CN117246908B - Basic prefabricated part overhead hoist - Google Patents
Basic prefabricated part overhead hoist Download PDFInfo
- Publication number
- CN117246908B CN117246908B CN202311523765.9A CN202311523765A CN117246908B CN 117246908 B CN117246908 B CN 117246908B CN 202311523765 A CN202311523765 A CN 202311523765A CN 117246908 B CN117246908 B CN 117246908B
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- China
- Prior art keywords
- conductive
- hollow cylinder
- alarm
- prefabricated part
- main rope
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Links
- 239000007788 liquid Substances 0.000 claims abstract description 37
- 238000010276 construction Methods 0.000 claims description 3
- 239000006260 foam Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 6
- 238000007790 scraping Methods 0.000 abstract description 5
- 230000000712 assembly Effects 0.000 description 20
- 238000000429 assembly Methods 0.000 description 20
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
- B66C13/08—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/12—Slings comprising chains, wires, ropes, or bands; Nets
- B66C1/14—Slings with hooks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C15/00—Safety gear
- B66C15/06—Arrangements or use of warning devices
- B66C15/065—Arrangements or use of warning devices electrical
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control And Safety Of Cranes (AREA)
Abstract
The invention provides a hoisting device for a basic prefabricated part, which belongs to the technical field of hoisting machinery and comprises a mounting assembly, a hollow cylinder, a power supply, an alarm, a hoisting main rope and a conductive assembly, wherein the hollow cylinder is internally filled with liquid, the upper end of the hoisting main rope is connected with a crane, the lower end of the hoisting main rope is connected with the upper end of the hollow cylinder, and the mounting assembly is arranged at the lower end of the hollow cylinder and is used for mounting the prefabricated part on the lower part of the hollow cylinder. Compared with the prior art, the embodiment of the invention can detect the inclined state of the lifting main rope at any angle and any position when the prefabricated part is lifted, so that high-altitude staff can quickly adjust the angle of the lifting main rope, the prefabricated part can be lifted off the ground stably in a vertical posture, the phenomenon of scraping with the ground, vehicles and the like due to inclined pulling force in the lifting process of the prefabricated part is effectively avoided, and the scraping damage probability of the prefabricated part is reduced.
Description
Technical Field
The invention belongs to the technical field of hoisting machinery, and particularly relates to a hoisting device for a basic prefabricated part.
Background
The foundation prefabricated part is manufactured by transferring a large amount of field operation work in the traditional construction mode to a factory, processing the foundation prefabricated part in the factory, then transporting the foundation prefabricated part to a construction site, and assembling and installing the foundation prefabricated part on the site through a reliable connection mode.
At present, the transportation of the foundation prefabricated part is required to be lifted by means of a lifting machine such as a crane, when the foundation prefabricated part is lifted by the lifting machine such as the crane, most of the foundation prefabricated part is mounted by using a hook at the lower end of a cable, then the crane controls the cable to wind so as to lift the foundation prefabricated part off the ground, in the process, according to different lifting heights, sometimes the lowering distance of the cable is relatively longer, after the foundation prefabricated part is mounted by the hook at the lower end of the cable, the cable is easy to be in an inclined state, so that the tensile force transmitted to the foundation prefabricated part through the cable can also be in an inclined state, and when the foundation prefabricated part is subjected to the inclined tensile force, the foundation prefabricated part is easy to slide relative to a supporting object (such as a vehicle or the ground) at the bottom in the lifting process, thereby causing scraping damage of the foundation prefabricated part.
Disclosure of Invention
Aiming at the defects of the prior art, the technical problem to be solved by the embodiment of the invention is to provide a lifting device for a basic prefabricated part.
In order to solve the technical problems, the invention provides the following technical scheme:
a hoisting device for a foundation prefabricated part comprises a mounting component, a hollow cylinder, a power supply, an alarm, a hoisting main rope and a conductive component,
the hollow cylinder is internally filled with liquid,
the upper end of the lifting main rope is connected with the crane, the lower end is connected with the upper end of the hollow column,
the mounting component is arranged at the lower end of the hollow column body and is used for mounting the prefabricated component at the lower part of the hollow column body,
the power supply and the alarm are arranged on the side wall of the hollow cylinder,
the conductive components are provided with a plurality of groups, the conductive components are distributed on the inner wall of the hollow cylinder at intervals in a ring shape, the conductive components can slide up and down along the inner wall of the hollow cylinder under the influence of the liquid level change,
when the plane surrounded by the conductive components is vertical to the axis of the hollow cylinder, the conductive components can realize the electric conduction between the power supply and the alarm, the alarm sends out an alarm signal,
when the plane surrounded by the conductive components and the axis of the hollow cylinder are inclined, the alarm is powered off, so that an alarm signal cannot be sent.
As a further improvement of the invention: the mounting component comprises a hook, a hanging ring and a plurality of hoisting auxiliary ropes,
and one ends of the lifting auxiliary ropes are connected with the upper edge of the prefabricated part, the other ends of the lifting auxiliary ropes are connected with the hanging rings, and the hooks are arranged at the bottom of the hollow cylinder and matched with the hanging rings to realize the mounting of the prefabricated part.
As a further improvement of the invention: the conductive components have the same structure and all comprise conductive blocks,
one side of each group of conductive blocks is connected with a group of buoyancy supporting components, one end of each group of buoyancy supporting components, which is far away from the corresponding conductive block, is contacted with the liquid level of the liquid,
and a conductive sheet is arranged between two adjacent groups of conductive blocks, the conductive sheet is fixedly arranged on the inner wall of the hollow cylinder, and the power supply and the alarm are connected with one group of conductive sheets through wires.
As a further improvement of the invention: the buoyancy support component comprises an L-shaped support rod and a floating ball,
one end of the L-shaped supporting rod is connected with the conductive block, the other end of the L-shaped supporting rod is connected with the floating ball, and the floating ball floats on the liquid level of the liquid.
As a still further improvement of the invention: the floating ball is a rubber floating ball or a foam floating ball.
As a still further improvement of the invention: the floating ball is of a solid structure or a hollow structure.
As a still further improvement of the invention: the inner wall of the hollow cylinder is fixedly provided with a plurality of guide rails distributed along the length direction of the hollow cylinder, the number of the guide rails is the same as that of the conductive blocks, and each group of conductive blocks is in sliding fit with one group of guide rails.
As a still further improvement of the invention: the liquid is a non-conductive liquid.
Compared with the prior art, the invention has the beneficial effects that:
compared with the prior art, the embodiment of the invention can detect the inclined state of the lifting main rope at any angle and any position when the prefabricated part is lifted, so that high-altitude staff can quickly adjust the angle of the lifting main rope, the prefabricated part can be lifted off the ground stably in a vertical posture, the phenomenon of scraping with the ground, vehicles and the like due to inclined pulling force in the lifting process of the prefabricated part is effectively avoided, and the scraping damage probability of the prefabricated part is reduced.
Drawings
FIG. 1 is a schematic diagram of a basic prefabricated component handling device;
FIG. 2 is a schematic diagram of a basic prefabricated component handling device;
FIG. 3 is an enlarged schematic view of area A of FIG. 1;
FIG. 4 is an enlarged schematic view of area B of FIG. 2;
in the figure: 10-prefabricated parts, 20-mounting assemblies, 201-hooks, 202-hanging rings, 203-lifting auxiliary ropes, 30-hollow cylinders, 301-guide rails, 40-power supplies, 50-alarms, 60-lifting main ropes, 70-conductive assemblies, 701-conductive blocks, 702-conductive sheets, 80-buoyancy support assemblies, 801-L-shaped support rods and 802-floating balls.
Detailed Description
The technical scheme of the present application will be described in further detail with reference to the specific embodiments.
Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.
Referring to fig. 1, 2 and 4, this embodiment provides a hoisting device for a prefabricated foundation component, which comprises a mounting component 20, a hollow column 30, a power supply 40, an alarm 50, a hoisting main rope 60 and a conductive component 70, wherein the hollow column 30 is internally filled with liquid, the upper end of the hoisting main rope 60 is connected with a crane (not shown in the figure), the lower end of the hoisting main rope is connected with the upper end of the hollow column 30, the mounting component 20 is arranged at the lower end of the hollow column 30 and is used for hanging the prefabricated component 10 on the lower part of the hollow column 30, the power supply 40 and the alarm 50 are arranged on the side wall of the hollow column 30, the conductive component 70 is provided with a plurality of groups, a plurality of conductive components 70 are annularly distributed on the inner wall of the hollow column 30 at intervals, and can slide up and down along the inner wall of the hollow column 30 under the influence of the liquid level change, when the plane surrounded by the conductive components 70 is kept vertical to the axis of the hollow column 30, the conductive components 70 can realize that the power supply 40 is connected with the hollow column 30 in a power supply, and the alarm 50 is kept at the same level, and the alarm 50 is kept at the same time when the axis is inclined, the alarm 50 is kept, and the alarm 50 is not capable of sending out a signal.
When the prefabricated part 10 is lifted, the lifting main rope 60 and the hollow column 30 can be controlled by a crane to move to the upper part of the prefabricated part 10, then a ground worker operates the mounting assembly 20 to mount the prefabricated part 10 on the lower part of the hollow column 30, if the lifting main rope 60 is in an inclined state, the hollow column 30 is correspondingly in an inclined state, the liquid level of the liquid in the hollow column 30 is also in an inclined state compared with the inner wall of the hollow column 30, the conductive assemblies 70 are adaptively slid up and down along the inner wall of the hollow column 30 under the influence of the liquid level, the plane surrounded by the conductive assemblies 70 is in an inclined state with the axis of the hollow column 30, the power supply 40 cannot supply power to the alarm 50 through the conductive assemblies 70, the alarm 50 cannot send an alarm signal, and the ground worker can judge that the lifting main rope 60 is in an inclined state according to the characteristic that the alarm 50 cannot send the alarm signal, at this time, ground staff can contact with the high-altitude staff handling the crane through the interphone, the high-altitude staff adjusts the position of the crane to adjust the lifting main rope 60 to the vertical state, after the lifting main rope 60 is adjusted to the vertical state, the hollow cylinder 30 is adjusted to the vertical state synchronously, the plurality of conductive assemblies 70 are adaptively slid up and down along the inner wall of the hollow cylinder 30 under the influence of the liquid level, so that the plane surrounded by the plurality of conductive assemblies 70 is kept in the vertical state with the axis of the hollow cylinder 30, at this time, the power supply 40 can supply power to the alarm 50 through the plurality of conductive assemblies 70, the alarm 50 sends an alarm signal, the ground staff can judge that the lifting main rope 60 is adjusted to the vertical state according to the characteristic that the alarm 50 sends the alarm signal, the high-altitude staff can handle the crane to wind the lifting main rope 60, and further, the prefabricated elements 10 are smoothly lifted off the ground in the vertical direction.
Referring to fig. 3, in one embodiment, the mounting assembly 20 includes a hanger 201, a hanging ring 202, and a plurality of auxiliary lifting ropes 203, one end of each auxiliary lifting rope 203 is connected to the upper edge of the prefabricated part 10, the other end is connected to the hanging ring 202, and the hanger 201 is mounted at the bottom of the hollow cylinder 30 and is matched with the hanging ring 202, so as to mount the prefabricated part 10.
After the crane controls the lifting main rope 60 and the hollow column 30 to move above the prefabricated part 10, a ground worker can hook the hanging ring 202 with the hanging hook 201, and after the lifting main rope 60 is adjusted to be in a vertical state, the crane winds the lifting main rope 60, so that the prefabricated part 10 is stably lifted off the ground along the vertical direction.
Referring to fig. 4, in one embodiment, the plurality of conductive assemblies 70 have the same structure and each include a conductive block 701, one side of each conductive block 701 is connected with a group of buoyancy support assemblies 80, one end of each group of buoyancy support assemblies 80, which is far away from the corresponding conductive block 701, is in contact with the liquid surface of the liquid, a conductive sheet 702 is disposed between two adjacent groups of conductive blocks 701, the conductive sheet 702 is fixedly disposed on the inner wall of the hollow cylinder 30, and the power source 40 and the alarm 50 are connected with one group of conductive sheets 702 through wires.
When ground staff operates the mounting assembly 20 to mount the prefabricated member 10 on the lower portion of the hollow cylinder 30, if the main rope 60 and the hollow cylinder 30 are lifted to be inclined, the liquid level of the liquid in the hollow cylinder 30 and the axis of the hollow cylinder 30 are kept to be inclined, at this time, one end of the plurality of buoyancy support assemblies 80, which is far away from the corresponding conductive block 701, floats on the liquid level, the buoyancy support assemblies 80 can push the corresponding conductive block 701 to slide up and down adaptively along the inner wall of the hollow cylinder 30, so that the plane enclosed between the plurality of conductive blocks 701 and the axis of the hollow cylinder 30 are kept to be inclined, the plurality of conductive blocks 701 are separated from the adjacent conductive sheets 702 to be staggered, at this time, the power supply 40 cannot supply power to the alarm 50 through the plurality of conductive blocks 701 and the plurality of conductive sheets 702, the alarm 50 cannot send an alarm signal, the ground staff can judge that the lifting main rope 60 is in an inclined state according to the characteristic that the alarm 50 cannot send an alarm signal, at this time, the ground staff contacts with the high-altitude staff operating the crane through the interphone, the high-altitude staff adjusts the position of the crane to drive the upper end of the lifting main rope 60 to swing so as to adjust the lifting main rope 60 to a vertical state, after the lifting main rope 60 is adjusted to the vertical state, the hollow column 30 is synchronously adjusted to the vertical state, the liquid level of the liquid in the hollow column 30 can be kept vertical to the axis of the hollow column 30, the buoyancy support assembly 80 can push the corresponding conductive blocks 701 to slide up and down along the inner wall of the hollow column 30 in an adaptive manner, so that a plane enclosed by the conductive blocks 701 is kept vertical to the axis of the hollow column 30, the conductive blocks 701 are moved between the adjacent conductive blocks 702 again and are contacted with the adjacent conductive blocks 702, at this time, the plurality of conductive blocks 701 and the plurality of conductive sheets 702 may form a loop between the power supply 40 and the alarm 50, through which the power supply 40 supplies power to the alarm 50, the alarm 50 sends an alarm signal, and a ground worker determines that the lifting main rope 60 has been adjusted to a vertical state according to the characteristic that the alarm 50 sends the alarm signal, and the high-altitude worker can operate the crane to wind the lifting main rope 60, so as to stably lift the prefabricated member 10 off the ground along the vertical direction.
Referring to fig. 4, in one embodiment, the buoyancy support assembly 80 includes an L-shaped support rod 801 and a floating ball 802, wherein one end of the L-shaped support rod 801 is connected to the conductive block 701, and the other end is connected to the floating ball 802, and the floating ball 802 floats on the surface of the liquid.
In one embodiment, the floating ball 802 may be a rubber floating ball, or a foam floating ball, which is not limited herein, and the floating ball 802 may be a solid structure, or a hollow structure, which is not limited herein.
Referring to fig. 4, in one embodiment, a plurality of guide rails 301 distributed along the length direction of the hollow cylinder 30 are fixedly disposed on the inner wall of the hollow cylinder 30, the number of the plurality of guide rails 301 is the same as the number of the plurality of conductive blocks 701, and each group of conductive blocks 701 is slidably engaged with one group of guide rails 301.
In one embodiment, the liquid is preferably a non-conductive liquid, such as glycerol, pure water, or an ethanol solution.
In one embodiment, the alarm 50 may be a buzzer or a light emitting diode, which is not limited herein.
In one embodiment, the alarm 50 has a switch button that can be manually turned off to turn off the alarm signal, and when the lifting main rope 60 is adjusted to be in a vertical state, a ground worker can press the switch button, so as to release the alarm of the alarm 50, so that the prefabricated part is prevented from always sending an alarm signal during the lifting process.
In the embodiment of the present invention, when the prefabricated part 10 is lifted, the crane can be used to control the lifting main rope 60 and the hollow column 30 to move above the prefabricated part 10, then the ground staff operates the mounting assembly 20 to mount the prefabricated part 10 on the lower part of the hollow column 30, if the lifting main rope 60 is in an inclined state, the hollow column 30 is correspondingly in an inclined state, the liquid level of the liquid in the hollow column 30 is also in an inclined state compared with the inner wall of the hollow column 30, the plurality of conductive assemblies 70 are adaptively slid up and down along the inner wall of the hollow column 30 under the influence of the liquid level, so that the plane surrounded by the plurality of conductive assemblies 70 and the axis of the hollow column 30 are kept in an inclined state, the power supply 40 cannot supply power to the alarm 50 through the plurality of conductive assemblies 70, and the alarm 50 cannot send an alarm signal, the ground staff can judge that the lifting main rope 60 is in an inclined state according to the characteristic that the alarm 50 cannot send out an alarm signal, at this time, the ground staff can contact with the high-altitude staff operating the crane through the interphone, the high-altitude staff adjusts the position of the crane to adjust the lifting main rope 60 to a vertical state, after the lifting main rope 60 is adjusted to the vertical state, the hollow column 30 is adjusted to the vertical state synchronously, the plurality of conductive assemblies 70 are adaptively slid up and down along the inner wall of the hollow column 30 under the influence of the liquid level, so that the plane surrounded by the plurality of conductive assemblies 70 is kept in the vertical state with the axis of the hollow column 30, at this time, the power supply 40 can supply power to the alarm 50 through the plurality of conductive assemblies 70, the alarm 50 sends out an alarm signal, the ground staff can judge that the lifting main rope 60 is adjusted to the vertical state according to the characteristic that the alarm 50 sends out the alarm signal, the overhead working personnel can control the crane and then roll up the lifting main rope 60, and then hang prefabricated component 10 off the ground steadily along vertical direction, compared with the prior art, when prefabricated component 10 handling, the tilting state that the lifting main rope 60 is in arbitrary angle and optional position can be detected, so that the angle of overhead working personnel quick to lifting main rope 60 is adjusted, the prefabricated component 10 can hang off the ground steadily with vertical gesture, thereby effectively avoided the prefabricated component 10 handling in-process because of receiving the slope pulling force and the ground, the scratch phenomenon takes place for vehicles etc. and reduced the scratch damage probability of prefabricated component 10.
While the preferred embodiments of the present application have been described in detail, the present application is not limited to the above embodiments, and various changes may be made within the knowledge of those skilled in the art without departing from the spirit of the present application.
Claims (4)
1. A hoisting device for a foundation prefabricated part is characterized by comprising a mounting assembly, a hollow cylinder, a power supply, an alarm, a hoisting main rope and a conductive assembly,
the hollow cylinder is internally filled with liquid,
the upper end of the lifting main rope is connected with the crane, the lower end is connected with the upper end of the hollow column,
the mounting component is arranged at the lower end of the hollow column body and is used for mounting the prefabricated component at the lower part of the hollow column body,
the power supply and the alarm are arranged on the side wall of the hollow cylinder,
the conductive components are provided with a plurality of groups, the conductive components are distributed on the inner wall of the hollow cylinder at intervals in a ring shape, the conductive components can slide up and down along the inner wall of the hollow cylinder under the influence of the liquid level change,
when the plane surrounded by the conductive components is vertical to the axis of the hollow cylinder, the conductive components can realize the electric conduction between the power supply and the alarm, the alarm sends out an alarm signal,
when the plane surrounded by the conductive components and the axis of the hollow cylinder keep inclined, the alarm is powered off, so that an alarm signal can not be sent out,
the conductive components have the same structure and all comprise conductive blocks,
one side of each group of conductive blocks is connected with a group of buoyancy supporting components, one end of each group of buoyancy supporting components, which is far away from the corresponding conductive block, is contacted with the liquid level of the liquid,
a conductive sheet is arranged between two adjacent groups of conductive blocks, the conductive sheet is fixedly arranged on the inner wall of the hollow cylinder, the power supply and the alarm are connected with one group of conductive sheets through wires,
the buoyancy support component comprises an L-shaped support rod and a floating ball,
one end of the L-shaped supporting rod is connected with the conductive block, the other end of the L-shaped supporting rod is connected with the floating ball, the floating ball floats on the liquid surface of the liquid,
the inner wall of the hollow cylinder is fixedly provided with a plurality of guide rails distributed along the length direction of the hollow cylinder, the number of the guide rails is the same as that of the conductive blocks, each group of conductive blocks is in sliding fit with one group of guide rails,
the liquid is a non-conductive liquid.
2. A basic prefabricated component lifting device according to claim 1, wherein the mounting assembly comprises a hanger, a hanging ring and a plurality of lifting auxiliary ropes,
and one ends of the lifting auxiliary ropes are connected with the upper edge of the prefabricated part, the other ends of the lifting auxiliary ropes are connected with the hanging rings, and the hooks are arranged at the bottom of the hollow cylinder and matched with the hanging rings to realize the mounting of the prefabricated part.
3. The foundation preform trolley of claim 1, wherein the float is a rubber float or a foam float.
4. A foundation prefabricated element lifting device according to claim 1, wherein said floating ball is of solid or hollow construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311523765.9A CN117246908B (en) | 2023-11-16 | 2023-11-16 | Basic prefabricated part overhead hoist |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311523765.9A CN117246908B (en) | 2023-11-16 | 2023-11-16 | Basic prefabricated part overhead hoist |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117246908A CN117246908A (en) | 2023-12-19 |
| CN117246908B true CN117246908B (en) | 2024-02-02 |
Family
ID=89126693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311523765.9A Active CN117246908B (en) | 2023-11-16 | 2023-11-16 | Basic prefabricated part overhead hoist |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117246908B (en) |
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| CN111765866A (en) * | 2020-08-06 | 2020-10-13 | 安顺中安安装工程有限公司 | Tower crane slope overrun monitoring devices |
| CN113415730A (en) * | 2021-06-18 | 2021-09-21 | 德兰华创(杭州)智慧科技有限公司 | Oblique-pulling alarm device for hoisting steel wire rope |
| CN218708817U (en) * | 2022-09-19 | 2023-03-24 | 青岛动车小镇昌明装配建筑科技有限公司 | Prefabricated component lifts by crane frock |
| CN218579494U (en) * | 2022-12-02 | 2023-03-07 | 河南卫华重型机械股份有限公司 | Crane steel wire rope anti-diagonal-pulling protection device |
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| CN117246908A (en) | 2023-12-19 |
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