CN215763111U - Multidirectional transmission mechanism of power assisting device of bed for rising and lying - Google Patents
Multidirectional transmission mechanism of power assisting device of bed for rising and lying Download PDFInfo
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- CN215763111U CN215763111U CN202121728847.3U CN202121728847U CN215763111U CN 215763111 U CN215763111 U CN 215763111U CN 202121728847 U CN202121728847 U CN 202121728847U CN 215763111 U CN215763111 U CN 215763111U
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- 230000000630 rising effect Effects 0.000 title claims abstract description 125
- 230000005540 biological transmission Effects 0.000 title claims abstract description 87
- 230000007246 mechanism Effects 0.000 title claims abstract description 48
- 230000002457 bidirectional effect Effects 0.000 claims description 8
- 230000007306 turnover Effects 0.000 claims description 4
- 238000011161 development Methods 0.000 abstract description 4
- 230000001737 promoting effect Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000002567 autonomic effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model relates to a multi-directional transmission mechanism of a rising and lying bed power assisting device, which comprises a multi-directional transmission shaft, a rising and lying plate two-way lifting transmission mechanism, a rising and lying plate tray, a rising and lying plate horizontal rotation semicircular gear, a driving shaft, a rising and lying plate tray vertical turning electromagnetic clutch, a driving worm, a transmission shaft worm gear, a rising and lying plate horizontal rotation electromagnetic clutch, an axial-type horizontal rotation worm and the like, wherein 1 set of driving system and 1 motor are adopted to drive 3 mechanisms in different operation directions to move, so that 270-degree axial turning of the rising and lying plate tray, 90-degree horizontal turning of the rising and lying tray and 70-degree reciprocating swinging of the rising and lying plate two-way lifting transmission mechanism are realized, the power assisting device has the characteristics of compact structure, small occupied space, convenience and comfort in use, simplicity and convenience in operation, safety, low power consumption, high cost performance and the like, and can meet the power assisting requirements of rising and lying of old people, has important practical significance and good application prospect for promoting the popularization, the application and the development of the old-assisting device in China.
Description
Technical Field
The utility model relates to a multidirectional transmission mechanism of a power assisting device of a bed for rising and lying, belonging to the technical field of household old-age assisting power.
Background
With the continuous increase of the population proportion of the old people in China, although the population of the old people who can live and self-care but are difficult to move due to the old people is continuously increased, the demands of the old people for family life and old-assisting of urban and rural residents are directly influenced, the society and people pay extensive attention and high attention, the basic living problems of the old people such as weak body and difficult self-care are solved, the quality of life and the safety of the old people are improved, and the method becomes one of the problems to be urgently solved in the whole society and every family.
In daily life, the old people are difficult to get up or lie in bed, the old people often need help of other people to finish basic actions of getting up or lying in bed, the old people are hard to finish simple actions, a convenient and power-assisted getting-up and lying-in bed device is designed, the basic life problem of weakness of the old people is solved, and the basic life quality of the old people is improved and guaranteed.
Home equipment suitable for old people and assisting power is continuously researched and developed at home and abroad, more and more products related to the function of assisting the old people to move are produced, and the product which is helpful for the old people to get up to bed is more popular in the market. The most common old people bed-rising and lying assisting device in the market at present is an electric old people bed-rising assisting device, and the angles of a seat surface, a backrest and leg rests are adjusted through a remote control button, so that the assisting effect of the old people in bed-rising and lying is achieved; these products all need set up a plurality of motors and drive mechanism, realize the helping hand function of bed through the drive of different mechanisms respectively, and these device structures are complicated and bulky, and purchase and use cost height are in the middle of, and the usage space receives very big restriction moreover, is difficult to popularize and apply in ordinary family.
The development of helping hand products for the old is more and more emphasized, and the research is classified and researched to the existing helping hand old person bed apparatus that rises and lies in market, combines the research of ergonomic theory to explore the design requirement of old person's helping hand bed apparatus that rises, has both helped the function of old person's autonomic bed activity that rises, still needs economical and practical easily to promote in ordinary family.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art and provides a multidirectional transmission mechanism of a power assisting device of a bed for getting up and lying.
A multi-directional transmission mechanism of a power assisting device of a bed for getting up and lying comprises a two-way lifting transmission mechanism of a board for getting up and lying, a tray of the board for getting up and lying and a semicircular horizontal rotation gear of the board for getting up and lying; the front parts of the two sides of the rising and lying plate tray are provided with an axial-through rising and lying plate tray vertical turning driving arm and an axial-through rising and lying plate tray vertical turning driven arm; a multidirectional transmission shaft is arranged between the shaft-through type rising and lying plate tray vertical turning driving arm and the shaft-through type rising and lying plate tray vertical turning driven arm; the horizontal rotary semicircular gear of the lying plate is arranged on the lying plate tray and is rotationally connected with the lying plate tray; the multi-directional transmission shaft is sequentially provided with a horizontal driving mechanism meshed with the horizontal rotary semicircular gear of the rising and lying plate and a swinging mechanism for swinging the tray of the rising and lying plate; the two-way lifting transmission mechanism of the lying plate is meshed with the horizontal rotary semicircular gear of the lying plate, and the horizontal rotary semicircular gear of the lying plate drives the two-way lifting transmission mechanism of the lying plate to swing.
Furthermore, the horizontal driving mechanism comprises a shaft-through horizontal rotary worm meshed with the horizontal rotary semicircular gear of the lifting plate and a horizontal rotary electromagnetic clutch of the lifting plate sleeved on the multidirectional transmission shaft; the shaft type horizontal rotary worm is connected to one end of the horizontal rotary electromagnetic clutch of the rising and lying plate through a shaft type horizontal rotary worm linkage shaft sleeve, and the other end of the horizontal rotary electromagnetic clutch of the rising and lying plate is fixed on the multidirectional transmission shaft.
Further, the swing mechanism comprises a lifting plate tray vertical turnover electromagnetic clutch, a transmission shaft worm gear and a transmission shaft worm gear; the transmission shaft worm wheel is fixed on the multidirectional transmission shaft; the rising and lying plate tray vertical overturning electromagnetic clutch is arranged on the multidirectional transmission shaft, one end of the rising and lying plate tray vertical overturning electromagnetic clutch is fixed on the multidirectional transmission shaft, and the other end of the rising and lying plate tray vertical overturning electromagnetic clutch is linked to the axial type rising and lying plate tray vertical overturning driving arm through an axial type rising and lying plate tray vertical overturning driving arm linkage shaft sleeve; the transmission shaft worm wheel is meshed with the driving worm.
Further, a driving shaft is connected to the end of the driving worm, and a driving device is connected to the driving shaft.
Further, the driving device is a driving motor.
Furthermore, a horizontal rotating shaft sleeve of the rising and lying plate tray is arranged at the central position of the rising and lying plate tray, and the horizontal rotating semicircular gear of the rising and lying plate is installed on the horizontal rotating shaft sleeve of the rising and lying plate tray through a bearing seat of the horizontal rotating semicircular gear of the rising and lying plate.
Compared with the prior art, the utility model has the following beneficial effects: the utility model adopts a sleeve driving system to respectively control the combination and the separation of electromagnetic clutches, and respectively drives the 270-degree axial turnover of the rising and lying plate tray, the 90-degree horizontal rotation of the rising and lying tray and the 70-degree reciprocating swing of the rising and lying plate bidirectional lifting transmission mechanism according to the control of an operating program, thereby realizing all functions of assisting the old to get up and lie down;
the multidirectional transmission mechanism of the power assisting device for getting up and lying has the characteristics of compact structure, small occupied space, convenience and comfort in use, simplicity and safety in operation, low power consumption, high cost performance and the like, the technology is not applied to the power assisting device for getting up and lying at home and abroad, the power assisting requirements of old people for getting up and lying in bed are met, and the multidirectional transmission mechanism has important practical significance and good application prospect for promoting popularization, application and development of the power assisting device for old people in China.
Drawings
FIG. 1 is a schematic structural view of a multidirectional transmission mechanism of a power assisting device for a bed rising and sleeping of the utility model;
in the figure: 1. the multi-directional transmission shaft, 2, a rising and lying plate two-way lifting transmission mechanism, 3, a rising and lying plate tray, 4, a rising and lying plate horizontal turning semicircular gear bearing seat, 5, a rising and lying plate tray horizontal turning shaft sleeve, 6, a rising and lying plate horizontal turning semicircular gear, 7, a driving shaft, 8, a general shaft type rising and lying plate tray vertical turning driving arm, 9, a general shaft type rising and lying plate tray vertical turning driving arm linkage shaft sleeve, 10, a rising and lying plate tray vertical turning electromagnetic clutch, 11, a driving worm, 12, a transmission shaft worm gear, 13, a rising and lying plate horizontal turning electromagnetic clutch, 14, a general shaft type horizontal turning worm linkage sleeve, 15, a general shaft type horizontal turning worm, 16 and a general shaft type rising and lying plate tray vertical turning driven arm.
Detailed Description
The utility model is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
As shown in fig. 1, a multidirectional transmission mechanism of a rising and lying bed power assisting device is disclosed, which is composed of a multidirectional transmission shaft 1, a rising and lying plate bidirectional lifting transmission mechanism 2, a rising and lying plate tray 3, a rising and lying plate horizontal turning semicircular gear bearing seat 4, a rising and lying plate tray horizontal turning shaft sleeve 5, a rising and lying plate horizontal turning semicircular gear 6, a driving shaft 7, an axial-way rising and lying plate tray vertical turning driving arm 8, an axial-way rising and lying plate tray vertical turning driving arm linkage shaft sleeve 9, a rising and lying plate tray vertical turning electromagnetic clutch 10, a driving worm 11, a transmission shaft worm gear 12, a rising and lying plate horizontal turning electromagnetic clutch 13, an axial-way horizontal turning worm linkage shaft sleeve 14, an axial-way horizontal turning worm 15 and an axial-way rising and lying plate tray vertical turning driven arm 16;
the shaft-through type rising and lying plate tray vertical turning driving arm 8 and the shaft-through type rising and lying plate tray vertical turning driven arm 16 are respectively arranged at the front parts of the two sides of the rising and lying plate tray 3, the rising and lying plate tray horizontal turning shaft sleeve 5 is arranged in the middle above the rising and lying plate tray 3, and the rising and lying plate horizontal turning semicircular gear 6 is installed on the rising and lying plate tray horizontal turning shaft sleeve 5 through the rising and lying plate horizontal turning semicircular gear bearing seat 4; the axial-type horizontal rotary worm 15, the axial-type horizontal rotary worm linkage shaft sleeve 14 and the horizontal rotary electromagnetic clutch 13 of the lifting plate are sequentially arranged on the multidirectional transmission shaft 1, the axial-type horizontal rotary worm 15 is connected to one end of the horizontal rotary electromagnetic clutch 13 of the lifting plate through the axial-type horizontal rotary worm linkage shaft sleeve 14, and the other end of the horizontal rotary electromagnetic clutch 13 of the lifting plate is fixed on the multidirectional transmission shaft 1; the transmission shaft worm wheel 12 is fixed on the multidirectional transmission shaft 1; the lifting plate tray vertical turning electromagnetic clutch 10, the through-shaft lifting plate tray vertical turning driving arm linkage sleeve 9 and the through-shaft lifting plate tray vertical turning driving arm linkage sleeve 9 are sequentially arranged on the multidirectional transmission shaft 1, one end of the lifting plate tray vertical turning electromagnetic clutch 10 is fixed on the multidirectional transmission shaft 1, and the other end of the lifting plate tray vertical turning electromagnetic clutch 10 is connected to the through-shaft lifting plate tray vertical turning driving arm 8 through the through-shaft lifting plate tray vertical turning driving arm linkage sleeve 9; the shaft-through type rising and lying plate tray vertical turning driving arm 8 and the shaft-through type rising and lying plate tray vertical turning driven arm 16 are respectively arranged at two ends of the multidirectional transmission shaft 1; the driving worm 11 is fixed at the front end of the driving shaft 7, and the driving worm 11 is meshed with the transmission shaft worm wheel 12; the shaft-through horizontal rotary worm 15 is meshed with the horizontal rotary semicircular gear 6 of the rising and lying plate; the horizontal rotary semicircular gear 6 of the lying plate drives the two-way lifting transmission mechanism 2 of the lying plate to swing.
When a multidirectional transmission mechanism of a lifting bed power assisting device drives a lifting plate tray to axially turn over for 270 degrees, a driving shaft 7 drives a driving worm 11 to rotate, and the driving worm 11 drives a transmission shaft worm wheel 12 to drive a multidirectional transmission shaft 1 to rotate; at the moment, the horizontal turning electromagnetic clutch 13 of the rising and lying plate is in a separated state, the shaft general type horizontal turning worm linked shaft sleeve 14 and the shaft general type horizontal turning worm 15 connected with the horizontal turning electromagnetic clutch 13 of the rising and lying plate do not turn around along with the multidirectional transmission shaft 1, and the horizontal turning semicircular gear 6 of the rising and lying plate keeps unchanged in position; at the moment, the rising and lying plate tray vertical overturning electromagnetic clutch 10 is in a combined state, the multidirectional transmission shaft 1 drives the rising and lying plate tray vertical overturning electromagnetic clutch 10 to rotate, the rising and lying plate tray vertical overturning electromagnetic clutch 10 drives the axial-type rising and lying plate tray vertical overturning driving arm 8 through the axial-type rising and lying plate tray vertical overturning driving arm linkage shaft sleeve 9, the axial-type rising and lying plate tray vertical overturning driving arm 8 drives the rising and lying plate tray 3 to perform 270-degree axial overturning by taking the multidirectional transmission shaft 1 as an axis, and the axial-type rising and lying plate tray vertical overturning is driven by the movable arm 16 to perform 270-degree axial follow-up overturning by taking the multidirectional transmission shaft 1 as an axis under the driving of the rising and lying plate tray 3.
When a multidirectional transmission mechanism of a lifting bed power assisting device drives a lifting plate horizontal rotation semicircular gear 6 to horizontally rotate for 90 degrees, a driving shaft 7 drives a driving worm 11 to rotate, and the driving worm 11 drives a transmission shaft worm gear 12 to drive a multidirectional transmission shaft 1 to rotate; at the moment, the rising and lying plate tray vertical overturning electromagnetic clutch 10 is in a separated state, the axial-through rising and lying plate tray vertical overturning driving arm linkage shaft sleeve 9 and the axial-through rising and lying plate tray vertical overturning driving arm 8 which are connected with the rising and lying plate tray vertical overturning electromagnetic clutch 10 do not rotate along with the multidirectional transmission shaft 1, and the rising and lying plate tray 3 keeps a horizontal position unchanged; at this time, the rising and lying plate horizontal rotation electromagnetic clutch 13 is in a combined state, the axial general type horizontal rotation worm linked shaft sleeve 14 and the axial general type horizontal rotation worm 15 connected with the rising and lying plate horizontal rotation electromagnetic clutch 13 rotate under the driving of the multidirectional transmission shaft 1, and the axial general type horizontal rotation worm 15 drives the rising and lying plate horizontal rotation semicircular gear 6 to horizontally rotate on the rising and lying plate tray 3 by 90 degrees by taking the rising and lying plate tray horizontal rotation shaft sleeve 5 as an axis.
When a multidirectional transmission mechanism of a lifting bed power assisting device drives a lifting bed plate bidirectional lifting transmission mechanism to swing for 70 degrees, a driving shaft 7 drives a driving worm 11 to rotate, and the driving worm 11 drives a transmission shaft worm wheel 12 to drive a multidirectional transmission shaft 1 to rotate; at the moment, the rising and lying plate tray vertical overturning electromagnetic clutch 10 is in a separated state, the axial-through rising and lying plate tray vertical overturning driving arm linkage shaft sleeve 9 and the axial-through rising and lying plate tray vertical overturning driving arm 8 which are connected with the rising and lying plate tray vertical overturning electromagnetic clutch 10 do not rotate along with the multidirectional transmission shaft 1, and the rising and lying plate tray 3 keeps a horizontal position unchanged; at the moment, the rising and lying plate horizontal rotation electromagnetic clutch 13 is in a combined state, the axial general type horizontal rotation worm linked shaft sleeve 14 and the axial general type horizontal rotation worm 15 connected with the rising and lying plate horizontal rotation electromagnetic clutch 13 rotate under the driving of the multidirectional transmission shaft 1, and the axial general type horizontal rotation worm 15 drives the rising and lying plate horizontal rotation semicircular gear 6 to horizontally rotate for 90 degrees on the rising and lying plate tray 3 by taking the rising and lying plate tray horizontal rotation shaft sleeve 5 as an axis; when the horizontal rotation semicircular gear 6 of the rising and lying plate horizontally rotates for 90 degrees, the horizontal rotation semicircular gear 6 of the rising and lying plate synchronously drives the bidirectional lifting transmission mechanism 2 of the rising and lying plate to swing for 70 degrees.
The multidirectional transmission mechanism of the power assisting device for the bed to get up and lie down has the advantages that: the device adopts 1 set of driving system and 1 motor, respectively controls the combination and the separation of 2 electromagnetic clutches, and respectively drives the 270-degree axial overturning of the rising and lying plate tray, the 90-degree horizontal rotation of the rising and lying tray and the 70-degree reciprocating swing of the rising and lying plate bidirectional lifting transmission mechanism according to the operation program control, thereby realizing all functions of assisting the old to get up and lie in bed. The multidirectional transmission mechanism of the power assisting device for the rising and lying bed has the characteristics of compact structure, small occupied space, convenience and comfort in use, simplicity and safety in operation, low power consumption, high cost performance and the like, the technology is not applied to power assisting devices for the rising and lying bed at home and abroad, the power assisting requirements of old people for the rising and lying bed are met, and the multidirectional transmission mechanism has important practical significance and good application prospect for promoting the popularization, application and development of the power assisting device for the old people in China.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (6)
1. A multi-directional transmission mechanism of a lifting bed power assisting device is characterized by comprising a lifting plate bidirectional lifting transmission mechanism (2), a lifting plate tray (3) and a lifting plate horizontal rotation semicircular gear (6); the front parts of the two sides of the rising and lying plate tray (3) are provided with an axial-through rising and lying plate tray vertical turning driving arm (8) and an axial-through rising and lying plate tray vertical turning driven arm (16); a multidirectional transmission shaft (1) is arranged between the shaft-through type rising and lying plate tray vertical turning driving arm (8) and the shaft-through type rising and lying plate tray vertical turning driven arm (16); the horizontal rotary semicircular gear (6) of the lifting plate is arranged on the lifting plate tray (3) and is rotationally connected with the lifting plate tray (3); the multidirectional transmission shaft (1) is sequentially provided with a horizontal driving mechanism meshed with the horizontal rotary semicircular gear (6) of the rising and lying plate and a swinging mechanism for swinging the tray (3) of the rising and lying plate; the rising and lying plate bidirectional lifting transmission mechanism (2) is meshed with the rising and lying plate horizontal rotation semicircular gear (6), and the rising and lying plate horizontal rotation semicircular gear (6) drives the rising and lying plate bidirectional lifting transmission mechanism (2) to swing.
2. The multi-directional transmission mechanism of the power assisting device for the bed rising and lying according to claim 1, wherein the horizontal driving mechanism comprises a shaft-general horizontal rotating worm (15) meshed with the horizontal rotating semicircular gear (6) of the bed rising plate and a horizontal rotating electromagnetic clutch (13) of the bed rising plate sleeved on the multi-directional transmission shaft (1); the general-axis horizontal rotary worm (15) is connected with one end of the horizontal rotary electromagnetic clutch (13) of the rising and lying plate through a general-axis horizontal rotary worm linkage shaft sleeve (14), and the other end of the horizontal rotary electromagnetic clutch (13) of the rising and lying plate is fixed on the multidirectional transmission shaft (1).
3. The multi-directional transmission mechanism of the power assisting device of the bed for getting up and lying according to claim 1, wherein the swinging mechanism comprises a tray vertical turnover electromagnetic clutch (10), a transmission shaft worm gear (12) and a transmission shaft worm gear (12); the transmission shaft worm wheel (12) is fixed on the multidirectional transmission shaft (1); the lifting plate tray vertical overturning electromagnetic clutch (10) is arranged on the multidirectional transmission shaft (1), one end of the lifting plate tray vertical overturning electromagnetic clutch (10) is fixed on the multidirectional transmission shaft (1), and the other end of the lifting plate tray vertical overturning electromagnetic clutch is connected to the through-shaft lifting plate tray vertical overturning driving arm linkage shaft sleeve (9) through the through-shaft lifting plate tray vertical overturning driving arm linkage shaft sleeve (8); the transmission shaft worm wheel (12) is meshed with the driving worm (11).
4. The multi-directional transmission mechanism of the bed lifting and sleeping aid device according to claim 3, wherein a driving shaft (7) is connected to the end of the driving worm (11), and a driving device is connected to the driving shaft (7).
5. The multi-directional transmission mechanism of a bed lifting and sleeping aid according to claim 4, wherein the driving device is a driving motor.
6. The multi-directional transmission mechanism of the lifting bed power assisting device is characterized in that a lifting plate tray horizontal rotating shaft sleeve (5) is arranged in the center of the lifting plate tray (3), and a lifting plate horizontal rotating semicircular gear (6) is installed on the lifting plate tray horizontal rotating shaft sleeve (5) through a lifting plate horizontal rotating semicircular gear bearing seat (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121728847.3U CN215763111U (en) | 2021-07-28 | 2021-07-28 | Multidirectional transmission mechanism of power assisting device of bed for rising and lying |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121728847.3U CN215763111U (en) | 2021-07-28 | 2021-07-28 | Multidirectional transmission mechanism of power assisting device of bed for rising and lying |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215763111U true CN215763111U (en) | 2022-02-08 |
Family
ID=80107941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121728847.3U Expired - Fee Related CN215763111U (en) | 2021-07-28 | 2021-07-28 | Multidirectional transmission mechanism of power assisting device of bed for rising and lying |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215763111U (en) |
-
2021
- 2021-07-28 CN CN202121728847.3U patent/CN215763111U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220208 |