CN210375298U - Balance adjusting device for liquid level meter - Google Patents
Balance adjusting device for liquid level meter Download PDFInfo
- Publication number
- CN210375298U CN210375298U CN201921722475.6U CN201921722475U CN210375298U CN 210375298 U CN210375298 U CN 210375298U CN 201921722475 U CN201921722475 U CN 201921722475U CN 210375298 U CN210375298 U CN 210375298U
- Authority
- CN
- China
- Prior art keywords
- balance
- liquid level
- plate
- mounting
- rod
- 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
Abstract
The utility model discloses a balance adjusting device for a liquid level meter, which comprises a liquid level meter, a mounting device and a balance adjusting mechanism, wherein the mounting device is used for stably mounting the whole device and a detected device, the stability of the device is increased, the balance of the device can be perfectly monitored by mounting a balance compass, the balance of the whole device can be adjusted by the balance compass, the device can be reset by mounting a reset spring and can be used for a plurality of times, the flexibility of the device is improved, the position of a balance plate can be controlled by lifting the telescopic rod by mounting the telescopic rod, thereby the effect of adjusting the balance is achieved, the balance angle of the whole device is adjusted by lifting the balance plate, the stability of the device during balance adjustment is increased, the adjustability is increased by mounting the adjusting strip, the weight of the whole device is increased by placing the weight in the inner cavity of the weight placing box, and the adjustment accuracy of the balance compass is improved.
Description
Technical Field
The utility model relates to a level gauge technical field specifically is a balance adjustment device for level gauge.
Background
The liquid level meter is an instrument for measuring the liquid level of a solution, comprises a floater, and is converted into a signal to be transmitted to a display by utilizing the ascending and descending of the floater along with the change of the liquid level, so that the liquid level information is displayed to an operator more intuitively.
Most of the liquid level meters on the present world can not carry out balance adjustment, and have the problems of poor stability, insufficient flexibility and low accuracy.
In order to solve the above problems, a balance adjustment device for a liquid level meter is proposed to improve balance adjustment performance, stability, flexibility and accuracy of the balance adjustment device.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a balance adjustment device for level gauge has improved balance adjustment nature, stability, flexibility and accuracy, has solved the not enough problem among the prior art.
In order to achieve the above object, the utility model provides a following technical scheme: a balance adjusting device for a liquid level meter comprises a liquid level meter, a mounting device and a balance adjusting mechanism, wherein the liquid level meter is movably connected with the mounting device, the mounting device is movably connected with the balance adjusting mechanism, the liquid level meter comprises a liquid level bottom plate, a liquid level cylinder, a liquid level observation plate, a low-level alarm, a turnover plate cylinder, a shell clamping plate and a top cover, the liquid level cylinder is mounted at the upper end of the liquid level bottom plate, the liquid level observation plate is mounted on the front surface of the liquid level cylinder, the low-level alarm is mounted at the lower end edge of the liquid level cylinder, the turnover plate cylinder is mounted at the right end of the liquid level cylinder, the shell clamping plate is mounted at the upper end of the liquid level cylinder, the top cover is mounted at the upper end of the shell clamping plate, the mounting device is mounted at the left end of the liquid level cylinder, the mounting device comprises a mounting clamping rod, a connecting buckle, the other end of the connecting buckle is provided with a first connecting block piece, the left side of the lower end of the liquid level cylinder is provided with a water inlet channel, the other end of the water inlet channel is provided with a second connecting block piece, the second connecting block piece is fixedly connected with the water inlet channel through a connecting clamp key, the outer cavity of the liquid level cylinder is provided with a balance adjusting mechanism, the balance adjusting mechanism comprises a first mounting plate, a first series connecting rod, a second mounting plate, a second series connecting rod, an installation series shaft, a placing plate, a hollow cavity, a main adjusting device and an adjusting strip, the lower end of the first mounting plate is provided with the first series connecting rod, the lower end of the first series connecting rod is provided with the second mounting plate, the lower end of the second series connecting rod is provided with the installation series connecting shaft, the lower end of the installation series connecting shaft is provided with the placing plate, the lower end of the placing plate is provided with the hollow cavity, and, the inner cavity of the lower end of the main adjusting device is provided with an adjusting strip.
Further, the turnover plate cylinder comprises a cylinder body, a lower sealing cover, a high-level alarm, an upper mounting block, a top sealing cover and a lower sealing inner block, the lower sealing cover is mounted at the lower end of the cylinder body, the high-level alarm is mounted at the upper end of the cylinder body, the upper mounting block is mounted at the top end of the cylinder body, the top sealing cover is mounted at the upper end of the upper mounting block, and the lower sealing inner block is mounted at the lower end of the cylinder body.
Further, the main adjusting device comprises a third mounting plate, a third serial connecting rod, a balance compass, a fourth mounting plate, a fourth serial connecting rod, a telescopic rod, a balance plate and a fine adjusting device, the third serial connecting rod is mounted at the lower end of the third mounting plate, the balance compass is mounted in an inner cavity of the lower end of the third serial connecting rod, the fourth mounting plate is mounted at the lower end of the balance compass, the fourth serial connecting rod is mounted at the lower end of the fourth mounting plate, the telescopic rod is mounted at the lower end of the fourth serial connecting rod, the balance plate is mounted at the lower end of the telescopic rod, and the fine adjusting device is mounted at the upper end of the balance.
Further, little adjusting device includes upper mounting panel, reset spring, first boss and adjusting floor, and reset spring is installed to the lower extreme of upper mounting panel, and first boss is installed to reset spring's lower extreme, and adjusting floor is installed to the lower extreme of first boss.
Further, the adjustment strip is including adjusting fixed block, first spiral adjustment axle, the shaft coupling, place the base block, second spiral adjustment axle, rotatory adjustment block and heavy object place the box, adjust the lower extreme of fixed block and install first spiral adjustment axle, the shaft coupling is installed to the outer lane of first spiral adjustment axle, the lower extreme of first spiral adjustment axle is installed and is placed the base block, the lower extreme of placing the base block is installed and is placed second spiral adjustment axle, rotatory adjustment block is installed to the outer lane of second spiral adjustment axle, the lower extreme of second spiral adjustment axle is installed the heavy object and is placed the box.
Furthermore, the first connecting block piece and the second connecting block piece are both made of synthetic rubber.
Compared with the prior art, the beneficial effects of the utility model are as follows:
1. the utility model provides a balance adjustment device for level gauge, including the level gauge, installation device and balance adjustment mechanism, installation through installation device, make the integrated device and the device stable installation that is detected, the stability of device has been increased, installation through balanced compass, the balancing of monitoring device that can be perfect, the balancing of integrated device can be adjusted through balanced compass, installation through reset spring, adjusting device's stability in detection has been guaranteed, can reset, use many times, improve the flexibility of device, installation through the telescopic link, the position of balance plate is controlled in the lift of accessible telescopic link, thereby play the effect of adjustment balancing.
2. The utility model provides a balance adjustment device for level gauge through the lift of balance plate to the balance angle of adjustment integrated device, stability when increasing the balance adjustment of device has increased the controllability of device through the installation of adjusting strip, places the box inner chamber at the heavy object and places the heavy object and reach the weight that increases integrated device, increases the adjustment accuracy of balanced compass.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural view of the liquid level gauge and the mounting device of the present invention;
fig. 3 is a schematic structural view of the balance adjustment mechanism of the present invention;
fig. 4 is a schematic view of the structure of the adjusting strip of the present invention.
In the figure: 1. a liquid level meter; 11. a liquid level floor; 12. a liquid level barrel; 13. a liquid level observation plate; 14. a low-level alarm; 15. a plate overturning cylinder; 151. a barrel; 152. a lower sealing cover; 153. a high alarm; 154. an upper mounting block; 155. a top sealing cover; 156. a lower sealing inner block; 16. a housing snap-gauge; 17. a top cover; 2. a mounting device; 21. installing a clamping rod; 22. connecting a buckle; 23. a first connecting block; 24. a water inlet channel; 25. a second connecting block; 26. connecting a card key; 3. a balance adjustment mechanism; 31. a first mounting plate; 32. a first tandem link; 33. a second mounting plate; 34. a second tandem link; 35. installing a tandem shaft; 36. placing the plate; 37. a hollow cavity; 38. a main adjustment device; 381. a third mounting plate; 382. a third tandem link; 383. a balance compass; 384. a fourth mounting plate; 385. a fourth tandem link; 386. a telescopic rod; 387. a balance plate; 388. a fine adjustment device; 3881. an upper mounting plate; 3882. a return spring; 3883. a first reinforcing block; 3884. adjusting the bottom plate; 39. adjusting strips; 391. adjusting the fixed block; 392. a first helical adjustment shaft; 393. a coupling; 394. placing a base block; 395. a second helical adjustment shaft; 396. rotating the adjusting block; 397. a weight placing box.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, a balance adjusting device for a liquid level meter comprises a liquid level meter 1, a mounting device 2 and a balance adjusting mechanism 3, wherein the liquid level meter 1 is movably connected with the mounting device 2, the mounting device 2 is movably connected with the balance adjusting mechanism 3, the liquid level meter 1 comprises a liquid level bottom plate 11, a liquid level cylinder 12, a liquid level observation plate 13, a low-level alarm 14, a flap cylinder 15, a shell clamping plate 16 and a top cover 17, the upper end of the liquid level bottom plate 11 is provided with the liquid level cylinder 12, the front surface of the liquid level cylinder 12 is provided with the liquid level observation plate 13, the lower end edge of the liquid level cylinder 12 is provided with the low-level alarm 14, the right end of the liquid level cylinder 12 is provided with the flap cylinder 15, the flap cylinder 15 comprises a cylinder body 151, a lower sealing cover 152, a high-level alarm 153, an upper mounting block 154, a top-lower sealing cover 155 and a lower sealing inner block 156, the top end of the cylinder body 151 is provided with an upper mounting block 154, the upper end of the upper mounting block 154 is provided with a top sealing cover 155, the lower end of the cylinder body 151 is provided with a lower sealing inner block 156, the upper end of the liquid level cylinder 12 is provided with an outer shell clamping plate 16, the upper end of the outer shell clamping plate 16 is provided with a top cover 17, the left end of the liquid level cylinder 12 is provided with a mounting device 2, the whole device and a detected device are stably mounted through the mounting of the mounting device 2, the stability of the device is improved, the mounting device 2 comprises a mounting clamping rod 21, a connecting buckle 22, a first connecting block piece 23, a water inlet channel 24, a second connecting block piece 25 and a connecting clamping key 26, the left end of the mounting clamping rod 21 is provided with the connecting buckle 22, the other end of the connecting buckle 22 is provided with the first connecting block piece 23, the left side of the lower end of the liquid level cylinder 12 is provided with the water inlet channel 24, the other end of the water inlet channel 24 is provided, the second connecting block member 25 is fixedly connected with the water inlet channel 24 through a connecting clamp key 26, the outer cavity of the liquid level barrel 12 is provided with a balance adjusting mechanism 3, the balance adjusting mechanism 3 comprises a first mounting plate 31, a first serial link 32, a second mounting plate 33, a second serial link 34, a mounting serial shaft 35, a placing plate 36, a hollow cavity 37, a main adjusting device 38 and an adjusting bar 39, the lower end of the first mounting plate 31 is provided with the first serial link 32, the lower end of the first serial link 32 is provided with the second mounting plate 33, the lower end of the second mounting plate 33 is provided with the second serial link 34, the lower end inner cavity of the second serial link 34 is provided with the mounting serial shaft 35, the lower end of the mounting serial shaft 35 is provided with the placing plate 36, the lower end of the placing plate 36 is provided with the hollow cavity 37, the lower end of the second serial link 34 is provided with the main adjusting device 38, and the main adjusting device 38 comprises a third mounting plate 381, The balance compass 383, the fourth mounting plate 384, the fourth serial link 385, the telescopic rod 386, the balance plate 387 and the fine adjustment device 388, the third serial link 382 is mounted at the lower end of the third mounting plate 381, the balance compass 383 is mounted in the inner cavity of the lower end of the third serial link 382, the balance of the whole device can be perfectly monitored by mounting the balance compass 383, the balance of the whole device can be adjusted through the balance compass 383, the fourth mounting plate 384 is mounted at the lower end of the balance compass 383, the fourth serial link 385 is mounted at the lower end of the fourth mounting plate 384, the telescopic rod 386 is mounted at the lower end of the fourth serial link 385, the position of the balance plate 387 can be controlled by lifting the telescopic rod 386 through mounting the telescopic rod 386, so that the balance adjusting effect is achieved, the balance plate 387 is mounted at the lower end of the telescopic rod 386, and the balance angle of the whole device is adjusted through lifting of the balance plate 387, the stability of the device during balance adjustment is improved, the fine adjustment device 388 is installed at the upper end of the balance plate 387, the fine adjustment device 388 comprises an upper mounting plate 3881, a return spring 3882, a first reinforcing block 3883 and an adjustment bottom plate 3884, the return spring 3882 is installed at the lower end of the upper mounting plate 3881, the detection stability of the adjustment device 388 is guaranteed through installation of the return spring 3882, the adjustment device can be reset and used for multiple times, the flexibility of the device is improved, the first reinforcing block 3883 is installed at the lower end of the return spring 3882, the adjustment bottom plate 3884 is installed at the lower end of the first reinforcing block 3883, the adjustment strip 39 is installed in the inner cavity of the lower end of the main adjustment device 38, the adjustment strip 39 comprises an adjustment fixing block 391, a first spiral adjustment shaft 392, a coupler 393, a base block 394, a second spiral adjustment shaft 395, a rotary adjustment block 396 and a weight placement box 397, the first spiral adjustment shaft 392 is installed at the lower end of, the shaft coupling 393 is installed to the outer lane of first spiral adjustment axle 392, the lower extreme of first spiral adjustment axle 392 is installed and is placed base block 394, the lower extreme of placing base block 394 is installed the second spiral adjustment axle 395, rotatory adjusting block 396 is installed to the outer lane of second spiral adjustment axle 395, the lower extreme of second spiral adjustment axle 395 is installed the heavy object and is placed box 397, through the installation of adjusting strip 39, the controllability of device has been increased, place the heavy object in the heavy object and reach the weight that increases the whole device at box 397 inner chamber, increase the adjustment accuracy of balance compass 387.
In summary, the following steps: the utility model provides a balance adjustment device for level gauge, including level gauge 1, installation device 2 and balance adjustment mechanism 3, through the installation of installation device 2, make the whole device and the device stable installation that is detected, the stability of device has been increased, through the installation of balance compass 383, the equilibrium of monitoring device that can be perfect, can adjust the equilibrium of whole device through balance compass 383, through the installation of reset spring 3882, the detection stability of adjusting device 388 is guaranteed, can reset, use many times, the flexibility of device is improved, through the installation of telescopic link 386, the position of balance plate 387 can be controlled through the lift of telescopic link 386, thereby play the effect of adjustment equilibrium, through the lift of balance plate 387, thereby adjust the balance angle of whole device, stability when increasing the balance adjustment of device, through the installation of adjustment strip 39, the adjustability of the device is improved, the weight of the whole device is increased by placing the weight in the inner cavity of the weight placing box 397, and the adjusting accuracy of the balance compass 387 is improved.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a balanced adjusting device for level gauge, includes level gauge (1), installation device (2) and balanced guiding mechanism (3), level gauge (1) and installation device (2) swing joint, installation device (2) and balanced guiding mechanism (3) swing joint, its characterized in that: the liquid level meter (1) comprises a liquid level bottom plate (11), a liquid level cylinder (12), a liquid level observation plate (13), a low-level alarm (14), a turnover plate cylinder (15), a shell clamping plate (16) and a top cover (17), wherein the liquid level cylinder (12) is installed at the upper end of the liquid level bottom plate (11), the liquid level observation plate (13) is installed on the front surface of the liquid level cylinder (12), the low-level alarm (14) is installed at the lower end edge of the liquid level cylinder (12), the turnover plate cylinder (15) is installed at the right end of the liquid level cylinder (12), the shell clamping plate (16) is installed at the upper end of the liquid level cylinder (12), the top cover (17) is installed at the upper end of the shell clamping plate (16), an installation device (2) is installed at the left end of the liquid level cylinder (12), the installation device (2) comprises an installation clamping rod (21), a connection buckle (22), a first connection block piece (23), the left end of the installation clamping rod (21) is provided with a connection buckle (22), the other end of the connection buckle (22) is provided with a first connecting block piece (23), the left side of the lower end of the liquid level barrel (12) is provided with a water inlet channel (24), the other end of the water inlet channel (24) is provided with a second connecting block piece (25), the second connecting block piece (25) is fixedly connected with the water inlet channel (24) through a connection clamping key (26), the outer cavity of the liquid level barrel (12) is provided with a balance adjusting mechanism (3), the balance adjusting mechanism (3) comprises a first mounting plate (31), a first series connecting rod (32), a second mounting plate (33), a second series connecting rod (34), an installation series shaft (35), a placing plate (36), a hollow cavity (37), a main adjusting device (38) and an adjusting strip (39), the lower end of the first mounting plate (31) is provided with the first series connecting rod (32), the lower end of the first serial link rod (32) is provided with a second mounting plate (33), the lower end of the second mounting plate (33) is provided with a second serial link rod (34), the lower end inner cavity of the second serial link rod (34) is provided with a mounting serial shaft (35), the lower end of the mounting serial shaft (35) is provided with a placing plate (36), the lower end of the placing plate (36) is provided with a hollow cavity (37), the lower end of the second serial link rod (34) is provided with a main adjusting device (38), and the lower end inner cavity of the main adjusting device (38) is provided with an adjusting strip (39).
2. The balance adjustment device for a liquid level meter according to claim 1, wherein: the turnover plate cylinder (15) comprises a cylinder body (151), a lower sealing cover (152), a high-position alarm (153), an upper mounting block (154), a top sealing cover (155) and a lower sealing inner block (156), the lower sealing cover (152) is mounted at the lower end of the cylinder body (151), the high-position alarm (153) is mounted at the upper end of the cylinder body (151), the upper mounting block (154) is mounted at the top end of the cylinder body (151), the top sealing cover (155) is mounted at the upper end of the upper mounting block (154), and the lower sealing inner block (156) is mounted at the lower end of the cylinder body (151).
3. The balance adjustment device for a liquid level meter according to claim 1, wherein: the main adjusting device (38) comprises a third mounting plate (381), a third serial rod (382), a balance compass (383), a fourth mounting plate (384), a fourth serial rod (385), a telescopic rod (386), a balance plate (387) and a fine adjusting device (388), the third serial rod (382) is installed at the lower end of the third mounting plate (381), the balance compass (383) is installed in an inner cavity of the lower end of the third serial rod (382), the fourth mounting plate (384) is installed at the lower end of the balance compass (383), the fourth serial rod (385) is installed at the lower end of the fourth mounting plate (384), the telescopic rod (386) is installed at the lower end of the fourth serial rod (385), the balance plate (387) is installed at the lower end of the telescopic rod (386), and the fine adjusting device (388) is installed at the upper end of the balance plate (387).
4. A balance adjustment device for a liquid level meter according to claim 3, wherein: micro-adjustment device (388) include upper mounting panel (3881), reset spring (3882), first boss (3883) and adjust bottom plate (3884), and reset spring (3882) are installed to the lower extreme of upper mounting panel (3881), and first boss (3883) are installed to the lower extreme of reset spring (3882), and adjust bottom plate (3884) are installed to the lower extreme of first boss (3883).
5. A balance adjustment device for a liquid level meter according to claim 3, wherein: adjusting strip (39) including adjusting fixed block (391), first spiral adjustment axle (392), shaft coupling (393), place base block (394), second spiral adjustment axle (395), box (397) is placed to rotatory adjustment block (396) and heavy object, adjust the lower extreme of fixed block (391) and install first spiral adjustment axle (392), shaft coupling (393) are installed to the outer lane of first spiral adjustment axle (392), the lower extreme of first spiral adjustment axle (392) is installed and is placed base block (394), the lower extreme of placing base block (394) is installed and is installed second spiral adjustment axle (395), rotatory adjustment block (396) are installed to the outer lane of second spiral adjustment axle (395), the lower extreme of second spiral adjustment axle (395) is installed the heavy object and is placed box (397).
6. The balance adjustment device for a liquid level meter according to claim 1, wherein: the first connecting block piece (23) and the second connecting block piece (25) are both members made of synthetic rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921722475.6U CN210375298U (en) | 2019-10-15 | 2019-10-15 | Balance adjusting device for liquid level meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921722475.6U CN210375298U (en) | 2019-10-15 | 2019-10-15 | Balance adjusting device for liquid level meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210375298U true CN210375298U (en) | 2020-04-21 |
Family
ID=70256285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921722475.6U Active CN210375298U (en) | 2019-10-15 | 2019-10-15 | Balance adjusting device for liquid level meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210375298U (en) |
-
2019
- 2019-10-15 CN CN201921722475.6U patent/CN210375298U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205841615U (en) | A kind of Pressure gauge dial plate produces equipment damping base | |
| CN205834982U (en) | A kind of Pressure gauge polisher damped noise reduction device | |
| CN210375298U (en) | Balance adjusting device for liquid level meter | |
| CN208223594U (en) | A kind of throw-in type liquid transmitter | |
| CN103575929B (en) | Multi-wind-directionwind-drift-sand-flowflow wind-drift-sand-flowflow flow real-time monitor | |
| CN207439400U (en) | A kind of detachable multifunction level meter for building | |
| CN202420582U (en) | Weighing type fuel oil consumption instrument | |
| CN103267509B (en) | Hanging box digital flow direction deflection angle indicator | |
| CN115793106A (en) | Weighing type rainfall detection device and method thereof | |
| CN210922931U (en) | Portable multifunctional anti-overflow U-shaped pressure gauge | |
| CN205403866U (en) | Multi -functional gas parameter measuring equipment | |
| CN208536969U (en) | The simple level gauging tool of sediment in a kind of troubled liquor | |
| CN204831963U (en) | Measurement device for slurry angle of slide and angle of repose | |
| CN209459722U (en) | A kind of acetylene black hydrochloric acid lotion amount test fixture | |
| CN208296940U (en) | A kind of liquid level measure of the change device | |
| CN205079736U (en) | Measurement device for road and bridge construction | |
| CN205944788U (en) | Low pressure reactive power compensation cabinet convenient to installation | |
| CN218156133U (en) | Surveyor's level monitoring devices of ground surface monitoring | |
| CN203231744U (en) | Digital flow direction deflection angle instrument for hanging box | |
| CN208026158U (en) | A kind of geological prospecting measuring apparatus | |
| CN220556339U (en) | Waterproof device of wireless remote-transmission valve-controlled water meter | |
| CN216050236U (en) | Dynamic grouping type vehicle weighing device | |
| CN218090371U (en) | Asphalt distribution amount testing device | |
| CN113280784B (en) | Flexible sensor | |
| CN219223718U (en) | Portable slope measuring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |