CN107640674B - Elevator mechanical stopping device and reset assembly thereof - Google Patents
Elevator mechanical stopping device and reset assembly thereof Download PDFInfo
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- CN107640674B CN107640674B CN201711098819.6A CN201711098819A CN107640674B CN 107640674 B CN107640674 B CN 107640674B CN 201711098819 A CN201711098819 A CN 201711098819A CN 107640674 B CN107640674 B CN 107640674B
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- 238000012423 maintenance Methods 0.000 claims abstract description 18
- 230000000903 blocking effect Effects 0.000 claims abstract description 12
- 230000002265 prevention Effects 0.000 claims 2
- 238000012856 packing Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The invention relates to a safety protection device of an elevator, in particular to a mechanical stopping device of the elevator and a reset assembly thereof. The elevator mechanical stopping device comprises a fixed seat and a supporting rod hinged on the fixed seat, and further comprises a reset component arranged on one side of the supporting rod, close to the hoistway entrance, the reset component comprises a switch support seat arranged in a hoistway and a reset rod detachably assembled on the switch support seat, the reset rod comprises an operation part used for driving the supporting rod to rotate to a stopping state and a plug connector used for being in plug connection with the switch support seat, and the plug connector and the switch support seat form a reset safety switch. When the safety protection device is used, the reset rod is taken down, the reset safety switch is disconnected, the support rod is driven to a blocking state through the operation part, and the safety protection switch is also disconnected and enters an overhaul state; after the maintenance is finished, the supporting rod is retracted, the safety protection switch is closed, the reset rod is put back to the switch support, and the elevator safety loop is connected. The operation is convenient, and the safety coefficient is high; simple structure, low manufacturing cost and space saving.
Description
Technical Field
The invention relates to a safety protection device of an elevator, in particular to a mechanical stopping device of the elevator and a reset assembly thereof.
Background
With the continuous development of economy, villa areas are more and more, and home elevators installed in villas are more and more based on resident demands. However, the elevator shafts in villas are mostly very narrow, the pit depth of the shafts is relatively shallow, and the pit maintenance is difficult. The system is very important for the life security of maintenance personnel in the maintenance process, and a mechanical stopping device is required to be arranged as auxiliary equipment to ensure the safety space when the life security of maintenance personnel cannot be ensured in the top layer and pit space of the home elevator according to the requirements of GB/T21739-2008 household elevator manufacturing and installation Specification.
Existing home elevator machinery blocking devices are typically of unitary construction. For example, chinese patent documents with application date 2012, 4 and 28 and application number 201220191942.9 disclose an elevator pit safety device, which comprises a fixing seat fixed on the pit, a support rod with one end hinged on the fixing seat, the support rod has a standing blocking state and a flat stowing state, a blocking structure matched with the support rod in the blocking state is arranged on the fixing seat, and an elastic piece for pressing the support rod to the blocking structure when standing is arranged between the fixing seat and the support rod. When the elevator needs to be overhauled, a person firstly enters the pit, then directly operates the supporting rod to enable the supporting rod to stand, the standing supporting rod triggers the safety protection switch to act, and the elevator is switched from a normal running state to an overhauling state. In the case of too small a hoistway, such a device is inconvenient to operate.
The patent document in China, with the application date of 2016, 12 and 27 and the application number of 201621448651.8, discloses a mechanical stopping device for a home elevator positioned outside a hoistway, which comprises a supporting rod arranged on a fixed seat in a pit, a locating frame positioned outside the hoistway and a rope sheave arranged on the locating frame, wherein the rope sheave is connected with the supporting rod through a traction rope, the supporting rod is erected or put down through the winding and unwinding of the traction rope by the rope sheave, a contact switch which is in contact with the supporting rod to form a safety loop is further arranged in the pit, and the supporting rod breaks away from the contact switch in the process of erecting to disconnect the safety loop of the elevator. The device overall structure is comparatively complicated, establishes the haulage rope between fixing base and the locating rack outside the well, occupies the well outer space, and the haulage rope overcoat is established the fag end, needs to set up the line board on the fixing base and guides the haulage rope, and the rope winding problem of knoing appears easily, influences the reliability in use. In addition, if the supporting rod and the contact switch are in fault, potential safety hazards still exist in the overhaul process after personnel enter the well, and the safety guarantee of the potential safety hazard is to be improved.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide the elevator mechanical stopping device which has the advantages of simple structure, space saving, convenient operation and capability of improving the operation safety coefficient, and also provides a reset assembly of the elevator mechanical stopping device.
In order to achieve the above object, the technical scheme of the mechanical stopping device for the elevator of the invention is as follows:
the utility model provides an elevator machinery prevents device, including being used for fixing the fixing base in the well and articulating the bracing piece on the fixing base, the bracing piece has the stop state of standing and keeping flat and packs up the state, is equipped with the safety protection switch who breaks off the safety circuit when the bracing piece is located the stop state on the fixing base, machinery prevents device still includes the reset assembly who establishes in the bracing piece be close to hall entrance one side, reset assembly including be used for installing the switch support in the well and the reset lever of removable assembly on the switch support, the reset lever is including the operating portion that is used for driving the bracing piece to rotate to the stop state and be used for with switch support grafting complex plug connector, the plug connector forms the reset safety switch who is used for switching on the safety circuit after inserting with the switch support.
The operation part is fixed at one end of the reset rod and is in a hook-shaped folded plate structure.
The hook bottom of the hook-shaped folded plate is provided with a hanging hole for fixing the reset rod on the wall of the well.
The plug connector is a contact pin, and the switch support comprises a socket corresponding to the contact pin and a mounting seat arranged on the wall of the well.
The contact pin is arranged in parallel with the reset rod.
The support rod is hinged on the fixed seat through a hinge shaft, a rotating wheel which rotates synchronously with the support rod is arranged on the hinge shaft, a notch is arranged on the rotating wheel, and when the support rod rotates to a blocking state, the notch on the rotating wheel is aligned with the safety protection switch, so that the switch automatically resets, and a safety loop is disconnected.
The fixing seat is provided with a stop structure, the stop structure is provided with a slot for the support rod to rotate and enter, the slot bottom of the slot is in stop fit with the standing support rod, and an elastic piece which enables the support rod to press against the stop structure when standing is arranged between the fixing seat and the support rod.
The technical scheme of the reset component of the mechanical stop device of the elevator is as follows:
the reset component of the mechanical stopping device of the elevator comprises a switch support seat and a reset rod, wherein the switch support seat is arranged in a hoistway, the reset rod is detachably assembled on the switch support seat, the reset rod comprises an operation part for driving a support rod to reach a stopping state and a plug connector for being in plug connection with the switch support seat, and a reset safety switch for switching on a safety loop is formed after the plug connector is plugged with the switch support seat.
The operation part is fixed at one end of the reset rod, the operation part is of a hook-shaped folded plate structure, and a hanging hole for fixing the reset rod on the wall of the well is formed in the hook bottom of the hook-shaped folded plate.
The plug connector is a contact pin, the switch support comprises a socket corresponding to the contact pin and a mounting seat used for being mounted on the wall of the well, and the contact pin and the reset rod are arranged in parallel.
Due to the implementation of the technical scheme, compared with the prior art, the invention has the following technical effects:
when the mechanical stopping device for the elevator is used, the reset rod is taken down from the switch support, the plug connector on the reset rod is separated from the switch support, so that the reset safety switch is disconnected, then the reset rod can be held by hand, the support rod is driven to a standing stopping state through the operation part on the reset rod, at the moment, the safety protection switch is also disconnected, and thus, after the two switches act, the elevator enters a safer maintenance state; after the maintenance is finished, the supporting rod is retracted, the safety protection switch is closed, the maintenance personnel leave, the reset rod is put back to the switch support, the reset safety switch is closed, the elevator safety loop is connected, and the elevator is in a normal running state. When the reset rod is taken and put, a person can stand at the hoistway entrance outside the hoistway to operate, and corresponding requirements in GB/T21739-2008 can be met. Compared with the prior art, the double-switch protection is adopted, the reset safety switch is opened firstly and closed secondly, and the safety coefficient during maintenance is greatly increased. The device is positioned at the inner side of the well, has simple integral structure, low manufacturing cost and convenient installation, and saves space.
Further, the operating part on the reset rod adopts a hook-shaped folded plate, is applicable to the rod-shaped appearance of the support rod, and has simple structure and convenient processing.
Further, the hanging hole is formed in the hook bottom of the recess in the operation part, so that the structural design of the reset rod is simple, and the hanging and fixing of the reset rod after the plug connector is matched with the switch support are easy to realize.
Drawings
Fig. 1 is a schematic view of an elevator mechanical stopping device provided by an embodiment of the present invention in a normal operation state of an elevator;
FIG. 2 is a schematic view of the support assembly of FIG. 1;
FIG. 3 is a schematic view of another view of the support assembly of FIG. 1;
FIG. 4 is a schematic diagram of the reset assembly of FIG. 1;
FIG. 5 is a schematic diagram of the reset safety switch of the reset assembly of FIG. 4 in a disengaged state;
fig. 6 is a schematic view of an elevator mechanical stopping device during operation;
fig. 7 is a schematic view of an elevator mechanical stopping device when the elevator is in a service condition.
Detailed Description
The technical scheme of the invention is described in detail through specific examples.
As shown in fig. 1, the mechanical stopping device for the elevator comprises a resetting component 1 and a supporting component, wherein the supporting component comprises a supporting rod 2 and a fixing seat 3, one end of the supporting rod 2 is hinged on the fixing seat 3 through a hinge, the supporting rod 2 is in a standing stopping state and a flat folding state, and the other end of the supporting rod 2 is a supporting end for supporting a car.
As shown in fig. 2 and 3, the hinge shaft on the support rod 2 is horizontally arranged, the end part of the hinge shaft is provided with a rotating wheel 7 in a rotation stopping way, the rotating wheel 7 synchronously rotates in the process that the support rod 2 rotates around the axis of the hinge shaft, an inward concave notch is arranged on the rotating wheel 7, the fixed seat 3 is also provided with a safety protection switch 4, and the safety protection switch 4 is a UPS switch capable of automatically resetting. When the support rod 2 rotates to a blocking state, the notch on the rotating wheel 7 just aims at the UPS switch to be opened, so that the switch action is automatically reset, and the safety loop is disconnected. When the support rod 2 is in the retracted state, the rotating wheel 7 presses the safety protection switch to complete the circuit. The fixed seat 3 is provided with a stop structure 5, the stop structure 5 is a flat plate horizontally and fixedly arranged at the top of the fixed seat 3, the stop structure 5 is provided with a slot for the support rod 2 to rotate and enter, and the slot bottom of the slot is in stop fit with the vertically placed support rod 2. An elastic piece 6 is arranged between the support rod 2 and the fixed seat 3, the elastic piece 6 is an extension spring, the extension spring and the stop structure are positioned on the same side of the support rod 2, one end of the extension spring is fixed near a hinge shaft on the support rod 2, the other end of the extension spring is fixed on the fixed seat 3, and the support rod can be stably placed under the action of the elastic piece and the stop structure. The fixing seat 3 comprises a bottom plate and two parallel vertical plates vertically fixed on the bottom plate, the bottom plate is provided with a mounting hole, and the fixing seat 3 is fixed on the bottom surface of the pit 9 in the well through a expansion bolt penetrating through the mounting hole.
As shown in fig. 4 and 5, the reset assembly 1 comprises a reset rod 11 and a switch support 15 which are detachably assembled together, an operation part 12 is arranged at the upper end of the reset rod 11, the operation part 12 is an L-shaped hook-shaped folded plate, a support rod can be hooked to drive the operation part to rotate, a hanging hole is formed in the bottom of the hook, the hanging hole is a calabash-shaped hole with a small upper part and a large lower part, the reset rod is hung and fixed on a side wall of a pit of a hoistway through the hanging hole, a contact pin 13 is arranged at the other end of the reset rod 11, and the contact pin 13 is arranged in parallel with the reset rod 11. The switch support 15 comprises a socket 16 and a mounting seat mounted on the inner side wall of the hoistway, and the mounting seat is fixed on the side wall of the pit through a expansion bolt. The reset rod 11 is in plug-in connection with a socket on the switch support 15 through a contact pin to form a reset safety switch connected into a safety loop. The hanging position of the reset rod 11 can ensure that the contact pin at the lower end is inserted into the socket of the switch support. The reset assembly 1 is provided on the side of the support bar within the hoistway near the hoistway entrance 10, i.e., at a position between the support bar and the hoistway entrance, and is operable by a person standing outside the hoistway.
As shown in fig. 6 and 7, when the elevator needs to enter the pit for maintenance, a maintenance person stands at the hoistway entrance and takes down the reset lever from the switch support, so that the reset safety switch is automatically disconnected, the elevator safety loop is disconnected, and the elevator cannot act. Then the reset rod is used for operating the support rod, so that the support rod is in a standing stopping state, the safety protection switch of the support rod acts, and the elevator is in an overhauling state at the moment, namely, after the safety protection switch and the reset safety switch act completely, the elevator is in the overhauling state.
After maintenance is finished, the supporting rod can be manually reset to a retracted state, the elevator is still in a maintenance state, after a maintenance person leaves the hoistway safely, the reset rod is put back to the initial position on the switch support, as shown in fig. 1, at the moment, the safety protection switch and the reset safety switch are all in a closed and on state, the elevator safety loop is on, and the elevator is in a normal running state.
In this embodiment, the mechanical stop means is a lower mechanical stop means provided in the pit. In other embodiments, the mechanical stop device described above may be provided on the roof of the car or the roof of the hoistway in a suitable size to be used as the upper mechanical stop device.
In other embodiments, the safety protection switch may also adopt a UKS switch or other reset switches, and the corresponding rotating wheel may also be replaced by a switch baffle or a cam, so as to ensure that the switch turns off the safety circuit when the support rod is in a blocking state.
In other embodiments, the operation portion of the reset lever may further adopt a U-shaped groove or a fork-shaped structure, so that a person holds the reset lever to drive the support lever to rotate to reach a blocking state. Hanging holes on the reset rod can be omitted, the reset rod can be directly fixed through the switch support under the condition that the strength of the inserting position is enough, and fixing buckles or other fixing structures can be arranged on the wall of a well.
In other embodiments, the plug connector on the reset rod can also adopt other contact structures, or the plug connector is a socket with a jack, and a corresponding plug is arranged on the switch support.
In the embodiment of the reset assembly of the elevator mechanical stop device of the present invention, the structure of the reset assembly is the same as that of the embodiment of the elevator mechanical stop device described above, and will not be described herein.
The present invention is described in detail above, but the scope of the present invention is not limited to the above embodiments. All equivalent changes or modifications made in accordance with the spirit of the present invention should be construed to be included in the scope of the present invention.
Claims (10)
1. The utility model provides an elevator machinery prevents device, is including being used for fixing the fixing base in the well and articulating the bracing piece on the fixing base, and the bracing piece has the prevention state of standing and the packing up state of keeping flat, is equipped with the safety protection switch who breaks off safety circuit when the bracing piece is located the prevention state on the fixing base, its characterized in that: the mechanical stopping device also comprises a reset component arranged on one side of the supporting rod, which is close to the hoistway entrance, wherein the reset component comprises a switch support seat and a reset rod, the switch support seat is arranged in the hoistway, the reset rod is detachably assembled on the switch support seat, the reset rod comprises an operation part and a plug connector, the operation part is used for driving the supporting rod to rotate to a stopping state, the plug connector is used for being in plug fit with the switch support seat, and a reset safety switch is formed after the plug connector is in plug fit with the switch support seat and is used for switching on a safety loop; when the elevator needs to enter the pit for maintenance, a maintenance personnel takes down the reset rod from the switch support, the reset safety switch is automatically disconnected, and the elevator safety loop is disconnected; after the overhaul is finished, after an overhaul worker safely leaves the hoistway, the reset rod is put back on the switch support, and the elevator safety loop is connected.
2. The elevator mechanical stopping device according to claim 1, characterized in that: the operation part is fixed at one end of the reset rod and is in a hook-shaped folded plate structure.
3. The elevator mechanical stopping device according to claim 2, characterized in that: the hook bottom of the hook-shaped folded plate is provided with a hanging hole for fixing the reset rod on the wall of the well.
4. An elevator mechanical stopping device according to claim 1 or 2 or 3, characterized in that: the plug connector is a contact pin, and the switch support comprises a socket corresponding to the contact pin and a mounting seat arranged on the wall of the well.
5. The elevator mechanical stopping device of claim 4, wherein: the contact pin is arranged in parallel with the reset rod.
6. The elevator mechanical stopping device according to claim 1, characterized in that: the support rod is hinged on the fixed seat through a hinge shaft, a rotating wheel which rotates synchronously with the support rod is arranged on the hinge shaft, a notch is arranged on the rotating wheel, and when the support rod rotates to a blocking state, the notch on the rotating wheel is aligned with the safety protection switch, so that the switch automatically resets, and a safety loop is disconnected.
7. Elevator machinery preventing device according to claim 1 or 6, characterized in that: the fixing seat is provided with a stop structure, the stop structure is provided with a slot for the support rod to rotate and enter, the slot bottom of the slot is in stop fit with the standing support rod, and an elastic piece which enables the support rod to press against the stop structure when standing is arranged between the fixing seat and the support rod.
8. A reset assembly for an elevator mechanical stop device, characterized by: the reset rod comprises an operation part for driving the support rod to reach a blocking state and a plug connector for plug-in matching with the switch support, and the plug connector and the switch support form a reset safety switch for connecting a safety loop after plug-in matching; when the elevator needs to enter the pit for maintenance, a maintenance personnel takes down the reset rod from the switch support, the reset safety switch is automatically disconnected, and the elevator safety loop is disconnected; after the overhaul is finished, after an overhaul worker safely leaves the hoistway, the reset rod is put back on the switch support, and the elevator safety loop is connected.
9. The reset assembly of claim 8 wherein: the operation part is fixed at one end of the reset rod, the operation part is of a hook-shaped folded plate structure, and a hanging hole for fixing the reset rod on the wall of the well is formed in the hook bottom of the hook-shaped folded plate.
10. The reset assembly of claim 8 or 9, wherein: the plug connector is a contact pin, the switch support comprises a socket corresponding to the contact pin and a mounting seat used for being mounted on the wall of the well, and the contact pin and the reset rod are arranged in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711098819.6A CN107640674B (en) | 2017-11-09 | 2017-11-09 | Elevator mechanical stopping device and reset assembly thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711098819.6A CN107640674B (en) | 2017-11-09 | 2017-11-09 | Elevator mechanical stopping device and reset assembly thereof |
Publications (2)
| Publication Number | Publication Date |
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| CN107640674A CN107640674A (en) | 2018-01-30 |
| CN107640674B true CN107640674B (en) | 2024-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711098819.6A Active CN107640674B (en) | 2017-11-09 | 2017-11-09 | Elevator mechanical stopping device and reset assembly thereof |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109279471B (en) * | 2018-11-23 | 2023-10-13 | 西继迅达电梯有限公司 | Integral upper beam with mechanical stopping device |
| CN110054047A (en) * | 2019-04-16 | 2019-07-26 | 快意电梯股份有限公司 | Elevator only stop device |
| CN115196453B (en) * | 2021-04-09 | 2024-08-27 | 苏州珀威智能科技有限公司 | Elevator mechanical blocking device and use method thereof |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101061051A (en) * | 2004-05-05 | 2007-10-24 | 奥蒂斯电梯公司 | Safety device for operator protection in low-height shaft bottom end elevators and elevator equipped therewith |
| CN201825610U (en) * | 2010-04-15 | 2011-05-11 | 上海三菱电梯有限公司 | Device for realizing the safety in the maintenance space of the hoistway bottom of shallow pit elevator |
| CN102216188A (en) * | 2008-10-06 | 2011-10-12 | 通力股份公司 | Elevator arrangement |
| CN202558401U (en) * | 2012-04-28 | 2012-11-28 | 西继迅达（许昌）电梯有限公司 | Elevator pit safety protection device |
| CN205602901U (en) * | 2016-04-29 | 2016-09-28 | 西继迅达（许昌）电梯有限公司 | Domestic terraced pit prevents device with machinery |
| CN106494976A (en) * | 2015-09-07 | 2017-03-15 | 广东富本电梯有限公司 | A kind of hoistway door door lock short-circuit protection |
| CN106892309A (en) * | 2017-03-08 | 2017-06-27 | 浙江巨人控股有限公司 | Device is prevented under a kind of home lift |
| CN206288812U (en) * | 2016-12-27 | 2017-06-30 | 克莱斯电梯（中国）有限公司 | A kind of home elevator mechanical stopping device outside hoistway |
| CN207566643U (en) * | 2017-11-09 | 2018-07-03 | 西继迅达（许昌）电梯有限公司 | A kind of elevator mechanical stopping device and its reset assembly |
-
2017
- 2017-11-09 CN CN201711098819.6A patent/CN107640674B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101061051A (en) * | 2004-05-05 | 2007-10-24 | 奥蒂斯电梯公司 | Safety device for operator protection in low-height shaft bottom end elevators and elevator equipped therewith |
| CN102216188A (en) * | 2008-10-06 | 2011-10-12 | 通力股份公司 | Elevator arrangement |
| CN201825610U (en) * | 2010-04-15 | 2011-05-11 | 上海三菱电梯有限公司 | Device for realizing the safety in the maintenance space of the hoistway bottom of shallow pit elevator |
| CN202558401U (en) * | 2012-04-28 | 2012-11-28 | 西继迅达（许昌）电梯有限公司 | Elevator pit safety protection device |
| CN106494976A (en) * | 2015-09-07 | 2017-03-15 | 广东富本电梯有限公司 | A kind of hoistway door door lock short-circuit protection |
| CN205602901U (en) * | 2016-04-29 | 2016-09-28 | 西继迅达（许昌）电梯有限公司 | Domestic terraced pit prevents device with machinery |
| CN206288812U (en) * | 2016-12-27 | 2017-06-30 | 克莱斯电梯（中国）有限公司 | A kind of home elevator mechanical stopping device outside hoistway |
| CN106892309A (en) * | 2017-03-08 | 2017-06-27 | 浙江巨人控股有限公司 | Device is prevented under a kind of home lift |
| CN207566643U (en) * | 2017-11-09 | 2018-07-03 | 西继迅达（许昌）电梯有限公司 | A kind of elevator mechanical stopping device and its reset assembly |
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| CN107640674A (en) | 2018-01-30 |
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Address after: 461000 south section of Yanan Road, Xuchang economic and Technological Development Zone, Henan Applicant after: Xiji Xunda Elevator Co.,Ltd. Address before: 461000 south section of Yanan Road, Xuchang economic and Technological Development Zone, Henan Applicant before: XJ SCHINDLER (XUCHANG) ELEVATOR Co.,Ltd. |
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