CN107055288B - Door lock system of elevator hand-pull door - Google Patents
Door lock system of elevator hand-pull door Download PDFInfo
- Publication number
- CN107055288B CN107055288B CN201710340108.9A CN201710340108A CN107055288B CN 107055288 B CN107055288 B CN 107055288B CN 201710340108 A CN201710340108 A CN 201710340108A CN 107055288 B CN107055288 B CN 107055288B
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- China
- Prior art keywords
- door
- elevator
- door lock
- lock
- connecting rod
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
- B66B13/02—Door or gate operation
- B66B13/14—Control systems or devices
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B53/00—Operation or control of locks by mechanical transmissions, e.g. from a distance
- E05B53/003—Operation or control of locks by mechanical transmissions, e.g. from a distance flexible
- E05B53/005—Bowden
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B65/00—Locks or fastenings for special use
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Elevator Door Apparatuses (AREA)
Abstract
The invention relates to a door lock system of an elevator hand-pulling door, which comprises an elevator door, an elevator door frame, a door lock device, a door ball device, a pull rope and a door knife device. The lock mounting surface of the elevator door frame is provided with a door frame lock hole. The door lock device comprises a door lock connecting rod and a bolt connected with the door lock connecting rod. The gate ball device is installed outside the elevator door frame and comprises a gate ball connecting rod. One end of the pull rope is connected to the door lock connecting rod, and the other end of the pull rope is connected to the gate ball connecting rod. The door knife device is arranged on the elevator car, and can tightly press the door ball connecting rod when the elevator car reaches a floor, so as to drive the pull rope to tighten the door lock connecting rod, and the door lock connecting rod drives the lock tongue to retract into the door frame lock hole; the door knife device can leave the door ball connecting rod when the elevator car leaves the floor, the door ball connecting rod drives the pull rope to release the door lock connecting rod, and the door lock connecting rod drives the lock tongue to extend out of the lock hole of the door frame. The elevator hand-pull door lock system is simple in structure and good in reliability.
Description
Technical Field
The invention relates to an elevator hand-pulling door lock system.
Background
The door lock system of a general hand-pull door elevator comprises an elevator door frame and a door lock device installed in the elevator door frame, wherein a lock tongue of a floor A can retract into the elevator door frame when an elevator car reaches the floor A, and at the moment, the elevator door can be opened by pulling the elevator door by hands. When the elevator car leaves the floor A, the elevator door is in a closed state, at the moment, the lock tongue of the floor A can stretch out of the elevator door frame and be inserted into the lock hole of the elevator door, and at the moment, the elevator door cannot be opened.
The door lock system of a general hand-pull door elevator has a complex structure, the elevator is easy to break down, and when the elevator door is in an open state, the spring bolt extends out of the elevator door frame, so that the elevator door cannot be normally closed, and safety accidents are easy to happen.
Disclosure of Invention
The invention provides an elevator hand-pull door lock system with simple structure and good reliability.
An elevator hand door lock system comprising:
the elevator door is provided with an elevator door lock hole;
the elevator door frame is characterized in that the surface, opposite to the elevator door lock hole, of the elevator door frame is a lock mounting surface, and a door frame lock hole is formed in the lock mounting surface;
the door lock device is arranged in the elevator door frame and comprises a door lock connecting rod and a spring bolt connected with the door lock connecting rod, and the spring bolt can retract into or extend out of a door frame lock hole under the driving of the door lock connecting rod;
the door ball device is arranged outside the elevator door frame and comprises a door ball connecting rod;
one end of the pull rope is connected to the door lock connecting rod, and the other end of the pull rope is connected to the gate ball connecting rod;
the door knife device is arranged on the elevator car, and can tightly press the door ball connecting rod when the elevator car reaches a floor, so that the pull rope is driven to tighten the door lock connecting rod, and the door lock connecting rod drives the lock tongue to retract into the door frame lock hole; the door knife device can leave the door ball connecting rod when the elevator car leaves the floor, the door ball connecting rod drives the pull rope to release the door lock connecting rod, and the door lock connecting rod drives the lock tongue to extend out of the lock hole of the door frame.
Preferably, the door lock device includes a reset member for providing a force to the latch bolt toward the lock mounting surface.
Preferably, the reset member is a reset spring.
Preferably, the door lock device comprises a door lock loop switch and a feeler lever capable of moving along with the bolt, and the feeler lever can push the door lock loop switch to close the door lock loop switch when the bolt extends out of the door frame lock hole.
Preferably, the door lock device comprises a linkage sleeve fixed on the lock tongue, and also comprises an upper safety rod fixedly arranged on the door lock device, a lower safety rod arranged in the linkage sleeve, and a locking steel ball positioned between the upper safety rod and the lower safety rod; the linkage sleeve comprises a groove for placing a locking steel ball, the upper safety rod and the lower safety rod respectively comprise an outer section close to the elevator door and an inner section far away from the elevator door, the diameter of the outer section of the upper safety rod is larger than that of the inner section of the upper safety rod, and the diameter of the outer section of the lower safety rod is smaller than that of the inner section of the upper safety rod; when the elevator door is opened and the pull rope is in a loose state, the locking steel ball moves to a position between the outer section of the upper safety rod and the inner section of the lower safety rod along with the linkage sleeve in the direction of the lock mounting surface and is limited.
Preferably, a transition arc surface is arranged between the outer section of the upper safety rod and the inner section of the upper safety rod, and a transition arc surface is arranged between the outer section of the lower safety rod and the inner section of the lower safety rod.
Preferably, the end of the bolt facing the lock mounting surface is provided with a ramp.
Preferably, the gate ball connecting rod comprises a round wheel at the end of the gate ball connecting rod, and the gate knife device presses the round wheel when the elevator car reaches a floor and leaves the round wheel when the elevator car leaves the floor.
Preferably, the vane device comprises a vane drive plate and a vane drive mechanism capable of driving the vane drive plate to push the gate ball connecting rod when the elevator car arrives at a floor or to move away from the gate ball connecting rod when the elevator car leaves the floor.
Preferably, the gate ball device further comprises a limit bolt for limiting the gate ball connecting rod.
The elevator door lock is provided with a door lock device, a door ball device, a pull rope and a door knife device, wherein the door knife device can tightly press a door ball connecting rod when an elevator car reaches a floor, so that the pull rope is driven to tighten a door lock connecting rod, and the door lock connecting rod drives a lock tongue to retract into a door frame lock hole; the door knife device can leave the door ball connecting rod when the elevator car leaves the floor, the door ball connecting rod drives the pull rope to release the door lock connecting rod, and the door lock connecting rod drives the lock tongue to extend out of the lock hole of the door frame. The invention has simple structure and good reliability.
Drawings
Fig. 1 is a schematic view showing the overall construction of a door lock system for an elevator sliding door according to the present invention;
fig. 2 is a side view of the elevator hand door lock system of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 1;
FIG. 4 is a view showing a state in which a locking tongue of the door lock device of the present invention is retracted into a locking hole of a door frame;
FIG. 5 is a sectional view of the latch bolt of the door lock device of the present invention retracted into the latch hole of the door frame;
FIG. 6 is a state diagram of the corresponding gate ball device when the latch bolt is retracted into the gate frame keyhole according to the present invention;
FIG. 7 is a view showing a state in which a latch bolt of the door lock apparatus of the present invention is extended out of a latch hole of a door frame;
FIG. 8 is a sectional view of the locking bolt of the door lock apparatus of the present invention extended out of the locking hole of the door frame;
FIG. 9 is a state diagram of a gate ball device corresponding to the present invention when the latch bolt extends out of the lock hole of the door frame;
fig. 10 is a sectional view of the door lock device when the elevator door of the present invention is opened and the rope is in a loosened state.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1-3, the hand-operated elevator door lock system 100 of the present invention includes an elevator door (not shown), an elevator door frame 110, a door lock device 120, a door ball device 140, a pull rope 130, and a door knife device 150, wherein the elevator door has an elevator door lock hole (not shown). The surface of the elevator door frame 110 opposite to the elevator door lock hole is a lock mounting surface 112, and the lock mounting surface 112 is provided with a door frame lock hole 114. The door lock apparatus 120 is installed in the door frame 110 of the elevator, and the door lock apparatus 120 includes a door lock link 122 and a latch tongue 124 connected to the door lock link 122, and the latch tongue 124 can be retracted into or extended out of the door frame locking hole 114 by the driving of the door lock link 122. The ball unit 140 is installed outside the elevator door frame 110, and the ball unit 140 includes a ball link 142. One end of the pull cord 130 is connected to the door lock link 122 and the other end is connected to the gate ball link 142. The door knife device 150 is installed on the elevator car, and when the elevator car arrives at a floor, the door knife device 150 can press the door ball connecting rod 142 tightly, so that the pull rope 130 is driven to tighten the door lock connecting rod 122, and the door lock connecting rod 122 drives the lock tongue 124 to retract into the door frame lock hole 114; when the elevator car leaves the floor, the door knife device 150 can leave the door ball connecting rod 142, the door ball connecting rod 142 drives the pull rope 130 to release the door lock connecting rod 122, and the door lock connecting rod 122 drives the lock tongue 124 to extend out of the door frame lock hole 114. The door lock system 100 for the elevator sliding door has a simple structure and good reliability.
The door latch mechanism 120 includes a return member, preferably a return spring 126, for providing a force to the bolt 124 toward the latch mounting surface 112. The end of the locking tongue 124 facing the lock mounting surface 112 is an outer end and the end facing away from the lock mounting surface 112 is an inner end, and a return spring 126 is provided at the inner end of the locking tongue 124. When the elevator car leaves a floor, the door knife device 150 leaves the door ball connecting rod 142, the door ball connecting rod 142 drives the pull rope 130 to loosen the door lock connecting rod 122, at the moment, under the action of the reset spring 126, the lock tongue 124 moves towards the lock mounting surface 112, extends out of the door frame lock hole 114 to enter the elevator door lock hole, and locks the elevator door, so that the elevator door cannot be opened when the elevator car does not reach the floor, and potential safety hazards are eliminated.
The door lock device 120 includes a door lock loop switch 125 and a contact rod 123 capable of moving along with the locking tongue 124, when the locking tongue 124 extends out of the door frame locking hole 114, the contact rod 123 can push the door lock loop switch 125 to close the door lock loop switch 125, and after the door lock loop switch 125 is closed, an indication message "the elevator door is closed" is sent.
As shown in fig. 4, 5, 7, 8 and 10, the door lock device 120 includes a link sleeve 127 fixed on the latch bolt 124, the door lock device 120 further includes an upper safety bar 1281 fixedly installed on the door lock device 120, a lower safety bar 1282 installed in the link sleeve 127, and a locking steel ball 1283 located between the upper safety bar 1281 and the lower safety bar 1282; the linkage sleeve 127 comprises a groove 1273 in which a locking steel ball 1283 is placed, the upper safety rod 1281 and the lower safety rod 1282 respectively comprise an outer section close to the elevator door and an inner section far away from the elevator door, the diameter of the outer section of the upper safety rod 1281 is larger than that of the inner section of the upper safety rod 1281, and the diameter of the outer section of the lower safety rod 1282 is smaller than that of the inner section of the upper safety rod 1281; the lock mounting surface 112 is provided with a rod hole 116 for extending the lower safety rod 1282, when the elevator door is opened and the pull rope 130 is in a loose state, the locking steel ball 1283 moves to the position between the outer section of the upper safety rod 1281 and the inner section of the lower safety rod 1282 along with the linkage sleeve 127 towards the lock mounting surface 112 and is limited. A transition arc surface is arranged between the outer section of the upper safety bar 1281 and the inner section of the upper safety bar 1281, and a transition arc surface is arranged between the outer section of the lower safety bar 1282 and the inner section of the lower safety bar 1282. The advantage of setting up the steel ball 1283 that is locked lies in: when the elevator door is opened and the elevator is in failure, the pull rope 130 is loosened, the lock tongue extends out of the door frame lock hole 114 under the action of the return spring 126, the elevator door cannot be closed, and safety accidents occur. The direction of spring bolt 124 towards the elevator door is provided with inclined plane 1241, and the benefit of this inclined plane 1241 is: during the process of locking the locking tongue 124 by the locking steel ball 1283, the locking tongue 124 still extends out of the door frame locking hole 114 for a certain distance, and at this time, the elevator door can still be closed due to the inclined plane 1241 and then locked.
The gate ball link 142 includes a circular wheel 1421 at an end of the gate ball link 142, and the gate ball device 140 further includes a gate ball return spring 146 capable of returning the circular wheel 1421. The vane device 150 includes a vane driving plate 152 and a vane driving mechanism capable of driving the vane driving plate 152 to push the round wheel 1421 when the elevator car arrives at a floor or to move away from the round wheel 1421 when the elevator car leaves the floor. As shown in fig. 6, when the circular wheel 1421 is pushed by the door vane driving plate 152, the pulling rope 130 is pulled, and then the pulling rope 130 is driven to pull the door lock link 122, and the door lock link 122 drives the latch tongue 124 to retract into the door frame locking hole 114. As shown in fig. 9, after the door vane driving plate 152 leaves the circular wheel 1421, the circular wheel 1421 returns to the original position under the action of the door ball return spring 146, and at this time, the pulling rope 130 is released, the pulling rope 130 releases the door lock link 122, and the door lock link 122 drives the latch tongue 124 to extend out of the door frame lock hole 114. The gate ball device 140 further comprises a limiting bolt 144 for limiting the gate ball connecting rod 142, and the movement limit position of the gate ball connecting rod 142 can be controlled by adjusting the height of the limiting bolt 144, so that the tightness of the pull rope can be conveniently adjusted.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (9)
1. An elevator hand door lock system (100), comprising:
the elevator door is provided with an elevator door lock hole;
the elevator door frame (110), the surface of the elevator door frame (110) opposite to the elevator door lock hole is a lock mounting surface (112), and the lock mounting surface (112) is provided with a door frame lock hole (114);
the door lock device (120) is installed in an elevator door frame (110), the door lock device (120) comprises a door lock connecting rod (122) and a bolt (124) connected with the door lock connecting rod (122), and the bolt (124) can retract or extend out of a door frame lock hole (114) under the driving of the door lock connecting rod (122); the door lock device (120) comprises a door lock loop switch (125) and a contact rod (123) capable of moving along with a bolt (124), wherein the contact rod (123) can push the door lock loop switch (125) to close the door lock loop switch (125) when the bolt (124) extends out of a door frame lock hole (114);
a gate ball device (140) mounted outside an elevator door frame (110), the gate ball device (140) including a gate ball link (142);
the pull rope (130), one end of the said pull rope (130) is connected to the door lock tie rod (122), another end is connected to the gate ball tie rod (142);
the door knife device (150) is installed on the elevator car, and the door knife device (150) can press the door ball connecting rod (142) tightly when the elevator car reaches a floor, so that the pull rope (130) is driven to tighten the door lock connecting rod (122), and the door lock connecting rod (122) drives the lock tongue (124) to retract into the door frame lock hole (114); the door knife device (150) can leave the door ball connecting rod (142) when the elevator car leaves the floor, the door ball connecting rod (142) drives the pull rope (130) to release the door lock connecting rod (122), and the door lock connecting rod (122) drives the lock tongue (124) to extend out of the door frame lock hole (114).
2. The elevator hand door lock system according to claim 1, wherein the door lock device (120) includes a reset for providing a force to the latch bolt (124) toward the lock mounting surface (112).
3. The elevator hand door lock system according to claim 2, wherein the return member is a return spring (126).
4. The elevator door lock system of claim 1, wherein the door lock device (120) comprises a linking sleeve (127) fixed to the latch tongue (124), the door lock device (120) further comprising an upper safety bar (1281) fixedly mounted to the door lock device (120), a lower safety bar (1282) mounted in the linking sleeve (127), and a locking steel ball (1283) positioned between the upper safety bar (1281) and the lower safety bar (1282); the linkage sleeve (127) comprises a groove (1273) in which a locking steel ball (1283) is placed, the upper safety rod (1281) comprises an outer section close to the elevator door and an inner section far away from the elevator door, the lower safety rod (1282) comprises an outer section close to the elevator door and an inner section far away from the elevator door, the diameter of the outer section of the upper safety rod (1281) is larger than that of the inner section of the upper safety rod (1281), and the diameter of the outer section of the lower safety rod (1282) is smaller than that of the inner section of the upper safety rod (1281); the lock mounting surface (112) is provided with a rod hole (116) for the lower safety rod (1282) to extend out, when the elevator door is opened and the pull rope (130) is in a loose state, the locking steel ball (1283) moves to the position between the outer section of the upper safety rod (1281) and the inner section of the lower safety rod (1282) along with the linkage sleeve (127) towards the direction of the lock mounting surface (112) and is limited.
5. The elevator hand door lock system according to claim 4, wherein a transition arc surface is provided between the outer section of the upper safety lever (1281) and the inner section of the upper safety lever (1281), and a transition arc surface is provided between the outer section of the lower safety lever (1282) and the inner section of the lower safety lever (1282).
6. The elevator hand door lock system according to claim 4, wherein an end of the locking tongue (124) facing the lock mounting surface (112) is provided with a ramp (1241).
7. The elevator door lock system according to claim 1, wherein the door ball link (142) includes a round wheel (1421) at an end of the door ball link (142), the door vane device (150) pressing against the round wheel (1421) when the elevator car arrives at a floor and leaving the round wheel (1421) when the elevator car leaves the floor.
8. An elevator hand door lock system according to claim 1 or 7, characterized in that the vane arrangement (150) comprises a vane drive plate (152) and a vane drive mechanism capable of driving the vane drive plate (152) to push the ball link (142) when the elevator car arrives at a floor or away from the ball link (142) when the elevator car departs from the floor.
9. The elevator hand door lock system according to claim 7, wherein the gate ball device (140) further comprises a limit bolt (144) for limiting the gate ball link (142).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710340108.9A CN107055288B (en) | 2017-05-15 | 2017-05-15 | Door lock system of elevator hand-pull door |
| PCT/CN2018/085950 WO2018210157A1 (en) | 2017-05-15 | 2018-05-08 | Door locking system for use with manually operated elevator door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710340108.9A CN107055288B (en) | 2017-05-15 | 2017-05-15 | Door lock system of elevator hand-pull door |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107055288A CN107055288A (en) | 2017-08-18 |
| CN107055288B true CN107055288B (en) | 2020-04-17 |
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ID=59609300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710340108.9A Active CN107055288B (en) | 2017-05-15 | 2017-05-15 | Door lock system of elevator hand-pull door |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107055288B (en) |
| WO (1) | WO2018210157A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107055288B (en) * | 2017-05-15 | 2020-04-17 | 苏州天梭电梯有限公司 | Door lock system of elevator hand-pull door |
| CN110143512A (en) * | 2019-06-25 | 2019-08-20 | 苏州珀威智能科技有限公司 | A kind of elevator pulls door lock |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4483420A (en) * | 1982-07-01 | 1984-11-20 | Byrne Francis J | Elevator door interlocking apparatus |
| JP2009263083A (en) * | 2008-04-24 | 2009-11-12 | Nakamura Denki Seisakusho:Kk | Door lock switch device |
| CN101734536A (en) * | 2010-01-28 | 2010-06-16 | 允成机电科技(上海)有限公司 | Elevator door lock device of vertical sliding door |
| CN204369384U (en) * | 2015-01-07 | 2015-06-03 | 苏州多美适家用电梯有限公司 | Elevator door lock device |
| CN206798928U (en) * | 2017-05-15 | 2017-12-26 | 苏州天梭电梯有限公司 | Elevator pulls door lock system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107055288B (en) * | 2017-05-15 | 2020-04-17 | 苏州天梭电梯有限公司 | Door lock system of elevator hand-pull door |
-
2017
- 2017-05-15 CN CN201710340108.9A patent/CN107055288B/en active Active
-
2018
- 2018-05-08 WO PCT/CN2018/085950 patent/WO2018210157A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4483420A (en) * | 1982-07-01 | 1984-11-20 | Byrne Francis J | Elevator door interlocking apparatus |
| JP2009263083A (en) * | 2008-04-24 | 2009-11-12 | Nakamura Denki Seisakusho:Kk | Door lock switch device |
| CN101734536A (en) * | 2010-01-28 | 2010-06-16 | 允成机电科技(上海)有限公司 | Elevator door lock device of vertical sliding door |
| CN204369384U (en) * | 2015-01-07 | 2015-06-03 | 苏州多美适家用电梯有限公司 | Elevator door lock device |
| CN206798928U (en) * | 2017-05-15 | 2017-12-26 | 苏州天梭电梯有限公司 | Elevator pulls door lock system |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018210157A1 (en) | 2018-11-22 |
| CN107055288A (en) | 2017-08-18 |
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Effective date of registration: 20180625 Address after: 528400 room 1203, three poetry and painting street, Yong Jing garden, East District, Zhongshan, Guangdong. Applicant after: Wu Jiansheng Address before: 215011 Jinyan Road No. 8, Suzhou high tech Zone, Jiangsu Applicant before: Suzhou Tiansuo Elevator Co., Ltd. |
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Effective date of registration: 20180716 Address after: 215011 Jinyan Road No. 8, Suzhou high tech Zone, Jiangsu Applicant after: Suzhou Tiansuo Elevator Co., Ltd. Address before: 528400 room 1203, three poetry and painting street, Yong Jing garden, East District, Zhongshan, Guangdong. Applicant before: Wu Jiansheng |
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Address after: 215000 65 Hongxi Road, high tech Zone, Suzhou City, Jiangsu Province Patentee after: SUZHOU TRANS ELEVATOR Co.,Ltd. Address before: 215011 Jinyan Road No. 8, Suzhou high tech Zone, Jiangsu Patentee before: SUZHOU TRANS ELEVATOR Co.,Ltd. |