CN112645181A - Well lift is used in construction - Google Patents
Well lift is used in construction Download PDFInfo
- Publication number
- CN112645181A CN112645181A CN202110140803.7A CN202110140803A CN112645181A CN 112645181 A CN112645181 A CN 112645181A CN 202110140803 A CN202110140803 A CN 202110140803A CN 112645181 A CN112645181 A CN 112645181A
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- Prior art keywords
- guide wheel
- traction
- hoistway
- top beam
- building
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- Pending
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- 238000010276 construction Methods 0.000 title claims abstract description 30
- 239000000725 suspension Substances 0.000 claims abstract description 25
- 230000007246 mechanism Effects 0.000 claims description 11
- 230000007306 turnover Effects 0.000 claims description 11
- 230000000903 blocking effect Effects 0.000 claims description 9
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 230000006698 induction Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 230000006872 improvement Effects 0.000 description 12
- 238000010586 diagram Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures
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- 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
- B66B11/0035—Arrangement of driving gear, e.g. location or support
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- 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
- B66B11/0065—Roping
- B66B11/0075—Roping with hoisting rope or cable positively attached to a winding drum
-
- 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
- B66B11/0065—Roping
- B66B11/008—Roping with hoisting rope or cable operated by frictional engagement with a winding drum or sheave
-
- 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
- B66B13/06—Door or gate operation of sliding doors
- B66B13/08—Door or gate operation of sliding doors guided for horizontal movement
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- 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
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- 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
- B66B13/16—Door or gate locking devices controlled or primarily controlled by condition of cage, e.g. movement or position
- B66B13/18—Door or gate locking devices controlled or primarily controlled by condition of cage, e.g. movement or position without manually-operable devices for completing locking or unlocking of doors
- B66B13/185—Door or gate locking devices controlled or primarily controlled by condition of cage, e.g. movement or position without manually-operable devices for completing locking or unlocking of doors electrical
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- 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
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
- B66B5/044—Mechanical overspeed governors
Abstract
The invention discloses a construction hoistway lifter, which comprises a building hoistway, a top beam, a traction medium, a traction machine, a suspension cage and a counterweight; the top beam is connected to the top end of a building well, and the traction machine is connected to the lower portion of the building well; the top beam is fixedly connected with a friction wheel, and a second guide wheel, a third guide wheel, a fourth guide wheel and a fifth guide wheel are rotatably connected with the top beam; one end of the traction medium is connected with one end of the top beam, the traction medium sequentially bypasses the friction wheel, the suspension cage, the second guide wheel, the third guide wheel, the driving wheel of the traction machine, the fourth guide wheel, the fifth guide wheel and the counterweight from the end, and the other end of the traction medium is connected with the bottom surface of the other end of the top beam. The construction hoistway lifter provided by the invention has the advantages that the cage is positioned at the movable pulley by adopting the guide wheels and the traction medium, so that the traction capacity of the traction machine is doubled, the traction efficiency is improved, and the operation safety of the lifter is improved.
Description
Technical Field
The invention relates to the field of construction elevators, in particular to a hoistway elevator for construction.
Background
The construction elevator is a construction machine which adopts a gear and rack meshing mode or a steel wire rope lifting mode to make a lift car move vertically or obliquely and is used for conveying constructors, tools, equipment and materials.
However, the traction capacity of the existing traction machine can only lift the car by one time, the lifting efficiency is low, and in addition, the car often shakes in the actual carrying process, so that the operation is unstable.
Disclosure of Invention
Aiming at one or more of the defects or the improvement requirements in the prior art, the invention provides a construction hoistway lifter, wherein a cage adopts a movable pulley structure, so that the traction capacity of the lifter can be improved, and the lifting efficiency of the lifter can be improved.
In order to achieve the purpose, the invention provides a construction hoistway lifter, which comprises a building hoistway, a top beam, a traction medium, a traction machine, a suspension cage and a counterweight; the top beam is connected to the top end of a building well, and the traction machine is connected to the lower portion of the building well; the top beam is fixedly connected with a friction wheel, and a second guide wheel, a third guide wheel, a fourth guide wheel and a fifth guide wheel are rotatably connected with the top beam; one end of the traction medium is connected with one end of the top beam, the traction medium sequentially bypasses the friction wheel, the suspension cage, the second guide wheel, the third guide wheel, the driving wheel of the traction machine, the fourth guide wheel, the fifth guide wheel and the counterweight from the end, and the other end of the traction medium is connected with the bottom surface of the other end of the top beam.
As a further improvement of the invention, the friction wheel is positioned at one end of the top beam, the second guide wheel, the third guide wheel, the fourth guide wheel and the fifth guide wheel are positioned at the other end of the top beam, the second guide wheel and the fourth guide wheel are arranged in parallel, the third guide wheel is positioned above the fourth guide wheel, and the fifth guide wheel is positioned below the fourth guide wheel.
As a further improvement of the invention, the top ends of the cage and the counterweight are respectively provided with a guide wheel, and the traction medium bypasses the guide wheels of the cage and the counterweight.
As a further improvement of the invention, the top beam is connected at one of the entrances and exits of the top end of the building shaft; the bottom one side of building well is equipped with the hole of stepping down, and the hauler is connected in the outside of building well and is set up with the hole of stepping down correspondingly.
As a further improvement of the invention, the top beam comprises a hoisting rope unreeling device and two cross beams arranged at intervals, a longitudinal beam is connected between the two cross beams, two ends of the two cross beams are respectively lapped on floors at which an entrance and an exit of a building hoistway are located, the hoisting rope unreeling device is positioned at one end of the two cross beams, one end of a dragging medium is wound on the hoisting rope unreeling device, and the hoisting rope unreeling device is used for unreeling the dragging medium.
As a further improvement of the invention, the traction medium specifically adopts a traction rope or a traction chain; the traction machine is specifically a permanent magnet synchronous traction machine.
As a further improvement of the invention, the suspension cage and the counterweight are respectively connected in the hoistway of the building in a sliding way through slide rails, and the slide rails are respectively positioned at two sides of the suspension cage and the counterweight.
As a further improvement of the invention, the elevator car further comprises a speed limiter safety gear device and a speed limiting rope unwinding device, wherein the speed limiter safety gear device is connected to one side of a building well, the speed limiting rope unwinding device is connected to the top surface of the suspension cage, and one end of a speed limiting rope of the speed limiter safety gear device is wound on the speed limiting rope unwinding device.
As a further improvement of the invention, the building hoistway at the entrance and exit of each floor is connected with an opening and closing door structure, and the opening and closing door structure comprises a turnover clamping plate and a first door and a second door which are connected to the entrance and exit of each floor through hinges; the first door is connected with a telescopic blocking mechanism, an induction in-place module and a clamping column; one end of the turnover clamping plate is hinged to the second door, the other end of the turnover clamping plate is provided with a clamping groove, and the clamping groove and the clamping column are correspondingly arranged.
As a further improvement of the invention, the telescopic blocking mechanism adopts a cylinder or an electric cylinder; the sensing in-place module adopts a proximity sensor or a laser sensor.
The above-described improved technical features may be combined with each other as long as they do not conflict with each other.
Generally, compared with the prior art, the above technical solution conceived by the present invention has the following beneficial effects:
1. the invention relates to a construction hoistway lifter, which adopts a plurality of guide wheels and traction media to enable a suspension cage to be positioned at a movable pulley, so that the traction capacity of a traction machine is doubled, and the traction efficiency is improved.
2. The construction hoistway lifter adopts an opening and closing door structure, and is in linkage control with a car to open and close an entrance and an exit of each floor, so that the safe operation in a hoistway is ensured.
3. According to the construction hoistway lifter, the traction machine is arranged outside the hoistway, so that the occupation of the hoistway space is avoided.
4. The construction hoistway lifter adopts the speed limiter safety tongs device to ensure the safety operation of the lifter.
Drawings
Fig. 1 is a first angular view of a construction hoistway elevator in accordance with an embodiment of the present invention;
fig. 2 is a second angular view of a construction hoistway elevator in accordance with an embodiment of the present invention;
fig. 3 is a partial structural view of a construction hoistway lifter according to an embodiment of the present invention;
FIG. 4 is a block diagram of a cage and a smooth auxiliary moving mechanism in an embodiment of the present invention;
fig. 5 is another partial structural view of a construction hoistway lifter according to an embodiment of the present invention;
FIG. 6 is a partial block diagram of FIG. 5;
FIG. 7 is an isometric view of the opening and closing door structure of the present invention;
FIG. 8 is an enlarged view of portion A of FIG. 7;
fig. 9 is a structural view of another embodiment of a construction hoistway lifter according to an embodiment of the present invention;
in all the figures, the same reference numerals denote the same features, in particular: 1. a building hoistway; 11. a hole of abdication; 2. a top beam; 21. a cross beam; 22. a stringer; 23. a hoist rope unwinding device; 3. dragging media; 4. a traction machine; 5. a suspension cage; 6. a counterweight; 7. a governor safety gear device; 71. a speed limiting rope unwinding device; 81. a friction wheel; 82. a second guide wheel; 83. a third guide wheel; 84. a fourth guide wheel; 85. a fifth guide wheel; 9. a door opening and closing structure; 91. a first door; 92. a second door; 93. turning over the clamping plate; 94. a telescoping barrier mechanism; 95. a sensing in-place module; 96. clamping the column; 97. a clamping groove.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
A construction hoistway elevator in a preferred embodiment of the present invention, as shown in fig. 1 to 8, includes a building hoistway 1, a top sill 2, a traction medium 3, a traction machine 4, a cage 5, and a counterweight 6; the top beam 2 is connected to the top end of the building hoistway 1, and the traction machine 4 is connected to the lower portion of the building hoistway 1; a friction wheel 81 is fixedly connected to the top beam 2, and a second guide wheel 82, a third guide wheel 83, a fourth guide wheel 84 and a fifth guide wheel 85 are rotatably connected to the top beam; one end of the traction medium 3 is connected to one end of the top beam 2, and the traction medium 3 sequentially bypasses the friction wheel 81, the suspension cage 5, the second guide wheel 82, the third guide wheel 83, the driving wheel of the traction machine 4, the fourth guide wheel 84, the fifth guide wheel 85 and the counterweight 6 from the end, and the other end of the traction medium 3 is connected to the bottom surface of the other end of the top beam 2.
The hoisting rope is wound five quarters of a turn or one and a half turns on the friction wheel 81. The friction wheel 81 is used for changing the stress direction of the traction medium 3 to the top beam 2, and meanwhile, the pulling force to the beam body is reduced through the friction force on the friction wheel 81, so that the structural stability is improved.
Wherein, the traction medium 3 is driven by the traction machine 4 to match with the counterweight 6, so as to drive the suspension cage 5 to lift; the suspension cage 5 is used for loading cargoes; the friction wheel 81, the second guide wheel 82, the third guide wheel 83, the fourth guide wheel 84, and the fifth guide wheel 85 are used to guide the traction medium 3 so that the traction medium 3 passes through the cage 5, the counterweight 6, and the traction machine 4; the traction machine 4 is used for drawing the cage 5.
Preferably, the friction wheel 81 is located at one end of the top beam 2, the second guide wheel 82, the third guide wheel 83, the fourth guide wheel 84 and the fifth guide wheel 85 are located at the other end of the top beam 2, the second guide wheel 82 and the fourth guide wheel 84 are arranged in parallel, the third guide wheel 83 is located above the fourth guide wheel 84, and the fifth guide wheel 85 is located below the fourth guide wheel 84.
The top ends of the suspension cage 5 and the counterweight 6 are both provided with guide wheels, and the traction medium 3 bypasses the guide wheels of the suspension cage 5 and the guide wheels of the counterweight 6. The top ends of the cage 5 and the counterweight 6 are provided with guide wheels for enabling the traction medium 3 to smoothly bypass the cage 5 and the counterweight 6.
The top beam 2 is connected to one of the entrances and exits at the top end of the building hoistway 1; building well 1's bottom one side is equipped with the hole of stepping down 11, and hauler 4 is connected in building well 1's the outside and corresponds the setting with the hole of stepping down 11, can avoid hauler 4 to set up the inside at building well 1 to occupy building well 1 inner space.
The top beam 2 comprises a hoisting rope unreeling device 23 and two cross beams 21 arranged at intervals, a longitudinal beam 22 is connected between the two cross beams 21, two ends of the two cross beams 21 are respectively lapped on a floor where an entrance and an exit of a building hoistway 1 are located, the hoisting rope unreeling device 23 is located at one end of each of the two cross beams 21, one end of a dragging medium 3 is wound on the hoisting rope unreeling device 23, and the hoisting rope unreeling device 23 is used for unreeling the dragging medium 23. The hauling rope unreeling device 23 is used for being placed at different height positions according to the top beam 2 so as to release the hauling media 3 with corresponding length, thereby enabling the elevator to be convenient to install and use.
Two ends of the two cross beams 21 are respectively placed on floors where the entrances and exits of the building hoistway 1 are located, the installation is convenient, and the top beam 2 can be placed at a proper position according to actual use requirements.
Wherein, the traction medium 3 specifically adopts a traction rope or a traction chain; the traction machine 4 is specifically a permanent magnet synchronous traction machine.
As a preferable scheme: the elevator car speed limiting device is characterized by further comprising a speed limiter safety gear device 7 and a speed limiting rope unwinding device 71, wherein the speed limiter safety gear device 7 is connected to one side of the building well 1, the speed limiting rope unwinding device 71 is connected to the top surface of the suspension cage 5, and one end of a speed limiting rope of the speed limiter safety gear device 7 is wound on the speed limiting rope unwinding device 71. The speed limiter safety gear device 7 is the prior art, and the improvement of the invention is that the speed limiting rope unwinding device 71 is added, so that the length of the speed limiter rope of the speed limiter safety gear device 7 can be adjusted, and the speed limiter safety gear device is suitable for being placed at different positions.
The building hoistway 1 is connected with an opening and closing door structure 9 at the entrance and exit of each floor, and the opening and closing door structure 9 comprises a turnover clamping plate 93 and a first door 91 and a second door 92 which are connected to the entrance and exit of each floor through hinges; the first door 91 is connected with a telescopic blocking mechanism 94, an in-place sensing module 95 and a clamping column 96; one end of the turnover clamping plate 93 is hinged to the second door 92, the other end of the turnover clamping plate is provided with a clamping groove 97, and the clamping groove 97 is arranged corresponding to the clamping column 96.
The sensing in-place module 95 is used for detecting whether the turnover clamping plate 93 is turned in place, namely whether the door opening and closing mechanism 9 is closed, so as to transmit a signal to the control module of the lifter; the clamping groove 97 of the turnover clamping plate 93 is used for being matched with the clamping column 96 to open or close the opening and closing door; when the telescopic blocking mechanism 94 extends out, the overturning blocking plate 93 is blocked to prevent overturning.
The telescopic blocking mechanism 94 adopts an air cylinder or an electric cylinder; the in-place sensing module 95 employs a proximity sensor or a laser sensor.
Referring to fig. 1 and 9, the counterweight 6 may be located adjacent to or on an opposite side of an entrance/exit of the building hoistway 1, and is specifically configured according to the size of the interior of the building hoistway 1.
The working principle is as follows: the equipment is installed in a well of a building for use, when in use, the traction medium 3 is driven by the positive and negative rotation of the traction machine 4 so as to drive the suspension cage 5 to move up and down (because the suspension cage 5 is positioned at a position similar to a movable pulley, after the traction medium 3 is driven by the traction machine 4 to move for a distance, the suspension cage 5 can move for a double distance); when the cage 5 is moved to a desired floor, the control module of the elevator controls the retraction blocking mechanism 94 to retract and then turns the turning catch plate 93 open, thereby opening the opening and closing door.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A construction hoistway elevator comprises a building hoistway (1), a top beam (2), a traction medium (3), a traction machine (4), a suspension cage (5) and a counterweight (6); the method is characterized in that: the top beam (2) is connected to the top end of the building hoistway (1), and the traction machine (4) is connected to the lower portion of the building hoistway (1); a friction wheel (81) is fixedly connected to the top beam (2), and a second guide wheel (82), a third guide wheel (83), a fourth guide wheel (84) and a fifth guide wheel (85) are rotatably connected to the top beam; one end of the traction medium (3) is connected with one end of the top beam (2), the traction medium (3) sequentially bypasses the friction wheel (81), the suspension cage (5), the second guide wheel (82), the third guide wheel (83), the driving wheel of the traction machine (4), the fourth guide wheel (84), the fifth guide wheel (85) and the counterweight (6) from the end, and the other end of the traction medium (3) is connected with the bottom surface of the other end of the top beam (2).
2. A construction hoistway lifter according to claim 1, characterized in that: the friction wheel (81) is located at one end of the top beam (2), the second guide wheel (82), the third guide wheel (83), the fourth guide wheel (84) and the fifth guide wheel (85) are located at the other end of the top beam (2), the second guide wheel (82) and the fourth guide wheel (84) are arranged in parallel, the third guide wheel (83) is located above the fourth guide wheel (84), and the fifth guide wheel (85) is located below the fourth guide wheel (84).
3. A construction hoistway lifter according to claim 2, wherein: the top ends of the suspension cage (5) and the counterweight (6) are respectively provided with a guide wheel, and the traction medium (3) bypasses the guide wheels of the suspension cage (5) and the counterweight (6).
4. A construction hoistway lifter according to claim 1, characterized in that: the top beam (2) is connected to one of the entrances and exits at the top end of the building hoistway (1); the building shaft (1) is characterized in that a yielding hole (11) is formed in one side of the bottom of the building shaft (1), and the traction machine (4) is connected to the outer side of the building shaft (1) and is arranged corresponding to the yielding hole (11).
5. The construction hoistway elevator according to claim 4, wherein: the hoisting rope unwinding device is characterized in that the top beam (2) comprises a hoisting rope unwinding device (23) and two beams (21) arranged at intervals, a longitudinal beam (22) is connected between the beams (21), two ends of the beams (21) are respectively placed on a floor where an entrance and an exit of a building hoistway (1) are located, the hoisting rope unwinding device (23) and one end of each beam (21) are located, one end of a traction medium (3) is wound on the hoisting rope unwinding device (23), and the hoisting rope unwinding device (23) is used for unwinding the traction medium (23).
6. A construction hoistway lifter according to claim 5, wherein: the traction medium (3) is a traction rope or a traction chain; the traction machine (4) is a permanent magnet synchronous traction machine.
7. A construction hoistway lifter according to claim 1, characterized in that: the suspension cage (5) and the counterweight (6) are slidably connected in the building hoistway (1) through slide rails respectively, and the slide rails are located on two sides of the suspension cage (5) and the counterweight (6) respectively.
8. The construction hoist according to any one of claims 1 to 7, wherein: the elevator car elevator speed limiting device is characterized by further comprising a speed limiting safety gear device (7) and a speed limiting rope unwinding device (71), wherein the speed limiting safety gear device (7) is connected to one side of the building hoistway (1), the speed limiting rope unwinding device (71) is connected to the top surface of the suspension cage (5), and one end of a speed limiting rope of the speed limiting safety gear device (7) is wound on the speed limiting rope unwinding device (71).
9. The construction hoist according to any one of claims 1 to 7, wherein: the building hoistway (1) is connected with an opening and closing door structure (9) at the entrance and exit of each floor, and the opening and closing door structure (9) comprises a turnover clamping plate (93) and a first door (91) and a second door (92) which are connected to the entrance and exit of each floor through hinges; the first door (91) is connected with a telescopic blocking mechanism (94), an induction in-place module (95) and a clamping column (96); one end of the turnover clamping plate (93) is hinged to the second door (92), the other end of the turnover clamping plate is provided with a clamping groove (97), and the clamping groove (97) is arranged corresponding to the clamping column (96).
10. A construction hoistway lifter according to claim 9, wherein: the telescopic blocking mechanism (94) adopts an air cylinder or an electric cylinder; the sensing in-place module (95) adopts a proximity sensor or a laser sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110140803.7A CN112645181A (en) | 2021-02-02 | 2021-02-02 | Well lift is used in construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110140803.7A CN112645181A (en) | 2021-02-02 | 2021-02-02 | Well lift is used in construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112645181A true CN112645181A (en) | 2021-04-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110140803.7A Pending CN112645181A (en) | 2021-02-02 | 2021-02-02 | Well lift is used in construction |
Country Status (1)
| Country | Link |
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| CN (1) | CN112645181A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113526311A (en) * | 2021-06-28 | 2021-10-22 | 嘉世达电梯有限公司 | Large-tonnage traction machine with self-locking protection function for elevator |
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| CN210214481U (en) * | 2019-09-04 | 2020-03-31 | 歌拉瑞电梯股份有限公司 | Shaft elevator for construction with traction machine arranged below |
| CN111039130A (en) * | 2020-01-20 | 2020-04-21 | 河南省川达建筑机械有限公司 | Bearing beam self-elevating hoistway construction elevator |
| CN214569934U (en) * | 2021-02-02 | 2021-11-02 | 杭州百科新材料有限公司 | Well lift is used in construction |
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2021
- 2021-02-02 CN CN202110140803.7A patent/CN112645181A/en active Pending
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|---|---|---|---|---|
| CN101301978A (en) * | 2008-07-07 | 2008-11-12 | 西子奥的斯电梯有限公司 | Non-counterweight elevator system |
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| WO2015007769A1 (en) * | 2013-07-17 | 2015-01-22 | Aip Aps | Elevator system |
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| CN113526311B (en) * | 2021-06-28 | 2023-02-03 | 嘉世达电梯有限公司 | Large-tonnage traction machine with self-locking protection function for elevator |
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