CN220758495U - Dust suppression spraying device for construction site - Google Patents
Dust suppression spraying device for construction site Download PDFInfo
- Publication number
- CN220758495U CN220758495U CN202322001359.8U CN202322001359U CN220758495U CN 220758495 U CN220758495 U CN 220758495U CN 202322001359 U CN202322001359 U CN 202322001359U CN 220758495 U CN220758495 U CN 220758495U
- Authority
- CN
- China
- Prior art keywords
- water
- water tank
- pipe
- base
- spraying
- 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
- 238000005507 spraying Methods 0.000 title claims abstract description 37
- 239000000428 dust Substances 0.000 title claims abstract description 22
- 230000001629 suppression Effects 0.000 title claims abstract description 21
- 238000010276 construction Methods 0.000 title claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 157
- 239000007921 spray Substances 0.000 claims abstract description 49
- 230000007246 mechanism Effects 0.000 claims abstract description 46
- 238000013016 damping Methods 0.000 claims description 18
- 238000007789 sealing Methods 0.000 claims description 7
- 239000005341 toughened glass Substances 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims 1
- 230000008878 coupling Effects 0.000 abstract description 3
- 238000010168 coupling process Methods 0.000 abstract description 3
- 238000005859 coupling reaction Methods 0.000 abstract description 3
- 238000009435 building construction Methods 0.000 abstract description 2
- 239000003651 drinking water Substances 0.000 abstract description 2
- 235000020188 drinking water Nutrition 0.000 abstract description 2
- 239000012535 impurity Substances 0.000 description 5
- 239000008187 granular material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000005086 pumping Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Landscapes
- Special Spraying Apparatus (AREA)
Abstract
The utility model relates to the technical field of building construction, in particular to a dust suppression spraying device for a construction site, which is convenient to adjust the spraying direction, convenient to operate, capable of reducing physical consumption and improving working efficiency; the device comprises a base and a water tank, wherein the water tank is fixedly connected to the top end of the base; still include mechanism, adjustment mechanism, spraying mechanism and mobile mechanism add, adjustment mechanism includes two electric telescopic links, two fixing bases, first spray tube and positive and negative rotation motor, spraying mechanism includes suction pump, drinking-water pipe, filter screen, coupling hose, two extension pipes, second spray tube and a plurality of atomizer, and the water filling mouth has been seted up on the top left part of water tank, and mechanism installs in water filling mouth department, and adjustment mechanism installs on the top of water tank, and spraying mechanism installs on the top of base, and spraying mechanism's output is located adjustment mechanism, and mobile mechanism installs in the bottom of base, drives equipment and removes.
Description
Technical Field
The utility model relates to the technical field of building construction, in particular to a dust suppression spraying device for a construction site.
Background
A large amount of dust is diffused in many building sites and quarries, and extremely large damage is caused to workers and even surrounding environments, so that the dust suppression device is indispensable, through searching, the dustproof spraying device for the building engineering, which is proposed by the prior art publication No. CN212188325U, comprises a bottom plate, the rear end of the top end face of the bottom plate is provided with a water tank, the bottom of the front side wall of the water tank is provided with a water pump communicated with an inner cavity of the water tank, the outlet end of the water pump is communicated with a water outlet pipe, the left and right corners of the front end of the top end of the bottom plate are respectively provided with a supporting rod, the rear side wall of the supporting rods is respectively provided with a fixing screw hole, the rear side wall of the supporting rods is provided with a mounting block, the upper end face and the lower end face of each mounting block are respectively fixedly provided with an auxiliary block which abuts against the rear side wall of the supporting rods, the left side wall of each auxiliary block is respectively inserted with a fixing bolt, a plum blossom extending to the right side wall of each mounting block is provided with a transition pipe, and the left and right ends of each transition pipe are respectively fixedly connected with a connecting block. But in the use, because construction site and scope are different, need spray the pollution source direction, but most dustproof sprinkler is in the regulation direction in-process, need the manual work to carry, consume great physical power, influence spraying efficiency.
Disclosure of Invention
In order to solve the technical problems, the utility model provides the dust suppression spraying device for the construction site, which is convenient to adjust the spraying direction, convenient to operate, reduces the physical consumption and improves the working efficiency.
The utility model relates to a dust suppression spraying device for a construction site, which comprises a base and a water tank, wherein the water tank is fixedly connected to the top end of the base; the water tank is characterized by further comprising a water adding mechanism, an adjusting mechanism, a spraying mechanism and a moving mechanism, wherein the water adding port is formed in the left part of the top end of the water tank, the water adding mechanism is arranged at the water adding port, the adjusting mechanism is arranged at the top end of the water tank, the spraying mechanism is arranged at the top end of the base, the output end of the spraying mechanism is positioned on the adjusting mechanism, and the moving mechanism is arranged at the bottom end of the base and drives equipment to move; can filter when adding water to the water tank through adding water mechanism, remove the granule impurity in the water, avoid blockking up the pipeline, influence the dust suppression effect, drive equipment through moving mechanism and remove, the equipment of being convenient for uses in different construction sites, improve equipment's flexibility, can adjust spraying direction through adjustment mechanism, the simple operation reduces physical demands, improves work efficiency.
Preferably, the water adding mechanism comprises a water adding pipe, a baffle ring, a filter cylinder, a handle and a sealing cover, wherein the water adding pipe is fixedly arranged at a water adding port of the water tank, the baffle ring is fixedly arranged on the inner wall of the water adding pipe, the upper part of the filter cylinder is arranged at the top end of the baffle ring, a plurality of filter holes are uniformly formed in the bottom end of the filter cylinder, the handle is movably arranged at the top of the filter cylinder, and the sealing cover is arranged at the top input end of the water adding pipe; when adding water, open sealed lid, through adding the water pipe and to the inside water that adds of water tank, can filter water through the cartridge filter, avoid large granule impurity etc. in the water to get into the water tank, cause the jam of pipeline, influence the dust suppression effect, can take out the cartridge filter through the handle on the top of baffle ring and clear up it, guarantee filter effect.
Preferably, the adjusting mechanism comprises two electric telescopic rods, two fixing seats, a first spray pipe and a forward and backward rotating motor, wherein the two electric telescopic rods are symmetrically arranged at the left end and the right end of the top of the water tank, the fixing seats are arranged at the top ends of the electric telescopic rods, the first spray pipe is movably arranged between the two fixing seats, the right end of the first spray pipe penetrates through the fixing seats to be connected with the output end of the forward and backward rotating motor, and the forward and backward rotating motor is fixedly arranged on the right side wall of the fixing seat; can adjust through electric telescopic handle and spray the height, start positive and negative rotation motor can drive first spray tube and rotate on the fixing base to adjust the direction of spraying, easy operation avoids artifical transport, causes physical demands, improves work efficiency.
Preferably, the spraying mechanism comprises a water suction pump, a water suction pipe, a filter screen, a connecting hose, two extension pipes, a second spray pipe and a plurality of atomizing spray heads, wherein the water suction pump is fixedly arranged at the top end of a water tank between two electric telescopic rods, the input end of the water suction pump is connected with the water suction pipe, the input end of the water suction pipe stretches into the right side of the bottom end in the water tank and is fixedly connected with the filter screen, the output end of the water suction pump is connected with the input end of the first spray pipe through the connecting hose, the two extension pipes are respectively communicated with the left end and the right end of the top of the first spray pipe, the top end of the extension pipe is connected with the second spray pipe, the atomizing spray heads are obliquely arranged on the side walls of the front end and the rear end of the first spray pipe, and the atomizing spray heads are uniformly arranged at the top end of the second spray pipe; starting the suction pump, extracting the inside water of water tank through the suction pipe, carrying out secondary filtering to water through the filter screen, then in inputting first spray tube through coupling hose, in inputting the second spray tube through the extension pipe, outwards spout through atomizer, increase spraying area through extension pipe and second spray tube, further improve the dust suppression effect, improve the practicality.
Preferably, the moving mechanism comprises four damping rods, four mounting plates, four springs, four moving wheels, two pushing frames and a push rod, wherein the four damping rods are respectively and fixedly arranged at four corners of the bottom end of the base, the bottom ends of the damping rods are connected with the mounting plates, the springs are sleeved on the outer walls of the damping rods, the top ends of the springs are connected with the bottom ends of the base, the bottom ends of the springs are connected with the top ends of the mounting plates, the moving wheels are arranged at the bottom ends of the mounting plates, the two pushing frames are symmetrically arranged on the left side wall of the base, and the top ends of the two pushing frames are connected with the push rod; the base is pushed by the push rod and the pushing frame, so that the base moves through the moving wheels, equipment is convenient to use in different construction sites, flexibility of the equipment is improved, damping transmission can be carried out in the moving process through the damping rod and the mounting plate, shaking of water in the water tank is reduced, and stability is improved.
Preferably, the water tank also comprises a water guide block and an observation window, wherein the water guide block is arranged at the bottom end of the inside of the water tank, the top end of the water guide block is inclined to the right side, the observation window is fixedly arranged at the right part of the front end of the water tank, and transparent toughened glass is arranged on the observation window; can flow to the right side through the water guide block when ground is not level, guarantee the extraction of drinking-water pipe to water, can be convenient for observe the surplus quantity of water in the water tank through the observation window, be convenient for in time supply, convenience when improving the use.
Compared with the prior art, the utility model has the beneficial effects that: can filter when adding water to the water tank through adding water mechanism, remove the granule impurity in the water, avoid blockking up the pipeline, influence the dust suppression effect, drive equipment through moving mechanism and remove, the equipment of being convenient for uses in different construction sites, improve equipment's flexibility, can adjust spraying direction through adjustment mechanism, the simple operation reduces physical demands, improves work efficiency.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic diagram of the front view of the present utility model;
FIG. 3 is a schematic left-hand view of the present utility model;
FIG. 4 is a schematic view of a front cross-sectional structure of the present utility model;
FIG. 5 is an enlarged schematic view of the portion A of FIG. 2 according to the present utility model;
the reference numerals in the drawings: 1. a base; 2. a water tank; 3. a water supply pipe; 4. a baffle ring; 5. a filter cartridge; 6. a handle; 7. sealing cover; 8. an electric telescopic rod; 9. a fixing seat; 10. a first nozzle; 11. a forward and reverse rotation motor; 12. a water pump; 13. a water pumping pipe; 14. a filter screen; 15. a connecting hose; 16. an extension tube; 17. a second nozzle; 18. an atomizing nozzle; 19. a damping rod; 20. a mounting plate; 21. a spring; 22. a moving wheel; 23. a pushing frame; 24. a push rod; 25. a water guide block; 26. and an observation window.
Description of the embodiments
In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. This utility model may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
As shown in fig. 1, 3 and 4, a water tank 2 is fixedly connected to the top end of a base 1, a water filling port is formed in the left part of the top end of the water tank 2, a water filling pipe 3 is fixedly installed at the water filling port of the water tank 2, a baffle ring 4 is fixedly installed on the inner wall of the water filling pipe 3, the upper part of a filter cartridge 5 is placed at the top end of the baffle ring 4, a plurality of filter holes are uniformly formed in the bottom end of the filter cartridge 5, a handle 6 is movably installed at the top of the filter cartridge 5, a sealing cover 7 covers the top input end of the water filling pipe 3, two electric telescopic rods 8 are symmetrically installed at the left and right ends of the top of the water tank 2, fixing seats 9 are installed at the top ends of the electric telescopic rods 8, a first spray pipe 10 is movably installed between the two fixing seats 9, the right end of the first spray pipe 10 penetrates through the fixing seats 9 and is connected with the output end of a forward and backward rotation motor 11, the positive and negative rotation motor 11 is fixedly arranged on the right side wall of the fixed seat 9, the water suction pump 12 is fixedly arranged at the top end of the water tank 2 between the two electric telescopic rods 8, the input end of the water suction pump 12 is connected with the water suction pipe 13, the input end of the water suction pipe 13 stretches into the right side of the inner bottom end of the water tank 2 and is fixedly connected with the filter screen 14, the output end of the water suction pump 12 is connected with the input end of the first spray pipe 10 through the connecting hose 15, the two extension pipes 16 are respectively communicated with the left and right ends of the top of the first spray pipe 10, the top end of the extension pipe 16 is connected with the second spray pipe 17, a plurality of atomizing spray heads 18 are obliquely arranged on the side walls of the front end and the rear end of the first spray pipe 10, and a plurality of atomizing spray heads 18 are uniformly arranged at the top end of the second spray pipe 17;
when adding water, open sealed lid 7, can filter water to the inside water tank 2 through water pipe 3, can filter water through cartridge filter 5, avoid entering water tank 2 such as big granule impurity in the aquatic, cause the jam of pipeline, influence dust suppression effect, can take out cartridge filter 5 and clear up it on the top of baffle ring 4 through handle 6, guarantee the filter effect, can adjust through electric telescopic handle 8 and spray the height, start positive and negative rotating machine 11 and can drive first spray tube 10 and rotate on fixing base 9, thereby adjust the direction of spraying, easy operation, avoid artifical transport, cause physical effort, improve work efficiency, start suction pump 12, extract water inside water tank 2 through suction pipe 13, carry out secondary filtration through filter screen 14, then input first spray tube 10 through coupling hose 15, input second spray tube 17 through extension pipe 16, spray the area is outwards spouted through atomizer 18, increase through extension pipe 16 and second spray tube 17 and spray the dust suppression effect, improve the practicality further.
As shown in fig. 2, fig. 4 and fig. 5, four damping rods 19 are respectively and fixedly installed at four corners of the bottom end of the base 1, mounting plates 20 are connected to the bottom ends of the damping rods 19, springs 21 are sleeved on the outer walls of the damping rods 19, the top ends of the springs 21 are connected with the bottom end of the base 1, the bottom ends of the springs 21 are connected with the top ends of the mounting plates 20, moving wheels 22 are installed at the bottom ends of the mounting plates 20, two pushing frames 23 are symmetrically installed on the left side wall of the base 1, pushing rods 24 are connected to the top ends of the two pushing frames 23, water guide blocks 25 are installed at the inner bottom end of the water tank 2, the top ends of the water guide blocks 25 incline to the right, an observation window 26 is fixedly installed at the right part of the front end of the water tank 2, and transparent toughened glass is arranged on the observation window 26;
the base 1 is pushed by the push rod 24 and the pushing frame 23, the base 1 is moved by the moving wheel 22, equipment is convenient to use in different construction sites, flexibility of the equipment is improved, damping transmission can be carried out in the moving process by the damping rod 19 and the mounting plate 20, shaking of water in the water tank 2 is reduced, stability is improved, water can flow to the right side when the ground is uneven by the water guide block 25, water pumping of the water pumping pipe 13 is guaranteed, residual quantity of water in the water tank 2 can be conveniently observed by the observation window 26, timely supplement is convenient, and convenience in use is improved.
As shown in fig. 1 to 5, in the dust suppression spraying device for a construction site, when the dust suppression spraying device works, a sealing cover 7 is opened, water is added into a water tank 2 through a water adding pipe 3, water can be filtered through a filter cylinder 5, large particle impurities and the like in the water are prevented from entering the water tank 2, a push rod 24 and a pushing frame 23 push a base 1, the base 1 is enabled to move through a moving wheel 22, equipment is convenient to use in different construction sites, damping transmission can be carried out in the moving process through a damping rod 19 and a mounting plate 20, shaking of the water in the water tank 2 is reduced, the spraying height can be adjusted through an electric telescopic rod 8, a forward and backward rotating motor 11 can be started to drive a first spray pipe 10 to rotate on a fixed seat 9, so that the spraying direction is adjusted, a water pump 12 is started, the water in the water tank 2 is pumped through a water pumping pipe 13, the water is filtered again through a filter screen 14, the water is input into the first spray pipe 10 through a connecting hose 15, the water is input into a second spray pipe 17 through an extension pipe 16, the water is sprayed outwards through an atomizing nozzle 18, and the spraying area is increased through the extension pipe 16 and the second spray pipe 17.
The positive and negative rotation motor 11 and the water suction pump 12 of the dust suppression spraying device for the construction site are purchased in the market, and a person skilled in the art only needs to install and operate according to the attached use instruction without creative labor of the person skilled in the art.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present utility model, and these modifications and variations should also be regarded as the scope of the utility model.
Claims (5)
1. A dust suppression spraying device for a construction site comprises a base (1) and a water tank (2), wherein the water tank (2) is fixedly connected to the top end of the base (1); the water adding device is characterized by further comprising a water adding mechanism, an adjusting mechanism, a spraying mechanism and a moving mechanism, wherein the water adding port is formed in the left part of the top end of the water tank (2), the water adding mechanism is arranged at the water adding port, the adjusting mechanism is arranged at the top end of the water tank (2), the spraying mechanism is arranged at the top end of the base (1), the output end of the spraying mechanism is positioned on the adjusting mechanism, and the moving mechanism is arranged at the bottom end of the base (1) and drives equipment to move; the regulating mechanism comprises two electric telescopic rods (8), two fixing seats (9), a first spray pipe (10) and a forward and backward rotating motor (11), wherein the two electric telescopic rods (8) are symmetrically arranged at the left end and the right end of the top of the water tank (2), the fixing seats (9) are arranged at the top ends of the electric telescopic rods (8), the first spray pipe (10) is movably arranged between the two fixing seats (9), the right end of the first spray pipe (10) penetrates through the fixing seats (9) and is connected with the output end of the forward and backward rotating motor (11), and the forward and backward rotating motor (11) is fixedly arranged on the right side wall of the fixing seat (9).
2. The site dust suppression spraying device according to claim 1, wherein the water adding mechanism comprises a water adding pipe (3), a baffle ring (4), a filter cartridge (5), a handle (6) and a sealing cover (7), the water adding pipe (3) is fixedly arranged at a water adding port of the water tank (2), the baffle ring (4) is fixedly arranged on the inner wall of the water adding pipe (3), the upper part of the filter cartridge (5) is arranged at the top end of the baffle ring (4), a plurality of filter holes are uniformly formed in the bottom end of the filter cartridge (5), the handle (6) is movably arranged at the top of the filter cartridge (5), and the sealing cover (7) is arranged at the top input end of the water adding pipe (3) in a covering mode.
3. The site dust suppression spraying device according to claim 1, wherein the spraying mechanism comprises a water suction pump (12), a water suction pipe (13), a filter screen (14), a connecting hose (15), two extension pipes (16), a second spray pipe (17) and a plurality of atomizing nozzles (18), wherein the water suction pump (12) is fixedly arranged at the top end of a water tank (2) between two electric telescopic rods (8), the water suction pipe (13) is connected with the input end of the water suction pump (12), the input end of the water suction pipe (13) stretches into the right side of the bottom end of the inside of the water tank (2), the filter screen (14) is fixedly connected, the output end of the water suction pump (12) is connected with the input end of a first spray pipe (10) through the connecting hose (15), the two extension pipes (16) are respectively communicated with the left end and the right end of the top of the first spray pipe (10), the second spray pipe (17) is arranged at the top end of the extension pipes (16), the atomizing nozzles (18) are obliquely arranged on the side walls of the front end and the back end of the first spray pipe (10), and the atomizing nozzles (17) are uniformly arranged at the top end of the second spray pipe (17).
4. The site dust suppression spraying device according to claim 1, wherein the moving mechanism comprises four damping rods (19), four mounting plates (20), four springs (21), four moving wheels (22), two pushing frames (23) and pushing rods (24), the four damping rods (19) are respectively and fixedly installed at four corners of the bottom end of the base (1), the mounting plates (20) are connected to the bottom ends of the damping rods (19), the springs (21) are sleeved on the outer walls of the damping rods (19), the top ends of the springs (21) are connected with the bottom ends of the base (1), the bottom ends of the springs (21) are connected with the top ends of the mounting plates (20), the moving wheels (22) are installed at the bottom ends of the mounting plates (20), the two pushing frames (23) are symmetrically installed on the left side wall of the base (1), and the pushing rods (24) are connected to the top ends of the two pushing frames (23).
5. A site dust suppression sprinkler as claimed in claim 1, further comprising a water guide block (25) and an observation window (26), wherein the water guide block (25) is mounted at the inner bottom end of the water tank (2), the top end of the water guide block (25) is inclined to the right side, the observation window (26) is fixedly mounted at the right part of the front end of the water tank (2), and transparent toughened glass is arranged on the observation window (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322001359.8U CN220758495U (en) | 2023-07-28 | 2023-07-28 | Dust suppression spraying device for construction site |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322001359.8U CN220758495U (en) | 2023-07-28 | 2023-07-28 | Dust suppression spraying device for construction site |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220758495U true CN220758495U (en) | 2024-04-12 |
Family
ID=90604275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322001359.8U Active CN220758495U (en) | 2023-07-28 | 2023-07-28 | Dust suppression spraying device for construction site |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220758495U (en) |
-
2023
- 2023-07-28 CN CN202322001359.8U patent/CN220758495U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN220758495U (en) | Dust suppression spraying device for construction site | |
| CN214273869U (en) | Cleaning device for wind power generation blade | |
| CN111991957A (en) | Earthwork is scarfing cinder dust device for engineering | |
| CN217950449U (en) | A on-vehicle automatic spraying dust device for mine mountain area dust | |
| CN213980851U (en) | Dust device is used in tunnel construction with high-efficient dust removal function | |
| CN210987487U (en) | Agricultural irrigation device with water conservation function | |
| CN213662904U (en) | Novel agricultural machine irrigates mechanism | |
| CN215352656U (en) | Efficient energy-saving dust-raising-preventing device for building construction | |
| CN211987798U (en) | Dust suppression device for coal mining | |
| CN214862187U (en) | Dust suppression device for green building construction | |
| CN215085792U (en) | Dust removal equipment for open-pit mining | |
| CN218716947U (en) | Dust removal blast apparatus for coal mine machine | |
| CN219849831U (en) | Dustproof structure for concrete crusher | |
| CN210829368U (en) | Mine dust-proof purification device | |
| CN211585849U (en) | Movable air purification device | |
| CN212324986U (en) | Sprinkling irrigation equipment for environmental protection afforestation | |
| CN217119740U (en) | Water saving fixtures of green building | |
| CN218553525U (en) | Dust collector with adjustable interior decoration is used | |
| CN219630955U (en) | Dust collecting equipment that heavy calcium carbonate production was used | |
| CN211358223U (en) | Dust collector for plastics paint removal | |
| CN217247153U (en) | Filter for irrigation water | |
| CN218175551U (en) | Road surface reducing mechanism | |
| CN217139461U (en) | Environment-friendly town road construction sprays dust device | |
| CN213510715U (en) | Mining area dust fall water atomizer | |
| CN220238152U (en) | Dust fall device for muck transportation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |