CN216090367U - Cleaning assembly for mop bucket - Google Patents
Cleaning assembly for mop bucket Download PDFInfo
- Publication number
- CN216090367U CN216090367U CN202121811041.0U CN202121811041U CN216090367U CN 216090367 U CN216090367 U CN 216090367U CN 202121811041 U CN202121811041 U CN 202121811041U CN 216090367 U CN216090367 U CN 216090367U
- Authority
- CN
- China
- Prior art keywords
- pumping mechanism
- mop
- cleaning
- rotary joint
- water pumping
- 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
Images
Landscapes
- Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
Abstract
The utility model provides a cleaning assembly for a mop bucket, and belongs to the field of mops. The cleaning barrel is internally provided with a cleaning cavity, the cleaning cavity is internally provided with a water pumping mechanism, a rotary joint is arranged above the water pumping mechanism, a clutch mechanism is arranged between the rotary joint and the water pumping mechanism, and the clutch mechanism can enable the rotary joint to be circumferentially fixedly connected with or separated from the water pumping mechanism. Its advantage lies in the cleaning process surface of water and mop direct contact, sprays water on the mop through pump water mechanism, and the impurity that washes down can be stayed aquatic and can not washed to the mop along with rivers once more, increases abluent efficiency. And the rotary joint and the water pumping mechanism can be circumferentially fixedly connected or separated through the clutch mechanism, so that the switching of the cleaning step and the spin-drying step is realized.
Description
Technical Field
The utility model belongs to the field of mops, and particularly relates to a cleaning assembly for a mop bucket.
Background
The spin-drying mop kit has the advantages of convenient cleaning and dehydration, particularly can realize the cleaning effect of a semi-dry wet mop, and is widely used in life at present. The novel spin-drying mop comprises a mop barrel and a mop rod, a common spin-drying mop kit on the market at present generally comprises the mop barrel and a mop body, the mop head of the mop body is cleaned and dried in the mop barrel, particularly, when the mop is cleaned, stains or hairs cleaned from the mop can float on the water surface, the stains can be adhered to the mop again along with the cleaning of the mop, and particularly, when the mop is taken out or dirty water is discharged, the stains can be adhered to the mop again, so that the cleaning efficiency is greatly reduced. When the mop is wiped dry, the stains or the stains are left on the mop, so that the mop cannot be cleaned or is wound on the water scraping piece.
Disclosure of Invention
It is an object of the present invention to address the above problems and provide a cleaning assembly for a mop bucket.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a clean subassembly for mop bucket, includes clean bucket, clean bucket in be equipped with clean chamber, clean intracavity be equipped with pump water mechanism, the top of pump water mechanism rotary joint has, rotary joint and pump water mechanism between be equipped with clutching mechanism, clutching mechanism can make rotary joint and pump water mechanism circumference link firmly or separate.
In the above cleaning assembly for a mop bucket, the clutch mechanism comprises gear rings which are respectively arranged between the rotating shaft of the water pumping mechanism and the rotating joint and can be meshed with each other.
In the cleaning assembly for the mop bucket, a guiding and positioning structure which can switch the circumferential fixed connection and separation states of the rotary joint and the water pumping mechanism is further arranged between the cleaning cavity and the rotary joint.
In the above cleaning assembly for a mop bucket, the guiding and positioning structure includes a first positioning portion and a second positioning portion, a track region is disposed between the first positioning portion and the second positioning portion, a sliding block sliding in the track region is disposed on the rotary joint, the sliding block is located at the first positioning portion and can separate the rotary joint from the water pumping mechanism, and the sliding block is located at the second positioning portion and can circumferentially and fixedly connect the rotary joint with the water pumping mechanism.
In the above cleaning assembly for a mop bucket, the first positioning portion is located at the upper end of the track area, the second positioning portion is located at the lower end of the track area, the rotating joint moves downwards to enable the rotating joint to be clamped with the water pumping mechanism through the clutch mechanism, and the rotating joint moves upwards to enable the rotating joint to be disconnected with the water pumping mechanism.
In the above cleaning assembly for a mop bucket, the first positioning portion and the second positioning portion each include two mutually connected clamping surfaces, an acute angle is formed between the two mutually connected clamping surfaces, and the sliding block can abut against the two mutually connected clamping surfaces.
In the cleaning component for the mop bucket, the positioning guide structure further comprises a plurality of track areas, the track areas are in an annular array shape along the outer surface of the water pumping mechanism, and the track areas are sequentially connected end to form a closed circulation channel.
In the cleaning assembly for the mop bucket, the rotary joint is provided with the hollow rotary drum, the water pumping mechanism is connected with the rotary drum in a sliding manner, the rotary drum extends into the water pumping mechanism, the track area is arranged on the outer ring of the water pumping mechanism, and the sliding block is arranged on the rotary drum.
In the above-mentioned cleaning assembly for mop bucket, still include the clean gyro wheel that rotates the setting in clean intracavity, clean intracavity be equipped with the gyro wheel support, clean gyro wheel and gyro wheel support between be equipped with the elasticity piece that resets.
In the cleaning component for the mop bucket, the rotary joint is also provided with a plurality of spraying ports which are communicated with the water outlet of the water pumping mechanism.
Compared with the prior art, the utility model has the advantages that:
1. the water surface is not directly contacted with the mop in the cleaning process, the water is sprayed on the mop through the water pumping mechanism, and the washed impurities are left in the water and cannot be washed onto the mop along with the water flow, so that the cleaning efficiency is improved. And the rotary joint and the water pumping mechanism can be circumferentially fixedly connected or separated through the clutch mechanism, so that the switching of the cleaning step and the spin-drying step is realized.
2. The guide positioning structure can enable the rotary joint and the water pumping mechanism to be in a circumferentially fixed connection state or a separated state all the time, so that the mop can be in a cleaning state or a drying state stably.
Drawings
FIG. 1 is a schematic view of the present invention in a cleaning state;
FIG. 2 is a schematic structural view of the present invention in a spin-dry state;
FIG. 3 is a schematic view of the connection of the slider block to the track area in a cleaning state;
FIG. 4 is a schematic view of the connection of the slider block to the track section in a spin-dry state;
FIG. 5 is a schematic view of the connection of the water pumping mechanism to the swivel joint in a cleaning state;
fig. 6 is a schematic view of the connection of the water pumping mechanism and the rotary joint in a spin-drying state.
In the figure: the cleaning device comprises a cleaning barrel 10, a cleaning cavity 11, a water pumping mechanism 12, a rotary joint 13, a clutch mechanism 14, a guiding and positioning structure 15, a first positioning part 16, a second positioning part 17, a track area 18, a sliding block 19, a clamping surface 20, a rotary drum 21, a cleaning roller 22, a roller support 23, a spraying opening 24 and a spiral water taking plate 25.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1-6, a cleaning assembly for a mop bucket comprises a cleaning bucket 10, a cleaning cavity 11 is arranged in the cleaning bucket 10, a water pumping mechanism 12 is arranged in the cleaning cavity 11, a rotary joint 13 is arranged above the water pumping mechanism 12, a clutch mechanism 14 is arranged between the rotary joint 13 and the water pumping mechanism 12, and the clutch mechanism can circumferentially fixedly connect or separate the rotary joint 13 and the water pumping mechanism 12.
In the present invention, the mop is fitted over the rotary joint 13 and is engaged with the rotary joint 13. In the cleaning process, the rotating joint 13 is circumferentially and fixedly connected with the water pumping mechanism 12 through the clutch mechanism 14, the mop is electrically rotated or manually rotated, the water pumping mechanism 12 works through the circumferential and fixedly connected of the rotating joint 13 and the water pumping mechanism 12, the water inlet of the water pumping mechanism 12 is positioned at the bottom of the cleaning cavity 11 and below the water level line, and the water can be upwards sprayed and sprayed on the mop through the work of the water pumping mechanism 12, so that the mop is cleaned. During the mop drying process, the clutch mechanism 14 separates the rotary joint 13 from the water pumping mechanism 12, and the electric rotation or the manual rotation of the mop does not rotate the water pumping mechanism 12, so that water is not sprayed upwards on the mop during the process, and the mop is only rotated in a drying state. The water surface of the mop is not directly contacted with the mop in the cleaning process, the water is sprayed on the mop through the water pumping mechanism 12, and the washed impurities are left in the water and cannot be washed onto the mop along with the water flow, so that the cleaning efficiency is improved.
The clutch mechanism 14 comprises gear rings which are respectively arranged between the rotating shaft of the water pumping mechanism 12 and the rotating joint 13 and can be meshed with each other.
In the present invention, the rotary joint 13 and the water pumping mechanism 12 are circumferentially fixedly connected by means of the meshing of the ring gear provided on the rotary shaft of the water pumping mechanism 12 and the ring gear provided on the rotary joint 13. The gear ring can be composed of a plurality of straight teeth, can also be composed of a plurality of helical teeth, and can also be in other clamping connection forms. The circumferential fixing and separation of the rotary joint 13 and the water pumping mechanism 12 are realized through the engagement or disengagement of the two gear rings.
Preferably, the water pumping mechanism 12 comprises a pump body, the pump body is internally provided with a spiral water taking plate 25, the rotation of the spiral water taking plate 25 enables water to be sprayed out, the spiral water taking plate 25 is arranged on a rotating shaft, the rotating shaft extends out of the pump body, and one circle of gear rings is arranged on the rotating shaft.
And a guide positioning structure 15 which can switch the circumferential fixedly connected and separated states of the rotary joint 13 and the water pumping mechanism 12 is also arranged between the cleaning cavity 11 and the rotary joint 13.
In the utility model, the guiding and positioning structure 15 is used for switching the circumferential fixed connection and separation states of the rotary joint 13 and the water pumping mechanism 12, and also has a positioning function, and the guiding and positioning structure 15 can enable the rotary joint 13 and the water pumping mechanism 12 to be in the circumferential fixed connection state or in the separation state all the time, so that the mop can be stably in a cleaning state or a drying state.
The guiding and positioning structure 15 includes a first positioning portion 16 and a second positioning portion 17, a track area 18 is disposed between the first positioning portion 16 and the second positioning portion 17, a sliding block 19 sliding in the track area 18 is disposed on the rotary joint 13, the sliding block 19 is located at the first positioning portion 16 to separate the rotary joint 13 from the water pumping mechanism 12, and the sliding block 19 is located at the second positioning portion 17 to circumferentially fix the rotary joint 13 to the water pumping mechanism 12.
In the utility model, when the mop is in a cleaning state, the sliding block 19 slides to the second positioning part 17, and the rotary joint 13 and the water pumping mechanism 12 are in a state of being fixedly connected in the circumferential direction through two circles of gear rings, and the cleaning work of the mop is carried out. When the washing state is switched to the spin-drying state, the sliding block 19 is separated from the second positioning portion 17 and slides in the track area 18, the sliding block 19 slides along the track area 18 and slides to the first positioning portion 16, the sliding block 19 and the rotary joint 13 are synchronous, the rotary joint 13 and the water pumping mechanism 12 are in a separated state, and therefore the mop rotates to the spin-drying state. Similarly, when the mop spin-drying state is switched to the cleaning state, the sliding block 19 is also moved from the first positioning portion 16 to the second positioning portion 17.
The first positioning part 16 is positioned at the upper end of the track area 18, the second positioning part 17 is positioned at the lower end of the track area 18, the rotary joint 13 can be clamped with the water pumping mechanism 12 through the clutch mechanism 14 when the rotary joint 13 moves downwards, and the rotary joint 13 can be disconnected from the water pumping mechanism 12 when the rotary joint 13 moves upwards.
In the present invention, when the mop is switched to the spin-drying state, the mop is lifted up, thereby driving the sliding block 19 to slide upward on the track area 18, and moving the sliding block 19 from the second positioning portion 17 to the first positioning portion 16; when the mop is switched to the cleaning state, the mop is moved downward, and the slider 19 is moved from the first positioning portion 16 to the second positioning portion 17, whereby the rotary joint 13 and the water pumping mechanism 12 are circumferentially secured. In addition, regardless of whether the mop is rotated in a washing state or in a spin-drying state, the sliding block 19 is caught at the second positioning portion 17 or at the first positioning portion 16, the rotation state of the mop is stably operated, and the rotary joint 13 is stably fixed or separated from the water pumping mechanism 12. In addition, the upper side of the mop shows that the rotary joint 13 is separated from the water pumping mechanism 12, and the lower side of the mop shows that the rotary joint 13 is fixedly connected with the water pumping mechanism 12, so that the cleaning or spin-drying state of the mop can be visually displayed.
The first positioning portion 16 and the second positioning portion 17 each include two mutually connected clamping surfaces 20, an acute angle is formed between the two mutually connected clamping surfaces 20, and the sliding block 19 can abut against the two mutually connected clamping surfaces 20.
In the utility model, the gravity of the mop is downward vertically, and the mop moves in the vertical direction to realize the switching of the cleaning or drying state of the mop. One of the two mutually connected clamping surfaces 20 is a transverse surface, the other is a vertical surface, when the mop is in a cleaning or spin-drying state, the sliding block 19 is abutted against the corresponding transverse surface, and in a rotating state, the sliding block 19 always rotates towards the direction of the corresponding vertical surface, so that the sliding block 19 is always abutted against the vertical surface and supported on the transverse surface simultaneously, and the stable operation of the rotating state of the mop is realized, and the rotary joint 13 and the water pumping mechanism 12 are in a fixed connection or separation state stably.
The guiding and positioning structure 15 further comprises a plurality of track areas 18, the track areas 18 are in an annular array shape along the outer surface of the water pumping mechanism 12, and the track areas 18 are sequentially connected end to form a closed circulation channel.
In the present invention, when the washing or spin-drying state of the mop is switched, the mop is rotated in the reverse direction of operation, so that the sliding piece 19 and the first positioning portion 16 or the second positioning portion 17 slide to the other second positioning portion 17 or the first positioning portion 16 in the track region 18. And a plurality of track areas 18 form a closed circulation channel, the mop can switch the cleaning or drying state of the mop along one direction of the track areas 18 repeatedly.
The rotary joint 13 is provided with a hollow rotary drum 21, the water pumping mechanism 12 is connected with the rotary drum 21 in a sliding manner, the rotary drum 21 extends into the water pumping mechanism 12, the track area 18 is arranged on the outer ring of the water pumping mechanism 12, and the sliding block 19 is arranged on the rotary drum 21.
In the utility model, the rotary drum 21 is used for connecting the rotary joint 13 and the sliding block 19, the rotary drum 21 is sleeved in the water pumping mechanism 12 and is in sliding connection with the inner wall of the outer ring of the water pumping mechanism 12, and the spiral water taking plate 25 in the water pumping mechanism 12 is positioned in the rotary drum 21, so that on one hand, the connection relation between the rotary joint 13 and the water pumping mechanism 12 can be stabilized, and on the other hand, the phenomenon that water in the water pumping mechanism 12 is not sprayed on the mop due to peripheral diffusion can be prevented.
Preferably, a guide groove matched with the rotating shaft of the water pumping mechanism 12 is arranged in the rotating joint 13, and the rotating shaft of the water pumping mechanism 12 extends into the guide groove and is in sliding connection with the guide groove. Further stabilizing the movement of the rotary joint 13 when switching states.
The cleaning device is characterized by further comprising a cleaning roller 22 rotatably arranged in the cleaning cavity 11, a roller bracket 23 is arranged in the cleaning cavity 11, and an elastic resetting piece is arranged between the cleaning roller 22 and the roller bracket 23.
In the present invention, in the cleaning state, the mop is pressed against the cleaning roller 22, and the cleaning roller 22 is pressed and the elastic restoring member is deformed, and the cleaning roller 22 is pressed against the mop by the reaction force of the elastic restoring member, and the mop is cleaned along with the spraying of the water pumping mechanism 12.
The rotary joint 13 is also provided with a plurality of spraying openings 24, and the plurality of spraying openings 24 are communicated with the water outlet of the water pumping mechanism 12.
In the utility model, in a cleaning state, the water sprayed by the water pumping mechanism 12 is sprayed out from the plurality of spraying openings 24, the plurality of spraying openings 24 can be arranged in an annular array, and the sprayed water can be uniformly sprayed on the mop.
The principle of the utility model is as follows:
the power for washing or drying the mop comes from the electric rotation or manual rotation of the mop. When the mop is switched to a spin-drying state, the mop is moved upwards to drive the sliding block 19 to slide in the track area 18 and make the sliding block 19 slide to the first positioning portion 16, the mop is put down to make the sliding block 19 abut against the transverse surface of the clamping surface 20 on the first positioning portion 16, and in the spin-drying process, the sliding block 19 rotates towards the vertical surface direction of the clamping surface 20 on the first positioning portion 16, so that the sliding block 19 is always positioned on the first positioning portion 16, even if the mop is stably in the spin-drying state and is subjected to spin-drying work. In the working process of switching the mop from the spin-drying state to the cleaning state, the mop is rotated in the direction opposite to the working rotation direction, so that the sliding block 19 is separated from the first positioning part 16 and slides into the track area 18, then the mop is moved downwards, the sliding block 19 is moved to the second positioning part 17 along the track area 18, the sliding block 19 is positioned at the second positioning part 17 according to the same principle as the positioning at the first positioning part 16, at the moment, the rotating joint 13 and the working shaft of the water pumping mechanism 12 are meshed through two circles of gear rings in circumferential direction and are abutted against the cleaning roller 22, at the moment, the rotation of the mop drives the rotation of the working shaft of the water pumping mechanism 12, and the water is sprayed upwards onto the mop by the operation of the water pumping mechanism 12 and is matched with the cleaning roller 22 for cleaning.
The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the utility model as defined in the appended claims.
Although the cleaning tub 10, the cleaning chamber 11, the water pumping mechanism 12, the rotary joint 13, the clutch mechanism 14, the guide positioning structure 15, the first positioning portion 16, the second positioning portion 17, the rail region 18, the sliding block 19, the clamping surface 20, the rotary drum 21, the cleaning roller 22, the roller bracket 23, the spray opening 24, the spiral water-fetching plate 25, etc., are more used herein, these terms are used only for convenience of describing and explaining the essence of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.
Claims (10)
1. The utility model provides a clean subassembly for mop bucket, includes clean bucket (10), clean bucket (10) in be equipped with clean chamber (11), its characterized in that, clean chamber (11) in be equipped with pump water mechanism (12), the top of pump water mechanism (12) rotary joint (13) have, rotary joint (13) and pump water mechanism (12) between be equipped with clutching mechanism (14), clutching mechanism can make rotary joint (13) and pump water mechanism (12) circumference link firmly or separate.
2. A cleaning assembly for a mop bucket according to claim 1, wherein the clutch mechanism (14) includes intermeshing toothed rings disposed between the shaft of the pumping mechanism (12) and the swivel joint (13), respectively.
3. A cleaning assembly for a mop bucket according to claim 2, wherein a guide positioning structure (15) which can switch the circumferential fixing and separating states of the rotary joint (13) and the water pumping mechanism (12) is further arranged between the cleaning cavity (11) and the rotary joint (13).
4. A cleaning assembly for a mop bucket according to claim 3, wherein the guide positioning structure (15) comprises a first positioning portion (16) and a second positioning portion (17), a track area (18) is arranged between the first positioning portion (16) and the second positioning portion (17), a sliding block (19) which slides in the track area (18) is arranged on the rotary joint (13), the sliding block (19) is positioned at the first positioning portion (16) to separate the rotary joint (13) from the water pumping mechanism (12), and the sliding block (19) is positioned at the second positioning portion (17) to circumferentially fix the rotary joint (13) to the water pumping mechanism (12).
5. A cleaning assembly as claimed in claim 4, wherein the first detent (16) is located at the upper end of the track region (18) and the second detent (17) is located at the lower end of the track region (18), the swivel joint (13) being movable downwardly to allow the swivel joint (13) to engage the pumping mechanism (12) via the clutch mechanism (14), and the swivel joint (13) being movable upwardly to allow the swivel joint (13) to disengage the pumping mechanism (12).
6. A cleaning assembly for a mop bucket according to claim 5, wherein the first locating portion (16) and the second locating portion (17) each comprise two interconnected catch surfaces (20), the two interconnected catch surfaces (20) forming an acute angle therebetween, the glide block (19) being abuttable against the two interconnected catch surfaces (20).
7. The cleaning assembly for the mop bucket according to claim 6, wherein the guiding and positioning structure (15) further comprises a plurality of track areas (18), the track areas (18) are annularly arrayed along the outer surface of the water pumping mechanism (12), and the track areas (18) are sequentially connected end to form a closed circulation channel.
8. A cleaning assembly for a mop bucket according to claim 5, wherein the swivel joint (13) is provided with a hollow drum (21), the pumping mechanism (12) is slidably connected with the drum (21), the drum (21) extends into the pumping mechanism (12), the track region (18) is arranged at the outer periphery of the pumping mechanism (12), and the sliding block (19) is arranged on the drum (21).
9. A cleaning assembly for a mop bucket according to any one of claims 1 to 8, further comprising a cleaning roller (22) rotatably disposed in the cleaning cavity (11), wherein a roller bracket (23) is disposed in the cleaning cavity (11), and an elastic restoring member is disposed between the cleaning roller (22) and the roller bracket (23).
10. The cleaning assembly for a mop bucket according to any one of claims 1 to 8, wherein the rotary joint (13) is further provided with a plurality of spraying openings (24), and the plurality of spraying openings (24) are all communicated with the water outlet of the water pumping mechanism (12).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202121811041.0U CN216090367U (en) | 2021-08-04 | 2021-08-04 | Cleaning assembly for mop bucket |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202121811041.0U CN216090367U (en) | 2021-08-04 | 2021-08-04 | Cleaning assembly for mop bucket |
Publications (1)
Publication Number | Publication Date |
---|---|
CN216090367U true CN216090367U (en) | 2022-03-22 |
Family
ID=80724494
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202121811041.0U Active CN216090367U (en) | 2021-08-04 | 2021-08-04 | Cleaning assembly for mop bucket |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN216090367U (en) |
-
2021
- 2021-08-04 CN CN202121811041.0U patent/CN216090367U/en active Active
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN107049189B (en) | Water-saving mop bucket | |
CN108852212B (en) | Water-saving mop bucket | |
CN111214190A (en) | Washing type dirt-removing separating electric mop cleaning tool | |
CN111248823A (en) | Dirt-cleaning separating electric mop cleaning tool | |
CN112493953A (en) | Cleaning tool with spin dryer tube | |
CN108652541B (en) | Mop cleaning barrel | |
CN113545722A (en) | Cleaning assembly for mop bucket | |
CN216090367U (en) | Cleaning assembly for mop bucket | |
CN215279040U (en) | Cleaning device for petrochemical detection equipment | |
CN215457773U (en) | Rotary mop bucket with centrifugal lifting mechanism | |
CN213075556U (en) | Rotary mop cleaning barrel | |
CN101725013A (en) | Fully automatic clothes and shoe washing machine | |
CN211933945U (en) | Washing type dirt-removing separating electric mop cleaning tool | |
CN108852204B (en) | Improved mop bucket | |
CN214128471U (en) | Piston type water spraying mop bucket | |
CN218128439U (en) | Mop cleaning barrel | |
CN211862729U (en) | Mop cleaning device | |
CN217610943U (en) | Rotary mop set | |
CN210631176U (en) | Lifting type rotary cleaning and dewatering dual-purpose mop bucket | |
CN211559987U (en) | Mop cleaning tool | |
CN211484438U (en) | Cleaning tool | |
CN212591984U (en) | Cleaning tool with spin dryer tube | |
CN212630679U (en) | Dirt-cleaning separating electric mop cleaning tool | |
CN112493950A (en) | Mop cleaning device | |
CN211299837U (en) | Cleaning tool |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant |