CN210330936U - Electric wheelchair protection device - Google Patents
Electric wheelchair protection device Download PDFInfo
- Publication number
- CN210330936U CN210330936U CN201920370336.5U CN201920370336U CN210330936U CN 210330936 U CN210330936 U CN 210330936U CN 201920370336 U CN201920370336 U CN 201920370336U CN 210330936 U CN210330936 U CN 210330936U
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- fixed
- supporting shaft
- seat
- wheel body
- spring
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Abstract
The utility model discloses a protective device of an electric wheelchair, which comprises a frame, a plurality of front wheels and a plurality of rear wheels, wherein the front wheels and the rear wheels are respectively arranged at the two ends of the frame; a seat is arranged between the two rear wheels, and a seat back is arranged at one end of the seat far away from the front wheel; the upper end of the vehicle backrest is provided with a first fixed seat, and a first telescopic belt is arranged on the first fixed seat; a second fixed seat is arranged on one side, close to the first fixed seat, of the vehicle seat, and a second telescopic belt is arranged on the second fixed seat; one ends of the first telescopic belt and the second telescopic belt are connected, and a buckle is arranged at the connecting part; and a clamping groove is formed in one side of the vehicle seat opposite to the second fixing seat, and the buckle and the clamping groove are installed in a matched mode. The utility model discloses subassembly reasonable in design has not only effectively realized the safety protection of electronic wheelchair car, and the user is safe more comfortable when using simultaneously, has higher practicality.
Description
Technical Field
The utility model relates to a wheelchair protection technical field specifically is an electronic wheelchair car protector.
Background
The electric wheelchair is formed by modifying and upgrading components such as a high-performance power driving device, an intelligent operating device and a battery on the basis of a traditional manual wheelchair, is provided with an intelligent controller operated manually, can drive the wheelchair to complete the new-generation intelligent wheelchair with multiple functions of advancing, retreating, steering, standing, lying, and the like, and is a high-tech product combined in the fields of modern precision machinery, intelligent numerical control, engineering mechanics and the like.
At present, two-point type fixed safety belts are generally used on wheelchair vehicles, users feel uncomfortable if the safety belts are too tight in use, and the safety belts lose the protection effect if the safety belts are too loose, which brings great inconvenience to the users.
In view of the above circumstances, we have devised a protection device for an electric wheelchair, which is one of the problems to be solved urgently.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an electronic wheelchair car protector to solve the problem among the prior art.
In order to achieve the above object, the utility model provides a following technical scheme:
a protection device of an electric wheelchair comprises a frame, a plurality of front wheels and a plurality of rear wheels, wherein the front wheels and the rear wheels are respectively arranged at two ends of the frame; a seat is arranged between the two rear wheels, and a seat back is arranged at one end of the seat far away from the front wheel; the upper end of the vehicle backrest is provided with a first fixed seat, and a first telescopic belt is arranged on the first fixed seat; a second fixed seat is arranged on one side, close to the first fixed seat, of the vehicle seat, and a second telescopic belt is arranged on the second fixed seat; one ends of the first telescopic belt and the second telescopic belt are connected, and a buckle is arranged at the connecting part; and a clamping groove is formed in one side of the vehicle seat opposite to the second fixing seat, and the buckle and the clamping groove are installed in a matched mode.
The utility model designs an electric wheelchair protector, which comprises a frame, a plurality of front wheels and a plurality of rear wheels, wherein the frame is a conventional wheelchair frame in the market at present, and the number of the front wheels and the number of the rear wheels are all 2; in the technical scheme, a first fixed seat is designed at the top end of a backrest, a first telescopic belt is designed on the first fixed seat, a second telescopic belt is designed at one end of a saddle, a buckle is designed at the other end of the saddle, the first telescopic belt and the second telescopic belt are mutually connected and fixed through the buckle, and the second telescopic belt and the first telescopic belt are both telescopic technologies of automobile safety belts; the other end of the saddle is provided with a clamping groove which can be mutually matched and fixed through a buckle and the clamping groove; according to the technical scheme, the three-point safety belt is used for protection, and the original two-point safety belt is replaced by the three-point safety belt, so that the safety of a user is improved, and the user is prevented from separating from the wheelchair in the moving process of the wheelchair; simultaneously through the size of first flexible whole safety belt of adjustment that brings, when guaranteeing that the user sits the wheelchair, the tying up of first telescopic band and second telescopic band can be lighter, makes the user keep comfortable, designs like this simultaneously and has also improved this technical scheme's range of application greatly, is applicable to the user of different sizes, and can the popularization stronger.
Preferably, the front wheel comprises a support shaft, a buffer device and a wheel body, the support shaft comprises a first support shaft, a second support shaft and a third support shaft, the top end of the first support shaft is fixedly connected with the frame, one end of the second support shaft is fixed with the bottom end of the first support shaft, and the other end of the second support shaft is fixed with the top end of the buffer device; the wheel body is arranged below the buffer device, the third supporting shafts are respectively arranged on two sides of the wheel body, one end of each third supporting shaft is respectively fixed with the bottom end of the buffer device, and the other end of each third supporting shaft is fixedly connected with the middle of the wheel body.
Preferably, the buffer device comprises a shell, a partition plate and a spring, the partition plate is horizontally arranged in the shell, and the bottom end of the second support shaft extends into the shell and is positioned above the partition plate; the spring comprises a first spring and a second spring, one end of the first spring is respectively fixed with the bottom end of the second supporting shaft, and the other end of the first spring respectively penetrates through the partition plate and is fixed at the bottom end of the shell; the top ends of the third support shafts respectively extend into the shell and are positioned below the partition plates; one end of the second spring is fixed with the top end of the third supporting shaft, and the other end of the second spring is fixed with the bottom end of the partition plate.
The utility model discloses in designed the front wheel, including buffer, buffer's design is used for guaranteeing that during the driving, rugged road conditions can not cause the effect to the front wheel, and the current wheel receives downward effort, and the second back shaft moves downwards, and the first spring of second back shaft bottom receives pressure and begins to contract this moment, and the elasticity of first spring can play buffer, offsets the downward effort that receives; when the front wheel is acted by an upward acting force, the third supporting shaft moves upwards, the second spring is acted by the acting force of the third supporting shaft at the moment, and the second spring is buffered and counteracted with the upward acting force; the stability of the whole device is ensured to a great extent by the design of the buffer device, so that a user can move more stably when using the device.
Preferably, brake pads are further arranged on two sides of the wheel body, and the third support shaft is respectively located between the brake pads and the wheel body; a fixed shaft is arranged on the outer side of each brake pad, and a sliding block is arranged at one end of each fixed shaft, which is far away from each brake pad; the first support shaft comprises a first sliding groove, a second sliding groove and a connecting part which are connected, two ends of the connecting part are respectively connected with the first sliding groove and the second sliding groove, and the top end of the connecting part is fixed with the frame; the sliding block is respectively installed with the first sliding groove and the second sliding groove in a matched mode.
The utility model designs the brake block, wherein the number of the brake block is 2, the brake block is of a block structure, and the shape of the brake block can be freely adjusted according to the requirement in practical application; the brake pads are respectively arranged at two ends of the wheel body, a fixed shaft is arranged on the outer side of each brake pad, a sliding block is arranged above the fixed shaft, a first sliding groove and a second sliding groove are respectively arranged at two ends of the first supporting shaft, and the sliding block can move left and right on the first sliding groove and the second sliding groove; the position of the brake pad can be effectively adjusted through the design of the first sliding groove and the second sliding groove; when the brake block is used, the sliding block is pushed into the first sliding groove and the second sliding groove respectively, and the brake block is contacted with the wheel body to generate friction force to block the wheel body to move; the brake block is generally used for the condition that the wheelchair is not used, and the friction force between the brake block and the wheel body can be utilized to play a certain role in blocking and fixing the wheel body, so that the whole device can not be moved by external force when the wheel body stops moving.
Preferably, the middle of the wheel body is provided with a motor, the buffer device is provided with a plurality of storage batteries, the storage batteries are respectively fixed on the outer wall of the second supporting shaft, and the storage batteries supply power to the motor.
Establish motor and battery among this technical scheme, the battery is to the motor power supply, and the motor is used for driving the motion of wheel body, and the motion of motor drive wheel body belongs to current technique, no longer adds here and explains, through the motor drive wheel body, the motor is operating voltage 24V, power 150W's direct current motor, realizes the removal of wheelchair car.
In the technical scheme, the number of the storage batteries is 2, and in actual operation, the number of the storage batteries can be designed according to needs.
Preferably, a groove is formed in the middle of one side, close to the wheel body, of the brake pad, and the shape of the groove is matched with that of the third supporting shaft.
The utility model discloses one side middle part that well brake block is close to the wheel body is provided with the recess, and the design of recess is used for fixed third back shaft, and when the brake block was close to the wheel body, the recess agreed with each other with the third back shaft for the contact between brake block and the wheel body is inseparabler, and the fixed effect of friction is better.
Compared with the prior art, the beneficial effects of the utility model are that: when the utility model is used, the storage battery is utilized to supply power to the motor, and the motor drives the front wheel body to move so as to drive the whole wheelchair to move; after a user sits on the saddle, the lengths of the first telescopic belt and the second telescopic belt are adjusted through the buckle opening, and then the buckle and the clamping groove are matched and fixed with each other, so that the use safety of the user can be effectively protected; in the movement process, the buffer device can be used for offsetting acting force applied in the vertical direction, so that the wheelchair can move more stably under different road conditions; after the wheelchair stops moving, the sliding block is respectively pushed towards the inner sides of the first sliding groove and the second sliding groove, at the moment, the brake pad is in close contact with the front wheel body, friction force can play a role in friction fixation on the wheel body, the wheelchair is prevented from being moved by external force, and the stability of the wheelchair is ensured.
The utility model discloses an electronic wheelchair protector, subassembly reasonable in design has not only effectively realized electronic wheelchair's safety protection, and the user is safe more comfortable when using simultaneously, has higher practicality.
Drawings
In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is provided in connection with the accompanying drawings.
Fig. 1 is a schematic view of the overall structure of the electric wheelchair protector of the present invention;
fig. 2 is a schematic view of the overall structure of the electric wheelchair protector of the present invention;
fig. 3 is a schematic view of a front wheel structure of the electric wheelchair protector of the present invention;
fig. 4 is a schematic view of a front wheel structure of the electric wheelchair protector of the present invention;
fig. 5 is a schematic structural view of a buffering device of the electric wheelchair protection device of the present invention;
fig. 6 is a schematic structural view of a brake pad of the protection device of the electric wheelchair of the present invention.
In the figure: 1-frame, 2-front wheel, 21-first supporting shaft, 211-first sliding groove, 212-connecting part, 213-second sliding groove, 22-second supporting shaft, 23-third supporting shaft, 24-storage battery, 25-buffer device, 251-shell, 252-clapboard, 253-first spring, 254-second spring, 26-wheel body, 27-brake block, 271-groove, 28-motor, 29-fixed shaft, 3-rear wheel, 4-saddle, 41-second fixed seat, 42-second telescopic belt, 43-buckle, 44-clamping groove, 5-backrest, 51-first fixed seat and 52-first telescopic belt.
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.
As shown in fig. 1-6, the protection device for the electric wheelchair comprises a frame 1, a plurality of front wheels 2 and a plurality of rear wheels 3, wherein the front wheels 2 and the rear wheels 3 are respectively installed at two ends of the frame 1; a seat 4 is arranged between the two rear wheels 3, and a vehicle backrest 5 is arranged at one end of the seat 4 far away from the front wheel 2; a first fixed seat 51 is arranged at the upper end of the vehicle backrest 5, and a first telescopic belt 52 is arranged on the first fixed seat 51; a second fixed seat 41 is arranged on one side of the saddle 4 close to the first fixed seat 51, and a second telescopic belt 42 is arranged on the second fixed seat 41; one end of the first telescopic belt 52 is connected with one end of the second telescopic belt 42, and the connecting part 212 is provided with a buckle 43; a clamping groove 44 is arranged on one side of the seat 4 opposite to the second fixed seat 41, and the buckle 43 and the clamping groove 44 are installed in a matching mode.
The utility model designs a protective device of an electric wheelchair, which comprises a frame 1, a plurality of front wheels 2 and a plurality of rear wheels 3, wherein the frame 1 is a conventional wheelchair frame 1 in the market at present, and the number of the front wheels 2 and the number of the rear wheels 3 are both 2; in the technical scheme, a first fixed seat 51 is designed at the top end of a vehicle backrest 5, a first telescopic belt 52 is designed on the first fixed seat 51, a second telescopic belt 42 is designed at one end of a vehicle seat 4, a buckle 43 is designed at the other end of the vehicle seat 4, the first telescopic belt 52 and the second telescopic belt 42 are connected with each other and are mutually fixed through the buckle 43, and the second telescopic belt 42 and the first telescopic belt 52 are both telescopic technologies of a vehicle safety belt; the other end of the saddle 4 is provided with a clamping groove 44 which can be mutually matched and fixed through a buckle 43 and the clamping groove 44; according to the technical scheme, the three-point safety belt is used for protection, so that the safety of a user is improved, and the user is prevented from separating from the wheelchair in the moving process of the wheelchair; meanwhile, the size of the whole safety belt is adjusted through the first telescopic belt 52, so that when a user sits on the wheelchair, the first telescopic belt 52 and the second telescopic belt 42 can be bound more easily, the user can feel comfortable, the application range of the technical scheme is greatly widened due to the design, the safety belt is suitable for users with different body types, and the safety belt is high in popularization.
The front wheel 2 comprises a supporting shaft, a buffer device 25 and a wheel body 26, the supporting shaft comprises a first supporting shaft 21, a second supporting shaft 22 and a third supporting shaft 23, the top end of the first supporting shaft 21 is fixedly connected with the frame 1, one end of the second supporting shaft 22 is fixed with the bottom end of the first supporting shaft 21, and the other end of the second supporting shaft is fixed with the top end of the buffer device 25; the wheel body 26 is installed below the buffer device 25, the third supporting shafts 23 are respectively installed on two sides of the wheel body 26, one end of each third supporting shaft 23 is respectively fixed with the bottom end of the buffer device 25, and the other end of each third supporting shaft is fixedly connected with the middle of the wheel body 26.
The buffer device 25 comprises a shell 251, a partition plate 252 and a spring, the partition plate 252 is horizontally arranged in the shell 251, and the bottom end of the second support shaft 22 extends into the shell 251 and is positioned above the partition plate 252; the springs comprise a first spring 253 and a second spring 254, one end of the first spring 253 is respectively fixed with the bottom end of the second support shaft 22, and the other end of the first spring 253 respectively penetrates through the partition plate 252 and is fixed at the bottom end of the shell 251; the top ends of the third support shafts 23 respectively extend into the shell 251 and are positioned below the partition plates 252; one end of the second spring 254 is fixed to the top end of the third support shaft 23, and the other end is fixed to the bottom end of the partition plate 252.
The utility model discloses in designed front wheel 2, including buffer 25, buffer 25's design is used for guaranteeing that in the driving process, rugged road conditions can not cause the effect to front wheel 2, and current wheel 2 receives decurrent effort, and second back shaft 22 moves down, and the first spring 253 of second back shaft 22 bottom receives pressure and begins to contract this moment, and buffer 25 can be played to the elasticity of first spring 253, offsets the decurrent effort that receives; when the front wheel 2 is acted by an upward acting force, the third supporting shaft 23 moves upwards, at the moment, the second spring 254 is acted by the third supporting shaft 23, and the second spring 254 performs buffering and counteracts the exerted upward acting force; the design of the buffer device 25 ensures the stability of the whole device to a great extent, so that the device can move more stably when being used by a user.
The utility model designs the brake block 27, wherein the number of the brake block 27 is 2, the brake block 27 is a block structure, and the shape of the brake block 27 can be freely adjusted according to the requirement in practical application; the brake pads 27 are respectively installed at two ends of the wheel body 26, the outer sides of the brake pads 27 are provided with fixing shafts 29, sliding blocks are arranged above the fixing shafts 29, two ends of the first supporting shaft 21 are respectively provided with a first sliding groove 211 and a second sliding groove 213, and the sliding blocks can move left and right on the first sliding groove 211 and the second sliding groove 213; the position of the brake pad 27 can be effectively adjusted through the design of the first sliding groove 211 and the second sliding groove 213; when the brake is used, the sliding blocks are respectively pushed to the inner sides of the first sliding groove 211 and the second sliding groove 213, and the brake pads 27 are in contact with the wheel body 26 to generate friction force to block the wheel body 26 from moving; the brake block 27 is generally used when the wheelchair is not in use, and the friction force between the brake block 27 and the wheel body 26 can be utilized to block and fix the wheel body 26 to a certain extent, so that the whole device cannot be moved by external force when the wheel body 26 stops moving.
The middle of the wheel body 26 is provided with a motor 28, the buffer device 25 is provided with a plurality of storage batteries 24, the storage batteries 24 are respectively fixed on the outer wall of the second supporting shaft 22, and the storage batteries 24 supply power to the motor 28.
In the technical scheme, the motor 28 and the storage battery 24 are arranged, the storage battery 24 supplies power to the motor 28, and the motor 28 provides power for the movement of the wheel body 26; the wheel body 26 is driven by the motor 28 to move, which belongs to the prior art, and is developed at present, and no more details are given here, the wheel body 26 is driven by the motor 28, and the motor 28 is a direct current motor with 24V working voltage and 150W power, so as to realize the movement of the wheelchair.
The middle part of one side of the brake block 27 close to the wheel body 26 is provided with a groove 271, and the shape of the groove 271 is matched with the shape of the third supporting shaft 23.
The utility model discloses well brake block 27 is provided with recess 271 near one side middle part of wheel body 26, and the design of recess 271 is used for fixed third back shaft 23, and when brake block 27 was close to wheel body 26, recess 271 agreed with each other with third back shaft 23 for the contact between brake block 27 and the wheel body 26 is inseparabler, and the fixed effect of friction is better.
When the utility model is used, the storage battery 24 is used for supplying power to the motor 28, and the motor 28 drives the wheel body 26 of the front wheel 2 to move so as to drive the whole wheelchair to move; after a user sits on the seat 4, the lengths of the first telescopic belt 52 and the second telescopic belt 42 are adjusted through the opening of the buckle 43, and the buckle 43 and the clamping groove 44 are matched and fixed with each other, so that the use safety of the user can be effectively protected; in the movement process, the buffer device 25 can be used for offsetting acting force applied in the vertical direction, so that the wheelchair can move more stably under different road conditions; after the wheelchair stops moving, the sliding blocks are respectively pushed towards the inner sides of the first sliding groove 211 and the second sliding groove 213, at the moment, the brake pads 27 are in close contact with the wheel body 26 of the front wheel 2, friction force can play a role in friction fixation on the wheel body 26, the wheelchair is prevented from moving due to external force, and the stability of the wheelchair is ensured.
The utility model discloses an electronic wheelchair protector, subassembly reasonable in design has not only effectively realized electronic wheelchair's safety protection, and the user is safe more comfortable when using simultaneously, has higher practicality.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
1. The utility model provides an electronic wheelchair car protector which characterized in that: the protective device comprises a frame (1), a plurality of front wheels (2) and a plurality of rear wheels (3), wherein the front wheels (2) and the rear wheels (3) are respectively arranged at two ends of the frame (1); a seat (4) is arranged between the two rear wheels (3), and a vehicle backrest (5) is arranged at one end of the seat (4) far away from the front wheel (2); a first fixed seat (51) is arranged at the upper end of the vehicle backrest (5), and a first telescopic belt (52) is arranged on the first fixed seat (51); a second fixed seat (41) is arranged on one side, close to the first fixed seat (51), of the seat (4), and a second telescopic belt (42) is arranged on the second fixed seat (41); one ends of the first telescopic belt (52) and the second telescopic belt (42) are connected, and the connecting part (212) is provided with a buckle (43); a clamping groove (44) is formed in one side, opposite to the second fixing seat (41), of the seat (4), and the buckle (43) and the clamping groove (44) are installed in a matched mode.
2. The electric wheelchair protector as claimed in claim 1, wherein: the front wheel (2) comprises a supporting shaft, a buffering device (25) and a wheel body (26), the supporting shaft comprises a first supporting shaft (21), a second supporting shaft (22) and a third supporting shaft (23), the top end of the first supporting shaft (21) is fixedly connected with the frame (1), one end of the second supporting shaft (22) is fixed with the bottom end of the first supporting shaft (21), and the other end of the second supporting shaft is fixed with the top end of the buffering device (25); the wheel body (26) is arranged below the buffer device (25), the third supporting shafts (23) are respectively arranged on two sides of the wheel body (26), one end of each third supporting shaft (23) is fixed to the bottom end of the buffer device (25), and the other end of each third supporting shaft is fixedly connected with the middle of the wheel body (26).
3. An electric wheelchair safety feature as claimed in claim 2, wherein: the buffer device (25) comprises a shell (251), a partition plate (252) and a spring, the partition plate (252) is horizontally arranged in the shell (251), and the bottom end of the second support shaft (22) extends into the shell (251) and is positioned above the partition plate (252); the springs comprise a first spring (253) and a second spring (254), one end of the first spring (253) is respectively fixed with the bottom end of the second supporting shaft (22), and the other end of the first spring (253) penetrates through the partition plate (252) and is fixed at the bottom end of the shell (251); the top ends of the third support shafts (23) respectively extend into the shell (251) and are positioned below the partition plates (252); one end of the second spring (254) is fixed with the top end of the third supporting shaft (23), and the other end of the second spring is fixed with the bottom end of the partition plate (252).
4. An electric wheelchair safety feature as claimed in claim 3 wherein: brake pads (27) are further arranged on two sides of the wheel body (26), and the third supporting shaft (23) is respectively located between the brake pads (27) and the wheel body (26); a fixed shaft (29) is respectively arranged on the outer side of each brake pad (27), and a sliding block is arranged at one end, far away from the brake pads (27), of each fixed shaft (29); the first support shaft (21) comprises a first sliding groove (211), a second sliding groove (213) and a connecting part (212) which are connected, two ends of the connecting part (212) are respectively connected with the first sliding groove (211) and the second sliding groove (213), and the top end of the connecting part (212) is fixed with the frame (1); the sliding block is respectively matched and installed with the first sliding groove (211) and the second sliding groove (213).
5. An electric wheelchair safety feature as claimed in claim 4, wherein: the middle of the wheel body (26) is provided with a motor (28), the buffer device (25) is provided with a plurality of storage batteries (24), the storage batteries (24) are respectively fixed on the outer wall of the second supporting shaft (22), and the storage batteries (24) supply power to the motor (28).
6. An electric wheelchair safety feature as claimed in claim 5, wherein: a groove (271) is formed in the middle of one side, close to the wheel body (26), of the brake pad (27), and the shape of the groove (271) is matched with that of the third supporting shaft (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920370336.5U CN210330936U (en) | 2019-03-22 | 2019-03-22 | Electric wheelchair protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920370336.5U CN210330936U (en) | 2019-03-22 | 2019-03-22 | Electric wheelchair protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210330936U true CN210330936U (en) | 2020-04-17 |
Family
ID=70172261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920370336.5U Expired - Fee Related CN210330936U (en) | 2019-03-22 | 2019-03-22 | Electric wheelchair protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210330936U (en) |
-
2019
- 2019-03-22 CN CN201920370336.5U patent/CN210330936U/en not_active Expired - Fee Related
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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: 20200417 Termination date: 20210322 |
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| CF01 | Termination of patent right due to non-payment of annual fee |