CN111646387A - Rapid moving and mounting platform for standard knot of existing building quick-mounting steel structure elevator - Google Patents
Rapid moving and mounting platform for standard knot of existing building quick-mounting steel structure elevator Download PDFInfo
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- CN111646387A CN111646387A CN202010545715.0A CN202010545715A CN111646387A CN 111646387 A CN111646387 A CN 111646387A CN 202010545715 A CN202010545715 A CN 202010545715A CN 111646387 A CN111646387 A CN 111646387A
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- locking
- locking mechanism
- wheel
- moving
- strong magnetic
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
- B66F7/0691—Asymmetric linkages, i.e. Y-configuration
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
- B66F7/0625—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement with wheels for moving around the floor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/28—Constructional details, e.g. end stops, pivoting supporting members, sliding runners adjustable to load dimensions
Abstract
The existing building fast-assembly steel structure elevator standard knot moves the dress platform fast, by the mobile device, hoisting device and equipment main part are constituteed, the mobile device is by removing the wheel support, remove the wheel, remove wheel locking mechanism, the locking resumes air spring and locking mechanism clutch and constitutes, hoisting device comprises the step-by-step electric putter of area locking function, bracing piece, cylinder, gyro wheel, frock platform and strong magnetic block, the main part device comprises stand, rectangular frame and strong magnetic thrust action device. The structure of the invention is easy to realize, the steering and the moving are flexible, the standard knot of the steel structure elevator is high-efficient to carry, lift up and lower, and the invention solves the problems of poor mobility and autonomy of the existing moving and loading platform.
Description
Technical Field
The invention relates to a quick moving and mounting platform, in particular to a quick moving and mounting platform for a standard section of a quick-mounting steel structure elevator of an existing building, which is used for quickly moving and mounting a modularized and standardized integral steel structure member.
Background
With the aging of population and the high price of buildings, the existing buildings are imperative to install elevators, and are the problems of civilian life advocated and encouraged by the nation and the government, and the market potential is huge. The existing building is additionally provided with an elevator, and a corresponding elevator shaft is not arranged in advance, so that a common solution is that a steel structure framework is adopted as the elevator shaft to be arranged outdoors, the existing building quick-mounting steel structure elevator shaft adopts a standard section type design, and standard sections of a section are connected to form the steel structure elevator shaft, so that the standard sections are main components in the existing building quick-mounting steel structure elevator additionally-mounting process. The steel structure elevator standard knot is after the factory finishes the initial assembly, reachs the site of building site and carries out the on-the-spot equipment of a plurality of standard knots again, and not only the installation is simple and convenient, has still saved the time cost. However, in the transportation and installation process of the steel structure elevator standard knot, a proper rapid moving and installing platform is not used for moving and installing the steel structure elevator standard knot, and the existing moving and installing platform is not suitable for moving and installing the existing building rapid-installation steel structure elevator.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a quick moving and mounting platform for a standard knot of an elevator with a quick-mounting steel structure in the existing building, so as to meet the requirement of the field of moving and mounting equipment for the elevator in the existing building.
The technical scheme adopted by the invention for solving the technical problems is as follows: the existing building fast-assembly steel structure elevator standard knot moves the dress platform fast, by the mobile device, hoisting device and equipment main part are constituteed, the mobile device is by removing the wheel support, remove the wheel, remove wheel locking mechanism, the locking resumes air spring and locking mechanism clutch and constitutes, hoisting device comprises the step-by-step electric putter of area locking function, bracing piece, cylinder, gyro wheel, frock platform and strong magnetic block, the main part device comprises stand, rectangular frame and strong magnetic thrust action device.
The movable wheel bracket is of a fork-shaped structure, the tail end of the fork-shaped structure frame is connected with the rectangular frame, the front end of the fork-shaped structure frame is provided with a movable wheel, semicircular grooves are uniformly distributed on an outer hub of the movable wheel, and mounting shafts hinged with a movable wheel locking mechanism are arranged at the centers of two sides of the fork-shaped frame of the movable wheel bracket; the moving wheel locking mechanism is of an L-shaped structure, the long edge of the moving wheel locking mechanism is hinged with mounting shafts at the centers of two sides of a fork-shaped frame of the moving wheel bracket, and the tail end of the short edge of the moving wheel locking mechanism is of a semicircular structure matched with a groove of an outer hub of the moving wheel; the assembly holes connected with the end parts of the locking mechanism linkage devices are arranged at the junctions of the long sides and the short sides of the moving wheel locking mechanisms, the tail ends of the locking mechanism linkage devices are respectively connected with the two moving wheel locking mechanisms, the middle of each locking mechanism linkage device is provided with a pedal plate, acting force is applied to the pedal plate of each locking mechanism linkage device, and the semicircular structures at the tail ends of the short sides of the moving wheel locking mechanisms are embedded into the semicircular grooves of the outer hubs of the moving wheels, so that the locking action of the two moving wheels is completed; the locking mechanism linkage device has the advantages that opposite acting force is applied to the pedal of the locking mechanism linkage device, so that the semicircular structure at the tail end of the short side of the locking mechanism of the moving wheel is separated from the semicircular groove of the outer hub of the moving wheel, and the locking and releasing actions of the moving wheel are completed; remove wheel support fork type structure frame top and be equipped with locking and resume gas spring connecting device, remove long limit of wheel locking mechanism and minor face juncture and also be equipped with locking and resume gas spring connecting device, locking resumes gas spring one end and connects and remove the wheel support, and the other end is connected and is removed wheel locking mechanism, through the rising and the decline action of locking mechanism clutch, drives the flexible of locking and resuming gas spring to the completion removes the release and the maintenance of wheel locking.
The stepping electric push rod with the locking function comprises a driving motor, a reduction gear, a screw rod, a nut, a guide sleeve, a push rod, a slide seat, a spring, a shell, a turbine and a micro control switch, wherein the micro control switch, the driving motor, the reduction gear, the turbine, the screw rod, the nut, the guide sleeve, the slide seat, the spring and the push rod are sequentially arranged in the shell, the tail end of the shell of the stepping electric push rod with the locking function is hinged with the upper end of an upright post, the tail end of the stepping electric push rod with the locking function is hinged with a hinged joint in the middle of a support rod, the driving motor drives the reduction gear to move so as to drive the screw rod to move telescopically and drive the support rod to do swinging motion, in addition, the stepping electric push rod with the locking function is also provided with a stepping and locking structure, and the telescopic and locking positions of the stepping, one end of the supporting rod is hinged with a roller supporting the bottom end face of the tooling platform, and the other end of the supporting rod is hinged with the lower end of the upright post.
The rectangular frame is formed by fixedly connecting four L-shaped angle iron heads and tails, moving wheel bracket mounting holes are formed in the center positions of four corners of the rectangular frame, the lower ends of stand columns are fixedly connected with two sides of the rear end of the rectangular frame, concave slideways are arranged on the opposite inner sides of the two stand columns, slideways matched with the strong magnetic thrust acting device are arranged on one side of the vertical surface of the concave slideways of the stand columns, the strong magnetic thrust acting device is attached to the slideways through strong magnetic force, meanwhile, the attachment position of the strong magnetic thrust acting device can be adjusted in real time according to the force applied by an operator, a flexible contact sleeve for preventing hands from being injured is arranged in the middle position of the strong magnetic thrust acting device, and square strong magnets; the shaft ends of the movable wheel support are hinged with mounting holes at four corners of the rectangular frame, roller shafts hinged with the rollers are arranged on two sides of the rear end of the tooling platform, the rollers are matched with the concave slide ways of the upright posts and vertically move along the concave slide ways, L-shaped tooling mounting holes are uniformly formed in four corners of the upper portion of the tooling platform, the steel structure elevator standard knots are fixed by strong magnetic stoppers according to different sizes of the steel structure elevator standard knots, swinging of the standard knots in the rapid moving and mounting process is prevented, and the strong magnetic stoppers correspond to the L-shaped tooling mounting holes of the tooling platform in size one to one; the stepping electric push rod with the locking function drives the supporting rod to move, the supporting rod drives the roller to move, the roller supporting tool platform and the roller move up and down, and the roller moves horizontally along the bottom end face of the tool platform to complete lifting and descending actions of the tool platform.
Compared with the prior art, the invention has the beneficial effects that:
1. the upper part of the tool platform with the structure is uniformly provided with the L-shaped tool mounting holes, and the L-shaped tool mounting holes can be flexibly adjusted according to different sizes of standard sections of a steel structure elevator, so that the usability of the platform is improved.
2. The stepping electric push rod with the locking function can adjust the position and the height of the moving platform in real time according to the transportation and installation position of the steel structure elevator standard knot, and the versatility of the moving platform is improved.
3. The strong magnetic thrust acting device with the structure can be attached to the slide way through strong magnetic force, and meanwhile, the attachment position of the strong magnetic thrust acting device can be adjusted in real time according to the application force of an operator, so that the application force of the operator is greatly reduced.
4. The structure of the invention is easy to realize, the steering and the moving are flexible, the standard knot of the steel structure elevator is high-efficient to carry, lift up and lower, and the invention solves the problems of poor mobility and autonomy of the existing moving and loading platform.
Drawings
Fig. 1 is a schematic structural diagram of the present invention (the tooling platform is in a low position).
Fig. 2 is a schematic structural diagram of the present invention (the tooling platform is in a high position).
Fig. 3 is a schematic view of the structure of the present invention (axonometric view a).
Fig. 4 is a schematic view of the structure of the present invention (isometric view B).
Fig. 5 is a schematic structural diagram of the lifting device of the present invention.
Fig. 6 is a schematic structural diagram of a mobile device according to the present invention.
Fig. 7 is a schematic structural diagram of a moving device (moving part) according to the present invention.
Fig. 8 is a schematic structural view of the moving device (locking member) of the present invention.
Fig. 9 is a schematic structural view of the tooling platform of the present invention.
FIG. 10 is a schematic view showing the structure of the strong magnetic thrust acting device of the present invention.
Fig. 11 is a schematic structural view of the column of the present invention.
In the figure, 11, a movable wheel bracket, 12, a movable wheel, 13, a movable wheel locking mechanism, 14, a locking recovery gas spring, 15, a locking mechanism linkage, 21, a stepping electric push rod with a locking function, 22, a support rod, 23, a roller, 24, a roller, 25, a tooling platform, 26, a strong magnetic stop block, 31, an upright post, 32, a rectangular frame, 33, a strong magnetic thrust action device and 4, a standard knot of a fast-assembly steel structure elevator.
Detailed Description
As shown in fig. 1-11, the fast moving and mounting platform for the standard section of the existing building fast-assembly steel structure elevator comprises a moving device, a lifting device and an equipment main body, wherein the moving device comprises a moving wheel bracket 11, a moving wheel 12, a moving wheel locking mechanism 13, a locking recovery air spring 14 and a locking mechanism linkage 15, the lifting device comprises a stepping electric push rod 21 with a locking function, a support rod 22, a roller 23, a roller 24, a tooling platform 25 and a strong magnetic stop block 26, and the main body device comprises a stand column 31, a rectangular frame 32 and a strong magnetic thrust action device 33.
As shown in fig. 1-11, the moving wheel bracket 11 is a fork-shaped structure, the end of the fork-shaped structure is connected with the rectangular frame 32, the moving wheel 12 is installed at the front end of the fork-shaped structure, semicircular grooves are uniformly distributed on the outer hub of the moving wheel 12, and an installation shaft hinged with the moving wheel locking mechanism 13 is arranged at the center of two sides of the fork-shaped frame of the moving wheel bracket 11; the moving wheel locking mechanism 13 is of an L-shaped structure, the long side of the moving wheel locking mechanism 13 is hinged with the mounting shafts at the centers of the two sides of the fork-shaped frame of the moving wheel bracket 11, and the tail end of the short side of the moving wheel locking mechanism 13 is of a semicircular structure matched with the groove of the outer hub of the moving wheel 12; through the assembly holes connected with the end parts of the locking mechanism linkage device 15 are arranged at the junctions of the long sides and the short sides of the moving wheel locking mechanisms 13, the tail ends of the locking mechanism linkage device 15 are respectively connected with the two moving wheel locking mechanisms 13, the middle of the locking mechanism linkage device 15 is provided with a pedal, acting force is applied to the pedal of the locking mechanism linkage device 15, so that the semicircular structures at the tail ends of the short sides of the moving wheel locking mechanisms 13 are embedded into the semicircular grooves of the outer hubs of the moving wheels 12, and the locking action on the two moving wheels 12 is completed; the semi-circular structure at the end of the short side of the moving wheel locking mechanism 13 is separated from the semi-circular groove of the outer hub of the moving wheel 12 by applying opposite acting force on the pedal of the locking mechanism linkage 15, thereby completing the locking and releasing action of the moving wheel 12; the top of the fork-shaped structure frame of the movable wheel support 11 is provided with a locking recovery air spring 14 connecting device, the junction of the long edge and the short edge of the movable wheel locking mechanism 13 is also provided with the locking recovery air spring 14 connecting device, one end of the locking recovery air spring 14 is connected with the movable wheel support 11, the other end of the locking recovery air spring is connected with the movable wheel locking mechanism 13, and the locking recovery air spring 14 is driven to stretch through the ascending and descending actions of the locking mechanism linkage 15, so that the locking and the keeping of the movable wheel 12 are completed.
As shown in fig. 1-11, the stepping electric pushing rod 21 with locking function is composed of a driving motor, a reduction gear, a screw, a nut, a guide sleeve, a pushing rod, a sliding seat, a spring, a housing, a turbine and a micro control switch, wherein the micro control switch, the driving motor, the reduction gear, the turbine, the screw, the nut, the guide sleeve, the sliding seat, the spring and the pushing rod are sequentially installed inside the housing, the end of the housing of the stepping electric pushing rod 21 with locking function is hinged with the upper end of the upright column 31, the end of the stepping electric pushing rod 21 with locking function is hinged with a hinged joint in the middle of the supporting rod 22, the driving motor drives the reduction gear to move, thereby driving the screw to move telescopically and driving the supporting rod 22 to swing, in addition, the stepping electric pushing rod 21 with locking function is further provided with a stepping and locking structure, and the telescopic and locking positions of the stepping electric pushing rod 21 with locking function are set, one end of the supporting rod 22 is hinged with a roller 23 supporting the bottom end face of the tooling platform 25, and the other end of the supporting rod 22 is hinged with the lower end of the upright column 31.
As shown in fig. 1-11, the rectangular frame 32 is formed by fixedly connecting four L-shaped angle irons, the head and the tail of the L-shaped angle iron are fixedly connected, the center positions of four corners of the rectangular frame 32 are provided with mounting holes for the movable wheel bracket 11, the lower end of the upright column 31 is fixedly connected with two sides of the rear end of the rectangular frame 32, the opposite inner sides of the two upright columns 31 are provided with concave slideways, one side of the vertical surface of the concave slideway of the upright column 31 is provided with a slideway matched with the strong magnetic thrust acting device 33, the strong magnetic thrust acting device 33 is attached to the slideway through strong magnetic force, the attachment position of the strong magnetic thrust acting device 33 can be adjusted in real time according to the magnitude of the applied force of an operator, the middle position of the strong magnetic thrust acting device 33 is; the shaft end of the movable wheel support 11 is hinged with mounting holes at four corners of the rectangular frame 32, roller shafts hinged with the rollers 24 are arranged on two sides of the rear end of the tooling platform 25, the rollers 24 are matched with the concave slideway of the upright column 31 and vertically move along the concave slideway, L-shaped tooling mounting holes are uniformly arranged at four corners of the upper part of the tooling platform 25, the standard knot of the steel structure elevator is fixed by a strong magnetic stop 26 according to different sizes of the standard knot of the steel structure elevator, the standard knot is prevented from swinging in the rapid moving and mounting process, and the strong magnetic stop 26 corresponds to the L-shaped tooling mounting holes of the tooling platform 25 in a one-to-one mode; step electric putter 21 of area locking function drives bracing piece 22 and moves, and bracing piece 22 drives the motion of cylinder 23, and cylinder 23 bracketing frock platform 25 and gyro wheel 24 reciprocate, and cylinder 23 accomplishes the promotion of frock platform 25, descending action along frock platform 25 bottom end face horizontal motion.
Claims (4)
1. Existing building ready-package steel construction elevator standard festival moves dress platform fast comprises mobile device, hoisting device and equipment main part, its characterized in that: the moving device consists of a moving wheel support, a moving wheel locking mechanism, a locking recovery air spring and a locking mechanism linkage, the lifting device consists of a stepping electric push rod with a locking function, a support rod, a roller, a tooling platform and a strong magnetic stop block, and the main device consists of an upright post, a rectangular frame and a strong magnetic thrust action device.
2. The existing building ready-package steel structure elevator standard knot moves dress platform fast according to claim 1 characterized in that: the movable wheel bracket is of a fork-shaped structure, the tail end of the fork-shaped structure frame is connected with the rectangular frame, the front end of the fork-shaped structure frame is provided with a movable wheel, semicircular grooves are uniformly distributed on an outer hub of the movable wheel, and mounting shafts hinged with a movable wheel locking mechanism are arranged at the centers of two sides of the fork-shaped frame of the movable wheel bracket; the moving wheel locking mechanism is of an L-shaped structure, the long edge of the moving wheel locking mechanism is hinged with mounting shafts at the centers of two sides of a fork-shaped frame of the moving wheel bracket, and the tail end of the short edge of the moving wheel locking mechanism is of a semicircular structure matched with a groove of an outer hub of the moving wheel; the assembly holes connected with the end parts of the locking mechanism linkage devices are arranged at the junctions of the long sides and the short sides of the moving wheel locking mechanisms, the tail ends of the locking mechanism linkage devices are respectively connected with the two moving wheel locking mechanisms, the middle of each locking mechanism linkage device is provided with a pedal plate, acting force is applied to the pedal plate of each locking mechanism linkage device, and the semicircular structures at the tail ends of the short sides of the moving wheel locking mechanisms are embedded into the semicircular grooves of the outer hubs of the moving wheels, so that the locking action of the two moving wheels is completed; the locking mechanism linkage device has the advantages that opposite acting force is applied to the pedal of the locking mechanism linkage device, so that the semicircular structure at the tail end of the short side of the locking mechanism of the moving wheel is separated from the semicircular groove of the outer hub of the moving wheel, and the locking and releasing actions of the moving wheel are completed; remove wheel support fork type structure frame top and be equipped with locking and resume gas spring connecting device, remove long limit of wheel locking mechanism and minor face juncture and also be equipped with locking and resume gas spring connecting device, locking resumes gas spring one end and connects and remove the wheel support, and the other end is connected and is removed wheel locking mechanism, through the rising and the decline action of locking mechanism clutch, drives the flexible of locking and resuming gas spring to the completion removes the release and the maintenance of wheel locking.
3. The existing building ready-package steel structure elevator standard knot moves dress platform fast according to claim 1 characterized in that: the stepping electric push rod with the locking function comprises a driving motor, a reduction gear, a screw rod, a nut, a guide sleeve, a push rod, a slide seat, a spring, a shell, a turbine and a micro control switch, wherein the micro control switch, the driving motor, the reduction gear, the turbine, the screw rod, the nut, the guide sleeve, the slide seat, the spring and the push rod are sequentially arranged in the shell, the tail end of the shell of the stepping electric push rod with the locking function is hinged with the upper end of an upright post, the tail end of the stepping electric push rod with the locking function is hinged with a hinged joint in the middle of a support rod, the driving motor drives the reduction gear to move so as to drive the screw rod to move telescopically and drive the support rod to do swinging motion, in addition, the stepping electric push rod with the locking function is also provided with a stepping and locking structure, and the telescopic and locking positions of the stepping, one end of the supporting rod is hinged with a roller supporting the bottom end face of the tooling platform, and the other end of the supporting rod is hinged with the lower end of the upright post.
4. The existing building ready-package steel structure elevator standard knot moves dress platform fast according to claim 1 characterized in that: the rectangular frame is formed by fixedly connecting four L-shaped angle iron heads and tails, moving wheel bracket mounting holes are formed in the center positions of four corners of the rectangular frame, the lower ends of stand columns are fixedly connected with two sides of the rear end of the rectangular frame, concave slideways are arranged on the opposite inner sides of the two stand columns, slideways matched with the strong magnetic thrust acting device are arranged on one side of the vertical surface of the concave slideways of the stand columns, the strong magnetic thrust acting device is attached to the slideways through strong magnetic force, meanwhile, the attachment position of the strong magnetic thrust acting device can be adjusted in real time according to the force applied by an operator, a flexible contact sleeve for preventing hands from being injured is arranged in the middle position of the strong magnetic thrust acting device, and square strong magnets; the shaft ends of the movable wheel support are hinged with mounting holes at four corners of the rectangular frame, roller shafts hinged with the rollers are arranged on two sides of the rear end of the tooling platform, the rollers are matched with the concave slide ways of the upright posts and vertically move along the concave slide ways, L-shaped tooling mounting holes are uniformly formed in four corners of the upper portion of the tooling platform, the steel structure elevator standard knots are fixed by strong magnetic stoppers according to different sizes of the steel structure elevator standard knots, swinging of the standard knots in the rapid moving and mounting process is prevented, and the strong magnetic stoppers correspond to the L-shaped tooling mounting holes of the tooling platform in size one to one; the stepping electric push rod with the locking function drives the supporting rod to move, the supporting rod drives the roller to move, the roller supporting tool platform and the roller move up and down, and the roller moves horizontally along the bottom end face of the tool platform to complete lifting and descending actions of the tool platform.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010545715.0A CN111646387A (en) | 2020-06-16 | 2020-06-16 | Rapid moving and mounting platform for standard knot of existing building quick-mounting steel structure elevator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010545715.0A CN111646387A (en) | 2020-06-16 | 2020-06-16 | Rapid moving and mounting platform for standard knot of existing building quick-mounting steel structure elevator |
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| CN111646387A true CN111646387A (en) | 2020-09-11 |
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| CN202010545715.0A Pending CN111646387A (en) | 2020-06-16 | 2020-06-16 | Rapid moving and mounting platform for standard knot of existing building quick-mounting steel structure elevator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113788383A (en) * | 2021-08-26 | 2021-12-14 | 南京城镇建筑设计咨询有限公司 | Jacking process and jacking mechanism for existing house with additionally-installed elevator |
| CN115043363A (en) * | 2022-06-08 | 2022-09-13 | 五矿二十三冶建设集团有限公司 | Jacking method for multistage installation jacking device |
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| CN108820029A (en) * | 2018-08-30 | 2018-11-16 | 东莞贯新幼童用品有限公司 | A kind of perambulator universal wheel and the dismountable perambulator synchronous brake mechanism of wheel group |
| CN109194023A (en) * | 2018-09-03 | 2019-01-11 | 昌荣电机（深圳）有限公司 | A kind of electric pushrod |
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| CN210513622U (en) * | 2019-07-15 | 2020-05-12 | 安顺市海龙诚光电科技有限公司 | Multi-angle backlight plate detection jig |
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| CN113788383A (en) * | 2021-08-26 | 2021-12-14 | 南京城镇建筑设计咨询有限公司 | Jacking process and jacking mechanism for existing house with additionally-installed elevator |
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| CN115043363B (en) * | 2022-06-08 | 2024-02-27 | 五矿二十三冶建设集团有限公司 | Jacking method of multi-stage installation jacking device |
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Application publication date: 20200911 |