CN111891917A - Avoid assembled for building hoisting device who rocks - Google Patents
Avoid assembled for building hoisting device who rocks Download PDFInfo
- Publication number
- CN111891917A CN111891917A CN202010779435.6A CN202010779435A CN111891917A CN 111891917 A CN111891917 A CN 111891917A CN 202010779435 A CN202010779435 A CN 202010779435A CN 111891917 A CN111891917 A CN 111891917A
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- Prior art keywords
- fixed
- lifting hook
- motor
- take
- wire rope
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- 239000011435 rock Substances 0.000 title claims abstract description 10
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 22
- 239000010959 steel Substances 0.000 claims abstract description 22
- 230000000670 limiting effect Effects 0.000 claims abstract description 9
- 230000007246 mechanism Effects 0.000 claims description 10
- 230000009471 action Effects 0.000 claims description 8
- 238000005096 rolling process Methods 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 7
- 230000035939 shock Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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- 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
- B66C13/06—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for minimising or preventing longitudinal or transverse swinging of loads
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/04—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes with jibs the effective length of which is variable in operation, e.g. longitudinally displaceable, extensible
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention discloses an assembled type hoisting device for buildings, which avoids shaking and comprises a bearing seat, a first fixing rod and a second fixing rod, wherein a fixing frame is fixed at the upper end of the bearing seat, a first motor is fixed in the fixing frame, a screw rod is fixed on an output shaft of the first motor, a limiting block is fixed on the screw rod, the second fixing rod is fixed on a steel wire rope, a lifting hook is fixed at the tail end of the steel wire rope, a convex circle is arranged on the inner side of the lifting hook, a fixing shaft is fixed at the upper end of the lifting hook, a rotating plate is fixed on a bearing on the fixing shaft, and the rotating plate is connected with the lifting hook through a torsion spring. This avoid assembled hoisting device for building who rocks adopts movable hoisting structure, and the convenience removes and loads and unloads the accessory of hoist and mount, compares in traditional small-size loop wheel machine and rotates the loop wheel machine through the manpower and unload convenient laborsavingly more to adopt shock attenuation limit structure, prevent that the lifting rope from rocking at the hoist and mount in-process, avoid the emergence of incident.
Description
Technical Field
The invention relates to the technical field of assembly type buildings, in particular to a hoisting device for an assembly type building, which avoids shaking.
Background
The assembly type building is that the building is cut into blocks by dividing, then the mass production is carried out by technical means, and finally the assembly is carried out by splicing and fixing, so that the efficiency is higher than that of the traditional artificial stacking construction mode, and manpower and material resources are greatly saved.
Along with the development of modern industrial technology, one of the assembly type buildings is new and emerging building mode is more and more wide by the application because of it can save a large amount of costs, and when carrying out the assembly type building installation, generally need hoist and mount building accessories through the loop wheel machine, and current assembly type building is mostly traditional small-size hoisting machine with the loop wheel machine, and this hoisting machine has simple structure, and stability is not high and hoist and mount accessory easily rock the scheduling problem, so the urgent need is improved traditional assembly type building hoist device to above-mentioned problem.
Disclosure of Invention
The invention aims to provide an assembly type building hoisting device capable of avoiding shaking, and aims to solve the problems that the structure is simple, the stability is not high, and hoisting accessories are easy to shake in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a shaking-preventing assembly type hoisting device for buildings comprises a bearing seat, a first fixing rod and a second fixing rod, wherein a fixing frame is fixed at the upper end of the bearing seat, a first motor is fixed in the fixing frame, a lead screw is fixed on an output shaft of the first motor, a limiting block is fixed on the lead screw, a movable plate is arranged on the lead screw, a roller is fixed on a bearing on the movable plate and is arranged in a guide groove, the guide groove is formed in the fixing frame, the upper end of the first fixing rod is fixed on the movable plate, the lower end of the first fixing rod is fixed on a take-up box, a second motor is fixed in the take-up box, a take-up wheel is fixed at the tail end of an output shaft of the second motor, a steel wire rope is arranged in the take-up wheel, the steel wire rope is connected with the guide wheel, the guide wheel is fixed on the take, the fixed block is fixed on the take-up box through first spring, the second dead lever is fixed on wire rope, and the wire rope end is fixed with the lifting hook to the lifting hook inboard is provided with the bulge, and the lifting hook upper end is fixed with the fixed axle simultaneously, the bearing is fixed with the commentaries on classics board on the fixed axle, and changes the board and pass through torsion spring and lifting hook interconnect.
Preferably, the movable plate is in threaded connection with the screw rod, and the movable plate is in rolling connection with the fixed frame through the roller.
Preferably, the steel wire rope, the guide wheels and the fixing block are connected in a sliding mode, and the number of the guide wheels is 2.
Preferably, the fixed blocks are symmetrically distributed about the central line of the take-up box, and the fixed blocks and the take-up box form an elastic mechanism through a first spring.
Preferably, the tail end of the lifting hook is connected with the tail end of the rotating plate in a clamping mode, and the tail end of the lifting hook is distributed in an inclined mode.
Preferably, the rotating plate and the fixed shaft form a rotating mechanism through a bearing, and the rotating plate and the lifting hook form an elastic mechanism through a torsion spring.
Compared with the prior art, the invention has the beneficial effects that: this avoid assembled hoisting device for building who rocks adopts movable hoisting structure, and the convenience removes and loads and unloads the accessory of hoist and mount, compares in traditional small-size loop wheel machine and rotates the loop wheel machine through the manpower and unload convenient laborsavingly more to adopt shock attenuation limit structure, prevent that the lifting rope from rocking at the hoist and mount in-process, avoid the emergence of incident.
Through controlling the rotation of the first motor, the movable plate drives the hoisting mechanism to move left and right under the action of the lead screw, the limiting block, the movable plate, the idler wheels and the guide groove, and the hoisted accessories are conveniently assembled and disassembled.
Through the rotation of control second motor, the effect of cooperation take-up pulley, leading wheel, fixed block, first spring and second dead lever makes wire rope when rising to the hoist and mount goods, can reset the lifting rope who rocks to make the hoist and mount accessory more stable fast, avoid the accessory to rock and cause the accessory to damage.
Drawings
FIG. 1 is a front view of the load bearing seat of the present invention;
FIG. 2 is an enlarged view of the structure at A in FIG. 1 according to the present invention;
FIG. 3 is a schematic side view of a cross-sectional structure of the fixing frame of the present invention;
FIG. 4 is a schematic top view of the fixing block of the present invention;
FIG. 5 is a schematic view of a front view of the hook of the present invention;
fig. 6 is a right-view structural schematic diagram of the lifting hook of the invention.
In the figure: 1. a load bearing seat; 2. a fixed mount; 3. a first motor; 4. a screw rod; 5. a limiting block; 6. a movable plate; 7. a roller; 8. a guide groove; 9. a first fixing lever; 10. a wire collection box; 11. a second motor; 12. a take-up pulley; 13. a wire rope; 14. a guide wheel; 15. a fixed block; 16. a first spring; 17. a second fixing bar; 18. a hook; 19. convex round; 20. a fixed shaft; 21. rotating the plate; 22. a torsion spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, the present invention provides a technical solution: an assembly type hoisting device for buildings capable of avoiding shaking comprises a bearing seat 1, a fixed frame 2, a first motor 3, a screw rod 4, a limiting block 5, a movable plate 6, a roller 7, a guide groove 8, a first fixed rod 9, a take-up box 10, a second motor 11, a take-up pulley 12, a steel wire rope 13, a guide pulley 14, a fixed block 15, a first spring 16, a second fixed rod 17, a lifting hook 18, a convex circle 19, a fixed shaft 20, a rotating plate 21 and a torsion spring 22, wherein the upper end of the bearing seat 1 is fixed with the fixed frame 2, the fixed frame 2 is internally fixed with the first motor 3, an output shaft of the first motor 3 is fixed with the screw rod 4, the limiting block 5 is fixed on the screw rod 4, the movable plate 6 is arranged on the screw rod 4, the roller 7 is fixed on a bearing on the movable plate 6, the roller 7 is arranged in the guide groove 8, the guide groove 8 is arranged on the fixed frame 2, the upper end of the, the lower end of the first fixing rod 9 is fixed on the wire rewinding box 10, a second motor 11 is fixed in the wire rewinding box 10, a wire rewinding wheel 12 is fixed at the tail end of an output shaft of the second motor 11, a steel wire rope 13 is arranged in the wire rewinding wheel 12, the steel wire rope 13 is connected with a guide wheel 14, the guide wheel 14 is fixed on the wire rewinding box 10, the steel wire rope 13 penetrates through a fixing block 15, the fixing block 15 is fixed on the wire rewinding box 10 through a first spring 16, the second fixing rod 17 is fixed on the steel wire rope 13, a lifting hook 18 is fixed at the tail end of the steel wire rope 13, a convex circle 19 is arranged on the inner side of the lifting hook 18, a fixing shaft 20 is fixed at the upper end of the lifting hook 18, a rotating plate 21 is fixed on a bearing on.
The movable plate 6 is in threaded connection with the screw rod 4, the movable plate 6 is in rolling connection with the fixing frame 2 through the roller 7, the movable plate 6 is guaranteed to drive the hoisting accessory to stably and slowly move, and the hoisting accessory is prevented from shaking due to vibration generated in the moving process.
The fixed block 15 is the symmetric distribution about the central line of collection line case 10, and fixed block 15 constitutes elastic mechanism through first spring 16 and collection line case 10, guarantees to rise when the in-process production rocks at wire rope 13, can reset through the elastic action of first spring 16 to guarantee the stability of the in-process that rises.
The end of the lifting hook 18 is connected with the end of the rotating plate 21 in a clamping mode, the end of the lifting hook 18 is distributed in an inclined mode, the rotating plate 21 can only rotate inwards and cannot rotate outwards, the situation that the accessory is separated from the lifting hook 18 to cause damage in the hoisting process is avoided, and the convex circle 19 arranged in the lifting hook 18 can prevent the accessory from moving in the lifting hook 18 to drive the steel wire rope 13 to shake.
The rotating plate 21 and the fixed shaft 20 form a rotating mechanism through a bearing, the rotating plate 21 and the lifting hook 18 form an elastic mechanism through the torsion spring 22, the accessory is lifted through pressing the rotating plate 21, the rotating plate 21 is reset under the action of the torsion spring 22 and matched with the lifting hook 18 after the rotating plate 21 is loosened, the lifted accessory is locked, and the accessory is prevented from sliding off.
The working principle is as follows: when the device is used, firstly, the bearing seat 1 is fixed, the second motor 11 is electrified to drive the output shaft to rotate, then the take-up pulley 12 is driven to rotate for paying off, the lifting hook 18 descends under the action of the gravity of the guide wheel 14 and the lifting hook 18, when the lifting hook descends to a proper position, the rotating plate 21 is pressed to hang the lifting hook 18 on an accessory, the rotating plate 21 is loosened, the rotating plate 21 is reset under the action of the torsion spring 22, and therefore the connection between the accessory and the lifting hook 18 is completed, as shown in fig. 5;
after connection, the second motor 11 is rotated reversely, the take-up pulley 12 is taken up by the principle to drive the lifting hooks 18 to ascend, when wind drives the accessories to shake, the second fixing rod 17 controls the distance between the two steel wire ropes 13, so that the two lifting hooks 18 are guaranteed to shake at the same amplitude, the steel wire ropes 13 are further enabled to extrude the fixing blocks 15, the first springs 16 on the two sides of the steel wire ropes 13 are respectively stretched and contracted, the steel wire ropes 13 are enabled to quickly and stably stop shaking under the elastic force of the first springs 16, and the stability of hoisting is guaranteed;
after the accessory rises to the fixed position, the first motor 3 is electrified to drive the output shaft to rotate, so that the screw rod 4 is driven to rotate, the movable plate 6 is driven to move leftwards by matching with the sliding limiting effect between the roller 7 and the guide groove 8, the first fixed rod 9 and the wire collecting box 10 are driven to move, the hoisting accessory is driven to move, after the accessory is moved to a proper position, the accessory is put down according to the principle, and the working principle of the assembly type hoisting device for the building, which is used for avoiding shaking, is adopted.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides an avoid assembled hoisting device for building who rocks, includes bearing seat (1), first dead lever (9) and second dead lever (17), its characterized in that: a fixed frame (2) is fixed at the upper end of the bearing seat (1), a first motor (3) is fixed in the fixed frame (2), a lead screw (4) is fixed on an output shaft of the first motor (3), a limiting block (5) is fixed on the lead screw (4), a movable plate (6) is arranged on the lead screw (4), a roller (7) is fixed on a bearing on the movable plate (6), the roller (7) is arranged in a guide groove (8), the guide groove (8) is arranged on the fixed frame (2), the upper end of a first fixed rod (9) is fixed on the movable plate (6), the lower end of the first fixed rod (9) is fixed on a take-up box (10), a second motor (11) is fixed in the take-up box (10), a take-up wheel (12) is fixed at the tail end of an output shaft of the second motor (11), and a steel wire rope (13) is arranged in the take-up wheel (12), and wire rope (13) and leading wheel (14) interconnect to leading wheel (14) are fixed on collection line case (10), and fixed block (15) are run through in wire rope (13) simultaneously, fixed block (15) are fixed on collection line case (10) through first spring (16), second dead lever (17) are fixed on wire rope (13), and wire rope (13) end is fixed with lifting hook (18), and lifting hook (18) inboard is provided with bulge circle (19), and lifting hook (18) upper end is fixed with fixed axle (20) simultaneously, the bearing is fixed with commentaries on classics board (21) on fixed axle (20), and commentaries on classics board (21) pass through torsion spring (22) and lifting hook (18) interconnect.
2. The fabricated building hoist device for preventing shaking according to claim 1, wherein: the movable plate (6) is in threaded connection with the screw rod (4), and the movable plate (6) is in rolling connection with the fixed frame (2) through the roller (7).
3. The fabricated building hoist device for preventing shaking according to claim 1, wherein: the steel wire rope (13) is in sliding connection with the guide wheels (14) and the fixing blocks (15), and the number of the guide wheels (14) is 2.
4. The fabricated building hoist device for preventing shaking according to claim 1, wherein: the fixed blocks (15) are symmetrically distributed about the central line of the take-up box (10), and the fixed blocks (15) and the take-up box (10) form an elastic mechanism through first springs (16).
5. The fabricated building hoist device for preventing shaking according to claim 1, wherein: the tail end of the lifting hook (18) is connected with the tail end of the rotating plate (21) in a clamping mode, and the tail end of the lifting hook (18) is distributed in an inclined mode.
6. The fabricated building hoist device for preventing shaking according to claim 1, wherein: the rotating plate (21) and the fixed shaft (20) form a rotating mechanism through a bearing, and the rotating plate (21) and the lifting hook (18) form an elastic mechanism through a torsion spring (22).
7. The fabricated building hoist device for preventing shaking according to claim 1, wherein: the concrete working principle of the hoisting device is as follows: when the device is used, firstly, the bearing seat (1) is fixed, the second motor (11) is electrified to drive the output shaft to rotate, the take-up pulley (12) is further driven to rotate for paying off, the lifting hook (18) descends under the action of the gravity of the guide wheel (14) and the lifting hook (18), when the lifting hook descends to a proper position, the rotating plate (21) is pressed to hang the lifting hook (18) on an accessory, the rotating plate (21) is loosened, the rotating plate (21) is reset under the action of the torsion spring (22), and therefore the accessory is connected with the lifting hook (18);
after connection, the second motor (11) is rotated reversely, the take-up pulley (12) is taken up by the principle to drive the lifting hooks (18) to ascend, when wind drives the accessories to shake, the distance between the two steel wire ropes (13) is controlled by the second fixing rod (17), so that the two lifting hooks (18) are guaranteed to shake at the same amplitude, the steel wire ropes (13) extrude the fixing block (15), the first springs (16) on the two sides of the steel wire ropes (13) are stretched and contracted respectively, and the steel wire ropes (13) are quickly and stably stopped to shake under the action of the elastic force of the first springs (16), so that the stability of hoisting is guaranteed;
after the accessory rises to the fixed position, the first motor (3) is electrified to drive the output shaft to rotate, so that the screw rod (4) is driven to rotate, the movable plate (6) is driven to move leftwards by matching with the sliding limiting effect between the roller (7) and the guide groove (8), the first fixed rod (9) and the wire collecting box (10) are driven to move, the hoisting accessory is driven to move, and the accessory is put down according to the principle after being moved to a proper position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010779435.6A CN111891917A (en) | 2020-08-05 | 2020-08-05 | Avoid assembled for building hoisting device who rocks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010779435.6A CN111891917A (en) | 2020-08-05 | 2020-08-05 | Avoid assembled for building hoisting device who rocks |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111891917A true CN111891917A (en) | 2020-11-06 |
Family
ID=73245763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010779435.6A Pending CN111891917A (en) | 2020-08-05 | 2020-08-05 | Avoid assembled for building hoisting device who rocks |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111891917A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112340599A (en) * | 2020-11-26 | 2021-02-09 | 济南一建集团有限公司 | Freely-adjustable assembly type hoisting device for building wallboard |
| CN112607615A (en) * | 2020-12-10 | 2021-04-06 | 芜湖品金电器科技有限公司 | Movable and stable large-batch lifting appliance |
| CN115924735A (en) * | 2023-02-28 | 2023-04-07 | 河南省优起重型起重机械有限公司 | A hoisting and stabilizing mechanism of a European-style crane |
| CN118083794A (en) * | 2024-04-28 | 2024-05-28 | 河南省第二建筑工程发展有限公司 | Steel construction hoist device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3825128A (en) * | 1971-08-23 | 1974-07-23 | Fruehauf Corp | Sway-arrest system |
| CN201923779U (en) * | 2011-01-20 | 2011-08-10 | 阜宁县石油机械有限公司 | Symmetrical bidirectional lifting hook for oil derrick hoisting |
| CN207483253U (en) * | 2017-11-16 | 2018-06-12 | 郭若男 | A kind of construction weight handling appliance |
| CN210064976U (en) * | 2019-05-29 | 2020-02-14 | 山东万泰印业有限公司 | Film blowing material lifting and unloading device |
| CN210655827U (en) * | 2019-07-31 | 2020-06-02 | 宁夏共享精密加工有限公司 | Hook anti-unhooking device |
| CN210763995U (en) * | 2019-09-09 | 2020-06-16 | 铜陵市特种设备监督检验中心 | Anti-collision protection device for hoisting of crane |
| CN210795604U (en) * | 2019-08-22 | 2020-06-19 | 漳州市横星机械设备有限公司 | Hoist engine for building engineering |
-
2020
- 2020-08-05 CN CN202010779435.6A patent/CN111891917A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3825128A (en) * | 1971-08-23 | 1974-07-23 | Fruehauf Corp | Sway-arrest system |
| CN201923779U (en) * | 2011-01-20 | 2011-08-10 | 阜宁县石油机械有限公司 | Symmetrical bidirectional lifting hook for oil derrick hoisting |
| CN207483253U (en) * | 2017-11-16 | 2018-06-12 | 郭若男 | A kind of construction weight handling appliance |
| CN210064976U (en) * | 2019-05-29 | 2020-02-14 | 山东万泰印业有限公司 | Film blowing material lifting and unloading device |
| CN210655827U (en) * | 2019-07-31 | 2020-06-02 | 宁夏共享精密加工有限公司 | Hook anti-unhooking device |
| CN210795604U (en) * | 2019-08-22 | 2020-06-19 | 漳州市横星机械设备有限公司 | Hoist engine for building engineering |
| CN210763995U (en) * | 2019-09-09 | 2020-06-16 | 铜陵市特种设备监督检验中心 | Anti-collision protection device for hoisting of crane |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112340599A (en) * | 2020-11-26 | 2021-02-09 | 济南一建集团有限公司 | Freely-adjustable assembly type hoisting device for building wallboard |
| CN112340599B (en) * | 2020-11-26 | 2023-01-20 | 济南一建集团有限公司 | Freely-adjustable assembly type hoisting device for building wallboard |
| CN112607615A (en) * | 2020-12-10 | 2021-04-06 | 芜湖品金电器科技有限公司 | Movable and stable large-batch lifting appliance |
| CN115924735A (en) * | 2023-02-28 | 2023-04-07 | 河南省优起重型起重机械有限公司 | A hoisting and stabilizing mechanism of a European-style crane |
| CN118083794A (en) * | 2024-04-28 | 2024-05-28 | 河南省第二建筑工程发展有限公司 | Steel construction hoist device |
| CN118083794B (en) * | 2024-04-28 | 2024-07-19 | 河南省第二建筑工程发展有限公司 | Steel construction hoist device |
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Application publication date: 20201106 |
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| RJ01 | Rejection of invention patent application after publication |