CN116199102B - Lifting hook structure of crane - Google Patents
Lifting hook structure of crane Download PDFInfo
- Publication number
- CN116199102B CN116199102B CN202310487200.3A CN202310487200A CN116199102B CN 116199102 B CN116199102 B CN 116199102B CN 202310487200 A CN202310487200 A CN 202310487200A CN 116199102 B CN116199102 B CN 116199102B
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- China
- Prior art keywords
- locking
- hook body
- lifting hook
- locking part
- rotating shaft
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Classifications
-
- 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
- B66C1/22—Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks
- B66C1/34—Crane hooks
- B66C1/36—Crane hooks with means, e.g. spring-biased detents, for preventing inadvertent disengagement of loads
-
- 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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
The invention relates to the technical field of cranes and discloses a lifting hook structure of a crane, which comprises a lifting hook body, wherein a notch is formed in the lifting hook body, and the lifting hook body can penetrate through a lifting part of a suspended object through the notch. This lifting hook structure of hoist, when using, pass the hoist portion of hanging the thing with the lifting hook body through the breach, make the hoist portion of hanging the thing contact with the inboard of movable part, when upwards pulling the lifting hook body through the hoist, under the action of gravity of hanging the thing, movable part promotes first locking part and second locking part upset, thereby lock the hoist portion of hanging the thing, in order to avoid hanging the hoist portion of hanging the thing and breaking away from the lifting hook body when the thing rocks because of inertial reason, movable part can drive the drive assembly operation simultaneously, make sealing portion upset and carry out the closure to the breach of lifting hook body, thereby carry out the secondary locking to the hoist portion of hanging the thing.
Description
Technical Field
The invention relates to the technical field of cranes, in particular to a lifting hook structure of a crane.
Background
The crane hook is the most common lifting appliance in the hoisting machinery, and is hung on a steel wire rope of a hoisting mechanism by means of pulley blocks and other parts, and the lifting hook is divided into a single hook and a double hook according to the shape; the single hook is simple to manufacture and convenient to use, but has poor stress condition, is mostly used in working occasions with the lifting weight of less than 80 tons, the lifting weight is often divided into a forging lifting hook and a lamination lifting hook by a manufacturing method, the lamination lifting hook is formed by riveting a plurality of cut and formed steel plates, the whole lifting hook cannot be damaged when a crack appears on individual plates, the safety is good, but the self weight is large, the single hook is mostly used on a crane with the lifting weight or a steel ladle lifting bucket, the lifting hook is frequently impacted in the working process, the lifting hook is required to be manufactured by high-quality carbon steel with good toughness, the existing crane lifting hook is generally used for hooking the lifting hook on a suspended object, the crane is started to lift the suspended object upwards, the suspended object is easily to shake under the inertia effect in the process of driving the suspended object to move, and once the shaking amplitude is too large, the suspended object is easily separated from the lifting hook, and the suspended object has a certain danger.
Disclosure of Invention
The invention aims to provide a lifting hook structure of a crane, which solves the problems in the prior art.
The embodiment of the application adopts the following technical scheme:
the lifting hook structure of the crane comprises a lifting hook body, wherein the lifting hook body can hoist a suspended object, a notch is formed in the lifting hook body, and the lifting hook body can penetrate through the hoisting part of the suspended object through the notch; the locking mechanism is connected to the lifting hook body and can lock the lifting part of the suspended object, and comprises a movable part, a first locking part and a second locking part, wherein the movable part can push the first locking part and the second locking part to change from a first state to a second state; the sealing mechanism is connected between the locking mechanism and the lifting hook body and can lock the lifting position of the suspended object for the second time, and comprises a sealing part which can be turned over and seal the notch.
Preferably, the locking mechanism further comprises a reset component connected to the movable portion, and the reset component can drive the movable portion to reset when the movable portion is not stressed, so that the first locking portion and the second locking portion can unlock the hanging object hanging portion.
Preferably, the reset assembly comprises a guide piece, the guide piece penetrates through the bottom of the lifting hook body and is connected with a connecting arm, a first elastic part is connected between the connecting arm and the lifting hook body, and the first elastic part can provide power for reset of the movable part.
Preferably, the locking mechanism further comprises two mounting seats connected to the inner bottom side of the lifting hook body, the first locking part and the second locking part are respectively connected to the two mounting seats in a rotating mode, torsion springs are connected between the first locking part and the second locking part and the two mounting seats, and the torsion springs are used for driving the first locking part and the second locking part to be converted from the second state to the first state when the first locking part and the second locking part are not stressed.
Preferably, the sealing mechanism further comprises a supporting seat connected to the notch, a first rotating shaft is rotatably connected to the supporting seat, the sealing portion is connected to the first rotating shaft, and the sealing portion can turn over with the first rotating shaft as an axis.
Preferably, a driving component is connected between the first rotating shaft and the movable part, and the movable part can drive the driving component to operate, so that the first rotating shaft rotates to provide power for overturning the sealing part.
Preferably, the driving assembly comprises a first winding and unwinding disc rotatably connected to the first rotating shaft, a second rotating shaft rotatably connected to the lifting hook body, and a toothed plate connected to the movable portion, wherein the second winding and unwinding disc is rotatably connected to the second rotating shaft, a connecting rope is arranged between the second winding and unwinding disc and the first winding and unwinding disc, a gear is further connected to the second rotating shaft, the toothed plate is connected with the gear in a meshed manner, and the toothed plate can push the gear to rotate, so that the driving assembly operates.
Preferably, the first rotating shaft is connected with a rotating assembly, the rotating assembly comprises a mounting part connected to the first rotating shaft and a rotating part connected between the mounting part and the supporting seat, and the rotating part can drive the first rotating shaft to reset.
Preferably, the sealing mechanism further comprises a damping assembly, the damping assembly comprises a first moving part, a second moving part, a pushing part and a second elastic part, an inclined contact surface is arranged between the first moving part and the second moving part, and when the locking mechanism is reset, the first moving part can push the second moving part to move, so that the second elastic part is compressed.
Preferably, the elastic force of the second elastic part is far smaller than the force of the locking mechanism when the locking mechanism is reset.
The beneficial effects of the invention are as follows:
when the lifting hook is used, the lifting hook body passes through the lifting part of the hanging object through the notch, the lifting part of the hanging object is contacted with the inner side of the movable part, when the lifting hook body is pulled upwards by the crane, the movable part pushes the first locking part and the second locking part to turn over under the gravity action of the hanging object, so that the lifting part of the hanging object is locked, the lifting part of the hanging object is prevented from being separated from the lifting hook body when the hanging object shakes due to inertia, and meanwhile, the movable part can drive the driving assembly to operate, so that the sealing part turns over and closes the notch of the lifting hook body, and the lifting part of the hanging object is locked secondarily.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It will be apparent to those skilled in the art from this disclosure that the drawings described below are merely exemplary and that other embodiments may be derived from the drawings provided without undue effort.
The structures, proportions, sizes, etc. shown in the present specification are shown only for the purposes of illustration and description, and are not intended to limit the scope of the invention, which is defined by the claims, so that any structural modifications, changes in proportions, or adjustments of sizes, which do not affect the efficacy or the achievement of the present invention, should fall within the ambit of the technical disclosure.
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic diagram of the front view of the present invention;
FIG. 3 is a schematic perspective view of a sealing mechanism according to the present invention;
FIG. 4 is a schematic view of a partial perspective of the locking mechanism of the present invention;
FIG. 5 is a schematic perspective view of a reset assembly and damping assembly of the present invention;
FIG. 6 is a schematic cross-sectional view of a damping assembly according to the present invention;
FIG. 7 is a schematic perspective view showing a locking portion of the present invention in an initial state;
fig. 8 is a schematic view showing the front view appearance of the positioning device in the initial state.
In the figure: 1. a hook body; 11. a connection part; 12. a notch; 13. an inner cavity; 2. a locking mechanism; 21. a movable part; 22. an opening; 23. a mounting base; 24. a first locking portion; 25. a second locking portion; 26. a reset assembly; 261. a guide member; 262. a connecting arm; 263. a first elastic portion; 3. a sealing mechanism; 31. a sealing part; 32. a support base; 33. a first rotating shaft; 34. a swivel assembly; 341. a mounting part; 342. a turning part; 35. a drive assembly; 351. a first retractable tray; 352. a second rotating shaft; 353. a second retractable tray; 354. a connecting rope; 355. a gear; 356. a toothed plate; 36. a damping assembly; 361. a first moving part; 362. a mounting shell; 363. a pushing part; 364. a second moving part; 365. and a second elastic part.
Detailed Description
The following describes the embodiments of the present invention further with reference to the drawings.
As shown in fig. 1-8, a hook structure of a crane; including lifting hook body 1, can hoist and mount the suspended solid, so that follow-up hoist will hang the thing and hoist, be connected with locking mechanical system 2 on the lifting hook body 1, locking mechanical system 2 can hang the thing and hang the position of hanging on lifting hook body 1 and lock after hanging the thing unsettled, in order to avoid hanging the thing and shake and appear breaking away from lifting hook body 1's phenomenon because of inertia, be connected with sealing mechanism 3 between lifting hook body 1 and locking mechanical system 2, sealing mechanism 3 can seal lifting hook body 1, thereby further avoid hanging the thing and shake and lead to hanging the thing to break away from lifting hook body 1 because of inertia.
As shown in fig. 1, the top of the hook body 1 is connected with a connecting portion 11, the connecting portion 11 is used for connecting a crane, a notch 12 is formed in the outer side of the hook body 1, and a suspended object is suspended on the hook body 1 through the notch 12, so that the suspended object can be conveniently lifted by a subsequent crane.
As shown in fig. 1, 2, 3, 5, 7 and 8, the locking mechanism 2 includes a movable portion 21 disposed inside the hook body 1, the movable portion 21 is arc-shaped, two openings 22 are disposed inside the movable portion 21, the locking mechanism 2 further includes two mounting seats 23 connected inside the hook body 1, positions of the mounting seats 23 correspond to positions of the two openings 22, a first locking portion 24 and a second locking portion 25 are movably connected to the two mounting seats 23, the first locking portion 24 and the second locking portion 25 correspond to the two openings 22, and a torsion spring is disposed at a joint between the first locking portion 24 and the second locking portion 25 and the two mounting seats 23 for automatic resetting when the first locking portion 24 and the second locking portion 25 are not stressed.
With continued reference to fig. 2, 5 and 7, in the first state, the ends of the first locking portion 24 and the second locking portion 25, which are close to each other, are lifted upwards, when the suspended object is lifted, the hook body 1 is hung on the lifting portion of the suspended object through the notch 12, at this time, the lifting portion of the suspended object contacts with the inner side of the movable portion 21, when the suspended object is lifted upwards, the lifting portion of the suspended object moves to the middle part of the inner bottom side of the movable portion 21 under the action of the arc inner side of the movable portion 21, and the suspended object is pulled upwards, so that the movable portion 21 is close to the inner bottom side of the hook body 1, and simultaneously, the ends of the first locking portion 24 and the second locking portion 25, which are close to each other, are pushed downwards, so as to form the second state (as shown in fig. 2) for locking the lifting portion of the suspended object.
With continued reference to fig. 2 and 5, the bottom of the movable portion 21 is connected with a reset component 26, the reset component 26 includes two sets of guide parts 261, the two sets of guide parts 261 extend from the bottom of the hook body 1, the guide parts 261 include two guide parts, a connecting arm 262 is connected between the two guide parts, the top of the connecting arm 262 is connected with a first elastic part 263, the top of the first elastic part 263 is connected with the bottom of the hook body 1, the first elastic part 263 can be a spring, an elastic sheet or other elastic parts, in this embodiment, the first elastic part 263 is a spring, when the movable portion 21 is stressed, the movable portion 21 is close to the inner bottom side of the hook body 1, the part of the guide part 261 extending out of the bottom of the hook body 1 is lengthened, the connecting arm 262 is far away from the hook body 1, so that the first elastic part 263 is stretched, when the movable portion 21 is not stressed, the first elastic part 263 drives the guide part 263 to move, so that the part of the guide part extending out of the bottom of the hook body 1 is shortened, the movable portion 21 is far away from the inner bottom of the hook body 1, meanwhile, the movable portion 21 is not stressed on the inner bottom side of the first locking portion 24 and the second locking portion 25 is not stressed, and the first locking part 25 is released, and the reset object is automatically forced under the action of the first locking part 25.
As shown in fig. 1-6, the inner side of the hook body 1 is provided with an inner cavity 13, the sealing mechanism 3 comprises a sealing part 31 capable of sealing the notch 12 on the hook body 1, a supporting seat 32 connected to the right end of the notch 12, a driving component 35 rotationally connected to the inner side of the inner cavity 13, and a damping component 36 connected between the bottom of the hook body 1 and the reset component 26, the inner side of the supporting seat 32 is rotationally connected with a first rotating shaft 33, the sealing part 31 is connected to the first rotating shaft 33, the front end and the rear end of the first rotating shaft 33 penetrate through the front side and the rear side of the supporting seat 32 respectively, and are respectively connected with a rotating component 34, the driving component 35 is driven to operate when the movable part 21 is close to the inner bottom side of the hook body 1, so that the driving component 35 drives the first rotating shaft 33 to turn over, thereby the sealing part 31 seals the notch 12 on the hook body 1, further limits the hanging part of the hanger again, further prevents the hanging part of the hanger from being separated from the hook body 1, the damping component 36 can slow down the speed of the reset component 26 to reset the movable part 21, and the hanger from being separated from the movable part 21 in a short time when the hanging part is shaken, the hanging part of the hanger is separated from the movable part 21 in a short time, the front end and the rear end of the movable part 31 is prevented from exceeding the gap 31 due to the gap 31 between the sealing part 31 and the gap 31.
With continued reference to fig. 5, the revolving assembly 34 includes an installation portion 341 connected to the first rotating shaft 33, a revolving portion 342 is connected between the installation portion 341 and the support base 32, the revolving portion 342 may be a torsion spring, an elastic member or other components with a revolving reset function, in this embodiment, the revolving portion 342 is a torsion spring, when the first rotating shaft 33 is driven by the driving assembly 35, the first rotating shaft 33 can be driven to rotate, so that the notch 12 on the hook body 1 is closed by the sealing portion 31, and the revolving portion 342 is twisted, when the driving assembly 35 is reversely driven, the first rotating shaft 33 is not stressed any more, and the first rotating shaft 33 is driven to reversely rotate under the action of the revolving portion 342, so that the notch 12 is opened by the sealing portion 31, so that the hook body 1 is conveniently removed from the hanging position of the suspended object.
With continued reference to fig. 5, the driving assembly 35 includes a first winding and unwinding disc 351 connected to the first rotating shaft 33, a second rotating shaft 352 rotatably connected to the bottom end of the inner cavity 13, and a toothed plate 356 connected to the bottom of the movable portion 21, the second rotating shaft 352 is connected to the second winding and unwinding disc 353 and a gear 355, a connection rope 354 is connected between the second winding and unwinding disc 353 and the first winding and unwinding disc 351, the connection rope 354 may be a rope made of steel, nylon or other materials, in this embodiment, the connection rope 354 is a steel rope, which is more durable, the toothed plate 356 passes through the bottom of the hook body 1 and is engaged with the gear 355, and when the toothed plate 356 moves downward, the toothed plate 355 can be driven to rotate counterclockwise, so that the second rotating shaft 352 rotates counterclockwise, the connection rope 354 is wound up by the second winding and unwinding disc 351, and the first rotating shaft 33 rotates clockwise, and further drives the sealing opening 12 on the hook body 1 by the first rotating shaft 33.
With continued reference to fig. 5 and 6, the damping assembly 36 includes a first moving portion 361 connected to the connecting arm 262, and a mounting shell 362 connected to the bottom of the hook body 1, a pushing portion 363 is inserted on the mounting shell 362, a second moving portion 364 is connected to the pushing portion 363, a second elastic portion 365 is connected to the inner side of the mounting shell 362, the second elastic portion 365 may be a spring, an elastic sheet or other component with an elastic function, in this embodiment, the second elastic portion 365 is a spring, the second elastic portion 365 is connected to the second moving portion 364, an inclined contact surface is provided between the second moving portion 364 and the first moving portion 361, and the first moving portion 361 can push the second moving portion 364 along with the upward movement of the connecting arm 262, so that the pushing portion 363 moves to the inner side of the mounting shell 362 and presses the second elastic portion 365, and the elastic portion 365 has an elasticity that is far smaller than that of the first elastic portion 263, so that the guide 261 and the connecting arm 262 can slowly move upward under the pull of the first elastic portion 263, thereby slowing down the restoring speed of the sealing portion 31.
Working principle: before lifting a suspended object, the movable part 21 is in an initial state, the first locking part 24 and the second locking part 25 are in a first state, at this time, the lifting hook body 1 passes through the lifting position of the suspended object through the notch 12, and the crane is started, the suspended object is lifted upwards through the lifting hook body 1, at this time, the movable part 21 contacts with the lifting position of the suspended object, and the distance between the movable part 21 and the inner bottom side of the lifting hook body 1 is gradually reduced, meanwhile, the movable part 21 pushes one end, close to the first locking part 24 and the second locking part 25, of the first locking part 24 and one end, far away from each other, of the second locking part 25 is turned downwards, so that the first locking part 24 and the second locking part 25 are turned upwards, a second state limiting the lifting position of the suspended object is formed, when the movable part 21 is close to the inner bottom side of the lifting hook body 1, the guide piece 261 extends out of the bottom of the lifting hook body 1, the connecting arm 262 is driven to be far away from the lifting hook body 1, and the first elastic part 263 is stretched, meanwhile, the movable part 21 drives the toothed plate 356 and the gear 355 to mesh and drive, so that the second winding disc 353 winds up the connecting rope 354, and the first winding disc 351 releases the connecting rope 354, so that the first winding rope 31 rotates the first winding part 31, and the first winding part 31 rotates the first winding part 31 and the first winding part 31 is driven to rotate, and the first winding part 31 is driven to rotate the rotating part 31, and the second winding part is driven to rotate the connecting part 31, and the hook body is driven to be kept in a position, and the position of the top part is driven, and the hook body, and the top part is kept in a position, and is stretched, and the first winding part is wound, and the first winding, and is wound, and is simultaneously.
Claims (3)
1. A hook structure of a crane, comprising:
the lifting hook body is used for lifting the suspended object, a notch is formed in the lifting hook body, and the lifting hook body can penetrate through the lifting part of the suspended object through the notch;
the locking mechanism is connected to the lifting hook body and can lock the lifting position of the suspended object, the locking mechanism comprises a movable part, a first locking part and a second locking part, the first locking part and the second locking part are in a first state and a second state, when the first locking part and the second locking part are in the first state, the tops of the first locking part and the second locking part are in an open state, the bottoms of the first locking part and the second locking part are in an upturned state, the suspended object moves downwards by pushing the movable part through gravity after entering from the open parts of the tops of the first locking part and the second locking part, the movable part pushes the bottoms of the first locking part and the second locking part to enable the first locking part and the second locking part to rotate, the tops of the first locking part and the second locking part are closed, the locking mechanism further comprises a reset component connected to the movable part, the reset component can drive the movable part to reset when the movable part is not stressed so as to release the locking of the first locking part and the second locking part to the hanging part of the suspended object, the reset component comprises a guide piece, the guide piece penetrates through the bottom of the lifting hook body and is connected with a connecting arm, a first elastic part is connected between the connecting arm and the lifting hook body, the first elastic part can provide power for resetting of the movable part, the locking mechanism further comprises two mounting seats connected to the inner bottom side of the lifting hook body, the first locking part and the second locking part are respectively connected to the two mounting seats in a rotating way, torsion springs are respectively connected between the first locking part and the second locking part and the two mounting seats, the torsion spring is used for driving the first locking part and the second locking part to change from the second state to the first state when the first locking part and the second locking part are not stressed;
the sealing mechanism is connected between the locking mechanism and the lifting hook body, the sealing mechanism can carry out secondary locking on the lifting position of a suspended object, the sealing mechanism comprises a sealing part, the sealing part can turn over and seal a notch, the sealing mechanism further comprises a supporting seat connected to the notch, a first rotating shaft is rotationally connected to the supporting seat, the sealing part is connected to the first rotating shaft, the sealing part can turn over by taking the first rotating shaft as an axle center, a driving assembly is connected between the first rotating shaft and the movable part, the movable part can drive the driving assembly to operate, so that the first rotating shaft rotates, power is provided for turning over of the sealing part, the driving assembly comprises a first winding and unwinding disc rotationally connected to the first rotating shaft, a second rotating shaft rotationally connected to the lifting hook body, and a toothed plate connected to the movable part, a connecting rope is arranged between the second winding and unwinding disc, the toothed plate is further connected to the second rotating shaft as an axle center, and the toothed plate is meshed with the toothed plate.
2. A hook structure of a crane according to claim 1, characterized in that: the rotary assembly comprises a mounting part connected to the first rotating shaft and a rotary part connected between the mounting part and the supporting seat, and the rotary part can drive the first rotating shaft to reset.
3. A hook structure of a crane according to claim 1, characterized in that: the sealing mechanism further comprises a damping assembly, the damping assembly comprises a first moving part, a second moving part, a pushing part and a second elastic part, an inclined contact surface is arranged between the first moving part and the second moving part, and when the locking mechanism is reset, the first moving part can push the second moving part to move, so that the second elastic part is compressed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310487200.3A CN116199102B (en) | 2023-05-04 | 2023-05-04 | Lifting hook structure of crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310487200.3A CN116199102B (en) | 2023-05-04 | 2023-05-04 | Lifting hook structure of crane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116199102A CN116199102A (en) | 2023-06-02 |
| CN116199102B true CN116199102B (en) | 2023-07-21 |
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ID=86515065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310487200.3A Active CN116199102B (en) | 2023-05-04 | 2023-05-04 | Lifting hook structure of crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116199102B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10167675A (en) * | 1996-12-05 | 1998-06-23 | Kato Works Co Ltd | Counterweight moving mechanism |
| JP2011004605A (en) * | 2009-06-23 | 2011-01-13 | Kobashi Kogyo Co Ltd | Coupling device of agricultural implement |
| CN116062603A (en) * | 2023-03-06 | 2023-05-05 | 中国华西企业有限公司 | Lifting hook and crane |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4469069B2 (en) * | 2000-08-08 | 2010-05-26 | 武 池田 | Automatic ball removal hook |
| TWM328514U (en) * | 2007-08-23 | 2008-03-11 | rong-de Hong | Heavy duty hook |
| GB0801282D0 (en) * | 2008-01-24 | 2008-02-27 | Toon John | Hook |
| CA3057196A1 (en) * | 2019-10-01 | 2021-04-01 | Ryan LONG | Cantilevered lifting beam system |
| CN112173955B (en) * | 2020-08-25 | 2023-08-11 | 中建五局华东建设有限公司 | Anti-drop hook mechanism for lifting tower crane |
| CN112390143B (en) * | 2020-11-12 | 2022-07-19 | 广东博智林机器人有限公司 | Hanging device and lifting equipment |
| CN215558340U (en) * | 2020-12-19 | 2022-01-18 | 青岛海力丰索具有限公司 | Adjustable suspender of rigging for ocean engineering |
| CN113816255A (en) * | 2021-10-12 | 2021-12-21 | 嘉兴市蓝得光科技有限公司 | Gravity self-locking lifting mechanism and method applied to automobile machining production |
| CN217264271U (en) * | 2022-01-26 | 2022-08-23 | 苏州库力铁重工有限公司 | Self-locking type lifting hook for crane |
-
2023
- 2023-05-04 CN CN202310487200.3A patent/CN116199102B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10167675A (en) * | 1996-12-05 | 1998-06-23 | Kato Works Co Ltd | Counterweight moving mechanism |
| JP2011004605A (en) * | 2009-06-23 | 2011-01-13 | Kobashi Kogyo Co Ltd | Coupling device of agricultural implement |
| CN116062603A (en) * | 2023-03-06 | 2023-05-05 | 中国华西企业有限公司 | Lifting hook and crane |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116199102A (en) | 2023-06-02 |
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