CN106004311A - Liftable suspension applicable to special vehicles - Google Patents
Liftable suspension applicable to special vehicles Download PDFInfo
- Publication number
- CN106004311A CN106004311A CN201610463145.4A CN201610463145A CN106004311A CN 106004311 A CN106004311 A CN 106004311A CN 201610463145 A CN201610463145 A CN 201610463145A CN 106004311 A CN106004311 A CN 106004311A
- Authority
- CN
- China
- Prior art keywords
- lifting
- applicable
- lifting drive
- flexible member
- connector
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/02—Spring characteristics, e.g. mechanical springs and mechanical adjusting means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G15/00—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type
- B60G15/02—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring
- B60G15/06—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
- B60G2202/20—Type of damper
- B60G2202/24—Fluid damper
- B60G2202/242—Pneumatic damper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
- B60G2202/40—Type of actuator
- B60G2202/43—Mechanical actuator
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2300/00—Indexing codes relating to the type of vehicle
- B60G2300/07—Off-road vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2800/00—Indexing codes relating to the type of movement or to the condition of the vehicle and to the end result to be achieved by the control action
- B60G2800/90—System Controller type
- B60G2800/91—Suspension Control
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The invention relates to a liftable suspension applicable to special vehicles. The liftable suspension comprises sliding devices and a lifting driving device which are lifted and dropped synchronously and further comprises at least one connecting piece for connecting the sliding devices and the lifting driving device, sliding pieces on the sliding devices and a lifting pushing piece on the lifting driving device are connected with a wheel mounting device, a top cover is arranged at the top ends of the sliding devices, and the lifting driving device is in perpendicular gliding connection with the top cover. The liftable suspension applicable to the special vehicles has a lifting and dropping damping function and a vibration reducing function.
Description
Technical field
The present invention relates to the suspension of special movement machinery, be specifically related to be applicable to the spy such as offroad vehicle, agri-vehicle
The lifting type suspension of different vehicle.
Background technology
Suspension is that all power transmissions between the vehicle frame (or monocoque body) of vehicle and vehicle bridge (or wheel) connect
The general name of connection device, its effect be transmission act between wheel and vehicle frame power and torque, and buffer by
The impulsive force of vehicle frame or vehicle body is passed in outside, and reduces the vibration thus caused, to ensure that vehicle can be smoothly
Travel.
Typical suspension frame structure is made up of flexible member, guider and vibroshock etc., and discrete structure is then also
There are buffer stopper, QS etc..Flexible member has again steel plate flexible member, aeroelastic element, spiral
The forms such as flexible member and torsion bar flexible member, and Modern Car suspension many employings spiral elastic element and torsion
Bar flexible member, indivedual sedan limousines then use aeroelastic element, but this suspension frame structure is complicated, and
And weight is big, not being suitable for off-road vehicle or farm equipment etc. needs the mobile device of little weight.
The special car such as offroad vehicle, agri-vehicle should have the several functions that non-rice habitats travels, agri-vehicle
Outfitting tool up to more than 20 plant, can be engaged in nearly 40 farmland operations, such as rotary tillage, loosen the soil, apply fertilizer,
Weeding, ditch, earth up, spray medicine, harvesting etc., it is therefore desirable to garden supervisor weight is light, but existing
Garden supervisor does not have elevating function vibration damping and is not suitable with the needs of intertillage and obstacle detouring.
Summary of the invention
It is an object of the invention to provide a kind of lifting type suspension being applicable to special car, there is elevating function
Vibration damping and the lifting type suspension being applicable to special car of vibration-damping function.
It is an object of the invention to be achieved through the following technical solutions:
A kind of lifting type suspension being applicable to special car, carriage and lifting including synchronization lifting drive
Dynamic device, also includes that at least one connects described carriage and the connector of lifting drive, described cunning
Sliding part on dynamic device is all connected with wheel mounting means with the lifting impeller on lifting drive, described
The top of carriage is provided with top cover, and described lifting drive is perpendicular to described top cover and is slidably connected, and passes through
Carriage and the synchronization lifting of lifting drive, can realize the elevating function of suspension.
In preferred embodiments, described carriage is symmetricly set on the both sides of described lifting drive,
Owing to lifting drive is lifting drive source, and carriage is used for supporting whole suspension, lifting is driven
Device is arranged on centre position, can the rotation stress of balance lifting driving means both sides, make lowering or hoisting gear from
Torque, limits its horizontal degree of freedom, makes lowering or hoisting gear only by upper and lower power, can protect in lowering or hoisting gear
Lifting impeller, prevents it excessive and cause bending by cross force.
In preferred embodiments, it is slidably connected between described lifting drive and connector, described cunning
Dynamic fixing between device with connector is connected, and on described lifting drive, set is equiped with flexible member, described
One end of flexible member props up described connector, and the other end of described flexible member is provided with and is fixed on described lifting
Catch in driving means, is provided with flexible member pre-tightening apparatus between described lifting drive and top cover.By
In the fixing lifting drive that connects of catch, therefore catch and lifting drive synchronizing moving, when wheel row
Walking on rough road, wheel can be along with road surface up-down vibration, and the stress of up-down vibration is led to by wheel
Crossing wheel mounting means and pass to lifting drive, lifting drive can rise along with wheel up-down vibration
Fall driving means drives catch synchronous vibration, catch and connector to extrude flexible member, and flexible member balance should
The stress of vibration, after balance, flexible member restores to the original state, and lifting drive drives wheel mounting means to recover
Original state, thus play cushioning effect, it is particularly suited for the special car such as offroad vehicle, mountain bike.
In preferred embodiments, described flexible member pre-tightening apparatus includes locating part and along described locating part
The lifters moved reciprocatingly, described locating part is located on top cover, and described locating part slides with described top cover and joins
Closing, described top cover limits locating part and moves downward, and the described lifting of fixing connection of the bottom of described lifters drives
Device, lifters provides downward stress for locating part, makes locating part and top cover clamping, when there is vibration
Locating part can top cover upward sliding relatively, it is achieved the pooling feature of suspension；Meanwhile, flexible member pre-tightening apparatus
Be additionally operable to regulate between lifting drive and carriage up and down relative to position, make on lifting drive
Lower movement, can be used for the regulation of flexible member pretightning force, and described locating part, can be with when needs locking suspension
Top cover fixes locking, thus suspension is locked, it is achieved close buffer shock-absorbing function.
In preferred embodiments, described flexible member pre-tightening apparatus is feed screw apparatus, air cylinder device, liquid
Any one in pressure cylinder apparatus, electric pushrod device.
In preferred embodiments, described lifting drive is cylinder, hydraulic cylinder or electric pushrod, liquid
Hydraulic energy is changed into mechanical energy, does the hydraulic pressure execution of straight reciprocating motion (or oscillating motion) by cylinder pressure
Element, its simple in construction, reliable operation, when realizing moving back and forth with it, deceleration device can be removed from, and
And there is no drive gap, stable movement, and therefore it is used widely in the hydraulic system of various machineries, liquid
The pressure reduction on cylinder pressure power output and piston effective area and both sides thereof is directly proportional；Hydraulic cylinder is substantially driven by lifting
Device and cylinder cap, piston and piston rod, sealing device, buffer unit form with exhaust apparatus, buffer unit
With exhaust apparatus depending on concrete application scenario, other devices are the most essential.
Electric pushrod has another name called linear actuator, it is believed that be the electric rotating machine a kind of extension in configuration aspects.
A kind of novel linear that electric pushrod is mainly made up of devices such as motor push rod and control devices performs device.By
In surging, execution device is required for certain hydraulic pressure, whole power-equipment body in whole control running
Long-pending relatively large, and weight is big, and use electric pushrod to perform device, when changing control aperture, only
Needing power supply, just can no longer power when reaching required aperture, therefore from energy-conservation, electric pushrod performs dress
Put and have obvious power saving advantages than the execution device that surges, and the power source of electric pushrod can use portable power source,
Structure is little, lightweight.
In preferred embodiments, described connector is articulated and connected installing rack, described installing rack and car body admittedly
Fixed connection, makes installing rack rotatable connection upper connector and lower connector, and the suspension assembly making the present invention can
Rotate, for Vehicular turn.
In preferred embodiments, described wheel mounting means includes wheel mount, and described wheel is installed
Frame is fixing connects described lifting impeller and sliding part, and described wheel mount is provided with axletree, described car
Wheel shaft runs through wheel and brake disc, and described wheel is provided with the brake coordinating described brake disc.
In preferred embodiments, described carriage is provided with the damping unit connecting its inner chamber body, should
Damping unit may be provided at the top of carriage, or is arranged on top cover the inner chamber body of corresponding carriage
Position, make sliding part air in sliding process play damping effect by damping unit, increase effectiveness in vibration suppression.
The invention have the benefit that
1, the upper end of lifting drive of the present invention is provided with flexible member pre-tightening apparatus, under lifting drive
End is connected with wheel assembly, by controlling the lifting of lifting drive, to realize the elevating function of suspension,
Carriage is set in the both sides of lifting drive simultaneously, serves the guiding flexible to suspension assembly and hold
Acted on by moment of flexure.
2, the present invention is by being provided with flexible member, rough between lifting drive and connector
Occurring the situation of unsteadiness of wheels on road surface, the catch on lifting drive extrudes flexible member with connector,
Realize the buffer shock-absorbing function of suspension.
3, the present invention is provided with flexible member pre-tightening apparatus between lifting drive and top cover, can realize bullet
Property element pretightning force regulation or flexible member locked, it is achieved the buffer shock-absorbing function of suspension can be closed, and i.e. adjusts
Joint buffering effect, is applicable not only to the vibration damping demand of off-road vehicle, could be applicable to the multiplex of farm machinery and ploughs
Plant function.
Accompanying drawing explanation
Below according to accompanying drawing, the present invention is described in further detail.
Fig. 1 is the overall structure of the lifting type suspension being applicable to special car described in the embodiment of the present invention
Figure；
Fig. 2 is the internal structure of the lifting type suspension being applicable to special car described in the embodiment of the present invention
Figure.
In figure:
1, carriage；2, sliding part；, 3 damping units；
4, lifting drive；5, lifting impeller；6, connector；
7, flexible member；8, catch；9, top cover；10, locating part；11, lifters；
12, wheel mount；13, wheel；14, brake disc；15, brake；16, installing rack.
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, below in conjunction with the present invention
Accompanying drawing in embodiment, is clearly and completely described the technical scheme in the embodiment of the present invention, it is clear that
Described embodiment is a part of embodiment of the present invention rather than whole embodiments.Generally the most attached
Described in figure, the assembly with the embodiment of the present invention illustrated can be arranged with various different configurations and design.
Therefore, detailed description to the embodiments of the invention provided in the accompanying drawings is not intended to limit requirement and protects below
The scope of the present invention protected, but it is merely representative of the selected embodiment of the present invention.Based on the enforcement in the present invention
Example, the every other enforcement that those of ordinary skill in the art are obtained under not making creative work premise
Example, broadly falls into the scope of protection of the invention.
Embodiments of the invention are described below in detail, and the example of embodiment is shown in the drawings, the most extremely
Same or similar label represents same or similar element or has the element of same or like function eventually.Under
Face is exemplary by the embodiment being described with reference to the drawings, it is intended to is used for explaining the present invention, and is not understood that
For limitation of the present invention.
The present invention is further illustrated with specific embodiment below with reference to accompanying drawings.
As shown in Figure 1, 2, a kind of lifting type suspension being applicable to special car of the embodiment of the present invention, bag
Including carriage 1 and the lifting drive 4 of synchronization lifting, carriage 1 is symmetricly set on lifting and drives
The both sides of device 4, for can the rotation stress of balance lifting driving means 4 both sides, make lowering or hoisting gear from
Torque, limits its horizontal degree of freedom, makes lowering or hoisting gear only by upper and lower power, can protect in lowering or hoisting gear
Lifting impeller 5, prevents it excessive and cause bending by cross force.
Lifting drive 4 drives lifting impeller 5 to move along a straight line, and the bottom of lifting impeller 5 is fixed
Connecting wheel mounting means, lifting drive 4 is any one in cylinder, hydraulic cylinder or electric pushrod.
Carriage 1 and lifting drive 4 sequentially pass through connector 6 the most from top to bottom, along with lifting is driven
Dynamic device 4 and the increase of the length of carriage 1, can increase the quantity of connector 6, or increase connection
The thickness of part 6, is preferable over the former, and the former with the latter is in the case of fixed effect is identical, it is possible to decrease overall
Gross weight.
It is slidably connected between lifting drive 4 and connector 6, i.e. lifting drive 4 and connector 6
Between can relatively slide, such as: gap connects, or passes for lifting drive 4 on connector 6
The aperture in hole is far wider than the barrel dliameter of lifting drive 4, and wherein optimum technical scheme is lifting drive
Between 4 with connector 6, gap is connected, and makes connector 6 all farthest to enter lifting drive 4
Row is fixing, limits the laterally free degree of lifting drive 4, prevents lifting drive 4 from bending occur, inclining
Oblique situation.
Fix between carriage 1 with connector 6 and be connected, make carriage 1 formation fixing with connector 6
Suspension support body, can be connected by interference between carriage 1 with connector 6, be welded to connect, securing member,
The fixed forms such as metal-to-metal adhesive stickup are connected, and are provided with the sliding part 2 slided along its inner chamber in carriage 1,
The bottom of sliding part 2 is fixing connects wheel mounting means.
On lifting drive 4 set be equiped with flexible member 7, flexible member 7 can be spring, elastic force post,
Elastic sleeve etc., one end of flexible member 7 props up connector 6, and the other end of flexible member 7 is provided with catch 8,
Catch 8 is fixed on lifting drive 4, and vibration is passed to lifting by wheel mounting means by wheel 13
Driving means 4, lifting drive 4 is fixing with catch 8 to be connected, and lifting drive 4 is at connector 6
Between slide, make catch 8 and connector 6 clamp flexible member 7, flexible member 7 balances this thrust,
Realize the buffer shock-absorbing function to wheel mounting means.
The top of lifting drive 4 is provided with horizontally disposed top cover 9, and the both sides of top cover 9 fixing connection is slided
Dynamic device 1, is provided with flexible member pre-tightening apparatus between lifting drive 4 and top cover 9, flexible member is pre-
Tight device includes locating part 10 and the lifters 11 moved reciprocatingly along locating part 10 inner chamber, described locating part
10 are slidably matched with top cover 9, and described top cover 9 limits locating part 10 and moves downward, described lifters 11
Bottom is fixing connects described lifting drive 4, and lifters 11 provides downward stress for locating part 10, makes
Locating part 10 and top cover 9 clamping, when there is vibration, locating part 10 can slide up and down in top cover 9, real
The buffer shock-absorbing function of existing suspension, flexible member pre-tightening apparatus is feed screw apparatus, cylinder, hydraulic cylinder, electronic
Any one in push rod.
Described wheel mounting means includes wheel mount 12, and the described fixing connection of wheel mount 12 is described
Lifting impeller 5 and sliding part 2, described wheel mount 12 is provided with wheel 13 axle, described wheel 13
Axle runs through wheel 13 and brake disc 14, and described wheel 13 is provided with the brake coordinating described brake disc 14
15。
Connector 6 is articulated and connected installing rack 16, and installing rack 16 may be installed on car body, it is achieved upper connector 6,
Lower connector 6 is all and rotatable between installing rack 16, it is achieved the rotation of suspension, turning to for vehicle.
Specifically used principle:
When the suspension of the present invention is used on vehicle, the impulsive force on road surface through wheel 13 pass to lowering or hoisting gear with
Sliding part 2, lowering or hoisting gear drives catch 8 thereon to move up, catch 8 upwardly flexible member 7,
Installing rack 16 is fixedly connected with the vehicle body simultaneously, nothing between installing rack 16 and upper connector 6 and lower connector 6
Relative movement, therefore, the weight of whole car body passes to upper connector 6 and lower connector by installing rack 16
6, therefore, upper connector 6 and lower connector 6 are pressed down against flexible member 7, to alleviate impulsive force, simultaneously
The slide mechanism of both sides also moves down, and makes sliding part 2 along slide mechanism upward sliding, the top of slide mechanism
Portion is provided with damping unit 3, and this damping unit can be damping hole, makes sliding part 2 pass through in sliding process
Damping unit 3 realizes vibration damping, increases buffer shock-absorbing effect, coordinates master between slide mechanism with sliding part 2
Guiding that suspension assembly to be served is flexible and bear the effect of moment of flexure.
When the suspension of the present invention carries out farm work for agricultural machinery, need to regulate suspension rate or locked
Suspension, it is ensured that the normal operation of agricultural machinery and implement.By regulation locating part 10, make lifters 11 relative to locating part
10 move up, and lifters 11 drives lowering or hoisting gear to move up with lower connector 6 relative to upper connector 6,
Make catch 8 extrude flexible member 7, so can regulate the pretightning force of flexible member 7, when by locating part 10
After top cover 9 locking, suspension is locked.
Last it is noted that above each embodiment is merely to illustrate technical scheme, rather than right
It limits；Although the present invention being described in detail with reference to previous embodiment, the ordinary skill of this area
Personnel are it is understood that the technical scheme described in previous embodiment still can be modified by it or right
Wherein partly or entirely technical characteristic carries out equivalent；And these amendments or replacement, do not make relevant art
The essence of scheme departs from the scope of various embodiments of the present invention technical scheme.
Claims (9)
1. the lifting type suspension being applicable to special car, it is characterised in that: include the cunning of synchronization lifting
Dynamic device and lifting drive, also include that at least one connects described carriage and lifting drive
Connector, the sliding part on described carriage is all connected with wheel with the lifting impeller on lifting drive
Erecting device, the top of described lifting drive is provided with top cover, fixing between described top cover and carriage
Connect.
The lifting type suspension being applicable to special car the most according to claim 1, it is characterised in that:
Described carriage is symmetricly set on the both sides of described lifting drive.
The lifting type suspension being applicable to special car the most according to claim 1, it is characterised in that:
It is slidably connected between described lifting drive and connector, the company of fixing between described carriage and connector
Connecing, described lifting drive is provided with flexible member, and one end of described flexible member props up described connector,
The other end of described flexible member props up the catch being fixed on described lifting drive, and described lifting drives
Flexible member pre-tightening apparatus it is provided with between device and top cover.
The lifting type suspension being applicable to special car the most according to claim 3, it is characterised in that:
Described flexible member pre-tightening apparatus includes locating part and the lifters moved reciprocatingly along described locating part.
The lifting type suspension being applicable to special car the most according to claim 4, it is characterised in that:
Described flexible member pre-tightening apparatus is in feed screw apparatus, air cylinder device, hydraulic cylinder device, electric pushrod device
Any one.
The lifting type suspension being applicable to special car the most according to claim 1, it is characterised in that:
Described lifting drive is any one in air cylinder device, hydraulic cylinder device or electric pushrod device.
The lifting type suspension being applicable to special car the most according to claim 1, it is characterised in that:
Described connector is articulated and connected installing rack, and described installing rack is fixedly connected with the vehicle body.
The lifting type suspension being applicable to special car the most according to claim 1, it is characterised in that:
Described wheel mounting means includes wheel mount, and described wheel mount is fixing connects described lifting impeller
And sliding part, described wheel mount is provided with axletree, and described axletree runs through wheel and brake disc, institute
State wheel and be provided with the brake coordinating described brake disc.
The lifting type suspension being applicable to special car the most according to claim 1, it is characterised in that:
Described carriage is provided with damping unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610463145.4A CN106004311B (en) | 2016-06-23 | 2016-06-23 | Liftable type suspension suitable for special car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610463145.4A CN106004311B (en) | 2016-06-23 | 2016-06-23 | Liftable type suspension suitable for special car |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106004311A true CN106004311A (en) | 2016-10-12 |
| CN106004311B CN106004311B (en) | 2019-09-13 |
Family
ID=57087260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610463145.4A Active CN106004311B (en) | 2016-06-23 | 2016-06-23 | Liftable type suspension suitable for special car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106004311B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704469A (en) * | 2017-02-09 | 2017-05-24 | 泉州齐美电子科技有限公司 | Impact-resistant automobile damping mechanism |
| CN112576680A (en) * | 2019-09-30 | 2021-03-30 | 比亚迪股份有限公司 | Shock absorber and vehicle |
| CN113635724A (en) * | 2021-08-26 | 2021-11-12 | 北京航天发射技术研究所 | Vehicle suspension |
-
2016
- 2016-06-23 CN CN201610463145.4A patent/CN106004311B/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704469A (en) * | 2017-02-09 | 2017-05-24 | 泉州齐美电子科技有限公司 | Impact-resistant automobile damping mechanism |
| CN112576680A (en) * | 2019-09-30 | 2021-03-30 | 比亚迪股份有限公司 | Shock absorber and vehicle |
| CN112576680B (en) * | 2019-09-30 | 2022-03-15 | 比亚迪股份有限公司 | Shock absorber and vehicle |
| CN113635724A (en) * | 2021-08-26 | 2021-11-12 | 北京航天发射技术研究所 | Vehicle suspension |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106004311B (en) | 2019-09-13 |
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Effective date of registration: 20210224 Address after: 230000 industrial cluster, Huagang Town, Feixi County, Hefei City, Anhui Province Patentee after: HEFEI BAIHENG EQUIPMENT DIE Co.,Ltd. Address before: 100097 room 6729, 6th floor, Jinya garden, YunhuiLi, Haidian District, Beijing Patentee before: ZHONGGUAN CHUANGXIN (BEIJING) TECHNOLOGY DEVELOPMENT Co.,Ltd. |
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