CN216497897U - Swimming pool purifies uses hair collector - Google Patents
Swimming pool purifies uses hair collector Download PDFInfo
- Publication number
- CN216497897U CN216497897U CN202122088261.1U CN202122088261U CN216497897U CN 216497897 U CN216497897 U CN 216497897U CN 202122088261 U CN202122088261 U CN 202122088261U CN 216497897 U CN216497897 U CN 216497897U
- Authority
- CN
- China
- Prior art keywords
- cylinder
- separating
- seat
- collecting cylinder
- separation
- 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
- Filtration Of Liquid (AREA)
Abstract
The utility model discloses a hair collector for swimming pool purification, which comprises a closing mechanism for preventing water from overflowing during swimming pool purification, an adjusting mechanism for adjusting the height of the whole device, a separating mechanism for filtering water in a swimming pool and a supporting mechanism for supporting the separating mechanism during separating and filtering. The separating motor is utilized to drive the separating seat to rotate at the bottom side of the collecting cylinder, the transmission rod at the bottom of the separating cylinder is matched with the separating seat, so that the separating cylinder is driven to rotate at a high speed at the inner side of the collecting cylinder, hairs and impurities in water can be quickly filtered, the support frame and the support wheel at the inner side of the support frame are utilized to support the upper side of the separating cylinder in the collecting cylinder, and the stability of the separating cylinder in the high-speed rotating process is ensured.
Description
Technical Field
The utility model relates to the field of swimming pool water body purification, in particular to a hair collector for swimming pool purification.
Background
Swimming is a skill that people float upwards under the buoyancy of water, and the body of people regularly moves in the water through limbs by virtue of the buoyancy, so that the swimming pool is a special place for swimming of people, and people can move or play games in the swimming pool. Most swimming pools are built on the ground and can be divided into general swimming pools and warm swimming pools according to water temperature. Is divided into an indoor part and an outdoor part; the swimming pool needs to clean and filter water inside the swimming pool regularly, so that the cleanness of the water in the whole swimming pool is ensured; when the swimming pool water purifies, need carry out preliminary filtration to the hair and the rubbish of aquatic and collect, current collector is generally through rivers through filter assembly removal aquatic hair and the rubbish that carries, and it is good to its effect of a small amount of rubbish and hair that this kind of filtration collection mode is obvious, but just has the water of more rubbish and hair to great swimming pool, can take place to block up when its filtration is collected, then makes the filtration collection efficiency of water reduce.
SUMMERY OF THE UTILITY MODEL
The present invention has been made to solve the above problems, and an object of the present invention is to provide a hair collector for swimming pool cleaning.
The utility model realizes the purpose through the following technical scheme:
a hair collector for swimming pool purification comprises a sealing mechanism for preventing water from overflowing during swimming pool purification, an adjusting mechanism for adjusting the height of the whole device, a separating mechanism for filtering water in a swimming pool, and a supporting mechanism for supporting the separating mechanism during separation and filtration, wherein the sealing mechanism is positioned above the adjusting mechanism; the separating mechanism comprises a separating motor, a separating seat, a separating cylinder and a transmission rod, wherein the upper end of the separating cylinder is positioned on the inner side of the supporting frame, the transmission rod is installed on the central position of the bottom of the separating cylinder, the separating motor is installed on the central position of the bottom of the collecting cylinder, the separating seat is installed on the central position of the bottom of the inner side of the collecting cylinder, a spline is arranged at the lower end of the transmission rod, and a key groove which is the same as the spline at the lower end of the separating seat is formed in the top of the separating seat.
Preferably: the sealing mechanism comprises a sealing cover, light-transmitting glass, a locking rod and a locking seat, the sealing cover is arranged at the top of the collecting cylinder, the light-transmitting glass is arranged at the top of the sealing cover, the lower end of the locking rod is arranged at the edge position of the upper end of the collecting cylinder, and the locking seat is arranged at the upper end of the locking rod.
According to the arrangement, the top of the collecting cylinder is sealed by the sealing cover, and the inside of the collecting cylinder can be observed by the transparent glass.
Preferably: the edge position of the lower end of the sealing cover is provided with a limiting groove, the light-transmitting glass is connected with the sealing cover through a bolt, the locking rod is rotatably connected with the collecting cylinder, and the locking seat is connected with the locking rod through threads.
According to the arrangement, the locking rod is used for turning upwards, and the locking seat is used for downwards rotating at the locking rod to press the sealing cover at the top of the collecting cylinder.
Preferably: the inlet tube with the surge drum passes through welded connection, the outlet pipe with the surge drum passes through welded connection, the support frame with the surge drum passes through bolted connection, the supporting wheel with the support frame rotates to be connected.
According to the arrangement, the water in the swimming pool is guided into the collecting cylinder by the water inlet pipe, the filtered water is guided out of the collecting cylinder by the water outlet pipe, and the upper side of the separation cylinder is supported by the support frame and the support wheels.
Preferably: an emptying pipe is welded at one side of the lower end of the collecting barrel, and an annular groove is formed in the contact position of the support frame and the upper end of the separation barrel.
According to the arrangement, the emptying pipe on one side of the lower end of the collecting cylinder is used for emptying residual water in the collecting cylinder, and meanwhile, the annular groove in the top of the supporting frame is used for facilitating water to flow into the separating cylinder.
Preferably: adjustment mechanism includes base, regulation seat, ball valve, the ball valve is installed the empty pipe end portion of collecting vessel, the pedestal mounting is in the collecting vessel bottom is close to marginal position, it installs to adjust the seat the base downside.
So set up, utilize adjust the seat and be in the rotation of base below can make adjust the seat upper end follow the base inboard is unscrewed to conveniently adjust the height of whole collector.
Preferably: the ball valve with the emptying pipe of a collecting cylinder is connected through a bolt, the base is connected with the collecting cylinder through welding, and the adjusting seat is connected with the base through threads.
So set up, utilize the ball valve to control the residual water in the collecting vessel to discharge from emptying the pipe.
Preferably: the transmission rod is connected with the separation cylinder in a welding mode, the separation motor is connected with the collection cylinder through bolts, the separation seat is connected with the collection cylinder through a bearing, and a lifting rod is arranged on the inner side of the upper end of the separation cylinder.
According to the arrangement, the separation motor rotating part is used for driving the separation seat to rotate, and the spline at the lower end of the transmission rod is matched with the spline groove at the top of the separation seat, so that the separation cylinder is driven to rotate.
Preferably: the water inlet pipe, the water outlet pipe and the collecting cylinder are all made of stainless steel materials, and the outer sides of the water inlet pipe, the water outlet pipe and the collecting cylinder are all subjected to sand blasting treatment.
So set up, all carry out sand blasting through adopting stainless steel and its surface, can improve holistic corrosion resistance increase of service life.
Preferably: the pipe diameter of inlet tube will be greater than the pipe diameter of outlet pipe.
By the arrangement, the water level in the collecting cylinder is lower than the bottom side of the separation cylinder, so that the separation cylinder can rotate at high speed.
Compared with the prior art, the utility model has the following beneficial effects:
1. the separating motor is utilized to drive the separating seat to rotate at the bottom side of the collecting cylinder, and the transmission rod at the bottom of the separating cylinder is matched with the separating seat, so that the separating cylinder is driven to rotate at a high speed at the inner side of the collecting cylinder, and then hair and impurities in water can be quickly filtered;
2. utilize the support frame and its inboard supporting wheel to support the inside separation section of thick bamboo upside that breaks away from of collecting cylinder to guarantee to break away from a section of thick bamboo stability at high-speed rotation in-process.
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 creative efforts.
FIG. 1 is a schematic view of a hair collector for pool cleaning according to the present invention;
FIG. 2 is a cross-sectional view of a pool cleaning hair collector of the present invention;
FIG. 3 is a front view of a pool cleaning hair collector of the present invention;
FIG. 4 is a partial sectional view of a collection cartridge of a pool cleaning hair collector of the present invention;
FIG. 5 is a partial view of a separating mechanism of a hair collector for pool cleaning according to the present invention;
FIG. 6 is a partial sectional view of a support frame of a hair collector for pool cleaning according to the present invention;
FIG. 7 is a partial sectional view of a drive rod of a pool cleaning hair collector of the present invention;
FIG. 8 is a partial sectional view of a separate base of a pool cleaning hair collector of the present invention.
The reference numerals are explained below:
1. a separating mechanism; 2. a support mechanism; 3. a sealing mechanism; 4. an adjustment mechanism; 11. separating the motor; 12. a separating seat; 13. a disengagement drum; 14. a transmission rod; 21. a water inlet pipe; 22. a water outlet pipe; 23. a collection canister; 24. a support frame; 25. a support wheel; 31. a sealing cover; 32. a light-transmitting glass; 33. a locking lever; 34. a locking seat; 41. a base; 42. an adjusting seat; 43. a ball valve.
Detailed Description
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The utility model will be further described with reference to the accompanying drawings in which:
examples
As shown in fig. 1, 2, 3, 4, 5, 6, 7 and 8, a hair collector for swimming pool purification comprises a closing mechanism 3 for preventing water from overflowing during swimming pool purification, an adjusting mechanism 4 for adjusting the height of the whole device, wherein the closing mechanism 3 is positioned above the adjusting mechanism 4, a separating mechanism 1 for filtering water in the swimming pool and a supporting mechanism 2 for supporting the separating mechanism 1 during separating and filtering, the supporting mechanism 2 comprises a water inlet pipe 21, a water outlet pipe 22, a collecting cylinder 23, a supporting frame 24 and a supporting wheel 25, the water inlet pipe 21 is arranged at the upper end of one side of the collecting cylinder 23, the water outlet pipe 22 is arranged at the other side of the lower end of the collecting cylinder 23, the supporting frame 24 is arranged at the upper side in the collecting cylinder 23, and the supporting wheel 25 is arranged at the lower side of the supporting frame 24; the separating mechanism 1 comprises a separating motor 11, a separating seat 12, a separating cylinder 13 and a transmission rod 14, the upper end of the separating cylinder 13 is located on the inner side of a supporting frame 24, the transmission rod 14 is installed at the central position of the bottom of the separating cylinder 13, the separating motor 11 is installed at the central position of the bottom of a collecting cylinder 23, the separating seat 12 is installed at the central position of the bottom of the inner side of the collecting cylinder 23, a spline is arranged at the lower end of the transmission rod 14, and a key groove identical to the spline at the lower end of the separating seat 12 is formed in the top of the separating seat 12. The closing mechanism 3 comprises a sealing cover 31, light-transmitting glass 32, a locking rod 33 and a locking seat 34, the sealing cover 31 is arranged at the top of the collecting cylinder 23, the light-transmitting glass 32 is arranged at the top of the sealing cover 31, the lower end of the locking rod 33 is arranged at the edge of the upper end of the collecting cylinder 23, the locking seat 34 is arranged at the upper end of the locking rod 33, the sealing cover 31 is used for sealing the top of the collecting cylinder 23, and meanwhile, the light-transmitting glass 32 can be used for observing the inside of the collecting cylinder 23; a limiting groove is formed in the edge position of the lower end of the sealing cover 31, the transparent glass 32 is connected with the sealing cover 31 through a bolt, the locking rod 33 is rotatably connected with the collecting cylinder 23, the locking seat 34 is connected with the locking rod 33 through threads, the locking rod 33 is turned upwards, and meanwhile the locking seat 34 rotates downwards on the locking rod 33 to press the sealing cover 31 on the top of the collecting cylinder 23; the water inlet pipe 21 is connected with the collecting cylinder 23 in a welding way, the water outlet pipe 22 is connected with the collecting cylinder 23 in a welding way, the supporting frame 24 is connected with the collecting cylinder 23 through bolts, the supporting wheel 25 is connected with the supporting frame 24 in a rotating way, the water in the swimming pool is guided into the collecting cylinder 23 by the water inlet pipe 21, the filtered water is guided out of the collecting cylinder 23 by the water outlet pipe 22, and the upper side of the separation cylinder 13 is supported by the supporting frame 24 and the supporting wheel 25; an emptying pipe is welded at one side of the lower end of the collecting cylinder 23, an annular groove is formed in the contact position of the support frame 24 and the upper end of the separation cylinder 13, the emptying pipe at one side of the lower end of the collecting cylinder 23 is used for emptying residual water in the collecting cylinder, and meanwhile, the annular groove in the top of the support frame 24 is used for facilitating water to flow into the separation cylinder 13; the adjusting mechanism 4 comprises a base 41, an adjusting seat 42 and a ball valve 43, the ball valve 43 is installed at the end part of the emptying pipe of the collecting cylinder 23, the base 41 is installed at the bottom of the collecting cylinder 23 close to the edge position, the adjusting seat 42 is installed at the lower side of the base 41, and the upper end of the adjusting seat 42 can be screwed out from the inner side of the base 41 by utilizing the rotation of the adjusting seat 42 below the base 41, so that the height of the whole collector can be conveniently adjusted; the ball valve 43 is connected with an emptying pipe of the collecting cylinder 23 through a bolt, the base 41 is connected with the collecting cylinder 23 through welding, the adjusting seat 42 is connected with the base 41 through threads, and the ball valve 43 is used for controlling water remained in the collecting cylinder 23 to be discharged from the emptying pipe; the transmission rod 14 is connected with the separation cylinder 13 in a welding mode, the separation motor 11 is connected with the collection cylinder 23 through a bolt, the separation seat 12 is connected with the collection cylinder 23 through a bearing, a lifting rod is arranged on the inner side of the upper end of the separation cylinder 13, the separation seat 12 is driven to rotate by the rotating part of the separation motor 11, and the separation cylinder 13 is driven to rotate by the matching of a spline at the lower end of the transmission rod 14 and a spline groove at the top of the separation seat 12; the water inlet pipe 21, the water outlet pipe 22 and the collecting cylinder 23 are all made of stainless steel, sand blasting is carried out on the outer sides of the water inlet pipe, the water outlet pipe and the collecting cylinder, the stainless steel is adopted, sand blasting is carried out on the outer surfaces of the water inlet pipe, the water outlet pipe and the collecting cylinder, the overall corrosion resistance can be improved, and the service life can be prolonged; the diameter of the water inlet pipe 21 is larger than that of the water outlet pipe 22, so that the water level in the collecting cylinder 23 is lower than the bottom side of the separation cylinder 13, and the separation cylinder 13 can rotate at high speed.
The working principle is as follows: when in use, the collector is firstly placed at the pipeline of the swimming pool purification system, at this time, the upper end of the adjusting seat 42 is screwed out from the inside of the base 41 by rotating the three adjusting seats 42 at the bottom of the collecting cylinder 23, so as to adjust the height of the whole collector, thereby facilitating the connection between the water inlet pipe 21 and the water inlet pipe, and then connecting the water outlet pipe and the water outlet pipe 22, at this time, the water hair of the swimming pool can be collected and treated, when in collection, the rotating part of the separating motor 11 drives the separating seat 12 to rotate at the bottom side inside the collecting cylinder 23, the separating seat 12 and the transmission rod 14 are matched to drive the separating cylinder 13 to rotate at high speed, then the water entering the collecting cylinder 23 through the water inlet pipe 21 flows into the inner side of the separating cylinder 13, and the water at the inner side is thrown out to the inner wall at the lower side of the collecting cylinder 23 through the high-speed rotation of the separating cylinder 13, in the process, the centrifugal force generated by the high-speed rotation of the separation cylinder 13 is used for quickly filtering hair and garbage in water; the filtered water is collected at the bottom of the collecting cylinder 23, and the collected water flows out through the water outlet pipe 22; the detachment cylinder 13 inside the collection cylinder 23 can furthermore be observed through the transparent glass 32; when the separation barrel 13 needs to be taken out for cleaning the garbage and the hair, the six locking seats 34 on the upper side of the collecting barrel 23 are rotated to separate the compression of the sealing cover 31, so that the sealing cover 31 can be taken down from the top of the collecting barrel 23 by turning over the locking rods 33, and then the separation barrel 13 is lifted upwards by the lifting rods to clean the garbage and the hair on the inner side of the separation barrel.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. 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 (10)
1. The utility model provides a swimming pool purifies uses hair collector, includes when being used for the swimming pool to purify closing mechanism (3) that prevent water and spill over, is used for highly adjusting mechanism (4) adjusted to whole device, closing mechanism (3) are located adjustment mechanism (4) top, its characterized in that: the swimming pool water filter device is characterized by further comprising a separating mechanism (1) for filtering water in the swimming pool and a supporting mechanism (2) for supporting the separating mechanism (1) during separation and filtration, wherein the supporting mechanism (2) comprises a water inlet pipe (21), a water outlet pipe (22), a collecting cylinder (23), a supporting frame (24) and a supporting wheel (25), the water inlet pipe (21) is installed at the upper end of one side of the collecting cylinder (23), the water outlet pipe (22) is installed at the other side of the lower end of the collecting cylinder (23), the supporting frame (24) is installed at the upper side inside the collecting cylinder (23), and the supporting wheel (25) is arranged at the lower side of the supporting frame (24); separating mechanism (1) is including separating motor (11), separation seat (12), a section of thick bamboo (13), transfer line (14) break away from, it is located to break away from a section of thick bamboo (13) upper end support frame (24) are inboard, transfer line (14) are installed break away from a section of thick bamboo (13) bottom central point and put, separation motor (11) are installed collection section of thick bamboo (23) bottom central point puts, separation seat (12) are installed collection section of thick bamboo (23) inboard bottom central point puts, the spline has been seted up to transfer line (14) lower extreme, separation seat (12) top be provided with the same keyway of separation seat (12) lower extreme spline.
2. The pool cleaning hair collector as set forth in claim 1, wherein: closing mechanism (3) are including sealed lid (31), printing opacity glass (32), check lock lever (33), locking seat (34), sealed lid (31) set up collecting vessel (23) top, printing opacity glass (32) set up sealed lid (31) top, check lock lever (33) lower extreme sets up collecting vessel (23) upper end border position, install check lock lever (33) upper end.
3. The pool cleaning hair collector as set forth in claim 2, wherein: the edge position of the lower end of the sealing cover (31) is provided with a limiting groove, the light-transmitting glass (32) is connected with the sealing cover (31) through a bolt, the locking rod (33) is rotatably connected with the collecting cylinder (23), and the locking seat (34) is connected with the locking rod (33) through threads.
4. The pool cleaning hair collector as set forth in claim 1, wherein: the inlet tube (21) with the collection section of thick bamboo (23) are through welded connection, outlet pipe (22) with the collection section of thick bamboo (23) are through welded connection, support frame (24) with the collection section of thick bamboo (23) pass through bolted connection, supporting wheel (25) with support frame (24) rotate to be connected.
5. The pool cleaning hair collector as set forth in claim 1, wherein: an emptying pipe is welded at one side of the lower end of the collecting barrel (23), and an annular groove is formed in the contact position of the support frame (24) and the upper end of the separation barrel (13).
6. The pool cleaning hair collector as set forth in claim 5, wherein: adjustment mechanism (4) include base (41), adjust seat (42), ball valve (43) are installed the empty tube end portion of surge drum (23), base (41) are installed surge drum (23) bottom is close to marginal position, it installs to adjust seat (42) base (41) downside.
7. The pool cleaning hair collector as set forth in claim 6, wherein: the ball valve (43) is connected with an emptying pipe of the collecting cylinder (23) through a bolt, the base (41) is connected with the collecting cylinder (23) through welding, and the adjusting seat (42) is connected with the base (41) through threads.
8. The pool cleaning hair collector as set forth in claim 1, wherein: the transmission rod (14) is connected with the separation cylinder (13) in a welding mode, the separation motor (11) is connected with the collection cylinder (23) through bolts, the separation seat (12) is connected with the collection cylinder (23) through a bearing, and a lifting rod is arranged on the inner side of the upper end of the separation cylinder (13).
9. The pool cleaning hair collector as set forth in claim 1, wherein: the water inlet pipe (21), the water outlet pipe (22) and the collecting cylinder (23) are all made of stainless steel materials, and the outer sides of the water inlet pipe, the water outlet pipe and the collecting cylinder are all subjected to sand blasting treatment.
10. The pool cleaning hair collector as set forth in claim 1, wherein: the pipe diameter of the water inlet pipe (21) is larger than that of the water outlet pipe (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122088261.1U CN216497897U (en) | 2021-09-01 | 2021-09-01 | Swimming pool purifies uses hair collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122088261.1U CN216497897U (en) | 2021-09-01 | 2021-09-01 | Swimming pool purifies uses hair collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216497897U true CN216497897U (en) | 2022-05-13 |
Family
ID=81515534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122088261.1U Active CN216497897U (en) | 2021-09-01 | 2021-09-01 | Swimming pool purifies uses hair collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216497897U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116785871A (en) * | 2023-08-29 | 2023-09-22 | 询莱流体设备(太仓)有限公司 | Venturi scrubber |
-
2021
- 2021-09-01 CN CN202122088261.1U patent/CN216497897U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116785871A (en) * | 2023-08-29 | 2023-09-22 | 询莱流体设备(太仓)有限公司 | Venturi scrubber |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN216497897U (en) | Swimming pool purifies uses hair collector | |
| CN209317208U (en) | A kind of architectural engineering waste-water recovering treater | |
| CN212581667U (en) | Constructed wetland surface of water impurity cleaning device | |
| CN200948384Y (en) | Water filter | |
| CN208553315U (en) | A kind of sewage treatment equipment for separating liquid from solid | |
| CN208561938U (en) | A kind of heavy metal wastewater thereby controlling device | |
| CN2590639Y (en) | Automatic pollution removing water filtering device | |
| CN116831076A (en) | Soil pick-up island blowdown containment pond | |
| CN208275081U (en) | A kind of spin current surface water treatment filter | |
| CN215249988U (en) | Sewage treatment device for wine industry production and assembled in modularization mode | |
| CN210251407U (en) | Stainless steel water tank purifying device | |
| CN209243828U (en) | Skyscraper water feeding tank | |
| CN112726802A (en) | Dirt-removing anti-blocking drainage device | |
| CN111410340A (en) | Sewage treatment device | |
| CN217498807U (en) | Rotary water decanter | |
| CN216920640U (en) | Hydraulic engineering is with stifled cistern that prevents that has purification performance | |
| CN214019636U (en) | Municipal administration is sewage pretreatment device for water supply and drainage | |
| CN219440875U (en) | Sewage treatment equipment convenient to maintain | |
| CN218516167U (en) | Peripheral transmission mud scraper | |
| CN220353041U (en) | Filter equipment of prefabricated pump station of integration | |
| CN221061956U (en) | Water treatment purifier | |
| CN216155694U (en) | Membrane bioreactor device for treating organic wastewater | |
| CN114562016B (en) | Integrated sewage lifting pump station | |
| CN213834880U (en) | Continuous integrated sewage treatment device | |
| CN210302626U (en) | River course suspension type solar sewage treatment device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |