CN110697545A - Construction elevator and installation method thereof - Google Patents
Construction elevator and installation method thereof Download PDFInfo
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- CN110697545A CN110697545A CN201910956318.XA CN201910956318A CN110697545A CN 110697545 A CN110697545 A CN 110697545A CN 201910956318 A CN201910956318 A CN 201910956318A CN 110697545 A CN110697545 A CN 110697545A
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- 238000010276 construction Methods 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims description 12
- 238000009434 installation Methods 0.000 title abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 120
- 239000010959 steel Substances 0.000 claims abstract description 120
- 230000003014 reinforcing effect Effects 0.000 claims description 22
- 230000000712 assembly Effects 0.000 claims description 10
- 238000000429 assembly Methods 0.000 claims description 10
- 238000005452 bending Methods 0.000 description 14
- 230000000694 effects Effects 0.000 description 4
- 238000005728 strengthening Methods 0.000 description 4
- 230000001174 ascending effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
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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
- B66B19/00—Mining-hoist operation
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
- Types And Forms Of Lifts (AREA)
Abstract
The invention discloses a construction elevator, which is arranged in a shaft, wherein a machine placing steel beam is arranged in the shaft, a traction machine, a guide wheel and a rope hitch plate are arranged on the machine placing steel beam, the traction machine is connected with a lift car and a counterweight device through a steel wire rope, a control cabinet is arranged in the shaft, the left side and the right side of the machine placing steel beam are respectively provided with a winch, the shaft walls on the left side and the right side of the shaft are respectively provided with a pull lug, the steel wire ropes on two winches are respectively connected with the pull lugs on the shaft walls, and the winches drive a machine placing rack to move up and down; put one side of quick-witted girder steel and be equipped with flexible subassembly, flexible subassembly extension supports in each layer door opening place flat bed face of well, the opposite side of putting the quick-witted girder steel is equipped with bracket support piece, bracket support piece lock is in establishing the bracket subassembly on the well wall. The construction elevator has the advantages that the construction elevator is simple and convenient to install, the automatic lifting of the machine placing frame improves the installation efficiency, and the safety coefficient is high.
Description
Technical Field
The invention relates to a lifter, in particular to a construction lifter and an installation method thereof.
Background
The construction elevator is called as a construction elevator for buildings, and can also be used as an outdoor elevator for lifting a cage in a construction site. However, when the construction elevator is used in the hoistway, due to the fact that the sizes of all places of the hoistway are not consistent or the building floors on which the construction elevator is installed are high, channel steel is installed in the hoistway firstly when the machine placing frame of the construction elevator is installed, a machine room top plate or a cross beam is provided with a metal support or a lifting hook, the machine placing frame and a traction machine are pulled through multiple slings or hoists respectively, the machine placing frame needs to be inclined when being lifted upwards to avoid collision with the wall of the hoistway, and meanwhile, the machine placing frame is lifted upwards to be required to be pulled upwards to the top layer all the time from the bottom of the hoistway, and the machine placing frame.
Disclosure of Invention
The invention provides a construction elevator and an installation method thereof, aiming to solve the problems of installation of the construction elevator in a shaft and lifting installation of a machine placing frame in the construction elevator.
The technical scheme adopted by the invention is as follows:
a construction elevator is installed in a hoistway, a machine placing steel beam is arranged in the hoistway, a traction machine, a guide wheel and a rope hitch plate are installed on the machine placing steel beam, the traction machine is connected with a car and a counterweight through a steel wire rope, a control cabinet is arranged in the hoistway, the left side and the right side of the machine placing steel beam are respectively provided with a winch, shaft walls on the left side and the right side of the hoistway are respectively provided with a pull lug, the steel wire ropes on the two winches are respectively connected with the pull lugs on the shaft walls, and the winch drives a machine placing rack to move up and down; put one side of quick-witted girder steel and be equipped with flexible subassembly, flexible subassembly extension supports in each layer door opening place flat bed face of well, the opposite side of putting the quick-witted girder steel is equipped with bracket support piece, bracket support piece lock is in establishing the bracket subassembly on the well wall.
Further, bracket support piece bends, the last bolt hole that is equipped with of bracket support piece, the bracket subassembly includes bracket locating plate and bracket connecting plate, the bracket locating plate bends, the position that bracket locating plate and bracket support piece's bolt hole correspond also is equipped with the bolt hole, both sides are bent around the bracket connecting plate, and the portion of bending of bracket connecting plate is connected with the portion of bending of bracket locating plate, be equipped with a plurality of bolt hole on the bracket connecting plate. When the bracket supporting piece is fixed with the bracket assembly, the bracket positioning plate is connected with the bracket supporting piece through bolts, and the bracket connecting plate is connected with the well wall through bolts.
Further, flexible subassembly includes preceding flexible channel-section steel and the flexible channel-section steel in back, the preceding flexible channel-section steel inserts with the flexible channel-section steel in back and puts inside the quick-witted girder steel, preceding flexible channel-section steel all is equipped with a plurality of bolt hole with flexible channel-section steel upper portion in back, be equipped with the Z word roof beam of bending and the enhancement of bending between preceding flexible channel-section steel and the flexible channel-section steel in back and draw the ear, it is equipped with the push rod mounting panel on the quick-witted girder steel to put, be equipped with the push rod on the push rod mounting panel, strengthen the portion of bending of drawing. The Z word roof beam increases the intensity and the rigidity of flexible channel-section steel, and the push rod provides the power supply and makes flexible subassembly to the activity of well wall, and flexible subassembly forms the movable part in putting the quick-witted girder steel, and flexible subassembly is putting the quick-witted frame and rises or the decline in-process withdrawal and put quick-witted girder steel inside, reduces the whole diameter of putting the quick-witted frame and prevents to put quick-witted frame and well wall collision, and flexible subassembly is stretched under the effect of push rod and is supported in the door opening at place behind the arrival floor.
The invention also discloses an installation method of the construction elevator, which comprises the following steps:
a, the traction ratio of a construction elevator is 2: 1;
b, fixedly installing a guide rail bracket in the hoistway, and installing and correcting the guide rail after the guide rail bracket is installed;
c: the machine placing rack is placed in the middle of the hoistway, a plurality of pull lugs are arranged on two sides of the hoistway at intervals, a plurality of bracket assemblies are arranged on one side close to a bracket supporting piece of the machine placing rack at intervals, a steel wire rope on the winch is hooked on the pull lugs at the lower ends of two sides of the hoistway, the machine frame is horizontally lifted to a designated floor under the work of the winch, the bracket supporting piece is buckled on a bayonet of a bracket reinforcing rib arranged on the wall of the well, the push rod is opened and pushes a reinforcing pull lug connected with the push rod to move towards the wall of the well, after the telescopic component finishes the extending action, the telescopic assembly is supported on a flat layer where each layer of door opening of the shaft way is located in an extending mode, a front side channel steel in the machine placing steel beam, a front telescopic channel steel in the telescopic assembly, a rear side channel steel in the machine placing steel beam and a rear telescopic channel steel in the telescopic assembly are fixed through bolts respectively, and the machine placing frame is fixed on a specified floor;
d, installing a speed limiter, a lift car, a control cabinet and a lift car frame;
e, installing hall doors and door locks;
f, installing a counterweight device and a buffer, wherein the buffer needs to be adjusted and corrected after being installed;
g, installing a towline taper sleeve and hanging a towline;
h, installing an uplink overspeed protection device;
i, debugging the slow vehicle and installing a safety device;
and j, express train debugging and running test.
Furthermore, the left pull lug and the right pull lug on the wall of the shaft are different in height, the bracket assembly is designed to be inclined, the machine placing rack is inclined to rise and descend, and the right side of the machine placing rack cannot collide with the bracket assembly. The two pull lugs are different in height, so that the machine placing rack is lifted or descended and inclined, and the bracket connecting plate and the bracket reinforcing ribs in the bracket assembly are both designed to be inclined planes, so that the machine placing rack is lifted or descended and cannot collide with the bracket assembly.
Further, when the machine placing frame continues to ascend and descend, the bolts on the telescopic assemblies are loosened, the push rod acts, the telescopic assemblies retract to the right into the machine placing steel beam, the right side of the machine placing frame is lifted upwards, and the machine placing frame can continue to ascend or descend. The pull lug and the bracket assembly are standby and are detached and installed at positions where the machine placing frames are installed after the used pull lug and the bracket assembly are used.
Furthermore, when the floor where the construction elevator is installed is low, the machine placing frame does not need to ascend or descend in a staged mode, and the machine placing frame directly ascends to the topmost layer or directly descends to a hoistway pit.
The invention has the following beneficial effects: the machine placing frame in the construction elevator can automatically lift in a shaft, equipment is fixed on the machine placing frame, a telescopic assembly in the machine placing frame stretches and retracts to reduce the size of the machine placing frame, the machine placing frame does not need to ascend or descend in an inclined mode, and the machine placing frame can ascend or descend in a staged mode; the construction elevator is simple and convenient to install, the automatic lifting of the machine placing rack improves the installation efficiency, and the safety factor is high.
Drawings
FIG. 1 is a schematic diagram of the apparatus of the present invention;
FIG. 2 is a schematic view of the structure of the machine shelf frame of the apparatus of the present invention;
FIG. 3 is a schematic view of the car structure of the apparatus of the present invention;
figure 4 is a front view of the machine resting frame of the device of the invention;
FIG. 5 is a schematic view of a machine shelving steel beam configuration;
FIG. 6 is a schematic view of the telescoping assembly in an active configuration;
FIG. 7 is a schematic view of a corbel assembly;
in the figure, 1 is a pull lug, 2 is a traction machine, 3 is a guide wheel, 400 is a steel beam of a machine placing, 410 is a left sealing plate, 420 is a reinforcing plate, 430 is middle H steel, 440 is a C-shaped steel reinforcing plate, 450 is front side channel steel, 460 is rear side channel steel, 470 is a bracket supporting piece, 480 is a right sealing plate, 500 is a telescopic component, 510 is a Z-shaped beam, 520 is a reinforcing pull lug, 530 is front telescopic channel steel, 540 is rear telescopic channel steel, 6 is a rope head plate, 700 is a guardrail, 710 is a guardrail seat, 800 is a bracket component, 810 is a bracket positioning plate, 820 is a bracket reinforcing rib, 830 is a bracket connecting plate, 10 is a push rod mounting plate, 11 is a winch, 12 is a push rod, 13 is a car, 14 is a car frame, and 15 is a counterweight device.
Detailed Description
The invention is explained in detail below with reference to the figures and examples.
Example (b): as shown in fig. 1 to 7, a construction hoist is characterized in that the construction hoist is installed in a hoistway, a machine placing steel beam 400 is arranged in the hoistway, a traction machine 2, a guide wheel 3 and a rope hitch plate 6 are installed on the machine placing steel beam 400, the traction machine 2 is connected with a car 13 and a counterweight through a steel wire rope, a control cabinet is arranged in the hoistway, two hoisting machines 11 are respectively arranged on the left side and the right side of the machine placing steel beam 400, pull lugs 1 are respectively arranged on hoistway walls on the left side and the right side of the hoistway, the steel wire ropes on the two hoisting machines 11 are respectively connected with the pull lugs 1 on the hoistway walls, and the hoisting machines 11 drive a machine placing frame to move up and down; put one side of quick-witted girder steel 400 and be equipped with flexible subassembly 500, flexible subassembly 500 extension is supported in the flat bed face at each layer door opening place of well, the opposite side of putting quick-witted girder steel 400 is equipped with bracket support spare 470, bracket support spare 470 lock is in the bracket subassembly 800 of establishing on the well wall.
The bracket 470 is bent, be equipped with the bolt hole on the bracket 470, bracket subassembly 800 includes bracket locating plate 810 and bracket connecting plate 830, bracket locating plate 810 is bent, the position that bracket locating plate 810 and bracket support 470's bolt hole correspond also is equipped with the bolt hole, both sides are bent around the bracket connecting plate 830, and the portion of bending of bracket connecting plate 830 is connected with the portion of bending of bracket locating plate 810, be equipped with a plurality of bolt hole on the bracket connecting plate 830. When the bracket support 470 is fixed to the bracket assembly 800, the bracket positioning plate 810 is bolted to the bracket support 470, and the bracket connecting plate 830 is bolted to the hoistway wall.
A method of installing a construction hoist, comprising the steps of:
a, the traction ratio of a construction elevator is 2: 1;
b, fixedly installing a guide rail bracket in the hoistway, and installing and correcting the guide rail after the guide rail bracket is installed;
c, placing the machine placing rack in the middle of the shaft, installing a plurality of pull lugs 1 on two sides of the shaft at intervals, installing a plurality of corbel assemblies 800 on one side close to a corbel supporting piece 470 of the machine placing rack at intervals, hooking a steel wire rope on a winch 11 on the pull lugs 1 at the lower ends of two sides of the shaft, horizontally lifting the machine placing rack to a specified floor under the work of the winch 11, buckling the corbel supporting piece 470 on a bayonet of a corbel reinforcing rib 820 arranged on the wall of the shaft, opening a push rod 12, pushing the reinforced pull lug 520 connected with the push rod 12 to move towards the wall of the shaft by the push rod 12, extending and supporting the telescopic assembly 500 on a flat surface where door openings of all layers of the shaft are positioned after the telescopic assembly 500 finishes extending action, and fixing a front side steel beam 450 in the machine placing rack 400, a front extending channel steel 530 in the telescopic assembly 500, a rear side channel steel 460 in the machine placing steel beam 400 and a rear extending channel 540 in the telescopic assembly 500 by bolts respectively, the machine placing rack is fixed on a designated floor;
d, installing a speed limiter, a lift car 13, a control cabinet and a lift car frame 14;
e, installing hall doors and door locks;
f, installing a counterweight 15 and a buffer, wherein the buffer needs to be adjusted and corrected after being installed;
g, installing a towline taper sleeve and hanging a towline;
h, installing an uplink overspeed protection device;
i, debugging the slow vehicle and installing a safety device;
and j, express train debugging and running test.
The height of the left pull lug and the height of the right pull lug 1 on the wall of the shaft are different, the bracket assembly 800 is designed to be inclined, the machine placing rack is inclined to rise and descend, and the right side of the machine placing rack cannot collide with the bracket assembly 800. The two pull lugs 1 are different in height to enable the machine placing frame to ascend or descend and incline, and the bracket connecting plate 830 and the bracket reinforcing ribs 820 in the bracket assembly 800 are designed to be inclined, so that the machine placing frame cannot collide with the bracket assembly 800 when ascending or descending.
When the machine placing frame continues to ascend and descend, the bolts on the telescopic assemblies 500 are loosened, the push rods 12 act, the telescopic assemblies 500 retract rightwards into the machine placing steel beams 400, the right side of the machine placing frame is lifted upwards, and the machine placing frame can continue to ascend or descend. The pull lug 1 and the bracket assembly 800 are provided with a plurality of spare pull lugs, and the used pull lug 1 and the bracket assembly 800 are detached after being used and are arranged at the positions where the machine placing frames are arranged.
When the floor where the construction elevator is installed is low, the machine placing frame does not need to ascend or descend in a staged mode, and the machine placing frame directly ascends to the topmost layer or directly descends to a well pit.
The bracket subassembly still includes three bracket strengthening rib 820, and three bracket strengthening rib 820 equidistant installs on bracket connecting plate 830, be equipped with the bayonet socket on the bracket strengthening rib 820, be equipped with the bending mouth corresponding with the bayonet socket of bracket strengthening rib 820 on the bracket support 470. When the clamping opening is formed in the bracket reinforcing rib 820 and is favorable for placing a machine frame, the bending opening of the bracket supporting piece 470 is buckled on the clamping opening of the bracket reinforcing rib 820. The corbel ribs 820 facilitate an increased strength and rigid connection between the hoistway walls when the corbel assembly 800 is coupled to the corbel support 470.
The contact parts of the front side and the rear side of the machine placing steel beam 400 and the telescopic assembly 500 are provided with a plurality of C-shaped steel reinforcing plates 440. A hollow region is formed between the C-shaped steel reinforcement plate 440 and the front and rear channel steels 450 and 460 and the C-shaped steel reinforcement plate 440 has a function of preventing the derailment of the telescopic assembly 500. The C-shaped steel reinforcing plate 440 has an effect of increasing strength.
Put quick-witted girder steel 400 and include front side channel-section steel 450, rear side channel-section steel 460 and be located middle H steel 430 between front side channel-section steel 450 and the rear side channel-section steel 460, all be equipped with a plurality of bolt hole on front side channel-section steel 450 and the rear side channel-section steel 460, the left and right sides of putting quick-witted girder steel 400 is equipped with left shrouding 410 and right shrouding 480 respectively, front side channel-section steel 450 and rear side channel-section steel 460 are connected to left and right shrouding, left side shrouding 410 is inboard respectively to be equipped with two reinforcing plates 420 from top to bottom, and front side channel-section steel 450 and middle H steel 430 are connected to two reinforcing plates 420 about the front side, and H steel 430 and rear side channel-section steel 460. When the telescopic channel steel is supported on the plane of each layer of door opening of the shaft in an extending way, the machine placing steel beam 400 and the telescopic assembly 500 are fixed through bolts. The reinforcing plate increases the strength of the telescopic channel steel.
The left winch 11 is fixedly installed on the reinforcing plate 420 at the upper side between the rear-side channel steel 460 and the middle H steel 430, the right winch 11 is installed between the middle H steel 430 and the front-side channel steel 450, and the left and right winches 11 are arranged diagonally. The diagonal design of the hoist 11 facilitates the balanced movement of the whole machine frame upwards.
The pull lug 1 is bent to form a bending part, the pull lug 1 is connected with the well wall through a bolt, and a connecting hole is formed in the bending part of the pull lug 1. The pull lug 1 is connected with a steel wire rope of a windlass 11.
The front channel steel 450 and the rear channel steel 460 are respectively provided with a guardrail 700, and the guardrail 700 is connected with the front channel steel 450 and the C-shaped steel reinforcing plate 440 on the rear channel steel 460 through a guardrail seat 710. The guardrail 700 protects the equipment for placing the machine frame from falling, and the safety is ensured.
Claims (7)
1. A construction elevator is characterized in that the construction elevator is installed in a hoistway, a machine placing steel beam (400) is arranged in the hoistway, a traction machine (2), a guide wheel (3) and a rope hitch plate (6) are installed on the machine placing steel beam (400), the traction machine (2) is connected with a car (13) and a counterweight (15) through a steel wire rope, a control cabinet is arranged in the hoistway, two winches (11) are respectively arranged on the left side and the right side of the machine placing steel beam (400), pull lugs (1) are respectively arranged on hoistway walls on the left side and the right side of the hoistway, the steel wire ropes on the two winches (11) are respectively connected with the pull lugs (1) on the hoistway walls, and the winches (11) drive a machine placing frame to move up and down; put one side of quick-witted girder steel (400) and be equipped with flexible subassembly (500), flexible subassembly (500) extension is supported in each layer door opening place flat bed face of well, the opposite side of putting quick-witted girder steel (400) is equipped with bracket support piece (470), bracket support piece (470) lock is in bracket subassembly (800) of establishing on the well wall.
2. The construction elevator as claimed in claim 1, wherein the bracket support (470) is bent, bolt holes are formed in the bracket support (470), the bracket assembly (800) comprises a bracket positioning plate (810) and a bracket connecting plate (830), the bracket positioning plate (810) is bent, bolt holes are also formed in positions of the bracket positioning plate (810) corresponding to the bolt holes of the bracket support (470), the front side and the rear side of the bracket connecting plate (830) are bent, the bent portion of the bracket connecting plate (830) is connected with the bent portion of the bracket positioning plate (810), and a plurality of bolt holes are formed in the bracket connecting plate (830).
3. The construction hoist as claimed in claim 2, wherein the telescopic assembly (500) comprises a front telescopic channel (530) and a rear telescopic channel (540), the front telescopic channel (530) and the rear telescopic channel (540) are inserted into the machine steel beam (400), a plurality of bolt holes are formed in the upper portions of the front telescopic channel (530) and the rear telescopic channel (540), a bent Z-shaped beam (510) and a bent reinforcing pull lug (520) are arranged between the front telescopic channel (530) and the rear telescopic channel (540), a push rod mounting plate (10) is arranged on the machine steel beam (400), a push rod (12) is arranged on the push rod mounting plate (10), and the push rod (12) is connected with the bent portion of the reinforcing pull lug (520) on the telescopic assembly (500).
4. A method of installing a construction hoist according to claim 3, characterized by comprising the steps of:
a, the traction ratio of a construction elevator is 2: 1;
b, fixedly installing a guide rail bracket in the hoistway, and installing and correcting the guide rail after the guide rail bracket is installed;
c, placing the machine placing rack in the middle of a hoistway, installing a plurality of pull lugs (1) on two sides of the hoistway at intervals, installing a plurality of bracket assemblies (800) on one side close to bracket supporting pieces (470) of the machine placing rack at intervals, hooking steel wire ropes on a winch (11) on the pull lugs (1) at the lower ends of two sides of the hoistway, horizontally lifting the machine placing rack to a specified floor under the working of the winch (11), buckling the bracket supporting pieces (470) on bayonets of bracket reinforcing ribs (820) arranged on a hoistway wall, opening a push rod (12), pushing the push rod (12) to push reinforcing pull lugs (520) connected with the push rod (12) to move towards the hoistway wall, after the telescopic assemblies (500) complete stretching action, extending and supporting the telescopic assemblies (500) on the plane of door openings of the various layers of the hoistway, and fixing front side channel steel (450) in the machine placing steel beam (400) and front extending and retracting (530) in the telescopic assemblies (500) respectively by bolts, A rear channel steel (460) in the machine placing steel beam (400) and a rear telescopic channel steel (540) in the telescopic assembly (500), wherein the machine placing frame is fixed on a designated floor;
d, installing a speed limiter, a lift car (13), a control cabinet and a lift car frame (14);
e, installing hall doors and door locks;
f, installing a counterweight device (15) and a buffer, wherein the buffer needs to be adjusted and corrected after being installed;
g, installing a towline taper sleeve and hanging a towline;
h, installing an uplink overspeed protection device;
i, debugging the slow vehicle and installing a safety device;
and j, express train debugging and running test.
5. A method for installing a construction elevator according to claim 4, wherein the height of the left and right pulling lugs (1) on the hoistway wall is different and the bracket assembly (800) is designed to be inclined, the machine frame is inclined to rise and inclined to fall, and the right side of the machine frame does not collide with the bracket assembly (800).
6. A method of installing a construction elevator according to claim 4, wherein the bolt of the telescopic assembly (500) is loosened when the machine frame continues to be raised and lowered, the push rod (12) is actuated, the telescopic assembly (500) is retracted to the right into the steel beam (400) of the machine frame, the right side of the machine frame is lifted upwards, and the machine frame can continue to be raised or lowered.
7. The method of claim 4, wherein the machine rack is raised to the topmost floor directly or lowered to the shaft pit directly without stepwise raising or lowering of the machine rack when the construction hoist is installed at a low floor.
Priority Applications (1)
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| CN201910956318.XA CN110697545A (en) | 2019-10-10 | 2019-10-10 | Construction elevator and installation method thereof |
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| CN201910956318.XA CN110697545A (en) | 2019-10-10 | 2019-10-10 | Construction elevator and installation method thereof |
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| CN110589669A (en) * | 2019-10-10 | 2019-12-20 | 奥帝亚电梯有限公司 | Machine placing rack for elevator |
| CN112279041A (en) * | 2020-11-13 | 2021-01-29 | 金华市东山机械厂 | Tower crane manned lifting device |
| CN112723105A (en) * | 2021-02-02 | 2021-04-30 | 杭州百科新材料有限公司 | Construction elevator |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110589669A (en) * | 2019-10-10 | 2019-12-20 | 奥帝亚电梯有限公司 | Machine placing rack for elevator |
| CN112279041A (en) * | 2020-11-13 | 2021-01-29 | 金华市东山机械厂 | Tower crane manned lifting device |
| CN112279041B (en) * | 2020-11-13 | 2023-03-03 | 金华市东山机械厂 | Tower crane manned lifting device |
| CN112723105A (en) * | 2021-02-02 | 2021-04-30 | 杭州百科新材料有限公司 | Construction elevator |
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Application publication date: 20200117 |