CN109823943B - Domestic multilayer miniature vertical lifting elevator with compact structure - Google Patents
Domestic multilayer miniature vertical lifting elevator with compact structure Download PDFInfo
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- CN109823943B CN109823943B CN201910230086.XA CN201910230086A CN109823943B CN 109823943 B CN109823943 B CN 109823943B CN 201910230086 A CN201910230086 A CN 201910230086A CN 109823943 B CN109823943 B CN 109823943B
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- 239000003638 chemical reducing agent Substances 0.000 claims description 11
- 230000007246 mechanism Effects 0.000 claims description 6
- 230000035939 shock Effects 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 229910000831 Steel Inorganic materials 0.000 description 15
- 239000010959 steel Substances 0.000 description 15
- 239000003921 oil Substances 0.000 description 11
- 238000007654 immersion Methods 0.000 description 6
- 230000003028 elevating effect Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000006399 behavior Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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Abstract
The invention discloses a household multilayer miniature vertical lifting elevator with a compact structure, which comprises: the elevator comprises an electric control device, a hoistway, a lifting chain, a lift car, balancing weights and a lifting frame, wherein the balancing weights are arranged between balancing weight guide rails on two sides, lifting frame guide rails are respectively arranged on the front sides of the stand columns, the lift car is arranged on the front sides of the lifting frame guide rails, chain wheel shafts are arranged right above the lifting frame guide rails, two lifting chain wheels are arranged on the chain wheel shafts at intervals, the two ends of the lifting chain, after crossing the lifting chain wheels, are respectively connected with the balancing weights and the lifting frame, and the electric control device is linearly connected with a brake motor to realize lifting control of the lift car. By the mode, the household multilayer miniature vertical lifting elevator disclosed by the invention has the advantages of small occupied space, greatly reduced manufacturing cost and high use stability.
Description
Technical Field
The invention relates to the technical field of elevators, in particular to a household multi-layer miniature vertical lifting elevator with a compact structure.
Background
Different from the vertical lift elevator used in high-rise buildings, the market of the household miniature vertical lift elevator is still immature, and the household miniature vertical lift elevator is gradually applied in recent years.
The structure of the existing household miniature vertical lifting elevator mainly comprises two types:
one is to introduce the hydraulic cylinder jacking system abroad, add the wire rope to promote the technology, the organization design is complex, the area of occupation space and ground is large, and can only achieve 3 layers at most, and the cost is expensive, the acceptance of ordinary people's family is very low;
the other is that on the basis of the current commercial steel wire rope lifting principle elevator, only a miniaturized improvement design is carried out, structural design improvement is not carried out according to practical application and use performance, the problems of large occupied space and high manufacturing cost still exist, and the popularization in wide rural self-building house markets is difficult.
Disclosure of Invention
The invention mainly solves the technical problem of providing the household multi-layer miniature vertical lifting elevator with a compact structure, which reduces the cost and the occupied space.
In order to solve the technical problems, the invention adopts a technical scheme that: provided is a compact structure of a home multi-layered miniature vertical lift elevator, comprising: the elevator comprises an electric control device, a hoistway, a lifting chain, a lift car, balancing weights and a lifting frame, wherein the hoistway comprises upright posts symmetrically arranged at the back, balancing weight guide rails are respectively arranged at the inner sides of the upright posts, the balancing weights are arranged between the balancing weight guide rails at the two sides, lifting frame guide rails are respectively arranged at the front sides of the upright posts, the lifting frame is arranged between the lifting frame guide rails at the two sides, chain shafts are arranged right above the lifting frame guide rails, two lifting chain wheels are arranged on the chain shafts at intervals, the lifting chain spans the two ends of the lifting chain behind the lifting chain wheels and are respectively connected with the balancing weights and the lifting frame, a speed reducer is arranged at the top of the hoistway, a brake motor is arranged at the input end of the speed reducer, a driving chain wheel is arranged at the output end of the speed reducer, a driven chain wheel corresponding to the driving chain wheel is arranged between the driving chain wheel and the driven chain wheel, and the electric control device is in linear connection with the brake motor to realize lifting control of the lift car.
In a preferred embodiment of the present invention, the counterweight guide rail and the upright are respectively C-shaped channel steel.
In a preferred embodiment of the invention, the lifting frame rail is an L-shaped rail.
In a preferred embodiment of the present invention, front and rear limiting devices are disposed on two sides of the lifting frame, the front and rear limiting devices include a first roller seat and a first roller, the first roller seat is fixed on a side surface of the lifting frame by using a first bolt, and the two first rollers are disposed on the first roller seat and located in front of and behind the end of the L-shaped guide rail.
In a preferred embodiment of the present invention, left and right limiting devices are disposed on two sides of the lifting frame, the left and right limiting devices include a second roller seat and a second roller, the second roller seat is fixed on the upper portion and the lower portion of the lifting frame by adopting a second bolt, the second roller is disposed on the second roller seat and corresponds to the position of the end of the L-shaped guide rail, a wheel groove is concavely disposed on the outer circle of the second roller, and the end of the L-shaped guide rail extends into the wheel groove.
In a preferred embodiment of the invention, the hoistway further comprises a door frame and two side wall plates, wherein the wall plates are respectively arranged on the outer side surfaces of the upright posts and extend forwards, the door frame is arranged at the front end of the wall plate at intervals up and down, the front surface of the car is of an open structure, the two sides of the front surface of the car, which are open, are oppositely provided with a light curtain emitting device and a light curtain receiving device, and the light curtain emitting device and the light curtain receiving device are respectively connected with the electric control device.
In a preferred embodiment of the invention, a side-by-side door is arranged in the door frame, a baffle extending downwards is arranged at the top of the back of the door frame to limit the side-by-side door, first electromagnets pointing to the side-by-side door are respectively arranged at the top and the bottom of the door frame, positioning holes are formed in the top of the side-by-side door, positioning columns extending into the positioning holes are arranged at the bottom of the first electromagnets, a permanent magnet is arranged at the back of the side-by-side door, a magnetic switch opposite to the permanent magnet is arranged on the car, the magnetic switch is in linear connection with an electric control device, and the electric control device comprises an in-box switch positioned in the car and an out-of-box switch positioned on the door frame.
In a preferred embodiment of the invention, an oil box extending to the position of the lifting chain is arranged in the well, an oil immersion sponge is arranged in the oil box, and a through hole corresponding to the lifting chain is arranged in the oil immersion sponge.
In a preferred embodiment of the invention, a speed sensor extending to the position of the lifting chain is arranged in the hoistway, a speed measuring chain wheel meshed with the lifting chain is arranged on the speed sensor, the speed sensor is in linear connection with an electric control device for monitoring the lifting speed, an anti-falling mechanism is arranged on the lifting frame and comprises a second electromagnet and a steel pin, the steel pin is arranged on the second electromagnet and points to a lifting frame guide rail, a row of jacks corresponding to the steel pin are arranged on the lifting frame guide rail, the electric control device is connected with the second electromagnet, and the second electromagnet is driven to act when the lift car falls, so that the steel pin is inserted into the corresponding jacks.
In a preferred embodiment of the invention, the bottom of the hoistway is provided with a shock pad located below the car.
The beneficial effects of the invention are as follows: the household multi-layer miniature vertical lifting elevator with the compact structure can adopt the standard roller chain as the lifting chain to replace the traditional lifting steel wire rope, and structural design change is performed on the basis of meeting the use safety standard, so that the occupied space is small, the manufacturing cost is greatly reduced, the use stability is high, and the household multi-layer miniature vertical lifting elevator can be accepted by families of general consumers.
Drawings
For a clearer description of the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the description below are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art, wherein:
fig. 1 is a side view of a preferred embodiment of a compact, home multi-level micro vertical lift elevator of the present invention;
fig. 2 is a top view of a preferred embodiment of a compact home multi-layered micro vertical lift elevator of the present invention;
fig. 3 is a schematic view of a preferred embodiment of a front and rear limit device in a compact structure of a home multi-layered miniature vertical lift elevator according to the present invention;
fig. 4 is a schematic structural view of a preferred embodiment of a left and right limiting device in a compact-structured home multi-layered micro vertical lift elevator according to the present invention;
fig. 5 is a schematic view of a preferred embodiment of an oil box in a compact home multi-layered miniature vertical lift elevator according to the present invention;
fig. 6 is a schematic view of a preferred embodiment of the present invention in a compact home multi-layered miniature vertical lift elevator with a first electromagnet position.
Detailed Description
The following description of the technical solutions in the embodiments of the present invention will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 to 6, an embodiment of the present invention includes:
the compact structure of the home multi-layered micro vertical lift elevator shown in fig. 1 comprises: the elevator comprises an electric control device, a well, lifting chains 18, a car 1, balancing weights 7 and lifting frames 2, wherein the well comprises upright posts 5 symmetrically arranged at the back, the upright posts 5 are C-shaped channel steel, balancing weight guide rails 6 are respectively arranged on the inner side surfaces of the upright posts 5, the balancing weights 7 are arranged between the balancing weight guide rails 6 at the two sides, and the balancing weight guide rails 6 are also C-shaped channel steel to realize lifting guide of the balancing weights 7. The balancing weight 7 is positioned between the upright posts 5, so that the secrecy is good, and the occupation of space is reduced.
As shown in fig. 2, the front sides of the upright posts 5 are respectively provided with a lifting frame guide rail 8, and the lifting frame guide rails 8 are L-shaped guide rails. The lifting frame 2 is arranged between lifting frame guide rails 8 on two sides, the lift car 1 is arranged on the front side of the lifting frame 2, the lift car 1 is driven to lift through the lifting frame 2, and the space can be effectively saved. The corresponding flexible cables are distributed in the gap between the balancing weight 7 and the lifting frame 2, so that the space utilization rate is further improved. The counterweight guide rail 6 and the lifting frame guide rail 8 are intensively designed at the rear of the car 1 and are designed and installed on the same upright post 5, so that the limited space can be utilized to the maximum extent.
As shown in fig. 1, a sprocket shaft 20 is arranged right above the lifting frame guide rail 8, the stress is reasonable, two lifting sprockets 19 are arranged on the sprocket shaft 20 at intervals, the lifting chains 18 are respectively connected with the balancing weights 7 and the lifting frame 2 after crossing the lifting sprockets 19, and the two lifting chains 18 are designed, so that the safety coefficient is high. The standard roller chain is adopted as the lifting chain 18 to replace the traditional lifting steel wire rope, and the driving energy consumption of the lift car 1 during lifting is reduced through the balancing weight 7. In addition, the lifting chain wheel 19 is much smaller than the diameter of the steel wire rope wheel with the same transmission effect, so that the occupied space volume of the transmission mechanism can be effectively reduced.
The elevator car is characterized in that a speed reducer 25 is arranged at the top of the hoistway, a brake motor 24 is arranged at the input end of the speed reducer 25, a worm gear speed reducer is adopted by the speed reducer 25, a single-phase speed regulation brake motor is adopted by the brake motor 24 to be directly connected with the speed reducer 25, a driving sprocket 23 is arranged at the output end of the brake motor 24, a driven sprocket 21 corresponding to the driving sprocket 23 is arranged on a sprocket shaft 20, a transmission chain 22 is arranged between the driving sprocket 23 and the driven sprocket 21, an electric control device is linearly connected with the brake motor 24 to realize forward and reverse rotation driving of the brake motor 24, lifting control of the elevator car 1 is realized, the brake motor 24 has a brake function, and safety is high.
The safety in utilization of elevator is put in first place, as shown in fig. 1, be provided with the speed sensor 26 that extends to elevating chain 18 position department in the well, be provided with the speed measuring sprocket that meshes with elevating chain 18 on the speed sensor 26, speed sensor 26 carries out the monitoring of elevating speed with electric control device linear connection, be provided with anti-falling mechanism 4 on the hoisting frame 2, anti-falling mechanism 4 includes second electro-magnet and steel pin, the steel pin sets up on the second electro-magnet and directs hoisting frame guide rail 8, be provided with a row of jack that corresponds with the steel pin on the hoisting frame guide rail 8, electric control device is connected with the second electro-magnet, and when car 1 falls, elevating chain 18 descends at the speed, speed sensor 26 sends the speed signal of elevating chain 18 to electric control device, and electric control device judges car 1 fall the condition, drives the action of second electro-magnet when car 1 falls for the steel pin inserts corresponding jack, stops the continuation of falling of car 1, has promoted the safety in utilization.
The electric control device comprises an in-box switch 3 positioned in the car 1 and an out-box switch 13 positioned on a door frame 35, so that the control of the elevator can be conveniently performed inside and outside. As shown in fig. 1, the bottom of the hoistway is provided with a shock pad 16 below the car 1, and when the car 1 descends to the bottom, the car contacts with the shock pad 16 to realize buffering, so that the use safety is further improved.
As shown in fig. 2, the hoistway further includes a door frame 35 and two side wall plates 10, the wall plates 10 are respectively disposed on the outer sides of the upright posts 5 and extend forward, the door frames 35 are disposed at the front ends of the wall plates 10 at intervals up and down, and each floor is correspondingly provided with a door frame 35. The elevator car is characterized in that the front side of the elevator car 1 is of an open structure, the dead weight is reduced, light curtain emitting devices 11 and light curtain receiving devices 12 are oppositely arranged on the two sides of the front side of the elevator car 1, the light curtain emitting devices 11 and the light curtain receiving devices 12 are respectively connected with an electric control device, and in the elevator car 1 lifting process, the light curtain emitting devices 11 and the light curtain receiving devices 12 are utilized to standardize the behaviors of elevator passengers, so that the elevator car 1 does not need to be provided with a door plate, the dead weight is reduced, meanwhile, the internal space is utilized to the maximum extent, and the miniaturization of the structure is facilitated.
As shown in fig. 3, the front and rear limiting devices are arranged on two sides of the lifting frame 2, the front and rear limiting devices comprise first roller seats 28 and first rollers 27, the first roller seats 28 are fixed on the side surface of the lifting frame 2 by adopting first bolts 29, and the two first rollers 27 are arranged on the first roller seats 28 and positioned in front of and behind the tail ends of the L-shaped guide rails, so that the rolling clamping of the L-shaped guide rails is realized, and the front and rear shaking of the lifting frame 2 is avoided.
As shown in fig. 4, the left and right limiting devices are arranged on two sides of the lifting frame 2, the left and right limiting devices comprise a second roller seat 34 and a second roller 30, the second roller seat 34 is fixed on the upper portion and the lower portion of the lifting frame 2 by adopting a second bolt 31, the second roller 30 is arranged on the second roller seat 34 and corresponds to the position of the tail end of the L-shaped guide rail, a wheel groove 33 is concavely arranged on the outer circle of the second roller 30, and the tail end of the L-shaped guide rail extends into the wheel groove 33, so that the left and right limiting of the lifting frame 2 is realized, and the lifting and hovering stability of the car 1 is improved. The first roller 27 and the second roller 30 are more convenient to replace, and maintenance cost is reduced.
The door frame 35 is internally provided with the split door 9, the split door 9 is installed in the door frame 35 through a hinge, the split door 9 is turned over to be opened and closed, and the split door 9 is turned outwards to be opened, so that the inner space of the car 1 is not occupied. The door frame 35 back top is provided with downwardly extending's separation blade 38, carries out the spacing of opening a door 9, door frame 35 top and bottom are provided with directional first electro-magnet 15 of opening a door to the side respectively, opening a door 9 top is provided with the locating hole, first electro-magnet 15 bottom is provided with the reference column 17 that extends to in the locating hole, realizes opening a door 9's locking at will, avoids opening at will, has ensured the safety in utilization.
As shown in fig. 5, an oil box 37 extending to the position of the lifting chain 18 is arranged in the hoistway, an oil immersion sponge 36 is arranged in the oil box 37, a through hole corresponding to the lifting chain 18 is arranged in the oil immersion sponge 36, and when the lifting chain 18 moves up and down, lubricating oil is smeared on the lifting chain 18 by the oil immersion sponge 36, so that the rust prevention and lubrication effects are improved, more lubricating oil can be stored in the oil immersion sponge 36 for slow release, and the maintenance frequency is reduced.
In order to further improve the use safety, the control of the split door 9 is further required, as shown in fig. 6, a permanent magnet 14 is disposed on the back of the split door 9, a magnetic switch 32 opposite to the permanent magnet 14 is disposed on the car 1, the magnetic switch 32 is linearly connected with the electric control device, when the car 1 does not reach the position of the door frame 35, the magnetic switch 32 is turned off, the opening of the split door 9 is avoided, when the car 1 reaches the position of the door frame 35, the magnetic switch 32 is turned on, and the first electromagnet 15 can be contracted under the action of the electric control device to unlock the split door 9.
In summary, compared with the existing elevator, the household multi-layer miniature vertical lifting elevator provided by the invention has the advantages that the occupied area is saved more under the condition that the area of the elevator car is the same, the balancing weight balance principle structure is utilized, the running electric power is low, the electric charge is saved, the optimization design is adopted, the overall weight and the manufacturing cost are greatly reduced, and the household multi-layer miniature vertical lifting elevator is suitable for being used in buildings with two layers and more than two layers and built in vast rural areas at present.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes or direct or indirect application in other related arts are included in the scope of the present invention.
Claims (5)
1. A compact construction home multi-layered miniature vertical lift elevator comprising: the electric control device, a well, a lifting chain, a lift car, a balancing weight and a lifting frame, wherein the well comprises upright posts symmetrically arranged at the back, balancing weight guide rails are respectively arranged at the inner sides of the upright posts, the balancing weights are arranged between the balancing weight guide rails at the two sides, lifting frame guide rails are respectively arranged at the front sides of the upright posts, the lifting frame is arranged between the lifting frame guide rails at the two sides, a chain wheel shaft is arranged right above the lifting frame guide rails, two lifting chain wheels are arranged on the chain wheel shaft at intervals, the lifting chain is respectively connected with the balancing weight and the lifting frame at the rear two ends of the lifting chain crossing the lifting chain wheels, a speed reducer is arranged at the top of the well, a brake motor is arranged at the input end of the speed reducer, a driving chain wheel is arranged at the output end of the speed reducer, a driven chain wheel corresponding to the driving chain wheel is arranged on the chain wheel shaft, the driving chain wheel and the driven chain wheel are connected linearly by the electric control device to realize the lifting control of the lift car, the lift frame guide rail is an L-shaped guide rail, the left and right limiting devices are arranged on two sides of the lift frame and comprise a second roller seat and a second roller, the second roller seat is fixed on the upper part and the lower part of the lift frame by adopting a second bolt, the second roller is arranged on the second roller seat and corresponds to the position of the tail end of the L-shaped guide rail, a wheel groove is concavely arranged on the outer circle of the second roller, the tail end of the L-shaped guide rail extends into the wheel groove, the lift shaft also comprises a door frame and two side wall plates, the wall plates are respectively arranged on the outer side surfaces of the upright posts and extend forwards, the door frame is arranged at the front end of the wall plate at the upper and lower intervals, the front of the lift car is of an open structure, the elevator car is characterized in that light curtain emitting devices and light curtain receiving devices are oppositely arranged on two sides of the front opening of the elevator car, the light curtain emitting devices and the light curtain receiving devices are respectively connected with an electric control device, a side by side door is arranged in a door frame, a baffle plate extending downwards is arranged on the top of the back of the door frame, limiting of the side by side door is carried out, a first electromagnet pointing to the side by side door is respectively arranged on the top and the bottom of the door frame, a positioning hole is arranged on the top of the side by side door, a positioning column extending to the positioning hole is arranged at the bottom of the first electromagnet, a permanent magnet is arranged on the back of the side by side, a magnetic switch opposite to the permanent magnet is arranged on the elevator car, the magnetic switch is in linear connection with the electric control device, the electric control device comprises an in-box switch arranged in the elevator car and an out-box switch arranged on the door frame, a speed sensor extending to the position of an elevator chain is arranged in the elevator shaft, a chain wheel meshed with the elevator chain is arranged on the speed sensor, the speed sensor is in linear connection with the electric control device, an anti-falling mechanism is arranged on the elevator car, the anti-falling mechanism corresponds to the second electromagnet and the second electromagnet is arranged on the elevator car, and corresponds to the second electromagnet, and the second electromagnet is arranged on the elevator car, and the second electromagnet is in the elevator car, and the elevator car is correspondingly arranged on the elevator car, and the elevator car is in the elevator car.
2. The compact home multi-layered micro vertical lift elevator of claim 1, wherein the counterweight guide rail and the upright are each C-channel.
3. The compact structure of claim 1, wherein the front and rear limiting devices are arranged on two sides of the lifting frame, the front and rear limiting devices comprise first roller seats and first rollers, the first roller seats are fixed on the side surface of the lifting frame by first bolts, and the two first rollers are arranged on the first roller seats and positioned in front of and behind the tail ends of the L-shaped guide rails.
4. The compact home multi-layered miniature vertical lift elevator of claim 1, wherein an oil box extending to the position of the lifting chain is provided in the hoistway, an oil-impregnated sponge is provided in the oil box, and a through hole corresponding to the lifting chain is provided in the oil-impregnated sponge.
5. The compact home multi-story, miniature vertical lift elevator of claim 1 wherein said hoistway bottom is provided with a shock pad below the car.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910230086.XA CN109823943B (en) | 2019-03-26 | 2019-03-26 | Domestic multilayer miniature vertical lifting elevator with compact structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910230086.XA CN109823943B (en) | 2019-03-26 | 2019-03-26 | Domestic multilayer miniature vertical lifting elevator with compact structure |
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| CN109823943A CN109823943A (en) | 2019-05-31 |
| CN109823943B true CN109823943B (en) | 2024-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910230086.XA Active CN109823943B (en) | 2019-03-26 | 2019-03-26 | Domestic multilayer miniature vertical lifting elevator with compact structure |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104071677A (en) * | 2014-07-14 | 2014-10-01 | 吴岂凡 | Elevator |
| CN204728839U (en) * | 2015-05-13 | 2015-10-28 | 陕西科技大学 | A kind of subway sliding door locks |
| CN204737563U (en) * | 2015-06-25 | 2015-11-04 | 中建八局第三建设有限公司 | Job site elevator connects material platform guard gate |
| CN206069149U (en) * | 2016-08-31 | 2017-04-05 | 河北东方富达机械有限公司 | A kind of elastic rolling leads boots |
| CN206927151U (en) * | 2017-05-12 | 2018-01-26 | 新兴铸管股份有限公司 | A kind of bucket elevator hang-up warning device |
| CN207698958U (en) * | 2017-12-05 | 2018-08-07 | 余廷栋 | A kind of elevator drop preventer |
| CN209721288U (en) * | 2019-03-26 | 2019-12-03 | 常熟市西克玛机械有限公司 | A kind of compact-sized household multi-layer mini-type vertical-lift elevator |
-
2019
- 2019-03-26 CN CN201910230086.XA patent/CN109823943B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104071677A (en) * | 2014-07-14 | 2014-10-01 | 吴岂凡 | Elevator |
| CN204728839U (en) * | 2015-05-13 | 2015-10-28 | 陕西科技大学 | A kind of subway sliding door locks |
| CN204737563U (en) * | 2015-06-25 | 2015-11-04 | 中建八局第三建设有限公司 | Job site elevator connects material platform guard gate |
| CN206069149U (en) * | 2016-08-31 | 2017-04-05 | 河北东方富达机械有限公司 | A kind of elastic rolling leads boots |
| CN206927151U (en) * | 2017-05-12 | 2018-01-26 | 新兴铸管股份有限公司 | A kind of bucket elevator hang-up warning device |
| CN207698958U (en) * | 2017-12-05 | 2018-08-07 | 余廷栋 | A kind of elevator drop preventer |
| CN209721288U (en) * | 2019-03-26 | 2019-12-03 | 常熟市西克玛机械有限公司 | A kind of compact-sized household multi-layer mini-type vertical-lift elevator |
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| CN109823943A (en) | 2019-05-31 |
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