CN216238711U - Wheel loader capable of achieving water sprinkling and floor sweeping functions - Google Patents

Wheel loader capable of achieving water sprinkling and floor sweeping functions Download PDF

Info

Publication number
CN216238711U
CN216238711U CN202122605664.9U CN202122605664U CN216238711U CN 216238711 U CN216238711 U CN 216238711U CN 202122605664 U CN202122605664 U CN 202122605664U CN 216238711 U CN216238711 U CN 216238711U
Authority
CN
China
Prior art keywords
sweeping
fixedly connected
loader
groove
wall
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
Application number
CN202122605664.9U
Other languages
Chinese (zh)
Inventor
李长强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shandong Huawei Zhongte Machinery Co ltd
Original Assignee
Shandong Huawei Zhongte Machinery Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shandong Huawei Zhongte Machinery Co ltd filed Critical Shandong Huawei Zhongte Machinery Co ltd
Priority to CN202122605664.9U priority Critical patent/CN216238711U/en
Application granted granted Critical
Publication of CN216238711U publication Critical patent/CN216238711U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Refuse Collection And Transfer (AREA)

Abstract

The utility model discloses a wheel loader capable of achieving a watering and sweeping function, which comprises a bracket, a water storage tank, a sweeping box, a rotating motor and a loader main body, wherein the water storage tank is arranged at one end of the top end of the bracket, the loader main body is fixedly connected to one side of the top end of the bracket, the sweeping box is movably connected to one side of the loader main body, the rotating motor is arranged on one side of the outer wall of the sweeping box, and an inclined oil cylinder is arranged on one side, far away from the rotating motor, of the outer wall of the sweeping box. This wheel loader who realizes watering function of sweeping floor when using, through being provided with water storage tank, sprinkler pipe, slope hydro-cylinder, sweep the ground case, brush and rotary motor of sweeping floor, can be in the use of loader, after the loader cleans the rubbish on ground of being convenient for, carries out watering work to ground, can bury because ground has been cleaned the produced dust of rubbish, reduces the raise dust degree of dust, has promoted the practicality of loader.

Description

Wheel loader capable of achieving water sprinkling and floor sweeping functions
Technical Field
The utility model relates to the technical field of loaders, in particular to a wheel loader capable of achieving a watering and sweeping function.
Background
The loader is a kind of earth and stone construction machinery widely used in highway, railway, building, water and electricity, port and mine, and is mainly used for shoveling and loading bulk materials such as soil, gravel, lime and coal, and also for light shoveling and digging of ore and hard soil. The different auxiliary working devices can be replaced to carry out bulldozing, hoisting and other material loading and unloading operations such as wood. In road construction, particularly in high-grade highway construction, the loader is used for filling and digging of roadbed engineering, and collecting and loading of asphalt mixture and cement concrete yards. Besides, the machine can also carry out the operations of pushing and transporting soil, scraping the ground, pulling other machines and the like. The loader has the advantages of high operation speed, high efficiency, good maneuverability, light operation and the like, so the loader becomes one of the main types of earthwork construction in engineering construction
At present, the common loader can only realize the shoveling function, and has the loader of the sweeping function, the sweeping device easily causes dust flying all day after sweeping the road surface, pollutes the environment, has poor environmental protection performance, and improves and innovates the design on the original sweeping loader aiming at the problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a wheel loader capable of realizing a watering and sweeping function, and aims to solve the problems that when the wheel loader capable of realizing the watering and sweeping functions is used, dust is easy to fly all day after the loader sweeps a road surface, the environment is polluted, the environmental protection performance is poor, after the loader sweeps the garbage in the loader, the garbage needs to be placed in a garbage containing box, the garbage containing box and the sweeping box are not convenient to disassemble quickly, after the loader is moved, and when the loader is parked and fixed in an idle state, the loader is not stable in support, and a support mechanism is not convenient to install and disassemble quickly.
In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a realize wheel loader of watering function of sweeping floor, includes bracket, water storage tank, sweeps floor case, rotating motor and loader main part, the one end on bracket top is provided with the water storage tank, and one side fixedly connected with loader main part on bracket top, one side swing joint of loader main part has the case of sweeping floor, and sweeps floor one side of incasement wall and be provided with rotating motor, sweep floor one side that the case outer wall kept away from rotating motor and be provided with the slope hydro-cylinder, and sweep the bottom fixedly connected with brush of sweeping floor of case, sweep a plurality of watering pipes of top fixedly connected with of case.
Preferably, the top and the bottom at bracket both ends are all fixedly connected with down tube, and the intermediate position at bracket both ends is all fixedly connected with connecting rod, the one end fixedly connected with support column of down tube and connecting rod.
Preferably, one side demountable installation of sweeping the ground case has rubbish to hold the case, and the junction that water storage tank and rubbish held the roof portion is provided with rotatory hinge, the draw-in groove has been seted up on the top of rubbish holding incasement wall one side.
Preferably, the inside top that is close to rubbish containing box one side of sweeping the ground case is seted up flutedly, and the inside of recess is provided with coupling mechanism.
Preferably, coupling mechanism includes cardboard, coupling spring, telescopic link, fixed frame, spout and slide bar, fixed frame fixed connection is in one side of recess inner wall, the top and the bottom of fixed frame inner wall are seted up to the spout, one side of telescopic link and the inside wall fixed connection of fixed frame, the one end of slide bar constitutes sliding connection structure with the inboard of spout, and the other end of slide bar and the lateral wall fixed connection of telescopic link, coupling spring's one end and the top and the bottom fixed connection of fixed frame inside wall, and coupling spring's the other end and the lateral wall fixed connection of slide bar, one side fixed connection of fixed frame is kept away from with the telescopic link to one side of cardboard, and the inboard of cardboard and draw-in groove constitutes joint connection structure.
Preferably, the bottom demountable installation of support column has the supporting seat, and the inboard of supporting seat is provided with installation mechanism.
Preferably, installation mechanism includes block rubber, spacing groove, mounting groove, limiting plate, gag lever post and fixing bolt, the top at the supporting seat is seted up to the mounting groove, the inboard of mounting groove is the joint with the bottom of support column and is connected, the gag lever post runs through in the inside bottom of support column, limiting plate fixed connection is in one side of gag lever post, the top and the bottom of the inside both sides of supporting seat are seted up to the spacing groove, fixing bolt constitutes joint mounting structure with the inboard of spacing groove, the block rubber sets up between the lateral wall of mounting groove and support column.
Compared with the prior art, the utility model has the beneficial effects that: this kind of wheel loader who realizes watering function of sweeping floor can bury because ground has been cleaned the produced dust of rubbish, reduces the raise dust degree of dust, has promoted the practicality of loader, can empty the rubbish of depositing with rubbish holding incasement portion and handle, and rubbish holds the case and sweep floor and be connected between the case more stably, and can dismantle between support column and the supporting seat through being connected, is convenient for promote the dismouting efficiency between the device part.
1. By arranging the water storage tank, the sprinkling pipe, the inclined oil cylinder, the floor sweeping box, the floor sweeping brush and the rotary motor, the loader can conveniently sweep the garbage on the ground and then sprinkle the garbage on the ground in the use process of the loader, the dust generated by the garbage swept on the ground can be buried, the dust raising degree of the dust is reduced, and the practicability of the loader is improved;
2. the garbage sweeping device is provided with the garbage containing box, the clamping groove, the clamping plate, the connecting spring, the telescopic rod, the fixing frame, the sliding groove and the sliding rod, garbage after ground sweeping can be stored in the garbage containing box, the garbage containing box can be conveniently dismounted through the detachable connection between the garbage containing box and the sweeping box, the garbage stored in the garbage containing box can be dumped, and the connection between the garbage containing box and the sweeping box is more stable;
3. through being provided with down tube, support column, block rubber, spacing groove, mounting groove, limiting plate, gag lever post, fixing bolt, supporting seat and connecting rod, can remove when fixed at the loader, be convenient for better carry out the auxiliary stay to the loader, and can dismantle between support column and the supporting seat and be connected, the dismouting efficiency between the hoisting device part of being convenient for.
Drawings
FIG. 1 is a schematic perspective view of the main body of the device of the present invention;
FIG. 2 is a schematic view of a connecting structure of the garbage containing box and the sweeping box of the present invention;
FIG. 3 is an enlarged view of the structure at A in FIG. 2 according to the present invention;
FIG. 4 is a schematic view of the bracket structure of the present invention;
FIG. 5 is a schematic view of a connection structure of a support pillar and a support seat according to the present invention;
FIG. 6 is a schematic top view of the main body of the present invention.
In the figure: 1. a bracket; 2. a water storage tank; 3. rotating the hinge; 4. a sprinkler pipe; 5. a trash holding bin; 501. a card slot; 6. inclining the oil cylinder; 7. a floor sweeping box; 701. a sweeping brush; 8. a rotary motor; 9. a loader body; 10. a connecting mechanism; 1001. clamping a plate; 1002. a connecting spring; 1003. a telescopic rod; 1004. a fixing frame; 1005. a chute; 1006. a slide bar; 11. a groove; 12. a diagonal bar; 13. a support pillar; 14. an installation mechanism; 1401. a rubber block; 1402. a limiting groove; 1403. mounting grooves; 1404. a limiting plate; 1405. a limiting rod; 1406. fixing the bolt; 15. a supporting seat; 16. a connecting rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, the present invention provides a technical solution: a wheel loader for realizing the functions of sprinkling and sweeping, please refer to figures 1 and 2, comprising a bracket 1, a water storage tank 2, a sweeping box 7, a rotary motor 8 and a loader main body 9, wherein the water storage tank 2 is arranged at one end of the top end of the bracket 1, water can be stored through the water storage tank 2, the water storage tank is convenient to fetch at any time, the sprinkling work of the ground is carried out, the loader main body 9 is fixedly connected to one side of the top end of the bracket 1, the sweeping box 7 is movably connected to one side of the loader main body 9, the rotary motor 8 is arranged at one side of the outer wall of the sweeping box 7, the rotary motor 8 is connected to the power supply of the rotary motor 8, the sweeping box 7 can start sweeping work, an inclined oil cylinder 6 is arranged at one side of the outer wall of the sweeping box 7 far away from the rotary motor 8, the sweeping box 7 can move back and forth linearly under the action of the inclined oil cylinder 6, the sweeping range area is increased, and the sweeping brush 701 is fixedly connected to the bottom end of the sweeping box 7, through brush 701 and the ground contact of sweeping the floor, clean subaerial rubbish, sweep a plurality of sprinkler pipes 4 of the top fixedly connected with of case 7, carry the inside water source of 2 inside water storage tanks to sprinkler pipe 4, to the watering on ground, through the dual combination of watering and cleaning, can clean subaerial rubbish after, to the watering on ground, be convenient for bury because the produced dust of cleaning rubbish to this raise dust rate that reduces the dust.
Referring to fig. 1 and 3, a garbage containing box 5 is detachably mounted on one side of a floor sweeping box 7, garbage can be placed in the garbage containing box 5 for storage after being swept, a rotating hinge 3 is arranged at the joint of a water storage tank 2 and the top of the garbage containing box 5, the garbage containing box 5 can be driven to synchronously move by the rotating hinge 3 when the floor sweeping box 7 moves, a clamping groove 501 is formed at the top end of one side of the inner wall of the garbage containing box 5, a groove 11 is formed at the top end of one side of the floor sweeping box 7, which is close to the garbage containing box 5, a connecting mechanism 10 is arranged in the groove 11, the connection between the garbage containing box 5 and the floor sweeping box 7 can be realized by the connecting mechanism 10, the connecting mechanism 10 comprises a clamping plate 1001, a connecting spring, a telescopic rod 1002, a fixing frame 1003, a sliding chute 1005 and a sliding rod 1006, the fixing frame 1004 is fixedly connected to one side of the inner wall of the groove 11, the sliding chute 1005 is formed at the top and the bottom of the inner wall 1004 of the fixing frame, one side of the telescopic rod 1003 is fixedly connected with the inner side wall of the fixed frame 1004, one end of the sliding rod 1006 and the inner side of the sliding groove 1005 form a sliding connection structure, the other end of the sliding rod 1006 and the outer side wall of the telescopic rod 1003 are fixedly connected, when the telescopic rod 1003 extends outwards, the sliding rod 1006 can slide outwards in the inner side of the sliding groove 1005, the stability when the telescopic rod 1003 extends outwards is kept, one end of the connecting spring 1002 is fixedly connected with the top end and the bottom end of the inner side wall of the fixed frame 1004, the other end of the connecting spring 1002 is fixedly connected with the side wall of the sliding rod 1006, when the sliding rod 1006 slides outwards in the inner side of the sliding groove 1005, the length of the connecting spring 1002 can be stretched, one side of the clamping plate 1001 is fixedly connected with one side of the telescopic rod 1003 far away from the fixed frame 1004, the clamping connection structure is formed by the clamping plate 1001 and the inner side of the clamping groove 501, when the sliding rod 1006 extends outwards, the clamping plate 1001 can drive the clamping plate 1001 to move towards the direction of the garbage containing box 5, until the clamping plate 1001 is clamped into the clamping groove 501, the garbage containing box 5 and the sweeping box 7 are connected.
Referring to fig. 4 and 5, the top and the bottom of the two ends of the bracket 1 are both fixedly connected with the diagonal rods 12, the middle positions of the two ends of the bracket 1 are both fixedly connected with the connecting rods 16, one ends of the diagonal rods 12 and the connecting rods 16 are fixedly connected with the supporting columns 13, the diagonal rods 12 are fixedly connected with the supporting columns 13 and the connecting rods 16, and the connecting rods 16 are stably supported, the bottom ends of the supporting columns 13 are detachably provided with the supporting seats 15, the supporting seats 15 are in contact with the ground through the supporting seats 15, and the loader is stably supported and can be conveniently and flexibly used through disassembly, the inner side of the supporting seat 15 is provided with the mounting mechanism 14, the mounting mechanism 14 comprises a rubber block 1401, a limiting groove 1402, a mounting groove 1403, a limiting plate 1404, a limiting rod 1405 and a fixing bolt 1406, the mounting groove 1403 is arranged at the top of the supporting seat 15, and the inner side of the mounting groove 1403 is connected with the bottom ends of the supporting columns 13 in a clamping manner, the bottom end of the supporting column 13 is placed inside the mounting groove 1403, the supporting column 13 is connected with the supporting seat 15, the limiting rod 1405 penetrates through the bottom end inside the supporting column 13, the bottom of the supporting column 13 can be limited by the limiting rod 1405, the limiting plate 1404 is fixedly connected to one side of the limiting rod 1405, the limiting rod 1405 can be limited and fixed, the limiting grooves 1402 are arranged at the top end and the bottom end of the two sides in the supporting seat 15, the fixing bolts 1406 and the inner side of the limiting grooves 1402 form a clamping installation structure, the connection stability of the limit plate 1404 and the limit rod 1405 is improved by penetrating the fixing bolt 1406 through the top and the bottom of the inner side of the limit plate 1404 and fixing one end of the fixing bolt 1406 at the inner side of the limit groove 1402 in a limit manner, the rubber block 1401 is arranged between the mounting groove 1403 and the side wall of the support column 13, the stability of the installation between the supporting column 13 and the supporting seat 15 can be improved by the rubber block 1401.
The working principle is as follows: at first can remove the loader, at the in-process that removes, start rotary motor 8 through external power supply, can make to sweep the ground case 7 and drive brush 701 of sweeping the floor and clean the operation to subaerial rubbish to with the inside rivers pump delivery of 2 inside water storage tanks to the inboard of sprinkler pipe 4, carry out the watering operation to ground, and under starting the effect of slope hydro-cylinder 6, can drive and sweep the ground case 7 and carry out sharp reciprocating motion, be convenient for better carry out ground rubbish and clean the work.
Secondly, can deposit rubbish after cleaning in rubbish and hold the inboard of case 5 temporarily, tensile through telescopic link 1003, can make slide bar 1006 outwards slide in the inboard of spout 1005, at the outside gliding in-process of slide bar 1006, can make connecting spring 1002's length stretch, the extension of telescopic link 1003 can drive cardboard 1001 and hold the direction removal of case 5 to rubbish, go into the inboard of draw-in groove 501 until with cardboard 1001 card, and bounce under connecting spring 1002 elasticity, can promote the fastness of joint between cardboard 1001 and the draw-in groove 501 inboard.
Finally, when the loader is not used, the loader can be fixed, through down tube 12, fixed connection between connecting rod 16 and the support column 13, can carry out the lateral stable support to support column 13, through placing the bottom of support column 13 in the inboard of mounting groove 1403, set up between the lateral wall of mounting groove 1403 and support column 13 through rubber block 1401, can promote the stability of support column 13 joint in the inboard of mounting groove 1403, and run through the bottom of support column 13 and the inboard of supporting seat 15 with gag lever post 1405, run through fixing bolt 1406 in the inboard top and bottom of limiting plate 1404, and the inside at spacing groove 1402 is fixed to the one end of fixing bolt 1406, fix the connection between limiting plate 1404 and gag lever post 1405, can further consolidate the stability of installing between support column 13 and the supporting seat 15.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments, examples of which are illustrated in the accompanying drawings, without departing from the principles and spirit of the utility model.

Claims (7)

1. The utility model provides a realize watering wheel loader of function of sweeping floor, includes bracket (1), water storage tank (2), case (7), swing motor (8) and loader main part (9) of sweeping floor, its characterized in that: the one end on bracket (1) top is provided with water storage tank (2), and one side fixedly connected with loader main part (9) on bracket (1) top, one side swing joint of loader main part (9) has and sweeps floor box (7), and sweeps one side of floor box (7) outer wall and be provided with swivel motor (8), sweep one side that swivel motor (8) were kept away from to floor box (7) outer wall and be provided with slope hydro-cylinder (6), and sweep the bottom fixedly connected with brush (701) of sweeping the floor of floor box (7), sweep a plurality of sprinkler pipes (4) of top fixedly connected with of floor box (7).
2. A wheel loader for realizing water sprinkling and sweeping functions according to claim 1, which is characterized in that: the top and the bottom at bracket (1) both ends are all fixedly connected with down tube (12), and the intermediate position at bracket (1) both ends is all fixedly connected with connecting rod (16), the one end fixedly connected with support column (13) of down tube (12) and connecting rod (16).
3. A wheel loader for realizing water sprinkling and sweeping functions according to claim 1, which is characterized in that: sweep one side demountable installation of ground case (7) and hold case (5) with rubbish, and water storage tank (2) and rubbish hold the junction at case (5) top and be provided with rotatory hinge (3), draw-in groove (501) have been seted up on the top that rubbish held case (5) inner wall one side.
4. A wheel loader for realizing water sprinkling and sweeping functions according to claim 1, which is characterized in that: a groove (11) is formed in the top end of one side, close to the garbage containing box (5), of the inside of the floor sweeping box (7), and a connecting mechanism (10) is arranged inside the groove (11).
5. A wheel loader for realizing water sprinkling and sweeping functions according to claim 4, which is characterized in that: the connecting mechanism (10) comprises a clamping plate (1001), a connecting spring (1002), an expansion rod (1003), a fixed frame (1004), a sliding groove (1005) and a sliding rod (1006), wherein the fixed frame (1004) is fixedly connected to one side of the inner wall of the groove (11), the sliding groove (1005) is formed in the top and the bottom of the inner wall of the fixed frame (1004), one side of the expansion rod (1003) is fixedly connected with the inner side wall of the fixed frame (1004), one end of the sliding rod (1006) and the inner side of the sliding groove (1005) form a sliding connection structure, the other end of the sliding rod (1006) is fixedly connected with the outer side wall of the expansion rod (1003), one end of the connecting spring (1002) is fixedly connected with the top end and the bottom end of the inner side wall of the fixed frame (1004), the other end of the connecting spring (1002) is fixedly connected with the side wall of the sliding rod (1006), one side of the clamping plate (1001) is fixedly connected with one side of the expansion rod (1003) far away from the fixed frame (1004), and the clamping plate (1001) and the inner side of the clamping groove (501) form a clamping connection structure.
6. A wheel loader for realizing water sprinkling and sweeping functions according to claim 2, which is characterized in that: the bottom demountable installation of support column (13) has supporting seat (15), and the inboard of supporting seat (15) is provided with installation mechanism (14).
7. A wheel loader for realizing water sprinkling and sweeping functions according to claim 6, which is characterized in that: installation mechanism (14) include rubber block (1401), spacing groove (1402), mounting groove (1403), limiting plate (1404), gag lever post (1405) and fixing bolt (1406), the top of supporting seat (15) is seted up in mounting groove (1403), the inboard of mounting groove (1403) is the joint with the bottom of support column (13) and is connected, gag lever post (1405) run through in the inside bottom of support column (13), limiting plate (1404) fixed connection is in one side of gag lever post (1405), the top and the bottom of the inside both sides of supporting seat (15) are seted up in limiting groove (1402), fixing bolt (1406) constitute joint mounting structure with the inboard of spacing groove (1402), rubber block (1401) set up between the lateral wall of mounting groove (1403) and support column (13).
CN202122605664.9U 2021-10-28 2021-10-28 Wheel loader capable of achieving water sprinkling and floor sweeping functions Active CN216238711U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202122605664.9U CN216238711U (en) 2021-10-28 2021-10-28 Wheel loader capable of achieving water sprinkling and floor sweeping functions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202122605664.9U CN216238711U (en) 2021-10-28 2021-10-28 Wheel loader capable of achieving water sprinkling and floor sweeping functions

Publications (1)

Publication Number Publication Date
CN216238711U true CN216238711U (en) 2022-04-08

Family

ID=80993435

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202122605664.9U Active CN216238711U (en) 2021-10-28 2021-10-28 Wheel loader capable of achieving water sprinkling and floor sweeping functions

Country Status (1)

Country Link
CN (1) CN216238711U (en)

Similar Documents

Publication Publication Date Title
CN212428860U (en) Coal roadway driving and guniting device
CN108453071A (en) A kind of automatic transport cleaning device of construction material
CN216238711U (en) Wheel loader capable of achieving water sprinkling and floor sweeping functions
CN105369765B (en) A kind of road cleaning snow sweeper and manufacture method
CN210216268U (en) Treatment device for road construction garbage
CN217779787U (en) Grit conveyer belt
CN206319288U (en) A kind of road surface sweeper
CN210395215U (en) Road silt belt cleaning device for municipal works
CN113944093A (en) Road maintenance device for municipal construction
CN116200997A (en) Pavement brick maintenance vehicle and method
CN220184240U (en) Clear device of drawing of inspection shaft mud
CN219690387U (en) Urban sludge cleaning device
CN220813617U (en) Self-adjusting cleaner for loader
CN218224287U (en) Shovel grinding device of forklift for engineering
CN218258078U (en) Novel loader for building engineering
CN215668919U (en) Asphalt crack pouring device of highway maintenance vehicle
CN220621877U (en) Slurry spraying device for reinforcing surface of underground coal mine roadway
CN220394704U (en) Automatic river channel flushing integrated machine
CN215211210U (en) Rubble cleaning device of continuous wall construction usefulness
CN108296193A (en) A kind of building site construction material environmental protection cleaning robot
CN216739430U (en) Concrete cleaning device
CN220789371U (en) Integrated working vehicle for pavement brick joint filling
CN221193653U (en) Drainage dredging device
CN215253072U (en) Stone slag removing and conveying device for earthwork construction
CN216689523U (en) Forklift for municipal works

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant