CN220670864U - Water conservancy gate leakproofness detection device - Google Patents
Water conservancy gate leakproofness detection device Download PDFInfo
- Publication number
- CN220670864U CN220670864U CN202322157490.3U CN202322157490U CN220670864U CN 220670864 U CN220670864 U CN 220670864U CN 202322157490 U CN202322157490 U CN 202322157490U CN 220670864 U CN220670864 U CN 220670864U
- Authority
- CN
- China
- Prior art keywords
- groups
- box body
- gate
- frame
- detection device
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 34
- 238000001514 detection method Methods 0.000 title claims abstract description 29
- 238000007789 sealing Methods 0.000 claims abstract description 20
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 94
- 229910052742 iron Inorganic materials 0.000 claims description 47
- 230000000694 effects Effects 0.000 abstract description 7
- 210000003437 trachea Anatomy 0.000 abstract 3
- 238000004088 simulation Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000005415 magnetization Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Examining Or Testing Airtightness (AREA)
Abstract
The utility model relates to the technical field of gate tightness detection, in particular to a water conservancy gate tightness detection device which is convenient for simulating the sealing effect of a gate under different water pressure states and improves the use convenience; the device comprises a box body and a frame, wherein an opening is formed in the right part of the top end of the box body, and the frame is arranged in the middle of the inner side wall of the box body; still include positioner, ram pump, trachea and manometer, the ram pump is installed on the box top, and the trachea intercommunication sets up on the ram pump output, and the trachea output communicates in the box of frame left side, and the manometer intercommunication sets up on the box lateral wall of frame left side, and positioner sets up on the box right part, and positioner is used for fixed the gate that will detect to positioner pastes gate and frame tightly.
Description
Technical Field
The utility model relates to the technical field of gate tightness detection, in particular to a water conservancy gate tightness detection device.
Background
The gate is used for closing and opening the control means of the water discharge channel. The utility model provides an important component of hydraulic building, can be used to intercept rivers, control water level, regulation flow, discharge silt and floater etc. in order to guarantee the leakproofness in the gate use, need detect its leakproofness after accomplishing the gate preparation, at present when detecting the gate leakproofness, in the patent of the utility model of bulletin number CN217560897U is authorized to prior art, the device includes testing platform and gate, testing platform's inside is provided with detection mechanism, the outside of gate is provided with coupling mechanism, detection mechanism includes the detection case of fixed connection in testing platform inside, the inside fixedly connected with inlet tube of detection case, the outside fixedly connected with solenoid valve of inlet tube, the inside fixedly connected with mounting panel of detection case, the bottom fixedly connected with guide bar of mounting panel, the outside sliding connection of guide bar has the kicking block, the top fixedly connected with water level sensor of kicking block.
But the device discovers in using, owing to utilize water to detect gate leakproofness, lead to the gate to detect after accomplishing the surface moist, need store or transport after its drying treatment again, increased the complexity to owing to gate self-body height has limited water level height, is inconvenient for carrying out the leakproofness and detects when receiving stronger pressure when the unrestrained impact of water to the gate, reduced the variety of detecting.
Disclosure of Invention
In order to solve the technical problems, the utility model provides the water conservancy gate tightness detection device which is convenient for simulating the sealing effect of the gate under different water pressure states and improves the use convenience.
The utility model relates to a water conservancy gate tightness detection device which comprises a box body and a frame, wherein an opening is formed in the right part of the top end of the box body, and the frame is arranged in the middle of the inner side wall of the box body; the device comprises a frame, a box body, a positioning device, a stamping pump, an air pipe and a pressure gauge, wherein the stamping pump is arranged at the top end of the box body, the air pipe is communicated with the output end of the stamping pump, the output end of the air pipe is communicated with the box body at the left side of the frame, the pressure gauge is communicated with the outer side wall of the box body at the left side of the frame, the positioning device is arranged at the right part of the box body and is used for fixing a gate to be detected, and the positioning device is used for tightly attaching the gate to the frame; the gate is placed on the positioning device through the opening in the right part of the box body, the positioning device is used for fixing the position of the gate, then the positioning device drives the gate to move leftwards, the edge of the left side wall of the gate is tightly sealed with the right side wall of the frame, then the stamping pump is started to stamp the box body on the left side of the frame through the air pipe, the sealing performance of the frame is detected by the pressure simulation water pressure state, the sealing effect of the gate in different water pressure states is conveniently simulated through adjusting the pressure in the box body, the stamping pump is closed after the pressure reaches a set value, the value of the pressure meter is observed, after a period of time, the value of the pressure meter has no obvious change, the gate sealing performance is good, if the value of the pressure meter is reduced, the gate sealing performance is poor, and the use convenience is improved.
Preferably, the positioning device comprises a driving device, a bracket, a plurality of groups of iron rods, L-shaped pieces, a plurality of groups of second iron rods, a plurality of groups of iron plates and a plurality of groups of magnets, wherein the bracket is arranged at the right part of the box body in a left-right sliding manner through the driving device, the plurality of groups of iron rods are all arranged at the lower part of the left end of the bracket, the L-shaped pieces are arranged on the outer side wall of the plurality of groups of iron rods, the plurality of groups of second iron rods are all arranged at the upper part of the left end of the bracket, the plurality of groups of iron plates are respectively arranged at the left end of the plurality of groups of second iron rods, and the plurality of groups of magnets are respectively arranged on the outer side wall of the plurality of groups of second iron rods; the bottom end of the gate is placed on the L-shaped piece, the L-shaped piece supports the gate, meanwhile, the right side wall of the gate is in contact with the iron plates, and at the moment, the magnets of the groups generate magnetization phenomena to the second iron bars of the groups and the magnets of the groups, so that the right side wall of the gate is adsorbed and fixed through the iron plates of the groups, and the convenience of positioning the gate by the positioning device is improved.
Preferably, the driving device comprises two groups of guide rails, a plurality of groups of guide posts, a plurality of groups of guide sleeve members and an air cylinder, wherein the two groups of guide rails are respectively arranged at the front and rear parts of the inner side wall of the box body, the bracket is arranged on the two groups of guide rails in a left-right sliding manner, the left ends of the plurality of groups of guide posts are all connected with the right end of the bracket, the right parts of the plurality of groups of guide posts are all arranged on the box body in a sliding manner, the plurality of groups of guide sleeve members are all arranged at the right end of the box body, the plurality of groups of guide posts respectively penetrate through the inside of the plurality of groups of guide sleeve members, the fixed end of the air cylinder is arranged at the right end of the box body, and the moving end of the air cylinder is connected with the right end of the bracket; the movable end of the air cylinder is controlled to stretch out and draw back, so that the air cylinder drives the bracket to move left and right, the bracket drives the gate to be tightly attached to the frame, and the moving stability of the bracket is improved by arranging two groups of guide rails and multiple groups of guide posts.
Preferably, the device also comprises a one-way valve which is communicated with the air pipe; by arranging the one-way valve, the pressure in the box body is prevented from flowing back through the air pipe.
Preferably, the device also comprises a pressure relief valve, wherein the pressure relief valve is communicated with the outer side wall of the box body at the left side of the frame; the pressure release valve is opened, so that the pressure in the box body can be conveniently discharged outwards.
Preferably, the device further comprises a sealing ring, wherein the sealing ring is arranged on the right side wall of the frame; by arranging the sealing ring, the sealing effect between the frame and the gate is improved.
Preferably, the device further comprises a timer, wherein the timer is arranged on the outer side wall of the box body; after the pressure value in the box body is set, a person counts time by starting a timer, so that the convenience of gate tightness detection is improved.
Compared with the prior art, the utility model has the beneficial effects that: the gate is placed on the positioning device through the opening in the right part of the box body, the positioning device is used for fixing the position of the gate, then the positioning device drives the gate to move leftwards, the edge of the left side wall of the gate is tightly sealed with the right side wall of the frame, then the stamping pump is started to stamp the box body on the left side of the frame through the air pipe, the sealing performance of the frame is detected by the pressure simulation water pressure state, the sealing effect of the gate in different water pressure states is conveniently simulated through adjusting the pressure in the box body, the stamping pump is closed after the pressure reaches a set value, the value of the pressure meter is observed, after a period of time, the value of the pressure meter has no obvious change, the gate sealing performance is good, if the value of the pressure meter is reduced, the gate sealing performance is poor, and the use convenience is improved.
Drawings
FIG. 1 is a schematic illustration of an axially measured structure of the present utility model;
FIG. 2 is a schematic diagram of an axial structure of a case connected with a pressure gauge or the like;
FIG. 3 is a schematic diagram of a partial structure of a second iron rod and iron plate;
FIG. 4 is a schematic diagram of an axial structure of the connection of the case with a timer or the like;
the reference numerals in the drawings: 1. a case; 2. a frame; 3. a stamping pump; 4. an air pipe; 5. a pressure gauge; 6. a bracket; 7. an iron rod; 8. an L-shaped member; 9. a second iron rod; 10. an iron plate; 11. a magnet; 12. a guide rail; 13. a guide post; 14. a guide sleeve; 15. a cylinder; 16. a one-way valve; 17. a pressure relief valve; 18. a seal ring; 19. a timer.
Detailed Description
In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. This utility model may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Example 1
As shown in fig. 1 to 4, the water conservancy gate tightness detection device comprises a box body 1 and a frame 2, wherein an opening is formed in the right part of the top end of the box body 1, and the frame 2 is installed in the middle of the inner side wall of the box body 1; the automatic detection device comprises a frame 2, and is characterized by further comprising a positioning device, a stamping pump 3, an air pipe 4 and a pressure gauge 5, wherein the stamping pump 3 is arranged at the top end of the frame 2, the air pipe 4 is communicated with the output end of the stamping pump 3, the output end of the air pipe 4 is communicated with the inside of the frame 2, the pressure gauge 5 is communicated with the outer side wall of the frame 2, the positioning device is arranged at the right part of the frame 1, the positioning device is used for fixing a gate to be detected, and the positioning device is used for tightly attaching the gate to the frame 2;
as shown in fig. 3, the positioning device comprises a driving device, a bracket 6, a plurality of groups of iron rods 7, an L-shaped piece 8, a plurality of groups of second iron rods 9, a plurality of groups of iron plates 10 and a plurality of groups of magnets 11, wherein the bracket 6 is arranged at the right part of the box body 1 in a left-right sliding manner through the driving device, the plurality of groups of iron rods 7 are all arranged at the lower part of the left end of the bracket 6, the L-shaped piece 8 is arranged on the outer side wall of the plurality of groups of iron rods 7, the plurality of groups of second iron rods 9 are all arranged at the upper part of the left end of the bracket 6, the plurality of groups of iron plates 10 are respectively arranged at the left ends of the plurality of groups of second iron rods 9, and the plurality of groups of magnets 11 are respectively arranged on the outer side wall of the plurality of groups of second iron rods 9;
in this embodiment, the gate is placed on the positioning device by the opening at the right part of the box body 1, the positioning device fixes the gate position, then the positioning device drives the gate to move leftwards, the edge of the left side wall of the gate is tightly adhered to the right side wall of the frame 2, then the stamping pump 3 is started, the stamping pump 3 stamps the box body 1 at the left side of the frame 2 through the air pipe 4, the tightness of the frame 2 is detected by the pressure simulation water pressure state, the sealing effect of the gate under different water pressure states is conveniently simulated by adjusting the pressure in the box body 1, the stamping pump 3 is closed after the pressure reaches a set value, the value of the pressure meter 5 is observed, after a period of time is waited, the value of the pressure meter 5 has no obvious change, the gate tightness is good, if the value of the pressure meter 5 is reduced, the gate tightness is poor, and the use convenience is improved.
Example 2
As shown in fig. 1 to 4, the water conservancy gate tightness detection device comprises a box body 1 and a frame 2, wherein an opening is formed in the right part of the top end of the box body 1, and the frame 2 is installed in the middle of the inner side wall of the box body 1; the automatic detection device comprises a frame 2, and is characterized by further comprising a positioning device, a stamping pump 3, an air pipe 4 and a pressure gauge 5, wherein the stamping pump 3 is arranged at the top end of the frame 2, the air pipe 4 is communicated with the output end of the stamping pump 3, the output end of the air pipe 4 is communicated with the inside of the frame 2, the pressure gauge 5 is communicated with the outer side wall of the frame 2, the positioning device is arranged at the right part of the frame 1, the positioning device is used for fixing a gate to be detected, and the positioning device is used for tightly attaching the gate to the frame 2;
as shown in fig. 3, the positioning device comprises a driving device, a bracket 6, a plurality of groups of iron rods 7, an L-shaped piece 8, a plurality of groups of second iron rods 9, a plurality of groups of iron plates 10 and a plurality of groups of magnets 11, wherein the bracket 6 is arranged at the right part of the box body 1 in a left-right sliding manner through the driving device, the plurality of groups of iron rods 7 are all arranged at the lower part of the left end of the bracket 6, the L-shaped piece 8 is arranged on the outer side wall of the plurality of groups of iron rods 7, the plurality of groups of second iron rods 9 are all arranged at the upper part of the left end of the bracket 6, the plurality of groups of iron plates 10 are respectively arranged at the left ends of the plurality of groups of second iron rods 9, and the plurality of groups of magnets 11 are respectively arranged on the outer side wall of the plurality of groups of second iron rods 9;
as shown in fig. 3, the driving device includes two sets of guide rails 12, multiple sets of guide posts 13, multiple sets of guide sleeve members 14 and an air cylinder 15, the two sets of guide rails 12 are respectively installed at front and rear parts of the inner side wall of the box body 1, the bracket 6 is installed on the two sets of guide rails 12 in a left-right sliding manner, the left ends of the multiple sets of guide posts 13 are all connected with the right end of the bracket 6, the right parts of the multiple sets of guide posts 13 are all installed on the box body 1 in a sliding manner, the multiple sets of guide sleeve members 14 are all installed at the right end of the box body 1, the multiple sets of guide posts 13 respectively penetrate through the inside of the multiple sets of guide sleeve members 14, the fixed end of the air cylinder 15 is installed at the right end of the box body 1, and the moving end of the air cylinder 15 is connected with the right end of the bracket 6;
as shown in fig. 1, the device also comprises a one-way valve 16, and the one-way valve 16 is arranged on the air pipe 4 in a communicating way;
as shown in fig. 1, the device also comprises a pressure relief valve 17, and the pressure relief valve 17 is communicated with the outer side wall of the box body 1 at the left side of the frame 2;
as shown in fig. 2, the sealing ring 18 is further included, and the sealing ring 18 is arranged on the right side wall of the frame 2;
as shown in fig. 4, the device also comprises a timer 19, wherein the timer 19 is arranged on the outer side wall of the box body 1;
in this embodiment, place L type 8 with the gate bottom on, make L type 8 support the gate, make gate right side wall and multiunit iron plate 10 contact simultaneously, because multiunit magnet 11 produces the magnetization phenomenon to multiunit second iron rod 9 and multiunit magnet 11 this moment, therefore adsorb fixed gate right side wall through multiunit iron plate 10, thereby improve positioner to the convenience of gate location, remove the end flexible length through control cylinder 15, make cylinder 15 drive support 6 and move about, thereby make support 6 drive gate and frame 2 paste tightly, through setting up two sets of guide rails 12 and multiunit guide post 13, improve the mobility stability of support 6.
The utility model relates to a water conservancy gate tightness detection device, which is characterized in that when the water conservancy gate tightness detection device works, a gate is placed on a positioning device from an opening at the right part of a box body 1, the positioning device fixes the position of the gate, then the positioning device drives the gate to move leftwards, the edge of the left side wall of the gate is tightly adhered to the right side wall of a frame 2, a stamping pump 3 is started, the stamping pump 3 stamps the box body 1 at the left side of the frame 2 through an air pipe 4, the tightness of the frame 2 is detected by a pressure simulation water pressure state, the sealing effect of the gate under different water pressure states is conveniently simulated by adjusting the pressure in the box body 1, the stamping pump 3 is closed after the pressure reaches a set value, the value of a pressure meter 5 is observed, after a period of time is waited, the value of the pressure meter 5 has no obvious change, the gate tightness is good, and if the value of the pressure meter 5 is reduced, the gate tightness is poor.
The stamping pump 3, the pressure gauge 5, the air cylinder 15 and the timer 19 of the water conservancy gate tightness detection device are purchased in the market, and a person skilled in the art only needs to install and operate according to the attached use instruction without creative labor of the person skilled in the art.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present utility model, and these modifications and variations should also be regarded as the scope of the utility model.
Claims (7)
1. The utility model provides a water conservancy gate tightness detection device, includes box (1) and frame (2), and box (1) top right part is provided with the opening, and frame (2) are installed at box (1) inside wall middle part; the automatic detection device is characterized by further comprising a positioning device, a stamping pump (3), an air pipe (4) and a pressure gauge (5), wherein the stamping pump (3) is arranged at the top end of the box body (1), the air pipe (4) is communicated with the output end of the stamping pump (3), the output end of the air pipe (4) is communicated with the box body (1) on the left side of the frame (2), the pressure gauge (5) is communicated with the outer side wall of the box body (1) on the left side of the frame (2), the positioning device is arranged on the right part of the box body (1), and is used for fixing a gate to be detected and tightly attaching the gate to the frame (2).
2. The water conservancy gate tightness detection device according to claim 1, wherein the positioning device comprises a driving device, a support (6), a plurality of groups of iron rods (7), L-shaped pieces (8), a plurality of groups of second iron rods (9), a plurality of groups of iron plates (10) and a plurality of groups of magnets (11), the support (6) is arranged on the right part of the box body (1) in a left-right sliding mode through the driving device, the plurality of groups of iron rods (7) are arranged on the lower portion of the left end of the support (6), the L-shaped pieces (8) are arranged on the outer side walls of the plurality of groups of iron rods (7), the plurality of groups of second iron rods (9) are arranged on the upper portion of the left end of the support (6), the plurality of groups of iron plates (10) are respectively arranged on the left ends of the plurality of groups of second iron rods (9), and the plurality of magnets (11) are respectively arranged on the outer side walls of the plurality of groups of second iron rods (9).
3. The water conservancy gate tightness detection device according to claim 2, wherein the driving device comprises two groups of guide rails (12), a plurality of groups of guide posts (13), a plurality of groups of guide sleeve members (14) and an air cylinder (15), the two groups of guide rails (12) are respectively arranged at the front and rear parts of the inner side wall of the box body (1), the bracket (6) is arranged on the two groups of guide rails (12) in a left-right sliding mode, the left ends of the groups of guide posts (13) are all connected with the right end of the bracket (6), the right parts of the groups of guide posts (13) are all arranged on the box body (1) in a sliding mode, the groups of guide sleeve members (14) are all arranged at the right end of the box body (1), the plurality of groups of guide posts (13) respectively penetrate through the inside of the groups of guide sleeve members (14), the fixed end of the air cylinder (15) is arranged at the right end of the box body (1), and the moving end of the air cylinder (15) is connected with the right end of the bracket (6).
4. A water conservancy gate tightness detection device as claimed in claim 1, further comprising a one-way valve (16), wherein the one-way valve (16) is arranged on the air pipe (4) in a communicating manner.
5. The water conservancy gate tightness detection device according to claim 1, further comprising a pressure relief valve (17), wherein the pressure relief valve (17) is communicated with the outer side wall of the box body (1) arranged on the left side of the frame (2).
6. A water conservancy gate tightness detection device as claimed in claim 1, further comprising a sealing ring (18), the sealing ring (18) being arranged on the right side wall of the frame (2).
7. A water conservancy gate tightness detection device according to claim 1, further comprising a timer (19), wherein the timer (19) is mounted on the outer side wall of the housing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322157490.3U CN220670864U (en) | 2023-08-09 | 2023-08-09 | Water conservancy gate leakproofness detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322157490.3U CN220670864U (en) | 2023-08-09 | 2023-08-09 | Water conservancy gate leakproofness detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220670864U true CN220670864U (en) | 2024-03-26 |
Family
ID=90344637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322157490.3U Active CN220670864U (en) | 2023-08-09 | 2023-08-09 | Water conservancy gate leakproofness detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220670864U (en) |
-
2023
- 2023-08-09 CN CN202322157490.3U patent/CN220670864U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106906619B (en) | Drainage control mechanism and washing machine | |
| CN105865589B (en) | Intelligent full flow point full-automatic water meter calibration equipment | |
| CN211626844U (en) | Air tightness rapid detection device of civil air defense door | |
| CN220670864U (en) | Water conservancy gate leakproofness detection device | |
| CN116593095B (en) | Petroleum pipeline valve tightness test equipment | |
| CN201173845Y (en) | Valve leakage test device | |
| CN208313532U (en) | Calibrating installation for the calibrating of building curtain wall testing machine | |
| CN208313531U (en) | Calibrating installation for the calibrating of glass curtain wall testing machine | |
| CN216284171U (en) | Detection sampling equipment for valve production | |
| CN217520670U (en) | Air tightness detection equipment for civil air defense door | |
| CN102660980B (en) | Plugging device for drainage port | |
| CN208313533U (en) | Building curtain wall testing machine calibrating installation | |
| CN216925965U (en) | Fixing mechanism for water detection of compressor liquid accumulator | |
| CN208505549U (en) | Build outer glass curtain wall testing machine calibrating installation | |
| CN114563132A (en) | Device for detecting leakproofness of building material waterproof pipe | |
| CN108709703B (en) | Calibrating device for building outer glass curtain wall testing machine | |
| CN219064776U (en) | Instrument waterproof test device | |
| CN208762248U (en) | A kind of antimicrobial device for river water in-situ immobilization | |
| CN215374371U (en) | Valve element performance detection device for valve production | |
| CN211951869U (en) | Pipe orifice plugging device for drain pipe | |
| CN212110247U (en) | Intelligent flow standard device | |
| CN217878204U (en) | Pressure vessel head sealing performance detection equipment | |
| CN221124104U (en) | Pump cover pressure testing tool | |
| CN218724597U (en) | Intelligent water meter sealing test device | |
| CN219798506U (en) | Flowmeter detection device with switchable detection interfaces |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |