CN210653635U - Connecting mechanism for folding and pitch-changing of blades - Google Patents
Connecting mechanism for folding and pitch-changing of blades Download PDFInfo
- Publication number
- CN210653635U CN210653635U CN201921429954.9U CN201921429954U CN210653635U CN 210653635 U CN210653635 U CN 210653635U CN 201921429954 U CN201921429954 U CN 201921429954U CN 210653635 U CN210653635 U CN 210653635U
- Authority
- CN
- China
- Prior art keywords
- arm
- concave
- arms
- parallel arm
- paddle
- 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
Images
Landscapes
- Toys (AREA)
Abstract
The utility model discloses a coupling mechanism that is used for paddle to fold and displacement, include: two paddle clamps and a hub. Each paddle clamp comprises a first parallel arm, a second parallel arm, a pin shaft and a convex arm; the first parallel arm and the second parallel arm are fixed on the convex arm through respective end parts; the propeller hub comprises two concave arms, a connecting ring, a connecting shaft and two force guide arms, the two concave arms are symmetrically fixed on two transverse sides of the connecting ring, each concave arm is correspondingly connected with one convex arm through a third connecting hole pin shaft, the connecting ring is sleeved on the rotor wing connecting seat, and the connecting shaft rotatably connects the connecting ring and the rotor wing connecting seat; two force guide arms are fixed on the two longitudinal sides of the connecting ring. The utility model is used for can realize the two-way folding of paddle when the paddle is connected, have the characteristics that reduce the storage space, simultaneously, directly set up the guide arm in coupling mechanism and carry out the displacement and pass power for the relation of connection is simple when the displacement drives, has the simple and convenient technological effect of structure.
Description
Technical Field
The utility model belongs to the technical field of unmanned aerial vehicle, in particular to a coupling mechanism that is used for the paddle to fold and displacement.
Background
Unmanned aerial vehicle is called unmanned aerial vehicle for short, and is unmanned aerial vehicle operated by radio remote control equipment and self-contained program control device. The machine has no cockpit, but is provided with an automatic pilot, a program control device, an information acquisition device and other equipment. The personnel on the ground, the naval vessel or the mother aircraft remote control station can track, position, remotely control, telemeter and digitally transmit the personnel through equipment such as a radar. The airplane can take off like a common unmanned aerial vehicle or launch and lift off by a boosting rocket under the radio remote control, and can also be carried to the air by a mother airplane to launch and fly. Unmanned aerial vehicles are often used for inspection of power transmission lines in mountainous areas and across large rivers, and for inspection of power transmission lines during ice disasters, flood disasters, earthquakes, landslides, and nights.
The existing coaxial unmanned aerial vehicle is controlled by the full variable pitch of an upper blade and a lower blade, when the existing coaxial unmanned aerial vehicle is stored, a connecting mechanism for folding the blades can only be stored in a transverse folding mode, the connecting mechanism only has the transverse folding function, when the unmanned aerial vehicle is large in size (such as a four-rotor type or a six-rotor type), the blades of the unmanned aerial vehicle can be connected and transversely folded only through the transversely-folded connecting mechanism because the unmanned aerial vehicle is large in size and needs to occupy space, but for some small unmanned aerial vehicles (mini cylinder type unmanned aerial vehicles and the like), the unmanned aerial vehicle is small in size, and the blade of the unmanned aerial vehicle connected and transversely folded only through the transversely-folded connecting mechanism cannot meet the storage requirement, so that the technical defect of large occupied space exists, meanwhile, for the full variable pitch control of the upper blade and the lower blade, the traditional connecting mechanism is also additionally provided with a variable pitch driving structure used between a motor and a, the connection relationship is complex, and the structural design is not simple and convenient.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem how to provide a coupling mechanism that is used for the paddle to fold and displacement, can realize horizontal, vertical both-way folding of paddle when being applied to unmanned aerial vehicle's paddle and connecting, have the characteristics that reduce storage space, simultaneously, directly set up the guide arm in coupling mechanism and carry out the displacement and pass power for the relation of connection is simple when the displacement drive, also possesses the characteristics that the displacement passed power carrying out the paddle both-way folding in-process, has the simple and convenient technological effect of structure.
In order to solve the technical problem, the utility model provides a coupling mechanism that is used for the paddle to fold and displacement, include: each paddle clamp comprises a first parallel arm, a second parallel arm, a pin shaft and a convex arm; the first parallel arm is provided with a first connecting hole, the second parallel arm is provided with a second connecting hole, the convex arm is provided with a third connecting hole, the first parallel arm and the second parallel arm are fixed on the convex arm through respective end parts and form a groove structure with the convex arm, so that two blades of the unmanned aerial vehicle are respectively arranged in the corresponding groove structure through the end parts, and sequentially penetrate through the first connecting hole, the end parts of the blades and the second connecting hole through the pin shaft to connect any blade with the corresponding blade clamp pin shaft; the propeller hub comprises two concave arms, a connecting ring, a connecting shaft and two force guide arms for conducting driving force, the two concave arms are symmetrically fixed on the two transverse sides of the connecting ring, each concave arm is correspondingly connected with one convex arm through a third connecting hole pin shaft, and a rotor wing connecting seat sleeved on a rotor wing shaft of the unmanned aerial vehicle is provided with a fourth connecting hole; a fifth connecting hole corresponding to the fourth connecting hole is formed in the connecting ring, the connecting ring is sleeved on the rotor wing connecting seat, and the connecting shaft sequentially penetrates through the fifth connecting hole and the fourth connecting hole to rotatably connect the connecting ring and the rotor wing connecting seat; the two guide force arms are symmetrically fixed on the two longitudinal sides of the connecting ring and are respectively movably connected with the variable pitch assembly, so that the variable pitch assembly drives the two guide force arms to drive the connecting ring to rotate around the connecting shaft.
Optionally, the first parallel arm and the second parallel arm are parallel to each other.
Optionally, the folding angle of the first parallel arm and/or the second parallel arm relative to the concave arm is 0-90 °.
Optionally, the folding angle of the paddle relative to the paddle clip is 0-180 °.
Optionally, the transverse two sides of the connecting ring are close to the corresponding concave arms, and weight reduction concave holes for reducing weight are formed in the positions of the transverse two sides of the connecting ring, which correspond to the concave arms.
Optionally, the linear direction of the two guide arms is perpendicular to the linear direction of the two concave arms.
Optionally, the linear direction of the two guide arms is perpendicular to the connecting shaft.
Optionally, the linear direction of the two concave arms is parallel to the connecting shaft.
Optionally, the weight-reducing concave hole is of a fan-shaped structure.
Optionally, the straight line where the connecting shaft is located is the central axis of the fan-shaped structure.
Has the advantages that:
the utility model relates to a coupling mechanism that is used for the paddle to fold and displacement, include: two paddle clamps and a hub. Each paddle clamp comprises a first parallel arm, a second parallel arm, a pin shaft and a convex arm; the first parallel arm is provided with a first connecting hole, the second parallel arm is provided with a second connecting hole, the convex arm is provided with a third connecting hole, and the first parallel arm and the second parallel arm are fixed on the convex arm through respective end parts and form a groove structure with the convex arm; the propeller hub comprises two concave arms, a connecting ring, a connecting shaft and two force guide arms, the two concave arms are symmetrically fixed on the two transverse sides of the connecting ring, each concave arm is correspondingly connected with one convex arm through the third connecting hole pin shaft, and a rotor wing connecting seat on the rotor wing shaft is provided with a fourth connecting hole; the connecting ring is provided with a fifth connecting hole corresponding to the fourth connecting hole, the connecting ring is sleeved on the rotor wing connecting seat, and the connecting shaft sequentially penetrates through the fifth connecting hole and the fourth connecting hole to rotatably connect the connecting ring and the rotor wing connecting seat; the two force guide arms are symmetrically fixed on the two longitudinal sides of the connecting ring and are respectively movably connected with the variable pitch assembly. The utility model discloses can realize horizontal, vertical two-way folding of paddle when being applied to unmanned aerial vehicle's paddle and connecting, have the characteristics that reduce the storage space, simultaneously, directly set up the guide arm in coupling mechanism and carry out the displacement and pass power for the relation of connection is simple when the displacement drive, also possesses the characteristics that the displacement passed power carrying out the two-way folding in-process of paddle, has the simple and convenient technological effect of structure.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of a connection mechanism according to an embodiment of the present invention.
Fig. 2 is a schematic view of a connection mechanism according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art belong to the protection scope of the present invention; the "and/or" keyword "referred to in this embodiment represents sum or two cases, in other words, a and/or B mentioned in the embodiment of the present invention represents two cases of a and B, A or B, and describes three states where a and B exist, such as a and/or B, representing: only A does not include B; only B does not include A; including A and B.
Also, in embodiments of the invention, when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and similar expressions used in the embodiments of the present invention are for illustrative purposes only and are not intended to limit the present invention.
Referring to fig. 1-2, the present invention provides a connecting mechanism for folding and pitch changing of blades, comprising: two paddle holders 4 and a hub 5. Wherein each paddle clamp 4 comprises a first parallel arm 41, a second parallel arm 42, a pin 43 and a convex arm 44; the first parallel arm 41 is provided with a first connecting hole 45, the second parallel arm 42 is provided with a second connecting hole 46, the convex arm 44 is provided with a third connecting hole 47, and the first parallel arm 41 and the second parallel arm 42 are fixed on the convex arm 44 through respective end parts and form a groove structure with the convex arm 44; the propeller hub 5 comprises two concave arms 51, a connecting ring 52, a connecting shaft 53 and two force guiding arms 54, wherein the two concave arms 51 are symmetrically fixed at two transverse sides of the connecting ring 52, each concave arm 51 is in pin connection with one convex arm 44 through the third connecting hole 47, and the rotor wing connecting seat 3 on the rotor wing shaft 2 is provided with a fourth connecting hole 55; a fifth connecting hole 56 corresponding to the fourth connecting hole 55 is formed in the connecting ring 52, the connecting ring 52 is sleeved on the rotor wing connecting seat 3, and the connecting shaft 53 sequentially penetrates through the fifth connecting hole 56 and the fourth connecting hole 54 to rotatably connect the connecting ring 52 with the rotor wing connecting seat 3; the two force guide arms 54 are symmetrically fixed on two longitudinal sides of the connecting ring 52 and are movably connected with the variable pitch assembly 7 respectively. The utility model discloses can realize horizontal, vertical both-way folding of paddle when being applied to unmanned aerial vehicle's paddle and connecting, have the characteristics that reduce the storage space, simultaneously, directly set up the guide arm 54 in coupling mechanism and carry out the displacement and pass power for the relation of connection is simple when the displacement drive, also possesses the characteristics that the displacement passed power carrying out the two-way folding in-process of paddle, has the simple and convenient technological effect of structure.
For further explanation of the present invention, please refer to the following explanation to explain the technical problems to be solved and the technical effects to be achieved.
The utility model provides a coupling mechanism for paddle is folding and displacement is applied to unmanned aerial vehicle, include: two paddle clamps 4, each paddle clamp 4 comprising a first parallel arm 41, a second parallel arm 42, a pin 43 and a protruding arm 44. The first parallel arm 41 is provided with a first connecting hole 45, the second parallel arm 42 is provided with a second connecting hole 46, the convex arm 44 is provided with a third connecting hole 47, the first parallel arm 41 and the second parallel arm 42 are fixed on the convex arm 44 through respective end parts and form a groove structure with the convex arm 44, so that any one blade 1 is arranged in the corresponding groove structure through the end part of the blade 1, and sequentially penetrates through the first connecting hole 45, the end part of the blade 1 and the second connecting hole 46 through a pin shaft 43 to pin-connect any one blade 1 with a corresponding blade clamp 4;
that is, in the embodiment of the present invention, it can be understood that the two symmetric paddle holders 4 are disposed on the left and right sides of the connecting mechanism for mounting the two symmetric paddles 1, and each of the two symmetric paddle holders 4 is provided with a groove structure formed by the first parallel arm 41, the second parallel arm 42 and the protruding arm 44, so that the end of the paddle 1 can be inserted into the groove structure.
In addition, in the embodiment of the present invention, the propeller hub 5 may include two concave arms 51, a connection ring 52, a connection shaft 53 and two force guiding arms 54 for conducting driving force, the two concave arms 51 are symmetrically fixed on two lateral sides of the connection ring 52, each concave arm 51 is connected to one convex arm 44 through a third connection hole 47, the connection ring 52 is provided with a fifth connection hole 56 corresponding to a fourth connection hole 55, the connection ring 52 is sleeved on the rotor wing connection seat 3, the rotor wing connection seat 3 is sleeved on the rotor wing shaft 2, and the connection shaft 53 sequentially passes through the fifth connection hole 56 and the fourth connection hole 55 to rotatably connect the connection ring 62 and the rotor wing connection seat 3; the two guide arms 54 are symmetrically fixed on two longitudinal sides of the connecting ring 52 and are respectively movably connected with the variable pitch assembly 7, so that the variable pitch assembly 7 drives the two guide arms to drive the connecting ring to rotate around the connecting shaft.
It should be also noted that each paddle clip 4 is connected with a corresponding concave arm 51 of the paddle hub 5 through a convex arm 44 of the paddle clip, so that the paddle clip 4 can be rotated and folded in the longitudinal direction around the concave arm 51 (that is, the paddle clip 4) through the pin connection, and meanwhile, because the end portions of the two blades 1 are inserted into the groove structure and are also connected through the pin of the pin 43, the blades 1 can be rotated and folded in the transverse direction relative to the paddle clip 4, so that the transverse folding and the longitudinal folding of the blades 1 in the flying device storage process are realized, the storage volume of the flying device is reduced, and the technical effect of saving the occupied space is achieved.
Preferably, the first parallel arm and the second parallel arm are parallel to each other. The first parallel arm and the second parallel arm are parallel to each other. The folding angle of the first parallel arm and/or the second parallel arm with respect to the first concave arm is 0 ° -90 ° (can be understood as folding down 90 ° from a horizontal position). The folding angle of the first and/or second parallel arm with respect to the concave arm is 0 ° -90 ° (which can be understood as 90 ° folded down from a horizontal position). The folding angle of the first paddle relative to the first paddle clip is 0-180 ° (which can be understood as folding from the leftmost side of the horizontal position to the rightmost side of the horizontal position); the folding angle of the paddle relative to the paddle clip is 0-180 (which can be understood as folding from the leftmost side of the horizontal position to the rightmost side of the horizontal position). And weight reduction concave holes 6 for reducing weight are arranged at the positions, close to the corresponding concave arms, of the two transverse sides of the connecting ring. The linear direction of the two guide arms is perpendicular to the linear direction of the two concave arms. The linear direction of the two guide arm is perpendicular to the connecting shaft. The linear direction of the two concave arms is parallel to the connecting shaft. The weight-reducing concave holes 6 are of fan-shaped structures. The straight line where the connecting shaft is located is the central axis of the fan-shaped structure.
To sum up, the utility model provides a coupling mechanism that is used for the paddle to fold and displacement, include: two paddle holders 4 and a hub 5. Wherein each paddle clamp 4 comprises a first parallel arm 41, a second parallel arm 42, a pin 43 and a convex arm 44; the first parallel arm 41 is provided with a first connecting hole 45, the second parallel arm 42 is provided with a second connecting hole 46, the convex arm 44 is provided with a third connecting hole 47, and the first parallel arm 41 and the second parallel arm 42 are fixed on the convex arm 44 through respective end parts and form a groove structure with the convex arm 44; the propeller hub 5 comprises two concave arms 51, a connecting ring 52, a connecting shaft 53 and two force guiding arms 54, wherein the two concave arms 51 are symmetrically fixed at two transverse sides of the connecting ring 52, each concave arm 51 is in pin connection with one convex arm 44 through the third connecting hole 47, and the rotor wing connecting seat 3 on the rotor wing shaft 2 is provided with a fourth connecting hole 55; a fifth connecting hole 56 corresponding to the fourth connecting hole 55 is formed in the connecting ring 52, the connecting ring 52 is sleeved on the rotor wing connecting seat 3, and the connecting shaft 53 sequentially penetrates through the fifth connecting hole 56 and the fourth connecting hole 54 to rotatably connect the connecting ring 52 with the rotor wing connecting seat 3; the two force guide arms 54 are symmetrically fixed on two longitudinal sides of the connecting ring 52 and are movably connected with the variable pitch assembly 7 respectively. The utility model discloses can realize horizontal, vertical both-way folding of paddle when being applied to unmanned aerial vehicle's paddle and connecting, have the characteristics that reduce the storage space, simultaneously, directly set up the guide arm 54 in coupling mechanism and carry out the displacement and pass power for the relation of connection is simple when the displacement drive, also possesses the characteristics that the displacement passed power carrying out the two-way folding in-process of paddle, has the simple and convenient technological effect of structure.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the examples, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.
Claims (10)
1. A connecting mechanism for folding and pitch-changing of blades is characterized by comprising:
each paddle clamp comprises a first parallel arm, a second parallel arm, a pin shaft and a convex arm; the first parallel arm is provided with a first connecting hole, the second parallel arm is provided with a second connecting hole, the convex arm is provided with a third connecting hole, the first parallel arm and the second parallel arm are fixed on the convex arm through respective end parts and form a groove structure with the convex arm, so that two blades of the unmanned aerial vehicle are respectively arranged in the corresponding groove structure through the end parts, and sequentially penetrate through the first connecting hole, the end parts of the blades and the second connecting hole through the pin shaft to connect any blade with the corresponding blade clamp pin shaft;
the propeller hub comprises two concave arms, a connecting ring, a connecting shaft and two force guide arms for conducting driving force, the two concave arms are symmetrically fixed on the two transverse sides of the connecting ring, each concave arm is correspondingly connected with one convex arm through a third connecting hole pin shaft, and a rotor wing connecting seat sleeved on a rotor wing shaft of the unmanned aerial vehicle is provided with a fourth connecting hole; a fifth connecting hole corresponding to the fourth connecting hole is formed in the connecting ring, the connecting ring is sleeved on the rotor wing connecting seat, and the connecting shaft sequentially penetrates through the fifth connecting hole and the fourth connecting hole to rotatably connect the connecting ring and the rotor wing connecting seat; the two guide force arms are symmetrically fixed on the two longitudinal sides of the connecting ring and are respectively movably connected with the variable pitch assembly, so that the variable pitch assembly drives the two guide force arms to drive the connecting ring to rotate around the connecting shaft.
2. The attachment mechanism for blade folding and pitch change of claim 1, wherein:
the first parallel arm and the second parallel arm are parallel to each other.
3. The attachment mechanism for blade folding and pitch change of claim 2, wherein:
the folding angle of the first parallel arm and/or the second parallel arm relative to the concave arm is 0-90 degrees.
4. A connection mechanism for blade folding and pitch change as claimed in claim 3, wherein:
the folding angle of the paddle relative to the paddle clamp is 0-180 degrees.
5. The attachment mechanism for blade folding and pitch change of claim 4, wherein:
and the transverse two sides of the connecting ring are close to the corresponding concave arms, and weight reduction concave holes for reducing weight are arranged on the transverse two sides of the connecting ring.
6. The attachment mechanism for blade folding and pitch change of claim 5, wherein:
the linear direction of the two guide arms is perpendicular to the linear direction of the two concave arms.
7. The attachment mechanism for blade folding and pitch change of claim 6, wherein:
the linear direction of the two guide arm is perpendicular to the connecting shaft.
8. The attachment mechanism for blade folding and pitch change of claim 7, wherein:
the linear direction of the two concave arms is parallel to the connecting shaft.
9. The attachment mechanism for blade folding and pitch change of claim 8, wherein:
the weight-reducing concave hole is of a fan-shaped structure.
10. The attachment mechanism for blade folding and pitch change of claim 9, wherein:
the straight line where the connecting shaft is located is the central axis of the fan-shaped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921429954.9U CN210653635U (en) | 2019-08-30 | 2019-08-30 | Connecting mechanism for folding and pitch-changing of blades |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921429954.9U CN210653635U (en) | 2019-08-30 | 2019-08-30 | Connecting mechanism for folding and pitch-changing of blades |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210653635U true CN210653635U (en) | 2020-06-02 |
Family
ID=70843359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921429954.9U Active CN210653635U (en) | 2019-08-30 | 2019-08-30 | Connecting mechanism for folding and pitch-changing of blades |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210653635U (en) |
-
2019
- 2019-08-30 CN CN201921429954.9U patent/CN210653635U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205707297U (en) | Fixed-wing unmanned plane | |
| EP3299290B1 (en) | Rotating proprotor arrangement for a tiltrotor aircraft | |
| CN200995782Y (en) | Airplane | |
| CN108100212B (en) | Small aspect ratio self-adaptive variant flying wing layout fighter | |
| US20160097441A1 (en) | Compound motion structure | |
| CN113753230B (en) | Aircraft, wing assembly and aerocar | |
| CN103332293A (en) | Tilting double-duct subminiature unmanned plane | |
| US10933986B2 (en) | Blade fold method and apparatus for a tilt rotor hub | |
| US20200039632A1 (en) | Wind Energy Kite Tail | |
| CN105329443A (en) | Ornithopter capable of realizing flapping-reversing coupled motion | |
| CN104691737A (en) | Support arm assembly for multi-rotor aircrafts, rack and aircraft | |
| CN206644995U (en) | Based on the super high-aspect-ratio aircraft for self-deploying folding wings technology | |
| US10703460B2 (en) | Folding spindle and bearing assembly in a folding rotor blade assembly | |
| CN210653635U (en) | Connecting mechanism for folding and pitch-changing of blades | |
| US20190185153A1 (en) | Outboard centrifugal force bearing with inboard blade fold axis in a folding rotor blade assembly | |
| CN115520378A (en) | Double-folding compact layout coaxial double-rotor aircraft | |
| CN205113712U (en) | Two degree of freedom flapping wing aircraft | |
| US10569869B2 (en) | Compact folding yoke in a folding rotor blade assembly | |
| CN107600393A (en) | The collapsible undercarriage and its foldable structure of balloon borne near space solar energy unmanned plane | |
| US10703469B2 (en) | Compact folding yoke with flexible yoke arms in a folding rotor blade assembly | |
| US10577079B2 (en) | Dual blade fold bolts and inboard centrifugal bearing in a folding rotor blade assembly | |
| CN110435878B (en) | Single-layer variable-pitch coaxial structure for unmanned aerial vehicle | |
| CN104477383A (en) | Three-dimensional flapping flapping-wing drive mechanism | |
| CN209290684U (en) | A kind of ground effect vehicle | |
| CN210653631U (en) | Bidirectional foldable coaxial structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 519080 Room 401, 4th floor, building 10, science and Technology Innovation Park, 1 Jintang Road, Tangjiawan Town, high tech Zone, Zhuhai City, Guangdong Province Patentee after: Zhuhai Xuanji Technology Co.,Ltd. Address before: 519000 unit J, room 613, 6th floor, main building, No.10, Keji 1st Road, Gangwan Avenue, Tangjiawan Town, high tech Zone, Zhuhai City, Guangdong Province Patentee before: Zhuhai AVIC Smart Technology Co.,Ltd. |