CN104612545A - Single-power-source automatic double door controlled by crank double-slider mechanism - Google Patents
Single-power-source automatic double door controlled by crank double-slider mechanism Download PDFInfo
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- CN104612545A CN104612545A CN201510055832.8A CN201510055832A CN104612545A CN 104612545 A CN104612545 A CN 104612545A CN 201510055832 A CN201510055832 A CN 201510055832A CN 104612545 A CN104612545 A CN 104612545A
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- 239000002023 wood Substances 0.000 abstract 1
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- 230000000694 effects Effects 0.000 description 3
- 230000000994 depressogenic effect Effects 0.000 description 2
- 240000004859 Gamochaeta purpurea Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
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Abstract
A single-power-source automatic double door controlled by a crank-slider mechanism is composed of a right door body, a first shaft, a first connection bridge, a first spring, a first fixed rod, a connecting rope, a fixed pulley, a first fixed disk, a second shaft, a second connection bridge, a second spring, a second fixed rod, a second fixed disk, a door frame, a first pin shaft, a first joint lever, a second pin shaft, a second joint lever, a first slider, a third pin shaft, a third joint lever, a second slider, a fourth pin shaft, a rail, a fourth joint lever, a fifth pin shaft, a third slider, a fifth joint lever, a left door body, a sixth pin shaft, a sixth joint lever, a seventh pin shaft, a lever, a rotation shaft, a fixed block and an ejector rod. Compared with an existing single door, the single-power-source automatic double door can achieve opening and closing of the doors and a lock through automatic control, the operation is easier and more convenient when controlling is performed, the single-action-source automatic double-leave door can be opened and closed both inwards and outwards, and therefore the theftproof performance is better; meanwhile, the single-power-source automatic double door can be made of materials such as wood, metal and glass, and therefore the double door has the advantages of low cost, aesthetic property, practicability and safety.
Description
Technical field
The present invention relates to a kind of double door automatically, the single action that specifically a kind of crank double-slider mechanism controls is derived from dynamic double door.
Background technology
Door is a kind of door for people ADL turnover, and door leaf height is everlasting 1900 ~ 2100 millimeter, and width is 800 ~ 1000 millimeters, and auxiliary room is as 600 ~ 800 millimeters, the door of bath lavatory, storeroom, and transom height is generally 300 ~ 900mm.The door of industrial construction can suitably improve on demand.
At present, door is broadly divided into single door and double door.
And existing double door is all based on hand switch lock, rarely has the double door automatically controlling folding and switch lock.
Summary of the invention
The object of the invention is to overcome the deficiency of existing double door and the single action that provides brand-new a kind of crank double-slider mechanism to control is derived from dynamic double door.Specifically comprise: this double door is by right door, first axle, first connecting bridge, first spring, first fixed bar, connection cord, fixed pulley, first fixed disk, second axle, second connecting bridge, second spring, second fixed bar, second fixed disk, doorframe, first bearing pin, first connecting rod, second bearing pin, second connecting rod, first slide block, 3rd bearing pin, third connecting rod, second slide block, 4th bearing pin, track, double leval jib, 5th bearing pin, 3rd slide block, 5th connecting rod, left-hand door, 6th bearing pin, six-bar linkage, 7th bearing pin, lever, rotating shaft, fixed block, push rod forms.Compare existing single door, the present invention is by the automatic switch of control realization door and the switch of lock, and during control, operation is easier, due to inwardly outer folding, so theftproof performance is better.Meanwhile, material therefor of the present invention can be wooden, metal, glass etc., has therefore also taken into account low price, aesthetic property, practicality, safety simultaneously.
The present invention is achieved through the following technical solutions:
The single action that crank double-slider mechanism controls is derived from a dynamic double door, is: this double door is by right door (1) in technical scheme, first axle (2), first connecting bridge (3), first spring (4), first fixed bar (5), connection cord (6), fixed pulley (7), first fixed disk (8), second axle (9), second connecting bridge (10), second spring (11), second fixed bar (12), second fixed disk (13), doorframe (14), first bearing pin (15), first connecting rod (16), second bearing pin (17), second connecting rod (18), first slide block (19), 3rd bearing pin (20), third connecting rod (21), second slide block (22), 4th bearing pin (23), track (24), double leval jib (25), 5th bearing pin (26), 3rd slide block (27), 5th connecting rod (28), left-hand door (29), 6th bearing pin (30), six-bar linkage (31), 7th bearing pin (32), lever (33), rotating shaft (34), fixed block (35), push rod (36) forms.
During above-mentioned all parts combination, right door (1) and left-hand door (29) are hinged on the both sides of doorframe (14) by hinge, doorframe (14) is fixed on body of wall, and doorframe (14) has axis hole up and down, whole retaining mechanism is arranged on the inside of right door (1), locking mechanism structure is: the first connecting bridge (3) and the second connecting bridge (10) have through hole, first axle (2) is through the through hole of the first connecting bridge (3), the top of the first axle (2) is fixed with the first fixed disk (8), first spring (4) is arranged between the first fixed disk (8) and the first connecting bridge (3), the length of the first axle (2) is longer than the height of door (1), the through hole of the second connecting bridge (10) is passed on the top of the second axle (9), the bottom of the first axle (2) is fixed with the second fixed disk (13), second spring (11) is arranged between the second connecting bridge (10) and the second fixed disk (13), fixed pulley (7) is fixed on door (1), first fixed bar (5) left end is fixed on the first axle (2), right-hand member is connected with connection cord (6), connection cord (6) is walked around fixed pulley (7) other end and is connected to the second fixed bar (12) left end, second fixed bar (12) right-hand member is fixed on the second fixed disk (13), guide rail (24) is fixed on doorframe, and the first slide block (19) and the 3rd slide block (27) are arranged on doorframe top, and the second slide block (22) is arranged on guide rail (24), first bearing pin (15) is fixed on right door (1) upper end, its upper end through doorframe and first connecting rod (16) hinged, first connecting rod 23 is hinged by the second bearing pin (17) and second connecting rod (18), 3rd bearing pin (20) is fixed on the first slide block (19), and second connecting rod (18) and third connecting rod (21) are hinged on the first slide block (19) by the 3rd bearing pin (20), 4th bearing pin (23) is fixed on the second slide block (22), third connecting rod (21) and double leval jib (25) are hinged on the 4th bearing pin (23), chute is arranged at the second slide block (22) top, and the 4th bearing pin (23) is arranged in chute, 5th bearing pin (26) is fixed on the 3rd slide block (27), double leval jib (25) and the 5th connecting rod (28) are hinged on the 3rd slide block (27) by the 5th bearing pin (26), hinged by the 6th bearing pin (30) between 5th connecting rod (28) and six-bar linkage (31), the other end of six-bar linkage (31) is hinged on the 7th bearing pin (32), and the 7th bearing pin (32) is fixed on left-hand door (29) through doorframe lower end, track (24) lower end is fixed with push rod (36), lower end in the middle part of doorframe (14) top is fixed with fixed block (35), fixed block (35) is hinged with rotating shaft (34), rotating shaft (34) is provided with lever (33), the corresponding push rod (36) of lever (33) left end, the first axle (2) upper end of the corresponding retaining mechanism of lever (33) right-hand member.
The invention has the beneficial effects as follows:
1, structure composition of the present invention is novel unique, scientific and reasonable.
2, compare existing double door, the present invention is by the automatic switch of control realization door and the switch of lock, and during control, operation is easier, due to inwardly outer folding, so theftproof performance is better.
3, material therefor of the present invention can be wooden, metal, glass etc., therefore also takes into account low price aesthetic property, practicality, safety simultaneously.
4, the present invention can make the performance of door realize automation, also makes door significantly rise in value, and market prospects are very good.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further described.
Fig. 1 is structural representation of the present invention.
Fig. 2 is that in the present invention, retaining mechanism is arranged on the structural representation in right door (1).
Fig. 3 be lever in the present invention (33), rotating shaft (34) and fixed block (35) combination time structural representation.
Fig. 4 is the structural representation of push rod in the present invention (36).
In FIG, 1 is right door, and 14 is doorframes, and 15 is first bearing pins, 16 is first connecting rods, and 17 is second bearing pins, and 18 is second connecting rods, and 19 is first slide blocks, 20 is the 3rd bearing pins, and 21 is third connecting rods, and 22 is second slide blocks, and 23 is the 4th bearing pins, 24 is tracks, and 25 is double leval jib, and 26 is the 5th bearing pins, 27 is the 3rd slide blocks, and 28 is the 5th connecting rods, and 29 is left-hand doors, 30 is the 6th bearing pins, and 31 is six-bar linkage, and 32 is the 7th bearing pins.
In fig. 2,1 is right door, and 2 is first axles, and 3 is first connecting bridges, and 4 is first springs, 5 are, the first fixed bar, and 6 is connection cords, and 7 is fixed pulleys, and 8 is first fixed disks, 9 is second axles, and 10 is second connecting bridges, and 11 is second springs, and 12 is second fixed bars, and 13 is second fixed disks.
In figure 3,33 is levers, and 34 is rotating shafts, and 35 is fixed blocks.
In the diagram, 36 is push rods.
Detailed description of the invention
Now the present invention will be described in detail by reference to the accompanying drawings:
The present invention is by right door (1), first axle (2), first connecting bridge (3), first spring (4), first fixed bar (5), connection cord (6), fixed pulley (7), first fixed disk (8), second axle (9), second connecting bridge (10), second spring (11), second fixed bar (12), second fixed disk (13), doorframe (14), first bearing pin (15), first connecting rod (16), second bearing pin (17), second connecting rod (18), first slide block (19), 3rd bearing pin (20), third connecting rod (21), second slide block (22), 4th bearing pin (23), track (24), double leval jib (25), 5th bearing pin (26), 3rd slide block (27), 5th connecting rod (28), left-hand door (29), 6th bearing pin (30), six-bar linkage (31), 7th bearing pin (32), lever (33), rotating shaft (34), fixed block (35), push rod (36) forms.
Shown in Fig. 1 is structural representation of the present invention.Wherein, 1 is right door (1), 14 is doorframe (14), 15 is the first bearing pin (15), 16 is first connecting rod (15), 17 is the second bearing pin (17), 18 is second connecting rod (18), 19 is the first slide block (19), 20 is the 3rd bearing pins (20), 21 is third connecting rod (21), 22 is the second slide block (22), 23 is the 4th bearing pins (23), 24 is track (24), 25 is double leval jib (25), 26 is the 5th bearing pins (26), 27 is the 3rd slide blocks (27), 28 is the 5th connecting rods (28), 29 is left-hand door (29), 30 is the 6th bearing pins (30), 31 is six-bar linkage (31), 32 is the 7th bearing pins (32).
Shown in Fig. 2 is that in the present invention, retaining mechanism is arranged on the structural representation in right door (1).Wherein, 1 is right door (1), 2 is the first axle (2), 3 is the first connecting bridge (3), 4 is the first spring (4), 5 is the first fixed bar (5), 6 is connection cord (6), 7 is fixed pulley (7), and 8 is the first fixed disk (8), and 9 is the second axle (9), 10 is the second connecting bridge (10), 11 is the second spring (11), and 12 is the second fixed bar (12), and 13 is the second fixed disk (13).
Shown in Fig. 3 be lever in the present invention (33), rotating shaft (34) and fixed block (35) combination time structural representation.Wherein, 33 is lever (33), and 34 is rotating shaft (34), and 35 is fixed block (35).
Shown in Fig. 4 is the structural representation of push rod in the present invention (36).Wherein, 36 is push rod (35).
During above-mentioned all parts combination, right door (1) and left-hand door (29) are hinged on the both sides of doorframe (14) by hinge, doorframe (14) is fixed on body of wall, and doorframe (14) has axis hole up and down, whole retaining mechanism is arranged on the inside of right door (1), locking mechanism structure is: the first connecting bridge (3) and the second connecting bridge (10) have through hole, first axle (2) is through the through hole of the first connecting bridge (3), the top of the first axle (2) is fixed with the first fixed disk (8), first spring (4) is arranged between the first fixed disk (8) and the first connecting bridge (3), the length of the first axle (2) is longer than the height of door (1), the through hole of the second connecting bridge (10) is passed on the top of the second axle (9), the bottom of the first axle (2) is fixed with the second fixed disk (13), second spring (11) is arranged between the second connecting bridge (10) and the second fixed disk (13), fixed pulley (7) is fixed on door (1), first fixed bar (5) left end is fixed on the first axle (2), right-hand member is connected with connection cord (6), connection cord (6) is walked around fixed pulley (7) other end and is connected to the second fixed bar (12) left end, second fixed bar (12) right-hand member is fixed on the second fixed disk (13), guide rail (24) is fixed on doorframe, and the first slide block (19) and the 3rd slide block (27) are arranged on doorframe top, and the second slide block (22) is arranged on guide rail (24), first bearing pin (15) is fixed on right door (1) upper end, its upper end through doorframe and first connecting rod (16) hinged, first connecting rod 23 is hinged by the second bearing pin (17) and second connecting rod (18), 3rd bearing pin (20) is fixed on the first slide block (19), and second connecting rod (18) and third connecting rod (21) are hinged on the first slide block (19) by the 3rd bearing pin (20), 4th bearing pin (23) is fixed on the second slide block (22), third connecting rod (21) and double leval jib (25) are hinged on the 4th bearing pin (23), chute is arranged at the second slide block (22) top, and the 4th bearing pin (23) is arranged in chute, 5th bearing pin (26) is fixed on the 3rd slide block (27), double leval jib (25) and the 5th connecting rod (28) are hinged on the 3rd slide block (27) by the 5th bearing pin (26), hinged by the 6th bearing pin (30) between 5th connecting rod (28) and six-bar linkage (31), the other end of six-bar linkage (31) is hinged on the 7th bearing pin (32), and the 7th bearing pin (32) is fixed on left-hand door (29) through doorframe lower end, track (24) lower end is fixed with push rod (36), lower end in the middle part of doorframe (14) top is fixed with fixed block (35), fixed block (35) is hinged with rotating shaft (34), rotating shaft (34) is provided with lever (33), the corresponding push rod (36) of lever (33) left end, the first axle (2) upper end of the corresponding retaining mechanism of lever (33) right-hand member.
Transmission principle of the present invention is:
1, the process of retaining mechanism locking: when applying pressure in the upper end of the first axle (2), the first axle (2) moves down with the first fixed disk () 8, and then is compressed by the first spring (4); The first fixed bar (5) is driven to move down in the process that first axle (2) moves down, first fixed bar (5) pulls connection connection cord thereon (6), connection cord (6) drives the second fixed bar (12) to move up around fixed pulley, second fixed bar (12) drives the second fixed disk to move up, and then driving the second axle (9) to move up, the second spring (11) is compressed; When the first axle (2) upper part is pressed completely in door, the lower end of the first axle enters in the axis hole of doorframe (14) bottom, the upper end of the second axle (9) enters in the axis hole on doorframe (14) top, and now door (1) achieves and locks up and down simultaneously.
2, the process of retaining mechanism unblock: when the pressure of the first axle (2) upper end removes, under the elastic force effect of the first spring (4) and the second spring (11), retaining mechanism realizes the motion contrary with locking process, final first axle (2) moves upward, upper end returns to shown position, and lower end departs from the axis hole of doorframe (14) bottom; Second axle (11) moves downward, and upper end departs from the axis hole on doorframe (14) top.
3, the chute of the second slide block (22) upper end plays the effect of buffering.
4, Men Youguan is to the motion process opened: when door is closed, push rod (36) is by the left side jack-up of lever (33), first axle (2) is depressed by bar bar (33) right-hand member, door is in locking state, starting linear drive apparatus drives the second slide block (22) outwards to slide, second slide block (22) drive push rod (36) retreat and the upper end chute of the second slide block (22) along the 4th bearing pin (23) forward, 4th bearing pin (23) is motionless, first axle (2) upwards jack-up under the effect of the first spring (4), retaining mechanism is opened; When retaining mechanism is opened, the chute front end of the second slide block (22) upper end arrives the 4th bearing pin (23), the second slide block (22) by the 4th bearing pin (23) drive third connecting rod (21) and double leval jib (25) respectively to the right be moved to the left; Third connecting rod (21) drives the first slide block (19) to move right by the 3rd bearing pin (20) and second connecting rod (18) rotates, second connecting rod (18) drives the rotation of first connecting rod (16) by the second bearing pin (17), and first connecting rod (16) drives right door (1) to inner rotary by the first bearing pin (15); Double leval jib (25) drives the 3rd slide block (27) to move right by the 5th bearing pin (26) and the 5th connecting rod (28) rotates, 5th connecting rod (28) drives the rotation of six-bar linkage (31) by the 6th bearing pin (30), and six-bar linkage (31) drives left-hand door (29) to inner rotary by the 7th bearing pin (32); By the time when right door (1) and left-hand door (29) 90-degree rotation, door is opened completely, and the second slide block (22) stops outwards sliding.
4, door is by the motion process reaching pass: start linear drive apparatus oppositely drive the second slide block (22) inwardly to move, the second slide block (22) drive third connecting rod (21) and double leval jib (25) respectively left with move right; Third connecting rod (21) drives the first slide block (19) to be moved to the left by the 3rd bearing pin (20) and rotates with second connecting rod (18), second connecting rod (18) drives the rotation of first connecting rod (16) by the second bearing pin (17), and first connecting rod (16) drives right door (1) inwardly to rotate by the first bearing pin (15); Double leval jib (25) drives the 3rd slide block (27) to be moved to the left by the 5th bearing pin (26) and rotates with the 5th connecting rod (28), 5th connecting rod (28) drives the rotation of six-bar linkage (31) by the 6th bearing pin (30), and six-bar linkage (31) drives left-hand door (29) inwardly to rotate by the 7th bearing pin (32); By the time when right door (1) and left-hand door (29) are closed soon, push rod (36) arrives the position of bar bar (33) by lever (33) left side jack-up, first axle (2) is depressed by bar bar (33) right-hand member, retaining mechanism is locked, now door is closed completely, second slide block (22) stops inwardly sliding (when door is closed completely, also have certain angle between first connecting rod (16) and second connecting rod (18), between the 5th connecting rod (28) and six-bar linkage (31), prevent from forming dead point).
Claims (1)
1. the single action that crank double-slider mechanism controls is derived from a dynamic double door, it is characterized in that: this double door is by right door (1), first axle (2), first connecting bridge (3), first spring (4), first fixed bar (5), connection cord (6), fixed pulley (7), first fixed disk (8), second axle (9), second connecting bridge (10), second spring (11), second fixed bar (12), second fixed disk (13), doorframe (14), first bearing pin (15), first connecting rod (16), second bearing pin (17), second connecting rod (18), first slide block (19), 3rd bearing pin (20), third connecting rod (21), second slide block (22), 4th bearing pin (23), track (24), double leval jib (25), 5th bearing pin (26), 3rd slide block (27), 5th connecting rod (28), left-hand door (29), 6th bearing pin (30), six-bar linkage (31), 7th bearing pin (32), lever (33), rotating shaft (34), fixed block (35), push rod (36) forms,
During above-mentioned all parts combination, right door (1) and left-hand door (29) are hinged on the both sides of doorframe (14) by hinge, doorframe (14) is fixed on body of wall, and doorframe (14) has axis hole up and down, whole retaining mechanism is arranged on the inside of right door (1), locking mechanism structure is: the first connecting bridge (3) and the second connecting bridge (10) have through hole, first axle (2) is through the through hole of the first connecting bridge (3), the top of the first axle (2) is fixed with the first fixed disk (8), first spring (4) is arranged between the first fixed disk (8) and the first connecting bridge (3), the length of the first axle (2) is longer than the height of door (1), the through hole of the second connecting bridge (10) is passed on the top of the second axle (9), the bottom of the first axle (2) is fixed with the second fixed disk (13), second spring (11) is arranged between the second connecting bridge (10) and the second fixed disk (13), fixed pulley (7) is fixed on door (1), first fixed bar (5) left end is fixed on the first axle (2), right-hand member is connected with connection cord (6), connection cord (6) is walked around fixed pulley (7) other end and is connected to the second fixed bar (12) left end, second fixed bar (12) right-hand member is fixed on the second fixed disk (13), guide rail (24) is fixed on doorframe, and the first slide block (19) and the 3rd slide block (27) are arranged on doorframe top, and the second slide block (22) is arranged on guide rail (24), first bearing pin (15) is fixed on right door (1) upper end, its upper end through doorframe and first connecting rod (16) hinged, first connecting rod 23 is hinged by the second bearing pin (17) and second connecting rod (18), 3rd bearing pin (20) is fixed on the first slide block (19), and second connecting rod (18) and third connecting rod (21) are hinged on the first slide block (19) by the 3rd bearing pin (20), 4th bearing pin (23) is fixed on the second slide block (22), third connecting rod (21) and double leval jib (25) are hinged on the 4th bearing pin (23), chute is arranged at the second slide block (22) top, and the 4th bearing pin (23) is arranged in chute, 5th bearing pin (26) is fixed on the 3rd slide block (27), double leval jib (25) and the 5th connecting rod (28) are hinged on the 3rd slide block (27) by the 5th bearing pin (26), hinged by the 6th bearing pin (30) between 5th connecting rod (28) and six-bar linkage (31), the other end of six-bar linkage (31) is hinged on the 7th bearing pin (32), and the 7th bearing pin (32) is fixed on left-hand door (29) through doorframe lower end, track (24) lower end is fixed with push rod (36), lower end in the middle part of doorframe (14) top is fixed with fixed block (35), fixed block (35) is hinged with rotating shaft (34), rotating shaft (34) is provided with lever (33), the corresponding push rod (36) of lever (33) left end, the first axle (2) upper end of the corresponding retaining mechanism of lever (33) right-hand member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510055832.8A CN104612545B (en) | 2015-02-03 | 2015-02-03 | Single-power-source automatic double door controlled by crank double-slider mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510055832.8A CN104612545B (en) | 2015-02-03 | 2015-02-03 | Single-power-source automatic double door controlled by crank double-slider mechanism |
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| Publication Number | Publication Date |
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| CN104612545A true CN104612545A (en) | 2015-05-13 |
| CN104612545B CN104612545B (en) | 2017-01-18 |
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| CN201510055832.8A Active CN104612545B (en) | 2015-02-03 | 2015-02-03 | Single-power-source automatic double door controlled by crank double-slider mechanism |
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| CN104879018A (en) * | 2015-06-05 | 2015-09-02 | 太原轨道交通装备有限责任公司 | Two-door linkage structure |
| CN108972167A (en) * | 2018-09-03 | 2018-12-11 | 山东理工大学 | A kind of ensilage machine self-sharpening blade device |
| CN110029845A (en) * | 2019-04-18 | 2019-07-19 | 中国民航大学 | Vertical rotating solar energy intelligent garage |
| CN110259339A (en) * | 2019-05-31 | 2019-09-20 | 宿州闼闼晨瑞木业有限公司 | A kind of easy to disassemble and maintenance high-intensitive mute wood door |
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| CN113499000A (en) * | 2021-07-27 | 2021-10-15 | 上海高仙自动化科技发展有限公司 | Door opening structure, box body structure with same and cleaning robot |
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| CN116277074B (en) * | 2023-05-17 | 2023-10-10 | 五八智能科技(杭州)有限公司 | Single-drive bidirectional casting device and casting method based on robot |
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Address after: 531400 the Guangxi Zhuang Autonomous Region Baise Pingguo County Industrial Park Road 6 Guangxi Pingguo aluminum Anfu Door Co., Ltd. Patentee after: GUANGXI PINGGUOLV ANFU DOOR INDUSTRY CO., LTD. Address before: 531599 Dongning road 445, Tiandong County, Baise, the Guangxi Zhuang Autonomous Region Patentee before: GUANGXI PINGGUOLV ANFU DOOR INDUSTRY CO., LTD. |
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Effective date of registration: 20210331 Address after: 313012 Huzhou Shuanglin Industrial Park Development Co., Ltd Patentee after: Huzhou Shuanglin Industrial Park Development Co.,Ltd. Address before: 531400 the Guangxi Zhuang Autonomous Region Baise Pingguo County Industrial Park Road 6 Guangxi Pingguo aluminum Anfu Door Co., Ltd. Patentee before: GUANGXI PINGGUO ALUMINUM ANFU DOOR INDUSTRY Co.,Ltd. |
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Denomination of invention: An automatic double door with single action source controlled by crank double slider mechanism Effective date of registration: 20210629 Granted publication date: 20170118 Pledgee: Zhejiang Nanxun Rural Commercial Bank branch Shuanglin Limited by Share Ltd. Pledgor: Huzhou Shuanglin Industrial Park Development Co.,Ltd. Registration number: Y2021330000712 |
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