CN223970761U - A steel bar bending device for construction engineering - Google Patents
A steel bar bending device for construction engineeringInfo
- Publication number
- CN223970761U CN223970761U CN202520341775.9U CN202520341775U CN223970761U CN 223970761 U CN223970761 U CN 223970761U CN 202520341775 U CN202520341775 U CN 202520341775U CN 223970761 U CN223970761 U CN 223970761U
- Authority
- CN
- China
- Prior art keywords
- bending
- steel bar
- groove
- workbench
- arc
- 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
Landscapes
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
本实用新型属于钢筋折弯技术领域，尤其是一种建筑工程用钢筋折弯装置，包括支撑杆，四个所述支撑杆的上部固定安装有工作台，所述工作台的上部固定安装有支撑板，所述支撑板的上表面开设有放置槽，所述放置槽的圆弧表面滑动接触有钢筋本体，所述工作台的上部设置有可调角度的折弯机构，所述工作台的上部设置有钢筋折弯距离调节机构。该建筑工程用钢筋折弯装置，通过设置可调角度的折弯机构对钢筋本体进行不同角度的折弯，使工作人员方便的进行不同折弯角度的钢筋折弯，且能够对不同尺寸的钢筋本体的折弯，设置钢筋折弯距离调节机构实现对钢筋的折弯距离进行方便的调节，解决了现有的无法满足对钢筋进行大角度的折弯需求的技术问题。
This utility model belongs to the field of rebar bending technology, and in particular, a rebar bending device for construction engineering. It includes support rods, with a workbench fixedly installed on the upper part of four support rods. A support plate is fixedly installed on the upper part of the workbench, and a placement groove is formed on the upper surface of the support plate. The arc surface of the placement groove slides in contact with the rebar body. An adjustable-angle bending mechanism and a rebar bending distance adjustment mechanism are provided on the upper part of the workbench. This rebar bending device for construction engineering, through the adjustable-angle bending mechanism, allows for bending the rebar body at different angles, enabling workers to conveniently bend rebar at different angles and to bend rebar bodies of different sizes. The rebar bending distance adjustment mechanism allows for convenient adjustment of the bending distance, solving the technical problem that existing devices cannot meet the requirements for large-angle bending of rebar.
Description
Technical Field
The utility model relates to the technical field of steel bar bending, in particular to a steel bar bending device for construction engineering.
Background
In prior art, the steel bar bending device for building engineering like the bulletin number CN222094578U that discloses on the Chinese patent website, through the connecting plate that sets up, no. two bolts, the gag lever post, no. two motors, the lead screw, no. two movable blocks, dead lever and movable block, can be efficient bend the processing of bending of the fixed back of centre gripping, the practicality is higher, after the length adjustment of bending of reinforcing bar is accomplished and centre gripping is fixed, drive the lead screw through opening No. two motors and rotate, no. two movable blocks can be moved backward along with the rotation of lead screw at this moment, can drive dead lever and movable block simultaneously, movable block can promote the reinforcing bar and remove when removing, at this moment can bend the reinforcing bar under the cooperation of gag lever post, can effectually bend the processing of bending of reinforcing bar after the centre gripping is fixed through reversing No. one motor cancellation.
But in the in-service use process, the second movable block is moved to drive the rotary block to move to bend the steel bar, the bending angle of the steel bar cannot be adjusted, the steel bar can only be bent by 90 degrees at maximum, and the requirement of bending the steel bar by a large angle cannot be met.
Disclosure of utility model
Based on the technical problem that the requirement of bending the steel bar at a large angle cannot be met in the prior art, the utility model provides a steel bar bending device for construction engineering.
The utility model provides a reinforcing steel bar bending device for construction engineering, which comprises support rods, wherein the upper parts of the four support rods are fixedly provided with a workbench, the upper parts of the workbench are fixedly provided with support plates, the upper surfaces of the support plates are provided with placing grooves, the arc surfaces of the placing grooves are in sliding contact with reinforcing steel bar bodies, the upper parts of the workbench are provided with angle-adjustable bending mechanisms, and the upper parts of the workbench are provided with reinforcing steel bar bending distance adjusting mechanisms.
Preferably, the sliding tray has been seted up on the upper portion of workstation, the inboard of sliding tray keeps away the opposite face and rotates through ball bearing and be connected with two-way screw rod, two side screw thread faces of two-way screw rod are threaded connection respectively has the sliding block, the upper portion fixed mounting of sliding block has the grip block, the one end of two-way screw rod runs through and extends one side of workstation, one side fixed mounting of workstation has rotation motor, rotation motor's output pass through the shaft coupling with one end fixed connection of two-way screw rod.
Through above-mentioned technical scheme, set up the rotation motor, start the rotation motor and drive bi-directional screw and rotate for two sliding blocks are synchronous to subtend and move in opposite directions, make the grip block on two sliding block upper portions press from both sides tightly fixedly to the reinforcing bar body, prevent that the reinforcing bar body from moving at the in-process of bending.
Preferably, the bending mechanism of adjustable angle includes the gag lever post, the circular arc surface of gag lever post with the circular arc surface sliding contact of reinforcing bar body, the circular arc surface of gag lever post is connected with the rotor plate through ball bearing rotation, the adjustment tank has been seted up to the both sides of rotor plate, two the inside wall of adjustment tank all slides and peg graft there is the movable plate, the upper portion fixed mounting of movable plate has the post of bending, one side threaded connection of movable plate has fastening bolt, fastening bolt's one end with one side inner wall extrusion contact of adjustment tank.
Through above-mentioned technical scheme, set up the gag lever post and bend spacingly to the reinforcing bar body, set up the rotor plate, the rotor plate rotates around the gag lever post of bending of drive rotor plate top around the gag lever post rotation, make the post extrusion reinforcing bar body of bending bend, set up adjustment tank and movable plate, remove along the adjustment tank through the movable plate and adjust the position of post on the rotor plate of bending, satisfy the demand of bending to the reinforcing bar body of equidimension not, set up fastening bolt, screw in fastening bolt and the inside wall extrusion contact of adjustment tank, make the movable plate can fix on the assigned position of adjustment tank.
Preferably, the surface of workstation has seted up the circular arc groove, the rotation angle scale groove has been seted up to the upper surface of workstation, rotation angle scale groove sets up one side in circular arc groove, the lower part of rotor plate is connected with the removal post through ball bearing rotation, the lower part fixed mounting of workstation has the internal gear, the circular arc surface fixedly connected with of removal post rotates the gear, the teeth of a cogwheel of rotation gear with the tooth's socket meshing of internal gear.
Through above-mentioned technical scheme, set up rotation gear and internal gear, rotation gear and internal gear meshing, rotation gear's rotation can be followed the internal gear and removed, drives the removal post and follows the circular arc groove and slide, drives the rotor plate and rotates around the gag lever post, sets up rotation angle scale groove, can make things convenient for audio-visual observation to bend the angle, makes the staff convenient carry out the reinforcing bar of different angles of bending.
Preferably, the lower surface fixed mounting of workstation has the circular arc sliding shell, the inside wall slip grafting of circular arc sliding shell has the circular arc sliding block, the lower surface fixed mounting of circular arc sliding block has the mounting panel, the upper surface of mounting panel with the lower extreme of removal post passes through ball bearing and rotates to be connected, the lower extreme of removal post runs through and extends the lower part of mounting panel, the lower part fixed mounting of mounting panel has the motor of bending, the output of motor of bending pass through the shaft coupling with the lower extreme fixed connection of removal post.
Through the technical scheme, the bending motor is arranged, the bending motor is started to drive the movable column and the rotary gear to rotate, the movable column is driven to move along the arc groove, and the arc sliding shell and the arc sliding block are arranged, so that the movable column moves to drive the arc sliding block to slide along the arc sliding shell to drive the bending motor to move along with the movement of the movable column.
Preferably, the steel bar bending distance adjusting mechanism comprises a fixed plate, a moving groove is formed in the upper surface of the fixed plate, a limiting column is fixedly installed on the inner opposite surface of the moving groove, an adjusting sliding block is slidably inserted on the circular arc surface of the limiting column, an abutting plate is fixedly installed on the upper portion of the adjusting sliding block, a distance scale groove is formed in the upper surface of the fixed plate, and the distance scale groove is formed in one side of the moving groove.
Through above-mentioned technical scheme, set up adjusting slide and travel groove, adjusting slide carries out back-and-forth movement along the travel groove under the spacing of spacing post, drives the butt board and carries out the back-and-forth sliding, changes the distance of placing of reinforcing bar body, sets up apart from the scale groove, can make things convenient for the direct travel distance who adjusts the butt board.
The beneficial effects of the utility model are as follows:
1. The bending mechanism with the adjustable angle is arranged to bend the steel bar body at different angles, so that the steel bars with different bending angles can be bent conveniently by workers, the steel bar body with different sizes can be bent, and the bending distance of the steel bar can be adjusted conveniently by the bending distance adjusting mechanism, so that the technical problem that the bending requirement of the steel bar at a large angle can not be met is solved.
2. Through setting up the motor of bending, start the motor of bending and drive the movable column and rotate the gear and rotate, drive the movable column and remove along the circular arc groove, set up circular arc sliding shell and circular arc sliding block for the removal of movable column drives the circular arc sliding block and slides along the circular arc sliding shell and drive the motor of bending and remove along with the removal of movable column, sets up rotation angle scale groove, can make things convenient for audio-visual observation to bend the angle, makes the convenient reinforcing bar of carrying out different angles of bending of staff bend.
Drawings
Fig. 1 is a schematic diagram of a steel bar bending device for construction engineering according to the present utility model;
Fig. 2 is an enlarged view of a portion a of the reinforcing steel bar bending device for construction engineering according to the present utility model;
fig. 3 is a perspective view of a fixing plate structure of the reinforcing steel bar bending device for construction engineering according to the present utility model;
Fig. 4 is a perspective view of a circular arc sliding shell structure of the reinforcing steel bar bending device for construction engineering provided by the utility model;
Fig. 5 is a perspective view of a moving column structure of the reinforcing steel bar bending device for construction engineering according to the present utility model.
The device comprises a supporting rod, a workbench, a supporting plate, a placing groove, a 5, a reinforcing steel bar body, a 6, a sliding groove, a 7, a two-way screw, a 8, a sliding block, a 9, a clamping block, a 10, a rotating motor, a 11, a limiting rod, a 12, a rotating plate, a 13, an adjusting groove, a 14, a moving plate, a 15, a bending column, a 16, a fastening bolt, a 17, an arc groove, a 18, a rotating angle scale groove, a 19, a moving column, a 20, an inner gear, a 21, a rotating gear, a 22, an arc sliding shell, a 23, an arc sliding block, a 24, a mounting plate, a 25, a bending motor, a 26, a fixed plate, a 27, a moving groove, a 28, a limiting column, a 29, an adjusting slide block, a 30, an abutting plate, a 31 and a distance scale groove.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
Referring to fig. 1 to 5, a steel bar bending device for construction engineering comprises support rods 1, wherein a workbench 2 is fixedly arranged on the upper parts of the four support rods 1, a support plate 3 is fixedly arranged on the upper part of the workbench 2, a placing groove 4 is formed in the upper surface of the support plate 3, a steel bar body 5 is in sliding contact with the arc surface of the placing groove 4, an angle-adjustable bending mechanism is arranged on the upper part of the workbench 2, and a steel bar bending distance adjusting mechanism is arranged on the upper part of the workbench 2.
The upper portion of workstation 2 has been seted up sliding tray 6, the inboard of sliding tray 6 keeps away the opposite face and rotates through ball bearing and be connected with bi-directional screw rod 7, bi-directional screw rod 7's both sides screw surface threaded connection has sliding block 8 respectively, the upper portion fixed mounting of sliding block 8 has grip block 9, one end of bi-directional screw rod 7 runs through and extends one side of workstation 2, one side fixed mounting of workstation 2 has rotating electrical machines 10, rotating electrical machines 10's output passes through the one end fixed connection of shaft coupling and bi-directional screw rod 7.
Through setting up rotation motor 10, start rotation motor 10 drives bi-directional screw 7 and rotates for two sliding blocks 8 are synchronous to be opposite to and move in opposite directions, make the grip block 9 on two sliding blocks 8 upper portions press from both sides tightly fixed to reinforcing bar body 5, prevent that reinforcing bar body 5 from moving at the in-process of bending.
The angle-adjustable bending mechanism comprises a limiting rod 11, the arc surface of the limiting rod 11 is in sliding contact with the arc surface of the steel bar body 5, the arc surface of the limiting rod 11 is rotationally connected with a rotating plate 12 through a ball bearing, adjusting grooves 13 are formed in two sides of the rotating plate 12, movable plates 14 are slidably inserted into the inner side walls of the two adjusting grooves 13, bending columns 15 are fixedly mounted on the upper portions of the movable plates 14, one side of each movable plate 14 is in threaded connection with a fastening bolt 16, and one end of each fastening bolt 16 is in extrusion contact with one side inner wall of each adjusting groove 13.
Through setting up gag lever post 11 and bending spacing to reinforcing bar body 5, set up rotor plate 12, rotor plate 12 rotates around gag lever post 11 rotation of bending of drive rotor plate 12 top 15 around gag lever post 11, make the post 15 of bending extrude reinforcing bar body 5 and bend, set up adjustment tank 13 and movable plate 14, move along adjustment tank 13 through movable plate 14 and adjust the position of post 15 of bending on rotor plate 12, satisfy the demand of bending to not unidimensional reinforcing bar body 5, set up fastening bolt 16, screw in fastening bolt 16 and the inside wall extrusion contact of adjustment tank 13, make movable plate 14 can fix on the assigned position of adjustment tank 13.
The surface of the workbench 2 is provided with an arc groove 17, the upper surface of the workbench 2 is provided with a rotation angle scale groove 18, the rotation angle scale groove 18 is arranged on one side of the arc groove 17, the lower part of the rotating plate 12 is rotationally connected with a moving column 19 through a ball bearing, the lower part of the workbench 2 is fixedly provided with an internal gear 20, the arc surface of the moving column 19 is fixedly connected with a rotating gear 21, and gear teeth of the rotating gear 21 are meshed with tooth grooves of the internal gear 20.
Through setting up rotation gear 21 and internal gear 20, rotation gear 21 and internal gear 20 meshing, rotation gear 21's rotation can be followed internal gear 20 and removed, drives and removes post 19 and slide along circular arc groove 17, drives rotor plate 12 and rotates around gag lever post 11, sets up rotation angle scale groove 18, can make things convenient for audio-visual observation angle of bending, makes the staff convenient carry out the reinforcing bar of different angles of bending and bend.
The lower surface fixed mounting of workstation 2 has circular arc slide casing 22, and circular arc slide casing 22's inside wall slip grafting has circular arc sliding block 23, and circular arc sliding block 23's lower surface fixed mounting has mounting panel 24, and the upper surface of mounting panel 24 passes through ball bearing rotation with the lower extreme of removal post 19 and is connected, and the lower extreme of removal post 19 runs through and extends the lower part of mounting panel 24, and the lower part fixed mounting of mounting panel 24 has bending motor 25, and the output of bending motor 25 passes through shaft coupling and the lower extreme fixed connection of removal post 19.
Through setting up bending motor 25, start bending motor 25 drive and remove post 19 and rotation gear 21 rotation, drive and remove post 19 along circular arc groove 17 removal, set up circular arc sliding shell 22 and circular arc sliding block 23 for the removal of removal post 19 drives circular arc sliding block 23 along circular arc sliding shell 22 slip drive bending motor 25 along with the removal of removal post 19.
The steel bar bending distance adjusting mechanism comprises a fixed plate 26, a movable groove 27 is formed in the upper surface of the fixed plate 26, limiting columns 28 are fixedly installed on the opposite inner sides of the movable groove 27, an adjusting sliding block 29 is inserted into the circular arc surface of each limiting column 28 in a sliding mode, an abutting plate 30 is fixedly installed on the upper portion of each adjusting sliding block 29, a distance scale groove 31 is formed in the upper surface of the fixed plate 26, and the distance scale groove 31 is formed in one side of the movable groove 27.
Through setting up adjusting slide 29 and removal groove 27, adjusting slide 29 carries out back-and-forth movement along removal groove 27 under the spacing of spacing post 28, drives butt board 30 and carries out the back-and-forth sliding, changes the distance of placing of reinforcing bar body 5, sets up apart from scale groove 31, can make things convenient for the direct removal distance of adjusting butt board 30.
Working principle: firstly, the steel bar body 5 to be bent is placed in a placing groove 4 on a supporting plate 3, then the position of an abutting plate 30 in a moving groove 27 is adjusted according to a distance scale groove 31 on a fixed plate 26, the bending distance of the steel bar body 5 is adjusted, then a rotating motor 10 is started to drive a bidirectional screw 7 to rotate, two sliding blocks 8 drive two clamping blocks 9 to move oppositely, the clamping blocks 9 clamp and fix the steel bar body 5, the steel bar body 5 is prevented from being forced to move in the bending process, a fastening bolt 16 is screwed out, a moving plate 14 can slide in an adjusting groove 13 in an unimpeded manner, the positions of the moving plate 14 and a bending column 15 are adjusted, then the fastening bolt 16 is screwed in, the position of the moving plate 14 is fixed, finally, a bending motor 25 is started to drive a moving column 19 to rotate, a rotating gear 21 is driven to rotate along an inner gear 20, the moving column 19 is driven to move along an arc groove 17, a 12 is driven to rotate around a limiting rod 11, the bending column 15 above the rotating plate 12 rotates and extrudes the steel bar body 5 around the limiting rod 11, and the steel bar body is bent through observing a rotating angle scale groove 18.
The present utility model is not limited to the above-mentioned embodiments, and any person skilled in the art, based on the technical solution of the present utility model and the inventive concept thereof, can be replaced or changed within the scope of the present utility model.
Claims (6)
1. The steel bar bending device for the construction engineering comprises supporting rods (1) and is characterized in that the upper parts of the four supporting rods (1) are fixedly provided with work tables (2), the upper parts of the work tables (2) are fixedly provided with supporting plates (3), the upper surfaces of the supporting plates (3) are provided with placing grooves (4), the arc surfaces of the placing grooves (4) are in sliding contact with a steel bar body (5), the upper parts of the work tables (2) are provided with bending mechanisms with adjustable angles, and the upper parts of the work tables (2) are provided with steel bar bending distance adjusting mechanisms.
2. The steel bar bending device for construction engineering according to claim 1, wherein a sliding groove (6) is formed in the upper portion of the workbench (2), a bidirectional screw (7) is rotatably connected to the inner side opposite surface of the sliding groove (6) through a ball bearing, sliding blocks (8) are respectively and threadedly connected to two side threaded surfaces of the bidirectional screw (7), clamping blocks (9) are fixedly arranged on the upper portion of the sliding blocks (8), one end of the bidirectional screw (7) penetrates through and extends out of one side of the workbench (2), a rotating motor (10) is fixedly arranged on one side of the workbench (2), and an output end of the rotating motor (10) is fixedly connected with one end of the bidirectional screw (7) through a coupler.
3. The steel bar bending device for construction engineering according to claim 1, wherein the angle-adjustable bending mechanism comprises a limiting rod (11), the arc surface of the limiting rod (11) is in sliding contact with the arc surface of the steel bar body (5), the arc surface of the limiting rod (11) is rotationally connected with a rotating plate (12) through a ball bearing, adjusting grooves (13) are formed in two sides of the rotating plate (12), movable plates (14) are slidably inserted into inner side walls of the two adjusting grooves (13), bending columns (15) are fixedly mounted on the upper portions of the movable plates (14), one side of each movable plate (14) is in threaded connection with a fastening bolt (16), and one end of each fastening bolt (16) is in extrusion contact with one side inner wall of each adjusting groove (13).
4. The steel bar bending device for construction engineering according to claim 3, wherein the surface of the workbench (2) is provided with an arc groove (17), the upper surface of the workbench (2) is provided with a rotation angle scale groove (18), the rotation angle scale groove (18) is arranged on one side of the arc groove (17), the lower part of the rotating plate (12) is rotationally connected with a moving column (19) through a ball bearing, the lower part of the workbench (2) is fixedly provided with an inner gear (20), the arc surface of the moving column (19) is fixedly connected with a rotating gear (21), and gear teeth of the rotating gear (21) are meshed with tooth grooves of the inner gear (20).
5. The steel bar bending device for construction engineering according to claim 4, wherein an arc sliding shell (22) is fixedly arranged on the lower surface of the workbench (2), an arc sliding block (23) is slidably inserted into the inner side wall of the arc sliding shell (22), a mounting plate (24) is fixedly arranged on the lower surface of the arc sliding block (23), the upper surface of the mounting plate (24) is rotatably connected with the lower end of the movable column (19) through a ball bearing, the lower end of the movable column (19) penetrates through and extends out of the lower portion of the mounting plate (24), a bending motor (25) is fixedly arranged on the lower portion of the mounting plate (24), and the output end of the bending motor (25) is fixedly connected with the lower end of the movable column (19) through a coupler.
6. The steel bar bending device for construction engineering according to claim 1, wherein the steel bar bending distance adjusting mechanism comprises a fixed plate (26), a movable groove (27) is formed in the upper surface of the fixed plate (26), limiting columns (28) are fixedly installed on opposite inner sides of the movable groove (27), adjusting sliding blocks (29) are slidingly inserted into the circular arc surfaces of the limiting columns (28), abutting plates (30) are fixedly installed on the upper portions of the adjusting sliding blocks (29), distance scale grooves (31) are formed in the upper surface of the fixed plate (26), and the distance scale grooves (31) are formed in one sides of the movable groove (27).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202520341775.9U CN223970761U (en) | 2025-02-28 | 2025-02-28 | A steel bar bending device for construction engineering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202520341775.9U CN223970761U (en) | 2025-02-28 | 2025-02-28 | A steel bar bending device for construction engineering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223970761U true CN223970761U (en) | 2026-03-06 |
Family
ID=98910058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202520341775.9U Active CN223970761U (en) | 2025-02-28 | 2025-02-28 | A steel bar bending device for construction engineering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223970761U (en) |
-
2025
- 2025-02-28 CN CN202520341775.9U patent/CN223970761U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN219786723U (en) | Cutting device with cutting angle convenient to adjust | |
| CN217665594U (en) | Single pipe bending machine capable of adjusting bending degree | |
| CN219665825U (en) | Stainless steel tube machining clamping device suitable for different diameters | |
| CN218361496U (en) | Bending mechanism | |
| CN223970761U (en) | A steel bar bending device for construction engineering | |
| CN208163426U (en) | Ceramic tile cutting high pressure waterjet device | |
| CN214768529U (en) | Portable reinforcing bar bending device for construction | |
| CN219944237U (en) | Combined bent pipe shaping mechanism | |
| CN218362244U (en) | Drilling equipment is used in hardware processing | |
| CN213856785U (en) | Construction steel bar bender | |
| CN221559393U (en) | A straightening device for steel structure column beams | |
| CN222642897U (en) | Brass bar straightening device | |
| CN220282774U (en) | Rotary reversing device for log sorting line | |
| CN221620649U (en) | Multi-angle-adjustable steel bar bending machine | |
| CN224026650U (en) | Galvanized threading steel pipe threading machine with locking mechanism | |
| CN222200465U (en) | A fixing mechanism for processing container bottom plate | |
| CN220313809U (en) | Template clamp for building construction | |
| CN111468956A (en) | Automatic change return bend rust cleaning straightening equipment | |
| CN223531170U (en) | A continuous bending processing device for pipe fittings | |
| CN217726719U (en) | Straightening equipment for steel structure production with simple operation | |
| CN223083039U (en) | A surface spraying device for computer sheet metal accessories | |
| CN220102281U (en) | Translational water supply and drainage pipeline laying and positioning structure | |
| CN222159641U (en) | Auxiliary bracket for electromechanical installation | |
| CN222288434U (en) | Tubular part bending processing equipment | |
| CN222245452U (en) | Brick cutting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |