CN106219434B - A kind of power equipment Foldable lift device - Google Patents
A kind of power equipment Foldable lift device Download PDFInfo
- Publication number
- CN106219434B CN106219434B CN201610607216.3A CN201610607216A CN106219434B CN 106219434 B CN106219434 B CN 106219434B CN 201610607216 A CN201610607216 A CN 201610607216A CN 106219434 B CN106219434 B CN 106219434B
- Authority
- CN
- China
- Prior art keywords
- strut
- hoistable platform
- pedestal
- lowermost
- cross bar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/28—Constructional details, e.g. end stops, pivoting supporting members, sliding runners adjustable to load dimensions
Abstract
The invention discloses a kind of power equipment Foldable lift devices,Including pedestal and the hoistable platform being arranged above the pedestal,4 bearings are provided on the pedestal,It is respectively arranged with lowermost strut on the bearing,The lowermost strut is rotatably connected on the bearing,It is provided with hydraulic cylinder on the pedestal,The hydraulic cylinder lower end is rotatably connected on the pedestal upper surface,The upper end of the hydraulic cylinder is hinged on the lowermost strut side wall,The U-shaped profile of the lowermost strut,Described bearing one end is provided with top strut in the lowermost strut,It is provided with shaft on the lowermost strut,The top strut is sleeved in the shaft,It is provided with sprocket wheel in the shaft,The motor for driving the sprocket wheel to rotate is provided on the inside of the top strut,The present invention can facilitate the progress of equipment utilization hoistable platform is longitudinally fed.
Description
Technical field
The present invention relates to a kind of power equipment Foldable lift devices.
Background technology
The existing mode for conveying power equipment to high-altitude operation platform is mainly directly lifted, by hanging device
Place to be used is driven, then power equipment is lifted into eminence and realizes operation.Due to hanging device it is generally necessary to preferable road
Face ring border, it is very inconvenient using hanging device in the less convenient occasion of the environment such as mountain area.
Invention content
The purpose of the present invention is to provide a kind of power equipment Foldable lift devices, can facilitate and lift equipment utilization
Platform carries out longitudinally fed.
The invention is realized by the following technical scheme：
A kind of power equipment Foldable lift device, including pedestal and the hoistable platform that is arranged above the pedestal,
It is provided with 4 bearings on the pedestal, lowermost strut is respectively arranged on the bearing, the lowermost strut turns
It is dynamic to be connected on the bearing, hydraulic cylinder is provided on the pedestal, the hydraulic cylinder lower end is rotatably connected on institute
On the pedestal upper surface stated, the upper end of the hydraulic cylinder is hinged on the lowermost strut side wall, the lowermost strut
U-shaped profile, described bearing one end is provided with top strut in the lowermost strut, is supportted in the lower part
Shaft is provided on bar, the top strut is sleeved in the shaft, and the cross section of the top strut is in hollow
Structure is provided with sprocket wheel in the shaft, is provided on the inside of the top strut for driving the chain to rotate
Dynamic motor is provided with band-type brake on the motor, is provided with far from described shaft one end in the top strut convex
Edge is respectively arranged with straight slot in four angle positions of the hoistable platform, bolt, institute is provided on the inside of the straight slot
It is provided with the through-hole of strip on the flange stated, is plugged in the middle part of the bolt in the through-hole.
Further, for the present invention is better achieved, cross bar, the cross bar are provided with above the hoistable platform
Downward 90 ° of both ends bend and are detachably connected on the hoistable platform.
Further, for the present invention is better achieved, through-hole, the cross bar two are provided on the hoistable platform
End extends through the through-hole, and locking screw is respectively installed on the cross bar of the both sides up and down of the hoistable platform
It is female.
Further, for the present invention is better achieved, slide plate, the slide plate are provided with above the hoistable platform
Baffle is provided with above one end, the length direction of the baffle is parallel to the length direction of the cross bar.
Further, for the present invention is better achieved, several counterbores are provided on the slide plate upper surface.
Further, for the present invention is better achieved, half straight slot, the half straight slot position are provided on the slide plate
In the counterbore both sides, locating rod is provided on the inside of half straight slot, the locating rod lower end is rotatably connected on described
Half straight slot in, the locating rod upper end is provided with L-shaped buckle, the buckle threaded one end is connected with casing,
Described sleeve pipe is sleeved on far from described buckle one end in the locating rod.
Further, for the present invention is better achieved, described buckle one end is provided with ring-type in the locating rod
Flange, described casing one end are bent to form bending part inwardly, and the internal diameter of the bending part is less than the collar flange
Outer diameter.
Further, for the present invention is better achieved, the buckle is provided with threaded hole far from described casing one end,
It is provided with hold-down bolt in the threaded hole.
Further, for the present invention is better achieved, the hold-down bolt end is provided with non-slip mat.
Compared with prior art, the present invention having the advantages that：
The present invention makes hydraulic cylinder drive in lower crosspiece relative rotational motion by the lowermost strut being hinged on bearing,
Realize the adjusting of hoistable platform height, meanwhile, using top pole structure, the further raising of hoistable platform is realized, due to adopting
The rotation of top strut opposing lower portions strut is driven with motor, can realize the behaviour folded against between top strut and lowermost strut
Make.
Description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is overall structure of the present invention；
Fig. 2 is top strut of the present invention and lowermost strut connecting portion structural schematic diagram；
Fig. 3 is hoistable platform structural schematic diagram of the present invention；
Fig. 4 is positional lever structure schematic diagram of the present invention.
Wherein：101. pedestal, 102. hoistable platforms, 103. bearings, 104. lowermost struts, 105. hydraulic cylinders, 106. tops
Strut, 107. shafts, 108. motors, 109. sprocket wheels, 110. flanges, 111. straight slots, 112. bolts, 113. cross bars, 114. slide plates,
115. baffle, 116. counterbores, 117. half straight slots, 118. locating rods, 119. buckles, 120. casings, 121. collar flanges, 122. is curved
Folding part, 123. hold-down bolts, 124. non-slip mats.
Specific implementation mode
The present invention is described in further detail with reference to specific embodiment, but embodiments of the present invention are not limited to
This.
Embodiment 1：
As shown in Figs. 1-3, a kind of power equipment Foldable lift device, including pedestal 101 and be arranged in the pedestal
The hoistable platform 102 of 101 tops, is provided with 4 bearings 103 on the pedestal 101, on the bearing 103 respectively
It is provided with lowermost strut 104, the lowermost strut 104 is rotatably connected on the bearing 103, in the pedestal 101
On be provided with hydraulic cylinder 105,105 lower end of hydraulic cylinder is rotatably connected on 101 upper surface of pedestal, the liquid
The upper end of cylinder pressure 105 is hinged on 104 side wall of lowermost strut, the U-shaped profile of the lowermost strut 104,
The lowermost strut 104 is provided with top strut 106 far from described 103 one end of bearing, on the lowermost strut 104
Be provided with shaft 107, the top strut 106 is sleeved in the shaft 107, the top strut 106 it is transversal
Face is in hollow structure, and sprocket wheel 109 is provided in the shaft 107, is provided with and is used in 106 inside of top strut
The motor 108 for driving the sprocket wheel 109 to rotate, is provided with band-type brake, in the top strut on the motor 108
106 are provided with flange 110 far from described 107 one end of shaft, are set respectively in four angle positions of the hoistable platform 102
It is equipped with straight slot 111,111 inside of straight slot is provided with bolt 112, the logical of strip is provided on the flange 110
Hole, 112 middle part of bolt are plugged in the through-hole.
In the present embodiment, bearing is welded or is bolted on pedestal, universal wheel is set below pedestal, drags pedestal
Integrally-built movement can be realized in movement.It is placed on hoistable platform by instrument and equipment etc., starts hydraulic cylinder, make its promotion
Lowermost strut relative seat rotates, and makes lowermost strut upper end that top strut be driven to move up, stablizes it relatively in lowermost strut
Afterwards, start motor, it is made to drive the rotation of shaft opposing lower portions strut, under shaft drive, top strut is rotated relative to shaft, from
And top strut opposing lower portions strut is made to rotate, so that the hoistable platform on the inside of the strut of top is vertically moved and send equipment to specific bit
It sets.
Since lowermost strut takes the shape of the letter U structure, it can make motor that top strut be driven to relatively rotate and fold when not in use
On the inside of the U-shaped structure of lowermost strut.Compared to existing hanging device, structure of the invention is simpler, also, using under four
Portion's strut and the hydraulic cylinder being matched therewith, keep the movement of lowermost strut more controllable, and stable structure.
Embodiment 2：
In the present embodiment, more stablizes to make equipment be placed on hoistable platform, equipment is avoided to fall, it is preferable that
102 top of hoistable platform is provided with cross bar 113, and downward 90 ° of 113 both ends of cross bar bend and are detachably connected on
On the hoistable platform 102.
In order to facilitate the installation of cross bar, it is preferable that be provided with through-hole, the cross bar on the hoistable platform 102
113 both ends extend through the through-hole, on the cross bar 113 of the both sides up and down of the hoistable platform 102 respectively
It is set with locking nut.Cross bar both ends are separately fixed on the upper and lower end face of hoistable platform using locking nut.
Embodiment 3：
In the present embodiment, equipment is unloaded from hoistable platform for convenience, it is preferred that in the hoistable platform 102
Top is provided with slide plate 114, and baffle 115, the length direction of the baffle 115 are provided with above described 114 one end of slide plate
It is parallel to the length direction of the cross bar 113.Slide plate is moved to hoistable platform side, the baffle on slide plate is made to be located at cross bar
Inside is defined the baffle of slide plate using cross bar, it is avoided to fall off, and slides equipment i.e. from hoistable platform along slide plate
It can.
Embodiment 4：
Equipment is placed on slide plate for convenience, in the present embodiment, it is preferable that on 114 upper surface of slide plate
It is provided with several counterbores 116.In the present embodiment, equipment is connected on the inside of corresponding counterbore.
As shown in figure 4, it is further preferred that in the present embodiment, half straight slot 117, institute are provided on the slide plate 114
Half straight slot 117 stated is located at 116 both sides of counterbore, and half straight slot, 117 inside is provided with locating rod 118, described
118 lower end of locating rod is rotatably connected in half straight slot 117, and 118 upper end of locating rod is provided with L-shaped card
Button 119,119 threaded one end of buckle are connected with casing 120, and described sleeve pipe 120 is set with far from described 119 one end of buckle
In the locating rod 118.
By using locating rod and buckle, the equipment on slide plate is positioned, when not in use, makes buckle and locating rod
It is respectively embedded on the inside of half straight slot, when in use, relatively rotates locating rod, make locating rod relative to the rotation of half straight slot in vertical
State relatively rotates casing at this time, so that an end face of buckle is pressed together on equipment surface, can facilitate and determine equipment
Position, avoids it from falling off.
In order to facilitate the installation of casing, it is preferable that be provided with close to described 119 one end of buckle in the locating rod 118
Collar flange 121, described 120 one end of casing are bent to form bending part 122 inwardly, and the internal diameter of the bending part 122 is small
In the outer diameter of the collar flange 121.
Embodiment 5：
It is vertically moved to make the upper end of equipment opposite will not buckle, in the present embodiment, preferably in the card
Button 119 is provided with threaded hole far from described 120 one end of casing, and hold-down bolt 123 is provided in the threaded hole.It will card
Button is fitted on equipment side wall, and hold-down bolt is rotated down, hold-down bolt end is made to be pressed together on equipment upper surface, this
When can be realized upper side and side are relatively fixed.
It is further preferred that in the present embodiment, in order to avoid hold-down bolt end generates abrasion to equipment surface, preferably
Ground is provided with non-slip mat 124 in 123 end of hold-down bolt.
Embodiment 6：
A kind of power equipment Foldable lift device, including pedestal 101 and the lifting that is arranged above the pedestal 101
Platform 102 is provided with 4 bearings 103 on the pedestal 101, and lowermost strut is respectively arranged on the bearing 103
104, the lowermost strut 104 is rotatably connected on the bearing 103, and hydraulic cylinder is provided on the pedestal 101
105,105 lower end of hydraulic cylinder is rotatably connected on 101 upper surface of pedestal, the upper end of the hydraulic cylinder 105
It is hinged on 104 side wall of lowermost strut, the U-shaped profile of the lowermost strut 104, in the lowermost strut
104 are provided with top strut 106 far from described 103 one end of bearing, and shaft 107 is provided on the lowermost strut 104,
The top strut 106 is sleeved in the shaft 107, and the cross section of the top strut 106 is in hollow structure,
It is provided with sprocket wheel 109 in the shaft 107, is provided in 106 inside of top strut for driving the sprocket wheel
The motor 108 of 109 rotations, band-type brake is provided on the motor 108, is turned far from described in the top strut 106
107 one end of axis is provided with flange 110, and straight slot 111 is respectively arranged in four angle positions of the hoistable platform 102,
111 inside of straight slot is provided with bolt 112, and the through-hole of strip, the bolt are provided on the flange 110
112 middle parts are plugged in the through-hole；
Cross bar 113 is provided with above the hoistable platform 102, the downward 90 ° of bendings in 113 both ends of cross bar simultaneously can
Dismantling connection is on the hoistable platform 102；
Through-hole is provided on the hoistable platform 102,113 both ends of cross bar extend through the through-hole,
It is respectively installed with locking nut on the cross bar 113 of the both sides up and down of the hoistable platform 102；
It is provided with slide plate 114 above the hoistable platform 102, baffle is provided with above described 114 one end of slide plate
115, the length direction of the baffle 115 is parallel to the length direction of the cross bar 113；
It is provided with several counterbores 116 on 114 upper surface of slide plate；
Half straight slot 117 is provided on the slide plate 114, half straight slot 117 is located at 116 liang of the counterbore
Side is provided with locating rod 118 in half straight slot, 117 inside, and it is logical that 118 lower end of the locating rod is rotatably connected on described half
In slot 117,118 upper end of locating rod is provided with L-shaped buckle 119,119 threaded one end of buckle is connected with
Casing 120, described sleeve pipe 120 are sleeved on far from described 119 one end of buckle in the locating rod 118；
Described 119 one end of buckle is provided with collar flange 121, the casing 120 1 in the locating rod 118
End is bent to form bending part 122 inwardly, and the internal diameter of the bending part 122 is less than the outer diameter of the collar flange 121；
The buckle 119 is provided with threaded hole far from described 120 one end of casing, is provided in the threaded hole
Hold-down bolt 123；
123 end of hold-down bolt is provided with non-slip mat 124.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (1)
1. a kind of power equipment Foldable lift device, including pedestal (101) and the liter that is arranged above the pedestal (101)
Platform (102) is dropped, 4 bearings (103) are provided on the pedestal (101), are respectively set on the bearing (103)
There is lowermost strut (104), the lowermost strut (104) is rotatably connected on the bearing (103), in the pedestal
(101) hydraulic cylinder (105) is provided on, the hydraulic cylinder (105) lower end is rotatably connected on described pedestal (101) upper surface
On, the upper end of the hydraulic cylinder (105) is hinged on described lowermost strut (104) side wall, the lowermost strut (104)
U-shaped profile, described bearing (103) one end is provided with top strut in the lowermost strut (104)
(106), shaft (107) is provided on the lowermost strut (104), the top strut (106) is sleeved on described
In shaft (107), it is characterised in that：The cross section of the top strut (106) is in hollow structure, in the shaft
(107) it is provided with sprocket wheel (109) on, is provided on the inside of the top strut (106) for driving the sprocket wheel (109)
The motor (108) of rotation is provided with band-type brake on the motor (108), in the top strut (106) far from described
Shaft (107) one end is provided with flange (110), is respectively arranged in four angle positions of the hoistable platform (102) logical
Slot (111) is provided with bolt (112) on the inside of the straight slot (111), and the flange is provided with strip on (110)
Through-hole, the bolt (112) middle part are plugged in the through-hole；
Cross bar (113) is provided with above the hoistable platform (102), the downward 90 ° of bendings in the cross bar (113) both ends are simultaneously
It is detachably connected on the hoistable platform (102)；
Through-hole is provided on the hoistable platform (102), the cross bar (113) both ends extend through the through-hole,
It is respectively installed with locking nut on the cross bar (113) of the both sides up and down of the hoistable platform (102)；
It is provided with slide plate (114) above the hoistable platform (102), gear is provided with above the slide plate (114) one end
Plate (115), the length direction of the baffle (115) are parallel to the length direction of the cross bar (113)；
It is provided with several counterbores (116) on described slide plate (114) upper surface；
Half straight slot (117) is provided on the slide plate (114), half straight slot (117) is located at the counterbore (116)
Both sides are provided with locating rod (118) on the inside of half straight slot (117), and locating rod (118) lower end is rotatably connected on institute
In half straight slot (117) stated, described locating rod (118) upper end is provided with L-shaped buckle (119), the buckle
(119) threaded one end is connected with casing (120), and separate described buckle (119) one end of described sleeve pipe (120) is sleeved on described
In locating rod (118)；
Described buckle (119) one end is provided with collar flange (121), the casing in the locating rod (118)
(120) one end is bent to form bending part (122) inwardly, and the internal diameter of the bending part (122) is less than the collar flange
(121) outer diameter；
The buckle (119) is provided with threaded hole far from described casing (120) one end, is provided in the threaded hole
Hold-down bolt (123)；
Described hold-down bolt (123) end is provided with non-slip mat (124).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610607216.3A CN106219434B (en) | 2016-07-29 | 2016-07-29 | A kind of power equipment Foldable lift device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610607216.3A CN106219434B (en) | 2016-07-29 | 2016-07-29 | A kind of power equipment Foldable lift device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106219434A CN106219434A (en) | 2016-12-14 |
| CN106219434B true CN106219434B (en) | 2018-08-14 |
Family
ID=57534013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610607216.3A Active CN106219434B (en) | 2016-07-29 | 2016-07-29 | A kind of power equipment Foldable lift device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106219434B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106848920B (en) * | 2017-02-11 | 2018-10-30 | 肇庆中能创智信息科技有限公司 | A kind of electric power pylon fixing device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203255924U (en) * | 2013-05-23 | 2013-10-30 | 烟台三重技术开发有限公司 | Superposed flexible lifting mechanism of car body inspection machine |
| CN103601099A (en) * | 2013-11-22 | 2014-02-26 | 毕和军 | Folded-arm type hydraulic lifting platform |
| CN104054523A (en) * | 2014-06-30 | 2014-09-24 | 广西大学 | Connecting rod type folding lifting mechanism |
| CN204490417U (en) * | 2015-03-09 | 2015-07-22 | 中国航空工业集团公司沈阳飞机设计研究所 | A kind of single hydraulic cylinder lifting folding arm enlarger |
| CN204529219U (en) * | 2015-04-02 | 2015-08-05 | 樊薇 | A kind of Hydraulic support platform |
| CN105583819A (en) * | 2016-03-15 | 2016-05-18 | 三峡大学 | Palletizing robot with grabbing function |
-
2016
- 2016-07-29 CN CN201610607216.3A patent/CN106219434B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203255924U (en) * | 2013-05-23 | 2013-10-30 | 烟台三重技术开发有限公司 | Superposed flexible lifting mechanism of car body inspection machine |
| CN103601099A (en) * | 2013-11-22 | 2014-02-26 | 毕和军 | Folded-arm type hydraulic lifting platform |
| CN104054523A (en) * | 2014-06-30 | 2014-09-24 | 广西大学 | Connecting rod type folding lifting mechanism |
| CN204490417U (en) * | 2015-03-09 | 2015-07-22 | 中国航空工业集团公司沈阳飞机设计研究所 | A kind of single hydraulic cylinder lifting folding arm enlarger |
| CN204529219U (en) * | 2015-04-02 | 2015-08-05 | 樊薇 | A kind of Hydraulic support platform |
| CN105583819A (en) * | 2016-03-15 | 2016-05-18 | 三峡大学 | Palletizing robot with grabbing function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106219434A (en) | 2016-12-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201217617Y (en) | Mechanized charging apparatus for drilling crew | |
| CN107724955A (en) | A kind of portable borer for tunnel structure detection | |
| CN207877176U (en) | A kind of quick-lift attachreactor for road and bridge construction | |
| CN106219434B (en) | A kind of power equipment Foldable lift device | |
| CN110005181A (en) | A kind of Tunnel Repair reinforces platform and device | |
| CN102865054B (en) | Vertical pumping unit moving mechanism for well repair | |
| RU74949U1 (en) | PORTABLE DRILLING RIG | |
| CN209651838U (en) | A kind of removable fork hydraulic lifting platform | |
| CN202671124U (en) | Linkage type limiting and supporting mechanism for lifting platform | |
| CN205713002U (en) | A kind of electronic finisher building use | |
| CN106006497B (en) | A kind of power equipment Foldable lift device | |
| CN206985662U (en) | Cover plate on cable trench of transformer station opening device | |
| CN102220746A (en) | One-way wind energy water stirrer | |
| CN201212248Y (en) | Dual-purpose wheeled combination fork lifting scaffolding | |
| CN206477270U (en) | Bore arranging apparatus in a kind of self-driving type road | |
| CN202595622U (en) | Bridge overhauling device | |
| CN206554563U (en) | A kind of car parking device | |
| CN106761356B (en) | A kind of power construction overhauls apparatus | |
| CN104192757B (en) | A kind of manned rotating lifting gear | |
| CN106744480A (en) | A kind of collapsible electric power apparatus lifting device | |
| CN107100413A (en) | A kind of reliable single-pipe tower with anti-falling function | |
| CN211596337U (en) | Bridge supports adjusting device for bridge construction | |
| CN204138274U (en) | Plasterboard lifting machine | |
| CN206615649U (en) | A kind of supporting surface and the support base of supporting way linkage regulation | |
| CN207418183U (en) | A kind of rolling bed elevator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |