CN101792084A - Energy-saving environment-friendly double-power lift - Google Patents
Energy-saving environment-friendly double-power lift Download PDFInfo
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- CN101792084A CN101792084A CN201010105878A CN201010105878A CN101792084A CN 101792084 A CN101792084 A CN 101792084A CN 201010105878 A CN201010105878 A CN 201010105878A CN 201010105878 A CN201010105878 A CN 201010105878A CN 101792084 A CN101792084 A CN 101792084A
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Abstract
The invention relates to an energy-saving environment-friendly double-power lift which can operate manually and electrically. The invention is characterized in that a motor drives a lead screw to rotate, and a nut which is matched with the lead screw is fixed; meanwhile, in order to reduce the force input when the lift operates manually and lower the power of the motor when the lift operates electrically, a set of counterweights are additionally provided; a lift car is in a knapsack structure, and a driving part and a guiding device are positioned at the back and can be installed at a single wall; a rope hitch plate of the lift car is arranged at the top of the lift car, can balance loads and can simultaneously shorten the thickness of the bottom of the lift car to 30mm, thereby effectively reducing the requirement of a pit; and the rope hitch of the lift car is placed horizontally, and compared with the vertically placing mode, the horizontally placing mode can effectively reduce the requirement of the top space. The lift of the invention is an improvement and a supplement of the prior art, has the advantages of low energy consumption when the lift operates electrically, no energy consumption when the lift operates manually, low noise, high transmission efficiency, easy switching between the manually operating mode and the electrically operating mode and flexible and convenient use, is suitable for family residences and barrier-free places, can save energy, and can be used for body building.
Description
Technical field
The present invention relates to a kind of energy-saving environment-friendly double-power lift, it is the elevator of a kind of hand, electric hybrid control operation, it drives down-feed screw rotation by electricity and drives nut engaged and the lifting that is fixed on the car realization elevator on the nut with it, also can make nut and the car that is fixed on the nut realize lifting, be suitable for home dwelling and accessible place and use by manual unit.
Background technology
Along with the raising of social senilization and civilization degree, people are also increasing to the demand of small home residential lift.And along with the day of the energy is becoming tight, more and more higher to the energy-conserving and environment-protective aspect requirement of elevator.Common traction elevator, usually need a mini machine room and easy control cabin/cabinet at least, this needs strict top layer and pit height, so traction elevator is applicable to building on the middle and senior level building mostly, for low-rise building or villa and public place and be not suitable for.Existing in recent years small-sized screw mandrel and winch formula elevator, energy consumption is big during operation, noise is big, driving efficiency is low, and these devices all can't use under the situation that has a power failure or cut off the electricity supply, adopt backup power during the power failure that has, big to energy consumption, these small-sized elevators all are not suitable for being installed in the home dwelling.
Invention once has " manual-automatic integral lifting gear " before the inventor, has hand, electric hybrid control equally, but that this is invented to screw mandrel is motionless, and manned is fixed on the ball nut, and ball nut drives manned lifting in leg.But the design of manual unit was not ideal enough in should inventing, and whole ladder operation exists shortcomings such as noise is big, driving efficiency is low.
Summary of the invention
The invention provides a kind of energy-saving environment-friendly double-power lift, can move by manual and electronic dual mode, it drives a down-feed screw by electricity and rotates and drive nut engaged with it and be fixed on the electronic oscilaltion operation that car on the nut is realized lift car, also can rotate the lifting that realizes lift car up and down along screw mandrel by manually ordering about nut, it is little that the present invention has the electric operation energy consumption, noise is little, the driving efficiency height, torch switches easily, flexible and convenient to use, when having a power failure suddenly or cutting off the electricity supply situation, use especially, do not need backup power yet, be particularly suitable for home dwelling and accessible place and use.
A kind of energy-saving environment-friendly double-power lift of the present invention, during electric operation, screw mandrel rotates, and nut portion has the power-transfer clutch protection to guarantee that nut can not rotate, and is safe and reliable; Increase counterweight simultaneously, can reduce energy resource consumption.
It comprises that an electric operation mechanism and manually installs, and when electronic, the motor-driven screw mandrel rotates, and with the screw mandrel nut engaged, nut maintains static; Increased by a cover counterweight simultaneously, the reduction of power of motor when the power of input reduces with electric operation during for manual operation, thus reduce the input of energy resource consumption and manual operation power effectively; Car adopts the Backpack type structure, and drive part and guide piece are positioned at back one side, but also perpend wall is installed; The car rope hitch plate is loaded on car top, can balanced load, and make reduced down in thickness at the bottom of the sedan-chair to 30mm simultaneously, reduce the pit requirement effectively; The combination of car fag end is adopted to crouch and is put, and compares the requirement that vertical placement can effectively reduce overhead.
The present invention is improvements over the prior art and replenishes, a kind of energy-saving environment-friendly double-power lift that provides can move by manual and electronic dual mode, and it is little to have the electric operation energy consumption, manually move passive consumption, and having that noise is little, driving efficiency is high, torch switches easily, and is flexible and convenient to use, when having a power failure suddenly or cutting off the electricity supply situation, use especially, do not need backup power yet, be particularly suitable for home dwelling and accessible place and use, not only energy-conservation but also can do body-building and use.
Description of drawings
Fig. 1 is structural representation of the present invention (facade);
Fig. 2 is the schematic top plan view of Fig. 1;
Fig. 3 is the structural representation of part 5 (manual unit) among Fig. 1;
Fig. 4 is part 14 among Fig. 1 (car fag end assembly) scheme of installation.
Indicate among the figure: 1, motor, 2, coupler, 3, screw mandrel upper support seat, 4, upper support frame, 5, manual unit, 6, nut, 7, screw mandrel, 8, screw mandrel lower support seat, 9, the lower support frame, 10, car, 11, counterweight, 12, the counterweight guide rail, 13, car is led boots, 14, car fag end assembly, 15, car guide rail, 16, follower, 17, driving wheel, 18, adaptor union, 19, handwheel, 20, hand wheel shaft, 21, main wheel, 22 of passing, drg, 23, flower wheel, 24, power-transfer clutch, 25, gear cluster, 26, counterweight fag end assembly, 27, the counterweight track adjusting wheel, 28, the car track adjusting wheel, 29, wheel flutter, 30, car fag end component mounting block, 31, the manual unit adapter plate.
The specific embodiment
Accompanying drawing 1-4 is a most preferred embodiment of the present invention.
Below in conjunction with accompanying drawing detailed technology content of the present invention and embodiment are described in further detail; The mark that need to prove accompanying drawing only is reference marker.
A kind of energy-saving environment-friendly double-power lift of the present invention contains manually and electronic two kinds of operation scheme, and it comprises,
One leg is directly made elevator hoistways; The present invention such as described leg material therefor and shape are restriction in advance not;
The car 10 of a manned or thing, described car 10 is fixed on a side of nut 6 for Backpack type, and the cross-sectional plane of car 10 and the cross-sectional plane of leg are consistent and can make car 10 lifting in leg, and structure the present invention of car 10 does not limit;
One electric transmission comprises, motor 1, coupler 2, the screw mandrel 7 that can vertically rotate are relative static nut 6 with matching with screw mandrel, and described motor 1 be rotation synchronously with coupler 2 and screw mandrel 7 threes;
A pair of refitting is put, and comprises that counterweight 11, counterweight guide rail 12, car lead boots 13, car guide rail 15, because the deadweight of counterweight 11 can be offset the deadweight of part load-carrying and car 10, thereby reduces the required moment of torsion of motor 1 operation greatly, and reaches purpose of energy saving;
One cover car fag end assembly 14, car fag end assembly 14 crouches and puts the top that is arranged in car 10, can make reduced down in thickness at the bottom of the sedan-chair to 30mm;
One manual device 5, manual unit 5 can be in conjunction with the accompanying drawings 3 structures that are well understood to it; Described manual unit 5 is fixed on the back of car 10 by manual unit adapter plate 31, manual unit 5 comprises: middle is hand wheel shaft 20, hand wheel shaft 20 is equipped with a handwheel 19 towards cage side, a main wheel 21 that passes is equipped with in the centre, opposite side is equipped with drg 22, the power-transfer clutch 24 parallel with hand wheel shaft 20 is equipped with on right sides in the manual unit 5, flower wheel 23 is housed on the input shaft of power-transfer clutch 24, gear cluster 25 is housed on the output shaft of power-transfer clutch 24, one end of gear cluster 25 is equipped with driving wheel 17, and the left side loading nut 6 of manual unit 5 has follower 16 above the nut 6, wherein, drg 22 is having stuck hand wheel shaft 20 under the electric situation, and power-transfer clutch 24 is unidirectional transmission, promptly can only be at the Clutch input shaft input torque, the drive output shaft rotates, and is reverse motionless;
When manually moving, described motor 10 brakings, screw mandrel 7 does not rotate, and makes car 10 liftings of fixing with nut 6 by manual unit 5 drive nuts 6;
During electric operation, described manual unit 5 is motionless, and motor 10 drives screw mandrels 7 and vertically rotate, the car 10 realization liftings that drive nut 6 and fix with it.
Described motor 5 fixed and arranged are at the top of hoistway or the bottom of hoistway.
Described car fag end assembly also comprises car fag end assembly 14, belt or chain or rope, counterweight fag end assembly 26, counterweight track adjusting wheel 27, car track adjusting wheel 28, wheel flutter 29, car fag end component mounting block 30, described car fag end assembly 14 can be in conjunction with the accompanying drawings 4 structure and the positions that are well understood to it.
Described gear cluster 25 is a pair of helical wheel, transmission direction can be revolved to turn 90 degrees.
Described manual unit 5 also comprises, the main biography between wheel 21 and the flower wheel 23 drives by belt or chain, described flower wheel 23 rotates the axle in the described power-transfer clutch 24 and drives described gear cluster 25 rotations, the driving wheel 17 that is installed on the gear cluster 25 is rotated, driving wheel 17 drives follower 16 by belt or chain and rotates, and follower 16 reaches synchronous rotation with nut 6 by adaptor union 18.
Described manual unit 5 also comprises a connector 18, when manual antikinesis, described nut 6 rotates synchronously by adaptor union 18 and follower 16, follower 16 passes through belt or chain and driving wheel 17 and rotates synchronously, driving wheel 17 rotates synchronously by the axle in gear cluster 25 and the power-transfer clutch 24, thereby nut 6 maintains static when guaranteeing electric operation.
During described electric operation, described power-transfer clutch 24 reverse transmissions, nut 6 rotates the axle rotation synchronously that causes power-transfer clutch 24 rotates flower wheel 23, follower 16 drives the main wheel 21 that passes by belt or chain and rotates, because drg 22 gets electric stuck hand wheel shaft 20, when being rotated, nut 6 can not cause the rotation of handwheel 19.
Described electric transmission is arranged in the top or the bottom of hoistway, and guide piece is positioned at back one side, but also single face is installed by wall.
Described car guide rail about 15 each at least one, and described car is led boots 13 and is arranged in the both sides of car 10 or respectively adorns two so that elevator guarantee during along car guide rail 15 up-and-down movements the car lifting steadily and reliable.
The location of described screw mandrel 7 also comprises: screw mandrel upper support seat 3, upper support frame 4, screw mandrel lower support seat 8, lower support frame 9.
The installation of above-mentioned motor transmission mechanism is: static relatively motor 1 and the coupler 2 and the upper support frame 4 that cooperate with it, screw mandrel 7 with the motor transmission mechanism binding, screw mandrel 7 is installed between screw mandrel upper support seat 3 and the screw mandrel lower support seat 8, and the secondary guide rail 12 of the main guide rail 15 of guiding car 10 and guiding counterweight 11, wherein: the setting accuracy that guarantees motor 1 by adjusting upper support frame 4; Adjusting by screw mandrel upper support seat 3 and screw mandrel lower support seat 8 guarantees that the squareness of screw mandrel 7 reaches and motor 1 concentricity of coupler 2.
Above-mentioned electric operation principle of work is: motor 1 drives coupler 2 and rotates, thereby drives the rotation of screw mandrel 7, because the screw mandrel transmission principle, screw mandrel 7 rotates, nut 6 maintains static, so screw mandrel 7 drives moving up and down of nut 6, thereby drives moving up and down of car 10.Further be interpreted as: follower 16 passes through belt or chain and driving wheel 17 and rotates synchronously, driving wheel 17 rotates synchronously by the axle in gear cluster 25 power-transfer clutchs 24, but because power-transfer clutch 24 is unidirectional transmission operations, thereby nut 6 maintains static when guaranteeing electric operation; Wherein, drg 22 is second pipe protections; when power-transfer clutch 24 lost efficacy; power-transfer clutch 24 has caused reverse transmission, and the output shaft of power-transfer clutch 24 drives input shaft and rotates synchronously, and flower wheel 23 is rotated; flower wheel 23 drives the main wheel 21 that passes by belt or chain and rotates; but when electric operation,, thereby nut 6 is maintained static because drg 22 gets electric stuck hand wheel shaft 20.
When manually moving, cut off the electricity supply, because motor 1 self has drg, stuck motor shaft, because motor 1, coupler 2, screw mandrel 7 threes rotate synchronously, so under the dead electricity situation, guarantee that screw mandrel 7 maintains static, shake handwheel 19 and rotate by the main wheel 21 that passes of hand wheel shaft 20 drives, the master passes wheel 21 and drives flower wheel 23 rotations by belt or chain, and the axle that flower wheel 23 drives in the power-transfer clutchs 24 rotates, thereby the rotation of driven gear group 25, thereby cause the rotation of the driving wheel 17 that is installed on the gear cluster 25, driving wheel 17 drives follower 16 by belt or chain and rotates, and follower 16 reaches with nut 6 by adaptor union 18 and rotates synchronously.Because screw mandrel 7 is fixing, according to the screw mandrel transmission principle, so nut 6 move up and down along screw mandrel 7, thereby drive moving up and down of car 10.
By top duplicate protection, nut 6 maintains static when guaranteeing electric operation, can not cause the rotation of handwheel 19 during electric operation and causes safety problem.
Reach the electronic and manual function that realizes manned and loading by said method.
The present invention only is described in detail with regard to a most preferred embodiment of the present invention; but can not be interpreted as restriction to other modes of the invention process; everyly further improve and similar or identical scheme on basis of the present invention, all being considered as is the scope that the present invention asks for protection.
Claims (10)
1. energy-saving environment-friendly double-power lift contains manually and electronic two kinds of operation scheme, and it comprises,
One leg is directly made elevator hoistways;
The car (10) of a manned or thing, described car (10) is fixed on a side of nut (6) for Backpack type, and the cross-sectional plane of car (10) and the cross-sectional plane of leg are consistent and can make car (10) lifting in leg;
One electric transmission comprises, motor (1), coupler (2), the screw mandrel (7) that can vertically rotate are relative static nut (6) with matching with screw mandrel, and described motor (1) be synchronous rotation with coupler (2) and screw mandrel (7) three;
A pair of refitting is put, and comprises that counterweight (11), counterweight guide rail (12), car lead boots (13), car guide rail (15);
One cover car fag end assembly (14), car fag end assembly (14) crouches and to put the top that is arranged in car (10), can make reduced down in thickness at the bottom of the sedan-chair to 30mm;
One manually installs (5), described manual unit (5) is fixed on the back of car (10) by manual unit adapter plate (31), manual unit (5) comprising: middle is hand wheel shaft (20), hand wheel shaft (20) is equipped with a handwheel (19) towards cage side, a main wheel (21) that passes is equipped with in the centre, opposite side is equipped with drg (22), the power-transfer clutch (24) parallel with hand wheel shaft (20) is equipped with on right side in the manual unit (5), flower wheel (23) is housed on the input shaft of power-transfer clutch (24), gear cluster (25) is housed on the output shaft of power-transfer clutch (24), one end of gear cluster (25) is equipped with driving wheel (17), the left side loading nut (6) of manual unit (5), follower (16) is arranged above the nut (6), and wherein, drg (22) is having stuck hand wheel shaft (20) under the electric situation, power-transfer clutch (24) is unidirectional transmission, promptly can only drive output shaft and rotate at the Clutch input shaft input torque, reverse motionless;
When manually moving, described motor (10) braking, screw mandrel (7) does not rotate, and makes and fixing car (10) lifting of nut (6) by manual unit (5) drive nut (6);
During electric operation, described manual unit (5) is motionless, and motor (10) drives the vertical rotation of screw mandrel (7), and drive nut (6) and fixing with it car (10) are realized lifting.
2. energy-saving environment-friendly double-power lift according to claim 1 is characterized in that: described motor (5) fixed and arranged is at the top of hoistway or the bottom of hoistway.
3. energy-saving environment-friendly double-power lift according to claim 1 is characterized in that: described car fag end assembly also comprises car fag end assembly (14), belt or chain or rope, counterweight fag end assembly (26), counterweight track adjusting wheel (27), car track adjusting wheel (28), wheel flutter (29), car fag end component mounting block (30).
4. energy-saving environment-friendly double-power lift according to claim 1 is characterized in that: described gear cluster (25) is a pair of helical wheel, transmission direction can be revolved to turn 90 degrees.
5. energy-saving environment-friendly double-power lift according to claim 1, it is characterized in that: described manual unit (5) also comprises, the main biography between wheel (21) and the flower wheel (23) is connected drive by belt or chain, described flower wheel (23) rotates the axle in the described power-transfer clutch (24) and drives described gear cluster (25) rotation, the driving wheel (17) that is installed on the gear cluster (25) is rotated, driving wheel (17) drives follower (16) and rotates, and follower (16) reaches by adaptor union (18) and the synchronous rotation of nut (6).
6. energy-saving environment-friendly double-power lift according to claim 1 or 5, it is characterized in that: described manual unit (5) also comprises a connector (18), when manual antikinesis, described nut (6) rotates synchronously by adaptor union (18) and follower (16), follower (16) is by belt or chain and driving wheel (17) rotation synchronously, driving wheel (17) rotates synchronously by the axle in gear cluster (25) and the power-transfer clutch (24), thereby nut (6) maintains static during the assurance electric operation.
7. energy-saving environment-friendly double-power lift according to claim 1, it is characterized in that: during described electric operation, the reverse transmission of described power-transfer clutch (24), nut (6) rotates the axle rotation synchronously that causes power-transfer clutch (24) rotates flower wheel (23), follower (16) drives the main wheel (21) that passes by belt or chain and rotates, because drg (22) gets electric stuck hand wheel shaft (20), when being rotated, nut (6) can not cause the rotation of handwheel (19).
8. energy-saving environment-friendly double-power lift according to claim 1 is characterized in that: described electric transmission is arranged in the top or the bottom of hoistway, and guide piece is positioned at back one side, but also single face is installed by wall.
9. energy-saving environment-friendly double-power lift according to claim 2 is characterized in that: about described car guide rail (15) each at least one, and described car is led the both sides that boots (13) are arranged in car (10) and is respectively adorned two.
10. energy-saving environment-friendly double-power lift according to claim 1 is characterized in that: the location of described screw mandrel (7) also comprises: screw mandrel upper support seat (3), upper support frame (4), screw mandrel lower support seat (8), lower support frame (9).
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| CN2010101058783A CN101792084B (en) | 2010-02-01 | 2010-02-01 | Energy-saving environment-friendly double-power lift |
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| CN2010101058783A CN101792084B (en) | 2010-02-01 | 2010-02-01 | Energy-saving environment-friendly double-power lift |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102249133A (en) * | 2011-06-07 | 2011-11-23 | 梁昌勇 | Screw rod elevator with counterweight |
| CN103420259A (en) * | 2012-05-23 | 2013-12-04 | 上银科技股份有限公司 | Screw lifting structure |
| CN103863925A (en) * | 2014-03-06 | 2014-06-18 | 金湘江 | Lead-screw multiplying and lifting system |
| CN105819310A (en) * | 2016-05-20 | 2016-08-03 | 陕西小溪机电科技有限公司 | Dual traction drive lift with manual self-rescue slow descent function |
| CN105883555A (en) * | 2016-06-12 | 2016-08-24 | 陕西小溪机电科技有限公司 | Double-dragged driving elevator with self-saving slow descending function |
| CN106006304A (en) * | 2016-07-19 | 2016-10-12 | 苏州福特美福电梯有限公司 | Screw rod drive type lift with annular handrail |
| CN106395577A (en) * | 2016-11-10 | 2017-02-15 | 山东建筑大学 | Dual-power screw-type elevator |
| CN107117547A (en) * | 2017-05-25 | 2017-09-01 | 杭州航验环境技术有限公司 | A kind of hoisting mechanism of shift-variable |
| CN110395640A (en) * | 2019-08-01 | 2019-11-01 | 上海三菱电梯有限公司 | A kind of home lift |
| CN112027844A (en) * | 2019-06-04 | 2020-12-04 | 青岛优创华信智能设备制造有限公司 | Screw elevator self-rescue mechanism |
| CN116142920A (en) * | 2023-02-27 | 2023-05-23 | 哈尔滨麻袋袜业有限公司 | Intelligent tooth-shaped chain ring ladder for automobile |
| CN119038354A (en) * | 2024-10-29 | 2024-11-29 | 中交第三航务工程局有限公司 | Lifting platform for welding maintenance of piling ship |
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2010
- 2010-02-01 CN CN2010101058783A patent/CN101792084B/en active Active
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102249133A (en) * | 2011-06-07 | 2011-11-23 | 梁昌勇 | Screw rod elevator with counterweight |
| CN103420259A (en) * | 2012-05-23 | 2013-12-04 | 上银科技股份有限公司 | Screw lifting structure |
| CN103420259B (en) * | 2012-05-23 | 2015-09-09 | 上银科技股份有限公司 | Screw lifting structure |
| CN103863925A (en) * | 2014-03-06 | 2014-06-18 | 金湘江 | Lead-screw multiplying and lifting system |
| CN105819310B (en) * | 2016-05-20 | 2018-03-27 | 陕西小溪机电科技有限公司 | A kind of double tracking-driven elevators with slow drop function of saving oneself manually |
| CN105819310A (en) * | 2016-05-20 | 2016-08-03 | 陕西小溪机电科技有限公司 | Dual traction drive lift with manual self-rescue slow descent function |
| CN105883555A (en) * | 2016-06-12 | 2016-08-24 | 陕西小溪机电科技有限公司 | Double-dragged driving elevator with self-saving slow descending function |
| CN106006304A (en) * | 2016-07-19 | 2016-10-12 | 苏州福特美福电梯有限公司 | Screw rod drive type lift with annular handrail |
| CN106395577A (en) * | 2016-11-10 | 2017-02-15 | 山东建筑大学 | Dual-power screw-type elevator |
| CN107117547A (en) * | 2017-05-25 | 2017-09-01 | 杭州航验环境技术有限公司 | A kind of hoisting mechanism of shift-variable |
| CN107117547B (en) * | 2017-05-25 | 2024-06-07 | 杭州航验环境技术有限公司 | Hoisting mechanism capable of shifting gears |
| CN112027844A (en) * | 2019-06-04 | 2020-12-04 | 青岛优创华信智能设备制造有限公司 | Screw elevator self-rescue mechanism |
| CN112027844B (en) * | 2019-06-04 | 2025-03-11 | 青岛优创华信智能设备制造有限公司 | A self-rescue mechanism for screw elevator |
| CN110395640A (en) * | 2019-08-01 | 2019-11-01 | 上海三菱电梯有限公司 | A kind of home lift |
| CN116142920A (en) * | 2023-02-27 | 2023-05-23 | 哈尔滨麻袋袜业有限公司 | Intelligent tooth-shaped chain ring ladder for automobile |
| CN119038354A (en) * | 2024-10-29 | 2024-11-29 | 中交第三航务工程局有限公司 | Lifting platform for welding maintenance of piling ship |
| CN119038354B (en) * | 2024-10-29 | 2025-04-11 | 中交第三航务工程局有限公司 | A lifting platform for welding and maintenance of pile-driving vessels |
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| Publication number | Publication date |
|---|---|
| CN101792084B (en) | 2012-01-18 |
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Address after: Hangzhou City, Zhejiang province Binjiang District 310052 shore road 1181 Patentee after: Unite Elevator Co., Ltd. Address before: Hangzhou City, Zhejiang province Binjiang District 310052 shore road 1181 Patentee before: Hangzhou Unite Elevator Co.,Ltd. |
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Address after: Hangzhou City, Zhejiang province Binjiang District 310052 shore road 1181 Patentee after: Xizi Unite Elevator Co., Ltd. Address before: Hangzhou City, Zhejiang province Binjiang District 310052 shore road 1181 Patentee before: Unite Elevator Co., Ltd. |
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| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 311305 Hangzhou, Ling'an Qingshan Lake Street science and technology Avenue, No. 2329 Patentee after: Xizi Elevator Technology Co. Ltd. Address before: Hangzhou City, Zhejiang province Binjiang District 310052 shore road 1181 Patentee before: Xizi Unite Elevator Co., Ltd. |