CN211873903U - Cast-in-place box girder sprays curing means - Google Patents
Cast-in-place box girder sprays curing means Download PDFInfo
- Publication number
- CN211873903U CN211873903U CN202020132535.5U CN202020132535U CN211873903U CN 211873903 U CN211873903 U CN 211873903U CN 202020132535 U CN202020132535 U CN 202020132535U CN 211873903 U CN211873903 U CN 211873903U
- Authority
- CN
- China
- Prior art keywords
- beam body
- roof beam
- support frame
- cast
- shower
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
The utility model relates to a case roof beam maintenance technical field specifically discloses cast-in-place case roof beam sprays curing means, including the support frame with set up the shower on the support frame, be provided with a plurality of shower nozzles on the shower, the shower nozzle is located the top and both sides of the case roof beam body, is equipped with support piece between support frame and the roof beam body, fixedly connected with and the water tank of shower intercommunication on the roof beam body, and the one end of the roof beam body is provided with and is used for driving the actuating mechanism that the support frame walked along roof beam body length direction. The utility model discloses utilize drive arrangement drive support frame along the length direction walking of the roof beam body for the support frame drives the shower nozzle and sprays the maintenance to the roof beam body, has solved among the prior art case roof beam and has sprayed the problem that the maintenance device structure is complicated and the energy waste is serious.
Description
Technical Field
The utility model relates to a case roof beam maintenance technical field, concretely relates to cast-in-place case roof beam sprays curing means.
Background
After cast-in-place beam concrete is poured, the cast-in-place beam concrete needs to be maintained, manual maintenance is mostly adopted in the prior art, a large amount of water is used in the maintenance process, the maintenance time is long, the labor intensity is high when manual maintenance is caused, and meanwhile, the condition that maintenance is not timely or the maintenance frequency is not enough is easily generated in the manual maintenance process, so that the beam body concrete cannot be well maintained, the problems of beam body concrete surface cracking and the like are easily caused, and the quality of a beam body is finally influenced.
In order to solve the problems, various automatic spraying maintenance devices are also provided in the prior art, for example, the Chinese utility model patent with the publication number of CN 207828760 discloses a full-automatic spraying maintenance equipment device for a cast-in-place box girder of a high-speed railway, including laying a track on the box girder, be equipped with the walking car driven by a motor on the track, there are switch board and water tank on the walking car, there are batteries in the switch board, circulation relay and singlechip, the battery supplies power for the motor that drives the walking car, the positive and negative rotation of singlechip control motor, the contact of circulation relay is connected on the power supply line of motor, orbital both ends are provided with the baffle, all be provided with the limit switch who is connected with the singlechip on the baffle, still install the spraying support on the walking car, be fixed with the shower nozzle on the spraying support.
The above patent utilizes the motor to drive the water tank along the orbital motion on the case roof beam to make the water in the water tank be sprayed on the roof beam body through the shower nozzle, realize the maintenance of spraying to the roof beam body. Although the patent can realize automatic maintenance of the box girder, in the maintenance process, the structure is complex and the cost is high because a track needs to be laid on the girder body; simultaneously spraying the in-process, the water tank is always followed the dolly and is moved for the motor still need drive the water tank and move together when the drive dolly moves, causes the waste of motor kinetic energy, and track and dolly all can form certain sheltering from to spraying when the walking moreover, cause the roof beam body to receive the area reduction that sprays.
SUMMERY OF THE UTILITY MODEL
The utility model discloses it sprays curing means to anticipate to provide cast-in-place box roof beam to solve among the prior art box roof beam and spray curing means structure complicacy and the serious problem of energy waste.
In order to achieve the above purpose, the technical scheme of the utility model is as follows: cast-in-place case roof beam sprays curing means, including the support frame with set up the shower on the support frame, be provided with a plurality of shower nozzles on the shower, the shower nozzle is located the top and the both sides of the case roof beam body, is equipped with support piece between support frame and the roof beam body, fixedly connected with and the water tank of shower intercommunication on the roof beam body, and the one end of the roof beam body is provided with the actuating mechanism who is used for driving the support frame along roof beam body length direction walking.
The principle of the technical scheme is as follows: the driving mechanism is fixedly connected to one end of the beam body, the driving mechanism drives the support frame to travel along the length direction of the beam body in the spraying process, and the support piece provides support for the support frame to ensure that the support frame travels stably along the length direction of the beam body; the support frame will drive the shower and move together at the walking in-process for the shower is gone up the shower and is realized spraying the maintenance to the top and the both sides of roof beam body by the shower nozzle that sets up, and whole spraying in-process, the water tank is fixed connection on the roof beam body, and actuating mechanism need not to promote the water tank and follows the support frame and walk together.
The beneficial effects of this technical scheme lie in:
1. simple structure just sprays stably: compare and need lay the guide rail on the roof beam body among the prior art to utilize motor drive dolly and water tank to walk along the guide rail together, the structure is complicated and the cost is great. In this application, support piece provides the support to the support frame, under actuating mechanism's drive effect, only makes the support frame walk and realize spraying along the length direction walking of the roof beam body, simple structure and easily control for it is stable to spray.
2. Can effectively reduce energy waste: compare when spraying in prior art, the motor not only need the drive to spray the support and move ahead, still need drive dolly and water tank to move ahead together, causes the kinetic energy of motor extravagant serious. In this application, when the shower sprayed, only support frame and support piece moved on the roof beam body, and the water tank was fixed connection on the roof beam body to greatly reduce actuating mechanism and do useless work, be favorable to practicing thrift the cost.
Furthermore, the number of the supporting pieces is a plurality, and the supporting pieces are arranged along the direction perpendicular to the length direction of the beam body.
Set up support piece's quantity into a plurality of, a plurality of support piece set up along perpendicular to roof beam body length direction for the carriage receives a plurality of support piece's support in the walking, thereby guarantees the stable walking of support frame, prevents that the carriage from taking place to empty the scheduling problem in the walking.
Furthermore, the support piece comprises a support rod, connecting rods and rollers, the upper end of the support rod is fixedly connected with the support frame, the bottom end of the support rod is fixedly connected with the two connecting rods which form an angle with each other, and the rollers are fixedly connected with the bottom ends of the connecting rods and are in contact with the top surface of the beam body.
In this scheme, the quantity of connecting rod is two and two connecting rods all each other become the fixed connection of angle in the bottom of bracing piece for the connecting point of two gyro wheels in connecting rod bottom and two connecting rods forms triangular support to the support frame, thereby makes the support frame obtain stable support, avoids the problem that the support frame appears the shakiness and emptys in the motion process.
Further, actuating mechanism includes driving motor, action wheel, follows driving wheel, chain and connecting block, and driving motor fixed connection is in the one end of roof beam body, follows the other end of driving wheel rotation connection in the roof beam body, and action wheel fixed connection is on driving motor, and the chain rotates to be connected between action wheel and follow driving wheel, connecting block fixed connection on the chain and with support frame fixed connection.
When needs sprayed, driving motor drive action wheel rotates, and the action wheel drives the chain and rotates, and the connecting block moves under the chain drives for the connecting block drives the support frame and removes, thereby realizes that the support frame drives the shower and realizes the purpose that sprays to roof beam body top surface and both sides. Adopt the chain as the conveying connecting piece in this scheme, the long distance transmission can be realized better to the chain, and chain occupation space is less, and is less to the influence of shower spray beam body.
Further, the protective housing is fixedly connected between the driving wheel and the driven wheel, and the driving wheel, the driven wheel and the chain are all located in the protective housing.
Utilize the protective housing to protect the action wheel, follow driving wheel and chain, prevent that the shower from spraying the action wheel, follow driving wheel and chain when spraying the roof beam body to the life of extension chain guarantees the stable transmission of chain.
Furthermore, a pressure pump is connected between the water tank and the spray pipe.
Connect the force (forcing) pump between water tank and shower, carry out the pressure boost to the water that gets into in the shower to guarantee to have stable pressure in the shower, be favorable to the water in the water tank to enter into the shower fast, steadily, be favorable to guaranteeing that the shower sprays the maintenance steadily.
Further, the water tank is located the top surface middle part of roof beam body.
Compare in the both ends with the water tank setting at the roof beam body, transmission distance is far away when the water in the water tank is transmitted the other end of roof beam body, causes the water pump power consumption great. In this scheme, fix the water tank at roof beam body top surface middle part, be favorable to reducing the transmission distance of water in the water tank on the whole, reduce the power consumption of water pump and practice thrift the cost.
Furthermore, the height of the spray head is adjustable, and a switch is arranged on the spray head.
Compare in the shower nozzle apart from the height of roof beam body certain, pressure is fixed in the shower nozzle, and the scope size that the shower nozzle sprayed is fixed. In this scheme, the height-adjustable of shower nozzle to make and accept the water yield that sprays in the unit area can be adjusted, conveniently adjust the quantity of opening of shower nozzle and adjust the height of shower nozzle according to environmental condition, make the roof beam body obtain the right amount of water yield that sprays, under the prerequisite of guaranteeing the maintenance effect, the use of the minimize water yield effectively practices thrift the cost.
Furthermore, two auxiliary rods are fixedly connected to the supporting frame, the two auxiliary rods are respectively located on two sides of the beam body, and one end, close to the side wall of the beam body, of each auxiliary rod is fixedly connected with an auxiliary wheel in contact with the side wall of the beam body.
Compare in only setting up the gyro wheel in roof beam body top, in this scheme, set up the auxiliary wheel in the both sides of the roof beam body, the auxiliary wheel not only can provide the support to the support frame, can also lead to the walking of support frame simultaneously, reduces the condition that the support frame takes place the off normal when walking along roof beam body length direction.
Furthermore, the equal fixedly connected with inductor in both ends of the roof beam body, the inductor is located the motion route of support frame, and the inductor electricity is connected with and is used for controlling driving motor pivoted controller.
Through setting up the controller, after the support frame moved the one end of roof beam body, can trigger the inductor to make the inductor produce the sensing signal and transmit sensing signal to the controller, thereby make controller control driving motor's rotation direction change, make the support frame back and forth movement on the roof beam body, the realization sprays the maintenance to making a round trip of roof beam body.
Drawings
Fig. 1 is the utility model discloses in the embodiment one, cast-in-place box girder sprays curing means's schematic diagram.
Fig. 2 is a front view of fig. 1.
Fig. 3 is a front view of a cast-in-place box girder spray maintenance device in the second embodiment of the present invention.
Fig. 4 is the utility model discloses cast-in-place box girder sprays curing means's in embodiment three sketch views.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the device comprises a beam body 1, a support frame 2, a spray head 3, a support rod 4, a connecting rod 5, a roller 6, a driving motor 7, a driving wheel 8, a driven wheel 9, a chain 10, a connecting block 11, a water tank 12, a pressure pump 13, a protective shell 14, an auxiliary rod 15, an auxiliary wheel 16 and an inductor 17.
Example one
An embodiment substantially as shown in figures 1 and 2 of the accompanying drawings: cast-in-place case roof beam sprays curing means, including crossbearer support frame 2 on case roof beam body 1, the both ends of support frame 2 extend the both sides of the roof beam body 1 and downwardly extending to the side of the roof beam body 1, and through a plurality of shower nozzles 3 of screw fixedly connected with on the support frame 2, a plurality of shower nozzles 3 distribute in the top and the both sides of the roof beam body 1 for shower nozzle 3 can spray the maintenance simultaneously to the top surface and the both sides of the roof beam body 1.
As shown in fig. 1, the top surface of the beam body 1 is provided with two supporting members, the two supporting members are arranged along the direction perpendicular to the length of the beam body 1, in this embodiment, each supporting member includes a supporting rod 4, a connecting rod 5 and a roller 6, the upper end of the supporting rod 4 is fixedly connected with the supporting frame 2 through screws, the bottom end of the supporting rod 4 is welded to the two connecting rods 5 which are at an angle with each other, the roller 6 is fixedly connected to the bottom end of the connecting rod 5 through a bolt, the bottom end of the roller 6 is in contact with the top surface of the beam body 1, so that the roller 6 can roll on the top surface of the beam body 1 and provide support for the supporting frame 2, and the supporting frame 2 can be effectively prevented from toppling over due.
As shown in fig. 1, the front end of the beam body 1 is provided with a driving mechanism for driving the supporting frame 2 to walk along the length direction of the beam body 1, the driving mechanism comprises a driving motor 7, a driving wheel 8, a driven wheel 9, a chain 10 and a connecting block 11, the driving motor 7 is fixedly connected to the front end of the top surface of the beam body 1 through a bolt, the driven wheel 9 is rotatably connected to the rear end of the top surface of the beam body 1 through a bearing, the driving wheel 8 is fixedly connected to an output shaft of the driving motor 7 through a coupler, the chain 10 is rotatably connected between the driving wheel 8 and the driven wheel 9, the connecting block 11 is fixedly connected to the chain 10 through a screw, and meanwhile.
As shown in fig. 1, a water tank 12 is placed in the middle of the top surface of the beam body 1, a spray pipe (not shown in the figure) is connected between the water tank 12 and the spray head 3, a pressure pump 13 is connected between the water tank 12 and the spray pipe, and water in the water tank 12 is pressurized to the spray pipe through the pressure pump 13, so that the water is sprayed to the beam body 1 through the spray head 3 after passing through the spray pipe, and the spray maintenance of the beam body 1 is realized. As shown in fig. 1 and 2, a protective shell 14 is fixedly connected to the top surface of the beam body 1 through bolts, and the driving wheel 8, the driven wheel 9 and the chain 10 are all located in the protective shell 14, so that influence on transmission of the chain 10 when the spray heads 3 spray is prevented.
The specific implementation mode is as follows:
after pouring of the beam body 1 is completed, when spraying maintenance is needed to be performed on the beam body 1, firstly, the driving motor 7, the driving wheel 8, the driven wheel 9, the chain 10 and the like are installed on the beam body 1, sufficient water is added into the water tank 12, the driving motor 7 is manually started, the driving motor 7 rotates forwards to drive the driving wheel 8 to rotate forwards, the chain 10 is driven to rotate when the driving wheel 8 rotates forwards, the chain 10 drives the connecting block 11 to move along the length direction of the beam body 1, the supporting frame 2 is further driven by the connecting block 11 to travel along the length direction of the beam body 1, at the moment, the pressure pump 13 is manually started, the pressure pump 13 enables water in the water tank 12 to be pressed into the spraying pipes, and the water is finally sprayed to the top surface of the beam body 1 and two sides of the beam body 1 from the spray nozzles 3 through conveying of the spraying pipes, so that automatic spraying maintenance of the beam body 1 is realized.
Example two
The difference between the second embodiment and the first embodiment is that: as shown in fig. 3, two auxiliary rods 15 are fixedly connected to the support frame 2 through screws, the two auxiliary rods 15 are respectively located at two sides of the beam body 1, and one end, close to the side wall of the beam body 1, of each auxiliary rod 15 is rotatably connected with an auxiliary wheel 16 in contact with the side wall of the beam body 1 through screws, so that when the support frame 2 travels along the length direction of the beam body 1, the two auxiliary wheels 16 provide a guiding effect for the support frame 2, and deviation is avoided when the support frame 2 travels.
Simultaneously, the height-adjustable of shower nozzle 3 in this embodiment, its specific setting mode is: be fixed with on the support frame 2 and adjust the pole (not drawn in the picture), it has a plurality of connecting holes that are used for fixed shower nozzle 3 to open on the regulation pole in vertical direction, when fixing shower nozzle 3 to the connecting hole of difference in, the distance between shower nozzle 3 and the roof beam body 1 changes, be connected with the switch on every shower nozzle 3 simultaneously, set up the switch and make 3 height-adjustable's of shower nozzle aim at, can adjust the quantity of opening of shower nozzle 3 and adjust the height of shower nozzle 3 according to environmental condition, make roof beam body 1 obtain the appropriate amount of water that sprays, under the prerequisite of guaranteeing the maintenance effect, the use of the volume of minimizing the water, effectively practice thrift the cost.
EXAMPLE III
The difference between the third embodiment and the second embodiment is that: as shown in fig. 4, the front end and the rear end of the top surface of the beam body 1 are fixedly connected with the sensor 17 through screws, in this embodiment, the sensor 17 is an FSK-17-001 type waterproof microswitch, and the sensor 17 is located on the path of the support frame 2 along the beam body 1; meanwhile, the controller which is electrically connected with the inductor 17 is fixedly connected to the beam body 1 at the position of the driving motor 7 through a screw, the controller adopts an STM32 system single chip microcomputer, and the driving motor 7 adopts 42 series stepping motors in the embodiment for convenient control of the matched controller.
Utilize support frame 2 to drive shower nozzle 3 when spraying the maintenance to the roof beam body 1, when support frame 2 moves the one end of roof beam body 1, support frame 2 contacts and triggers inductor 17 with inductor 17, thereby make inductor 17 produce sensing signal and inductor 17 sensing signal transmission and give the controller, 7 antiport of controller control driving motor and make 8 antiport of action wheel, thereby make 8 antiport of action wheel drive chain 10, thereby make 2 direction of motion changes of support frame, realize that support frame 2 makes a round trip to walk on roof beam body 1 automatically, thereby realize continuous spraying maintenance to roof beam body 1.
The above description is only an example of the present invention, and the detailed technical solutions and/or characteristics known in the solutions are not described too much here. It should be noted that, for those skilled in the art, without departing from the technical solution of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (10)
1. Cast-in-place box girder sprays curing means, include the support frame and set up the shower on the support frame, be provided with a plurality of shower nozzles on the shower, its characterized in that: the shower nozzle is located the top and both sides of the roof beam body of case roof beam, be equipped with support piece between support frame and the roof beam body, fixedly connected with and the water tank of shower intercommunication on the roof beam body, and the one end of the roof beam body is provided with the actuating mechanism who is used for driving the support frame along roof beam body length direction walking.
2. The cast-in-place box girder spray curing device of claim 1, characterized in that: the number of the supporting pieces is a plurality, and the supporting pieces are arranged along the length direction perpendicular to the beam body.
3. The cast-in-place box girder spray curing device of claim 2, characterized in that: the support piece comprises a support rod, connecting rods and rollers, the upper end of the support rod is fixedly connected with the support frame, the bottom end of the support rod is fixedly connected with the two connecting rods which form an angle with each other, and the rollers are fixedly connected to the bottom ends of the connecting rods and are in contact with the top surface of the beam body.
4. The cast-in-place box beam spraying maintenance device of claim 3, characterized in that: actuating mechanism includes driving motor, action wheel, follows driving wheel, chain and connecting block, driving motor fixed connection is in the one end of the roof beam body, follow the driving wheel rotation and connect in the other end of the roof beam body, action wheel fixed connection is on driving motor, the chain rotates and connects between action wheel and the follow driving wheel, connecting block fixed connection on the chain and with support frame fixed connection.
5. The cast-in-place box beam spraying maintenance device of claim 4, characterized in that: the protective housing is fixedly connected between the driving wheel and the driven wheel, and the driving wheel, the driven wheel and the chain are all located in the protective housing.
6. The cast-in-place box beam spraying maintenance device of claim 5, characterized in that: and a pressure pump is connected between the water tank and the spray pipe.
7. The cast-in-place box beam spraying maintenance device of claim 6, characterized in that: the water tank is located in the middle of the top surface of the beam body.
8. The cast-in-place box beam spraying maintenance device of claim 7, characterized in that: the height of the spray head is adjustable, and a switch is arranged on the spray head.
9. The cast-in-place box girder spray curing device of any one of claims 1 to 8, characterized in that: two auxiliary rods are fixedly connected to the supporting frame and are respectively located on two sides of the beam body, and one end, close to the side wall of the beam body, of each auxiliary rod is rotatably connected with an auxiliary wheel in contact with the side wall of the beam body.
10. The cast-in-place box beam spraying maintenance device of claim 8, characterized in that: the two ends of the beam body are fixedly connected with inductors, the inductors are located on the motion path of the support frame, and the inductors are electrically connected with a controller used for controlling the rotation of the driving motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020132535.5U CN211873903U (en) | 2020-01-20 | 2020-01-20 | Cast-in-place box girder sprays curing means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020132535.5U CN211873903U (en) | 2020-01-20 | 2020-01-20 | Cast-in-place box girder sprays curing means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211873903U true CN211873903U (en) | 2020-11-06 |
Family
ID=73252237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020132535.5U Expired - Fee Related CN211873903U (en) | 2020-01-20 | 2020-01-20 | Cast-in-place box girder sprays curing means |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211873903U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113910430A (en) * | 2021-11-01 | 2022-01-11 | 中国铁路设计集团有限公司 | Integrated distributed spraying device for maintaining prefabricated box girder and application |
| CN116079878A (en) * | 2023-02-21 | 2023-05-09 | 中铁四局集团第五工程有限公司 | Automatic spraying equipment |
-
2020
- 2020-01-20 CN CN202020132535.5U patent/CN211873903U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113910430A (en) * | 2021-11-01 | 2022-01-11 | 中国铁路设计集团有限公司 | Integrated distributed spraying device for maintaining prefabricated box girder and application |
| CN116079878A (en) * | 2023-02-21 | 2023-05-09 | 中铁四局集团第五工程有限公司 | Automatic spraying equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211873903U (en) | Cast-in-place box girder sprays curing means | |
| CN105013733B (en) | Transformer substation live washing auxiliary washing robot and method | |
| CN107288661A (en) | Tunnel-liner conserves track spray equipment | |
| CN106988176B (en) | A kind of waterproof material spraying trolley and spraying method | |
| CN203523467U (en) | Automatic sprinkling device | |
| AU2021102863A4 (en) | Maintenance Equipment for Anti-collision Wall of High-speed Railway Bridge and Vertical Wall of Cable Trough | |
| CN201080674Y (en) | Steel structure architecture roof board elevated automatic conveying vehicle | |
| CN212358176U (en) | Control horizontal migration device and afforestation comprehensive maintenance car | |
| CN103392563A (en) | Automatic sprinkling irrigation equipment | |
| CN210262714U (en) | High-speed railway bridge anti-collision wall and cable duct vertical wall maintenance equipment | |
| CN210732752U (en) | Full-automatic walking hydraulic template with integral beams | |
| CN210013130U (en) | Self-propelled bridge vertical wall spraying maintenance device | |
| CN218890744U (en) | Concrete curing spray pipe support | |
| CN111021757A (en) | Intelligent concrete spraying and curing device and method | |
| CN216662905U (en) | Concrete curing means is used in tunnel engineering construction | |
| CN208010364U (en) | Fully-automatic sprinkling equipment for conserving tunnel | |
| CN217830871U (en) | Quick wiping arrangement of female pipeline | |
| CN206663499U (en) | A kind of automatic spraying maintaining machine and water supply charge control system | |
| CN215165063U (en) | Automatic health preserving device of bridge railing | |
| CN209430212U (en) | A kind of lining of novel tunnel two concrete curing trolley | |
| CN212238461U (en) | Dry ice cleaning equipment for post insulator | |
| CN112502703A (en) | Matched high-pressure spray box for coal mining equipment | |
| CN212021137U (en) | Bridge rail type automatic spraying maintenance trolley | |
| CN220072112U (en) | Linear walking type paint spraying device and anti-corrosion equipment for inner wall of tower barrel | |
| CN209082407U (en) | A kind of sanitationman's power-assisted environment-friendly vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201106 Termination date: 20220120 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |