CN214022502U - High-compatibility vehicle-mounted glass pickling positioning jig - Google Patents

High-compatibility vehicle-mounted glass pickling positioning jig Download PDF

Info

Publication number
CN214022502U
CN214022502U CN202023249715.0U CN202023249715U CN214022502U CN 214022502 U CN214022502 U CN 214022502U CN 202023249715 U CN202023249715 U CN 202023249715U CN 214022502 U CN214022502 U CN 214022502U
Authority
CN
China
Prior art keywords
mounting holes
support
vehicle
mounted glass
positioning jig
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
CN202023249715.0U
Other languages
Chinese (zh)
Inventor
王庆芳
刘育维
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.)
Zhejiang Chenheng Technology Co ltd
Original Assignee
Zhejiang Chenheng Technology 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 Zhejiang Chenheng Technology Co ltd filed Critical Zhejiang Chenheng Technology Co ltd
Priority to CN202023249715.0U priority Critical patent/CN214022502U/en
Application granted granted Critical
Publication of CN214022502U publication Critical patent/CN214022502U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Jigs For Machine Tools (AREA)

Abstract

A high-compatibility vehicle-mounted glass pickling positioning jig comprises a first support, a support column, a bearing assembly, a second support and a clamping assembly. The first bracket comprises a body, a first mounting hole and a second mounting hole. The pillar is provided with a third mounting hole, and the second support comprises a fifth mounting hole and a sixth mounting hole. The first bracket and the second bracket are connected with the third mounting holes with different heights of the support column, so that the adjustment in the vertical direction is realized. And the both ends of carrier assembly and centre gripping subassembly respectively with first support and second support can dismantle the connection to realize the ascending regulation of horizontal direction, and then make the tool all can adjust in perpendicular and horizontal direction, make the tool can be applicable to the on-vehicle glass of different specifications, improve the compatibility of tool. In addition, the number of the clamping assemblies and the number of the bearing assemblies are increased, the positions of the clamping assemblies and the bearing assemblies are arranged, so that the pickling treatment of the vehicle-mounted glass with different sizes can be completed simultaneously, and the compatibility is further improved.

Description

High-compatibility vehicle-mounted glass pickling positioning jig
Technical Field
The utility model relates to an on-vehicle glass apron technical field, in particular to high-compatibility on-vehicle glass pickling positioning jig.
Background
In the processing process of the vehicle-mounted glass cover plate, an acid washing process is often adopted for polishing or cleaning, so that a jig is needed for positioning and fixing glass, and the acid washing or cleaning is facilitated.
The size of current tool mostly matches with the size that needs abluent on-vehicle glass, but on-vehicle glass's specification has a lot, and the size is all inequality, consequently needs the multiple tool of preparation, leads to manufacturing cost to uprise. And the specification of tool can not adjust mostly, leads to wasing vehicle-mounted glass simultaneously, can not multiple vehicle-mounted glass washs simultaneously to lead to the cleaning efficiency low.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a high compatibility vehicle-mounted glass pickling positioning jig to solve above-mentioned technical problem.
The utility model provides a high compatibility vehicle-mounted glass pickling positioning jig, its includes a first support, four settings are in pillar on the first support, at least two settings are in bearing component on the first support, one setting is in second support on the pillar, and at least two settings are in centre gripping subassembly on the second support. The first support comprises a body, a plurality of first mounting holes respectively formed in four corners of the body, and a plurality of second mounting holes divided into two rows and respectively formed in two sides of the body. The first mounting holes are respectively arranged on four corners of the body in pairs and are located on two side faces, adjacent to and perpendicular to the body, of the body, and the second mounting holes in each row correspond to each other in position. Four the setting respectively of pillar is in on four angles of body inboard, each the lateral surface of pillar with the medial surface laminating at four angles of body. The support is provided with a plurality of third mounting holes which are divided into two rows and are arranged on two outer side surfaces of the support. The two ends of the bearing assemblies are detachably connected with the second mounting holes respectively, and the arrangement direction of the two bearing assemblies is parallel to the arrangement direction of the second mounting holes in each row. The second support has the same structure as the first support and also comprises a plurality of fifth mounting holes which are respectively arranged at four corners of the second support and a plurality of sixth mounting holes which are divided into two rows and are arranged at two sides of the second support. The two ends of the clamping assemblies are detachably connected with the sixth mounting holes respectively, and the arrangement directions of the two clamping assemblies are parallel to the arrangement direction of the sixth mounting holes in each row.
Further, the body is of a rectangular structure, the cross section of the body is L-shaped, and the interior of the body is hollow.
Further, the central axes of the two first mounting holes arranged at the same corner of the body are perpendicular to each other.
Further, adjacent second mounting holes are arranged at intervals, and the interval distances are equal.
Further, the centers of the third mounting holes in each row are on a straight line, and the straight line is perpendicular to the plane of the first support. And each adjacent third mounting hole is arranged at intervals, and the interval distance is equal.
Furthermore, the bearing assembly comprises a first bearing plate, two fourth mounting holes and a plurality of first limiting blocks, wherein the two ends of the first bearing plate are arranged on the first support respectively, the two fourth mounting holes are arranged at the two ends of the first bearing plate respectively, and the first limiting blocks are arranged on the first bearing plate at intervals. The distance between every two adjacent first limiting blocks is equal.
Furthermore, the clamping assembly comprises a second bearing plate, two seventh mounting holes, a sliding plate, at least two notches, at least two locking pieces and a plurality of second limiting pieces, wherein the two ends of the second bearing plate are arranged on the second support respectively, the seventh mounting holes are formed in the two ends of the second bearing plate, the sliding plate is arranged on the second bearing plate in a sliding mode, the at least two notches are arranged on the sliding plate, the at least two locking pieces are inserted into the notches, and the second limiting pieces are arranged on the sliding plate in a multiple mode.
Further, the setting direction of the notch is parallel to the arrangement direction of the two clamping assemblies.
Furthermore, the locking piece is arranged in the notch and penetrates through the notch and the second bearing plate and locks the sliding plate.
Compared with the prior art, the utility model provides a pair of high compatibility vehicle-mounted glass pickling positioning jig is through inciting somebody to action first, second support first, fifth mounting hole with the pillar co-altitude the connection can be dismantled to the third mounting hole, thereby realizes the carrier assembly with the ascending regulation of centre gripping subassembly vertical direction. And the two ends of the bearing component are respectively detachably connected with the second mounting holes of the first support, and the two ends of the clamping component are respectively detachably connected with the sixth mounting holes of the second support, so that the bearing component and the clamping component can be adjusted in the horizontal direction, the jig can be adjusted in the vertical direction and the horizontal direction, the jig can be suitable for vehicle-mounted glass with different specifications, and the compatibility of the jig is improved. When different sizes of vehicle-mounted glass need be pickled simultaneously, the number of the clamping assemblies and the number of the bearing assemblies are increased and are respectively arranged in different positions of the first support and the second support, so that the different sizes of vehicle-mounted glass are not interfered with each other when being pickled simultaneously, the pickling treatment of the different sizes of vehicle-mounted glass is completed simultaneously, and the compatibility and the pickling efficiency of the jig are further improved.
Drawings
Fig. 1 is a schematic structural view of a high-compatibility vehicle-mounted glass pickling positioning jig provided by the utility model.
Fig. 2 is a schematic structural view of another angle of the high-compatibility vehicle-mounted glass pickling positioning fixture shown in fig. 1.
Detailed Description
Specific examples of the present invention will be described in further detail below. It should be understood that the description herein of embodiments of the invention is not intended to limit the scope of the invention.
As shown in fig. 1 to fig. 2, it is a schematic structural diagram of a high-compatibility vehicle-mounted glass pickling positioning fixture provided by the present invention. The high-compatibility vehicle-mounted glass pickling positioning jig comprises a first support 10, four support columns 20 arranged on the first support 10, at least two bearing assemblies 30 arranged on the first support 10, a second support 40 arranged on the support columns 20, and at least two clamping assemblies 50 arranged on the second support 40. It is conceivable that the high-compatibility vehicle-mounted glass pickling positioning fixture further includes other functional modules, such as fixing components, assembling components, and the like, which are well known to those skilled in the art and will not be described herein again.
The first bracket 10 includes a body 11, a plurality of first mounting holes 12 respectively disposed at four corners of the body 11, and a plurality of second mounting holes 13 divided into two rows disposed at two sides of the body 11. The body 11 is of a rectangular structure, and the cross section of the body is L-shaped. The body 11 is used for carrying and arranging the pillar 20 and the carrying assembly 30. The body 11 is hollow inside and is used for accommodating vehicle-mounted glass to be pickled. The first mounting holes 12 are respectively arranged on four corners of the body 11 two by two and located on two adjacent and mutually perpendicular side surfaces of the body 11, central axes of the two first mounting holes 12 arranged on the same corner of the body 11 are mutually perpendicular so as to be conveniently connected with the support column 20, and the first mounting holes 12 are used for being connected with the support column 20. The second mounting holes 13 are respectively divided into two rows and arranged on two sides of the body 11, the positions of the second mounting holes 13 in each row correspond to each other, the adjacent second mounting holes 13 are arranged at intervals, the interval distances are equal, and the second mounting holes 13 are used for being connected with the bearing assembly 30, so that the bearing assembly 30 can be adjusted through the second mounting holes 13.
Four the setting of pillar 20 is in respectively on four angles of body 11 inboard, pillar 20's cross section is L shape and four pillar 20's lateral surface respectively with the medial surface laminating at four angles of body 11. In order to provide the first and second brackets 10 and 40, the pillar 20 is provided with a plurality of third mounting holes 21 arranged in a plurality of rows on the outer side surface of the pillar 20. The centers of the third mounting holes 21 in each row are on a straight line, the straight line is perpendicular to the plane of the first bracket 10, and every two adjacent third mounting holes 21 are arranged at intervals and are spaced at equal intervals. The first bracket 10 and the pillar 20 are detachably connected by providing a fastening member (not shown), such as a nut, a knob, etc., in the first and third mounting holes 12 and 21, and it is contemplated that the fastening member should be of the prior art and will not be described herein. Since the plurality of third mounting holes 21 are arranged on the outer side surface of the pillar 20 in multiple rows, the first mounting hole 12 of the first bracket 10 can be connected with the third mounting holes 21 of the four pillars 20 at different heights, so that the first bracket 10 and the bearing component 30 arranged on the first bracket 10 are located at different heights to bear vehicle-mounted glasses with different sizes, and the compatibility of the jig is improved.
Each of the bearing assemblies 30 includes a first bearing plate 31 having two ends respectively disposed on the first bracket 10, two fourth mounting holes 32 respectively disposed at two ends of the first bearing plate 31, and a plurality of first stoppers 33 disposed on the first bearing plate 31 at intervals. The arrangement direction of the two bearing components 30 is parallel to the arrangement direction of the second mounting holes 13 in each row, the first bearing plate 31 is used for arranging the fourth mounting holes 32 and the first limiting blocks 33 and bearing a glass cover plate, and in order to enable the two ends of the first bearing plate 31 to be connected with the first support 10, the two ends of the first bearing plate 31 are respectively provided with two fourth mounting holes 32. The central axis of the fourth mounting hole 32 coincides with the central axis of the second mounting hole 13, and the fastening member is inserted into the fourth and second mounting holes 32 and 13, so that the first bearing plate 31 and the first bracket 10 can be detachably connected. The first limit blocks 33 are arranged on the first bearing plate 31 at intervals, and the distance between every two adjacent first limit blocks 33 is equal. The vehicle-mounted glass is vertically arranged between two adjacent first limit blocks 33, and the first limit blocks 33 are used for limiting the position of the vehicle-mounted glass and spacing the vehicle-mounted glass, so that the adjacent vehicle-mounted glass is prevented from being influenced by each other in the pickling process. The two bearing assemblies 30 are arranged, so that the vehicle glass can be arranged on the bearing assemblies 30 more stably. Since the arrangement direction of the two bearing assemblies 30 is parallel to the arrangement direction of the second mounting holes 13 of each row, and the two ends of the bearing assemblies 30 are detachably connected with the second mounting holes 13 of the first bracket 10, the two bearing assemblies 30 can be located at different positions in the horizontal direction of the first bracket 10 by connecting the fourth mounting holes 32 at the two ends of the first bearing plate 31 with the second mounting holes 13 at different positions, so that vehicle glasses with different sizes can be placed on the two bearing assemblies 30.
The second bracket 40 has the same structure, size and composition as the first bracket 10, the second bracket 40 is located between the clamping component 50 and the carrying component 30, and the structure of the second bracket 40 is not described herein again. The second bracket 40 is also provided with a plurality of fifth mounting holes 41 respectively disposed at four corners of the second bracket 40, and a plurality of sixth mounting holes 42 divided into two rows disposed at two sides of the second bracket 40. The fifth mounting hole 41 of the second bracket 40 can be connected with the third mounting holes 21 of the pillars 20 at different heights, so that the second bracket 40 and the clamping assembly 50 arranged on the second bracket 40 are located at different heights, the clamping assembly 50 can clamp vehicle-mounted glasses with different sizes, and the compatibility of the jig is improved. The sixth mounting hole 42 is used for connecting the clamping assembly 50.
Each of the clamping assemblies 50 includes a second bearing plate 51 having two ends respectively disposed on the second bracket 40, two seventh mounting holes 52 disposed on two ends of the second bearing plate 51, a sliding plate 53 slidably disposed on the second bearing plate 41, at least two notches 54 disposed on the sliding plate 53, at least two locking members 55 inserted in the notches 54, and a plurality of second limiting members 56 disposed on the sliding plate 53. The arrangement direction of the two clamping assemblies 50 is parallel to the arrangement direction of the sixth mounting holes 42 of each row.
The second bearing plate 51 is configured to be provided with the seventh mounting holes 52 and the sliding plate 53, and in order to enable two ends of the second bearing plate 51 to be connected to the second bracket 40, two seventh mounting holes 52 are respectively disposed at two ends of the second bearing plate 51. The central axis of the seventh mounting hole 52 coincides with the central axis of the sixth mounting hole 42, and the fastening member is inserted into the sixth and seventh mounting holes 42 and 52, so that the second carrier plate 51 and the second bracket 40 are detachably connected. The sliding plate 53 is slidably disposed on the second loading plate 51, the sliding plate is located between the second loading plate 51 and the locking member 55, the sliding plate 53 is provided with two notches 54, the notches 54 are disposed in a direction parallel to the arrangement direction of the two clamping assemblies 50, so that the sliding direction of the sliding plate 53 is parallel to the arrangement direction of the clamping assemblies 50. The locking member 55 is disposed in the notch 54 and penetrates through the notch 54 and the second loading plate 51, and the sliding plate 53 is clamped or released by the locking member 55 by locking or releasing the locking member 55, thereby fixing or sliding the sliding plate 53. The second limiting members 53 are disposed at an edge of the sliding plate 53 at intervals, and the distance between each two adjacent second limiting members 53 is equal, and the second limiting members 53 are located between two sliding plates 53.
Since the arrangement direction of the two clamping assemblies 50 is parallel to the arrangement direction of the sixth mounting holes 42 of each row, and the two ends of the clamping assemblies 50 are detachably connected with the sixth mounting holes 42 of the second bracket 40, the two clamping assemblies 50 can be located at different positions of the second bracket 40 in the horizontal direction by connecting the seventh mounting holes 52 at the two ends of the second bearing plate 51 with the sixth mounting holes 42 at different positions, so as to adjust the distance between the two clamping assemblies 50, so that the clamping assemblies 50 can clamp the vehicle-mounted glass. The two clamping assemblies 50 are arranged at proper positions of the second support 40 according to the size of the vehicle-mounted glass, the two side edges of the vehicle-mounted glass are respectively attached to the two adjacent first limiting blocks 33 of the two clamping assemblies 50 in a clearance mode by sliding the sliding plate 53, and the locking member 55 is locked after positioning is completed, so that the sliding plate 53 is fixed, and the vehicle-mounted glass is clamped and fixed.
When different sizes of vehicle-mounted glass need be pickled simultaneously, the number of the clamping assemblies 50 and the number of the bearing assemblies 30 can be increased, the bearing assemblies 30 and the clamping assemblies 50 are arranged in different positions of the first support 10 and the second support 40 respectively, so that the position adjustment of the different sizes of vehicle-mounted glass is realized, the different sizes of vehicle-mounted glass are not interfered with each other when the pickling is carried out simultaneously, the pickling treatment of the different sizes of vehicle-mounted glass is completed simultaneously, and the compatibility of the jig is improved.
Compared with the prior art, the utility model provides a pair of high compatibility vehicle-mounted glass pickling positioning jig is through with first, second support 10, 40 first, fifth mounting hole 12, 42 with pillar 20 co-altitude third mounting hole 21 can dismantle the connection, thereby realizes bearing component 30 with the ascending regulation of centre gripping subassembly 50 vertical direction. And the both ends of the bearing component 30 can be dismantled with the second mounting hole 13 of the first support 10 respectively and be connected, the both ends of the centre gripping subassembly 50 can be dismantled with the sixth mounting hole 42 of the second support 40 respectively and be connected to realize bearing component 30 with the regulation of centre gripping subassembly 50 in the horizontal direction, and then make the tool can all adjust in perpendicular and horizontal direction, make the tool can be applicable to the on-vehicle glass of different specifications, improve the compatibility of tool. When different sizes of vehicle-mounted glass need to be pickled simultaneously, the number of the clamping assemblies 50 and the number of the bearing assemblies 30 are increased and are respectively arranged in different positions of the first support 10 and the second support 40, so that the different sizes of vehicle-mounted glass are not interfered with each other when being pickled simultaneously, the pickling treatment of the different sizes of vehicle-mounted glass is completed simultaneously, and the compatibility and the pickling efficiency of the jig are further improved.
The above description is only for the preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention, and any modification, equivalent replacement or improvement within the spirit of the present invention is encompassed by the claims of the present invention.

Claims (9)

1. The utility model provides a high compatibility vehicle-mounted glass pickling positioning jig which characterized in that: the high-compatibility vehicle-mounted glass pickling positioning jig comprises a first support, four supporting columns arranged on the first support, at least two bearing assemblies arranged on the first support, a second support arranged on the supporting columns, and at least two clamping assemblies arranged on the second support, wherein the first support comprises a body, a plurality of first mounting holes respectively arranged on four corners of the body, and a plurality of second mounting holes divided into two rows and respectively arranged on two sides of the body, the first mounting holes are respectively arranged on the four corners of the body in pairs and are positioned on two adjacent and mutually vertical side surfaces of the body, the positions of the second mounting holes in each row are corresponding, the four supporting columns are respectively arranged on the four corners of the inner side of the body, and the outer side surface of each supporting column is attached to the inner side surfaces of the four corners of the body, the pillar is provided with a plurality of third mounting holes which are divided into two rows and are arranged on two outer side surfaces of the pillar, two ends of the bearing assembly are respectively detachably connected with the second mounting holes, two arrangement directions of the bearing assembly are parallel to the arrangement direction of each row of the second mounting holes, the second support has a structure which is the same as that of the first support and also comprises a plurality of fifth mounting holes which are respectively arranged on four corners of the second support, and a plurality of sixth mounting holes which are divided into two rows and are arranged on two sides of the second support, two ends of the clamping assembly are respectively detachably connected with the sixth mounting holes, and two arrangement directions of the clamping assembly are parallel to the arrangement direction of each row of the sixth mounting holes.
2. The high-compatibility vehicle-mounted glass acid cleaning positioning jig as claimed in claim 1, wherein: the body is of a rectangular structure, the cross section of the body is L-shaped, and the interior of the body is hollow.
3. The high-compatibility vehicle-mounted glass acid cleaning positioning jig as claimed in claim 1, wherein: the central axes of the two first mounting holes arranged at the same corner of the body are vertical to each other.
4. The high-compatibility vehicle-mounted glass acid cleaning positioning jig as claimed in claim 1, wherein: and the adjacent second mounting holes are arranged at intervals and have equal interval distance.
5. The high-compatibility vehicle-mounted glass acid cleaning positioning jig as claimed in claim 1, wherein: the centers of the third mounting holes in each row are on a straight line, the straight line is perpendicular to the plane where the first support is located, and every two adjacent third mounting holes are arranged at intervals and are equal in interval distance.
6. The high-compatibility vehicle-mounted glass acid cleaning positioning jig as claimed in claim 1, wherein: the bearing assembly comprises a first bearing plate, two fourth mounting holes and a plurality of first limiting blocks, wherein the two ends of the first bearing plate are arranged on the first support respectively, the two fourth mounting holes are arranged at the two ends of the first bearing plate respectively, the first limiting blocks are arranged on the first bearing plate at intervals, and the distance between every two adjacent first limiting blocks is equal.
7. The high-compatibility vehicle-mounted glass acid cleaning positioning jig as claimed in claim 1, wherein: the clamping assembly comprises a second bearing plate, two seventh mounting holes, a sliding plate, at least two notches, at least two locking pieces and a plurality of second limiting pieces, wherein the two ends of the second bearing plate are arranged on the second support respectively, the seventh mounting holes are formed in the two ends of the second bearing plate, the sliding plate is arranged on the second bearing plate in a sliding mode, the at least two notches are arranged on the sliding plate, the at least two locking pieces are inserted into the notches, and the plurality of second limiting pieces are arranged on the sliding plate.
8. The high-compatibility vehicle-mounted glass acid-washing positioning jig as claimed in claim 7, wherein: the setting direction of the notch is parallel to the arrangement direction of the two clamping assemblies.
9. The high-compatibility vehicle-mounted glass acid-washing positioning jig as claimed in claim 7, wherein: the retaining member is arranged in the notch and penetrates through the notch and the second bearing plate and locks the sliding plate.
CN202023249715.0U 2020-12-29 2020-12-29 High-compatibility vehicle-mounted glass pickling positioning jig Active CN214022502U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202023249715.0U CN214022502U (en) 2020-12-29 2020-12-29 High-compatibility vehicle-mounted glass pickling positioning jig

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202023249715.0U CN214022502U (en) 2020-12-29 2020-12-29 High-compatibility vehicle-mounted glass pickling positioning jig

Publications (1)

Publication Number Publication Date
CN214022502U true CN214022502U (en) 2021-08-24

Family

ID=77343321

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202023249715.0U Active CN214022502U (en) 2020-12-29 2020-12-29 High-compatibility vehicle-mounted glass pickling positioning jig

Country Status (1)

Country Link
CN (1) CN214022502U (en)

Similar Documents

Publication Publication Date Title
CN100404205C (en) Flexible combined prestress clamp
CN214022502U (en) High-compatibility vehicle-mounted glass pickling positioning jig
CN111975395A (en) Mounting seat convenient to fix and remove
CN212203724U (en) Supporting seat
CN115323469B (en) Clamp for electrophoretic coating of automobile parts
CN112091620A (en) Preparation method of support seat and support seat
CN210188739U (en) Positioning tool for bevel rack processing machine tool
CN210593425U (en) Universal plug board
CN212470551U (en) Mounting seat convenient to fix and remove
CN213053749U (en) Fixing clamp for milling shaft workpieces
CN219861101U (en) Cover plate glass etching inserting frame jig
AU2016101897A4 (en) Convenient-to-adjust fixture for assembling an electric wheelchair
CN215355221U (en) Tool that glass soaked and used
CN210551129U (en) Spare part rack is used in automobile parts welding
CN210677884U (en) Special clamp for # -shaped plate
CN111015299A (en) Machining method of mechanical part and combined clamp
CN210706219U (en) Stable form frame for bender
CN220755150U (en) Special printed board flexible process bracket
CN211277437U (en) Automobile steering device shell inner hole milling fixture
CN216967524U (en) Flexible board clamp and processing equipment
CN219747760U (en) But commonality car windshield location frock
CN217727668U (en) Second station welding fixture of electric vehicle frame with integrated structure
CN218266669U (en) Supporting plate jig for assembling and laminating backlight source
CN219610375U (en) Cleaning basket
CN217292022U (en) Modularization portion dress frock

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant