CN108996370A - A kind of corridor based on double lead nut body can double seating elevator - Google Patents

A kind of corridor based on double lead nut body can double seating elevator Download PDF

Info

Publication number
CN108996370A
CN108996370A CN201811026295.4A CN201811026295A CN108996370A CN 108996370 A CN108996370 A CN 108996370A CN 201811026295 A CN201811026295 A CN 201811026295A CN 108996370 A CN108996370 A CN 108996370A
Authority
CN
China
Prior art keywords
pedal
handrail
double
carrying platform
corridor
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
CN201811026295.4A
Other languages
Chinese (zh)
Other versions
CN108996370B (en
Inventor
陈睿
肖名君
胡聪芳
黄琛
仲红宇
吕绍龙
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.)
Xiangtan University
Original Assignee
Xiangtan University
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 Xiangtan University filed Critical Xiangtan University
Priority to CN201811026295.4A priority Critical patent/CN108996370B/en
Publication of CN108996370A publication Critical patent/CN108996370A/en
Application granted granted Critical
Publication of CN108996370B publication Critical patent/CN108996370B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B9/00Kinds or types of lifts in, or associated with, buildings or other structures
    • B66B9/06Kinds or types of lifts in, or associated with, buildings or other structures inclined, e.g. serving blast furnaces
    • B66B9/08Kinds or types of lifts in, or associated with, buildings or other structures inclined, e.g. serving blast furnaces associated with stairways, e.g. for transporting disabled persons
    • B66B9/0807Driving mechanisms
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B9/00Kinds or types of lifts in, or associated with, buildings or other structures
    • B66B9/06Kinds or types of lifts in, or associated with, buildings or other structures inclined, e.g. serving blast furnaces
    • B66B9/08Kinds or types of lifts in, or associated with, buildings or other structures inclined, e.g. serving blast furnaces associated with stairways, e.g. for transporting disabled persons
    • B66B9/0846Guide rail
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B9/00Kinds or types of lifts in, or associated with, buildings or other structures
    • B66B9/06Kinds or types of lifts in, or associated with, buildings or other structures inclined, e.g. serving blast furnaces
    • B66B9/08Kinds or types of lifts in, or associated with, buildings or other structures inclined, e.g. serving blast furnaces associated with stairways, e.g. for transporting disabled persons
    • B66B9/0853Lifting platforms, e.g. constructional features

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Automation & Control Theory (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Types And Forms Of Lifts (AREA)

Abstract

A kind of corridor based on double lead nut body of publicity of the present invention can double seating elevator, the invention belongs to passageway lift mechanical device technical field.It is mainly that facility is outmoded and cannot bear box elevator and reequip the building of huge expense to provide that a kind of structure is simple, cheap, easy to use, the passageway lift device that runs smoothly safe.It mainly includes along corridor extension apparatus in the mariages rod guide in guide-track groove, the nut of fixed support body is housed on screw rod guide rail, driving device provides torque by two-stage synchronous belt for double lead, the supporter is connected to carrying platform, carrying platform includes two pieces of pedals and a handrail, it is provided with whether gravity sensor induction has passenger to trample on pedal, carrying platform can move up and down along screw rod guide rail direction, PLC controls the sequentially-operating of whole device, completes function downstairs on steady safe transport passenger.

Description

A kind of corridor based on double lead nut body can double seating elevator
Technical field
The invention belongs to passageway lift mechanical device technical field, being related to a kind of corridor based on double nut mechanism can be double Take elevator.
Background technique
Show that the house that Chinese the elderly uses is built according to Chinese population and centre of research and development data in 2015 It is average after the eighties to make the time, and building at that time is mostly six or seven layers or less.The whole nation has 28.9% the elderly to stay in seven layers It is not provided in the building of auxiliary equipment downstairs below, lives on the old user of three to seven floor in these buildings and downstairs exist It is difficult.It is calculated by 2.21 hundred million elderly population numbers, the ten hundreds of old man of China is positive as the tree people " being suspended in aerial ".Therefore up and down Stair not only bring huge inconvenience to the elderly, and old man's legs and feet are inconvenient, and stair activity is easy to fall down initiation accident, there is also This huge security risk.A kind of corridor based on double nut screw body can double seating elevator for 7 layers of China or less nothing The users of advanced age of elevator residential building, the upper inconvenient resident that goes downstairs, proposition solve the scheme of difficulty downstairs.
In Chinese patent prospectus, application number: CN201720117729.6 discloses a kind of corridor machine instead of walk, Feature: the running track extended along corridor, running track are equipped with the operation car body moved along running track;Main driving execution machine Structure, main driving executing agency include the first chain-drive mechanism and the first driving electricity for driving the first chain-drive mechanism to run The transmission direction of machine, the first chain-drive mechanism is parallel with running track, the biography of the operation car body and the first chain-drive mechanism Dynamic chain is connected;And carrying platform, carrying platform include that the supportive body being connected with operation car body and setting are being propped up Support the foot pedal of lower body part.Each bearing capacity is only a people, thus current corridor machine instead of walk there are complicated in mechanical structure, The problems such as control is inconvenient, transports low efficiency.
Summary of the invention
The purpose of the present invention is to solve the above-mentioned problems, devises a simple structure, convenient control, runs smoothly Corridor reliably based on double lead nut body can double seating elevator.Use of the invention can allow shortage elevator basis to set The cell low cost install convenient type elevator applied helps old man to solve the problems, such as stair activity inconvenience and unsafe.
To achieve the goals above, the present invention adopts the following technical scheme:
It mainly include along corridor extension apparatus in the mariages rod guide in guide-track groove, screw rod guide rail be equipped with fixed support body Nut, the supporter are connected to carrying platform, and carrying platform lower end is that two pieces of pedals are hinged through the hinge under supporter Supporter upper end is fixed on by bearing for handrail in end, upper end, and whether the pedal upper surface is provided with gravity sensor induction There is passenger to trample, carrying platform can move up and down along screw rod guide rail direction, and PLC controls the sequentially-operating of whole device, complete electricity The steady reliable raising and lowering of ladder.
The corridor based on double lead nut body of this programme can double seating elevator pass through main driving stepper motor export Torque, the rotation of double lead-screw mechanism is driven by two-stage toothed belt transmission, and motor output shaft and lower screw rod are primary transmission, lower silk Bar passes through the double-deck synchronizing wheel and upper screw rod constitutes secondary transmission, and secondary transmission ratio is 1, keeps two screw rod revolving speeds identical, feed screw nut Linear movement of the carrying platform along running track is converted by circular motion, so that the upper corridor of user or lower corridor are helped, with The two-stage chain conveyer of prior art use includes the first chain-drive mechanism and the first drive for driving the first chain-drive mechanism to run Dynamic motor, the transmission direction of the first chain-drive mechanism labyrinth parallel from running track are different.Its structure of the technical program Simply, low manufacture cost, easy to use, and operational safety is steadily reliable.
Preferably, the elevator machine part need to complete to be led along corridor ascent direction up and down motion function by double lead Rail nut body composition, two guide rail of screw rod of the double lead nut body are arranged in same perpendicular, and described lead The slope of rail is consistent with the corridor rate of rise, and length is according to the specific Design of length of different corridors.The fortune used with the prior art Driving body
It is equipped with the bottom roller with lower guideway, operation car body is equipped with, this skill different from the labyrinth of the upper roller of upper rail Double lead nut body used in art scheme runs smoothly, and elliptical gear is small, and have the function of it is self-locking, further promoted can The steady reliability of the double seating elevator operation of corridor.
Preferably, the controller is PLC, concrete model are as follows: FX1S-30MR-001, control whole device sequence are run.
Preferably, gravity sensor is made of pressure-sensitive switch, and the inductive switch is by taking ZYC-300C as an example, as stepping on The signal source of the conversion of Board position and the conversion of armrest positions and the conversion of driving motor speed.
Preferably, two pieces of symmetrical pedals are arranged in the carrying platform, two people can take simultaneously, Lifting Convey effect Rate.Pedal passes through hinge and horizontal axis connection, pedal following settings hydraulic cylinder.The carrying platform design of prior art design For seat, a people can only be taken every time, makes to take dynamic complication, including is set foot on pedal, sat down, stand up, leaving four, pedal Movement, the technical program need to only set foot on pedal, leave two, pedal movements.
Preferably, the pedal may exist folding and unfolding two states, the flexible lower realization of the hydraulic cylinder below pedal.Liquid Press pump is hydraulic oil supply cylinder, hydraulic oil is back to fuel tank, when occupied, hydraulic cylinder travel is most short, and pedal is lowered into and platform Terrace is horizontal;It is unmanned when taking, stroke longest, pedal obliquely with 75 ° of step surface angle, save stairway spaces, do not influence building It normally passes through in road.It can be folded different from the carrying platform seat of prior art, pedal can rotate, used to be Angle limiting structure is rotated, foot pedal rotation angle limiting structure includes that the dynamic limited block being arranged on horizontal rotating shaft and setting exist Fixation limited block on supportive body, the angle that foot pedal processed rotates down around horizontal rotating shaft.
Preferably, the control switch part includes 2 wall switches, 1 handrail switch, 2 limit switches and one Pressure-sensitive switch constitute, wall switch be calling elevator signal source, handrail switch be elevator start up and down signal source, 2 A limit switch is shutdown switch when elevator runs to terminal.
Preferably, the handrail of run switch is set, and handrail lower end is connect by bearing block with supporter, built in handrail lower end Motor provides rotation torque, connects handrail by positive coupling, handrail is rotated to vertical with metope when occupied, nobody multiplies It is rotated when seat to parallel with metope, avoids occupying stairway spaces.
Preferably, screw rod is fixed on guide-track groove upper surface by bearing, passes through guide-track groove lower end surface, passes through toothed belt transmission Driving device is connected, driving motor is installed and on the metope of screw lower end.
Preferably, driving motor uses stepper motor, revolving speed when revolving speed and zero load when being arranged manned using machine governor Whether two grades of revolving speeds are incuded occupied come speed-changing by gravity sensor on pedal.
The beneficial effects of the present invention are:
First, there is structure simple, low manufacture cost, easy to use, and the safe and reliable feature that runs smoothly.
Second, corridor machine instead of walk when not in use, can pack up foot pedal automatically, handrail is rotated to parallel with metope, Effectively reduce the occupied space to corridor;And handrail can also be effectively prevent to pay the problem of colliding with pedestrian.
Third, being provided with two pieces of standing pedals, it is convenient to take, while can take two people, improves conevying efficiency.
Fourth, setting no-load speed is faster than manned speed, passenger waiting time, further Lifting Convey efficiency and use are reduced Family experience.
Detailed description of the invention:
Fig. 1 is the overall schematic that the present invention is implemented;
Fig. 2 is the partial enlargement structural representation that the present invention is implemented;
Schematic diagram when Fig. 3 is carrying platform motion process;
Fig. 4 is that carrying platform is in non-operating state schematic diagram;
Fig. 5 is running part structural schematic diagram;
Fig. 6 is supporter partial front elevation view;
Fig. 7 is handrail bottom rotating mechanism schematic diagram;
Fig. 8 is limit switch partial schematic diagram in guide-track groove;
Fig. 9 is PLC ladder diagram;
In figure:
1 wall switch A;2 wall switch B;3 corridor walls;4 corridor steps;5 handrails;6 guide-track grooves;7 screw rod A;8 lead screw B;9 steps Into motor;10 PLC controllers;11 handrails switch;12 motors;13 gravity sensor A;14 pedal A;15 hydraulic pumps;16 hydraulic oil Case;
17 pedal B;18 gravity sensor B;19 supporters;20 hydraulic cylinder A;21 hydraulic cylinder B;
22 hinges;23 single-layer synchronous wheels;The 24 double-deck synchronizing wheels;25 synchronous belts;26 hydraulic circuits;
27 deep groove ball bearings;28 positive couplings;29 bearing blocks;30 limit switches.
Specific embodiment
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention, And can be practiced according to description, the following is a detailed description of the preferred embodiments of the present invention and the accompanying drawings.
As shown in Fig. 2, a kind of corridor based on double lead nut body can double seating elevator, comprising: extend along corridor Mariages rod guide guide rail 7 and 8, power device stepper motor 9 and carrying platform, the device is in use, controller selection is high Performance, the PLC controller of high stable.
Stepper motor is disposed in proximity to guide-track groove lower end, and gear includes that motor carries retarder, V belt translation reduction ratio And the machine governor of PLC control.Stepper motor output shaft is connected by key synchronizing wheel output torque.
The kind of drive is second level V belt translation, and 7 bottom of upper screw rod is connected by key the driven wheel of fixed synchronizing wheel, lower screw rod 8 Bottom is connected by key fixed pair of lamina synchronizing wheel 24.
Supporter 19 is welded on feed screw nut, supporter bottom is provided with hydraulic cylinder, and hydraulic cylinder 20,21 is connected by hinge 22 Pedal 14 and 17 is connect, the leading portion of pedal is articulated on supporter,
Pedal can be rotated around front end hinge point, and hydraulic pump 15 is hydraulic oil supply cylinder, and hydraulic oil is back to by oil return line 26 Fuel tank 16, most in short-term, pedal and step surface are horizontal for hydraulic cylinder travel;When stroke longest, pedal obliquely with step surface angle 75°.Handrail 5 is connected by deep groove ball bearing 27 on supporter, starting elevator rise and fall switch 11 is provided on handrail.Handrail Bottom is driven by the rotation of micro-machine 12, and pedal upper surface is arranged gravity sensing and switchs, pressure on inductive switch sense pedal When disappearance, pedal rotates under the drive that hydraulic cylinder extends from horizontal direction to obliquely, while handrail is in motor circular motion Drive under to parallel with metope, hydraulic cylinder bottom is installed on supporter also by hinge 22 with metope vertical rotary.
1 wall switch A and 2 wall switch B is calling elevator switch respectively, is mounted on the wall in the every floor road of stair metope The beginning and end of guide rail is arranged in face, limit switch 30, so that elevator is reached designated position and stops.
The corridor based on double lead nut body of the present embodiment can double seating elevator it is specifically used as follows:
When using passageway lift:
When passenger needs to take, if necessary to upstairs, press wall switch A, one signal of controller is given, in PLC controller Under control, the supporter and carrying platform are in the case where the circular motion of motor is converted to linear movement by feed screw nut, with zero load fortune Scanning frequency degree 1m/s moves to starting point.
After reaching starting point, hydraulic cylinder is shunk, and is driven pedal 14,17 to rotate to horizontal direction from diagonal upward direction, is helped simultaneously Hand under the rotation of bottom motors, handrail from metope parallel rotating to metope vertical direction.It is all cut to pedal and handrail Operating status is shifted to, passenger sets foot on pedal, holds handrail, once can at most take two passengers, and user stands on pedal On, pressure is sensed to the pressure-sensitive switch on pedal, and then user presses the rising switch on handrail, and gravity sensing is opened It closes and handrail switch series connection, need to contact simultaneously can start supporter and carrying platform moves obliquely, and device is with manned speed The speed of 0.4m/s is run, and is reached home and is automatically stopped.
After going down to passenger, on pedal after the power revocation of inductive switch, pedal slowly rotates to the receipts of diagonal upward direction The state of rising, while handrail goes to the off working state parallel with metope in the rotation backspin of handrail bottom motors, downstairs and upstairs Mode of operation it is consistent with principle.
Being provided for the embodiments of the invention a kind of corridor based on double lead nut body above can double seating elevator It is described in detail, for those of ordinary skill in the art, thought according to an embodiment of the present invention, in specific embodiment And there will be changes in application range, in conclusion the content of the present specification should not be construed as the limitation to invention, Fan Yiben Any change that invention design philosophy is made is all within protection scope of the present invention.

Claims (9)

1. a kind of corridor based on double lead nut body can double seating elevator, it mainly includes being installed on metope to prolong along corridor The operation guide rail (7 stretched;8), running track is equipped with the operation supporter (19) moved along running track, and driving device (12) is logical It crosses executing agency and power is provided, the supporter is connected to carrying platform, the pedal (14 in carrying platform;17) pass through hinge (22) supporter (19) lower end, pedal (14 are connected to;17) can around hinge (22) rotated from horizontal direction to diagonal upward direction, institute The pedal (14 stated;It 17) further include loading detection device, carrying platform can be along screw rod guide rail (7;8) direction moves up and down, special Sign is: the guide rail is mariages stem nut (6;7;8) guide rail mechanism, the carrying platform further include rotatable help Hand (5), pedal (14;17) rotation is by hydraulic cylinder (20;21) it realizes.
2. mariages rod guide according to claim 1 is it is characterized by: two guide rails (7;8) it is arranged in same perpendicular It is interior, and the slope of the guide rail is consistent with corridor step (4) rate of rise.
3. pedal according to claim 1 is it is characterized by: be provided with about the symmetrical two pieces of pedals (14 of handrail;17), Elevator traffic efficiency can be improved.
4. pedal lower cylinder (20 according to claim 1 or 3;21) the parallel step surface of pedal may be implemented in flexible Be retracted into step surface obliquely at the conversion of 75 ° of angles, two kinds of positions.
5. pedal according to claim 3 it is characterized by: the signal converted of its position into gravity sensor (13;18), The position that the upper surface passenger of pedal stands is set, when gravity sensor (13;18) when the no pressure of top, pedal (14;17) It can pack up automatically, until next passenger puts down automatically when taking.
6. driving device according to claim 1 is it is characterized by: be provided with two grades of revolving speeds, when respectively manned revolving speed and Revolving speed when unloaded.
7. driving device according to claim 4 or 5 is it is characterized by: the signal of rate conversion is the gravity-feed tank on pedal Answer device (13;18), when gravity sensor (13;18) top is when having pressure, the driving motor with it is manned when revolving speed export, when weight Power inductor (13;18) it when the no pressure of top, is exported with revolving speed when zero load.
8. handrail according to claim 1 is helped it is characterized by: setting up and down change-over switch (11) on handrail (5) Hand is connected to supporter (19) upper end by bearing block (29), and handrail (5) lower end is arranged micro-machine (12) and passes through rigid shaft coupling Device (28) drives handrail (5) rotation, and two kinds of positions that setting handrail rotates, handrail is unmanned to take perpendicular to metope (3) when seating Shi Xuanzhuan is extremely parallel with metope (3).
9. the executing agency of the connection according to claim 1 with driving device it is characterized by: its to be set as two-stage synchronous Band (25) is driven, and stepper motor (9) output shaft and lower screw rod (8) are primary transmission, lower screw rod (8) pass through the double-deck synchronizing wheel with it is upper Screw rod (7) constitutes secondary transmission, and secondary transmission ratio is 1.
CN201811026295.4A 2018-09-04 2018-09-04 Corridor elevator capable of being taken by two persons based on double-screw rod nut mechanism Active CN108996370B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811026295.4A CN108996370B (en) 2018-09-04 2018-09-04 Corridor elevator capable of being taken by two persons based on double-screw rod nut mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811026295.4A CN108996370B (en) 2018-09-04 2018-09-04 Corridor elevator capable of being taken by two persons based on double-screw rod nut mechanism

Publications (2)

Publication Number Publication Date
CN108996370A true CN108996370A (en) 2018-12-14
CN108996370B CN108996370B (en) 2020-11-13

Family

ID=64591541

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811026295.4A Active CN108996370B (en) 2018-09-04 2018-09-04 Corridor elevator capable of being taken by two persons based on double-screw rod nut mechanism

Country Status (1)

Country Link
CN (1) CN108996370B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111268537A (en) * 2020-03-26 2020-06-12 山东理工职业学院 Elevator installed on stair railing
CN111422707A (en) * 2020-05-26 2020-07-17 江西电力职业技术学院 Corridor elevator and control method thereof
CN111620219A (en) * 2020-05-08 2020-09-04 龚慧挺 Closed corridor elevator

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030047389A1 (en) * 2001-08-21 2003-03-13 Nippon Yusoki Co., Ltd. Lift truck
JP2008201519A (en) * 2007-02-19 2008-09-04 Kuma Lift Gijutsu Kenkyusho:Kk Chair type stairway elevator
KR20110131646A (en) * 2010-05-31 2011-12-07 임미숙 Walking aid equipment for the week and the handicapped
CN103626011A (en) * 2013-12-04 2014-03-12 王冰 Embedded home elevator
CN205527190U (en) * 2016-04-28 2016-08-31 竺含冰 Corridor elevator
CN106698155A (en) * 2017-01-22 2017-05-24 长安大学 Relay type lead screw slide rail corridor elevator
EP3178770A1 (en) * 2015-12-07 2017-06-14 Thyssenkrupp Accessibility BV Stairlift system
CN107381291A (en) * 2017-08-26 2017-11-24 李平 A kind of corridor apparatus for ride instead of walk

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030047389A1 (en) * 2001-08-21 2003-03-13 Nippon Yusoki Co., Ltd. Lift truck
JP2008201519A (en) * 2007-02-19 2008-09-04 Kuma Lift Gijutsu Kenkyusho:Kk Chair type stairway elevator
KR20110131646A (en) * 2010-05-31 2011-12-07 임미숙 Walking aid equipment for the week and the handicapped
CN103626011A (en) * 2013-12-04 2014-03-12 王冰 Embedded home elevator
EP3178770A1 (en) * 2015-12-07 2017-06-14 Thyssenkrupp Accessibility BV Stairlift system
CN205527190U (en) * 2016-04-28 2016-08-31 竺含冰 Corridor elevator
CN106698155A (en) * 2017-01-22 2017-05-24 长安大学 Relay type lead screw slide rail corridor elevator
CN107381291A (en) * 2017-08-26 2017-11-24 李平 A kind of corridor apparatus for ride instead of walk

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111268537A (en) * 2020-03-26 2020-06-12 山东理工职业学院 Elevator installed on stair railing
CN111620219A (en) * 2020-05-08 2020-09-04 龚慧挺 Closed corridor elevator
CN111422707A (en) * 2020-05-26 2020-07-17 江西电力职业技术学院 Corridor elevator and control method thereof

Also Published As

Publication number Publication date
CN108996370B (en) 2020-11-13

Similar Documents

Publication Publication Date Title
US10399822B2 (en) Hydraulic elevating platform having no guide rails and elevating method
CN108996370A (en) A kind of corridor based on double lead nut body can double seating elevator
CN107814294B (en) Corridor elevator
CN205061259U (en) Two -way stair lift
CN207330054U (en) A kind of passageway lift of turnover plate type
CN206645674U (en) Two-sided chute type stair lift
CN206328024U (en) A kind of double terraced corridor boosting elevators of a rail
CN209872061U (en) Intelligent walking ladder mobility aid based on Internet of things
CN108946393B (en) Traction type sliding elevator
CN111270818A (en) Stair handrail for helping old people and using method
CN206521176U (en) Point terraced separated type corridor elevator of common power driving
CN104724578A (en) Intelligent passageway transpiration elevator
CN109110615A (en) A kind of passageway lift
CN210710236U (en) Double-rail floor elevator
CN209835352U (en) Corridor lifting system and corridor lifter
CN204454179U (en) Intelligent corridor is ridden instead of walk elevator
CN207627505U (en) A kind of economical ground is help the disabled across step robot
CN206720529U (en) A kind of intelligent passageway mobile device draws cabinet
CN106586779B (en) Point terraced separated type corridor elevator of common power driving
CN220745038U (en) Auxiliary upstairs machine
CN205187567U (en) No guide rail hydraulic lifting platform
CN106348132B (en) A kind of motor-driven continuous circulation elevator system
CN204474083U (en) Intelligent corridor is ridden instead of walk elevator
CN112010136A (en) Double-rail floor elevator
CN216889610U (en) Safety electric step ladder

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant