CN219053418U - Two-way adjustable pressing mechanism for cigarette frame welding operation - Google Patents

Two-way adjustable pressing mechanism for cigarette frame welding operation Download PDF

Info

Publication number
CN219053418U
CN219053418U CN202223576382.1U CN202223576382U CN219053418U CN 219053418 U CN219053418 U CN 219053418U CN 202223576382 U CN202223576382 U CN 202223576382U CN 219053418 U CN219053418 U CN 219053418U
Authority
CN
China
Prior art keywords
frame
pressing
supporting
rotating arm
fixed
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
Application number
CN202223576382.1U
Other languages
Chinese (zh)
Inventor
石正卫
李铁保
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Luoyang Dexiang Cabinet Industry Co ltd
Original Assignee
Luoyang Dexiang Cabinet Industry Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Luoyang Dexiang Cabinet Industry Co ltd filed Critical Luoyang Dexiang Cabinet Industry Co ltd
Priority to CN202223576382.1U priority Critical patent/CN219053418U/en
Application granted granted Critical
Publication of CN219053418U publication Critical patent/CN219053418U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Butt Welding And Welding Of Specific Article (AREA)

Abstract

The utility model relates to the field of auxiliary tools of cigarette frame welding equipment, in particular to a bidirectional adjustable pressing mechanism for cigarette frame welding operation, which comprises a supporting bottom plate, a spacing adjusting assembly, a first moving part, a second moving part, a first pressing part and a second pressing part, wherein the supporting bottom plate is arranged on a peripheral frame, the spacing adjusting assembly is arranged at the upper part of the supporting bottom plate and is fixedly arranged with the supporting bottom plate, and the first moving part and the second moving part are arranged at the upper part of the spacing adjusting assembly.

Description

Two-way adjustable pressing mechanism for cigarette frame welding operation
Technical Field
The utility model relates to the field of auxiliary tools of cigarette frame welding equipment, in particular to a bidirectional adjustable pressing mechanism for cigarette frame welding operation.
Background
The tobacco frame for the tobacco equipment is a special tool for containing the original tobacco packages, is very convenient for the production operation of tobacco, is convenient to carry and can save the stock area and increase the stock quantity in the production and use process, and on the other hand, the tobacco frames are convenient to put in the production process, so that the operation procedure is simplified, and the labor capacity of workers is reduced. In the whole process of production and transportation, after the cigarette frames can be stored for one time, the cigarette frames can be stacked for inventory management, and only the storage function is realized after the cigarettes are delivered out of the warehouse. When tobacco equipment cigarette frame is producing and processing, mainly carry out welding operation to it through welding equipment, when the welding, in order to guarantee the stability of the welded point position of the frame body, need compress tightly the location to the frame body through location frock mechanism, the frame body on the current welding equipment compresses tightly positioning mechanism and adopts nut clamp plate mechanism to compress tightly the location, has following defect when concrete operation uses:
1. the frame body compressing and positioning mechanism on the existing welding equipment needs an operator to carry out screwing and unscrewing operations through tools such as a spanner and the like, and the labor capacity of the worker is large;
2. the frame body compressing and positioning mechanism on the existing welding equipment cannot realize compressing interval adjustment, and the whole application range of the tool is greatly limited.
Disclosure of Invention
The utility model aims to provide a bidirectional adjustable pressing mechanism for welding a smoke frame, which not only can realize the rapid pressing operation on a frame body, but also can realize the adjustment of the spacing between the pressing structures through the adjustment operation of an adjustment structure, thereby greatly increasing the application range of the whole clamping and positioning tool;
in order to achieve the above purpose, the present utility model adopts the following technical scheme:
the utility model provides a hold-down mechanism with adjustable cigarette frame welding operation is with two-way, includes, supporting baseplate, interval adjustment subassembly, first remove portion, second remove portion, first close piece and second close piece, supporting baseplate install in peripheral hardware frame, install on the upper portion of supporting baseplate and arrange interval adjustment subassembly, interval adjustment subassembly and supporting baseplate tightly install together, install first remove portion, second remove portion on interval adjustment subassembly's upper portion, first remove portion, second remove portion can realize displacement adjustment under interval adjustment subassembly's adjustment drive, first close piece install on first remove portion and link to each other with first remove portion and install together, second close piece install on second remove portion and link to each other with second remove portion and install together.
The interval adjustment subassembly include, left side mounting bracket, right side mounting bracket, fixed connection frame, rotatory lead screw and direction slide rail, the bottom of fixed connection frame install on supporting baseplate, the left side mounting bracket install at one side end position of fixed connection frame and link to each other with fixed connection frame fixed mounting, the right side mounting bracket is installed at the opposite side end position of fixed connection frame and is linked together with fixed connection frame fixed mounting, install supporting bearing on left side mounting bracket and right side mounting bracket, install on supporting bearing the both sides of rotatory lead screw, the direction slide rail pass through fastening bolt and install on fixed connection frame upper portion.
The structure of the first moving part is the same as that of the second moving part, the first moving part and the second moving part comprise a moving support plate, a first sliding block, a second sliding block and a driving screw cap, the first sliding block and the second sliding block are clamped on a guide sliding rail and are in damping sliding contact with the guide sliding rail, the moving support plate is installed on the upper parts of the first sliding block and the second sliding block, the moving support plate is fixedly installed with the first sliding block and the second sliding block through fastening bolts, the driving screw cap is installed at the bottom of the moving support plate, a threaded through hole is machined in the driving screw cap, and the driving screw cap is installed on a rotating screw rod in a threaded fit mode.
The directions of the internal threads of the threaded through holes formed in the driving nuts in the first moving part and the second moving part are opposite.
The structure of the first pressing part and the structure of the second pressing part are the same, the first pressing part and the second pressing part comprise a bottom supporting block, a fixed supporting frame, a pressing driving arm and a pressing executing part, the bottom supporting block is arranged on a movable supporting plate through a fastening bolt, the fixed supporting frame is arranged on the upper portion of the bottom supporting block, the lower part of the pressing driving arm is arranged on the fixed supporting frame and is hinged with the fixed supporting frame, and one side end of the pressing executing part is arranged on the fixed supporting frame and is hinged with the fixed supporting frame.
The compressing driving arm comprises a compressing handle, a first rotating arm and a second rotating arm, the structures of the first rotating arm and the second rotating arm are the same, the lower sides of the first rotating arm and the second rotating arm are hinged to the fixed supporting frame, the compressing handle, the first rotating arm and the second rotating arm are installed together, an installation groove is formed between the first rotating arm and the second rotating arm, and a limiting block is installed in the installation groove.
The compressing executing part comprises a mounting suspension, a lock nut, a movable clamp, a fixing clamp, a compressing rod and a compressing head, wherein one side of the mounting suspension is hinged to the fixing support frame, an adjusting mounting groove is formed in the mounting suspension, the compressing rod penetrates through the adjusting mounting groove, the fixing clamp is mounted on the lower side of the compressing rod and fixedly connected with the compressing rod, the movable clamp is mounted on the compressing rod and compresses the mounting suspension through the lock nut, and the compressing head is mounted on the bottom of the compressing rod.
The beneficial effects of the utility model are as follows: the bidirectional adjustable compressing mechanism for the cigarette frame welding operation is scientific in overall structural design and convenient to install, operate and use, and can realize the compressing and positioning of the frame body without screwing and unscrewing the first compressing piece and the second compressing piece through the cooperative action of the interval adjusting component, the first moving part, the second moving part, the first compressing piece, the second compressing piece and other component parts when the bidirectional adjustable compressing mechanism is specifically operated and used, so that the bidirectional adjustable compressing mechanism can be suitable for compressing and positioning frame bodies with different lengths, the compressing application range of compressing and positioning the frame body is greatly improved, and meanwhile, the compressing and positioning of the frame body can be realized without screwing and unscrewing the first compressing piece and the second compressing piece through a tool during compressing operation, and the efficient compressing operation effect is achieved.
Drawings
FIG. 1 is a schematic view of the overall installation structure of the bi-directional adjustable hold-down mechanism of the present utility model;
FIG. 2 is a schematic top view of a spacing adjustment assembly of the present utility model;
FIG. 3 is a schematic diagram of the first moving part and the second moving part according to the present utility model;
FIG. 4 is a schematic view of the structure of the first and second engaging members according to the present utility model;
FIG. 5 is a schematic view of the structure of the compression drive arm of the present utility model;
FIG. 6 is a schematic view of the structure of the pressing executing section in the present utility model;
the reference numerals in the figures are: 1-supporting bottom plate, 2-interval adjustment subassembly, 3-first movable part, 4-second movable part, 5-first clamp, 6-second clamp, 21-left side mounting bracket, 22-right side mounting bracket, 23-fixed link, 24-rotatory lead screw, 25-direction slide rail, 31-movable backup pad, 32-first slider, 33-second slider, 34-drive nut, 51-bottom support piece, 52-fixed support frame, 53-compress driving arm, 54-compress execution portion, 531-compress handle, 532-first rotation, 533-second swinging arm, 541-mount suspension, 542-lock nut, 543-movable clamp, 544-fixed clamp, 545-compress pole, 546-compress head.
Detailed Description
In order to make the technical solution of the present utility model better understood by those skilled in the art, the present utility model is further described in detail below with reference to the drawings and the detailed description, and it should be noted that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly or indirectly connected to the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The terms "left" and "right" used in this specification to denote orientations are each referenced to a particular structure shown in the drawings, and are not to be construed as limiting the structure.
Specific example 1: as shown in fig. 1 and 2 of the specification of the present utility model, the bidirectional adjustable compressing mechanism for welding a smoke frame provided by the present utility model mainly includes a supporting base plate 1, a spacing adjusting component 2, a first moving part 3, a second moving part 4, a first compressing member 5 and a second compressing member 6, wherein the supporting base plate 1 for mounting and supporting the spacing adjusting component 2 is mounted on a peripheral frame, the spacing adjusting component 2 capable of realizing spacing adjustment between the first moving part 3 and the second moving part 4 is mounted on the upper part of the supporting base plate 1, the spacing adjusting component 2 is mounted together with the supporting base plate 1 in a fastening manner, the first moving part 3 and the second moving part 4 for bearing and supporting the first compressing member 5 and the second compressing member 6 are mounted on the upper part of the spacing adjusting component 2, the first compressing member 5 for compressing a frame body is mounted on the first moving part 3 and connected with the first moving part 3 and the second compressing member 4 for compressing the frame body is mounted on the second frame body 4 under the driving of the spacing adjusting component 2.
As shown in fig. 2 of the specification of the present utility model, the interval adjusting assembly 2 for adjusting the interval between the first moving part 3 and the second moving part 4 comprises a left mounting frame 21, a right mounting frame 22, a fixed connecting frame 23, a rotating screw 24 and a guiding sliding rail 25, wherein the fixed connecting frame 23 is used for mounting and connecting the left mounting frame 21 and the right mounting frame 22 together, the bottom of the fixed connecting frame 23 is mounted on the supporting base plate 1, the left mounting frame 21 is mounted at one side end part of the fixed connecting frame 23 and fixedly connected with the fixed connecting frame 23, the right mounting frame 22 is mounted at the other side end part of the fixed connecting frame 23 and fixedly connected with the fixed connecting frame 23, supporting bearings for supporting the rotating screw 24 are mounted on the left mounting frame 21 and the right mounting frame 22, both sides of the rotating screw 24 are mounted on the supporting bearings, and the guiding sliding rail 25 is mounted at the upper part of the fixed connecting frame 23 through fastening bolts.
As shown in fig. 3 of the present disclosure, the first moving part 3 and the second moving part 4 for driving the first compressing element 5 and the second compressing element 6 to adjust the distance have the same structure, and the first moving part and the second moving part include a moving support plate 31, a first sliding block 32, a second sliding block 33 and a driving nut 34, wherein the first sliding block 32 and the second sliding block 33 are clamped on the guiding sliding rail 25 and are in damping sliding contact with the guiding sliding rail 25, the moving support plate 31 for supporting and bearing the compressing element is installed at the upper parts of the first sliding block 32 and the second sliding block 33, the moving support plate 31 is fixedly installed with the first sliding block 32 and the second sliding block 33 through fastening bolts, the driving nut 34 is installed at the bottom of the moving support plate 31, a threaded through hole is processed on the driving nut 34, and the driving nut 34 is installed on the rotating screw rod 24 through a threaded fit mode.
As shown in fig. 4 of the specification of the present utility model, the first compressing element 5 and the second compressing element 6 for compressing the smoke frame component structure have the same structure, and the two structures comprise a bottom supporting block 51, a fixed supporting frame 52, a compressing driving arm 53 and a compressing executing part 54, wherein the bottom supporting block 51 is used for installing and supporting the fixed supporting frame 52, the bottom supporting block 51 is installed on the movable supporting plate 31 through a fastening bolt, the fixed supporting frame 52 is installed at the upper part of the bottom supporting block 51, the lower part of the compressing driving arm 53 for performing the lower part of the compressing executing part 54 is arranged on the fixed supporting frame 52 and hinged with the fixed supporting frame 52, and one side end of the compressing executing part 54 for performing the compressing operation is arranged on the fixed supporting frame 52 and hinged with the fixed supporting frame 52.
As shown in fig. 5 of the present disclosure, the pressing driving arm 53 for pressing and limiting the pressing executing portion 54 includes a pressing handle 531, a first rotating arm 532 and a second rotating arm 533, wherein the first rotating arm 532 and the second rotating arm 533 have the same structure, the lower sides of the first rotating arm 532 and the second rotating arm 533 are hinged on the fixed supporting frame 52, the pressing handle 531, the first rotating arm 532 and the second rotating arm 533 are mounted together, an installation groove is formed between the first rotating arm 532 and the second rotating arm 533, a limiting block is mounted in the installation groove, and the limiting block can realize the limiting operation of the pressing executing portion 54.
As shown in fig. 6 of the specification of the present utility model, the compressing executing part 54 for executing the compressing operation on the frame body includes a mounting suspension 541, a locking nut 542, a movable clip 543, a fixing clip 544, a compressing rod 545 and a compressing head 546, wherein the mounting suspension 541 is mainly used for bearing the compressing rod 545 and the compressing head 546, one side of the mounting suspension 541 is hinged on the fixing support 52, an adjusting mounting groove for adjusting and mounting the compressing rod 545 is formed in the mounting suspension 541, the compressing rod 545 penetrates through the adjusting mounting groove and can be adjusted in position in the adjusting mounting groove according to the requirement, the fixing clip 544 is mounted on the lower side of the compressing rod 545 and fixedly connected with the compressing rod 545, the movable clip 543 is sleeved on the compressing rod 545 and compressed on the mounting suspension 541 through the locking nut 542, and the compressing head 546 directly contacting and compressing the frame body is mounted on the bottom of the compressing rod 545.
The working principle and working process of the bidirectional adjustable pressing mechanism for the cigarette frame welding operation in specific installation operation are as follows:
1. the installation process comprises the following steps: firstly, an operator can install the supporting base plate 1 on a welding platform of the smoke frame welding equipment, install the interval adjusting assembly 2 on the supporting base plate 1 through a fastening bolt, install the first moving part 3 and the second moving part 4 on the interval adjusting assembly 2, ensure that sliding blocks in the first moving part 3 and the second moving part 4 are clamped on the guide sliding rail 25, after the installation step is finished, the operator can install the first pressing element 5 for executing the pressing operation on the first moving part 3 through the fastening bolt, install the second pressing element 6 for executing the pressing operation on the second moving part 4 through the fastening bolt, and install an adjusting hand wheel at the outer end part of the rotating screw rod 24, so far, the installation process stage of the bidirectional adjustable pressing mechanism for the smoke frame welding operation is finished;
2. operational use phase procedure: firstly, an operator can adjust the interval distance between the first pressing piece 5 and the second pressing piece 6 according to the length of the frame body which is specifically required to be pressed, the specific adjustment can be divided into two adjustment processes of relative direction and opposite direction, when the relative direction adjustment is carried out on the first compression fitting 5 and the second compression fitting 6, the operator can rotate the adjusting hand wheel clockwise, at this time, the adjusting hand wheel drives the rotating screw rod 24 to rotate clockwise, under the action of the pushing force of the screw, the first moving part 3 and the second moving part 4 move relatively, at this time, the distance between the first and second pressing members 5 and 6 installed on both the first and second moving parts 3 and 4 becomes smaller, when the first pressing part 5 and the second pressing part 6 are adjusted in opposite directions, an operator can rotate the adjusting hand wheel anticlockwise, at the moment, the adjusting hand wheel drives the rotating screw rod 24 to rotate anticlockwise, under the action of the pushing force of the screw, the first moving part 3 and the second moving part 4 move in opposite directions, and at this time, the distance between the first and second pressing members 5 and 6 installed on both the first and second moving parts 3 and 4 becomes larger, after the adjustment of the distance is completed, an operator can place the frame body to be pressed and positioned on the bottom supporting blocks 51 of the first pressing member 5 and the second pressing member 6, rotate the pressing driving arm 53 to press the pressing head 546 on the frame body, and finally rotate the pressing executing portion 54 to enable the pressing executing portion 54 to limit the mounting suspension 541 through the limiting block in the mounting groove formed on the pressing executing portion 54, so that the pressing operation is completed.

Claims (7)

1. The utility model provides a hold-down mechanism with adjustable cigarette frame welding operation is with two-way, its characterized in that, including supporting baseplate (1), interval adjustment subassembly (2), first movable part (3), second movable part (4), first close piece (5) and second close piece (6), supporting baseplate (1) install in the peripheral hardware frame, install on the upper portion of supporting baseplate (1) and arrange interval adjustment subassembly (2), interval adjustment subassembly (2) are in the same place with supporting baseplate (1) fastening installation, install first movable part (3), second movable part (4) on the upper portion of interval adjustment subassembly (2), first movable part (3), second movable part (4) can realize displacement adjustment under the adjustment drive of interval adjustment subassembly (2), first close piece (5) are installed on first movable part (3) and link to each other together with first movable part (3), second close piece (6) are installed on second movable part (4) and are in the same place with second movable part (4) linking to each other.
2. The bidirectional adjustable pressing mechanism for welding operation of a smoke frame according to claim 1, wherein the distance adjusting assembly (2) comprises a left mounting frame (21), a right mounting frame (22), a fixed connecting frame (23), a rotary screw rod (24) and a guide sliding rail (25), wherein the bottom of the fixed connecting frame (23) is mounted on a supporting bottom plate (1), the left mounting frame (21) is mounted at one side end part of the fixed connecting frame (23), the right mounting frame (22) is mounted at the other side end part of the fixed connecting frame (23), supporting bearings are mounted on the left mounting frame (21) and the right mounting frame (22), two sides of the rotary screw rod (24) are mounted on the supporting bearings, and the guide sliding rail (25) is mounted on the upper part of the fixed connecting frame (23) through fastening bolts.
3. The bidirectional adjustable pressing mechanism for the cigarette frame welding operation according to claim 2, wherein the first moving part (3) and the second moving part (4) have the same structure, and comprise a moving support plate (31), a first sliding block (32), a second sliding block (33) and a driving screw cap (34), wherein the first sliding block (32) and the second sliding block (33) are clamped on a guide sliding rail (25), the moving support plate (31) is arranged on the upper parts of the first sliding block (32) and the second sliding block (33), the driving screw cap (34) is arranged at the bottom of the moving support plate (31), a threaded through hole is formed in the driving screw cap (34), and the driving screw cap (34) is arranged on a rotary screw rod (24) in a threaded fit mode.
4. A bidirectional adjustable pressing mechanism for welding a cigarette frame according to claim 3, wherein the directions of internal threads of threaded through holes formed in driving nuts (34) in the first moving part (3) and the second moving part (4) are opposite.
5. A bidirectional adjustable pressing mechanism for welding a smoke frame according to claim 3, wherein the first pressing member (5) and the second pressing member (6) have the same structure, and comprise a bottom supporting block (51), a fixed supporting frame (52), a pressing driving arm (53) and a pressing executing part (54), wherein the bottom supporting block (51) is installed on a movable supporting plate (31) through a fastening bolt, the fixed supporting frame (52) is installed on the upper portion of the bottom supporting block (51), the lower side of the pressing driving arm (53) is hinged with the fixed supporting frame (52), and one side end of the pressing executing part (54) is hinged with the fixed supporting frame (52).
6. The bidirectional adjustable pressing mechanism for welding fume frames according to claim 5, wherein the pressing driving arm (53) comprises a pressing handle (531), a first rotating arm (532) and a second rotating arm (533), the first rotating arm (532) and the second rotating arm (533) have the same structure, the lower sides of the first rotating arm (532) and the second rotating arm (533) are hinged on the fixed supporting frame (52), the pressing handle (531) is installed with the first rotating arm (532) and the second rotating arm (533), an installation groove is formed between the first rotating arm (532) and the second rotating arm (533), and a limiting block is installed in the installation groove.
7. The bidirectional adjustable pressing mechanism for the cigarette frame welding operation according to claim 5, wherein the pressing executing portion (54) comprises a mounting suspension (541), a locking nut (542), a movable clamp (543), a fixed clamp (544), a pressing rod (545) and a pressing head (546), one side of the mounting suspension (541) is hinged to the fixed support frame (52), an adjusting mounting groove is formed in the mounting suspension (541), the pressing rod (545) penetrates through the adjusting mounting groove, the fixed clamp (544) is mounted on the lower side portion of the pressing rod (545), the movable clamp (543) is sleeved on the pressing rod (545) and is pressed on the mounting suspension (541) through the locking nut (542), and the pressing head (546) is mounted on the bottom portion of the pressing rod (545).
CN202223576382.1U 2022-12-31 2022-12-31 Two-way adjustable pressing mechanism for cigarette frame welding operation Active CN219053418U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202223576382.1U CN219053418U (en) 2022-12-31 2022-12-31 Two-way adjustable pressing mechanism for cigarette frame welding operation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202223576382.1U CN219053418U (en) 2022-12-31 2022-12-31 Two-way adjustable pressing mechanism for cigarette frame welding operation

Publications (1)

Publication Number Publication Date
CN219053418U true CN219053418U (en) 2023-05-23

Family

ID=86347658

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202223576382.1U Active CN219053418U (en) 2022-12-31 2022-12-31 Two-way adjustable pressing mechanism for cigarette frame welding operation

Country Status (1)

Country Link
CN (1) CN219053418U (en)

Similar Documents

Publication Publication Date Title
CN212095065U (en) Welding assembly tool
CN213080587U (en) Circular multi-angle adjustable welding set
CN219053418U (en) Two-way adjustable pressing mechanism for cigarette frame welding operation
CN201960301U (en) Fast compactor
CN211637944U (en) Tubular product piercing press convenient to dismouting
CN108044272B (en) A kind of track trolley manual positioning compression self-locking mechanism
CN2887522Y (en) Band sawing machine adjuvant clamp device for machining little things
CN213858050U (en) Clamping device for machine tool workbench and machine tool body
CN213003918U (en) Fixing device convenient to cutting of car abnormal shape work piece
CN112517991A (en) Flywheel inclined hole machining device
CN219274216U (en) Punching device for punching automobile parts
CN219746018U (en) Pore-forming mechanism with adjustable cigarette frame curb plate is with two side intervals
CN220922468U (en) Multifunctional mechanical arm of industrial robot
CN219336221U (en) High-efficient cutting equipment of aluminium alloy
CN219275704U (en) Air source piece assembling equipment
CN220679432U (en) Workpiece inclined hole drilling device
CN218746304U (en) Drilling processing tool
CN216327794U (en) Multi-surface machining and connecting tool
CN219503891U (en) Linear cutting positioning tool
CN215090890U (en) Flywheel inclined hole machining device
CN217669009U (en) Anti-shearing nut processing clamping device
CN220028394U (en) Servo machine case tool equipment that punches a hole
CN209021636U (en) Self-locking sectional bar clamper
CN219338668U (en) Door plant assembly bed-jig
CN213560752U (en) Battery case welding jig

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant