CN109435687A - A kind of novel wheel-type vehicle multistage chain conveyer and steering mechanism - Google Patents
A kind of novel wheel-type vehicle multistage chain conveyer and steering mechanism Download PDFInfo
- Publication number
- CN109435687A CN109435687A CN201811267507.8A CN201811267507A CN109435687A CN 109435687 A CN109435687 A CN 109435687A CN 201811267507 A CN201811267507 A CN 201811267507A CN 109435687 A CN109435687 A CN 109435687A
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- shaft
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- 208000032369 Primary transmission Diseases 0.000 claims abstract description 4
- 230000005540 biological transmission Effects 0.000 claims description 11
- 230000006978 adaptation Effects 0.000 abstract 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/34—Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles
- B60K17/342—Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles having a longitudinal, endless element, e.g. belt or chain, for transmitting drive to wheels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D11/00—Steering non-deflectable wheels; Steering endless tracks or the like
- B62D11/02—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides
- B62D11/06—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Automatic Cycles, And Cycles In General (AREA)
- Arrangement And Driving Of Transmission Devices (AREA)
Abstract
The present invention discloses a kind of multistage chain conveyer of novel wheel-type vehicle and steering mechanism, transfer gear both ends couple with speed changer, output axle shaft respectively, driving wheel level-one drive sprocket is connected on output axle shaft, and driving wheel level-one drive sprocket is coupled by driving wheel chain with front driving wheel level-one driven sprocket, rear drive sprocket level-one driven sprocket；Stretching wheel assembly, which is fixed in inner support plate, to be mounted between primary transmission sprocket wheel, front driving wheel level-one driven sprocket is coupled by input shaft with driving wheel steering mechanism assembly, driving wheel steering mechanism assembly is coupled by take-off (propeller) shaft with two-stage chain drive assembly, take-off (propeller) shaft is mounted on knuckle and speed changer inner support plate, two-stage chain drive assembly couples with driving wheel, rear drive sprocket level-one driven sprocket is coupled by input shaft with driving steering mechanism's assembly, and driving steering mechanism's assembly is coupled by take-off (propeller) shaft with two-stage chain drive assembly.The present invention can improve vehicle adaptation to the ground performance with four-wheel drive and steering.
Description
Technical field
The present invention relates to a kind of novel wheel-type vehicles can be made with multistage chain conveyer and steering mechanism more particularly to one kind it is wheeled
Vehicle realizes four-wheel drive and four-wheel steering, has " H " type multistage chain conveyer and the steering mechanism for being well adapted to ground.
Background technique
The present invention is in a kind of leg combined wheeled vehicle of the novel chain roller of studying automatically controlled shift according to being actually subjected to
It asks and proposes.This wheeled vehicle has balancing rocker arm suspension and the compound running gear of wheel leg, it has stronger complicated ring
Border posture ability of regulation and control and landform adaptability.The wheeled vehicle drives deflecting roller using balancing rocker arm chassis and four chain conveyers
The allocation plan of leg realizes the steering of wheeled vehicle by carrying out course changing control to four driving wheels respectively.
In order to realize that the turning function of the leg combined wheeled vehicle of novel chain roller of automatically controlled shift is fitted with ground is improved
Should be able to power, after study, exploring a kind of with four-wheel steering and can possess the multistage of high ground adaptability for the present inventor team
Linked transmission and steering mechanism.
Summary of the invention
1, the purpose of the present invention
The present invention to solve the above-mentioned problems and the deficiencies in the prior art, provide a kind of novel wheel-type vehicle Multi-stage transmission and
Ground adaptive can be improved in steering mechanism, and whole applicability is wide, improves the multistage chain conveyer and turning machine of transmission system service performance
Structure.
2, the technical solution adopted in the present invention
The invention proposes a kind of novel wheel-type vehicle multistage chain conveyer and steering mechanism, including speed changer, transfer gear,
Output axle shaft, driving wheel level-one drive sprocket, stretching wheel assembly, driving wheel, front driving wheel level-one driven sprocket, driving endless chain
Item, rear drive sprocket level-one driven sprocket, inner support plate, external support board, baffle, driving wheel steering mechanism assembly and second level chain conveyer
Assembly；Transfer gear both ends couple with speed changer, output axle shaft respectively, and driving wheel level-one drive sprocket is connected on output axle shaft,
Driving wheel level-one drive sprocket is joined by driving wheel chain and front driving wheel level-one driven sprocket, rear drive sprocket level-one driven sprocket
It connects；Stretching wheel assembly, which is fixed in inner support plate, to be mounted between primary transmission sprocket wheel, and front driving wheel level-one driven sprocket passes through
Input shaft couples with driving wheel steering mechanism assembly, and driving wheel steering mechanism assembly is passed by take-off (propeller) shaft and two-stage chain
Dynamic assembly connection, take-off (propeller) shaft are mounted on knuckle and speed changer inner support plate, and two-stage chain drive assembly and driving wheel join
It connects, rear drive sprocket level-one driven sprocket is coupled by input shaft with driving steering mechanism's assembly, and steering mechanism's assembly is driven
Coupled by take-off (propeller) shaft with two-stage chain drive assembly, two-stage chain drive assembly couples with driving wheel.
Further, driving wheel steering mechanism assembly includes input shaft, universal joint, take-off (propeller) shaft, steering
Section, knuckle arm, hydraulic cylinder, upper pin and lower bearing pin, the horizontal two sides of universal joint are driven with input shaft, output respectively
Axis connection, output rotation axis are supported on knuckle, and knuckle is supported on upper pin and lower bearing pin；Hydraulic cylinder passes through steering
Joint arm is fixed on knuckle, and one end couples with knuckle arm, and the other end of hydraulic cylinder is fixed on baffle, and baffle is fixed in
In support plate.
Further, the two-stage chain drive assembly includes second level drive sprocket, speed changer chain, second level driven sprocket,
Take turns side output shaft, speed changer inner support plate, speed changer external support board and transmission case；Second level drive sprocket and take-off (propeller) shaft join
Connect, second level drive sprocket couple with second level driven sprocket by speed changer chain, second level driven sprocket, by take turns side output shaft and
Driving wheel connection, wheel side output is pivotally supported in speed changer inner support plate and speed changer external support board, speed changer inner support plate with
Knuckle is fixedly connected；
Further, the stretching wheel assembly includes tensioning wheel, swing arm, pin shaft and connecting rod, and tensioning wheel passes through pin shaft and pendulum
Arm connection, swing arm couple with connecting rod, and connecting rod is fixedly connected in inner support plate.
Further, the output axle shaft is supported in inner support plate and external support board, and input shaft is supported on interior
In support plate and external support board.
3, beneficial effect of the present invention
(1) of the invention that steering system and transmission system are integrated, mechanical structure is simplified, mechanical make is improved
Use performance.
(2) present invention can be realized using the balancing rocker arm formula chassis vehicle or wheeled vehicle of this mechanism around its own center
Pivot stud.
(3) transmission mechanism of the invention can make balancing rocker arm formula chassis vehicle or endless-track vehicle flat with respect to normally travel
Equal travel speed is constant.
Detailed description of the invention
Fig. 1 is a kind of multistage chain conveyer of novel wheel-type vehicle of the present invention and steering mechanism's top view；
Fig. 2 is a kind of multistage chain conveyer of novel wheel-type vehicle of the present invention and steering mechanism's axonometric drawing；
Fig. 3 is driving wheel steering mechanism assembly (10) structure chart；
Fig. 4 is two-stage chain drive assembly (11) structure chart；
Fig. 5 is stretching wheel assembly (7) structure chart；
Symbol description is as follows in figure:
1- speed changer, 2- transfer gear, 3- output axle shaft, 4- rear drive sprocket level-one driven sprocket, 5- driving wheel level-one are actively
Sprocket wheel, 6- driving wheel chain, 7- stretching wheel assembly, 8- driving wheel, 9- front driving wheel level-one driven sprocket, 10- driving wheel turn to
Mechanism assembly, 11- two-stage chain drive assembly, 12- inner support plate, 13- baffle, 14- external support board, 15- take-off (propeller) shaft, 16-
Universal joint, 17- knuckle, 18- upper pin, 19- knuckle arm, 20- hydraulic cylinder, 21- input shaft, 22- lower bearing pin,
23- speed changer external support board, 24- second level drive sprocket, 25- speed changer inner support plate, 26- second level driven sprocket, 27- wheel side are defeated
Shaft, 28- speed changer chain, 29- transmission case, 30- tensioning wheel, 31 pin shafts, 32- swing arm, 33- connecting rod.
Specific embodiment
Below by drawings and examples, the present invention is further explained.In following elaborate, only pass through the side of explanation
Formula describes certain exemplary embodiments of the invention.
Embodiment 1
As shown in Figure 1, a kind of novel wheel-type vehicle proposed by the present invention multistage chain conveyer and steering mechanism, including speed change
Device 1, transfer gear 2, output axle shaft 3, driving wheel level-one drive sprocket 5, stretching wheel assembly 7, driving wheel 8, front driving wheel level-one from
Movable sprocket 9, driving wheel chain 6, rear drive sprocket level-one driven sprocket 4, inner support plate 12, external support board 14, baffle 13, driving wheel
Steering mechanism's assembly 10 and two-stage chain drive assembly 11；2 both ends of transfer gear couple with speed changer 1, output axle shaft 3 respectively, driving
Wheel level-one drive sprocket 5 is connected on output axle shaft 3, and driving wheel level-one drive sprocket 5 passes through driving wheel chain 6 and front driving wheel
Level-one driven sprocket 9, rear drive sprocket level-one driven sprocket 4 couple；Stretching wheel assembly 7 is fixed in inner support plate 12 and is mounted on one
Between grade drive sprocket, front driving wheel level-one driven sprocket 9 passes through input shaft 21 and driving wheel steering mechanism assembly 10
It connects, driving wheel steering mechanism assembly 10 is coupled by take-off (propeller) shaft 15 with two-stage chain drive assembly 11, and take-off (propeller) shaft 15 is pacified
On knuckle 17 and speed changer inner support plate 25, two-stage chain drive assembly 11 couples with driving wheel 8, rear drive sprocket level-one from
Movable sprocket 4 is coupled with driving steering mechanism's assembly 10 by input shaft 21, steering mechanism's assembly 10 is driven to pass by output
Moving axis 15 couples with two-stage chain drive assembly 11, and two-stage chain drive assembly 11 couples with driving wheel 8.
Embodiment 2
As shown in Figure 1, 2, a kind of novel wheel-type vehicle Multi-stage transmission and steering mechanism, including it is speed changer 1, transfer gear 2, defeated
Semiaxis 3, driving wheel level-one drive sprocket 5, stretching wheel assembly 7, driving wheel 8, front driving wheel level-one driven sprocket 9, driving wheel out
Chain 6, rear drive sprocket level-one driven sprocket 4, inner support plate 12, external support board 14, baffle 13, driving wheel steering mechanism assembly 10
It is formed with two-stage chain drive assembly 11；Their interrelationships are: speed changer 1 couples with transfer gear 2, transfer gear 2 with it is defeated
Semiaxis 3 couples out, and driving wheel level-one drive sprocket 5 is connected on output axle shaft 3, and driving wheel level-one drive sprocket 5 passes through driving
Wheel chain 6 couples with front driving wheel level-one driven sprocket 9, and driving wheel level-one drive sprocket 5 is connected on output axle shaft 3, driving
Wheel level-one drive sprocket 5 is coupled by driving wheel chain 6 with rear drive sprocket level-one driven sprocket 4, and output axle shaft 3 is supported on interior branch
On fagging 12 and external support board 14, stretching wheel assembly 7 is mounted between primary transmission sprocket wheel, is fixed in inner support plate 12,
Front driving wheel level-one driven sprocket 9 coupled by input shaft 21 with driving wheel steering mechanism assembly 10, input shaft 21
It is supported in inner support plate 12 and external support board 14, driving wheel steering mechanism assembly 10 is passed by take-off (propeller) shaft 15 and two-stage chain
Dynamic assembly 11 couples, and take-off (propeller) shaft 15 is supported on knuckle 17 and speed changer inner support plate 25, two-stage chain drive assembly 11
Couple with driving wheel 8, rear drive sprocket level-one driven sprocket 4 by input shaft 21 with drive steering mechanism's assembly 10 couple,
Driving steering mechanism's assembly 10 is coupled by take-off (propeller) shaft 15 with two-stage chain drive assembly 11, two-stage chain drive assembly 11 and drive
Driving wheel 8 couples.
It is illustrated in figure 3 driving wheel steering mechanism assembly 10, is passed including input shaft 21, universal joint 16, output
Moving axis 15, knuckle 17, knuckle arm 19, hydraulic cylinder 20, upper pin 18 and lower bearing pin 22, input shaft 21 and universal joint
16 connections, universal joint 16 couple with take-off (propeller) shaft 15, and output rotation axis is supported on knuckle 17, and knuckle 17 is supported on
On pin shaft 18 and lower bearing pin 22；Knuckle arm 19 is fixed on knuckle 17, and 20 one end of hydraulic cylinder couples with knuckle arm 19,
The other end of hydraulic cylinder 20 is fixed on baffle 13, and baffle 13 is fixed in inner support plate 12；
Being illustrated in figure 4 two-stage chain drive assembly 11 includes second level drive sprocket 24, speed changer chain 28, second level driven chain
Wheel 26, wheel side output shaft 27, speed changer inner support plate 25, speed changer external support board 23 and transmission case 29, second level drive sprocket
24 couple with take-off (propeller) shaft 15, and second level drive sprocket 24 is coupled by speed changer chain 28 with second level driven sprocket 26, second level
Driven sprocket 26 couples with wheel side output shaft 27, and wheel side output shaft 27 couples with driving wheel 8, and wheel side output shaft 27 is supported on speed change
In device inner support plate 25 and speed changer external support board 23, speed changer inner support plate 25 is fixedly connected with knuckle 17；
It is illustrated in figure 5 stretching wheel assembly 7 to be mainly made of tensioning wheel 30, swing arm 32, pin shaft 31 and connecting rod 33, tensioning wheel
30 are coupled by pin shaft 31 with swing arm 32, and swing arm 32 couples with connecting rod 33, and connecting rod 33 is fixedly connected in inner support plate 12.
Claims (5)
1. a kind of novel wheel-type vehicle multistage chain conveyer and steering mechanism, it is characterised in that: including speed changer (1), transfer gear
(2), output axle shaft (3), driving wheel level-one drive sprocket (5), stretching wheel assembly (7), driving wheel (8), front driving wheel level-one from
Movable sprocket (9), driving wheel chain (6), rear drive sprocket level-one driven sprocket (4), inner support plate (12), external support board (14), gear
Plate (13), driving wheel steering mechanism assembly (10) and two-stage chain drive assembly (11)；Transfer gear (2) both ends respectively with speed changer
(1), output axle shaft (3) couples, and driving wheel level-one drive sprocket (5) is connected on output axle shaft (3), driving wheel level-one drive chain
Wheel (5) is coupled by driving wheel chain (6) with front driving wheel level-one driven sprocket (9), rear drive sprocket level-one driven sprocket (4)；
Stretching wheel assembly (7) is fixed on inner support plate (12) and is mounted between primary transmission sprocket wheel, front driving wheel level-one driven sprocket
(9) coupled by input shaft (21) with driving wheel steering mechanism assembly (10), driving wheel steering mechanism assembly (10) passes through
Take-off (propeller) shaft (15) couples with two-stage chain drive assembly (11), and take-off (propeller) shaft (15) is mounted on knuckle (17) and speed changer
In inner support plate (25), two-stage chain drive assembly (11) couples with driving wheel (8), and rear drive sprocket level-one driven sprocket (4) passes through
Input shaft (21) couples with driving steering mechanism's assembly (10), and driving steering mechanism's assembly (10) passes through take-off (propeller) shaft
(15) couple with two-stage chain drive assembly (11), two-stage chain drive assembly (11) couples with driving wheel (8).
2. novel wheel-type vehicle according to claim 1 multistage chain conveyer and steering mechanism, it is characterised in that: the drive
Driving wheel steering mechanism assembly (10) include input shaft (21), universal joint (16), take-off (propeller) shaft (15), knuckle (17),
Knuckle arm (19), hydraulic cylinder (20), upper pin (18) and lower bearing pin (22), the horizontal two sides of universal joint (16) respectively with it is defeated
Enter transmission shaft (21), take-off (propeller) shaft (15) connection, output rotation axis (15) is supported on knuckle (17), knuckle (17) branch
It holds on upper pin (18) and lower bearing pin (22)；Hydraulic cylinder (20) is fixed in one on knuckle (17) by knuckle arm (19)
End couples with knuckle arm (19), and the other end of hydraulic cylinder (20) is fixed on baffle (13), and baffle (13) is fixed in support
On plate.
3. novel wheel-type vehicle according to claim 1 multistage chain conveyer and steering mechanism, it is characterised in that: described two
Grade chain conveyer assembly (11) includes second level drive sprocket (24), speed changer chain (28), second level driven sprocket (26), the output of wheel side
Axis (27), speed changer inner support plate (25), speed changer external support board (23) and transmission case (29)；Second level drive sprocket (24) with
Take-off (propeller) shaft (15) connection, second level drive sprocket (24) are coupled by speed changer chain (28) with second level driven sprocket (26),
Second level driven sprocket (26) is coupled by taking turns side output shaft (27) with driving wheel (8), and wheel side output shaft (27) is supported on speed changer
In inner support plate (25) and speed changer external support board (23), speed changer inner support plate (25) is fixedly connected with knuckle (17)；
4. novel wheel-type vehicle according to claim 1 multistage chain conveyer and steering mechanism, it is characterised in that: described
Bearing up pulley assembly (7) includes tensioning wheel (30), swing arm (32), pin shaft (31) and connecting rod (33), and tensioning wheel (30) passes through pin shaft (31)
Couple with swing arm (32), swing arm (32) couples with connecting rod (33), and connecting rod (33) is fixedly connected on inner support plate (12).
5. novel wheel-type vehicle according to claim 1 multistage chain conveyer and steering mechanism, it is characterised in that: described
Output axle shaft (3) is supported in inner support plate (12) and external support board (14), and input shaft (21) is supported on inner support plate
(12) and on external support board (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811267507.8A CN109435687B (en) | 2018-10-29 | 2018-10-29 | Novel multistage chain transmission and steering mechanism for wheeled vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811267507.8A CN109435687B (en) | 2018-10-29 | 2018-10-29 | Novel multistage chain transmission and steering mechanism for wheeled vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109435687A true CN109435687A (en) | 2019-03-08 |
| CN109435687B CN109435687B (en) | 2021-10-15 |
Family
ID=65548903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811267507.8A Active CN109435687B (en) | 2018-10-29 | 2018-10-29 | Novel multistage chain transmission and steering mechanism for wheeled vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109435687B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001509225A (en) * | 1997-08-23 | 2001-07-10 | バムフォール，ジョセフ・シリル | Side-slip steering loading vehicle |
| CN101032923A (en) * | 2007-04-19 | 2007-09-12 | 中国嘉陵工业股份有限公司（集团） | 8x8 light type gearing mechanism of whole clime car |
| CN101032922A (en) * | 2007-04-03 | 2007-09-12 | 中国嘉陵工业股份有限公司（集团） | 8x8 light type gearing of whole clime car |
| CN202641256U (en) * | 2012-05-08 | 2013-01-02 | 泰安金城重工科技有限公司 | Steering drive axle used for wheel excavator |
| US20130306385A1 (en) * | 2010-04-06 | 2013-11-21 | Robotex Inc. | Robotic system and methods of use |
| CN106458276A (en) * | 2014-04-28 | 2017-02-22 | 洋马株式会社 | Travelling vehicle |
| CN206475746U (en) * | 2016-12-30 | 2017-09-08 | 云南昆船智能装备有限公司 | It is a kind of to be used for the differential drive device of industrial traveling vehicle |
| CN108407610A (en) * | 2017-08-14 | 2018-08-17 | 四川阿泰因机器人智能装备有限公司 | A kind of four-wheel drive robot chassis of chain drive |
| CN207773299U (en) * | 2018-01-18 | 2018-08-28 | 中山市百佳大谷电子科技有限公司 | Safety protection robot four-wheel drive structure |
-
2018
- 2018-10-29 CN CN201811267507.8A patent/CN109435687B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001509225A (en) * | 1997-08-23 | 2001-07-10 | バムフォール，ジョセフ・シリル | Side-slip steering loading vehicle |
| CN101032922A (en) * | 2007-04-03 | 2007-09-12 | 中国嘉陵工业股份有限公司（集团） | 8x8 light type gearing of whole clime car |
| CN101032923A (en) * | 2007-04-19 | 2007-09-12 | 中国嘉陵工业股份有限公司（集团） | 8x8 light type gearing mechanism of whole clime car |
| US20130306385A1 (en) * | 2010-04-06 | 2013-11-21 | Robotex Inc. | Robotic system and methods of use |
| CN202641256U (en) * | 2012-05-08 | 2013-01-02 | 泰安金城重工科技有限公司 | Steering drive axle used for wheel excavator |
| CN106458276A (en) * | 2014-04-28 | 2017-02-22 | 洋马株式会社 | Travelling vehicle |
| CN206475746U (en) * | 2016-12-30 | 2017-09-08 | 云南昆船智能装备有限公司 | It is a kind of to be used for the differential drive device of industrial traveling vehicle |
| CN108407610A (en) * | 2017-08-14 | 2018-08-17 | 四川阿泰因机器人智能装备有限公司 | A kind of four-wheel drive robot chassis of chain drive |
| CN207773299U (en) * | 2018-01-18 | 2018-08-28 | 中山市百佳大谷电子科技有限公司 | Safety protection robot four-wheel drive structure |
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| Publication number | Publication date |
|---|---|
| CN109435687B (en) | 2021-10-15 |
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Effective date of registration: 20231102 Address after: A007, 4th Floor, Building A, Zhizhen Building, No. 7 Zhichun Road, Haidian District, Beijing, 100089 Patentee after: BEIJING LYUTAN TECHNOLOGY CO.,LTD. Address before: 215513 Science Park No. 11 Sihai Road, Changshu Economic and Technological Development Zone, Suzhou City, Jiangsu Province Patentee before: SUZHOU LYUTAN INTELLIGENT TECHNOLOGY Co.,Ltd. |