CN102680198A - Elevator buffer testing equipment - Google Patents

Elevator buffer testing equipment Download PDF

Info

Publication number
CN102680198A
CN102680198A CN2012101474129A CN201210147412A CN102680198A CN 102680198 A CN102680198 A CN 102680198A CN 2012101474129 A CN2012101474129 A CN 2012101474129A CN 201210147412 A CN201210147412 A CN 201210147412A CN 102680198 A CN102680198 A CN 102680198A
Authority
CN
China
Prior art keywords
frame
guide rail
counterweight
balancing weight
balance weight
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN2012101474129A
Other languages
Chinese (zh)
Other versions
CN102680198B (en
Inventor
邹家春
马新峰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hangzhou Huning Elevator Parts Co Ltd
Original Assignee
Hangzhou Huning Elevator Parts Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hangzhou Huning Elevator Parts Co Ltd filed Critical Hangzhou Huning Elevator Parts Co Ltd
Priority to CN201210147412.9A priority Critical patent/CN102680198B/en
Publication of CN102680198A publication Critical patent/CN102680198A/en
Application granted granted Critical
Publication of CN102680198B publication Critical patent/CN102680198B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Abstract

The invention discloses elevator buffer testing equipment, which comprises a frame, wherein a counterweight block tray is arranged on the frame, the counterweight block tray is used for superposing counterweight blocks, and each counterweight block is provided with a jack; an electric hoist is arranged on the frame, a steel cable is wound on the electric hoist, the extending end of the steel cable is connected with a separation hook, the separation hook hooks a load box body on the lower part, the separation hook can be separated from the load box body, and one side of the load box body, which faces one side of the counterweight blocks, is not closed; and a counterweight lifting motor is arranged on the frame, the counterweight lifting motor drives a lifting lead screw of a counterweight mechanism to rotate, the lifting lead screw of the counterweight mechanism propels the counterweight mechanism to ascend or descend through threads, the counterweight mechanism is provided with a counterweight block moving motor, the counterweight block moving motor drives a lead screw to rotate, the lead screw propels a guide rail to transversely move through threads, the lower part of the guide rail is opposite to the counterweight blocks, the guide rail is provided with counterweight block propelling pins, and the counterweight block propelling pins can be inserted into the jacks of the counterweight blocks, so that the guide rail transversely moves and the counterweight blocks can be filled in or moved out of the load box body.

Description

The buffer of elevator testing equipment
Technical field
The invention belongs to the elevator technology field, relate in particular to a kind of testing equipment of elevator safety parts, specifically is a kind of buffer of elevator testing equipment.
Background technology
Elevator is a kind of transportation equipment of VTOL (vertical take off and landing), and it is used to deliver passenger or goods, is the indispensable transportation equipment of high-rise.Bydraulic buffers is a kind of safety component that standard GB 7588 regulations must dispose, and promptly squats the end or when rushing to summit when the operation of elevator generation over travel, plays buffer action, reduces risk, and passenger, goods and lift facility itself are played a protective role.
According to national Specification, bydraulic buffers must regularly be done type approval test, and the mode of type approval test is to adopt the pouring weight of constant weight, from corresponding height free-falling, impact bydraulic buffers, and record weighs fast acceleration information in the impulse test overall process.Process of the test has following point:
A, test mass promptly impact the loading and unloading of the quality of pouring weight
The impact damper product has a suitable mass range, and according to national Specification, the bydraulic buffers type approval test must adopt the minimum mass and the biggest quality that are suitable for it to do the one-shot test respectively.Twice duration of test will be adjusted the quality of impacting pouring weight so.And different impact damper products, the scope of its suitable quality is also different.Therefore, in the bumper tests process, just need ceaselessly loading and unloading test pouring weight, to adjust its quality.
At present domestic and international each test mechanism, the method for loading and unloading test pouring weight still is total man worker or partly artificial mode, and labour intensity is big, efficient is low, recruitment is many, and more serious is to have security risk.
B, test mass promptly impact the metering of the quality of pouring weight
Two kinds of methods are arranged at present: the pouring weight of standard quality is adopted in (1), obtains test mass through the manual calculation method.There is the heavy inaccurate shortcoming of meter in the method.(2) use the electronic scale weighing.The method exists time-consuming consumption power and unhandy shortcoming.
Summary of the invention
For solving the above-mentioned technical matters that prior art exists, the invention discloses a kind of buffer of elevator testing equipment.
The present invention adopts following technical scheme: the buffer of elevator testing equipment, comprise frame, and the balancing weight pallet is installed on the frame, the balancing weight pallet is used to stack balancing weight, and described balancing weight has jack; Electric hoist is installed on the frame, and electric hoist coiling cable wire, the external part of cable wire connect and break off relations, and hook the load casing of below, and unhook can throw off the load casing, and the load casing does not seal towards balancing weight one side; The counterweight lifting motor is installed on the frame; The counterweight lifting motor drives the balance weight mechanism elevating screw and rotates, and the balance weight mechanism elevating screw advances balance weight mechanism to move upward or downward through screw thread, and balance weight mechanism is equipped with the balancing weight mobile motor; The balancing weight mobile motor drives a leading screw and rotates; Described leading screw advances through screw thread and makes the guide rail transverse movement, and over against described balancing weight, guide rail is provided with balancing weight and advances pin under the described guide rail; Balancing weight advances sells the jack that can insert said balancing weight, thereby the guide rail transverse movement can be packed balancing weight or mobile described load casing into.
Preferably; The two guide rail boots up and down that are on the same straight line respectively are equipped with in the both sides of said load casing; Tackle mutually therewith, the both sides of frame respectively fixedly mount a vertical load riser guide, and two guide rail boots of homonymy can slide up and down along the load riser guide of homonymy.
Preferably, the end of said cable wire connects described unhook through buffering crossbeam and electrometer treasure.
Preferably, the two ends of said buffering crossbeam respectively are equipped with the second guide rail boots, and the described second guide rail boots are snug fit at the load riser guide of said frame both sides.
Preferably, a bearing is installed in the bottom of said frame, and described electric hoist is installed on the bearing; Two groups of driving-chain shaft stools are installed at the top of frame, between every group of driving-chain shaft stool one pulley spindle are housed, pulley spindle fit on one pulley; Described cable wire is after the top of frame is extended and passed through two pulleys successively, and extend towards the frame below end again.
Preferably, said counterweight lifting motor drives the rotation of balance weight mechanism elevating screw through speed reduction unit.
Preferably; Described balance weight mechanism comprises a framework; The both sides of this framework respectively are equipped with the 3rd guide rail boots that are in up and down on the same straight line; Corresponding, frame is along vertically being equipped with two balance weight mechanism riser guides, and two the 3rd guide rail boots of homonymy can slide along the balance weight mechanism riser guide that is in homonymy.
Preferably, described guide rail is a line slideway, and slide respectively in its both sides is matched with a spill line slide rail, and the spill line slide rail of both sides is installed on described balance weight mechanism.
Buffer of elevator testing equipment of the present invention has the advantage of high automation, all need not artificial direct control for the loading and unloading of impacting pouring weight, metering etc., can accomplish through equipment operation.
Description of drawings
Fig. 1 is the side-looking structural drawing of a kind of embodiment.
Fig. 2 is the A-A cut-open view of Fig. 1.
Fig. 3 is the vertical view of Fig. 2.
Fig. 4 is the three-dimensional structure diagram of Fig. 1 embodiment.
Fig. 5 is the structural drawing of balance weight mechanism.
In the diagram, 1-frame, 2-load casing, 3-balance weight mechanism, 4-balancing weight pallet, 5-speed reduction unit, 6-servomotor (being the counterweight lifting motor), 7-electrometer treasure, 8-balancing weight, 9-leading screw, 10-bydraulic buffers backing plate, 11-impact damper, 12-unhook, 13-electric hoist, 14-motor beam, 15-motor mounting plate, 16-gin wheel, 17-driving-chain shaft stool, 18-cucurbit mount pin, 19-cable wire, 20-pulley spindle, 21-bearing, 22-guide rail boots, 23-guide rail boots, 24-load riser guide, 25-balance weight mechanism riser guide, 26-balancing weight mobile motor, 27-leading screw, 28-line slideway, 29-spill line slide rail, 30-balancing weight advance pin, 31-buffering crossbeam, 32-to lead boots.
Embodiment
Below in conjunction with accompanying drawing the preferred embodiment of the present invention is elaborated.
Referring to Fig. 1-5, in the present embodiment, frame 1 is a combined frame, and it is folded mutually up and down by three rectangular-shaped frameworks and forms through bolt is continuous.The framework of middle part and bottom also is welded with hound.A bearing 21 is installed in the bottom of frame 1, and bearing 21 is through mount pin 18 assembling electric hoists 13.Two groups of (totally four) driving-chain shaft stools 17 are installed at the top of frame 1, and every group of 17 of driving-chain shaft stool is equipped with a pulley spindle 20, pulley spindle 10 fit ons one pulley 16.Electric hoist 13 coiling cable wires 19; The outer end of cable wire 19 is after the top of frame 1 is extended and passed through two pulleys 16 successively; Extend towards frame 1 below the end, and this end connects buffering crossbeam 31, and the below of buffering crossbeam connects electrometer treasure 7; The below of electrometer treasure 7 is through the 12 connection load casings 2 that break off relations, and balancing weight 8 is used to pack in the load casing 2.The below of load casing 2 is used to impact damper to be tested 11 is installed apart from the installed surface certain distance of frame 1 here, and in the present embodiment, impact damper 11 is installed on the installed surface of frame 1 through bydraulic buffers backing plate 10.Electric hoist 13 operation drive load casings 2 (and inner balancing weight 8) move up and down.Unhook can be adopted prior art, as hooking through the driving of oil cylinder or throwing off the load casing.Behind the 12 disengagement load casings 2 that break off relations, load casing 2 (and inner balancing weight 8) drops downwards, and the impact damper 11 that aligns its below impacts, to test its performance.
The two guide rail boots 23 up and down that are on the same straight line respectively are equipped with in the both sides of load casing 2; Tackle mutually therewith; The both sides of frame 1 respectively fixedly mount a vertical load riser guide 24; Two guide rail boots 23 of every side can slide up and down along the guide rail 24 of homonymy, thereby make the motion of load casing 2 more steady.In addition, the two ends of buffering crossbeam 31 also respectively are equipped with guide rail boots 32, and these two guide rails boots 32 are snug fit at respectively on the guide rail 24 of frame both sides.Load casing 2 does not seal towards balance weight mechanism 3 one sides, supplies balancing weight 8 to carry out in it.
One motor mounting plate 15 is housed on the motor beam 14 on frame 1 top, is equipped with counterweight lifting motor 6 and speed reduction unit 5 on the motor mounting plate 15, the motor shaft of this motor 6 is through speed reduction unit 5 and balance weight mechanism elevating screw 9 interlocks; Leading screw 9 straight down; Its lower end is through the screw thread balance weight mechanism 3 that spins, and this balance weight mechanism 3 comprises an I shape framework, and the both sides of this framework respectively are equipped with the guide rail boots 22 of corresponding up and down (promptly being on the same straight line); Corresponding; Frame 1 is along vertically being equipped with two balance weight mechanism riser guides 25, and two guide rail boots 22 up and down of homonymy can slide up and down along the guide rail that is in homonymy 25, makes moving up and down steadily of balance weight mechanism 3.Leading screw 9 rotates under the driving of motor 6, and it moves balance weight mechanism 3 through screw propulsion again up or down, thereby adjusts the height of balance weight mechanism 3.
Balancing weight mobile motor 26 is equipped with in the framework bottom of balance weight mechanism 3; The motor shaft of this motor 26 and a leading screw 27 interlocks; This leading screw 27 and line slideway 28 spin through screw thread; Slide respectively in the both sides of line slideway 28 is matched with the framework bottom that a spill line slide rail 29, two line slide rails 29 are installed on balance weight mechanism 3.The below of line slideway 28 also is equipped with balancing weight and is advanced pin 30, and this advances pin 30 protruding downwards.The below that advances pin 30 is over against balancing weight pallet 4, and balancing weight pallet 4 is installed on the frame 1, and it is used to put polylith balancing weight 8, has and advance pin 30 corresponding jacks on the balancing weight 8.Under motor 26 drives; Drive leading screw 27 rotations, and then make line slideway 28 do transverse movement, in this process along line slide rail 29; Height through aforementioned balance weight mechanism 3 is regulated; Advance pin 30 to insert the jack of balancing weight 8, thereby balancing weight 8 and line slideway 28 are together moved, thereby realized its entering or shifted out the process of load casing 2.
One, loads balancing weight (state when loading first balancing weight)
1, the counterweight lifting motor drives the balance weight mechanism elevating screw is just changeing--balance weight mechanism is descending--until advancing pin to insert the jack of first (top layer) balancing weight;
2, balancing weight moves (propelling) motor is just changeing propelling, gets into the load casing until balancing weight;
3, the electric hoist running is descending--and advance pin to break away from balancing weight;
4, balancing weight moves (propelling) motor counter-rotating and returns.
First balancing weight loads and puts in place, repeats 1-4 then, to last piece balancing weight immigration load casing.
If will shift out the load casing to balancing weight, only need above-mentioned steps and action are being fallen to operate and can realized.
Two, impulse test: after counterweight finishes; The downward shock eliminator of load casing;--breaking off relations and open,----------it is descending to break off relations, and----it is up to break off relations--prepared impact next time to recording curve to hook the load casing, so back and forth in crane work in the shock eliminator test to discharge the load casing in the regulations testing requirements.
More than the preferred embodiments of the present invention have been done detailed description; As far as those of ordinary skill in the art; According to thought provided by the invention, the part that on above-mentioned embodiment, range of application, all can change, and these changes also should be regarded as protection scope of the present invention.

Claims (8)

1. the buffer of elevator testing equipment is characterized in that comprising frame, and the balancing weight pallet is installed on the frame, and the balancing weight pallet is used to stack balancing weight, and described balancing weight has jack; Electric hoist is installed on the frame, and electric hoist coiling cable wire, the external part of cable wire connect and break off relations, and hook the load casing of below, and unhook can throw off the load casing, and the load casing does not seal towards balancing weight one side; The counterweight lifting motor is installed on the frame; The counterweight lifting motor drives the balance weight mechanism elevating screw and rotates, and the balance weight mechanism elevating screw advances balance weight mechanism to move upward or downward through screw thread, and balance weight mechanism is equipped with the balancing weight mobile motor; The balancing weight mobile motor drives a leading screw and rotates; Described leading screw advances through screw thread and makes the guide rail transverse movement, and over against described balancing weight, guide rail is provided with balancing weight and advances pin under the described guide rail; Balancing weight advances sells the jack that can insert said balancing weight, thereby the guide rail transverse movement can be packed balancing weight or mobile described load casing into.
2. buffer of elevator testing equipment as claimed in claim 1; It is characterized in that: the two guide rail boots up and down that are on the same straight line respectively are equipped with in the both sides of said load casing; Tackle mutually therewith; The both sides of frame respectively fixedly mount a vertical load riser guide, and two guide rail boots of homonymy can slide up and down along the load riser guide of homonymy.
3. buffer of elevator testing equipment as claimed in claim 2 is characterized in that: the end of said cable wire connects described unhook through buffering crossbeam and electrometer treasure.
4. buffer of elevator testing equipment as claimed in claim 3 is characterized in that: the two ends of said buffering crossbeam respectively are equipped with the second guide rail boots, and the described second guide rail boots are snug fit at the load riser guide of said frame both sides.
5. like claim 1 or 2 or 4 described buffer of elevator testing equipments, it is characterized in that: a bearing is installed in the bottom of said frame, and described electric hoist is installed on the bearing; Two groups of driving-chain shaft stools are installed at the top of frame, between every group of driving-chain shaft stool one pulley spindle are housed, pulley spindle fit on one pulley; Described cable wire is after the top of frame is extended and passed through two pulleys successively, and extend towards the frame below end again.
6. buffer of elevator testing equipment as claimed in claim 1 is characterized in that: said counterweight lifting motor drives the balance weight mechanism elevating screw through speed reduction unit and rotates.
7. like claim 1 or 2 or 4 or 6 described buffer of elevator testing equipments; It is characterized in that: described balance weight mechanism comprises a framework; The both sides of this framework respectively are equipped with the 3rd guide rail boots that are in up and down on the same straight line; Corresponding, frame is along vertically being equipped with two balance weight mechanism riser guides, and two the 3rd guide rail boots of homonymy can slide along the balance weight mechanism riser guide that is in homonymy.
8. buffer of elevator testing equipment as claimed in claim 1 is characterized in that: described guide rail is a line slideway, and slide respectively in its both sides is matched with a spill line slide rail, and the spill line slide rail of both sides is installed on described balance weight mechanism.
CN201210147412.9A 2012-05-14 2012-05-14 Elevator buffer testing equipment Active CN102680198B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210147412.9A CN102680198B (en) 2012-05-14 2012-05-14 Elevator buffer testing equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210147412.9A CN102680198B (en) 2012-05-14 2012-05-14 Elevator buffer testing equipment

Publications (2)

Publication Number Publication Date
CN102680198A true CN102680198A (en) 2012-09-19
CN102680198B CN102680198B (en) 2015-01-28

Family

ID=46812465

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201210147412.9A Active CN102680198B (en) 2012-05-14 2012-05-14 Elevator buffer testing equipment

Country Status (1)

Country Link
CN (1) CN102680198B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103033332A (en) * 2012-12-14 2013-04-10 惠州Tcl移动通信有限公司 Device and implementation method of power-off maintenance automatic locking-releasing and lifting
CN103175708A (en) * 2013-04-11 2013-06-26 中国特种设备检测研究院 Elevator descending testing system
CN103196692A (en) * 2013-04-11 2013-07-10 中国特种设备检测研究院 Release gear used for elevator testing
CN103193126A (en) * 2013-04-11 2013-07-10 中国特种设备检测研究院 Elevator ascending test system
CN106629286A (en) * 2016-12-13 2017-05-10 上海交通大学 Falling testing tower
CN110207968A (en) * 2019-06-21 2019-09-06 安徽九纲机电有限公司 A kind of hydraulic buffer of elevator test tower assembly line

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6259831A (en) * 1985-09-10 1987-03-16 Hitachi Elevator Eng & Serv Co Ltd Resetting testing device for oil buffer
CN200995922Y (en) * 2006-12-26 2007-12-26 蒋燕青 Lower-rear machine room elevator
CN201133867Y (en) * 2007-12-04 2008-10-15 南车石家庄车辆有限公司 Buffer drop hammer tester
CN201364245Y (en) * 2009-03-13 2009-12-16 天津久荣车轮技术有限公司 Heavy-hammer weight adjusting device of wheel impact testing machine
CN202033204U (en) * 2011-03-15 2011-11-09 沈阳祺盛机械有限公司 Dynamic detection testing machine for buffer
CN202614492U (en) * 2012-05-14 2012-12-19 杭州沪宁电梯配件有限公司 Elevator buffer testing equipment

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6259831A (en) * 1985-09-10 1987-03-16 Hitachi Elevator Eng & Serv Co Ltd Resetting testing device for oil buffer
CN200995922Y (en) * 2006-12-26 2007-12-26 蒋燕青 Lower-rear machine room elevator
CN201133867Y (en) * 2007-12-04 2008-10-15 南车石家庄车辆有限公司 Buffer drop hammer tester
CN201364245Y (en) * 2009-03-13 2009-12-16 天津久荣车轮技术有限公司 Heavy-hammer weight adjusting device of wheel impact testing machine
CN202033204U (en) * 2011-03-15 2011-11-09 沈阳祺盛机械有限公司 Dynamic detection testing machine for buffer
CN202614492U (en) * 2012-05-14 2012-12-19 杭州沪宁电梯配件有限公司 Elevator buffer testing equipment

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103033332A (en) * 2012-12-14 2013-04-10 惠州Tcl移动通信有限公司 Device and implementation method of power-off maintenance automatic locking-releasing and lifting
CN103175708A (en) * 2013-04-11 2013-06-26 中国特种设备检测研究院 Elevator descending testing system
CN103196692A (en) * 2013-04-11 2013-07-10 中国特种设备检测研究院 Release gear used for elevator testing
CN103193126A (en) * 2013-04-11 2013-07-10 中国特种设备检测研究院 Elevator ascending test system
CN103175708B (en) * 2013-04-11 2015-06-03 中国特种设备检测研究院 Elevator descending testing system
CN103193126B (en) * 2013-04-11 2015-08-26 中国特种设备检测研究院 A kind of ascending for elevator pilot system
CN103196692B (en) * 2013-04-11 2015-09-16 中国特种设备检测研究院 A kind of releasing means of elevator test
CN106629286A (en) * 2016-12-13 2017-05-10 上海交通大学 Falling testing tower
CN106629286B (en) * 2016-12-13 2019-11-15 上海交通大学 It falls and tests tower
CN110207968A (en) * 2019-06-21 2019-09-06 安徽九纲机电有限公司 A kind of hydraulic buffer of elevator test tower assembly line

Also Published As

Publication number Publication date
CN102680198B (en) 2015-01-28

Similar Documents

Publication Publication Date Title
CN102680198B (en) Elevator buffer testing equipment
CN202614492U (en) Elevator buffer testing equipment
US9845227B2 (en) Mobile crane
CN102627205B (en) Elevator car and counterweight automatic balancing energy-saving device with auxiliary counterweight, and control system
CN207483269U (en) Elevator
CN102556814B (en) Intelligent compensation device for elongation quantity of cage carrying rope and intelligent compensation method thereof
CN202754754U (en) Material lifter
CN105366507A (en) Modification method of machine room-less (MRL) elevator and MRL elevator
CN102373821A (en) Automobile traction and elevating device
CN209396820U (en) A kind of anti-fall construction material lifting means
CN201228216Y (en) Stacking machine
CN105173978A (en) Refitting method of elevator without machine room and elevator without machine room
CN104386558B (en) Elevator structure
CN201713181U (en) Right-angle gate opening bag rack elevator
CN106938828B (en) Crane and hoisting mechanism thereof
CN104326383B (en) Crane and its moment self balancing device and method
CN203529673U (en) Elevator with balancing weights
CN103569813A (en) Automatic balancing energy-saving device for elevator car adopting assistant counterweight on counterweight side and counterweight and control system
CN105236249A (en) Elevator without machine room
CN105293278A (en) Electric block type double-rail and single-main-beam crane
CN202529666U (en) Energy-saving device for realizing autobalance between elevator car and counter weight by adopting subsidiary counter weight
CN204310635U (en) A kind of emergency staircase
CN105063370A (en) Submerged slag conveyor
CN101955109A (en) Right angle opening bag rack elevator
CN206720597U (en) A kind of electric single beam crane of anti-knotting

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee
CP01 Change in the name or title of a patent holder

Address after: 311121 Zhongtai Industrial Park, water tower village, Zhongtai Township, Yuhang District, Hangzhou, Zhejiang

Patentee after: HANGZHOU HUNING ELEVATOR PARTS CO., LTD.

Address before: 311121 Zhongtai Industrial Park, water tower village, Zhongtai Township, Yuhang District, Hangzhou, Zhejiang

Patentee before: Hangzhou Huning Elevator Fitting Co., Ltd.

C56 Change in the name or address of the patentee
CP02 Change in the address of a patent holder

Address after: Yuhang Thailand Street Tower Village in Hangzhou City, Zhejiang province 311121

Patentee after: HANGZHOU HUNING ELEVATOR PARTS CO., LTD.

Address before: 311121 Zhongtai Industrial Park, water tower village, Zhongtai Township, Yuhang District, Hangzhou, Zhejiang

Patentee before: HANGZHOU HUNING ELEVATOR PARTS CO., LTD.