CN108909379A - A kind of Trailer equipment with bidirectional buffering function - Google Patents
A kind of Trailer equipment with bidirectional buffering function Download PDFInfo
- Publication number
- CN108909379A CN108909379A CN201810790233.4A CN201810790233A CN108909379A CN 108909379 A CN108909379 A CN 108909379A CN 201810790233 A CN201810790233 A CN 201810790233A CN 108909379 A CN108909379 A CN 108909379A
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- China
- Prior art keywords
- cabinet
- piston cylinder
- piston
- round tube
- rope
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60D—VEHICLE CONNECTIONS
- B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
- B60D1/24—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions
- B60D1/243—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions for protection in case of crash, collision, impact, or the like
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The present invention relates to a kind of Trailer equipment with bidirectional buffering function, the existing Trailer equipment of effective solution does not have the problem of pooling feature；Its technical solution solved includes cabinet, a reducible reel is equipped in cabinet, there is a piston cylinder in the left and right sides of cabinet respectively, first round tube is equipped in each piston cylinder, the part that first round tube is placed in piston cylinder is cased with the piston that can be moved left and right, piston cylinder outer end is equipped with the first check valve of only outlet, inner end is equipped with the second one-way valve of only air inlet, piston has the second round tube far from one end of cabinet, the other end of second round tube is fixed with a magnetic spheres, the outside of each magnetic spheres is equipped with a magnetic sheath, a rope is fixed in magnetic sheath, the other end of rope is connected with reel, the part that rope is placed in the second round tube is equipped with the first pressure spring that rope can be made to reset to reel direction, present inventive concept is novel, clever structure, it is practical.
Description
Technical field
The present invention relates to trailer instrument field, especially a kind of Trailer equipment with bidirectional buffering function.
Background technique
Automobile has become the vehicles indispensable in modern life, but inevitably will appear automobile in life
The mode of trailer is usually used when facing this emergency case in the case where not having oil, or breaking down and cast anchor
Emergency relief is carried out, also point many types have professional trailer to trailer, it is transported by integrally lifting car, and this trailer
Mode needs the towing equipment and trailer of professional trailer personnel and profession at high cost, casts anchor in face of general glitch
The case where still also carry out trailer with trailer rope or draw-bar.
Trailer rope has light, cheap, trailer distance, facilitates the problem of carrying and installation, but trailer rope is due to being
Vehicle flexible contact, it is easy to car rear-end front truck during trailer, and traffic method clearly stipulate that city trailer either after
Vehicle brake failure cannot use trailer rope trailer, and draw-bar is filled using the trailer that three sections of steel pipes or solid metal connect into
The rigid connection that can effectively realize between a vehicle is set, so that trailer is safer, but can be made using rigidly connected mode
It is not easy to operate during traction at front truck, especially during the turn, such as encounter rear car direction conversion it is asynchronous, easily make
It is not complete rigidity at the damage of the bumper and trailer ring of vehicle, and during the rigid connection of draw-bar yet
Connection, anti-tripping and trailer ring connection can have gap and will also result in concussion during trailer.
The problem of both the above Trailer equipment can not only face its own during trailer, at the same it is slow there are also not having
Punching is so that in the discomfort for accelerating with causing rear car driver in moderating process.
So the present invention provides a kind of Trailer equipment with bidirectional buffering function to solve problem above.
Summary of the invention
For above situation, for the defect for overcoming the prior art, the present invention provides a kind of dragging with bidirectional buffering function
Vehicle device, the existing Trailer equipment of effective solution do not have the problem of pooling feature.
Its technical solution solved the problems, such as includes the cabinet of a sealing, is equipped with a reel in cabinet, reel
Respectively there are the clockwork spring that it can be made to reset, the piston that the left and right sides of cabinet has a horizontal cross to place respectively in two sides
Cylinder, it is closed that one end of piston cylinder, which is fixed on cabinet the other end, be equipped in each piston cylinder one coaxially installation and
The other end of the first round tube that one end is fixed on cabinet and is connected to cabinet, the first round tube stretches out piston cylinder, and the first round tube is set
The piston that can be moved left and right is cased in the part in piston cylinder, the inner headed face of piston fits with the first round tube, periphery and work
Plug cylinder fits, piston cylinder far from the end face of cabinet be equipped with can the first check valve for being flowed out out of piston cylinder of supplied gas, piston
Periphery of the cylinder close to cabinet one end be equipped with can the second one-way valve that is flowed into piston cylinder of supplied gas, piston is to far from cabinet
One end is mobile but the air of the one end of piston far from cabinet flow out through the first check valve, and the air of one end of close cabinet is through the
Two check valves flow into, and piston reverses direction is mobile, and the gas in piston cylinder is not in communication with the outside；
The piston far from be fixed on the end face of cabinet diameter be greater than the first round tube the second round tube, the other end of the second round tube
One end through piston cylinder far from cabinet is simultaneously fixed with a magnetic spheres, and the outside of each magnetic spheres is equipped with a hemispherical
Magnetic sheath, the spherical outside surface of each magnetic sheath are fixed with a buckle, and Internal Spherical Surface is fixed with a rope, and the other end of rope is successively
It is connected across magnetic spheres, the first round tube, the second round tube, cabinet and with reel, two sides rope can be achieved in the rotation of reel
Tightening with loosen, the part that rope is placed in the second round tube be equipped with rope can be made to reset to reel direction the first pressure spring.
Present inventive concept is novel, and clever structure is practical, is realized by the cooperation of two groups of buffer units in trailer mistake
The bidirectional buffering of journey, so that efficient in trailer process more reasonable benefit/risk.
Detailed description of the invention
Fig. 1 is top view of the present invention.
Fig. 2 is the left half side top view cross section of present invention figure.
Fig. 3 is a-quadrant partial enlarged view in Fig. 2 of the present invention.
Specific embodiment
Below in conjunction with attached drawing, specific embodiments of the present invention will be described in further detail.
By Fig. 1 to Fig. 3 it is found that the present invention includes the cabinet 1 of a sealing, a reel 2, spiral are equipped in cabinet 1
Respectively there are the clockwork spring 3 that it can be made to reset in the two sides of wheel 2, and the left and right sides of cabinet 1 has a horizontal cross to place respectively
Piston cylinder 4, it is closed that one end of piston cylinder 4, which is fixed on cabinet 1 other end, is equipped with one and its in each piston cylinder 4
It is co-axially mounted and the first round tube 5 that one end is fixed on cabinet 1 and is connected to cabinet 1, the other end of the first round tube 5 stretches out piston
Cylinder 4, the part that the first round tube 5 is placed in piston cylinder 4 are cased with the piston 6 that can be moved left and right, the inner headed face of piston 6 and the first round tube
5 fit, and periphery fits with piston cylinder 4, piston cylinder 4 far from cabinet 1 end face be equipped with can supplied gas out of piston cylinder 4
First check valve 7 of outflow, periphery of the piston cylinder 4 close to cabinet 1 one end be equipped with can supplied gas flowed into piston cylinder 4
But second unidirectional 8 valve, piston 6 are unidirectional through first to the mobile air of the one end of piston 6 far from cabinet 1 far from 1 one end of cabinet
Valve 7 flows out, and the air close to one end of cabinet 1 is flowed into through the second unidirectional 8 valve, and piston 6 moves backward, the gas in piston cylinder 4
It is not in communication with the outside；
The second round tube 9 that diameter is greater than the first round tube 5 is fixed on the end face of the piston 6 far from cabinet 1, the second round tube 9
The other end is through the one end of piston cylinder 4 far from cabinet 1 and is fixed with a magnetic spheres 10, and the outside of each magnetic spheres 10 is set
There is a hemispherical magnetic sheath 11, the spherical outside surface of each magnetic sheath 11 is fixed with a buckle 12, and Internal Spherical Surface is fixed with a rope
Rope 13, the other end of rope 13 sequentially pass through magnetic spheres 10, the first round tube 5, the second round tube 9, cabinet 1 and with 2 phase of reel
Even, reel 2 rotation can be achieved two sides rope 13 tightening with loosen；The part that rope 13 is placed in the second round tube 9 is equipped with
The first pressure spring 14 that rope 13 can be made to reset to 2 direction of reel.
In order to realize piston 6 to far from impact in 1 moving process of cabinet it is excessive cannot buffer, the piston cylinder 4 is separate
The end face of cabinet 1 is equipped with the second pressure spring 15, and one end of the second pressure spring 15 is fixedly connected with 4 end face of piston cylinder, and the other end can connect
Piston 6 is touched, realizes that not will cause pulling force during to mobile far from cabinet 1 excessive by the setting of the second pressure spring 15
Realize the impact between piston 6 and piston cylinder 4.
In order to realize the fixation of the first pressure spring 14, fixed block 16 is fixed on the rope 13, the first pressure spring 14 is placed in solid
Determine between block 16 and magnetic spheres 10, the fixation of the first pressure spring 14 is realized by the setting of fixed block 16.
In order to realize that piston cylinder 4 preferably resets, the piston cylinder 4 is equipped with air inlet, air inlet far from the end face of cabinet 1
Mouth is equipped with the first sealing ring 17 that can be sealed against, and piston cylinder 4 is equipped with gas outlet, gas outlet close to the periphery of cabinet 1
It is equipped with the second sealing ring 18 that can be sealed against, is realized by the setting of air inlet and air outlet and was total in completion dragging
Afterwards, more quickly the present apparatus is collected.
Specific work process of the invention is：The present apparatus the first pressure spring 14 in the initial state, the second pressure spring 15, clockwork spring bullet
Spring 3 is in relaxation state, and the second round tube 9 is placed in piston cylinder 4 at this time and piston 6 is near 1 position of cabinet, and this
The air inlet of the second unidirectional 8 valve is not interfered under position and falls the outlet such as sealing ring, rope 13 is wrapped on reel 2 and rope 13
In tensioned state, magnetic sheath 11 is fixed under the magnetic force in magnetic spheres 10,.
When carrying out trailer operation, the buckle 12 of left and right two of the present apparatus is separately fixed to the trailer of front and back two automobiles
It on ring and realizes that it is fixed, starts front truck at this time, so that front truck travels forward, front truck drives the buckle 12 of one end to move at this time,
12 drive magnetic sheath 11 of buckle moves outward while buckling 12 stress, and magnetic sheath 11 drives sphere to transport outward at this time
Dynamic, the second round tube 9 slides in piston cylinder 4 to one end far from cabinet 1 with piston 6 in the process, and makes rope 13
It is moved to two sides, the movement of rope 13 drives reel 2 to rotate, while realizing the tightening of two clockwork springs 3.
In the process, the power that clockwork spring 3 overcomes required for crimping, which is less than required for the disengaging sphere of magnetic sheath 11, to be overcome
Power, therefore magnetic sheath 11 is without departing from magnetic spheres 10 and rope 13 can be while the first round tube 5 slides in piston cylinder 4
It is stretched out from reel 2, and remains the effect of tensioning during stretching, while the first 5 outside Slideslip of round tube
So that piston 6 is moved with trend far from the side of cabinet 1, and with the movement of piston 6, the side of i.e. separate cabinet 1 on the outside of piston 6
Gas flowed out out of first check valve 7, the inside machine of piston 6 close to the side of cabinet 1 air through the second unidirectional 8 valve stream
Enter, the first sealing ring 17 and the second sealing ring 18 completely enclose air inlet and air outlet at this time, with the fortune outward of piston 6
Dynamic, the second round tube 9 is elongated to longest with piston cylinder 4, and is being elongated to the longest compression realized in the process to the second pressure spring 15
To realize that the second round tube 9 realizes buffering with piston cylinder 4 in elongation process.
Front truck accelerates on this basis, and the second round tube 9 and piston cylinder 4 be not in the sliding for generating growth property, front truck at this time
Driving force can realize that magnetic sheath 11 and magnetic spheres 10 are detached from, magnetic force, the driving force of front truck can be overcome during disengaging
Lasting to increase, magnetic spheres 10 and magnetic sheath 11 are detached from, and realize that the block on rope 13 squeezes the first pressure spring 14, and make first
Pressure spring 14 has the trend and elastic potential energy of rebound, at this time as the increase of driving force overcomes the elastically-deformable of the first pressure spring 14
Power is bigger, and 3 amount of crimp of clockwork spring is bigger, to realize the first pressure spring 14 and the situation excessive in driving force of clockwork spring 3
Under to rear car starting buffer function.
It is completed with being buffered after the starting of two vehicles, realizes magnetic ball under the reset response of the first pressure spring 14 and clockwork spring 3
Body 10 is close to magnetic sheath 11, during close, realizes that magnetic spheres 10 are attracted to magnetism again under the magnetic force
In set 11, so that the present apparatus is become rigid connection structure.
In the state that front truck brakes suddenly, the trend that the oriented piston cylinder 4 of the first round tube 5 squeezes, in the process, piston
6 can slide in plug cylinder and piston 6 is close to cabinet 11, and 6 outside of piston forms negative pressure state with piston cylinder 4 in approach process
And has the tendency that through the first check valve 7 air-breathing into piston cylinder 4 but gas cannot be by the first check valve 7, while in work
Plug 6 is to cabinet 1 during, and the air pressure that piston cylinder 4 is placed in 6 inboard portion of piston increases, and air has by second
The trend that unidirectional 8 valve overflows, but gas cannot be by the second unidirectional 8 valve, to realize the buffer function to piston 6.
The present apparatus is removed after completing trailer, the first sealing ring 17 and the second sealing ring 18 are opened into the left side so that piston cylinder 4
Right two sides go atmospheric pressure to be connected to respectively, and the second round tube 9 is replaced in piston cylinder 4 and can be restored the present apparatus to initial shape
State.
The present apparatus, which compares traditional dragging device, following benefit：
1, be in the presence of during trailer front truck accelerate suddenly and emergency brake more than once, therefore brake suddenly in sleeper
Piston 6 is close to cabinet 1 in the case where rear car brake not in time, and the outside of piston 6 can form negative pressure in piston cylinder 4, this
Negative pressure can realize the separate trend of the oriented cabinet 1 of piston 6, while high pressure, two power can be formed in piston cylinder 4 on the inside of piston 6
Have and piston 6 is allowed to move to the direction far from cabinet 1, and the superposition of the two power improves the resistance of buffering course while making
Buffer it is more efficient, and this two power can with piston 6 to 1 movement degree of cabinet increase and increase.
2, the present apparatus effectively draw vehicle by three states, and front truck first has to gram in front truck accelerator
The magnetic force between magnetic spheres 10 and magnetic sheath 11 is taken, then rope 13 is pulled to realize compression first under the action of fixed block 16
Pressure spring 14 is buffered, and persistently tightening makes clockwork spring 3 also to absorb impact caused by the acceleration of a part at the same time
It is more preferable to obtain the buffering effect in accelerator, in two uniform motion, the first pressure spring 14 is resetted with clockwork spring 3, magnetic ball
Body 10 fits closely under the magnetic force with magnetic sheath 11, forms rigid connection, when front truck brakes suddenly, piston 6 is in work
Sliding compression air and formation negative pressure are in plug cylinder 4 to realize the buffering to vehicle.
Present inventive concept is novel, and clever structure is practical, is realized by the cooperation of two groups of buffer units in trailer mistake
The bidirectional buffering of journey, so that efficient in trailer process more reasonable benefit/risk.
Claims (4)
1. a kind of Trailer equipment with bidirectional buffering function, the cabinet sealed including one（1）, it is characterised in that cabinet（1）
Inside it is equipped with a reel（2）, reel（2）Two sides respectively have one can make its reset clockwork spring（3）, cabinet（1）'s
The piston cylinder that the left and right sides has a horizontal cross to place respectively（4）, piston cylinder（4）One end be fixed on cabinet（1）It is upper another
End is closed, each piston cylinder（4）It is inside equipped with a coaxial installation and one end is fixed on cabinet（1）Upper and and cabinet
（1）First round tube of connection（5）, the first round tube（5）The other end stretch out piston cylinder（4）, the first round tube（5）It is placed in piston cylinder
（4）Interior part is cased with the piston that can be moved left and right（6）, piston（6）Inner headed face and the first round tube（5）It fits, periphery
With piston cylinder（4）It fits, piston cylinder（4）Far from cabinet（1）End face be equipped with can supplied gas from piston cylinder（4）Interior outflow
First check valve（7）, piston cylinder（4）Close to cabinet（1）The periphery of one end be equipped with can supplied gas to piston cylinder（4）Interior inflow
It is second unidirectional（8）Valve, piston（6）To far from cabinet（1）One end is mobile to can be piston（6）Far from cabinet（1）One end sky
Gas is through the first check valve（7）Outflow, close to cabinet（1）One end air it is unidirectional through second（8）Valve flows into, piston（6）Reversely
It is mobile, piston cylinder（4）Interior gas is not in communication with the outside；
The piston（6）Far from cabinet（1）End face on be fixed with diameter greater than the first round tube（5）The second round tube（9）, second
Round tube（9）The other end run through piston cylinder（4）Far from cabinet（1）One end and be fixed with a magnetic spheres（10）, each magnetic
Property sphere（10）Outside be equipped with a hemispherical magnetic sheath（11）, each magnetic sheath（11）Spherical outside surface be fixed with a buckle
（12）, Internal Spherical Surface is fixed with a rope（13）, rope（13）The other end sequentially pass through magnetic spheres（10）, the first round tube
（5）, the second round tube（9）, cabinet（1）And and reel（2）It is connected, reel（2）Rotation can be achieved two sides rope（13）'s
It tightens and loosens；Rope（13）It is placed in the second round tube（9）Interior part, which is equipped with, can make rope（13）To reel（2）Direction resets
The first pressure spring（14）.
2. a kind of Trailer equipment with bidirectional buffering function according to claim 1, which is characterized in that the piston cylinder
（4）Far from cabinet（1）End face be equipped with the second pressure spring（15）, the second pressure spring（15）One end and piston cylinder（4）End face is fixed
Connection, the other end can contact piston（6）.
3. a kind of Trailer equipment with bidirectional buffering function according to claim 1, which is characterized in that the rope
（13）On be fixed with fixed block（16）, the first pressure spring（14）It is placed in fixed block（16）And magnetic spheres（10）Between.
4. a kind of Trailer equipment with bidirectional buffering function according to claim 1, which is characterized in that the piston cylinder
（4）Far from cabinet（1）End face be equipped with air inlet, air inlet is equipped with the first sealing ring that can be sealed against（16）, piston
Cylinder（4）Close to cabinet（1）Periphery be equipped with gas outlet, gas outlet is equipped with the second sealing ring that can be sealed against（18）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810790233.4A CN108909379B (en) | 2018-07-18 | 2018-07-18 | Trailer device with bidirectional buffering function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810790233.4A CN108909379B (en) | 2018-07-18 | 2018-07-18 | Trailer device with bidirectional buffering function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108909379A true CN108909379A (en) | 2018-11-30 |
| CN108909379B CN108909379B (en) | 2020-06-19 |
Family
ID=64414750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810790233.4A Active CN108909379B (en) | 2018-07-18 | 2018-07-18 | Trailer device with bidirectional buffering function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108909379B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111114218A (en) * | 2020-01-14 | 2020-05-08 | 三峡大学 | Traffic machinery traction device with automatic adjusting function and operation method |
| CN114109223A (en) * | 2021-11-29 | 2022-03-01 | 拉弗莱防坠落系统科技(苏州)有限公司 | Hidden safety hook of window |
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| CN2338196Y (en) * | 1998-09-24 | 1999-09-15 | 许金鲁 | Portable drawing buffering arrangement for motor vehicles |
| US6572132B1 (en) * | 2001-11-29 | 2003-06-03 | Jonathan R. Saul | Biased cable mechanism for trailer hitches |
| CN2710939Y (en) * | 2004-05-25 | 2005-07-20 | 肖工 | Shock-damp drawer for automobile |
| CN2730660Y (en) * | 2004-09-27 | 2005-10-05 | 中国石油天然气股份有限公司 | Car drawing device |
| CN101564969A (en) * | 2009-03-17 | 2009-10-28 | 罗志和 | Air damp type automobile traction rod |
| CN202038128U (en) * | 2011-04-12 | 2011-11-16 | 中国人民解放军总装备部军械技术研究所 | Two-way buffering traction device |
| CN103991345A (en) * | 2014-05-30 | 2014-08-20 | 宁波天益齿轴齿轮有限公司 | Tractor with cables fast to wind |
| CN204196614U (en) * | 2014-10-16 | 2015-03-11 | 慈溪市腾辉汽车零部件有限公司 | A kind of portable vehicle draw gear |
| CN106827984A (en) * | 2017-01-18 | 2017-06-13 | 瑞安市智造科技有限公司 | A kind of mechanical traction device with pooling feature |
| CN107696807A (en) * | 2017-09-29 | 2018-02-16 | 江阴市永昌交通机械部件有限公司 | A kind of Trailer equipment with pooling feature |
-
2018
- 2018-07-18 CN CN201810790233.4A patent/CN108909379B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2338196Y (en) * | 1998-09-24 | 1999-09-15 | 许金鲁 | Portable drawing buffering arrangement for motor vehicles |
| US6572132B1 (en) * | 2001-11-29 | 2003-06-03 | Jonathan R. Saul | Biased cable mechanism for trailer hitches |
| CN2710939Y (en) * | 2004-05-25 | 2005-07-20 | 肖工 | Shock-damp drawer for automobile |
| CN2730660Y (en) * | 2004-09-27 | 2005-10-05 | 中国石油天然气股份有限公司 | Car drawing device |
| CN101564969A (en) * | 2009-03-17 | 2009-10-28 | 罗志和 | Air damp type automobile traction rod |
| CN202038128U (en) * | 2011-04-12 | 2011-11-16 | 中国人民解放军总装备部军械技术研究所 | Two-way buffering traction device |
| CN103991345A (en) * | 2014-05-30 | 2014-08-20 | 宁波天益齿轴齿轮有限公司 | Tractor with cables fast to wind |
| CN204196614U (en) * | 2014-10-16 | 2015-03-11 | 慈溪市腾辉汽车零部件有限公司 | A kind of portable vehicle draw gear |
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| CN107696807A (en) * | 2017-09-29 | 2018-02-16 | 江阴市永昌交通机械部件有限公司 | A kind of Trailer equipment with pooling feature |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111114218A (en) * | 2020-01-14 | 2020-05-08 | 三峡大学 | Traffic machinery traction device with automatic adjusting function and operation method |
| CN111114218B (en) * | 2020-01-14 | 2021-05-14 | 三峡大学 | Traffic machinery traction device with automatic adjusting function and operation method |
| CN114109223A (en) * | 2021-11-29 | 2022-03-01 | 拉弗莱防坠落系统科技(苏州)有限公司 | Hidden safety hook of window |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108909379B (en) | 2020-06-19 |
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Effective date of registration: 20200117 Address after: Ganquan road Shushan District of Hefei City, Anhui Province, 230000 West hillock road to the South Wild Garden commercial office building room B-1512 Applicant after: Anhui Eagle Dragon Industrial Design Co., Ltd. Address before: 476000 No. 202, Building 1, Building 4, 71 Guide South Road, Liangyuan District, Shangqiu City, Henan Province Applicant before: Li Ke |
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Effective date of registration: 20200514 Address after: Group 1, Xuanmiao administrative village, Xuanmiao Town, Dangshan County, Suzhou City, Anhui Province Applicant after: Li Deliang Address before: Ganquan road Shushan District of Hefei City, Anhui Province, 230000 West hillock road to the South Wild Garden commercial office building room B-1512 Applicant before: ANHUI YINGLONG INDUSTRIAL DESIGN Co.,Ltd. |
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