CN110217676B - Automatic door device of construction elevator - Google Patents
Automatic door device of construction elevator Download PDFInfo
- Publication number
- CN110217676B CN110217676B CN201910485663.XA CN201910485663A CN110217676B CN 110217676 B CN110217676 B CN 110217676B CN 201910485663 A CN201910485663 A CN 201910485663A CN 110217676 B CN110217676 B CN 110217676B
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- elevator
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- door plate
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- 238000010276 construction Methods 0.000 title claims abstract description 24
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 8
- 239000010959 steel Substances 0.000 claims abstract description 8
- 230000005540 biological transmission Effects 0.000 claims description 18
- 238000000926 separation method Methods 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 5
- 230000005484 gravity Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 241000283984 Rodentia Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/02—Cages, i.e. cars
- B66B11/0226—Constructional features, e.g. walls assembly, decorative panels, comfort equipment, thermal or sound insulation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
- B66B13/02—Door or gate operation
- B66B13/14—Control systems or devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
- B66B13/02—Door or gate operation
- B66B13/14—Control systems or devices
- B66B13/143—Control systems or devices electrical
- B66B13/146—Control systems or devices electrical method or algorithm for controlling doors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
- B66B13/30—Constructional features of doors or gates
- B66B13/306—Details of door jambs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Elevator Door Apparatuses (AREA)
- Power-Operated Mechanisms For Wings (AREA)
Abstract
An automatic door device of a construction elevator comprises an elevator main body, external up-down buttons, internal floor buttons, corresponding power devices and an automatic door device; the automatic door device comprises an upper door plate, a lower door plate, two connecting rods, two gear rods and two groups of pulley blocks, wherein the upper door plate is slidably arranged on the elevator main body, and the lower door plate is correspondingly hinged to the bottom of the elevator main body and can rotate; the two connecting rods and the two gear rods are respectively slidably mounted inside the elevator side plates, the connecting rods are hinged with the gear rods, and the other ends of the connecting rods are hinged with the two sides of the lower door plate; the two groups of pulley blocks comprise upper fixed pulleys and lower fixed pulleys, and two sides of the bottom of the upper door plate are respectively connected with two sides of the lower door plate after bypassing the upper fixed pulleys and the lower fixed pulleys through two steel wire ropes; the automatic door device further comprises a driving device, and the driving device is provided with two sets of automatic door devices which are respectively arranged inside the left and right elevator side plates of the elevator main body and are matched with the gear rods to open and close the construction elevator.
Description
Technical Field
The invention belongs to the field of construction elevators, and particularly relates to an automatic door device of a construction elevator.
Background
With the development of construction industry, high-rise buildings are in numerous floors, construction elevators become one of the main tools for vertical transportation in construction sites, generally, construction elevators use side-sliding folding doors which are opened and closed manually, the sliding folding doors are often clamped due to the fact that materials often fall off in the current construction process, and the doors of the elevator are inconvenient to open and close during material transportation; in addition, the situation that the elevator door is blocked and cannot be started can often occur, the use progress is influenced, and the safety of elevator taking personnel is threatened by using the electric two-side door opening and closing device. In addition, the general construction elevator can not laminate the construction wall completely, and there is certain spacing distance between the two, because of this spacing distance's existence, takes place the material very easily when business turn over elevator transportation construction material and drops or the condition that constructor careless card in the interval gap.
Disclosure of Invention
The invention aims to improve the safety of the existing construction elevator for entering and exiting floors, reduce the incidence rate of high-altitude falling and object striking and improve the efficiency of the construction elevator.
In order to achieve the purpose, the invention adopts the following technical scheme:
an automatic door device of a construction elevator comprises an elevator main body, a master control system, external upper and lower buttons, internal floor buttons and corresponding power devices, and also comprises an automatic door device; wherein,
the automatic door device comprises an upper door plate, a lower door plate, two connecting rods, two gear rods and two groups of pulley blocks which are arranged inside left and right elevator side plates of an elevator main body, wherein the upper door plate is slidably arranged on the elevator main body, and the lower door plate is correspondingly hinged to the bottom of the elevator main body;
the two connecting rods are respectively installed inside the left and right elevator side plates of the elevator main body, the two gear rods are respectively installed inside the left and right elevator side plates of the elevator main body in a sliding mode, the two connecting rods are respectively hinged with the two gear rods, and the other ends of the two connecting rods are respectively hinged with two sides of the lower door plate;
the two groups of pulley blocks are respectively arranged inside the left and right elevator side plates of the elevator main body and comprise upper fixed pulleys and lower fixed pulleys, and two sides of the bottom of the upper door plate are respectively connected with two sides of the lower door plate after bypassing the upper fixed pulleys and the lower fixed pulleys through two steel wire ropes;
the automatic door device further comprises a driving device, and the driving device is provided with two sets of automatic door devices which are respectively installed inside the left and right elevator side plates of the elevator main body and are opened and closed under the matching action of the gear rods.
Further, the driving device comprises a driving motor, a power gear and a transmission gear, the power gear is installed on an output shaft of the driving motor, and the transmission gear is meshed with the power gear and the gear rod; the power gear is provided with the gear safety cover with the drive gear outside, gear safety cover both sides are provided with two stop keys, gear pole both ends are provided with the separation blade, the touch of stop key behind the separation blade driving motor stall.
Further, drive gear installs on a dwang, dwang slidable mounting be in on the elevator curb plate of elevator main part left and right sides, on the dwang with drive gear relative one side, elevator curb plate both sides are provided with two baffles, inside the elevator main part the baffle with be provided with the detachable buckle between the elevator curb plate.
Furthermore, the buckle is removed, the rotating rod is pushed to the outer side of the elevator, and the transmission gear is separated from the power gear and the gear rod; and the rotating rod is pulled towards the inner side of the elevator, and the transmission gear is meshed with the power gear and the gear rod.
Furthermore, square frame type armrests are installed on two sides of the inner wall of the lower door panel.
When the automatic door device is opened, the driving device drives the gear rod to move towards the outer side of the elevator main body, the gear rod pushes the connecting rod to further push the lower door plate to rotate and lay flat towards the outer side of the elevator, the lower door plate is contacted with the building concrete structure beam plate to form a walkway plate, the lower door plate drives the upper door plate to move upwards through the steel wire rope, and the elevator is opened;
when the automatic door device is closed, the driving device drives the gear rod to move towards the inner side of the elevator main body, the gear rod drives the connecting rod to further drive the lower door plate to rotate towards the inner side of the elevator, the upper door plate falls under the action of gravity and is overlapped with the lower door plate, and the elevator is closed.
The invention has the beneficial effects that:
1. according to the invention, an up-down door opening design is adopted, the upper door plate is driven to achieve the effect of opening and closing the door of the elevator through the overturning of the lower door plate, and the lower door plate is in contact with the building concrete structure beam plate after being overturned and laid flat to form the walkway plate, so that a constructor can be prevented from being clamped in a gap between the elevator and the building, and a material can be prevented from falling from the gap to injure the constructor at the lower part.
2. The square frame type handrails are installed on two sides of the inner wall of the lower door plate, and when the lower door plate is turned over and placed normally, the square frame type handrails are turned over along with the door plate to form walkway handrails, so that the protection effect is further achieved. In addition, when the driving motor breaks down, the elevator door can be opened and closed by pushing the square handrail, so that the elevator door can be effectively prevented from being locked.
3. When the door is closed, the upper door plate falls down by the self weight, so that the power consumption of the driving motor can be reduced.
Drawings
FIG. 1 is a schematic view of the overall structure of the door closing state of the present invention;
FIG. 2 is a schematic view of the overall structure of the door opening state of the present invention;
FIG. 3 is a schematic view of a driving device according to the present invention;
FIG. 4 is a side view of the driving device of the present invention, wherein 4a is a diagram showing a state where the transmission gear is engaged with the power gear, and 4b is a diagram showing a state where the transmission gear is disengaged from the power gear;
FIG. 5 is a view showing a connection structure of a gear lever and a connecting rod;
in the figure: the device comprises a fixed pulley 1, a steel wire rope 2, an upper door plate 3, a blocking piece 4, a gear rod 5, a gear protection cover 6, a connecting rod 7, a lower door plate 8, a square frame type handrail 9, a transmission gear 10, a stop key 11, a high-strength screw rod 12, a high-strength nut 13, a concrete structure beam plate 14, a power gear 15, a buckle 16, a handle 17, a blocking piece 18, an elevator side plate 19 and a driving motor 20.
Detailed Description
The invention is further described with reference to the accompanying drawings and the detailed description.
Referring to fig. 1 and 2, the automatic door device of the construction elevator comprises an elevator body, external up-down buttons, internal floor buttons, corresponding power devices and an automatic door device.
Automatic door device includes door plant 3, lower door plant 2, two connecting rods 7, two gear rods 5 and installs two sets of assembly pulleys in elevator curb plate 19 inside about the elevator main part, gear rods 5 are provided with the rodent, go up door plant 3 slidable mounting in the elevator main part, it slides about the elevator main part and its upper portion can surpass elevator main part upper end, door plant 2 corresponds the articulated installation down elevator main part bottom, door plant 2 can rotate around its articulated department with the elevator main part down, and its turned angle is 90 preferably.
The two connecting rods 7 are respectively installed inside left and right elevator side plates 19 of the elevator main body, and they can respectively slide obliquely along the inner space of the elevator side plates 19. The two gear rods 5 are respectively installed inside the left and right elevator side plates 19 of the elevator main body in a sliding mode, are symmetrically arranged in the elevator side plates 19 and are all parallel to the floor of the elevator main body all the time. One ends of the two connecting rods 7 are respectively hinged with the two gear rods 5, and the other ends of the two connecting rods are respectively hinged with two sides of the lower door plate 8. As shown in fig. 5, the connecting rod 7 is hinged to the gear rod 5 through a high-strength screw 12 and a high-strength nut 13. The lower door plate 8 is provided with side lugs, through holes are formed in the side lugs, and the connecting rod 7 is hinged to the lower door plate 8 through a high-strength screw rod 12 and a high-strength nut 13.
The two groups of pulley blocks are respectively arranged inside left and right elevator side plates 19 of an elevator main body and comprise upper fixed pulleys 1 and lower fixed pulleys 1, two sides of the bottom of the upper door plate 3 are respectively connected with two sides of the lower door plate 8 after bypassing the upper fixed pulleys 1 and the lower fixed pulleys 1 through two steel wire ropes 2, and therefore the lower door plate 8 and the upper door plate 3 are in linkage relation.
The automatic door device further comprises a driving device, and the driving device is provided with two sets of automatic door devices which are respectively installed inside the left and right elevator side plates 19 of the elevator main body and are matched with the gear rod 5 to open and close the construction elevator automatic door device. The driving device comprises a driving motor 20, a power gear 15 and a transmission gear 10, wherein the power gear 15 is installed on an output shaft of the driving motor 20, the driving motor 20 is fixedly installed inside the elevator side plate 19 and cannot move, and the transmission gear 10 is meshed with the power gear 15 and the gear rod 5. As shown in fig. 4, the transmission gear 10 is installed on a rotating rod, the rotating rod is slidably installed on the elevator side plates 19 on the left and right of the elevator main body, one side of the rotating rod opposite to the transmission gear 10 is provided with two baffles 18 on two sides of the elevator side plates 19, the baffles 16 limit the distance between the rotating rod and the left and right of the rotating rod, and the detachable buckle 16 is arranged between the baffles 18 and the elevator side plates 19 inside the elevator main body. When the buckle 16 is removed and the rotating rod is pushed to the outside of the elevator, the transmission gear 10 is separated from the power gear 15 and the gear rod 5, and the gear rod 5 can freely slide and is not limited by the driving motor 20; the rotating rod is pulled towards the inner side of the elevator, the transmission gear 10 is meshed with the power gear 15 and the gear rod 5, and at the moment, the sliding of the gear rod 5 is limited by the driving motor 20. The one end that the dwang is located elevator main part inside is provided with handle 17, conveniently pushes and pulls the dwang, simultaneously preferably, handle 17 is outside the safety cover can be opened in the installation on the elevator curb plate 19, and handle 17 injures people when preventing the dwang rotation.
The power gear 15 is provided with gear protection cover 6 with drive gear 10 outside, gear protection cover both sides are provided with two stop keys 11, stop key 11 is connected and is connected with elevator operation active system's circuit through circuit and driving motor 20, 5 both ends of gear pole are provided with separation blade 4, stop key 11 touching behind the separation blade 4 driving motor 20 stall. The stop key 11 is similar to a household electric dual-control switch, and belongs to the prior art, and those skilled in the art can easily know that the arrangement is not specifically described here. And it should be understood that the general automatic door opening and closing elevators are provided with a main control system, which is common knowledge and not specifically described herein, and the main control system controls the driving motor 20 to rotate forward or backward.
Referring to fig. 1 and 2, square handrails 9 are mounted on two sides of the inner wall of the lower door panel 8, the square handrails 9 can rotate together with the lower door panel 8, and the two can be connected by welding. After the elevator door is closed, the square frame type handrail 9 is positioned inside the elevator, and after the elevator door is opened, the square frame type handrail is positioned outside the elevator to form a walkway handrail.
The working principle is as follows: as shown in fig. 1 and 2, when the automatic door device opens the door, the driving device drives the gear rod 5 to move to the outside of the elevator main body, the gear rod 5 pushes the connecting rod 7 to further push the lower door panel 8 to rotate and lay flat to the outside of the elevator, at the moment, the lower door panel 8 is in contact with the building concrete structural beam 14 plate to form a walkway plate, the lower door panel 8 drives the upper door panel 3 to move upwards through the steel wire rope 2, and the elevator opens the door. When the gear rod 5 moves in place, the stop piece 4 at the left end touches the stop key 11 at the right side of the gear protection cover 6, and the driving motor stops running.
When the automatic door device is closed, the main control system gives a reverse signal to the driving motor, the driving device drives the gear rod 5 to move towards the inner side of the elevator main body, the gear rod 5 drives the connecting rod 7 to further drive the lower door plate 8 to rotate towards the inner side of the elevator, the upper door plate 3 falls under the action of gravity and is overlapped with the lower door plate 8, and the elevator is closed. When the gear rod 5 moves to the right position, the stop piece 4 at the right end touches the stop key 11 at the left side of the gear protection cover 6, and the driving motor stops running.
When the driving motor 20 fails and the door cannot be opened, the protective cover on the elevator side plate 14 is opened, the buckle 16 is taken off, the rotating rod can be pushed to separate the transmission gear 10 from the power gear 15 and the gear rod 5, and the square handrail 9 is manually pushed to open the elevator door.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a construction elevator automatically-controlled door device, includes elevator main part, major control system, outside about button, inside floor button and corresponding power device, its characterized in that: also comprises an automatic door device; wherein,
the automatic door device comprises an upper door plate, a lower door plate, two connecting rods, two gear rods and two groups of pulley blocks which are arranged inside left and right elevator side plates of an elevator main body, wherein the upper door plate is slidably arranged on the elevator main body, and the lower door plate is correspondingly hinged to the bottom of the elevator main body;
the two connecting rods are respectively installed inside the left and right elevator side plates of the elevator main body, the two gear rods are respectively installed inside the left and right elevator side plates of the elevator main body in a sliding mode, the two connecting rods are respectively hinged with the two gear rods, and the other ends of the two connecting rods are respectively hinged with two sides of the lower door plate;
the two groups of pulley blocks are respectively arranged inside the left and right elevator side plates of the elevator main body and comprise upper fixed pulleys and lower fixed pulleys, and two sides of the bottom of the upper door plate are respectively connected with two sides of the lower door plate after bypassing the upper fixed pulleys and the lower fixed pulleys through two steel wire ropes;
the automatic door device further comprises a driving device, and the driving device is provided with two sets of automatic door devices which are respectively installed inside the left and right elevator side plates of the elevator main body and are opened and closed under the matching action of the gear rods.
2. The automatic door device of a construction elevator according to claim 1, wherein: the driving device comprises a driving motor, a power gear and a transmission gear, the power gear is arranged on an output shaft of the driving motor, and the transmission gear is meshed with the power gear and the gear rod;
the power gear is provided with the gear safety cover with the drive gear outside, gear safety cover both sides are provided with two stop keys, gear pole both ends are provided with the separation blade, the touch of stop key behind the separation blade driving motor stall.
3. The automatic door device of a construction elevator according to claim 2, wherein: drive gear installs on a dwang, dwang slidable mounting be in on the elevator curb plate of elevator main part left and right sides, on the dwang with drive gear relative one side, elevator curb plate both sides are provided with two baffles, inside the elevator main part the baffle with be provided with the detachable buckle between the elevator curb plate.
4. The automatic door device of a construction elevator according to claim 3, wherein: the buckle is removed, the rotating rod is pushed to the outer side of the elevator, and the transmission gear is separated from the power gear and the gear rod; and the rotating rod is pulled towards the inner side of the elevator, and the transmission gear is meshed with the power gear and the gear rod.
5. The automatic door device of construction elevator according to claim 1, 2, 3 or 4, characterized in that: and square frame type handrails are arranged on two sides of the inner wall of the lower door plate.
6. The automatic door device of a construction elevator according to claim 5, wherein: when the automatic door device opens the door, the driving device drives the gear rod to move towards the outer side of the elevator main body, the gear rod pushes the connecting rod to further push the lower door plate to rotate and lay flat towards the outer side of the elevator, the lower door plate is in contact with the building concrete structure beam plate to form a walkway plate, the lower door plate drives the upper door plate to move upwards through the steel wire rope, and the elevator opens the door;
when the automatic door device is closed, the driving device drives the gear rod to move towards the inner side of the elevator main body, the gear rod drives the connecting rod to further drive the lower door plate to rotate towards the inner side of the elevator, the upper door plate falls under the action of gravity and is overlapped with the lower door plate, and the elevator is closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910485663.XA CN110217676B (en) | 2019-06-05 | 2019-06-05 | Automatic door device of construction elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910485663.XA CN110217676B (en) | 2019-06-05 | 2019-06-05 | Automatic door device of construction elevator |
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| Publication Number | Publication Date |
|---|---|
| CN110217676A CN110217676A (en) | 2019-09-10 |
| CN110217676B true CN110217676B (en) | 2021-10-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910485663.XA Active CN110217676B (en) | 2019-06-05 | 2019-06-05 | Automatic door device of construction elevator |
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| Country | Link |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5123929A (en) * | 1974-08-22 | 1976-02-26 | Tokyo Shibaura Electric Co | Erebeetano anzensochi |
| JPH09328274A (en) * | 1996-06-12 | 1997-12-22 | Mitsubishi Denki Bill Techno Service Kk | Door mechanism of elevator |
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| CN203246979U (en) * | 2013-01-24 | 2013-10-23 | 中建一局集团第二建筑有限公司 | Large gap bridge turning plate channel device of construction elevator |
| CN204529038U (en) * | 2015-04-01 | 2015-08-05 | 中建五局第三建设有限公司 | Construction elevator floor passageway integral type turns over a door system |
| CN205023680U (en) * | 2015-08-07 | 2016-02-10 | 中国建筑第八工程局有限公司 | Chain slat type construction elevator door |
| CN205076604U (en) * | 2015-09-29 | 2016-03-09 | 中国建筑第八工程局有限公司 | Connect springboard with adjustable between construction elevator and building structure |
| CN205527238U (en) * | 2016-04-08 | 2016-08-31 | 中建八局第二建设有限公司 | Move construction elevator who turns over board door with electricity |
| CN205973393U (en) * | 2016-08-11 | 2017-02-22 | 浙江景华建设有限公司 | Building construction elevator |
| CN206985489U (en) * | 2017-05-23 | 2018-02-09 | 浙江金隆古建园林工程有限公司 | A kind of construction elevator |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5711112A (en) * | 1996-09-03 | 1998-01-27 | Otis Elevator Company | Double-drive automatic sliding door operator |
| KR100965917B1 (en) * | 2008-03-28 | 2010-06-24 | 주식회사 리프텍 | door opening and closing apparatus in a industrial elevator |
-
2019
- 2019-06-05 CN CN201910485663.XA patent/CN110217676B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5123929A (en) * | 1974-08-22 | 1976-02-26 | Tokyo Shibaura Electric Co | Erebeetano anzensochi |
| JPH09328274A (en) * | 1996-06-12 | 1997-12-22 | Mitsubishi Denki Bill Techno Service Kk | Door mechanism of elevator |
| JPH10167637A (en) * | 1996-12-11 | 1998-06-23 | Mitsubishi Denki Bill Techno Service Kk | Dumbwaiter |
| JP2002029680A (en) * | 2000-07-12 | 2002-01-29 | Kuma Lift Kk | Dumbwaiter |
| CN203246979U (en) * | 2013-01-24 | 2013-10-23 | 中建一局集团第二建筑有限公司 | Large gap bridge turning plate channel device of construction elevator |
| CN204529038U (en) * | 2015-04-01 | 2015-08-05 | 中建五局第三建设有限公司 | Construction elevator floor passageway integral type turns over a door system |
| CN205023680U (en) * | 2015-08-07 | 2016-02-10 | 中国建筑第八工程局有限公司 | Chain slat type construction elevator door |
| CN205076604U (en) * | 2015-09-29 | 2016-03-09 | 中国建筑第八工程局有限公司 | Connect springboard with adjustable between construction elevator and building structure |
| CN205527238U (en) * | 2016-04-08 | 2016-08-31 | 中建八局第二建设有限公司 | Move construction elevator who turns over board door with electricity |
| CN205973393U (en) * | 2016-08-11 | 2017-02-22 | 浙江景华建设有限公司 | Building construction elevator |
| CN206985489U (en) * | 2017-05-23 | 2018-02-09 | 浙江金隆古建园林工程有限公司 | A kind of construction elevator |
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| Publication number | Publication date |
|---|---|
| CN110217676A (en) | 2019-09-10 |
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