a guide plate is fixedly connected with the side end of the bricklaying device; the side end of the guide plate is fixedly connected with a collecting box, and the collecting box is positioned at the bottom of the mud outlet pipe.
Preferably, the side end of the plugging plate is fixedly connected with a sealing limiting plate; the fixed rod and the fixed block are matched with each other; a plurality of water filtering holes are formed in the collecting box; the top plate and the fixed block are positioned on the same horizontal plane; the end part of the guided supporting rod is provided with a protection plate; the scraping plates are symmetrically arranged; the water tank is positioned at the top of the mud outlet pipe.
The utility model has the beneficial effects that:
the utility model provides a device for building aerated block bricks, which is characterized in that a motor is turned on to drive a guide supporting rod to rotate, so that the guide supporting rod drives the supporting rod to rotate, and when the supporting rod rotates, a scraper blade is driven to rotate on the inner side wall of a mud outlet pipe, so that the scraper blade scrapes accumulated cement in the mud outlet pipe, the effect of supporting and limiting can be achieved by inserting a screw into a fixed block, the distance between a protective cover plate and the end opening of the mud outlet pipe can be adjusted, the scraped cement in the mud outlet pipe flows to the outside through the end opening of the mud outlet pipe, the cleaning and the cleanliness of the inside of the mud outlet pipe are ensured, and the problem that the cement is solidified and blocked later is solved.
The utility model provides a device for building aerated block bricks, which is characterized in that when a fixed rod slides to a side end, a top plate is extruded, so that the top plate drives a blocking plate to slide to the side end, when the blocking plate slides from the inside of a discharge pipe, water in a water tank flows into the inside of the discharge pipe through a water pipe, then flows into the inside of a mud discharge pipe through the discharge pipe to be washed, and the inner side wall of the mud discharge pipe is further cleaned by being matched with scraping of a scraper blade.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:
FIG. 1 is a perspective view of the present utility model;
FIG. 2 is a cross-sectional view of the mud pipe of the present utility model;
FIG. 3 is a schematic view of the structure of the propeller of the present utility model;
FIG. 4 is a schematic view of the structure of the collecting tank in the present utility model;
FIG. 5 is an enlarged view at A in FIG. 2;
legend description:
1. a bricklaying device; 21. a mud outlet pipe; 22. a cover plate; 23. a motor; 24. a guide rod; 25. a propeller; 26. a support rod; 27. a scraper; 28. a fixed rod; 29. a fixed block; 31. a water tank; 32. a water pipe; 33. a discharge pipe; 34. a blocking plate; 35. a top plate; 36. sealing limiting plates; 4. a spring; 51. a guide plate; 52. a collection box; 6. a water filtering hole; 7. wear-resistant pad.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Specific examples are given below.
Referring to fig. 1-3, the utility model provides a device for laying aerated block bricks, which comprises a brick laying device 1; the end part of the bricklaying device 1 is provided with a mud outlet pipe 21; the outer wall of the mud outlet pipe 21 is fixedly connected with a fixed block 29 and is arranged in a circumferential array; a fixed rod 28 is connected inside the fixed block 29 in a sliding manner; the other end of the fixed rod 28 is fixedly connected with a protective cover plate 22; the end part of the protective cover plate 22 is fixedly connected with a motor 23; the output end of the motor 23 is fixedly connected with a guide supporting rod 24; support rods 26 are fixedly connected to two sides of the guide support rods 24; a scraping plate 27 is fixedly connected to the end part of the supporting rod 26, and the scraping plate 27 is attached to the inner side wall of the mud outlet pipe 21; during operation, when carrying out the processing of laying bricks through the arm-lock, can pile up a large amount of cement in the inside of going out mud pipe 21, when the machinery stops the wall building, the inside problem that solidifies can appear in the inside cement of going out mud pipe 21 of going out that piles up of pipe 21 can appear for a long time, and then block up in the inside of going out mud pipe 21, when restarting the machinery, because go out mud pipe 21 solidifies and blocks up, cause the problem that can't work, when the machinery of laying bricks, it carries out the processing of being stained with to go out the tip of mud pipe 21 to add the air brick through the arm-lock centre gripping, then will add the air brick through the arm-lock and carry out the wall processing, when the machinery of laying bricks stop the operation, through the port department of going out mud pipe 21 with the guard plate 22, through with fixed lever 28 alignment fixed block 29, then insert the inside of fixed lever 28 to fixed block 29, drive the inside that guard plate 22 is surperficial, drive the inside bracing piece 24 and bracing piece 26, after the inside of going out mud pipe 21 is inserted to the scraper blade 27, drive the inside of leading to the bracing piece 24 and rotate, make the bracing piece 24 drive the bracing piece 26 rotate when the operation, the bracing piece rotates, the tip is driven to rotate to the bracing piece 26, the tip of going out the inside cement 21 is carried out to the inside mud pipe 21, and the inside cement is blown out the inside 21 is guaranteed to the inside cement of leading out the inside mud pipe 21 through the inside cement pipe 21, the clearance is guaranteed to be reached through setting up to the inside cement pipe 21, the inside cement hole is adjusted to be reached through the inside guard plate 21, and the inside cement 21 is adjusted to be reached through the inside guard plate 21, and the inside cement hole is adjusted to be reached.
Further, as shown in fig. 1, 2, 3 and 5, the end of the bricklaying device 1 is provided with a water tank 31; a discharge pipe 33 is arranged at the top of the mud outlet pipe 21; the bottom of the water tank 31 is fixedly connected with a water pipe 32, and the other end of the water pipe 32 is fixedly connected with the top of a discharge pipe 33; a blocking plate 34 is slidably connected to the end of the discharge pipe 33; a top plate 35 is fixedly connected to the side end of the blocking plate 34; the top plate 35 is positioned at the side end of the fixed rod 28; when the fixing rod 28 slides to the side end, the top plate 35 is extruded, the top plate 35 drives the blocking plate 34 to slide to the side end, when the blocking plate 34 slides from the inside of the discharge pipe 33, water in the water tank 31 flows into the inside of the discharge pipe 33 through the water pipe 32, then flows into the inside of the mud outlet pipe 21 through the discharge pipe 33 to be washed, the cement is further cleaned by being matched with scraping of the scraping plate 27, and the cleaning effect of the inner side wall of the mud outlet pipe 21 is improved.
Further, as shown in fig. 5, a return spring 4 is fixedly connected to the inner side wall of the top plate 35; the other end of the return spring 4 is fixedly connected to the side wall of the discharge pipe 33; when the fixed rod 28 pushes the top plate 35, the top plate 35 slides towards the side end to stretch the reset spring 4 to generate elasticity, when the inside of the mud outlet pipe 21 is cleaned, the scraper 27 is taken out from the inside of the mud outlet pipe 21, the fixed rod 28 slides out of the fixed block 29, then the top plate 35 pulls the blocking plate 34 to reset through the elasticity generated by the reset spring 4, and the blocking plate is blocked in the discharge pipe 33, so that water in the water tank 31 cannot circulate, and the next use is facilitated.
Further, as shown in fig. 1-3, the end of the guiding support bar 24 is fixedly connected with a propeller 25; the screw propeller 25 is positioned at the bottom of the scraping plate 27, and the end part of the screw propeller is spiral; during operation, through installing screw 25 at the tip of direction bracing piece 24, drive screw 25 and rotate when direction bracing piece 24 rotates for screw 25 stirs out the silt of going out the inside accumulation of mud pipe 21, reduces the inside more problem of piling up cement of play mud pipe 21.
Further, as shown in fig. 1, 2 and 4, a guide plate 51 is fixedly connected to the side end of the bricklaying device 1; a collecting box 52 is fixedly connected to the side end of the guide plate 51, and the collecting box 52 is positioned at the bottom of the mud outlet pipe 21; during operation, through installing baffle 51 and collecting box 52 at the tip of brickwork device 1, when the cement of discharging is flowing out, collect through collecting box 52, come to recycle cement, reduce the problem that causes the waste.
Further, as shown in fig. 1-5, a sealing limiting plate 36 is fixedly connected to the side end of the blocking plate 34; the fixed rod 28 and the fixed block 29 are matched with each other; a plurality of water filtering holes 6 are formed in the collecting box 52; the top plate 35 and the fixed block 29 are positioned on the same horizontal plane; the end of the guided support bar 24 is provided with a protection plate; the scraping plates 27 are symmetrically arranged; the water tank 31 is positioned at the top of the mud outlet pipe 21; during operation, the sealing limiting plate 36 is arranged at the end part of the blocking plate 34, so that the sealing limiting plate 36 can have a limiting effect on the blocking plate 34, and the problem that the blocking plate 34 slips when sliding is solved; by providing the drainage holes 6 at the bottom of the collection box 52, the collection box 52 can filter out water contained in the collected cement.
Further, as shown in fig. 5, the inner side wall of the top plate 35 is fixedly connected with a wear pad 7; in operation, wear pad 7 is mounted on the inner side wall of top plate 35, so that abrasion of fixing rod 28 during long-time extrusion process is reduced.
Working principle: when the wall building machine is operated, the aerated block bricks are clamped by the mechanical clamping arms to move to the end parts of the mud discharging pipes 21 for mud dipping treatment, then the aerated block bricks are subjected to wall building treatment by the mechanical clamping arms, when the wall building machine stops operating, the protective cover plate 22 is moved to the end parts of the mud discharging pipes 21, the fixing rods 28 are aligned to the fixing blocks 29, and then the fixing rods 28 are inserted into the fixing blocks 29, the guide support rod 24, the support rod 26 and the scraping plate 27 on the surface of the protective cover plate 22 are driven to move towards the inside of the mud outlet pipe 21, after the guide support rod 24 is inserted, the motor 23 is turned on to drive the guide support rod 24 to rotate, so that the guide support rod 24 drives the support rod 26 to rotate, when the support rod 26 rotates, the scraping plate 27 is driven to rotate on the inner side wall of the mud outlet pipe 21, so that the scraping plate 27 scrapes the cement accumulated in the mud outlet pipe 21, the screw 25 is inserted into the fixing block 29, the supporting and limiting effects can be achieved, the distance between the protective cover plate 22 and the port of the mud outlet pipe 21 can be adjusted, the scraped cement in the mud outlet pipe 21 flows outwards through the port of the mud outlet pipe 21, the inside of the mud outlet pipe 21 is guaranteed to be clean and clean, and the problem that the cement is solidified and blocked later occurs is solved; when the fixed rod 28 slides to the side end, the top plate 35 is extruded, so that the top plate 35 drives the blocking plate 34 to slide to the side end, when the blocking plate 34 slides from the inside of the discharge pipe 33, water in the water tank 31 flows into the inside of the discharge pipe 33 through the water pipe 32, then flows into the inside of the mud outlet pipe 21 through the discharge pipe 33 to be washed, and the scraping of the scraping plate 27 is matched to further clean cement, so that the cleaning effect of the inner side wall of the mud outlet pipe 21 is improved; when the fixed rod 28 pushes the top plate 35, the top plate 35 slides to the side end to stretch the reset spring 4 to generate elasticity, when the inside of the mud discharging pipe 21 is cleaned, the scraper 27 is taken out from the inside of the mud discharging pipe 21, so that the fixed rod 28 slides out of the inside of the fixed block 29, then the top plate 35 pulls the blocking plate 34 to reset by the elasticity generated by the reset spring 4, and the blocking plate is blocked in the inside of the discharge pipe 33, so that water in the water tank 31 cannot circulate, and the next use is facilitated; the screw propeller 25 is arranged at the end part of the guide support rod 24, and the screw propeller 25 is driven to rotate when the guide support rod 24 rotates, so that the screw propeller 25 can stir and guide out the sludge accumulated in the sludge outlet pipe 21, and the problem that more cement is accumulated in the sludge outlet pipe 21 is solved; by installing the guide plate 51 and the collecting box 52 at the end part of the bricklaying device 1, when discharged cement flows out, the discharged cement is collected by the collecting box 52, so that the cement is recycled, and the problem of waste is reduced; the sealing limiting plate 36 is arranged at the end part of the blocking plate 34, so that the sealing limiting plate 36 can have a limiting effect on the blocking plate 34, and the problem that the blocking plate 34 slips when sliding is solved; by providing the drainage holes 6 at the bottom of the collection box 52, the collection box 52 can filter out water contained in the collected cement.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.
Claims (6)
1. An apparatus for laying aerated block bricks comprises a brick laying apparatus (1); the end part of the bricklaying device (1) is provided with a mud outlet pipe (21); the outer wall of the mud outlet pipe (21) is fixedly connected with a fixed block (29) and is arranged in a circumferential array; the method is characterized in that: a fixed rod (28) is connected inside the fixed block (29) in a sliding way; the other end of the fixed rod (28) is fixedly connected with a protective cover plate (22); the end part of the protective cover plate (22) is fixedly connected with a motor (23); the output end of the motor (23) is fixedly connected with a guide supporting rod (24); the two sides of the guide supporting rod (24) are fixedly connected with supporting rods (26); the end part of the supporting rod (26) is fixedly connected with a scraping plate (27), and the scraping plate (27) is attached to the inner side wall of the mud outlet pipe (21).
2. A device for laying aerated block as claimed in claim 1, wherein: the end part of the bricklaying device (1) is provided with a water tank (31); a discharge pipe (33) is arranged at the top of the mud outlet pipe (21); the bottom of the water tank (31) is fixedly connected with a water pipe (32), and the other end of the water pipe (32) is fixedly connected to the top of the discharge pipe (33); a blocking plate (34) is connected to the end of the discharge pipe (33) in a sliding manner; a top plate (35) is fixedly connected to the side end of the blocking plate (34); the top plate (35) is positioned at the side end of the fixed rod (28).
3. A device for laying aerated block as claimed in claim 2, wherein: the inner side wall of the top plate (35) is fixedly connected with a reset spring (4); the other end of the return spring (4) is fixedly connected to the side wall of the discharge pipe (33).
4. A device for laying aerated block according to claim 3, wherein: a propeller (25) is fixedly connected to the end part of the guide supporting rod (24); the screw propeller (25) is positioned at the bottom of the scraping plate (27), and the end part of the screw propeller is spiral.
5. A device for laying aerated block as claimed in claim 4, wherein: a guide plate (51) is fixedly connected to the side end of the bricklaying device (1); the side end of the guide plate (51) is fixedly connected with a collecting box (52), and the collecting box (52) is positioned at the bottom of the mud outlet pipe (21).
6. An apparatus for laying aerated block as claimed in claim 5, wherein: a sealing limiting plate (36) is fixedly connected to the side end of the blocking plate (34); the fixing rod (28) and the fixing block (29) are matched with each other; a plurality of water filtering holes (6) are formed in the collecting box (52); the top plate (35) and the fixed block (29) are positioned on the same horizontal plane; the end part of the guided supporting rod (24) is provided with a protection plate; the scraping plates (27) are symmetrically arranged; the water tank (31) is positioned at the top of the mud outlet pipe (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321590077.XU CN220117795U (en) | 2023-06-21 | 2023-06-21 | Device for building aerated block bricks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321590077.XU CN220117795U (en) | 2023-06-21 | 2023-06-21 | Device for building aerated block bricks |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220117795U true CN220117795U (en) | 2023-12-01 |
Family
ID=88888207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321590077.XU Active CN220117795U (en) | 2023-06-21 | 2023-06-21 | Device for building aerated block bricks |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220117795U (en) |
-
2023
- 2023-06-21 CN CN202321590077.XU patent/CN220117795U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113089816B (en) | Urban underground water pipe cleaning and dredging system | |
| CN211330623U (en) | Be applied to scrubbing device who washs pond | |
| CN210409828U (en) | Concrete laboratory equipment washs sewage and subsides device | |
| CN112588736B (en) | Surface treatment process for sewage pipeline | |
| CN108453071A (en) | A kind of automatic transport cleaning device of construction material | |
| CN211189223U (en) | Center transmission mud scraping device | |
| CN115814510A (en) | High-efficient towards sediment waste water filtration unit | |
| CN220117795U (en) | Device for building aerated block bricks | |
| WO2024061375A1 (en) | Pipe culvert blockage preventing apparatus for road engineering | |
| CN112238066A (en) | Sluice belt cleaning device for hydraulic engineering | |
| CN211097696U (en) | Slag scraping machine for sewage treatment | |
| CN116447428A (en) | Non-excavation repair process for underground pipe network | |
| CN216743423U (en) | Water conveying pipeline with built-in dredging structure for hydraulic engineering construction | |
| CN216379719U (en) | Water conservancy sediment removal device | |
| CN212662857U (en) | Dirt removing device for sewage treatment | |
| CN114775715A (en) | Ditch canal bottom desilting and cleaning device for hydraulic engineering development | |
| CN114472398A (en) | Water conservancy irrigation canals and ditches are with inside edulcoration equipment | |
| CN210097105U (en) | Efficient garbage cleaning grid machine | |
| CN210251366U (en) | Sewage sedimentation tank sludge cleaning device | |
| CN221236098U (en) | Hydraulic engineering dredging device | |
| CN219386621U (en) | A leave wall escape canal dredging device for track traffic station | |
| CN216725984U (en) | Slag-water separator for concrete wastewater treatment | |
| CN220877856U (en) | Sedimentation tank bottom silt cleaning device for sewage treatment | |
| CN217015439U (en) | Concrete effluent disposal system | |
| CN219848579U (en) | Fine grid surface cleaning device for sewage treatment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |