CN215974583U - Simple self-unhooking device for hoisting - Google Patents
Simple self-unhooking device for hoisting Download PDFInfo
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- CN215974583U CN215974583U CN202122120064.3U CN202122120064U CN215974583U CN 215974583 U CN215974583 U CN 215974583U CN 202122120064 U CN202122120064 U CN 202122120064U CN 215974583 U CN215974583 U CN 215974583U
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- pin shaft
- hoisting
- hook
- grappling
- lock catch
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- 229910003460 diamond Inorganic materials 0.000 claims description 3
- 239000010432 diamond Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 9
- 230000009471 action Effects 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 4
- 239000002356 single layer Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model discloses a simple self-unhooking device for hoisting, which comprises: one end of each connecting rod is hinged through a first pin shaft, the other end of each connecting rod is hinged with one end of each of two symmetrically-arranged grappling hooks through a second pin shaft, the middle parts of the two grappling hooks are hinged together through a third pin shaft to form a scissors shape, and the lower part of each grappling hook is in a circular arc shape with an inward opening direction; the bottom of the first lock catch is connected with the first pin shaft, and the top of the first lock catch is connected with a steel wire rope of a main hook of the hoisting equipment; and the bottom of the second lock catch is connected with the third pin shaft, and the top of the second lock catch is connected with a steel wire rope of the auxiliary hook of the hoisting equipment. The utility model realizes automatic unhooking under the matching action of the main hook and the auxiliary hook of the hoisting equipment, has simple structure, does not need other devices or workers for operation in the unhooking process, saves the material cost of the shackle operation platform, avoids the safety risk of manual shackle and accelerates the construction progress of hoisting and hoisting.
Description
Technical Field
The utility model relates to the technical field of mechanical lifting traction devices. More particularly, the utility model relates to a simple self-unhooking device for hoisting.
Background
In the general hoisting and hoisting construction operation process, the lifting hook for connecting loads needs manual operation during loading and unloading, a worker is usually in a safe operation environment during loading, the worker can leave a safe area in advance after loading and then lift, but the worker often does not have a safe operation platform due to condition limitation during unloading, and needs manual operation to unhook when the loads are not unloaded, and the safety risk is large at the moment, for example, the stone cage for constructing the island in water is thrown.
As a modified form of the hook, there are two basic forms of a clip type and a single hook flip type currently used as a detacher. When the single-hook turnover type detacher is unhooked, a lateral force can be generated, so that the detacher swings violently after unhooking, space drift is easily generated after heavy objects are unhooked, the position of a drop point is inaccurate, the centering performance is relatively poor, the safety performance is not high, and another power element is often needed to provide power to enable the detacher to be unhooked when the heavy objects are unhooked. Chinese patent document CN101973483B discloses a load and unload unhooking device, belonging to a clamp type unhooking device, the structure of the scheme is too complex, and the unhooking needs to be added with a driving motor, so that the economic efficiency is lower when the device is used for temporary construction on the site of a general project. In conclusion, the existing detacher has the problems of inconvenient operation, poor safety, complex structure, uneconomical practicability and the like.
SUMMERY OF THE UTILITY MODEL
The utility model also aims to provide a simple self-unhooking device for hoisting, which realizes automatic unhooking under the matching action of a main hook and an auxiliary hook of hoisting equipment, has a simple structure, does not need other devices or workers for operation in the unhooking process, saves the material cost of a shackle operation platform, avoids the safety risk of manual shackle and accelerates the construction progress of hoisting.
To achieve these objects and other advantages in accordance with the purpose of the utility model, there is provided a simple self-unhooking device for hoisting, including:
one end of each connecting rod is hinged through a first pin shaft, the other end of each connecting rod is hinged with one end of each of two symmetrically-arranged grappling hooks through a second pin shaft, the middle parts of the two grappling hooks are hinged together through a third pin shaft to form a scissors shape, and the lower part of each grappling hook is in a circular arc shape with an inward opening direction;
the bottom of the first lock catch is connected with the first pin shaft, and the top of the first lock catch is connected with a steel wire rope of a main hook of the hoisting equipment;
and the bottom of the second lock catch is connected with the third pin shaft, and the top of the second lock catch is connected with a steel wire rope of the auxiliary hook of the hoisting equipment.
Preferably, a distance between the first pin and any one of the second pins is the same as a distance between the second pin and the third pin, so as to form a diamond structure.
Preferably, one of the grappling hooks comprises two symmetrically arranged grappling hook parts, one end of any grappling hook part is hinged with the second pin shaft, the middle part of any grappling hook part is hinged with the third pin shaft, and the other grappling hook is positioned between the two grappling hook parts.
Preferably, still include flexible post, its stiff end and free end respectively through a connecting block with two second round pin hub connection, the stiff end is kept away from be equipped with pressure sensor on the inner wall of the one end of free end.
Preferably, the telescopic column is provided with an alarm device, the alarm device comprises a protective shell which is fixedly arranged on the outer side wall of the fixed end of the telescopic column, and the outer side wall of the protective shell is provided with an alarm; and the control device is arranged in the protective shell and is electrically connected with the alarm and the pressure sensor.
The utility model at least comprises the following beneficial effects: the utility model realizes automatic unhooking under the matching action of the main hook and the auxiliary hook of the hoisting equipment, has simple structure, does not need other devices or workers for operation in the unhooking process, saves the material cost of the shackle operation platform, avoids the safety risk of manual shackle and accelerates the construction progress of hoisting and hoisting.
Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model.
Drawings
Fig. 1 is a schematic structural diagram of a simple self-unhooking device for hoisting according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of the simple self-unhooking device for hoisting in the above embodiment in an unhooking state;
fig. 3 is a schematic side view of the simple self-unhooking device for hoisting in the above embodiment.
The specification reference numbers indicate: 1. the device comprises a connecting rod, 2, a first pin shaft, 3, a second pin shaft, 4, a third pin shaft, 5, a grapple, 6, a grapple part, 7, a first lock catch, 8, a second lock catch, 9, a steel wire rope, 10, a connecting block, 11, a fixed end, 12, a free end, 13, a protective shell, 14, a control device, 15, a pressure sensor, 16 and an alarm.
Detailed Description
The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the utility model by referring to the description text.
It should be noted that in the description of the present invention, the terms "lateral", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
As shown in fig. 1-3, the present invention provides a simple self-unhooking device for hoisting, comprising:
one end of each connecting rod 1 is hinged through a first pin shaft 2, the other end of each connecting rod is hinged with one end of each of two symmetrically-arranged grappling hooks 5 through a second pin shaft 3, the middle parts of the two grappling hooks 5 are hinged together through a third pin shaft 4 to form a scissors shape, and the lower part of each grappling hook is in a circular arc shape with an inward opening direction;
the bottom of the first lock catch 7 is connected with the first pin shaft 2, and the top of the first lock catch is connected with a steel wire rope 9 of a main hook of the hoisting equipment;
and the bottom of the second lock catch 8 is connected with the third pin shaft 4, and the top of the second lock catch is connected with a steel wire rope 9 of the auxiliary hook of the hoisting equipment.
In the technical scheme, the hoisting equipment is one of cranes and has a main hook and an auxiliary hook structure, the first lock catch 7 and the second lock catch 8 are respectively connected with steel wire ropes 9 on the main hook and the auxiliary hook and are used for connecting the device and the hoisting equipment together, the first lock catch and the second lock catch have the same structure and are of U-shaped structures, the two connecting rods 1 are hinged together through the first pin shaft 2, the two connecting rods 1 and the two grapples are hinged together through the two second pin shafts 3, the two grapples are hinged together through the third pin shaft 4 to form a scissor shape, the lower part of any grapple is of an arc shape with an inward opening direction, the two grapples are matched with each other and can be connected with a heavy object to be hoisted, and the hoisting purpose is achieved through the hoisting equipment.
Hoisting a heavy object on site: the working personnel hang a heavy object on the lower part of the grapple, the lifting personnel operate the lifting equipment to slowly lift a main hook steel wire rope 9 of the lifting equipment, under the self gravity of the device and the load of the hung heavy object, two connecting rods 1 are taken as a whole to be taken as a stress analysis object, the two connecting rods 1 bear an upward force at the position of a first pin shaft 2, bear a downward force and a horizontal rightward force at the position of a second pin shaft 3 positioned on the left side, bear a downward force and a horizontal leftward force at the position of the second pin shaft 3 positioned on the right side, the vertical forces are mutually offset, and the horizontal forces enable the two second pin shafts 3 to be mutually close; taking the two grapples as a whole to be used as a stress analysis object, wherein the grapple on the left side is subjected to a vertical upward force and a horizontal rightward force at the position of the second pin shaft 3 on the left side, the grapple on the right side is subjected to a vertical upward force and a horizontal leftward force at the position of the pin shaft on the right side, the lower part of the clamp sheet is subjected to a vertical downward force, the vertical forces are mutually counteracted, the horizontal forces enable the two second pin shafts 3 to be mutually closed, and due to the action of the third pin shaft 4, the lower parts of the two grapples are mutually locked under the action of a lever, so that a heavy object is firmly hung on the grapples, and the lifting of the heavy object is realized;
unloading and unhooking: after a heavy object is lifted to a specified position, a lifting worker operates the auxiliary hook of the lifting equipment to slowly lift, at the moment, the main hook does not work, the vertical force provided by the main hook at the position of the first pin shaft 2 of the two connecting rods 1 is slowly reduced, the shaft force in the connecting rods 1 is slowly reduced, the horizontal component force borne by the connecting rods at the positions of the two second pin shafts 3 is reduced, the two grapples are taken as an integral stress analysis object, the horizontal force and the vertical force of the two grapples at the positions of the two second pin shafts 3 are reduced, the vertical force is borne at the position of the third pin shaft 4, the lower opening position of the grapple, namely the connection position of the grapple and the heavy object, is subjected to the vertical downward force and the horizontal leftward and horizontal rightward forces under the load action of the heavy object, when the horizontal force of the grapple at the positions of the two second pin shafts 3 is not enough to offset the horizontal acting force generated by the heavy object to the grapple, the lower part of the grapple is opened to realize self-unhooking, the utility model realizes automatic unhooking under the matching action of the main hook and the auxiliary hook of the hoisting equipment, has simple structure, does not need other devices or workers for operation in the unhooking process, saves the material cost of the shackle operation platform, avoids the safety risk of manual shackle and accelerates the construction progress of hoisting and hoisting.
In another technical scheme, the distance between the first pin 2 and any one of the second pins 3 is the same as the distance between the second pin 3 and the third pin 4, so as to form a diamond structure.
In this technical scheme, the rhombus structure can guarantee that the device all can keep both sides balanced when rotating optional position in the use, can not produce the yawing force to guarantee that the placement of heavy object is put accurately, improved the security in the work progress.
In another technical scheme, one of the grappling hooks 5 comprises two symmetrically arranged grappling hook parts 6, one end of any grappling hook part 6 is hinged with the second pin shaft 3, the middle part of any grappling hook part 6 is hinged with the third pin shaft 4, and the other grappling hook is positioned between the two grappling hook parts 6.
In this technical scheme, a grapple is bilayer structure, and another grapple is single-layer construction, and the grapple that has single-layer construction is located between the grapple that has bilayer structure, and when hoisting the heavy object, the lower extreme interlock of single-layer construction's grapple is in bilayer structure's grapple to make the interlock between two grapples inseparabler, further improve the security in the work progress.
In another technical scheme, the device further comprises a telescopic column, a fixed end 11 and a free end 12 of the telescopic column are respectively connected with the two second pin shafts 3 through a connecting block 10, and a pressure sensor 15 is arranged on the inner wall of one end, far away from the free end 12, of the fixed end 11; the telescopic column is provided with an alarm device which comprises a protective shell 13, the protective shell is fixedly arranged on the outer side wall of the fixed end 11 of the telescopic column, and the outer side wall of the protective shell 13 is provided with an alarm 16; and a control device 14 which is arranged inside the protective shell 13 and is electrically connected with the alarm 16 and the pressure sensor 15.
In the technical scheme, a pressure sensor 15, a control device 14 and an alarm 16 are all electrically connected with an external power supply, the pressure sensor 15 and the alarm 16 are electrically connected with the control device 14, a telescopic column comprises a free end 12 and a fixed end 11 which are mutually sleeved, the pressure sensor 15 is arranged on the inner wall of the fixed end 11, when the device is in a state of lifting a heavy object, the free end 12 is always in contact with the pressure sensor 15, the pressure sensor 15 senses pressure and transmits a signal to the control device 14, the control device 14 controls the alarm 16 not to work, namely, the alarm 16 is in a non-working state in the process of lifting the heavy object; when the device is in the state of uninstallation unhook, because two second round pin axles 3 are in the state of keeping away from each other, thereby the free end 12 that drives flexible post keeps away from pressure sensor 15, free end 12 does not contact with pressure sensor 15 this moment, pressure sensor 15 does not experience pressure promptly, also can not transmit signal for controlling means 14, when controlling means 14 can not receive the signal of pressure sensor 15 transmission, drive alarm 16 reports to the police, with the state that the device is in the unhook of warning staff, thereby guarantee unhook in-process under the staff's the personal safety.
While embodiments of the utility model have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the utility model pertains, and further modifications may readily be made by those skilled in the art, it being understood that the utility model is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (5)
1. The utility model provides a jack-up hoist and mount is simple and easy from unhook device which characterized in that includes:
one end of each connecting rod is hinged through a first pin shaft, the other end of each connecting rod is hinged with one end of each of two symmetrically-arranged grappling hooks through a second pin shaft, the middle parts of the two grappling hooks are hinged together through a third pin shaft to form a scissors shape, and the lower part of each grappling hook is in a circular arc shape with an inward opening direction;
the bottom of the first lock catch is connected with the first pin shaft, and the top of the first lock catch is connected with a steel wire rope of a main hook of the hoisting equipment;
and the bottom of the second lock catch is connected with the third pin shaft, and the top of the second lock catch is connected with a steel wire rope of the auxiliary hook of the hoisting equipment.
2. The simple self-unhooking device for hoisting as claimed in claim 1, wherein the distance between the first pin and any one of the second pins is the same as the distance between the second pin and the third pin, so as to form a diamond structure.
3. The simple self-unhooking device for hoisting according to claim 1, wherein one of the grappling hooks comprises two symmetrically arranged grappling hook parts, one end of each grappling hook part is hinged with the second pin shaft, the middle part of each grappling hook part is hinged with the third pin shaft, and the other grappling hook is positioned between the two grappling hook parts.
4. The simple self-unhooking device for hoisting as claimed in claim 1, further comprising a telescopic column, wherein a fixed end and a free end of the telescopic column are respectively connected with the two second pin shafts through a connecting block, and a pressure sensor is arranged on an inner wall of one end of the fixed end, which is far away from the free end.
5. The simple self-unhooking device for hoisting according to claim 4, wherein the telescopic column is provided with an alarm device, the alarm device comprises a protective shell fixedly arranged on the outer side wall of the fixed end of the telescopic column, and the outer side wall of the protective shell is provided with an alarm; and the control device is arranged in the protective shell and is electrically connected with the alarm and the pressure sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122120064.3U CN215974583U (en) | 2021-09-03 | 2021-09-03 | Simple self-unhooking device for hoisting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122120064.3U CN215974583U (en) | 2021-09-03 | 2021-09-03 | Simple self-unhooking device for hoisting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215974583U true CN215974583U (en) | 2022-03-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122120064.3U Active CN215974583U (en) | 2021-09-03 | 2021-09-03 | Simple self-unhooking device for hoisting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215974583U (en) |
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2021
- 2021-09-03 CN CN202122120064.3U patent/CN215974583U/en active Active
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