CN220704283U - Road construction equipment that flattens is repaired to road - Google Patents
Road construction equipment that flattens is repaired to road Download PDFInfo
- Publication number
- CN220704283U CN220704283U CN202322119430.2U CN202322119430U CN220704283U CN 220704283 U CN220704283 U CN 220704283U CN 202322119430 U CN202322119430 U CN 202322119430U CN 220704283 U CN220704283 U CN 220704283U
- Authority
- CN
- China
- Prior art keywords
- bottom plate
- road
- plate
- repair
- fixedly connected
- 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
- 238000010276 construction Methods 0.000 title claims abstract description 20
- 239000000463 material Substances 0.000 claims abstract description 41
- 230000008439 repair process Effects 0.000 claims abstract description 40
- 238000007790 scraping Methods 0.000 claims abstract description 32
- 239000000428 dust Substances 0.000 claims abstract description 12
- 238000007599 discharging Methods 0.000 claims abstract description 11
- 230000006835 compression Effects 0.000 claims abstract description 10
- 238000007906 compression Methods 0.000 claims abstract description 10
- 229910003460 diamond Inorganic materials 0.000 claims description 3
- 239000010432 diamond Substances 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 230000007423 decrease Effects 0.000 claims 1
- 239000002699 waste material Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 10
- 238000003825 pressing Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000007712 rapid solidification Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
Landscapes
- Road Repair (AREA)
Abstract
The utility model relates to the technical field of road construction, in particular to road construction equipment for repairing and flattening a road, which comprises a bottom plate, a dust collector, a storage barrel, a feed inlet and a pushing frame, wherein a motor box is arranged at the outer top of the storage barrel, a first servo motor is arranged in the motor box, the lower end of the first servo motor is connected with a rotating shaft, a screw blade is arranged on the rotating shaft, through holes are formed in the screw blade at equal intervals, the bottom of the storage barrel is communicated with a discharge hole, the discharge hole penetrates through the bottom plate, a discharge assembly for discharging materials is arranged between the discharge hole and the rotating shaft, and a compression roller is rotationally connected to the right side of the bottom plate. The position to be repaired is cleaned by the dust collector, so that good adhesion between the repair material and the road surface is ensured, the repair quality is quickly cured and improved, the first scraping plate and the gathering plate are utilized to scrape and gather the superfluous repair material on the ground, the repair quality is improved, and meanwhile, the waste of the repair material is avoided.
Description
Technical Field
The utility model relates to the technical field of road construction, in particular to road construction equipment for repairing and flattening a road.
Background
Road construction refers to the process of constructing, maintaining or reconstructing a road in a city or a rural area, and is a complex and detailed project, suitable planning, design and construction technology are needed to ensure that a safe and high-quality road network is constructed, and the technical fields are mutually interwoven, so that the progress of road construction is jointly advanced, and the requirements of modern society on the high-quality, high-efficiency and sustainable road network are met.
The road construction equipment that current road repair was flattened can't collect the unnecessary repair material when repairing the road, makes the place of repairing and road surface height inequality, when the compression roller flattened the road surface, had repair material attached to the compression roller surface, when carrying out the next compression roller, the surface of compression roller was not smooth enough, reduced the roughness of repairing the position.
Disclosure of Invention
In order to overcome the disadvantages proposed in the background art, the technical problems to be solved are: a road construction apparatus for repairing and flattening a road is provided.
The technical scheme of the utility model is as follows: the utility model provides a road construction equipment that road repair was flattened, comprising a base plate, the bottom plate left side is equipped with the dust catcher that is used for debris clearance, the bottom plate right side is equipped with the storage vat, the left side intercommunication of storage vat has the feed inlet, the right side of storage vat is equipped with promotes the frame, the outer top of storage vat is equipped with the motor case, the motor incasement is equipped with first servo motor, the lower extreme of first servo motor is connected with the pivot, be equipped with screw blade in the pivot, the through-hole has been seted up to screw blade equidistance, the bottom intercommunication of storage vat has the discharge gate, and the discharge gate passes the bottom plate, be equipped with the discharging component that is used for material exhaust between discharge gate and the pivot, the bottom plate right side rotates and is connected with the compression roller.
In a preferred embodiment of the utility model, the diameter of the propeller blade is gradually reduced from bottom to top for stirring the repair material.
In a preferred embodiment of the utility model, the discharging assembly comprises a baffle plate, the baffle plate is connected in the discharging hole in a sliding way, a thread bush is arranged at the center position of the baffle plate, a one-way bearing is embedded at the end face of the rotating shaft, a reciprocating screw rod is fixedly connected to the inner ring of the one-way bearing, the bottommost end of the reciprocating screw rod is positioned in the discharging hole, the thread bush is in threaded fit with the reciprocating screw rod, a gear lack is rotationally connected to the discharging hole, the rotating shaft is connected with the gear lack through a connecting rod, symmetrically distributed guide rods are arranged at the upper end of the connecting rod, and the guide rods penetrate through the baffle plate.
In a preferred embodiment of the present utility model, the connecting rod has a diamond structure, which is easy to repair the material flowing down.
In a preferred embodiment of the utility model, a cavity is formed in the bottom plate, the gear lack is positioned in the cavity, a moving plate is connected in a sliding way in the cavity, a rack meshed with the gear lack is fixedly connected to one side surface of the moving plate through a connecting rod, a chute is formed in the moving plate, a sliding rod is arranged in the chute, a first scraping plate vertically connected in a sliding way is fixedly connected to the sliding rod, fixing rods are symmetrically distributed in a sliding way on the upper side of the first scraping plate, and the fixing rods are fixedly connected with the bottom plate.
In a preferred embodiment of the utility model, the scraper blade assembly further comprises symmetrically-distributed connecting frames, the symmetrically-distributed connecting frames are fixedly connected with the first scraper blade, threaded guide rods are arranged between the symmetrically-distributed connecting frames, a second servo motor which is arranged on one end of each threaded guide rod and connected with the connecting frame is arranged on each threaded guide rod, gathering plates are symmetrically arranged on the threaded guide rods and move in a matched mode through threaded shaft sleeves, and the gathering plates are attached to the first scraper blade.
In a preferred embodiment of the utility model, the device further comprises a collecting frame, wherein the collecting frame is placed on the right side of the bottom plate, a second scraping plate is rotatably connected to the collecting frame, springs which are distributed at equal intervals are fixedly connected between the collecting frame and the second scraping plate, and the second scraping plate is attached to the compression roller.
Compared with the prior art, the utility model has the following advantages:
1. the utility model cleans the position to be repaired by the dust collector to ensure good adhesion between the repair material and the road surface, fast solidification and improve repair quality, thereby realizing the durability of repair work and the safety of the road.
2. According to the utility model, the first scraping plate and the gathering plate are used for scraping and gathering the superfluous repairing material on the ground, so that the repairing quality is improved.
3. According to the utility model, the repairing material attached to the press roller is scraped off by the second scraping plate, so that the flatness of the surface of the press roller is maintained, and the repairing quality and the durability of repairing work are improved.
Drawings
Fig. 1 is a schematic perspective view of the present utility model.
Fig. 2 is a schematic cross-sectional perspective view of a storage bucket according to the present utility model.
Fig. 3 is a schematic perspective view of a discharging assembly according to the present utility model.
Fig. 4 is a schematic perspective view of a scraping assembly according to the present utility model.
Fig. 5 is a schematic perspective view of a second scraper according to the present utility model.
Wherein the above figures include the following reference numerals: 1. the vacuum cleaner comprises a bottom plate, 2, a dust collector, 3, a storage bucket, 4, a feed inlet, 5, a pushing frame, 6, a discharge outlet, 7, a motor box, 8, a first servo motor, 9, a rotating shaft, 10, a propeller blade, 11, a compression roller, 12, a baffle, 13, a threaded sleeve, 14, a gear lack, 15, a connecting rod, 16, a guide rod, 17, a cavity, 18, a moving plate, 19, a rack, 20, a slide bar, 21, a first scraping plate, 22, a fixed rod, 23, a connecting frame, 24, a threaded guide rod, 25, a second servo motor, 26, a gathering plate, 27, a collecting frame, 28, a second scraping plate, 29 and a spring.
Detailed Description
It should be noted that in the various embodiments described, identical components are provided with identical reference numerals or identical component names, wherein the disclosure contained throughout the description can be transferred in a meaning to identical components having identical reference numerals or identical component names. The position specification, the upper, lower, lateral, etc. selected in the description are also referred to directly in the description and the figures shown and are transferred in the sense of a new position when the position is changed.
Example 1
1-5, road construction equipment that flattens is repaired to road, as shown in fig. 1-5, including bottom plate 1, the left side of bottom plate 1 inlays the dust catcher 2 that is used for debris clearance, install storage vat 3 on bottom plate 1 on the right side of dust catcher 2, the upside intercommunication of the left surface of storage vat 3 has feed inlet 4, the right side of storage vat 3 is equipped with pushing frame 5, the outer top of storage vat 3 is equipped with motor case 7, be equipped with first servo motor 8 in the motor case 7, the lower extreme of first servo motor 8 passes the up end of storage vat 3 and is connected with pivot 9 through the shaft coupling, be equipped with screw blade 10 on the pivot 9, screw blade 10 equidistantly has seted up the through-hole, screw blade 10's diameter from down upwards reduces gradually, be used for stirring the repair material, screw blade 10 clockwise rotation can realize upwards holding the repair material of downside, the through-hole on screw blade 10 can make the repair material of upside flow into the downside simultaneously, the repairing materials in the storage vat 3 are mixed, the phenomenon of solid-liquid layering of the repairing materials in the storage vat 3 is avoided, the bottom of the storage vat 3 is communicated with a discharge hole 6, the lower end of the discharge hole 6 passes through a bottom plate 1, a baffle 12 is connected in a sliding manner in the discharge hole 6, a threaded sleeve 13 is embedded in the center position of the baffle 12, a one-way bearing is embedded in the lower end face of a rotating shaft 9, a reciprocating screw is fixedly connected with the inner ring of the one-way bearing, the bottommost end of the reciprocating screw is positioned in the discharge hole 6, the threaded sleeve 13 is in threaded fit with the reciprocating screw, a gear lack 14 is connected to the discharge hole 6 in a rotating manner, the rotating shaft 9 is connected with the gear lack 14 through a connecting rod 15, the connecting rod 15 is of a diamond structure, the repairing materials are easy to flow down, symmetrically distributed guide rods 16 are arranged at the upper ends of the connecting rod 15, the guide rods 16 are of a non-circular structure, the guide rods 16 pass through the baffle 12, the right side of the bottom plate 1 is rotationally connected with a compression roller 11, the bottom plate 1 is provided with a cavity 17, a gear lack 14 is positioned in the cavity 17, a moving plate 18 is slidably connected in the cavity 17, a rack 19 meshed with the gear lack 14 is fixedly connected to the left side surface of the moving plate 18 through a connecting rod, a spring is fixedly connected between the rack 19 and the cavity 17, a chute is arranged on the moving plate 18, a slide bar 20 is arranged in the chute, the slide bar 20 is fixedly connected with a first scraping plate 21 which is vertically and slidably connected with the bottom plate 1, a fixing rod 22 which is symmetrically distributed is slidingly connected to the upper side of the first scraping plate 21, and the fixing rod 22 is fixedly connected with the bottom plate 1.
When the device is used, firstly, the device is externally connected with a power supply, so that electric power support is provided for the device, a repair material is put into the storage vat 3 through the feed inlet 4, the first servo motor 8 is turned on to enable the rotary shaft 9 to rotate clockwise, the rotary shaft 9 rotates clockwise and cannot enable the reciprocating screw rod to rotate through the one-way bearing, the rotary shaft 9 rotates to drive the propeller blade 10 to rotate, the repair material is stirred, in the process, the propeller blade 10 rotates clockwise to enable the repair material at the lower side of the storage vat 3 to be lifted upwards, the repair material at the lower side is enabled to move upwards and be mixed with the repair material at the upper side, the phenomenon that solid-liquid layering of the repair material in the storage vat 3 is avoided, the baffle 12 cannot move the discharge hole 6 to be in a closed state, the repair material cannot flow out, the device is moved to a position where a road needs to be repaired and flattened through the pushing frame 5, when the dust collector 2 is positioned at the position where the repair is needed, the dust collector 2 is opened to clean the position to be repaired so as to ensure good adhesion and rapid solidification of the repair material and the road surface and improve the repair quality, the durability of repair work and the safety of the road are realized, after the dust collection is finished, the dust collector 2 is closed, the discharge port 6 is moved to the position to be repaired, at the moment, the first servo motor 8 drives the rotating shaft 9 to rotate anticlockwise, the rotating shaft 9 rotates anticlockwise and drives the reciprocating screw to rotate through the one-way bearing, the reciprocating screw rotates and cooperates with the thread sleeve 13 to enable the baffle 12 to move upwards under the limiting action of the guide rod 16, the baffle 12 moves upwards to open the discharge port 6, the repair material in the storage barrel 3 flows out through the discharge port 6, in the process, the rotating shaft 9 rotates anticlockwise to drive the screw blade 10 to press the repair material in the storage barrel 3 downwards, the repair material in the storage barrel 3 flows out rapidly, when the thread bush 13 moves to the uppermost side of the reciprocating screw rod, the first servo motor 8 is turned off at the moment, and when the repair material is required to stop flowing out, the first servo motor 8 is started to drive the rotating shaft 9 to continuously rotate anticlockwise, so that the thread bush 13 moves downwards along the reciprocating screw rod to reset, and then the first servo motor 8 is turned off.
In the above process, the rotating shaft 9 drives the connecting rod 15 to rotate anticlockwise, the gear lack 14 rotates along with the rotation, the rack 19 moves rightwards, the spring between the rack 19 and the cavity stretches along with the rotation, the moving plate 18 moves rightwards along with the rotation through the connecting rod 15, the moving plate 18 is provided with a chute, the sliding rod 20 moves downwards to drive the first scraping plate 21 to move downwards to contact with the ground, the first scraping plate 21 is guided to move through the fixing rod 22, and in the process of pushing the equipment to move, the repairing material overflowing to repair the pits can be scraped through the first scraping plate 21.
In the above process, when the baffle 12 moves upwards and is positioned at the upper end of the screw, the rack 19 and the gear lack 14 are still in an engaged state, when the rotating shaft 9 continues to rotate anticlockwise, the baffle 12 moves downwards in cooperation with the reciprocating screw, meanwhile, the gear lack 14 does not engage with the rack 19 when rotating, the rack 19 moves leftwards under the action of a spring to reset, and the first scraping plate 21 moves upwards to reset.
Example 2
On the basis of embodiment 1, as shown in fig. 4, the device further comprises symmetrically distributed connecting frames 23, the symmetrically distributed connecting frames 23 are fixedly connected with the first scraping plate 21, a threaded guide rod 24 is arranged between the symmetrically distributed connecting frames 23, one end of the threaded guide rod 24 is provided with a second servo motor 25 which is installed on the connecting frames 23, the threaded guide rod 24 is symmetrically provided with a gathering plate 26, the gathering plate 26 moves in a matched mode with the threaded guide rod 24 through a threaded shaft sleeve, and the gathering plate 26 is attached to the first scraping plate 21.
In the above process, after the first scraping plate 21 moves downwards to contact with the ground, the second servo motor 25 is started at this time to enable the two gathering plates 26 to be close to or far away from each other, the distance between the two gathering plates 26 is adjusted, the distance between the nearest two gathering plates 26 is slightly larger than the size of a hole, in the process of moving and filling the repairing material by the device, overflowed repairing material can be gathered between the two gathering plates 26, and filled in the hole to be repaired, the first scraping plate 21 and the gathering plates 26 are used for scraping and gathering the superfluous repairing material on the ground, and the overflow part of the repairing material is prevented from flowing around, so that the repairing material is wasted.
In the above process, the upward movement of the first scraper 21 drives the gathering plate 26 to also move upward, the second servo motor 25 is turned on to restore the gathering plate 26 to the original position, and the second servo motor 25 is turned off after the gathering plate 26 is restored to the original position.
Example 3
On the basis of embodiment 2, as shown in fig. 5, the device further comprises a collecting frame 27, wherein the collecting frame 27 is placed on the right side of the bottom plate 1, a second scraping plate 28 is rotationally connected to the collecting frame 27, a spring 29 which is distributed at equal intervals is fixedly connected between the collecting frame 27 and the second scraping plate 28, and the second scraping plate 28 is attached to the press roller 11.
In the above process, the second scraping plate 28 is attached to the pressing roller 11 through the spring 29, so as to scrape off the repairing material attached to the pressing roller 11, and the scraped repairing material falls into the collecting frame 27, so that the flatness of the surface of the pressing roller 11 is maintained, and the repairing quality and the durability of the repairing work are improved.
It will be appreciated by persons skilled in the art that the above embodiments are not intended to limit the utility model in any way, and that all technical solutions obtained by means of equivalent substitutions or equivalent transformations fall within the scope of the utility model.
Claims (7)
1. The utility model provides a road construction equipment that flattens is repaired to road which characterized in that: including bottom plate (1), bottom plate (1) left side is equipped with dust catcher (2) that are used for debris clearance, bottom plate (1) right side is equipped with storage vat (3), the left side intercommunication of storage vat (3) has feed inlet (4), the right side of storage vat (3) is equipped with promotes frame (5), the outer top of storage vat (3) is equipped with motor case (7), be equipped with first servo motor (8) in motor case (7), the lower extreme of first servo motor (8) is connected with pivot (9), be equipped with screw blade (10) on pivot (9), the through-hole has been seted up to screw blade (10) equidistance, the bottom intercommunication of storage vat (3) has discharge gate (6), and discharge gate (6) pass bottom plate (1), be equipped with the discharge subassembly that is used for the material to discharge between discharge gate (6) and pivot (9), bottom plate (1) right side rotation is connected with compression roller (11).
2. A road repair flattened roadway construction apparatus in accordance with claim 1 wherein: the diameter of the propeller blade (10) gradually decreases from bottom to top for stirring the repair material.
3. A road repair flattened roadway construction apparatus in accordance with claim 1 wherein: the discharging component comprises a baffle (12), the baffle (12) is slidably connected in a discharging hole (6), a thread bush (13) is arranged at the central position of the baffle (12), a one-way bearing is embedded in the end face of a rotating shaft (9), a reciprocating screw is fixedly connected to the inner ring of the one-way bearing, the bottommost end of the reciprocating screw is located in the discharging hole (6), the thread bush (13) is in threaded fit with the reciprocating screw, a gear missing (14) is rotationally connected to the discharging hole (6), the rotating shaft (9) is connected with the gear missing (14) through a connecting rod (15), symmetrically distributed guide rods (16) are arranged at the upper end of the connecting rod (15), and the guide rods (16) penetrate through the baffle (12).
4. A road repair flattened roadway construction apparatus in accordance with claim 3 wherein: the connecting rod (15) is of a diamond structure, so that the repairing material is easy to flow down.
5. A road repair flattened roadway construction apparatus in accordance with claim 3 wherein: the bottom plate (1) is provided with a cavity (17), the gear-lack wheel (14) is located in the cavity (17), a moving plate (18) is connected in a sliding mode in the cavity (17), a side face of the moving plate (18) is fixedly connected with a rack (19) meshed with the gear-lack wheel (14) through a connecting rod, a chute is formed in the moving plate (18), a sliding rod (20) is arranged in the chute, the sliding rod (20) is fixedly connected with a first scraping plate (21) which is vertically and slidingly connected with the bottom plate (1), the upper side of the first scraping plate (21) is slidingly connected with a symmetrically distributed fixing rod (22), and the fixing rod (22) is fixedly connected with the bottom plate (1).
6. A road repair flattened roadway construction apparatus in accordance with claim 5 wherein: the scraper blade is characterized by further comprising symmetrically distributed connecting frames (23), wherein the symmetrically distributed connecting frames (23) are fixedly connected to the first scraper blade (21), threaded guide rods (24) are arranged between the symmetrically distributed connecting frames (23), one ends of the threaded guide rods (24) are provided with second servo motors (25) which are installed on the connecting frames (23), gathering plates (26) are symmetrically arranged on the threaded guide rods (24), the gathering plates (26) move in a matched mode through threaded shaft sleeves and the threaded guide rods (24), and the gathering plates (26) are attached to the first scraper blade (21).
7. A road repair flattened roadway construction apparatus in accordance with claim 6 wherein: the device further comprises a collecting frame (27), the collecting frame (27) is placed on the right side of the bottom plate (1), the collecting frame (27) is rotationally connected with a second scraping plate (28), springs (29) which are distributed at equal intervals are fixedly connected between the collecting frame (27) and the second scraping plate (28), and the second scraping plate (28) is attached to the press roller (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322119430.2U CN220704283U (en) | 2023-08-08 | 2023-08-08 | Road construction equipment that flattens is repaired to road |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322119430.2U CN220704283U (en) | 2023-08-08 | 2023-08-08 | Road construction equipment that flattens is repaired to road |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220704283U true CN220704283U (en) | 2024-04-02 |
Family
ID=90452623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322119430.2U Active CN220704283U (en) | 2023-08-08 | 2023-08-08 | Road construction equipment that flattens is repaired to road |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220704283U (en) |
-
2023
- 2023-08-08 CN CN202322119430.2U patent/CN220704283U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112391922A (en) | Asphalt pavement repairing device and asphalt pavement repairing process | |
| CN108068331A (en) | A kind of 3D printer platform and its cleaning plant | |
| CN111974983A (en) | Pressure-resistant submersible pump and preparation method thereof | |
| CN220704283U (en) | Road construction equipment that flattens is repaired to road | |
| CN111231061B (en) | Automatic floating device of unloading of cement well lid production | |
| CN113006022A (en) | Energy-concerving and environment-protective river rubbish recovery processing equipment | |
| CN115055708B (en) | Discharging device of numerical control lathe and control method thereof | |
| CN114986907B (en) | Discharging device of SLA light curing 3D printing equipment | |
| CN218077811U (en) | Packed tower sieve plate cleaning device | |
| CN206676711U (en) | One kind building sand screening plant | |
| CN115284094A (en) | Cement wall surface flattening device | |
| CN210786345U (en) | Sedimentation tank cleaning device for sewage treatment | |
| CN113498845A (en) | Machine for making bean cake | |
| CN112176842B (en) | Construction device and construction method for municipal engineering maintenance | |
| CN213978518U (en) | Highway is road surface crack pouring device for maintenance | |
| CN117900726B (en) | Intelligent workbench for machine manufacturing | |
| CN212441969U (en) | Screening sand device for construction engineering | |
| CN211253119U (en) | Multi-station automatic facial mask filling machine | |
| CN214419616U (en) | Shower nozzle clearance mechanism | |
| CN214883988U (en) | Construction equipment of filling out soil | |
| CN219427171U (en) | Raw material stirring device for manufacturing rearview mirror heating plate | |
| CN219586534U (en) | Device is filled up in repairing of hole highway section | |
| CN216259271U (en) | Sedimentation tank of automatic clearance is used in road bridge construction | |
| CN216304596U (en) | Water diversion structure for water conservancy and hydropower engineering | |
| CN212596984U (en) | A tealeaves sieving mechanism for tealeaves is planted |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |