CN2908442Y - Domestic elevator without machine room - Google Patents

Domestic elevator without machine room Download PDF

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Publication number
CN2908442Y
CN2908442Y CN 200520133407 CN200520133407U CN2908442Y CN 2908442 Y CN2908442 Y CN 2908442Y CN 200520133407 CN200520133407 CN 200520133407 CN 200520133407 U CN200520133407 U CN 200520133407U CN 2908442 Y CN2908442 Y CN 2908442Y
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CN
China
Prior art keywords
car
suspension bracket
machine room
motor
home lift
Prior art date
Application number
CN 200520133407
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Chinese (zh)
Inventor
黄缘和
黎伟雄
Original Assignee
安尔佳电梯(香港)有限公司
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Publication date
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Priority to CN 200520133407 priority Critical patent/CN2908442Y/en
Application granted granted Critical
Publication of CN2908442Y publication Critical patent/CN2908442Y/en

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Abstract

The utility model provides a kind of domestic elevated without the machine room, including a emergency self-help and release device; the device includes an emergency circuit, a clutch with the electromechanical control, a self-help motor to drive the clutch and storage batteries providing the electricity for the motor; therein, the clutch is arranged on one side of the main motor; the self-help motor is arranged on the upper part of the main motor; the output end is embedded with a steel rope through the output end of the main motor; when the elevator has the electricity failure, the emergency circuit is started, and the clutch is opened; then the storage batteries begin to provide the electricity for the self-help motor, and drives the self-help to rotate in a single direction; thus the steel rope is released; the elevator falls down to the floor nearest to the first floor or the first floor because of the dead weight or under the control; the passengers are released from the elevator car. The use of the emergency self-help and release device results in the good safety performance, good maintenance performance and good operating performance of the elevator; because of the design without the counterweight and the machine room; the installation of the whole machine is convenient; the utility model is suitable for the indoor and outdoor installation of various houses and the refinement of the old houses.

Description

A kind of no machine room home lift
Technical field
The utility model relates to elevator, is specifically related to a kind of no machine room home lift.
Background technology
Home lift is meant and is installed in the private past home telephone ladder of single household type that oneself uses for many years in American-European continent.Elevator is as vertical manned cargo-carrying instrument, and oneself has cooresponding history, and oneself becomes the building inalienable part.Along with the requirement of architectural design, the technology of elevator also has new development.Elevator is as a kind of modernized transportation means, be to use various assemblies integration such as modern advanced electronics technology and cooperation motor to form, oneself has surmounted the requirement of other electronic product to people to its safety, practicality, traveling comfort and aesthetic appearance, along with economic development and living standard improve, people also day by day add private demand and requirement toward the home telephone ladder; In order to solve building roof aesthetic problem, no machine room home lift arises at the historic moment.At present, elevator industry has all successively been released the no machine room home lift of different types both at home and abroad, but existing home lift, generally be equipped with car and counterweight, make general small-sized elevator consumption of current big, take up room more, need the minimum 1.3M of the well degree of depth (rice), the minimum 3.2M of headroom height (rice), very passive when architectural design and installation, and traditional hydraulic pressure home lift is also being deposited problems such as not environmental protection, leakage of oil, noise and hoisting depth restriction.In addition, for make things convenient for the disabled can use simultaneously elevator, according to international standard ISO/FDIS 9386-1 and European standard prEN 81-33,, the running velocity of elevator can not surpass 0.15m/s, load-carrying can not be less than 250KG, though domesticly do not conclude and carry out related standards at present as yet, but should contrast above-mentioned standard, and the home lift of domestic prior art can not satisfy the requirement of above-mentioned standard.
The utility model content
The purpose of this utility model is to provide a kind of employing not have the design of machine room formula, counterweightless, safety is good, maintainability is better and drive ability is good, load-carrying 300Kg, that single phase A.C. 220V power supply, power of motor require is low, very power saving, meet modern environmental demands, adopts around the heavy hanging of cable, safety and energy-saving that noise is little and does not have the machine room home lift.
Technical scheme provided by the utility model is: a kind of no machine room home lift comprises vertical hoistway, car, is used for fixing car suspension bracket, car guide rail, car guide rail top support frame, carrying means, the control box of car and is used for the steel rope of traction car; Described carrying means is arranged on the described car guide rail top support frame, comprises main motor, velocity limiter, wiring traction sheave, brake equipment; The fag end and the car suspension bracket of one end of described steel rope are fastenedly connected, other end fag end then is anchored on the wiring traction sheave, it is characterized in that: it comprises that also an emergency self-saving puts people's device, and this device comprises emergency circuit, the power-transfer clutch of saving oneself, be used for driving the motor and be used for storage battery to this motor power supply of saving oneself of this power-transfer clutch; Wherein said power-transfer clutch is arranged on the side on the main motor, and the motor of saving oneself is arranged on main motor top, and its mouth is nested with the steel cable by main motor output end; When described elevator takes place to have a power failure, the emergency circuit starting, the described power-transfer clutch of saving oneself is closed, connect storage battery to the motor power supply of saving oneself, and drive this motor of saving oneself and make unidirectional rotation and then steel rope is discharged, elevator is stopped the back, is emitted the passenger in the car near the one deck or the first floor because of deadweight or controlled dropping to.
Described velocity limiter is to be fixed on the car guide rail top support frame, is to rotate with vertical mode, and a steel rope passes from this velocity limiter, and by one group of guiding wheel distance is dwindled, and arrives and be arranged on hoistway bottom tension wheel; Described velocity limiter is to rotate with vertical mode, utilizes centrifugal principle, and mechanical action is understood fastening and the wiring traction sheave is rotated when hypervelocity; Concrete, when all steel ropes were disconnected entirely, elevator can move with down direction because of force of gravity, and acceleration can make elevator overspeed and velocity limiter is not rotated because of centnifugal force motion fastening, and the car continuation is descending, speed limiter wire rope is motionless, thereby the braking of pulling safety tongs.Owing to need not counterweight, hypervelocity only can just might take place when descending.So velocity limiter is unidirectional (descending) action.
Described car suspension bracket is that cross-sectional profiles is the member of L type, and described car is square member; The car suspension bracket stretches out structure support car with its bottom transverse; Its inside of described car is provided with some straight beams, and its bottom surface and a side are separately fixed on the described car suspension bracket.
Described main motor can be arranged on the sidewall in the two side of hoistway, or is arranged on its rear wall;
Described car suspension bracket facade also is arranged on accordingly near sidewall in the two side or rear wall.Because described main motor and car suspension bracket can adopt above-mentioned side-mounted or rear-mounted installation, be convenient to that gate is set to open the door in button fly front or front and back or open the door in preceding and left side, or preceding and right side opens the door, and can open three directions (in the four direction of front, rear, left and right, can choose wantonly its three) at most.
By two vertical car guide rails, support plays the gross weight of the whole complete machine of being made up of main motor and rope-winding wheel, velocity limiter, retinue control cable, car suspension bracket, steel rope, car and annex, passenger etc., hoistway is load-bearing no longer, has reduced the requirement to hoistway building intensity.Simultaneously, because complete machine weight supports by two vertical car guide rails with all strength, without other fulcrum support, need not change storied building structure, need not reserve support bracket and support pressure spot.
The described motor of saving oneself is a DC machine; Described battery pack is the direct-flow storage battery group; DC machine operates with the power supply of direct-flow storage battery group when emergent, and the direct-flow storage battery group generally can be non-maintaining in long-time, alleviates maintenance workload.
Described brake equipment comprises one group of safety tongs, loose cable and disconnected cable protection device; Described safety tongs is mounted in the interior lower end of car suspension bracket straight beam; Described speed limiter wire rope head unit is installed on the safety tongs linkage, and velocity limiter does not rotate because of centnifugal force motion fastening when car exceeds the speed limit, and the car continuation is descending, speed limiter wire rope is motionless, thereby the starting of pulling safety tongs; Described loose cable and disconnected cable protection device are integrated components, are arranged on car suspension bracket central bottom, also with the integrated interlock of safety tongs linkage; Described loose cable and disconnected cable protection device comprise two groups of pressure metal springs that are located in the hanging steel wire rope head: be used between the balance hanging steel rope drawing tension and organize spring outward; and when one or more hanging steel rope get loose or disconnect in, by force the hanging steel wire rope head is stretched out; touch one group of mechanical accumulation installation, disconnect safety switch, the disconnection of circuit makes elevator interior group of pressure spring out of service.
The bottom of described car suspension bracket also is provided with column or block Elastic plastic-rubber energy disperser; This energy disperser is arranged on car suspension bracket bottom, and fastening with screw, can reduce the requirement to the hoistway bottom degree of depth; And conventional buffer is mounted at the bottom of the well and hold with bracket, and the hoistway bottom degree of depth is had certain requirement.
Described no machine room home lift, also be provided with the safety device that prevents suspension bracket and car tenesmus, this device comprises a mobilizable metal tube, and this metal tube is vertically to be installed on the hoistway bottom, is equipped with one in its bottom and can makes the movable position that is in horizontal or vertical state; When this position activity makes described metal tube be in plumbness, be used for supporting and preventing the tenesmus of car suspension bracket and car.
On described car inwall, also be provided with and the integral type operating case is installed connects handrail; Described operating case is arranged on the handrail, and this deft design and practical integral type operating case connect handrail, owing to be mounted in the small-sized car, can save the space, reduces relative height, especially make things convenient for physical disabilities to use.
Described control box can be arranged on by the lift door frame, hoistway is outside or other corresponding position.This control box adopts microstructure, cooperates the lift door frame height, by the doorframe of can packing into, hoistway is outside or random other free suitable position, can cooperate the household design, be easy to install and latent worn-out collection.
Principle of work of the present utility model is such: be provided with two vertical car guide rails in the vertical hoistway, its top is provided with a metal bracket, main motor, velocity limiter, wiring traction sheave, brake equipment etc. are arranged on this metal bracket, use 2 steel ropes to be wrapped on the rope-winding wheel; When rope-winding wheel rotates, can utilize car to connect the deadweight attraction of gravitation of suspension bracket; Make and tighten up or loosen steel rope; Reach and move and stop purpose up and down.Car with " L " the shape suspension bracket uses and to lead boots, slide against on two guide rails, do operation up and down, also can stop and make transport of passengers or cargo purposes.Utilize car to connect the deadweight and the attraction of gravitation of suspension bracket; By rotary rope-winding wheel folding and unfolding steel rope.Car is moved up and down and stop; Got rid of the habitual counterweight of general elevator; Also need not adorn reusing guide rail.
Advantage of the present utility model is: owing to adopted DC machine and battery pack to cooperate brake equipment, reliable emergency self-saving to put people's device, make that the utility model safety is good, maintainability is good and drive ability is good; Owing to adopted counterweightless, the design of no machine room formula, that power of motor requires is low, very power saving, meet modern environmental demands, convenient, suitable newly-built villa of polytype of complete engine set installation and the indoor and outdoor installation of dwelling house and old room install additional, and are convenient to physical disabilities' use.
Below in conjunction with drawings and Examples the utility model is further specified.
Description of drawings
Fig. 1 is the perspective view of the utility model embodiment.
Fig. 2 is that emergency self-saving is put people's device perspective view among Fig. 1.
Fig. 3 is the perspective view of car among Fig. 1.
Fig. 4 is the perspective view of car suspension bracket among Fig. 1.
The specific embodiment
Embodiment constructs a kind of no machine room home lift that is installed on the three-storey building.
As Fig. 1-shown in Figure 4, in the present embodiment, elevator design adopts no machine room formula device, and load-carrying 300Kg, single phase A.C. 220V, power of motor only are 1.5KW.
This no machine room home lift comprises vertical hoistway, the car 13 that is surrounded by wall 15, the car suspension bracket 7 that is used for fixing car, car guide rail 5, car guide rail top support frame 11, carrying means, control box 14 and is used for the steel rope 6 of traction car 13; Described carrying means is arranged on the described car guide rail top support frame 11, comprises main motor 1, velocity limiter 2, wiring traction sheave, brake equipment; The fag end and the car suspension bracket 7 of one end of described steel rope 6 are fastenedly connected, other end fag end then is anchored on the wiring traction sheave, it is characterized in that: it comprises that also an emergency self-saving puts people's device, this device comprise emergency circuit, Electromechanical Control formula save oneself power-transfer clutch 16, be used for driving the motor and be used for storage battery of saving oneself of this power-transfer clutch to this motor power supply; The wherein said power-transfer clutch 16 of saving oneself is arranged on the side on the main motor 1, and the motor 4 of saving oneself is arranged on main motor 1 top, and its mouth is nested with the steel cable by main motor 1 mouth; When described elevator takes place to have a power failure, the emergency circuit starting, the described power-transfer clutch 16 of saving oneself is closed, connect storage battery to motor 4 power supplies of saving oneself, and drive this motor 4 of saving oneself and make unidirectional rotation and then steel rope 6 is discharged, elevator is stopped the back, is emitted the passenger in the car near the one deck or the first floor because of deadweight or controlled dropping to.
Described velocity limiter 2 is to be fixed on the car guide rail top support frame 11, is to rotate with vertical mode, and a steel rope passes from this velocity limiter, and by one group of guiding wheel distance is dwindled, and arrives and be arranged on hoistway bottom tension wheel; Described velocity limiter 2 is to rotate with vertical mode, utilizes centrifugal principle, and mechanical action is understood fastening and the wiring traction sheave is rotated when hypervelocity; Concrete, when all steel rope 6 complete breaking, elevator can move with down direction because of force of gravity, and acceleration can make elevator overspeed and velocity limiter is not rotated because of centnifugal force motion fastening, car 13 continuation are descending, speed limiter wire rope is motionless, thereby 12 brakings of pulling safety tongs.
Described car suspension bracket 7 is that cross-sectional profiles is the member of L type, and described car 13 is square member; Car suspension bracket 7 stretches out structure support car 13 with its bottom transverse; Described car 13 its inside are provided with some straight beams, and its bottom surface and a side are separately fixed on the described car suspension bracket 7.
Described main motor 1 can be arranged on the sidewall in the two side 15 of hoistway, or is arranged on its rear wall; Described car suspension bracket 7 facades also are arranged on accordingly near sidewall in the two side or rear wall.Because described main motor 1 and car suspension bracket 7 can adopt above-mentioned side-mounted or rear-mounted installation, be convenient to that gate is set to open the door in button fly front or front and back or open the door in preceding and left side, or open the door in preceding and right side, can open three directions (in the four direction of front, rear, left and right, can choose wantonly its three) at most.
By two vertical car guide rails 5, support plays the gross weight of the whole complete machine of being made up of main motor 1 and rope-winding wheel, velocity limiter 2, retinue control cable, car suspension bracket 7, steel rope 6, car 13 and annex, passenger etc., hoistway is load-bearing no longer, has reduced the requirement to hoistway building intensity.Simultaneously, because complete machine weight supports by two vertical car guide rails 5 with all strength, without other fulcrum support, need not change storied building structure, need not reserve support bracket and support pressure spot.
The described motor 4 of saving oneself is DC machine; Described battery pack is the direct-flow storage battery group.
Described brake equipment comprises one group of safety tongs, loose cable and disconnected cable protection device; Described safety tongs is mounted in the interior lower end of car suspension bracket straight beam; Described speed limiter wire rope head unit is installed on the safety tongs linkage, and velocity limiter does not rotate because of centnifugal force motion fastening when car exceeds the speed limit, and the car continuation is descending, speed limiter wire rope is motionless, thereby the starting of pulling safety tongs; Described loose cable and disconnected cable protection device are integrated components, are arranged on car suspension bracket central bottom, also with the integrated interlock of safety tongs linkage; Described loose cable and disconnected cable protection device comprise two groups of pressure metal springs 18 that are located in the hanging steel wire rope head 17: wherein one group be used for flat towards drawing tension, another group because of the hanging carriage weight between steel rope then be used for when steel rope gets loose or rupture, pressure spring makes that fag end stretches out, trigger protection device, disconnection safety return circuit; What this device was concrete is: the outer group of spring that is used for drawing tension between the balance hanging steel rope, and when one or more hanging steel rope get loose or disconnect in, by force the hanging steel wire rope head is stretched out, touch one group of mechanical accumulation installation, disconnect safety switch, the disconnection of circuit makes elevator interior group of pressure spring out of service.
The bottom of described car suspension bracket 7 also is provided with column or block Elastic plastic-rubber energy disperser 9; This energy disperser 9 is arranged on car suspension bracket 7 bottoms, and fastening with screw, can reduce the requirement to the hoistway bottom degree of depth;
Described no machine room home lift, also be provided with the safety device that prevents suspension bracket 7 and car 13 tenesmus, this device comprises a mobilizable metal tube 19, and this metal tube 19 is vertically to be installed on the hoistway bottom, is equipped with one in its bottom and can makes the movable position that is in horizontal or vertical state; When this position activity makes described metal tube 19 be in plumbness, be used for supporting and preventing the tenesmus of car suspension bracket 7 and car 13.
On described car 13 inwalls, also be provided with and the integral type operating case is installed connects handrail 10; Described operating case is arranged on the handrail, and this deft design and practical integral type operating case connect handrail 10, owing to be mounted in the small-sized car, can save the space, reduces relative height, especially make things convenient for physical disabilities to use.
Described control box 14 can be arranged on by the lift door frame, hoistway is outside or other corresponding position.
Main motor 1 places the hoistway top, install and be fixed in car guide rail 5 tops, utilize guide rail 5 to support the total weight of whole ladder and main motor, employing is around the heavy hanging of cable, utilize force of gravity, cooperate the control of VVVF variable voltage variable frequency, make within the controlled speed of elevator, operation up and down, get rid of traditional counterweight, safeguard simple, owing to adopt no machine room formula design and do not have counterweight, elevator can be installed within the hoistway of tiny area, the top layer minimum constructive height only needs the well degree of depth of 2.7M and minimum 130mm, in addition, because it is to be attached on the main motor 1 that people's device is put in the fault first aid, when having a power failure, by circuit supervision in the control panel, the emergency circuit starting, the power-transfer clutch 16 that emergency self-saving is put people's device is engaged, adopting backup battery to drive emergent DC machine 4 rotates, elevator is dropped near behind the one deck or the first floor, emit the passenger in the car 13, and the manual or electronic first aid dish that the no machine room of general tradition all adopts close main motor position to load onto external stirs main motor and makes elevator reduce to next floor to put the people, therefore can constitute some influence to the decorative appearance of indoor and outdoor.

Claims (10)

1, a kind of no machine room home lift comprises vertical hoistway, car, is used for fixing car suspension bracket, car guide rail, car guide rail top support frame, carrying means, the control box of car and is used for the steel rope of traction car; Described carrying means is arranged on the described car guide rail top support frame, comprises main motor, velocity limiter, wiring traction sheave, brake equipment; The fag end and the car suspension bracket of one end of described steel rope are fastenedly connected, other end fag end then is anchored on the wiring traction sheave, it is characterized in that: it comprises that also an emergency self-saving puts people's device, and this device comprises emergency circuit, the power-transfer clutch of saving oneself, be used for driving the motor and be used for storage battery to this motor power supply of saving oneself of this power-transfer clutch; The wherein said power-transfer clutch of saving oneself is arranged on the side on the main motor, and the motor of saving oneself is arranged on main motor top, and its mouth is nested with the steel cable by main motor output end.
2. no machine room home lift according to claim 1, it is characterized in that, described velocity limiter is to be fixed on the car guide rail top support frame, be to rotate with vertical mode, one steel rope passes from this velocity limiter, and distance is dwindled, and arrive and be arranged on hoistway bottom tension wheel by one group of guiding wheel.
3. no machine room home lift according to claim 1 is characterized in that, described car suspension bracket is that cross-sectional profiles is the member of L type, and described car is square member; The car suspension bracket stretches out structure support car with its bottom transverse; Its inside of described car is provided with some straight beams, and its bottom surface and a side are separately fixed on the described car suspension bracket.
4. no machine room home lift according to claim 3 is characterized in that, described main motor can be arranged on the sidewall in the two side of hoistway, or is arranged on its rear wall; Described car suspension bracket facade also is arranged on accordingly near sidewall in the two side or rear wall.
5. no machine room home lift according to claim 1 is characterized in that the described motor of saving oneself is a DC machine; Described battery pack is the direct-flow storage battery group.
6. no machine room home lift according to claim 2 is characterized in that, described brake equipment comprises one group of safety tongs, loose cable and disconnected cable protection device; Described safety tongs is mounted in the interior lower end of car suspension bracket straight beam; Described speed limiter wire rope head unit is installed on the safety tongs linkage, and velocity limiter does not rotate because of centnifugal force motion fastening when car exceeds the speed limit, and the car continuation is descending, speed limiter wire rope is motionless, thereby the starting of pulling safety tongs; Described loose cable and disconnected cable protection device are integrated components, are arranged on car suspension bracket central bottom, also with the integrated interlock of safety tongs linkage; Described loose cable and disconnected cable protection device comprise two groups of pressure metal springs that are located in the hanging steel wire rope head: be used between the balance hanging steel rope drawing tension and organize spring outward; and when one or more hanging steel rope get loose or disconnect in, by force the hanging steel wire rope head is stretched out; touch one group of mechanical accumulation installation, disconnect safety switch, the disconnection of circuit makes elevator interior group of pressure spring out of service.
7. no machine room home lift according to claim 1 is characterized in that, the bottom of described car suspension bracket also is provided with column or block Elastic plastic-rubber energy disperser.
8. no machine room home lift according to claim 1, it is characterized in that, also be provided with the safety device that prevents suspension bracket and car tenesmus, this device comprises a mobilizable metal tube, this metal tube is vertically to be installed on the hoistway bottom, is equipped with one in its bottom and can makes the movable position that is in horizontal or vertical state; When this position activity makes described metal tube be in plumbness, be used for supporting and preventing the tenesmus of car suspension bracket and car.
9. according to the described no machine room home lift of one of claim 1~8, it is characterized in that, on the described car inwall, also be provided with and the integral type operating case is installed connects handrail; Described operating case is arranged on the handrail.
10. according to the described no machine room home lift of one of claim 1~8, it is characterized in that described control box can be arranged on by the lift door frame, the exterior position of hoistway.
CN 200520133407 2005-11-22 2005-11-22 Domestic elevator without machine room CN2908442Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200520133407 CN2908442Y (en) 2005-11-22 2005-11-22 Domestic elevator without machine room

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200520133407 CN2908442Y (en) 2005-11-22 2005-11-22 Domestic elevator without machine room

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Publication Number Publication Date
CN2908442Y true CN2908442Y (en) 2007-06-06

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Application Number Title Priority Date Filing Date
CN 200520133407 CN2908442Y (en) 2005-11-22 2005-11-22 Domestic elevator without machine room

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101618823B (en) * 2008-07-02 2011-07-20 中山市奥美森工业有限公司 Novel outdoor villa elevator
CN102344079A (en) * 2011-06-29 2012-02-08 苏州莱茵电梯制造有限公司 Windmill service elevator
CN102602766A (en) * 2011-12-09 2012-07-25 江南嘉捷电梯股份有限公司 Rescuing device for machine-room-less elevator
CN102674113A (en) * 2012-05-25 2012-09-19 巨人通力电梯有限公司 Domestic machine-room-less lift
CN103538985A (en) * 2013-10-29 2014-01-29 江南嘉捷电梯股份有限公司 Elevator emergency rescue device
CN103964282A (en) * 2013-01-25 2014-08-06 徐延 Household multifunctional elevator
CN109537849A (en) * 2018-11-16 2019-03-29 立达博仕电梯(苏州)有限公司 A kind of installation elevator shaft support frame

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101618823B (en) * 2008-07-02 2011-07-20 中山市奥美森工业有限公司 Novel outdoor villa elevator
CN102344079A (en) * 2011-06-29 2012-02-08 苏州莱茵电梯制造有限公司 Windmill service elevator
CN102602766A (en) * 2011-12-09 2012-07-25 江南嘉捷电梯股份有限公司 Rescuing device for machine-room-less elevator
CN102674113A (en) * 2012-05-25 2012-09-19 巨人通力电梯有限公司 Domestic machine-room-less lift
CN103964282A (en) * 2013-01-25 2014-08-06 徐延 Household multifunctional elevator
CN103538985A (en) * 2013-10-29 2014-01-29 江南嘉捷电梯股份有限公司 Elevator emergency rescue device
CN103538985B (en) * 2013-10-29 2016-02-24 江南嘉捷电梯股份有限公司 A kind of emergency rescue device for elevator
CN109537849A (en) * 2018-11-16 2019-03-29 立达博仕电梯(苏州)有限公司 A kind of installation elevator shaft support frame
CN109537849B (en) * 2018-11-16 2020-10-20 立达博仕电梯(苏州)有限公司 Install elevator well support frame additional

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