CN108116587B - Scooter for adjusting length of scooter body based on adjustment of included angle of stretching mechanism - Google Patents
Scooter for adjusting length of scooter body based on adjustment of included angle of stretching mechanism Download PDFInfo
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- CN108116587B CN108116587B CN201711081435.3A CN201711081435A CN108116587B CN 108116587 B CN108116587 B CN 108116587B CN 201711081435 A CN201711081435 A CN 201711081435A CN 108116587 B CN108116587 B CN 108116587B
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- vehicle body
- scooter
- supporting rod
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- base
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
- B62K15/00—Collapsible or foldable cycles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
- B62K5/00—Cycles with handlebars, equipped with three or more main road wheels
- B62K5/02—Tricycles
- B62K5/06—Frames for tricycles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Motorcycle And Bicycle Frame (AREA)
Abstract
The invention discloses a scooter for adjusting the length of a scooter body based on the adjustment of an included angle of a stretching mechanism, which comprises: a front vehicle body and a rear vehicle body; the front vehicle body and the rear vehicle body are connected through an extension mechanism; when the form of the stretching mechanism is changed, the distance between the front vehicle body and the rear vehicle body is reduced or increased; the stretching mechanism comprises a first support rod arranged on the front vehicle body and a second support rod arranged on the rear vehicle body; the first supporting rod and the second supporting rod are rotatably connected together; when first bracing piece and second bracing piece rotation each other, and the contained angle that constitutes changes, the interval of preceding automobile body and back automobile body is also along with reducing or increasing. The balance car controls the adjustment of the distance between the front car body and the rear car body through the adjustment of the extension mechanism, thereby meeting the requirements of users with different body types and improving the use interest of the users.
Description
Technical Field
The invention relates to the field of vehicles for riding instead of walk, in particular to a scooter for adjusting the length of a vehicle body based on the adjustment of an included angle of a stretching mechanism.
Background
The scooter is a necessary vehicle for people to go out, is widely applied in daily life, has various types, can replace the walking of people, is convenient and practical and improves the walking efficiency. However, most of the existing taxis only can realize a single function of riding instead of walking, and as the living standard of people is continuously improved, people pay more attention to diversified playing methods, and the taxis with the single function can not meet the requirements of people.
The prior scooter generally can only adopt one state for running, and the prior patent with the publication number of CN204659913U discloses a self-propelled vehicle which comprises a body, two wheels arranged at two sides below the body, two pedals respectively arranged at the outer sides of the two wheels and a direction control rod connected with the body; the two wheels are coaxial parallel wheels capable of differentiating, so that the self-propelled vehicle can be conveniently steered and conforms to the basic working form of the tire, the service life of the tire is prolonged, and the running safety is ensured; the direction control rod is a telescopic rod or a foldable rod, is suitable for people with different heights, and can be folded in a certain size in a non-driving state; the whole reasonable in design, it is small, convenient operation, trafficability characteristic and portability are good, use to get up and feel comfortable, accord with the demand of traveling for a long time.
This patent provides a telescopic rod for the scooter to be suitable for more people, but this is not enough.
Disclosure of Invention
The invention aims to provide a balance car which can be suitable for users with different body types.
The purpose of the invention is realized by the following technical scheme:
in addition, the invention also provides a scooter for adjusting the length of a scooter body based on the adjustment of the included angle of the stretching mechanism, which comprises:
a front vehicle body and a rear vehicle body;
the front vehicle body and the rear vehicle body are connected through an extension mechanism;
when the form of the stretching mechanism is changed, the distance between the front vehicle body and the rear vehicle body is reduced or increased; the stretching mechanism comprises a first support rod arranged on the front vehicle body and a second support rod arranged on the rear vehicle body; the first supporting rod and the second supporting rod are rotatably connected together; when first bracing piece and second bracing piece rotation each other, and the contained angle that constitutes changes, the interval of preceding automobile body and back automobile body is also along with reducing or increasing.
Furthermore, a first supporting base is arranged on the front vehicle body, and the first supporting rod is rotatably connected to the first supporting base. The first supporting rod is rotatably connected to the first supporting base, so that the first supporting rod can rotate relative to the second supporting rod and the first supporting base.
Furthermore, a first tightening screw is arranged at the matching position of the first supporting rod and the first supporting base. In this scheme, be provided with first elasticity screw between this first bracing piece and the first supporting pedestal, after the relative folding position that reaches needs of first bracing piece and second bracing piece, can drop first elasticity screw, can realize the position locking between first bracing piece and the second bracing piece, avoid not hard up problem.
Furthermore, the first supporting rod and the second supporting rod are rotatably connected together through a second loose screw. In this scheme, be provided with first elasticity screw between this first bracing piece and the second bracing piece, after the relative folding position that reaches needs of first bracing piece and second bracing piece, can drop the second elasticity screw, can realize the position locking between first bracing piece and the second bracing piece, avoid not hard up problem.
Furthermore, a second supporting base is arranged on the rear vehicle body, and the second supporting rod is rotatably connected to the second supporting base. In this scheme, the rotatable connection in the second of this second bracing piece supports the base, so, this second bracing piece can realize supporting the relative rotation between base and the first bracing piece with the second.
Further, the second support base is arranged along the axial direction of the vehicle body; a third loose screw is arranged at the matching position of the second supporting rod and the second supporting base;
the second support base is provided with a base avoidance groove extending along the axial direction of the vehicle body corresponding to the second support rod. In the scheme, the first elastic screw is arranged between the second supporting rod and the second supporting base, and after the first supporting rod and the second supporting rod are folded relatively to reach a required position, the third elastic screw can be dropped, so that the position between the first supporting rod and the second supporting rod can be locked, and the problem of looseness is avoided; in addition, this base along automobile body axial extension setting dodges the groove, mainly used cooperates with the second bracing piece, and the range of rotating to first bracing piece is great when the second bracing piece, and when the angle that both constitute was less, causes this second bracing piece and horizontally contained angle when less, and this second bracing piece can be partly brought into this base and dodge in the groove to enlarge adjustable angle range, thereby enlarge the interval control range between this preceding automobile body and the back automobile body.
Further, the size of the first supporting rod is larger than that of the second supporting rod;
the lower part of the first supporting rod is provided with a supporting rod avoiding groove which extends along the axial direction of the vehicle body and is used for accommodating the second supporting rod. In this scheme, the size of this first bracing piece is greater than the second bracing piece, make this bracing piece dodge the groove and can set up, and this bracing piece along the setting of automobile body axial extension dodges the groove, mainly used cooperatees with the second bracing piece, it is great to first bracing piece pivoted range when the second bracing piece, when the angle that both constitute is less, this second bracing piece can be partly included in this bracing piece dodges the groove, so that with adjustable angle range enlarge, thereby enlarge the interval control range between this preceding automobile body and the back automobile body.
Furthermore, a seat is arranged above the end part of the first support rod close to the second support rod. The seat enables a driver to sit down when needed, and the driver can easily drive or have a rest.
Furthermore, a telescopic supporting rod is arranged below the seat and used for adjusting the height of the seat. In this scheme, because this first bracing piece and second bracing piece can take place relative rotation, the driver will be difficult to adapt to the change by a wide margin of seat height, and the flexible bracing piece that sets up between this seat and the first bracing piece then can stretch out and draw back and adjust to the height of this seat is adjusted high or low in the convenience driver uses this seat.
Because the invention has set up the front car body and rear car body, and connect through the stretching mechanism between the front car body and rear car body, and the stretching mechanism can be adjusted between contracting and expanding the state, when the state changes, the interval between rear car body and the front car body will change correspondingly; therefore, the distance between the front vehicle body and the rear vehicle body is adjustable, when the body shape of a driver is higher, the stretching mechanism can be unfolded, so that the distance between the front vehicle body and the rear vehicle body is increased, and the driver can have a larger driving space; correspondingly, when the body shape of the driver is small, the space between the front vehicle body and the rear vehicle body can be reduced through the contraction and extension mechanism, so that the small driver can complete driving; moreover, the technical scheme of the invention is simple, easy to realize and beneficial to reducing the cost; in addition, the stretching mechanism mainly comprises a first supporting rod and a second supporting rod, the first supporting rod and the second supporting rod support relative rotation, after the rotation, the folding state and the folding degree of the stretching mechanism are changed, specifically, the included angle formed by the first supporting rod and the second supporting rod is changed, and the first supporting rod and the second supporting rod are respectively connected to the front vehicle body and the rear vehicle body, so that the front vehicle body and the rear vehicle body are stressed to move towards the direction close to or away from each other, and the adjustment of the distance is realized.
Drawings
Figure 1 is a first schematic view of a scooter with body length adjustment based on extension mechanism included angle adjustment according to an embodiment of the present invention;
FIG. 2 is a second schematic view of a scooter having body length adjusted based on the adjustment of the included angle of the extending mechanism in accordance with an embodiment of the present invention;
FIG. 3 is a third schematic view of a scooter having body length adjusted based on the adjustment of the included angle of the extending mechanism in accordance with an embodiment of the present invention;
figure 4 is a fourth schematic view of a scooter with body length adjustment based on extension mechanism included angle adjustment in accordance with an embodiment of the present invention.
Description of the drawings, 10, front body; 11. a first support base; 20. a rear vehicle body; 21. a second support base; 22. a base avoidance slot; 30. an extension mechanism; 31. a first support bar; 32. a second support bar; 33. a first loose screw; 34. a second loose screw; 35. a third loose screw; 36. the support rod avoids the groove; 40. a chair.
Detailed Description
Specific structural and functional details disclosed herein are merely representative and are provided for purposes of describing example embodiments of the present invention. The present invention may, however, be embodied in many alternate forms and should not be construed as limited to only the embodiments set forth herein.
In the description of the present invention, it is to be understood that the terms "center", "lateral", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified. Furthermore, the term "comprises" and any variations thereof is intended to cover non-exclusive inclusions.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used herein, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
The invention is further described with reference to the drawings and the preferred embodiments.
Fig. 1 is a first schematic view of a scooter for adjusting the length of a scooter body based on the adjustment of an included angle of a stretching mechanism according to an embodiment of the present invention, fig. 2 is a second schematic view of a scooter for adjusting the length of a scooter body based on the adjustment of an included angle of a stretching mechanism according to an embodiment of the present invention, fig. 3 is a third schematic view of a scooter for adjusting the length of a scooter body based on the adjustment of an included angle of a stretching mechanism according to an embodiment of the present invention, fig. 4 is a fourth schematic view of a scooter for adjusting the length of a scooter body based on the adjustment of an included angle of a stretching mechanism according to an embodiment of the present invention, as can be seen with reference to fig.:
a front vehicle body 10 and a rear vehicle body 20;
the front vehicle body 10 and the rear vehicle body 20 are connected by an extension mechanism 30;
when the extension mechanism 30 is changed in shape, the distance between the front vehicle body 10 and the rear vehicle body 20 is decreased or increased.
The front vehicle body of the balance vehicle can be set as a driven wheel or a single wheel or double wheels of a driving wheel, and the rear vehicle body can be set as double wheels of the driving wheel.
Because the invention has set up the front car body and rear car body, and connect through the stretching mechanism between the front car body and rear car body, and the stretching mechanism can be adjusted between contracting and expanding the state, when the state changes, the interval between rear car body and the front car body will change correspondingly; therefore, the distance between the front vehicle body and the rear vehicle body is adjustable, when the body shape of a driver is higher, the stretching mechanism can be unfolded, so that the distance between the front vehicle body and the rear vehicle body is increased, and the driver can have a larger driving space; correspondingly, when the body shape of the driver is small, the space between the front vehicle body and the rear vehicle body can be reduced through the contraction and extension mechanism, so that the small driver can complete driving; moreover, the technical scheme of the invention is simple, easy to realize and beneficial to reducing the cost.
Alternatively to this embodiment, the extension mechanism 30 includes a first support bar 31 provided on the front vehicle body 10, and a second support bar 32 provided on the rear vehicle body 20;
the first support rod 31 and the second support rod 32 are rotatably connected together;
when the first support bar 31 and the second support bar 32 rotate with each other and the included angle is changed, the distance between the front vehicle body 10 and the rear vehicle body 20 is reduced or increased. In this scheme, this extension mechanism mainly includes first bracing piece and second bracing piece, and this first bracing piece and second bracing piece support relative rotation, after rotating, its folding state and degree will change, and is concrete, and the contained angle that these two constitute changes, and on first bracing piece and second bracing piece were connected to preceding automobile body and back automobile body respectively, therefore, this preceding automobile body and back automobile body will be atress to the direction motion of being close to or keeping away from to realize the regulation of interval.
In an alternative embodiment, the front vehicle body 10 is provided with a first supporting base 11, and the first supporting rod 31 is rotatably connected to the first supporting base 11. The first supporting rod is rotatably connected to the first supporting base, so that the first supporting rod can rotate relative to the second supporting rod and the first supporting base.
In an alternative embodiment, a first loose screw 33 is disposed at the matching position of the first supporting rod 31 and the first supporting base 32. In this scheme, be provided with first elasticity screw between this first bracing piece and the first supporting pedestal, after the relative folding position that reaches needs of first bracing piece and second bracing piece, can drop first elasticity screw, can realize the position locking between first bracing piece and the second bracing piece, avoid not hard up problem.
In an alternative embodiment, the first support bar 31 and the second support bar 32 are rotatably connected together by a second elastic screw 34. In this scheme, be provided with first elasticity screw between this first bracing piece and the second bracing piece, after the relative folding position that reaches needs of first bracing piece and second bracing piece, can drop the second elasticity screw, can realize the position locking between first bracing piece and the second bracing piece, avoid not hard up problem.
In an alternative embodiment, the rear vehicle body 20 is provided with a second supporting base 21, and the second supporting rod 32 is rotatably connected to the second supporting base 21. In this scheme, the rotatable connection in the second of this second bracing piece supports the base, so, this second bracing piece can realize supporting the relative rotation between base and the first bracing piece with the second.
In an alternative embodiment, the second support base 21 is arranged along the axial direction of the vehicle body; a third loose screw 35 is arranged at the matching position of the second support rod 32 and the second support base 21;
the second support base 21 is provided with a base escape groove 22 extending in the axial direction of the vehicle body corresponding to the second support rod 32. In the scheme, the first elastic screw is arranged between the second supporting rod and the second supporting base, and after the first supporting rod and the second supporting rod are folded relatively to reach a required position, the third elastic screw can be dropped, so that the position between the first supporting rod and the second supporting rod can be locked, and the problem of looseness is avoided; in addition, this base along automobile body axial extension setting dodges the groove, mainly used cooperates with the second bracing piece, and the range of rotating to first bracing piece is great when the second bracing piece, and when the angle that both constitute was less, causes this second bracing piece and horizontally contained angle when less, and this second bracing piece can be partly brought into this base and dodge in the groove to enlarge adjustable angle range, thereby enlarge the interval control range between this preceding automobile body and the back automobile body.
In an optional embodiment, the size of the first supporting rod 31 is larger than that of the second supporting rod 32;
the lower portion of the first support rod 31 is provided with a rod escape groove 36 extending in the axial direction of the vehicle body for accommodating the second support rod 32. In the scheme, the size of the first support rod is larger than that of the second support rod, so that the support rod avoidance groove can be arranged, the support rod avoidance groove which is arranged along the axial direction of the vehicle body in an extending mode is mainly used for being matched with the second support rod, when the rotation amplitude of the second support rod to the first support rod is large and the angle formed by the first support rod and the second support rod is small, the second support rod can be partially accommodated in the support rod avoidance groove, so that the adjustable angle range is expanded, and the distance adjusting range between the front vehicle body and the rear vehicle body is expanded; of course, the support rod avoiding groove also has the function of accommodating and reducing the occupied volume of the balance car.
In an alternative embodiment, a seat 40 is disposed above the end of the first support bar 31 near the second support bar 32. The seat enables a driver to sit down when needed, and the driver can easily drive or have a rest.
In an alternative embodiment, a telescopic support rod (not shown) is disposed under the seat 40 for adjusting the height of the seat 40. In this scheme, because this first bracing piece and second bracing piece can take place relative rotation, the driver will be difficult to adapt to the change by a wide margin of seat height, and the flexible bracing piece that sets up between this seat and the first bracing piece then can stretch out and draw back and adjust to the height of this seat is adjusted high or low in the convenience driver uses this seat.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (6)
1. The utility model provides a scooter that carries out automobile body length adjustment based on extension mechanism contained angle adjustment which characterized in that includes:
a front vehicle body and a rear vehicle body;
the front vehicle body and the rear vehicle body are connected through an extension mechanism;
when the form of the stretching mechanism is changed, the distance between the front vehicle body and the rear vehicle body is reduced or increased;
the stretching mechanism comprises a first support rod arranged on the front vehicle body and a second support rod arranged on the rear vehicle body;
the first supporting rod and the second supporting rod are rotatably connected together;
when the first supporting rod and the second supporting rod rotate mutually and the formed included angle is changed, the distance between the front vehicle body and the rear vehicle body is reduced or increased;
the size of the first supporting rod is larger than that of the second supporting rod;
the lower part of the first support rod is provided with a support rod avoiding groove which extends along the axial direction of the vehicle body and is used for accommodating the second support rod;
the rear car body is provided with a second supporting base, and the second supporting base is provided with a base avoiding groove extending along the axial direction of the car body corresponding to the second supporting rod.
2. A scooter based on adjustment of the included angle of the extension mechanism for providing length adjustment as claimed in claim 1, wherein the front body is provided with a first support base, said first support rod being rotatably connected to said first support base.
3. A scooter based on adjustment of included angle of extension mechanism for length adjustment as claimed in claim 2, wherein the first support rod and the first support base are provided with a first tightening screw at their mating location.
4. A scooter according to claim 1 wherein the first support bar and the second support bar are pivotally connected together by a second turnbuckle screw.
5. A scooter based on adjustment of the included angle of the extension mechanism for length adjustment as claimed in claim 1, wherein the rear body is provided with a second support base, said second support bar being rotatably connected to said second support base.
6. A scooter according to claim 5 wherein the second support base is axially disposed along the scooter body; a third loose screw is arranged at the matching position of the second supporting rod and the second supporting base;
the second support base is provided with a base avoidance groove extending along the axial direction of the vehicle body corresponding to the second support rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711081435.3A CN108116587B (en) | 2017-11-03 | 2017-11-03 | Scooter for adjusting length of scooter body based on adjustment of included angle of stretching mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711081435.3A CN108116587B (en) | 2017-11-03 | 2017-11-03 | Scooter for adjusting length of scooter body based on adjustment of included angle of stretching mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108116587A CN108116587A (en) | 2018-06-05 |
| CN108116587B true CN108116587B (en) | 2020-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711081435.3A Active CN108116587B (en) | 2017-11-03 | 2017-11-03 | Scooter for adjusting length of scooter body based on adjustment of included angle of stretching mechanism |
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| CN2435311Y (en) * | 2000-08-09 | 2001-06-20 | 高越 | Foldable bicycle |
| CN2690276Y (en) * | 2002-12-30 | 2005-04-06 | 麦贤生 | Folding bicycle frame |
| DE102004005056A1 (en) * | 2004-02-01 | 2005-08-25 | Ralf Esser | Folding ski bike for sliding downhill on ski piste has front and rear frame members on central pivot with fastening bolts holding front and rear ski runners on pivoting mountings |
| JP2009143339A (en) * | 2007-12-13 | 2009-07-02 | Tomoyuki Shimada | Folding bicycle |
| CN201694327U (en) * | 2010-06-01 | 2011-01-05 | 中原工学院信息商务学院 | Foldable bicycle |
| CN202243876U (en) * | 2011-10-27 | 2012-05-30 | 吴慧勇 | Folding bicycle |
| CN202966546U (en) * | 2012-12-19 | 2013-06-05 | 虞仙良 | Folding electromobile |
| CN106379462A (en) * | 2016-09-26 | 2017-02-08 | 陈裕俊 | Multifunctional fitness entertainment bicycle |
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2017
- 2017-11-03 CN CN201711081435.3A patent/CN108116587B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2435311Y (en) * | 2000-08-09 | 2001-06-20 | 高越 | Foldable bicycle |
| CN2690276Y (en) * | 2002-12-30 | 2005-04-06 | 麦贤生 | Folding bicycle frame |
| DE102004005056A1 (en) * | 2004-02-01 | 2005-08-25 | Ralf Esser | Folding ski bike for sliding downhill on ski piste has front and rear frame members on central pivot with fastening bolts holding front and rear ski runners on pivoting mountings |
| JP2009143339A (en) * | 2007-12-13 | 2009-07-02 | Tomoyuki Shimada | Folding bicycle |
| CN201694327U (en) * | 2010-06-01 | 2011-01-05 | 中原工学院信息商务学院 | Foldable bicycle |
| CN202243876U (en) * | 2011-10-27 | 2012-05-30 | 吴慧勇 | Folding bicycle |
| CN202966546U (en) * | 2012-12-19 | 2013-06-05 | 虞仙良 | Folding electromobile |
| CN106379462A (en) * | 2016-09-26 | 2017-02-08 | 陈裕俊 | Multifunctional fitness entertainment bicycle |
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| CN108116587A (en) | 2018-06-05 |
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Effective date of registration: 20201123 Address after: 518000 Guangdong Shenzhen Baoan District Xixiang street, Po Yuan Road, No. 1065, F518 fashion creative garden F13 101, 102 Patentee after: SHENZHEN AOTU INTELLIGENT TECHNOLOGY Co.,Ltd. Address before: Nanshan District Xili street Shahe road Shenzhen 518000 Guangdong Province nine Xiang Ling Xi Qu No. 12 Room 201 Patentee before: SHENZHEN YUANCHUANG WUXIAN TECHNOLOGY Co.,Ltd. |
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