CN111691782B - Electric folding door capable of being opened and closed quickly - Google Patents
Electric folding door capable of being opened and closed quickly Download PDFInfo
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- CN111691782B CN111691782B CN202010593251.0A CN202010593251A CN111691782B CN 111691782 B CN111691782 B CN 111691782B CN 202010593251 A CN202010593251 A CN 202010593251A CN 111691782 B CN111691782 B CN 111691782B
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- push rod
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- 230000005540 biological transmission Effects 0.000 claims description 5
- 244000309464 bull Species 0.000 claims description 2
- 230000007246 mechanism Effects 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/60—Power-operated mechanisms for wings using electrical actuators
- E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
- E05F15/605—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for folding wings
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/32—Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing
- E06B3/48—Wings connected at their edges, e.g. foldable wings
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
- E05Y2900/13—Type of wing
- E05Y2900/132—Doors
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- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Power-Operated Mechanisms For Wings (AREA)
Abstract
The invention discloses an electric folding door capable of being opened and closed quickly, which mainly comprises a door frame, a door leaf, a small sliding door leaf, a small rotating door leaf, a motor, a large gear, two small gears meshed with the large gear and two crank block mechanisms, wherein a rotating shaft is fixedly connected with an output shaft of a main motor, two cranks are respectively hinged on the upper end surfaces of the two small gears meshed with the large gear, the sliding rotating door leaf and a female rotating door leaf rotate in one direction when the large gear rotates, the small sliding door leaf is retracted under the action of the pulling force of a rack while the small sliding door leaf rotates, the rack on the other side can enable a gear shaft to rotate under the action of a push rod, a rotor rotating door leaf can be driven to rotate to approach to the female rotating door leaf while the rotor rotating, when a lifting motor is started, the rotating shaft can be lifted upwards under the action of a lead screw, at the moment, the sliding door leaf and the female rotating door leaf can not rotate when the main motor is started, the small sliding door leaf and the sub rotating door leaf can still do sliding and rotating actions of pushing and pulling, the invention has the characteristics of quick opening and closing, multiple functions and capability of meeting different use requirements.
Description
Technical Field
The invention relates to the field of door and window manufacturing, in particular to an electric folding door capable of being opened and closed quickly.
Background
Along with the development of industrial society, the industrialization degree of modern factories is higher and higher, the industrialization degree is not only embodied on a high-automation production line, but also embodied on the square surface in a factory, a door of a factory building is a good example, workers can pass through a door of the factory building and vehicles for transporting materials can pass through the door in the usual production process, in order to ensure the production work efficiency, the quickly opened and closed door of the factory building is needed, most of the existing doors applied in the factory are lifting doors and rolling doors, and the door has the defect of slow action, so that the quickly opened and closed electric folding door provided by the invention can realize different opening modes according to two conditions of goods and workers.
Disclosure of Invention
The invention provides the electric folding door capable of being opened and closed quickly aiming at the technical problems, can effectively solve the technical problems, and has the advantages of rapid reversing and saving, simple operation and capability of realizing different opening modes according to two conditions of goods and workers.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: the utility model provides an electronic folding door of quick switching, including the door frame, little fan push-and-pull door, push-and-pull changes the fan, the extension spring, female changes the fan, little pivot, son changes the fan, promote the motor, the motor cabinet, the lead screw, big sprocket shaft support, the slider, a slide rail, big sprocket shaft, the door leaf pillar, big sprocket, the chain, little sprocket shaft, the pivot, the gear wheel, the commentaries on classics door gear, commentaries on classics door gear axle, the commentaries on classics door crank, the rack push rod, the cylinder gear axle, the rack, the bearing frame, commentaries on classics door fixed plate, rack push rod slide, unable adjustment base, main motor, push-and-pull door fixed plate, push-and-pull door gear, push-and-pull door crank, push-pull door gear axle shaft, the sprocket push rod slide, the sprocket shaft sleeve.
The gear wheel forms the gear cooperation with the revolving door gear, the coaxial fixed mounting of revolving door gear is on the revolving door gear axle, the articulate one end of revolving door is articulated with the up end of revolving door gear, the other end is articulated with the one end of rack push rod, the other end and the rack fixed connection of rack push rod, rack push rod and rack push rod slide sliding connection, cylindrical gear axle and the coaxial fixed connection of little pivot, the up end of cylindrical gear axle and the lower terminal surface coincidence of little pivot, cylindrical gear axle forms the rack and pinion cooperation with the rack, little pivot fixed mounting is on female commentaries on classics fan, son changes fan and little pivot fixed connection.
The sliding door gear is matched with the large gear, the sliding door gear is fixedly arranged on a sliding door gear shaft, one end of a sliding door crank is hinged with the upper end face of the sliding door gear, the other end of the sliding door crank is hinged with one end of a chain wheel push rod, the other end of the chain wheel push rod is fixedly connected with a chain wheel push rod sliding seat, the chain wheel push rod sliding seat is coaxially and fixedly connected with a large chain wheel shaft, the chain wheel push rod sliding seat is rotatably connected with a large chain wheel shaft support, the large chain wheel shaft support is fixedly arranged on a sliding block, a sliding rail is fixedly arranged on a sliding door fixing plate, the sliding block is slidably connected with the sliding rail, one end of a chain is fixedly arranged on the sliding door fixing plate, the other end of the chain is fixedly arranged on a small sliding door, the large chain wheel and the chain form chain transmission, the small chain wheel and the chain form chain transmission, and the small chain wheel is rotatably connected with a small chain wheel shaft, the small chain wheel shaft is fixedly arranged on the push-pull rotating fan; one end of the tension spring is fixedly arranged on the small sliding door, the other end of the tension spring is fixedly arranged on the push-pull rotating door, and the small sliding door is connected with the push-pull rotating door in a sliding manner.
Furthermore, the lifting motor is fixedly installed on the motor base, the motor base is fixedly installed on the door frame, the lead screw is fixedly installed on an output shaft of the lifting motor, and the lead screw and the rotating shaft form a thread pair.
Further, the output shaft of main motor and pivot fixed connection, push-and-pull door fixed plate fixed mounting are on the push-and-pull door gear shaft, push-and-pull door gear shaft and unable adjustment base sliding connection, revolving door fixed plate fixed mounting is on the revolving door gear shaft, revolving door gear shaft and unable adjustment base sliding connection.
Furthermore, one end of the door leaf pillar is fixedly arranged on a fixed plate of the sliding door, and the other end of the door leaf pillar is fixedly arranged on the push-pull rotating fan.
Furthermore, the rotating shaft sleeve part of the push-pull rotating fan is coaxial with the rotating shaft, and the female rotating fan is fixedly connected with the rotating shaft sleeve of the push-pull rotating fan.
Furthermore, the chain wheel push rod is connected with a chain wheel push rod sliding seat in a sliding mode, and the chain wheel push rod sliding seat is fixedly installed on a fixed plate of the sliding door.
Furthermore, the bearing seat is fixedly arranged on the revolving door fixing plate, and the cylindrical gear shaft is rotatably connected with the bearing seat.
Furthermore, the rotating shaft is provided with four groups of fixing strips.
Further, the gear ratio of the sliding door gear, the revolving door gear and the bull gear is 1: 2.
compared with the prior art, the invention has the beneficial effects that: (1) the door leaf can be folded to realize rapid opening and closing; (2) the two door leaves can act independently, and the opening mode of the door can be controlled according to goods or pedestrians; (3) and an electric mode is adopted, so that the operation is simple.
Drawings
FIG. 1 is a schematic view of the overall structure of the back side of the present invention.
FIG. 2 is a partially enlarged view of the present invention.
Fig. 3 is a partially enlarged schematic view showing a part of the lifting motor alone.
Fig. 4 is a partially enlarged schematic view showing the structure below the door alone.
FIG. 5 is a schematic view of the overall structure of the front side of the present invention.
FIG. 6 is a partially enlarged view of the lower structure of the front view of the present invention.
Fig. 7 is a schematic view of the spindle structure designated by reference numeral 20.
Reference numerals: 1-a door frame; 2, a small sliding door; 3, pushing, pulling and rotating the fan; 4-a tension spring; 5-mother rotating the fan; 6-small rotating shaft; 7-rotating the fan; 8-a hoisting motor; 9-a motor base; 10-a lead screw; 11-big chain wheel shaft support; 12-a slide block; 13-a slide rail; 14-big sprocket shaft; 15-door leaf strut; 16-a large sprocket; 17-a chain; 18-a small sprocket; 19-small sprocket shaft; 20-a rotating shaft; 21-gearwheel; 22-a swing door gear; 23-revolving door gear shaft; 24-a swing door crank; 25-rack push rod; 26-cylindrical gear shaft; 27-a rack; 28-a bearing seat; 29-revolving door fixing plate; 30-rack push rod slide; 31-a stationary base; 32-a main motor; 33-sliding door fixing plate; 34-sliding door gear; 35-a sliding door crank; 36-sliding door gear shaft; 37-sprocket pusher; 38-sprocket push rod slide; 39-sprocket bushing.
Detailed Description
The present invention will be further described with reference to specific examples, which are illustrative of the invention and are not to be construed as limiting the invention.
Example 1:
fig. 1 and 5 are schematic views of the overall structure of the present invention, in which four threaded holes are processed on the fixing base 31 for fixing the fixing base 31 to the ground during installation, the fixing base provides an installation platform for other components of the present invention, and the relative positions of the components are as shown in fig. 1 but not limited to fig. 1, so as to ensure that the folding door can normally realize the set opening and closing movement as a technical standard.
The left side of the rotating shaft 20 shown in fig. 1 is a rotating sliding door, and the right side of the rotating shaft 20 is a double-rotating door. A sliding door gear 34 is in gear fit with the large gear 21, the sliding door gear 34 is fixedly arranged on a sliding door gear shaft 36, one end of a sliding door crank 35 is hinged with the upper end face of the sliding door gear 34, the other end of the sliding door crank 35 is hinged with one end of a chain wheel push rod 37, the other end of the chain wheel push rod 37 is fixedly connected with a chain wheel push rod slide seat 38, the chain wheel push rod slide seat 38 is coaxially and fixedly connected with a large chain wheel shaft 14, the chain wheel push rod slide seat 38 is rotatably connected with a large chain wheel shaft support 11, a large chain wheel 16 is coaxially and fixedly arranged on the large chain wheel shaft 14, the large chain wheel shaft support 11 is fixedly arranged on a slide block 12, the slide rail 13 is fixedly arranged on a sliding door fixing plate 33, the slide block 12 is slidably connected with the slide rail 13, one end of a chain 17 is fixedly arranged on the sliding door fixing plate 33, the other end is fixedly arranged on the small sliding door 2, and the large chain wheel 16 and the chain 17 form chain transmission, the small chain wheel 18 and the chain 17 form chain transmission, the small chain wheel 18 is rotationally connected with a small chain wheel shaft 19, and the small chain wheel shaft 19 is fixedly arranged on the push-pull rotating fan 3; one end fixed mounting of extension spring 4 is on little push-and-pull door 2, the other end fixed mounting pushes away to draw changes on 3, little push-and-pull door 2 with push away to draw changes 3 sliding connection of fan, the output shaft and the pivot 20 fixed connection of main motor 32, when main motor 32 starts, can drive pivot 20 and rotate, pivot 20 rotates and can drive gear wheel 21 and rotate, and then gear wheel 21 can drive push-and-pull door gear 34 and rotate, push-and-pull door gear 34 will make push-and-pull door crank 35 and push-and-pull door gear 34 articulated one end be circular motion, push-and-pull door crank 35 will make sprocket push rod 37 promote big sprocket 16 and slide along slide rail 13, gliding in-process big sprocket 16 will rotate on chain 17, and then drive little sprocket 18 and rotate, little push-and-pull door 2 will realize the withdrawal under the pulling of chain 17.
The large gear 21 on the other side of the rotating shaft 20 forms a gear fit with the revolving door gear 22, the revolving door gear 22 is coaxially and fixedly installed on a revolving door gear shaft 23, one end of a revolving door crank 24 is hinged with the upper end face of the revolving door gear 22, the other end of the revolving door crank is hinged with one end of a rack push rod 25, the other end of the rack push rod 25 is fixedly connected with a rack push rod 27, the rack push rod 25 is slidably connected with a rack push rod slideway 30, a cylindrical gear shaft 26 is coaxially and fixedly connected with a small rotating shaft 6, the upper end face of the cylindrical gear shaft 26 is overlapped with the lower end face of the small rotating shaft 6, the cylindrical gear shaft 26 forms a gear-rack fit with the rack 27, the small rotating shaft 6 is fixedly installed on a main rotating fan 5, a sub rotating fan 7 is fixedly connected with the small rotating shaft 6, the large gear 21 can drive the revolving door gear 22 to rotate together, the revolving door gear 22 can drive the revolving door crank 24 hinged with the same to do a circular motion when rotating door gear 22 rotates, and the rack 27 can drive the cylindrical gear shaft 26 to rotate under the action of the rack push rod 25, the rotation of the cylindrical gear shaft 26 brings the rotor rotating fan 7 to rotate.
Sliding door fixed plate 33 fixed mounting is on sliding door gear shaft 36, sliding door gear shaft 36 and unable adjustment base 31 sliding connection, revolving door fixed plate 29 fixed mounting is on revolving door gear shaft 23, revolving door gear shaft 23 and unable adjustment base 31 sliding connection, when the push-and-pull changes 3 and mother and changes 7 rotations of fan, sliding door fixed plate 33 and revolving door fixed plate 29 also can rotate simultaneously, revolving door gear shaft 23 and sliding door gear shaft 36 can slide on unable adjustment base 31 simultaneously, the one end fixed mounting of door leaf pillar 15 is on sliding door fixed plate 33, other end fixed mounting is on pushing and pulling commentaries on classics fan 3, door leaf pillar 15 here has played the effect that supports pushing and pulling commentaries on classics fan 3, the tooth ratio of sliding door gear 34 and revolving door gear 22 and gear wheel 21 is 1: 2, the gear ratio of the gear shaft 26 to the rack 27 is 2: 1, the child door leaf 7 can rotate 180 degrees and be attached to the mother door leaf 5 when the mother door leaf 5 rotates 90 degrees.
Claims (6)
1. The utility model provides an electronic folding door of quick switching, including door frame (1), little fan push-and-pull door (2), the push-and-pull changes fan (3), extension spring (4), female commentaries on classics fan (5), little pivot (6), son changes fan (7), lifting motor (8), motor cabinet (9), lead screw (10), big sprocket shaft support (11), slider (12), slide rail (13), big sprocket shaft (14), door leaf pillar (15), big sprocket (16), chain (17), little sprocket (18), little sprocket shaft (19), pivot (20), gear wheel (21), change door gear (22), change door gear shaft (23), change door crank (24), rack push rod (25), cylinder (26), rack (27), gear shaft (28), change door fixed plate (29), rack push rod slide (30), unable adjustment base (31), main motor (32), push door fixed plate (33), Push-and-pull door gear (34), push-and-pull door crank (35), push-and-pull door gear shaft (36), sprocket push rod (37), sprocket push rod slide (38), sprocket shaft sleeve (39), its characterized in that:
the lifting motor (8) is fixedly arranged on the motor base (9), the motor base (9) is fixedly arranged on the door frame (1), the lead screw (10) is fixedly arranged on an output shaft of the lifting motor (8), and the lead screw (10) and the rotating shaft (20) form a thread pair;
the large gear (21) and the revolving door gear (22) form gear fit, the revolving door gear (22) is coaxially and fixedly installed on a revolving door gear shaft (23), a revolving door fixing plate (29) is fixedly installed on the revolving door gear shaft (23), one end of a revolving door crank (24) is hinged with the upper end face of the revolving door gear (22), the other end of the revolving door crank is hinged with one end of a rack push rod (25), the other end of the rack push rod (25) is fixedly connected with a rack (27), the rack push rod (25) is slidably connected with a rack push rod slideway (30), a cylindrical gear shaft (26) is coaxially and fixedly connected with a small rotating shaft (6), the upper end face of the cylindrical gear shaft (26) is overlapped with the lower end face of the small rotating shaft (6), the cylindrical gear shaft (26) and the rack (27) form gear-rack fit, the small rotating shaft (6) is fixedly installed on a main revolving door leaf (5), and a sub revolving door leaf (7) is fixedly connected with the small rotating shaft (6);
the sliding door gear (34) is in gear fit with the large gear (21), the sliding door gear (34) is fixedly mounted on a sliding door gear shaft (36), the sliding door gear shaft (36) is in sliding connection with the fixed base (31), the rotating door gear shaft (23) is in sliding connection with the fixed base (31), an output shaft of the main motor (32) is fixedly connected with the rotating shaft (20), a sliding door fixing plate (33) is fixedly mounted on the sliding door gear shaft (36), one end of a sliding door crank (35) is hinged with the upper end face of the sliding door gear (34), the other end of the sliding door crank (35) is hinged with one end of a chain wheel push rod (37), the other end of the chain wheel push rod (37) is fixedly connected with a chain wheel push rod sliding seat (38), the chain wheel push rod sliding seat (38) is coaxially and fixedly connected with the large chain wheel shaft (14), the chain wheel push rod sliding seat (38) is rotatably connected with the large chain wheel seat (11) and is coaxially and fixedly mounted on the large chain wheel shaft (14), the large chain wheel shaft support (11) is fixedly arranged on the sliding block (12), the sliding rail (13) is fixedly arranged on a sliding door fixing plate (33), the sliding block (12) is in sliding connection with the sliding rail (13), one end of the chain (17) is fixedly arranged on the sliding door fixing plate (33), the other end of the chain (17) is fixedly arranged on the small sliding door (2), the large chain wheel (16) and the chain (17) form chain transmission, the small chain wheel (18) is rotatably connected with the small chain wheel shaft (19), and the small chain wheel shaft (19) is fixedly arranged on the push-pull rotating door leaf (3); one end fixed mounting of extension spring (4) is on little push-and-pull door (2), and other end fixed mounting is on pushing away to draw changes fan (3), push away to draw the pivot cover part that changes fan (3) coaxial with pivot (20), and female commentaries on classics fan (5) and the push-and-pull change the pivot cover fixed connection of fan (3), little push-and-pull door (2) and the push-and-pull change fan (3) sliding connection.
2. The power folding door capable of being opened and closed quickly as claimed in claim 1, wherein: one end of the door leaf pillar (15) is fixedly arranged on the sliding door fixing plate (33), and the other end is fixedly arranged on the push-pull rotating leaf (3).
3. The power folding door capable of being opened and closed quickly as claimed in claim 1, wherein: the chain wheel push rod (37) is connected with a chain wheel push rod sliding seat (38) in a sliding mode, and the chain wheel push rod sliding seat (38) is fixedly installed on the sliding door fixing plate (33).
4. The power folding door capable of being opened and closed quickly as claimed in claim 1, wherein: the bearing seat (28) is fixedly arranged on the revolving door fixing plate (29), and the cylindrical gear shaft (26) is rotationally connected with the bearing seat (28).
5. The power folding door capable of being opened and closed quickly as claimed in claim 1, wherein: the rotating shaft (20) is provided with four groups of fixing strips.
6. The power folding door capable of being opened and closed quickly as claimed in claim 1, wherein: the gear ratio of the sliding door gear (34) to the rotating door gear (22) to the bull gear (21) is 1: 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010593251.0A CN111691782B (en) | 2020-06-26 | 2020-06-26 | Electric folding door capable of being opened and closed quickly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010593251.0A CN111691782B (en) | 2020-06-26 | 2020-06-26 | Electric folding door capable of being opened and closed quickly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111691782A CN111691782A (en) | 2020-09-22 |
| CN111691782B true CN111691782B (en) | 2021-11-19 |
Family
ID=72484028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010593251.0A Active CN111691782B (en) | 2020-06-26 | 2020-06-26 | Electric folding door capable of being opened and closed quickly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111691782B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112696115A (en) * | 2020-12-03 | 2021-04-23 | 苏州立科工业设计有限公司 | Automatic opening equipment for access door of workshop |
| CN112746794A (en) * | 2020-12-19 | 2021-05-04 | 安徽长江钢铁股份有限公司 | Automatic door opener of slag discharge door of iron-making coal-injection powder-making equipment |
| CN114991611B (en) * | 2022-06-20 | 2023-08-01 | 福耀玻璃工业集团股份有限公司 | Window structure, door and window assembly and car |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2193416Y (en) * | 1994-04-07 | 1995-03-29 | 四川新特科技有限公司铝门窗厂 | Folding door and window |
| AT405861B (en) * | 1995-11-09 | 1999-12-27 | Liberda Viktor | SWIVEL GATE OR FOLDING DOOR |
| CN201225060Y (en) * | 2008-01-04 | 2009-04-22 | 陈金涛 | Multiple-leaf electric folding door |
| CN101892792A (en) * | 2009-05-21 | 2010-11-24 | 李朋飞 | Suspension plate type motor-driven folding door |
| BR102014021652B1 (en) * | 2014-09-01 | 2017-02-07 | Fuillarat Junior Raphael | automated mechanism for glazing drive |
| CA2911917C (en) * | 2015-07-17 | 2023-02-28 | Michael L. Schweiss | Bi-fold door latch assembly |
| CN206458242U (en) * | 2016-12-09 | 2017-09-01 | 天津语山科技有限公司 | A kind of intelligent repository door for wholesale business |
-
2020
- 2020-06-26 CN CN202010593251.0A patent/CN111691782B/en active Active
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| CN111691782A (en) | 2020-09-22 |
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Effective date of registration: 20211104 Address after: 311400 No. 119, Xingyuan Road, Dayuan Town, Fuyang District, Hangzhou City, Zhejiang Province Applicant after: ZHEJIANG DE MAI DOOR TECHNOLOGY Co.,Ltd. Address before: 200032 No. 138, Xuhui District Medical College, Shanghai Applicant before: Han Liyuan |
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