CN204096023U - Bicycle derailleur - Google Patents
Bicycle derailleur Download PDFInfo
- Publication number
- CN204096023U CN204096023U CN201420478519.6U CN201420478519U CN204096023U CN 204096023 U CN204096023 U CN 204096023U CN 201420478519 U CN201420478519 U CN 201420478519U CN 204096023 U CN204096023 U CN 204096023U
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- rod component
- component
- bicycle derailleur
- bracing wire
- 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
- Clamps And Clips (AREA)
Abstract
The utility model provides a kind of bicycle derailleur, there is base component, support a movable link, movable link has been connected with chain guide, chain guide is provided with a guide wheel, base component is provided with Lead guide holes, and be provided with first connecting rod component, be connected between base component and chain guide, rear derailleur is also provided with second connecting rod component, outside the side direction being arranged at first connecting rod component, be also provided with clamp screw, will through the fastening stay wire of the Lead guide holes of base component on second connecting rod component.The bicycle derailleur that the utility model provides effectively avoids bracing wire to gather after mud, sandstone etc. are suspended because of bending, situation about rupturing because bearing larger stress, and in rear derailleur speed-change process, reduce bracing wire wearing and tearing, and reduce the length of bracing wire, extend the service life of bracing wire and improve speed change accuracy.
Description
Technical field
The utility model relates to bicycle accessories field, especially relates to a kind of rear derailleur for variable speed bicycle.
Background technology
Bicycle is the vehicle that people generally use, and along with the improvement of people's living condition, riding bicycle has become the project of people's leisure, motion.Along with riding bicycle is as the future development of leisure, athletics event, people also propose higher requirement to the properity of bicycle, and traditional bicycle as just transport facility can not meet the requirement of people.
Because traditional bicycle only comprises vehicle frame, be separately installed with wheel at the two ends of vehicle frame, and by power system, advance as chain, pedal etc. drive rotating of wheel and order about bicycle.In addition, the vehicle frame of bicycle is also provided with brake system, steering swivel system etc.But often through different road surfaces during people's riding bicycle, as upward slope, descending, level road etc., people's traditional bicycle of riding is often relatively hard when going up a slope, sometimes has to get off and carrying out bicycle and go up a slope, affecting riding of people.
Therefore, speed change system installed by existing bicycle, at handling position, regulating mechanism is installed, and the sprocket wheel that multiple diameter differs is installed in trailing wheel side, be outside equipped with rear derailleur at sprocket wheel, regulating mechanism is connected with rear derailleur by bracing wire, rear derailleur being provided with connecting rod mechanism, regulating the position of bracing wire by rotating regulating mechanism, and then drivening rod mechanism rotates, thus change the position of rear derailleur guide wheel, and change on sprocket wheel that chain snaps in.Like this, when chain snaps in different sprocket wheels, the transmitting ratio of chain changes, and realizes the object of speed change.
Chinese invention patent application as publication number to be CN1146799A and publication number be CN101704399A individually discloses the rear derailleur of two kinds of variable speed bicycles, these two kinds of rear derailleurs all have connecting rod mechanism, connecting rod mechanism comprises one piece of interior plate and one piece of outer panel, B artis and P artis is connected between interior plate and outer panel, interior plate, outer panel, B artis and P artis form a parallelogram sturcutre, and this parallelogram sturcutre forms a link component.Further, a limit of connecting rod mechanism is connected with chain guide, and chain guide is provided with guide wheel, and chain snaps on guide wheel.
The end of pulling be connected with regulating mechanism is clamped on connecting rod mechanism, connecting rod mechanism is also provided with a clamp screw, for clamping the end of bracing wire.In technical scheme disclosed in above-mentioned two sections of application documents, clamp screw is all arranged on the inner side of parallel four limit structures, and namely clamp screw is between interior plate and outer panel, and between B artis and P artis.
But, clamp screw is arranged in parallelogram sturcutre, although the volume of rear derailleur can be reduced, but as shown in Figure 6, near rear derailleur bracing wire cover normally from the strut 41 of cycle frame through the bullport of on base component 43, cause bracing wire 40 to need to turn the circle of a larger radian.As shown in Figure 7, the bracing wire 50 of another kind of bicycle is also the bullport through base component from strut 51, wire 50 is also the circle of a formation larger radian, thus causes grinding between bracing wire 40 and spool sassafras power and to increase or bracing wire 40 strengthens with the mill sassafras power of extraneous circular arc.
When being used in mountain bike, the bracing wire of this Bosden type can be assembled in the longitudinal direction water, mud gravel etc., these objects have the trend be gathered in Bowden type bracing wire sheath body, this just causes bracing wire get clogged or block, thus add the propulsive effort driving gearshift, bracing wire is often easily suspended to by these objects and causes bracing wire wearing and tearing even to rupture, and causes the connecting rod mechanism of rear derailleur to be pulled, guide wheel also cannot change position, finally causes bicycle cannot speed governing.
Summary of the invention
Main purpose of the present utility model is to provide a kind of rear derailleur, in rear derailleur speed-change process, especially reduces bracing wire wearing and tearing, make rear derailleur speed change accurately and reliably, and reduce bracing wire length.
In order to realize above-mentioned main purpose, the bicycle derailleur that the utility model provides has base component, support a movable link, movable link is connected with chain guide, chain guide is provided with a guide wheel, base component is provided with Lead guide holes, and be provided with first connecting rod component, be connected between base component and chain guide, rear derailleur is also provided with second connecting rod component, outside the side direction being arranged at first connecting rod component, be also provided with clamp screw, will through the fastening stay wire of the Lead guide holes of base component on second connecting rod component.
From such scheme, second connecting rod component is arranged on the outside of parallel first connecting rod component, and a part for base component forms a limit of parallelogram, base component arranges Lead guide holes, like this, after being drawstring through Lead guide holes, does not need bending namely can be clamped clamped by screw, bracing wire is not easy gather the object such as mud, sandstone, and effectively reduce bracing wire wearing and tearing, make rear derailleur speed change accurately and reliably, and effectively reduce bracing wire length.
A preferred scheme is, first connecting rod component comprises the interior plate and outer panel that are parallel to each other, second connecting rod component is arranged on the outside of interior plate, and second connecting rod component is fixed on interior plate by attaching parts.Like this, second connecting rod component and interior plate are two different parts, can distinguish processing and manufacturing.Further, the stress to interior plate when bracing wire is stretched, can be reduced, be conducive to the service life extending interior plate, when second connecting rod component damage, only need to change second connecting rod component easily, and do not need to change interior plate.
Further scheme is, attaching parts is rivet, and the quantity of rivet is two, and two rivets are installed on second connecting rod component with different installation directions.
As can be seen here, second connecting rod component is fixed on interior plate by the rivet using two installation directions different, when guaranteeing that stringing part rotates, interior plate can not with stringing part generation relative motion, thus guarantee that the rotation of second connecting rod component starts interior plate synchronous axial system, and then drive the synchronous axial system of chain guide.
Further scheme is, second connecting rod component is provided with the tapped bore coordinated with clamp screw, clamp screw is to screw in tapped bore near the direction of cycle frame away from cycle frame, or clamp screw screws in tapped bore with the direction below direction cycle frame on cycle frame.
As can be seen here, clamp screw can screw in from the direction near cycle frame lateral inside cycle frame, or direction screws in from the top down, is conducive to the screw-in of clamp screw, facilitate the assembling of rear derailleur, also person easy to use is to the adjustment of bracing wire length.
Further scheme is, second connecting rod component is positioned at the side of chain guide away from cycle frame, and second connecting rod component and chain guide lay respectively at the both sides of base component.
Visible, second connecting rod component is arranged on the side away from cycle frame, avoids the end of bracing wire to affect the rotation of chain, also avoid the end of bracing wire to affect the rotation of wheel, be conducive to moving ahead and speed governing of bicycle.
Accompanying drawing explanation
Fig. 1 is the constructional drawing at the utility model embodiment first visual angle.
Fig. 2 is the constructional drawing at the utility model embodiment second visual angle.
Fig. 3 is the constructional drawing at the utility model embodiment the 3rd visual angle.
Fig. 4 is the constructional drawing at the utility model embodiment the 4th visual angle.
Fig. 5 is the constructional drawing at the utility model embodiment the 5th visual angle.
Fig. 6 is the local structural graph of existing a kind of bicycle derailleur and cycle frame.
Fig. 7 is the local structural graph of existing another kind of bicycle derailleur and cycle frame.
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Detailed description of the invention
Bicycle derailleur of the present utility model is arranged on the side of bicycle rear, bicycle has vehicle frame, the rear and front end of vehicle frame is separately installed with front-wheel and trailing wheel, and the trailing wheel side of bicycle is provided with the sprocket wheel that multiple diameter differs, and the chain of bicycle snaps onto in different sprocket wheels.Rear derailleur of the present utility model is arranged on the outside of multiple sprocket wheel, and for changing the position of the sprocket wheel that chain snaps in.
The handle place of bicycle is provided with regulating mechanism, regulating mechanism is fixed with one end of bracing wire, and the end of bracing wire is clamped on rear derailleur.Drive the flexible of bracing wire by rotating regulating mechanism, thus change the shape of rear derailleur.
See Fig. 1, bicycle derailleur of the present utility model has base component 20, connecting rod mechanism and movable link, connecting rod mechanism comprises first connecting rod component and second connecting rod component 35, first connecting rod component comprises interior plate 10 and outer panel 15, after rear derailleur is installed to bicycle, interior plate 10 is positioned at the below of outer panel 15, and interior plate 10 and outer panel 15 are arranged in parallel all the time.In addition, interior plate 10 relative to outer panel 15 more near the vehicle frame of bicycle.Interior plate 10 and the two ends of outer panel 15 are connected respectively to base component 20 with on connecting rod attaching parts 25, thus, interior plate 10, outer panel 15 and base component 20, connecting rod attaching parts 25 form a parallelogram sturcutre, and the shape of parallelogram can change.
See Fig. 2, the first end of interior plate 10 is fixed on base component 20 by rivet 13, second end 12 is fixed on connecting rod attaching parts 25 by rivet 14, and the first end 16 of outer panel 15 is fixed on base component 20 by rivet 18, and the second end 17 is fixed on connecting rod attaching parts 25 by rivet 19.And, second connecting rod component 35 is provided with outside the first end 11 of interior plate 10, the end of second connecting rod component 35 is provided with clamp screw 36, second connecting rod component 35 is provided with tapped bore, negative thread is provided with in tapped bore, the outside thread of clamp screw 36 and the screw-internal thread fit of tapped bore, screw in clamp screw 36 in tapped bore thus.
The upper end of base component 20 is provided with Lead guide holes 21, as shown in Figure 1, after bracing wire is stretched out from the regulating mechanism being positioned at bicycle handle, through Lead guide holes 21, the end of bracing wire is clamped clamped by screw 36, is fixed on rear derailleur by the end of bracing wire thus.From Fig. 1 and Fig. 3, Lead guide holes 21 runs through base component 20, and therefore bracing wire can run through a sidewall of base component 20, thus carries out spacing to bracing wire, avoids bracing wire to rock on rear derailleur.
As seen from Figure 1, the upper end of base component 20 is provided with mounting hole 22, uses clamp screw or rivet etc. through mounting hole 22, is fixed on the vehicle frame of bicycle by rear derailleur thus.
In the present embodiment, clamp screw 36 is arranged on the outer end of second connecting rod component 35, namely away from one end of interior plate 10, like this, after regulating mechanism is rotated, bracing wire is extended or is shunk, the position of clamp screw 36 is driven to change immediately, second connecting rod component 35 also rotates thereupon, drives the rotation of interior plate 10 thus, changes the shape of the parallelogram be made up of interior plate 10, outer panel 15, base component 20 and connecting-bar connector 25.
Further, second connecting rod component 35 and interior plate 10 are two parts be processed into respectively, therefore need between second connecting rod component 35 with interior plate 10 to be fixedly connected with by attaching parts.In the present embodiment, rivet 13 not only for connecting interior plate 10 and base component 20, also for interior plate 10 is connected with second connecting rod component 35.In order to prevent second connecting rod component 35 from rotating relative to interior plate 10, the present embodiment uses two rivets second connecting rod component 35 and interior plate 10 to be fixed.Preferably, two rivets are installed on second connecting rod component 35 with different installation directions.As seen from Figure 2, rivet 13 is installed on second connecting rod component 35 by the direction away from cycle frame to the direction near cycle frame, and the direction of another rivet then above the lower direction second connecting rod component 35 of second connecting rod component 35 is installed to second connecting rod component 35.Certainly, screw also can be used to substitute rivet as attaching parts, second connecting rod component 35 and interior plate 10 are fixed.
Certainly, during practical application, second connecting rod component 35 also can be one-body molded with interior plate 10, like this without the need to using rivet second connecting rod component 35 and interior plate 10 to be fixed.
Base component 20 is supported with a movable link, and movable link is connected to chain guide 30, and as shown in Figure 3 and Figure 4, chain guide 35 is positioned at the side of base component 20.After rear derailleur is installed to cycle frame, chain guide 30 is near cycle frame.Be separately installed with a guide wheel 31,32 at the two ends of chain guide 30, the chain of bicycle can snap onto in sprocket wheel 31,32.
Base component 20 and the interconnective tapped bore of rear car frame end have axis, first connecting rod component can pivotally be connected between base component 20 and chain guide 30, and chain guide 30 is laterally moved between the first lateral position and the second lateral position relative to base component 20.In the present embodiment, the first lateral position is the position near cycle frame, and the second lateral position is the position away from cycle frame.
Because chain guide 30 is fixedly connected with connecting rod attaching parts 25, therefore chain guide 30 rotates with the rotation of connecting rod attaching parts 25, guide wheel 31 also changes position with the rotation of chain guide 30, thus change the position of chain, also just can change chain to snap in sprocket wheels different in chain wheel set, realize the speed governing of bicycle.
See Fig. 5, second connecting rod component 35 is positioned at outside the side direction of first connecting rod component, and chain guide 30 is laterally moved relative to base component 20 between the first lateral position and the second lateral position.Second connecting rod component 35 and chain guide 30 lay respectively at the both sides of base component 20, after rear derailleur is installed to bicycle, chain guide 30 is positioned at the side of base component 20 near cycle frame, and second connecting rod component 35 is positioned at the side away from cycle frame.Like this, after the end of bracing wire is clamped in clamp screw 36, the end of bracing wire can not affect the rotation of guide wheel 31, also can not affect the rotation of sprocket wheel, bicycle rear, also the convenient adjustment to clamp screw 36.
In addition, in the present embodiment, clamp screw 36 is screwed on second connecting rod component 35 with the direction away from cycle frame to the direction near cycle frame, can facilitate the installation of clamp screw 36 like this.During practical application, clamp screw 36 can be installed to second connecting rod component 35 from the direction below the upper direction bicycle of cycle frame.Certainly, in the angular range above from bicycle lateral direction to cycle frame, can be all the installation direction of clamp screw 36.
From above-mentioned scheme, clamp screw 36 is arranged on outside parallelogram that interior plate 10, outer panel 15, base component 20 and connecting rod attaching parts 25 form, do not need bending namely can be clamped clamped by screw 36 after being drawstring through Lead guide holes 21, bracing wire is not easy gather mud, sandstone etc., not easily be suspended, therefore bracing wire not easy fracture, extend the service life of bracing wire, and effectively reduce bracing wire wearing and tearing, make rear derailleur speed change accurately and reliably, and effectively reduce bracing wire length.
Certainly, above-described embodiment is only a preferred scheme of the present utility model, can also have more change during practical application, such as, second connecting rod component arranges the alternative clamp screws such as wire clamp, bracing wire is clamped by regulating the aperture of wire clamp to open; Or stringing part is arranged on the middle part etc. of second connecting rod component, such change also can realize the purpose of this utility model.
Finally it is emphasized that the utility model is not limited to above-mentioned embodiment, the change etc. as the change of base component shape, connecting rod attaching parts and chain guide connection mode change also should be included in the utility model claim protection domain in.
Claims (10)
1. bicycle derailleur, comprises
Base component, supports a movable link, and described movable link connects chain guide, and described chain guide is provided with guide wheel, and described base component is provided with Lead guide holes;
First connecting rod component, is connected between described base component and described chain guide;
It is characterized in that, be also provided with:
Second connecting rod component, outside the side direction being arranged at described first connecting rod component;
Clamp screw, by the fastening stay wire of the described Lead guide holes through described base component on described second connecting rod component.
2. bicycle derailleur according to claim 1, is characterized in that:
Described first connecting rod component comprises the interior plate and outer panel that are parallel to each other, and described second connecting rod component is arranged on the outside of described interior plate.
3. bicycle derailleur according to claim 2, is characterized in that:
Described second connecting rod component is fixed on described interior plate by attaching parts.
4. bicycle derailleur according to claim 3, is characterized in that:
Described attaching parts is rivet.
5. bicycle derailleur according to claim 4, is characterized in that:
The quantity of described rivet is two, and two described rivets are installed on described second connecting rod component with different installation directions.
6. the bicycle derailleur according to any one of claim 1 to 5, is characterized in that:
Described clamp screw is arranged on described second connecting rod component one end away from described interior plate.
7. the bicycle derailleur according to any one of claim 1 to 5, is characterized in that:
Described second connecting rod component is provided with the tapped bore coordinated with described clamp screw.
8. bicycle derailleur according to claim 7, is characterized in that:
Described clamp screw is to screw in described tapped bore to screwing in described tapped bore or with the direction below direction cycle frame on cycle frame near the direction of cycle frame away from cycle frame.
9. the bicycle derailleur according to any one of claim 1 to 5, is characterized in that:
Described second connecting rod component is positioned at the side of described chain guide away from cycle frame.
10. bicycle derailleur according to claim 9, is characterized in that:
Described second connecting rod component and described chain guide lay respectively at the both sides of described base component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420478519.6U CN204096023U (en) | 2014-08-22 | 2014-08-22 | Bicycle derailleur |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420478519.6U CN204096023U (en) | 2014-08-22 | 2014-08-22 | Bicycle derailleur |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204096023U true CN204096023U (en) | 2015-01-14 |
Family
ID=52264469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420478519.6U Active CN204096023U (en) | 2014-08-22 | 2014-08-22 | Bicycle derailleur |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204096023U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106167072A (en) * | 2015-05-20 | 2016-11-30 | 展智绿能工业有限公司 | Multi-stage speed-changing tricycle driving device capable of being stepped backwards |
| CN106904246A (en) * | 2017-04-17 | 2017-06-30 | 珠海蓝图控制器科技有限公司 | A kind of bicycle selector |
| CN106995035A (en) * | 2017-04-17 | 2017-08-01 | 珠海蓝图控制器科技有限公司 | A kind of bicycle selector |
| CN107416117A (en) * | 2017-07-10 | 2017-12-01 | 宁波优升车业有限公司 | A kind of rear chiain-moving device of band gear chain block |
| CN107719573A (en) * | 2017-11-20 | 2018-02-23 | 珠海蓝图控制器科技有限公司 | Bicycle chain puller mounting structure and bicycle |
| CN109421891A (en) * | 2017-08-23 | 2019-03-05 | 株式会社岛野 | Bicycle derailleur |
| CN109774850A (en) * | 2017-11-14 | 2019-05-21 | 台湾微转股份有限公司 | Bicycle rear derailleur |
| US10894576B2 (en) | 2017-11-10 | 2021-01-19 | Ad-Ii Engineering Inc. | Bicycle rear derailleur |
| CN113173224A (en) * | 2017-03-20 | 2021-07-27 | Sram德国有限公司 | Rear derailleur for coaxial mounting |
-
2014
- 2014-08-22 CN CN201420478519.6U patent/CN204096023U/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106167072A (en) * | 2015-05-20 | 2016-11-30 | 展智绿能工业有限公司 | Multi-stage speed-changing tricycle driving device capable of being stepped backwards |
| CN113173224A (en) * | 2017-03-20 | 2021-07-27 | Sram德国有限公司 | Rear derailleur for coaxial mounting |
| CN106904246A (en) * | 2017-04-17 | 2017-06-30 | 珠海蓝图控制器科技有限公司 | A kind of bicycle selector |
| CN106995035A (en) * | 2017-04-17 | 2017-08-01 | 珠海蓝图控制器科技有限公司 | A kind of bicycle selector |
| CN106904246B (en) * | 2017-04-17 | 2022-05-03 | 珠海蓝图控制器科技有限公司 | Bicycle gear shifter |
| CN107416117A (en) * | 2017-07-10 | 2017-12-01 | 宁波优升车业有限公司 | A kind of rear chiain-moving device of band gear chain block |
| CN109421891A (en) * | 2017-08-23 | 2019-03-05 | 株式会社岛野 | Bicycle derailleur |
| US10894576B2 (en) | 2017-11-10 | 2021-01-19 | Ad-Ii Engineering Inc. | Bicycle rear derailleur |
| CN109774850A (en) * | 2017-11-14 | 2019-05-21 | 台湾微转股份有限公司 | Bicycle rear derailleur |
| CN107719573A (en) * | 2017-11-20 | 2018-02-23 | 珠海蓝图控制器科技有限公司 | Bicycle chain puller mounting structure and bicycle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204096023U (en) | Bicycle derailleur | |
| CN205186449U (en) | Human gravity drive bicycle | |
| KR20160045046A (en) | The new dropout and the frame comprising the same | |
| CN105620622B (en) | Portable scooter chassis | |
| CN203410583U (en) | Crank attaching device for bicycle | |
| RO129158B1 (en) | Quadricycle | |
| CN204750469U (en) | Mountain bike automatic transmission | |
| CN104525435B (en) | A kind of bicycle seat pole surface film coating device | |
| CN201424108Y (en) | Rowing bicycle | |
| CN203958404U (en) | The adjustable Electrical Bicycle in seat | |
| CN209064288U (en) | A kind of concealed built-in motor | |
| CN107031779A (en) | Manual brake operation unit, brake system and mountain bike, bicycle, bicycle | |
| CN205469587U (en) | Bicycle handlebar with adjustable | |
| CN202703808U (en) | Bicycle handlebar with internally-hidden wiring | |
| CN206107425U (en) | Bicycle concertina type tape trailer lamp fender device | |
| CN206049931U (en) | A kind of bicycle frame | |
| US20150096408A1 (en) | Dual-Drive Hub Device | |
| CN204150206U (en) | Bicycle derailleur | |
| CN205113617U (en) | Multi -functional exercycle of dual drive | |
| CN205396334U (en) | Take bicycle of gyroscope | |
| CN204587137U (en) | A kind of telescopic bicycle mudguard | |
| CN208842565U (en) | Handle bar structure | |
| CN203544274U (en) | Pedal rod reducing and labor-saving pedal mechanism for bike | |
| CN204095971U (en) | Tail mount structure after a kind of | |
| CN208906773U (en) | A kind of derailleur |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170309 Address after: 519090 Guangdong Province, Zhuhai city planning exhibition hall on the third floor of aviation city Jinwan District 312-43 room Patentee after: ZHUHAI LTWOO CONTROLLER TECHNOLOGY CO.,LTD. Address before: Xiangzhou District of Guangdong city of Zhuhai province Cuiwei Road 519000 No. 8 Garden 14 Building 1 unit 202 Patentee before: Liu Chunsheng |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 519000 building B-2, No. 8, Honghui fifth road, Shuanglin District, LIANGANG Industrial Zone, Jinwan District, Zhuhai City, Guangdong Province Patentee after: Zhuhai Blueprint Sports Technology Co.,Ltd. Address before: 519090 room 312-43, third floor, aviation new town planning exhibition hall, Jinwan District, Zhuhai City, Guangdong Province Patentee before: ZHUHAI LTWOO CONTROLLER TECHNOLOGY CO.,LTD. |