CN221500340U - Hook unhooking prevention device special for crane - Google Patents
Hook unhooking prevention device special for crane Download PDFInfo
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- CN221500340U CN221500340U CN202323205714.XU CN202323205714U CN221500340U CN 221500340 U CN221500340 U CN 221500340U CN 202323205714 U CN202323205714 U CN 202323205714U CN 221500340 U CN221500340 U CN 221500340U
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- lifting hook
- weight
- connecting rod
- rod
- arc
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- 230000002265 prevention Effects 0.000 title claims abstract description 9
- 238000007789 sealing Methods 0.000 claims abstract description 30
- 230000003014 reinforcing effect Effects 0.000 claims description 13
- 239000002184 metal Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 17
- 230000006978 adaptation Effects 0.000 abstract description 4
- 238000010030 laminating Methods 0.000 abstract description 4
- 238000005452 bending Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003475 lamination 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
- 239000003351 stiffener Substances 0.000 description 1
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- Load-Engaging Elements For Cranes (AREA)
Abstract
The utility model provides a special lifting hook unhooking prevention device for a crane, which relates to the technical field of cranes and adopts the following scheme: the novel combined type sealing device comprises a front sealing piece and a rear counterweight piece, wherein the front sealing piece is connected with the rear counterweight piece, the front sealing piece comprises a left connecting rod and a right connecting rod, an arc sealing rod is arranged between the left connecting rod and the right connecting rod, a groove is formed in the arc sealing rod, the concave direction of the groove faces one side of the rear counterweight piece, and one side of the rear counterweight piece, which is far away from the front sealing piece, is of an open structure. The utility model has the following effects: through setting up back counter weight spare to back open-type structure, install the back on the lifting hook, can not take place to block with lifting hook dorsal arc shoulder and interfere, no matter lifting hook size, can both fall naturally under the effect of dead weight, set up the arc at the front closure spare simultaneously and seal the pole, have with the recess of the inboard radian adaptation of lifting hook front end, block to the lifting hook on, the contact surface is big, and cooperates with lifting hook radian, realizes good laminating, reaches better sealed effect.
Description
Technical Field
The utility model relates to the technical field of cranes, in particular to a special lifting hook unhooking prevention device for a crane.
Background
The lifting hook is the most common lifting appliance in the lifting machinery, the lifting hook is usually hung on a steel wire rope of a lifting mechanism by means of components such as pulley blocks, the lifting hook is divided into a single hook and a double hook according to the shape, the single hook is divided into a forged lifting hook and a laminated lifting hook according to the manufacturing method, the single hook is simple to manufacture and convenient to use, but the stress condition is poor, the strength of the laminated lifting hook is low, and in the use process, the large lifting appliance is taken off or extruded when in use, so that the large lifting appliance is deformed and damaged, the protection effect is lost, the large lifting appliance is frequently damaged, and a large amount of manpower and material resources are wasted.
For this reason, the patent document with publication number CN210944536U discloses a novel lifting hook rope-releasing prevention device, including rope-releasing prevention device, rope-releasing prevention device includes first U-shaped gag lever post, second U-shaped gag lever post and sleeve pipe, first U-shaped gag lever post is in the same place through sleeve pipe fixed connection with second U-shaped gag lever post top, sleeve pipe movably connects on the lifting hook body, when second U-shaped gag lever post butt is on the surface of lifting hook body, first U-shaped gag lever post butt is on the medial surface of lifting hook body, first U-shaped gag lever post includes two first montants and with two first montant integrated into one piece's horizontal pole, second U-shaped gag lever post includes two second montants and with two second montant integrated into one piece's horizontal pole, the length of second montant is twice of first montant, second U-shaped gag lever post is big than first U-shaped gag lever post quality, under the effect of dead weight, can play the effect of natural closure lifting hook, simple structure is firm, factor of safety in the lifting hook hoisting process has been improved effectively.
However, in the prior art, the cross rod is adopted on the first U-shaped limiting rod, the inner side of the lifting hook is provided with a certain radian, the contact surface is small when the cross rod is matched with the lifting hook, and the cross rod on the first U-shaped limiting rod is not tightly attached to the lifting hook due to the fact that the self weight of the cross rod is used for realizing natural falling and sealing, so that a sealing point is easy to open and close, a protection effect is lost, and potential safety hazards exist; simultaneously, set up the horizontal pole on the second U-shaped gag lever post, this department horizontal pole can receive the influence of lifting hook size, if the lifting hook size is big, then the second U-shaped gag lever post can be blocked on the arc shoulder of lifting hook dorsal part and can't fall under the dead weight effect, makes the horizontal pole on the first U-shaped gag lever post can't fall down, leads to leaving the clearance between horizontal pole on the first U-shaped gag lever post and the lifting hook inboard and forming the opening, can't seal.
Disclosure of Invention
The utility model aims to provide and design a special lifting hook anti-unhook device for a crane, aiming at the problems that the existing lifting hook anti-unhook device is easy to open and close at a closing point and can not be closed for a lifting hook with large size, and the special lifting hook anti-unhook device can be well attached to the lifting hook, so that a better closing effect is realized.
The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model provides a special lifting hook mousing-hook device of hoist, includes preceding sealing member and back counter weight spare, and preceding sealing member is connected with back counter weight spare, and preceding sealing member includes left connecting rod and right connecting rod, is provided with the arc dead lever between left connecting rod and the right connecting rod, has the recess on the arc dead lever, and the recess direction is towards back counter weight spare one side, and back counter weight spare is kept away from the one side of preceding sealing member and is open-type structure. Through setting up back counter weight spare to back open-type structure, install the back on the lifting hook, can not take place to block with lifting hook dorsal arc shoulder and interfere, no matter lifting hook size, can both fall naturally under the effect of dead weight, set up the arc at the front closure spare simultaneously and seal the pole, have with the recess of the inboard radian adaptation of lifting hook front end, block to the lifting hook on, the contact surface is big, and cooperates with lifting hook radian, realizes good laminating, reaches better sealed effect.
Further, the groove is an arc groove. The arc-shaped sealing rod and the lifting hook achieve better fitting effect after being adapted to the radian and the arc-shaped side face of the lifting hook.
Further, a reinforcing rod is arranged between the left connecting rod and the right connecting rod and is positioned behind the arc-shaped sealing rod. Because the rear counterweight is of a rear open structure, the rear counterweight is easy to deform if only one part of the front arc-shaped sealing rod is connected, and a reinforcing rod is arranged between the left connecting rod and the right connecting rod to play a role in reinforcing connection and further reinforcing overall strength.
Further, the rear weight includes a left weight bar and a right weight bar, and there is no connection between the left weight bar and the right weight bar. Forming an open structure.
Further, the spacing between the left weight bar and the right weight bar is greater than the spacing between the left link and the right link. The left counterweight rod and the right counterweight rod are provided with larger intervals to adapt to wider lifting hook sizes, the rear counterweight piece cannot interfere with the lifting hook, the smaller intervals between the left connecting rod and the right connecting rod can enable the arc-shaped sealing rod to have shorter sizes, the arc-shaped sealing rod is more suitable for the radian of the lifting hook, and the lamination is tighter.
Further, the left weight bar and the right weight bar are connected with the front sealing piece through the bending connecting bar. The purpose that the distance between the left weight balance rod and the right weight balance rod is larger than the distance between the left connecting rod and the right connecting rod is achieved.
Further, the weight of the rear counterweight is greater than the weight of the front closure. So as to be beneficial to smoothly falling down due to dead weight.
Further, balancing weights are arranged on the left balancing weight rod and the right balancing weight rod. The weight of the left weight balance rod and the weight of the right weight balance rod are increased, and the weight balance effect is realized.
Further, the left counterweight rod, the left connecting rod, the arc-shaped closed rod, the right connecting rod and the right counterweight rod are integrally bent through the metal piece to form the lifting hook unhooking prevention device. The steel bar is bent and formed, so that the manufacturing is simple and the cost is low.
Further, the rear parts of the left connecting rod and the right connecting rod are provided with connecting blocks, and the connecting blocks are provided with mounting holes. When the connecting block is used, the connecting block is connected to the bolt of the lifting hook through the mounting hole, then the connecting block is screwed in from the outer side by the nut, and the two sides of the connecting block are limited, so that the installation is completed.
From the above technical scheme, the utility model has the following advantages:
The utility model provides a special lifting hook unhook device of hoist through setting up back counter weight spare into back open type structure, installs the back on the lifting hook, can not take place to block with lifting hook dorsal arc shoulder and interfere, no matter lifting hook size, all can fall naturally under the effect of dead weight, sets up the arc in the front seal simultaneously and seals the pole, has the recess with the inboard radian adaptation of lifting hook front end, blocks to the lifting hook on, and the contact surface is big, and cooperates with the lifting hook radian, realizes good laminating, reaches better sealed effect.
Drawings
In order to more clearly illustrate the technical solutions of the present utility model, the drawings that are needed in the description will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of an embodiment of the present utility model.
In the figure, 1, a left weight rod, 2, a left connecting rod, 3, a right connecting rod, 4, a right weight rod, 5, an arc-shaped sealing rod, 6, a groove, 7, a reinforcing rod, 8, a bending connecting rod, 9, a balancing weight, 10, a connecting block, 11 and a mounting hole.
Detailed Description
In order to make the objects, features and advantages of the present utility model more obvious and understandable, the technical solutions of the present utility model will be clearly and completely described below with reference to the drawings in this specific embodiment, and it is apparent that the embodiments described below are only some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, based on the embodiments in this patent, which would be within the purview of one of ordinary skill in the art without the particular effort to make the utility model are intended to be within the scope of the patent protection.
As shown in fig. 1, this embodiment provides a special lifting hook unhook device of hoist, including preceding closure spare and back counter weight spare, preceding closure spare is connected with back counter weight spare, preceding closure spare includes left connecting rod 2 and right connecting rod 3, be provided with arc dead lever 5 between left connecting rod 2 and the right connecting rod 3, have recess 6 on the arc dead lever 5, recess 6's concave direction is towards back counter weight spare one side, recess 6 is the arc wall to the radian and the arc side of adaptation in the lifting hook, arc dead lever 5 reaches better laminating effect with the lifting hook.
Wherein, the back counter weight piece is the open type structure far away from the one side of preceding closure piece, and specifically, the back counter weight piece includes left counter weight pole 1 and right counter weight pole 4, does not have the relation of connection between left counter weight pole 1 and the right counter weight pole 4. The left weight balance bar 1 and the right weight balance bar 4 are connected with the front sealing piece through the bending connecting bar 8, and the distance between the left weight balance bar 1 and the right weight balance bar 4 is larger than the distance between the left connecting bar 2 and the right connecting bar 3. The left counterweight rod 1 and the right counterweight rod 4 are provided with larger intervals to adapt to wider lifting hook sizes, the rear counterweight piece cannot interfere with the lifting hook, the smaller intervals between the left connecting rod 2 and the right connecting rod 3 can enable the arc-shaped sealing rod 5 to be provided with shorter sizes, the arc-shaped sealing rod is more suitable for the radian of the lifting hook, and the fitting is tighter.
Wherein the weight of the rear counterweight is greater than the weight of the front closure. Specifically, left counter weight pole 1, left connecting rod 2, arc dead lever 5, right connecting rod 3, right counter weight pole 4, bent connecting rod 8 are metalwork integral type bending, and this lifting hook mousing-hook device is through reinforcing bar bending (not including balancing weight 9 and stiffener 7), simple manufacture, and is with low costs. The left weight balance bar 1 and the right weight balance bar 4 are respectively provided with a weight balance 9 so as to increase the weight of the left weight balance bar 1 and the right weight balance bar 4 and realize the weight balance function.
In addition, a reinforcing rod 7 is arranged between the left connecting rod 2 and the right connecting rod 3, the reinforcing rod 7 is positioned behind the arc-shaped sealing rod 5, and as the rear weight part is of a rear open structure, the rear weight part is easy to deform if only one part of the front end arc-shaped sealing rod 5 is connected, so that the reinforcing rod 7 is arranged between the left connecting rod 2 and the right connecting rod 3, and the effect of reinforcing connection and further reinforcing the overall strength is achieved.
Further, the rear portions of the left and right links 2 and 3 are provided with a connection block 10, and the connection block 10 is provided with a mounting hole 11. When the connecting block is used, the connecting block is connected to the bolt of the lifting hook through the mounting hole 11, then the connecting block is screwed in from the outer side by using the nut, and the two sides of the connecting block 10 are limited, so that the installation is completed.
The terms "upper," "lower," "outboard," "inboard," and the like in the description and in the claims of the utility model and in the above figures, if any, are used for distinguishing between relative relationships in position and not necessarily for giving qualitative sense. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the utility model described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The utility model provides a special lifting hook mousing-hook device of hoist, includes preceding sealing member and back counter weight spare, and preceding sealing member is connected with back counter weight spare, and preceding sealing member includes left connecting rod and right connecting rod, its characterized in that is provided with the arc dead lever between left connecting rod and the right connecting rod, has the recess on the arc dead lever, and the recess direction of recess is towards back counter weight spare one side, and back counter weight spare is kept away from the one side of preceding sealing member and is open-type structure.
2. The hook-and-unhook-preventing apparatus for a crane according to claim 1, wherein the groove is an arc-shaped groove.
3. The special lifting hook unhooking-preventing device for the crane according to claim 2, wherein a reinforcing rod is arranged between the left connecting rod and the right connecting rod, and the reinforcing rod is positioned behind the arc-shaped sealing rod.
4. A crane-specific hook release-preventing apparatus as claimed in any one of claims 1 to 3, wherein the rear weight member includes a left weight bar and a right weight bar, and there is no connection between the left weight bar and the right weight bar.
5. The crane-specific hook release preventing apparatus as claimed in claim 4, wherein a distance between the left weight bar and the right weight bar is greater than a distance between the left link and the right link.
6. The special lifting hook unhooking-preventing device for a crane according to claim 5, wherein the left weight bar and the right weight bar are connected with the front closure member through bent connecting bars.
7. The crane-specific hook release mechanism of claim 4, wherein the rear weight member has a weight greater than the weight of the front closure member.
8. The special lifting hook unhooking-preventing device for the crane according to claim 7, wherein the left weight rod and the right weight rod are provided with weight blocks.
9. The special lifting hook unhooking-preventing device for the crane according to claim 6, wherein the left counterweight rod, the left connecting rod, the arc-shaped closing rod, the right connecting rod and the right counterweight rod are integrally bent through metal pieces to form the lifting hook unhooking-preventing device.
10. A special lifting hook unhooking prevention device for a crane according to any one of claims 1-3, wherein the rear parts of the left connecting rod and the right connecting rod are provided with connecting blocks, and the connecting blocks are provided with mounting holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323205714.XU CN221500340U (en) | 2023-11-27 | 2023-11-27 | Hook unhooking prevention device special for crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323205714.XU CN221500340U (en) | 2023-11-27 | 2023-11-27 | Hook unhooking prevention device special for crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221500340U true CN221500340U (en) | 2024-08-09 |
Family
ID=92142827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323205714.XU Active CN221500340U (en) | 2023-11-27 | 2023-11-27 | Hook unhooking prevention device special for crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221500340U (en) |
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2023
- 2023-11-27 CN CN202323205714.XU patent/CN221500340U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |