CN216305303U - Wall brick clamping structure - Google Patents
Wall brick clamping structure Download PDFInfo
- Publication number
- CN216305303U CN216305303U CN202122433856.6U CN202122433856U CN216305303U CN 216305303 U CN216305303 U CN 216305303U CN 202122433856 U CN202122433856 U CN 202122433856U CN 216305303 U CN216305303 U CN 216305303U
- Authority
- CN
- China
- Prior art keywords
- plate
- bottom plate
- clamping
- threaded rod
- 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
Images
Landscapes
- Finishing Walls (AREA)
Abstract
The utility model belongs to the technical field of constructional engineering, and particularly relates to a wall brick clamping structure which comprises a bottom plate and a clamping component, wherein the bottom plate is provided with a clamping groove; the top of the bottom plate is fixedly connected with a cylinder piece and a handle, and the bottom of the bottom plate is provided with a group of slots; the clamping component is arranged at the bottom of the bottom plate; the clamping component comprises an inserting block, a clamping plate and a fixing mechanism; the group of the insertion blocks are fixedly connected to the top of the clamping plate, inserted in the slot and in sliding fit with the inner side wall of the slot; the bottom of the clamping plate is fixedly connected with a group of gaskets, and the top of the clamping plate is contacted with the bottom of the bottom plate; the fixing mechanism is arranged in the bottom plate; the screens when carrying out the ceramic tile through the screens board and laying guarantee that the gap between every ceramic tile is even, and the screens board is connected with the bottom plate through fixed establishment, is provided with the handle on the bottom plate, makes things convenient for the staff to have an effect and takes out the screens board.
Description
Technical Field
The utility model relates to the technical field of constructional engineering, in particular to a wall brick clamping structure.
Background
Wall brick is a kind of ceramic tile, at the laying process of ceramic tile, in order to avoid the ceramic tile to appear bulging or fracture in the use in later stage, generally need leave the gap between brick and brick, the size in gap leans on artifical range estimation can produce the error, consequently need be with the help of the ceramic tile cross.
Among the prior art at present, when laying wall tile, often place a ceramic tile cross at the turning of ceramic tile and carry out the screens to laying at the ceramic tile, guarantee that the gap between the ceramic tile is even, but the cross inlays the inconvenient power of having an effect of people's hand after advancing the gap, leads to the cross to be difficult to get rid of, consequently, proposes a wall tile screens structure to above-mentioned problem.
SUMMERY OF THE UTILITY MODEL
In order to make up for the defects of the prior art and solve the problem that the existing cross is difficult to remove due to the fact that a person does not have any force after the cross is embedded into a gap, the utility model provides a wall brick clamping structure.
The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model relates to a wall brick clamping structure, which comprises a bottom plate and a clamping component; the top of the bottom plate is fixedly connected with a cylinder piece and a handle, and the bottom of the bottom plate is provided with a group of slots; the clamping component is arranged at the bottom of the bottom plate; the clamping component comprises an inserting block, a clamping plate and a fixing mechanism; the group of the insertion blocks are fixedly connected to the top of the clamping plate, inserted in the slot and in sliding fit with the inner side wall of the slot; the bottom of the clamping plate is fixedly connected with a group of gaskets, and the top of the clamping plate is contacted with the bottom of the bottom plate; the fixing mechanism is arranged in the bottom plate; screens when carrying out the ceramic tile through the screens board and laying, guarantee that the gap between every ceramic tile is even, the screens board passes through fixed establishment to be connected with the bottom plate, when the screens board is demolishd to needs, makes things convenient for the staff to have an effect through the handle that sets up on the bottom plate, and then takes out the screens board.
Preferably, a group of first threaded holes are formed in the top of the bottom plate; the first threaded hole is communicated with the inside of the slot; a second threaded hole is formed in the top of the inserting block; the first threaded hole and the second threaded hole are positioned on the same axis, and the diameters of the first threaded hole and the second threaded hole are consistent; the fixing mechanism comprises a first threaded rod; the first threaded rod is rotatably connected in the first threaded hole and is in threaded fit with the inner side wall of the first threaded hole, and the first threaded rod is in threaded fit with the inner side wall of the second threaded hole; rotate first threaded rod, fix the inserted block through first threaded rod, guarantee that the screens board is connected with the bottom plate firmly.
Preferably, a flattening mechanism is arranged inside the cylindrical part, and a third threaded hole is formed in the top of the cylindrical part; the flattening mechanism comprises a second threaded rod, a straight plate and a material pressing block; the second threaded rod is rotatably connected inside the third threaded hole and is in threaded fit with the inner side wall of the third threaded hole; the straight plate is connected to the inner side wall of the top end of the cylindrical part in a sliding mode through a spring, the straight plate is in sliding fit with the inner side wall of the cylindrical part, and the top of the straight plate is in contact with the bottom of the second threaded rod; the group of pressing blocks are fixedly connected to the bottom of the straight plate, and the outer side walls of the pressing blocks are in sliding fit with the inner side walls of the cylindrical parts; rotate the second threaded rod, second threaded rod tip extrusion straight board for the straight board slides, and at straight board slip in-process, the pressure material piece of straight board bottom contacts with ceramic tile corner gradually and flattens it, guarantees that the ceramic tile corner after laying keeps the parallel and level.
Preferably, the top of the bottom plate is provided with a group of through holes; the pressing block is in sliding fit with the inner side wall of the through hole, the bottom of the pressing block is fixedly connected with a rubber pad, and the side wall of the pressing block is fixedly connected with a stop block; protect the ceramic tile by arranging the rubber pad at the bottom of the material pressing block, avoid the material pressing block to be in direct contact with the surface of the ceramic tile, and reduce the damage to the ceramic tile.
Preferably, the inner side wall of the slot is fixedly connected with a rubber block; the clamping plate is in a cross shape; the gasket is made of rubber; when the insert block is embedded into the slot, the side wall of the insert block extrudes the rubber block, the rubber block is pressed to deform to clamp the insert block, and the first threaded rod is convenient to fix the insert block.
Preferably, the pull handles are provided with a pair; a rotating handle is fixedly connected to the end part of the second threaded rod; a first anti-slip groove is formed in the outer side wall of the rotating handle; the rotating handle is arranged at the end part of the second threaded rod, so that a worker can rotate the second threaded rod conveniently, the first anti-skidding groove arranged on the outer side wall of the rotating handle enables the worker to exert force conveniently, and the hand of the worker is not easy to skid.
The utility model has the advantages that:
1. when the clamping plate is used, the insertion block at the top of the clamping plate is embedded into the slot at the bottom of the bottom plate, so that the first threaded hole is aligned with the second threaded hole, the first threaded rod is rotated, and is in threaded fit with the inner side walls of the first threaded hole and the second threaded hole, the insertion block is fixed through the first threaded rod, the clamping plate is ensured to be stably connected with the bottom plate, the clamping plate is embedded at the corner of a ceramic tile, a gasket is pressed on the side wall of the ceramic tile, clamping during ceramic tile laying is carried out through the clamping plate, the uniform gap among each ceramic tile is ensured, when the clamping plate needs to be removed, a handle is arranged on the bottom plate, so that a worker can conveniently exert force, and the clamping plate is taken out from the gap;
2. according to the ceramic tile pressing device, when the ceramic tile is laid, the second threaded rod is rotated, the end part of the second threaded rod extrudes the straight plate, the straight plate stretching spring slides along the inner side wall of the cylindrical part, the pressing block moves downwards in the sliding process of the straight plate, the pressing block is flattened at the corner of the ceramic tile through the pressing block, the corner of the laid ceramic tile is kept parallel and level, the ceramic tile is protected by the rubber pad arranged at the bottom of the pressing block, the pressing block is prevented from being in direct contact with the surface of the ceramic tile, damage to the ceramic tile is reduced, the stop block arranged on the side wall of the pressing block plays a limiting role, and the pressing block is prevented from falling off.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a partial cross-sectional view of a first embodiment;
FIG. 2 is a side view of the first embodiment;
FIG. 3 is an enlarged view of a portion of FIG. 1 at A;
FIG. 4 is an enlarged view of a portion of FIG. 2 at B;
FIG. 5 is a schematic three-dimensional structure of a middle base plate, a handle, and a locking plate according to an embodiment;
FIG. 6 is a schematic three-dimensional structure of the cylinder and the mass in the first embodiment;
FIG. 7 is a schematic three-dimensional structure diagram of the bottom plate, the handle, and the locking plate according to the second embodiment.
In the figure: 1. a base plate; 11. a slot; 111. a rubber block; 12. a first threaded hole; 13. a through hole; 2. a clamping component; 21. inserting a block; 211. a second threaded hole; 22. a clamping plate; 221. a gasket; 23. a fixing mechanism; 231. a first threaded rod; 3. a cylindrical member; 31. a third threaded hole; 4. a handle; 41. a second anti-slip groove; 5. a flattening mechanism; 51. a second threaded rod; 511. rotating the handle; 512. a first anti-slip groove; 52. a straight plate; 53. pressing blocks; 531. a rubber pad; 532. and a stop block.
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.
Example one
Referring to fig. 1-6, a retaining structure for wall bricks comprises a bottom plate 1 and a retaining component 2; the top of the bottom plate 1 is fixedly connected with a cylinder piece 3 and a handle 4, and the bottom of the bottom plate 1 is provided with a group of slots 11; the clamping component 2 is arranged at the bottom of the bottom plate 1; the clamping assembly 2 comprises an inserting block 21, a clamping plate 22 and a fixing mechanism 23; the group of the insertion blocks 21 are fixedly connected to the top of the clamping plate 22, and the insertion blocks 21 are inserted into the slot 11 and are in sliding fit with the inner side wall of the slot 11; the bottom of the clamping plate 22 is fixedly connected with a group of gaskets 221, and the top of the clamping plate 22 is contacted with the bottom of the bottom plate 1; the fixing mechanism 23 is arranged inside the bottom plate 1; the during operation, when carrying out the use of screens board 22, in inserting the slot 11 of the 1 bottom of inserted block 21 embedding bottom plate at screens board 22 top, connect screens board 22 and bottom plate 1 through fixed establishment 23, inlay the corner at the ceramic tile with screens board 22, make the ceramic tile lateral wall press and cover gasket 221, and then carry out the screens when ceramic tile is laid through screens board 22, guarantee that the gap between every ceramic tile is even, because screens board 22 is connected with bottom plate 1 through fixed establishment 23, when the screens board 22 is demolishd to needs, handle 4 through setting up on the bottom plate 1 makes things convenient for the staff to send forth force, and then take out screens board 22.
A group of first threaded holes 12 are formed in the top of the bottom plate 1; the first threaded hole 12 is communicated with the inside of the slot 11; the top of the insert block 21 is provided with a second threaded hole 211; the first threaded hole 12 and the second threaded hole 211 are positioned on the same axis, and the diameters of the first threaded hole 12 and the second threaded hole 211 are consistent; the fixing mechanism 23 comprises a first threaded rod 231; the first threaded rod 231 is rotatably connected in the first threaded hole 12 and is in threaded fit with the inner side wall of the first threaded hole 12, and the first threaded rod 231 is in threaded fit with the inner side wall of the second threaded hole 211; during operation, when carrying out the fixed of screens board 22, imbed the inserted block 21 at screens board 22 top in the slot 11 for the second screw hole 211 at inserted block 21 top aims at first screw hole 12, rotates first threaded rod 231, first threaded rod 231 and the 12 inside wall screw-thread fit of first screw hole, and first threaded rod 231 and the 211 inside wall screw-thread fit of second screw hole, fix inserted block 21 through first threaded rod 231, guarantee that screens board 22 and bottom plate 1's be connected firmly.
A flattening mechanism 5 is arranged inside the cylindrical part 3, and a third threaded hole 31 is formed in the top of the cylindrical part 3; the flattening mechanism 5 comprises a second threaded rod 51, a straight plate 52 and a material pressing block 53; the second threaded rod 51 is rotatably connected inside the third threaded hole 31 and is in threaded fit with the inner side wall of the third threaded hole 31; the straight plate 52 is connected to the inner side wall of the top end of the cylindrical part 3 in a sliding mode through a spring, the straight plate 52 is in sliding fit with the inner side wall of the cylindrical part 3, and the top of the straight plate 52 is in contact with the bottom of the second threaded rod 51; the pressing blocks 53 are fixedly connected to the bottom of the straight plate 52, and the outer side walls of the pressing blocks 53 are in sliding fit with the inner side walls of the cylindrical part 3; the during operation, when carrying out the laying of ceramic tile, rotate second threaded rod 51, second threaded rod 51 and third screw hole 31 screw-thread fit, at second threaded rod 51 rotation in-process, straight board 52 of second threaded rod 51 tip extrusion for straight board 52 extension spring slides along the 3 inside walls of drum spare, at straight board 52 slip in-process, press the material piece 53 of straight board 52 bottom to contact gradually with ceramic tile corner and flatten it, guarantee that the ceramic tile corner after laying keeps the parallel and level.
The top of the bottom plate 1 is provided with a group of through holes 13; the pressing block 53 is in sliding fit with the inner side wall of the through hole 13, a rubber pad 531 is fixedly connected to the bottom of the pressing block 53, and a stop block 532 is fixedly connected to the side wall of the pressing block 53; during operation, along with the rotation of second threaded rod 51, press material piece 53 to pass through-hole 13 and flatten ceramic tile corner, protect the ceramic tile through set up rubber pad 531 bottom pressing material piece 53, avoid pressing material piece 53 and ceramic tile surface to carry out direct contact, reduce the damage to the ceramic tile, press the dog 532 that sets up on the material piece 53 lateral wall to play spacing effect, avoid pressing dropping of material piece 53.
A rubber block 111 is fixedly connected to the inner side wall of the slot 11; the clamping plate 22 is in a cross shape; the gasket 221 is made of rubber; during the work, when the inserted block 21 imbeds in the slot 11, inserted block 21 lateral wall extrusion rubber piece 111, rubber piece 111 pressurized deformation will be inserted block 21 chucking, and then be convenient for first threaded rod 231 fixes inserted block 21, and the material rubber of gasket 221, the atress takes place to warp, and when getting rid of screens board 22, gasket 221 can not cause to block screens board 22.
The handles 4 are provided with a pair; a rotating handle 511 is fixedly connected to the end part of the second threaded rod 51; a first anti-slip groove 512 is arranged on the outer side wall of the rotating handle 511; during operation, the rotating handle 511 is arranged at the end part of the second threaded rod 51, so that the second threaded rod 51 can be rotated by a worker conveniently, the first anti-slip groove 512 arranged on the outer side wall of the rotating handle 511 enables the worker to exert force more conveniently, and the hand of the worker is not easy to slip.
Example two
Referring to fig. 7, in a first comparative example, as another embodiment of the present invention, a second anti-slip groove 41 is formed on an outer side wall of the handle 4; during operation, through set up second antiskid groove 41 on handle 4 lateral wall, increased the frictional force between staff and handle 4 for the staff is easy to do all can more, and the staff is difficult for skidding, makes things convenient for the staff to take out screens board 22.
The working principle is that when the clamping plate 22 is used, the insertion block 21 at the top of the clamping plate 22 is embedded into the slot 11 at the bottom of the bottom plate 1, when the insertion block 21 is embedded into the slot 11, the rubber block 111 is extruded by the side wall of the insertion block 21, the rubber block 111 is pressed to deform to clamp the insertion block 21, at the moment, the first threaded hole 12 is aligned with the second threaded hole 211, the first threaded rod 231 is rotated, the first threaded rod 231 is in threaded fit with the inner side wall of the first threaded hole 12, and the first threaded rod 231 is in threaded fit with the inner side wall of the second threaded hole 211, so that the insertion block 21 is fixed by the first threaded rod 231, the clamping plate 22 is stably connected with the bottom plate 1, the clamping plate 22 is embedded at the corner of a tile, the spacer 221 is pressed on the side wall of the tile, clamping is carried out when the tile is laid by the clamping plate 22, the gaps between the tiles are uniform, when the clamping plate 22 needs to be removed, the pull handle 4 arranged on the bottom plate 1 is convenient for a worker to exert force, and then take out the screens board 22 from the gap, set up the second antiskid groove 41 on the outer sidewall of the handle 4, increase the friction between hand and handle 4, make the staff easy to exert oneself, the hand is difficult to skid, while carrying on the laying of the ceramic tile, rotate the second threaded rod 51, the second threaded rod 51 cooperates with third screwed hole 31 whorl, in the course of second threaded rod 51 rotates, the end of the second threaded rod 51 squeezes the straight board 52, make the straight board 52 stretch the spring and slide along the inside wall of the cylindrical member 3, in the course of straight board 52 sliding, the pressing block 53 of the bottom of the straight board 52 contacts with corner of the ceramic tile gradually and flattens it, guarantee the ceramic tile corner after laying keeps the parallel and level, protect the ceramic tile through setting up the rubber pad 531 in pressing block 53 bottom, avoid pressing block 53 and surface of the ceramic tile to contact directly, reduce the damage to the ceramic tile, the dog 532 set up on the sidewall of the pressing block 53 plays the spacing effect, avoid pressing the drop of material piece 53, make things convenient for the rotatory second threaded rod 51 of staff through set up rotation handle 511 at second threaded rod 51 tip, the first antiskid groove 512 that sets up on the rotation handle 511 lateral wall makes the staff be convenient for more to have an effect, and the hand is difficult for skidding.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed.
Claims (6)
1. The utility model provides a wall brick screens structure which characterized in that: comprises a bottom plate (1) and a clamping component (2); the top of the bottom plate (1) is fixedly connected with a cylindrical part (3) and a handle (4), and the bottom of the bottom plate (1) is provided with a group of slots (11); the clamping component (2) is arranged at the bottom of the bottom plate (1); the clamping component (2) comprises an inserting block (21), a clamping plate (22) and a fixing mechanism (23); the group of the insertion blocks (21) are fixedly connected to the top of the clamping plate (22), and the insertion blocks (21) are inserted into the slot (11) and are in sliding fit with the inner side wall of the slot (11); the bottom of the clamping plate (22) is fixedly connected with a group of gaskets (221), and the top of the clamping plate (22) is contacted with the bottom of the bottom plate (1); the fixing mechanism (23) is arranged inside the bottom plate (1).
2. A wall brick clamping structure according to claim 1, characterized in that: the top of the bottom plate (1) is provided with a group of first threaded holes (12); the first threaded hole (12) is communicated with the inside of the slot (11); the top of the insert block (21) is provided with a second threaded hole (211); the first threaded hole (12) and the second threaded hole (211) are positioned on the same axis, and the diameters of the first threaded hole (12) and the second threaded hole (211) are consistent; the fixing mechanism (23) comprises a first threaded rod (231); first threaded rod (231) rotate to be connected in first screw hole (12), with first screw hole (12) inside wall screw-thread fit, and first threaded rod (231) and second screw hole (211) inside wall screw-thread fit.
3. A wall brick clamping structure according to claim 2, characterized in that: a flattening mechanism (5) is arranged inside the cylindrical part (3), and a third threaded hole (31) is formed in the top of the cylindrical part (3); the flattening mechanism (5) comprises a second threaded rod (51), a straight plate (52) and a material pressing block (53); the second threaded rod (51) is rotatably connected inside the third threaded hole (31) and is in threaded fit with the inner side wall of the third threaded hole (31); the straight plate (52) is connected to the inner side wall of the top end of the cylinder (3) in a sliding mode through a spring, the straight plate (52) is in sliding fit with the inner side wall of the cylinder (3), and the top of the straight plate (52) is in contact with the bottom of the second threaded rod (51); and the pressing blocks (53) are fixedly connected to the bottom of the straight plate (52), and the outer side walls of the pressing blocks (53) are in sliding fit with the inner side walls of the cylindrical part (3).
4. A wall brick clamping structure according to claim 3, characterized in that: the top of the bottom plate (1) is provided with a group of through holes (13); the material pressing block (53) is in sliding fit with the inner side wall of the through hole (13), a rubber pad (531) is fixedly connected to the bottom of the material pressing block (53), and a stop block (532) is fixedly connected to the side wall of the material pressing block (53).
5. A wall brick screens structure of claim 4, characterized in that: a rubber block (111) is fixedly connected to the inner side wall of the slot (11); the clamping plate (22) is in a cross shape; the gasket (221) is made of rubber.
6. A wall brick screens structure of claim 5, characterized in that: the pair of handles (4) is arranged; a rotating handle (511) is fixedly connected to the end part of the second threaded rod (51); the outer side wall of the rotating handle (511) is provided with a first anti-slip groove (512).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202122433856.6U CN216305303U (en) | 2021-10-08 | 2021-10-08 | Wall brick clamping structure |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202122433856.6U CN216305303U (en) | 2021-10-08 | 2021-10-08 | Wall brick clamping structure |
Publications (1)
Publication Number | Publication Date |
---|---|
CN216305303U true CN216305303U (en) | 2022-04-15 |
Family
ID=81114345
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202122433856.6U Active CN216305303U (en) | 2021-10-08 | 2021-10-08 | Wall brick clamping structure |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN216305303U (en) |
-
2021
- 2021-10-08 CN CN202122433856.6U patent/CN216305303U/en active Active
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN210588926U (en) | Clamp for center coincidence precision of precision instrument | |
CN210530047U (en) | Ultra-thin stone material aluminium honeycomb composite sheet | |
CN216305303U (en) | Wall brick clamping structure | |
CN210715493U (en) | Ceramic heat-resistant copper composite bolt and nut | |
CN106704331A (en) | Connecting piece and connection clamping and locking structure | |
CN101403424B (en) | Wire rope clip | |
RU100547U1 (en) | HYDRAULIC KEY DIE | |
CN211957552U (en) | Relay base convenient to installation relay | |
CN212230707U (en) | Portable data connection converter for artificial intelligence computer | |
CN103225483A (en) | On/off unidirectional self-locking rolling body pincer teeth of oil pipe column | |
CN211165437U (en) | Wear-resistant rubber convenient to replace for compression roller | |
CN211421499U (en) | Construction convenience's building curtain connection structure | |
CN211709639U (en) | Concrete mould grout stopping component | |
CN205915074U (en) | Circle pipe clip and machining center digit control machine tool | |
CN214036454U (en) | Screw capable of preventing deviation | |
CN112111900A (en) | Clothes hair scraper | |
CN211366583U (en) | Anti-slip textile cylinder for textile production | |
CN211975617U (en) | Diamond positioning pin | |
CN210636322U (en) | Cable anti-slip steel plate structure for large-dip-angle working surface | |
CN214069384U (en) | 10kV distribution live working fastener operating head | |
CN204748532U (en) | Hold up nail ware | |
CN218057994U (en) | Linear moving device of vacuum induction melting furnace | |
CN204804333U (en) | Template latch device for building | |
CN216067225U (en) | Packing gland fastening tool | |
CN204604674U (en) | Cylindrical die fast replacing structure |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant |