CN210505255U

CN210505255U - Lifting hook with rotation-proof device

Info

Publication number: CN210505255U
Application number: CN201921643551.4U
Authority: CN
Inventors: 韩召朋; 刘文明
Original assignee: HENAN JUREN CRANE GROUP CO Ltd
Current assignee: HENAN JUREN CRANE GROUP CO Ltd
Priority date: 2019-09-29
Filing date: 2019-09-29
Publication date: 2020-05-12
Anticipated expiration: 2029-09-29

Abstract

The utility model provides a take anti-rotation device's lifting hook during the use, earlier be connected the wire rope of support and hoist, according to the condition of lifting by crane, when needing to adopt rotatory lifting hook directly use can, when needing to adopt fixed lifting hook, will earlier with holding ring rebound with the support peg graft fixed, avoid the process of lifting by crane the lifting hook rotation. Therefore, the lifting hook can meet the use requirements of various lifting conditions, frequent replacement of the lifting hook is avoided, and the lifting efficiency is effectively improved.

Description

Lifting hook with rotation-proof device

Technical Field

The utility model relates to a jack-up accessory, specific theory has related to a lifting hook of rotatory device is prevented in area.

Background

The lifting hook is one of more common accessory, and at the jack-up in-process, the hoist engine of hoist passes through wire rope and connects the lifting hook and promote the heavy object, and wire rope's one end is fixed on the reel of hoist engine, and the upper end at the lifting hook is fixed to the other end, and at the rotatory in-process that promotes that carries out of reel, thereby wire rope forms easily that to twist strength drives the lifting hook rotatory, and then drives the heavy object and rotate. In order to solve the problem, a lifting hook with a rotating structure is designed. For example, chinese patent 2018202058621 discloses a dual-purpose electric hoist rotating hook, wherein a bracket is rotatably connected to a top end of a hook body of the rotating hook, a steel wire rope is fixedly connected to the bracket during use, the steel wire rope can rotate relative to the rotating hook during hoisting to avoid twisting, and in addition, the hook body of the rotating hook can rotate to facilitate hoisting heavy objects in different directions. However, due to the hook body being set in rotation, in the case of partial lifting, for example: adopt single hoisting point long distance perpendicular handling steel pipe or empty hook to promote, lifting hook self takes place rotatoryly, then probably causes wire rope winding or heavy object collision, consequently, in order to adapt to the different circumstances of lifting by crane, just need in time change different types of lifting hook according to the circumstances of lifting by crane, and be unfavorable for the improvement of lifting by crane efficiency.

Disclosure of Invention

The utility model aims at providing a take anti-rotation device's lifting hook to the unable defect that adapts to the different circumstances of lifting by crane of lifting hook among the prior art.

In order to realize the purpose, the utility model discloses the technical scheme who adopts is:

a lifting hook with an anti-rotation device comprises a hook body and a support which is rotationally connected with the top end of the hook body, wherein the hook body comprises a lower arc-shaped section and an upper vertical section, and the upper vertical section is provided with the anti-rotation device; the anti-rotation device comprises a positioning ring movably sleeved on the upper vertical section, a positioning mechanism is arranged on the positioning ring, a limiting block is arranged on the positioning mechanism, and a clamping groove matched with the limiting block is formed in the bottom surface of the support.

Based on the above, the positioning mechanism comprises at least two positioning columns symmetrically arranged on the positioning ring, the lower end parts of the positioning columns are connected with the limiting blocks through springs, the support corresponds to the positioning columns and is provided with positioning holes, and the inner walls of the positioning holes correspond to the limiting blocks and are provided with clamping grooves.

Based on the above, the positioning mechanism comprises at least two positioning plates which are symmetrically arranged, a sliding groove is arranged in each positioning plate, the sliding groove is connected with a limiting block in a sliding mode, the side wall of the sliding groove and the positioning ring are provided with stroke long holes corresponding to the limiting blocks, the limiting blocks are connected with stroke sliding blocks through connecting rods, and the connecting rods penetrate through the stroke long holes; the support is provided with a positioning hole corresponding to the positioning plate, and the inner wall of the positioning hole is provided with a clamping groove corresponding to the limiting block.

Based on the above, the stroke slider is located below the positioning ring.

Based on the above, the sliding groove and the limiting block are connected through a spring, and when the stroke slider is located at one end of the stroke long hole, the limiting block is completely located in the sliding groove and the spring is in a compressed state; when the stroke slider is located the other end of stroke slot hole, the one end of stopper is located the spout outside, the spring is in natural state.

Based on the above, the junction of lower part segmental arc with the vertical section in upper portion sets up solid fixed ring, gu fixed ring's external diameter is greater than the internal diameter of holding ring.

The utility model discloses relative prior art has substantive characteristics and progress, specific theory, the utility model provides a lifting hook of rotatory device is prevented in area, during the use, earlier be connected the wire rope of support and hoist, according to the condition of lifting by crane, direct use when needing to adopt rotatory lifting hook can, when needing to adopt fixed lifting hook, will earlier with the holding ring rebound with the support peg graft fixedly, avoid lifting by crane the rotation of process lifting hook. Therefore, the lifting hook can meet the use requirements of various lifting conditions, frequent replacement of the lifting hook is avoided, and the lifting efficiency is effectively improved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention in the embodiment.

Fig. 2 is a schematic structural view of the positioning mechanism in another embodiment.

Fig. 3 is a top view of fig. 2.

Fig. 4 is a bottom view of fig. 2.

In the figure: 1. a support; 2. a lower arcuate segment; 3. an upper vertical section; 4. a positioning ring; 5. a positioning mechanism; 51. positioning a plate; 52. a limiting block; 53. a stroke long hole; 54. a stroke slider; 6. preventing tripping; 7. and (4) fixing the ring.

Detailed Description

The technical solution of the present invention will be described in further detail through the following embodiments.

As shown in fig. 1, a lifting hook with an anti-rotation device comprises a hook body and a bracket 1 rotationally connected with the top end of the hook body, wherein the hook body comprises a lower arc-shaped section 2 and an upper vertical section 3, and the upper vertical section 3 is provided with the anti-rotation device; the anti-rotation device comprises a positioning ring 4 movably sleeved on the upper vertical section 3, a positioning mechanism 5 is arranged on the positioning ring 4, a limiting block is arranged on the positioning mechanism 5, and a clamping groove matched with the limiting block is formed in the support 1. The lower arc-shaped section 2 is provided with an anti-tripping device 6, and the bracket can adopt a U-shaped bracket similar to that in Chinese patent 2018202058621, and can also adopt brackets with other structures.

The use method of the lifting hook comprises the following steps: the support is connected with the steel wire rope of the crane, the steel wire rope can be directly used when a rotary lifting hook is needed according to the lifting condition, and when the fixed lifting hook is needed, the positioning ring is firstly moved upwards and is fixedly connected with the support in an inserting mode, so that the rotation of the lifting hook in the lifting process is avoided. Therefore, the lifting hook can meet the use requirements of various lifting conditions, frequent replacement of the lifting hook is avoided, and the lifting efficiency is effectively improved.

Specifically, in this embodiment, the positioning mechanism 5 includes two positioning columns symmetrically disposed on the positioning ring 4, the lower end portions of the positioning columns are connected to the limiting blocks through springs, the support 1 is provided with positioning holes corresponding to the positioning columns, and the inner walls of the positioning holes correspond to the limiting blocks and provided with clamping grooves. When the fixed lifting hook is required to be used, the positioning ring is moved upwards, the positioning column is inserted into the positioning hole, the limiting block is loosened, and the limiting block is clamped into the clamping groove.

In other embodiments, as shown in fig. 1 to 4, the positioning mechanism 5 includes two symmetrically disposed positioning plates 51, a sliding groove is disposed inside the positioning plate 51, the sliding groove is slidably connected to a limiting block 52, a stroke slot 53 is disposed on a side wall of the sliding groove and the positioning ring 4 corresponding to the limiting block 52, the limiting block 52 is connected to a stroke slider 54 through a connecting rod, and the connecting rod passes through the stroke slot 53; the support is provided with a positioning hole corresponding to the positioning plate, and the inner wall of the positioning hole is provided with a clamping groove corresponding to the limiting block. When the fixed lifting hook is needed, the positioning ring is moved upwards, the positioning plate is inserted into the positioning hole, and the stroke sliding block is slid to enable the limiting block to be clamped into the clamping groove.

In particular, the travel slider 54 is located below the positioning ring 4.

Further, the sliding groove and the limiting block 52 are connected through a spring, and when the stroke slider 54 is located at one end of the stroke long hole 53, the limiting block 52 is completely located inside the sliding groove and the spring is in a compressed state; when the stroke slider 54 is located at the other end of the stroke long hole 53, one end of the limiting block 52 is located outside the sliding groove, and the spring is in a natural state. The natural state refers to a state in which the spring is neither extended nor compressed.

Further, the junction of lower part arc section 2 with the vertical section 3 in upper portion sets up solid fixed ring 7, gu fixed ring 7's external diameter is greater than the internal diameter of holding ring 4 to avoid the holding ring slippage.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.

Claims

1. The utility model provides a lifting hook of anti-rotation device in area, including the coupler body, with the coupler body top rotates the support of being connected, its characterized in that: the hook body comprises a lower arc-shaped section and an upper vertical section, and the upper vertical section is provided with an anti-rotation device; the anti-rotation device comprises a positioning ring movably sleeved on the upper vertical section, a positioning mechanism is arranged on the positioning ring, a limiting block is arranged on the positioning mechanism, and a clamping groove matched with the limiting block is formed in the support.

2. A hook with an anti-rotation device as defined in claim 1, wherein: the positioning mechanism comprises at least two positioning columns symmetrically arranged on the positioning ring, the lower end parts of the positioning columns are connected with limiting blocks through springs, the support corresponds to the positioning columns and is provided with positioning holes, and the inner walls of the positioning holes correspond to the limiting blocks and are provided with clamping grooves.

3. A hook with an anti-rotation device as defined in claim 1, wherein: the positioning mechanism comprises at least two symmetrically arranged positioning plates, a sliding groove is arranged in each positioning plate, each sliding groove is connected with a limiting block in a sliding mode, the side wall of each sliding groove and the corresponding positioning ring are provided with stroke long holes corresponding to the limiting blocks, each limiting block is connected with a stroke sliding block through a connecting rod, and the connecting rods penetrate through the stroke long holes; the support is provided with a positioning hole corresponding to the positioning plate, and the inner wall of the positioning hole is provided with a clamping groove corresponding to the limiting block.

4. A hook with an anti-rotation device as defined in claim 3, wherein: the stroke sliding block is positioned below the positioning ring.

5. A hook with an anti-rotation device as claimed in claim 3 or 4, wherein: the sliding groove is connected with the limiting block through a spring, and when the stroke sliding block is located at one end of the stroke long hole, the limiting block is completely located in the sliding groove, and the spring is in a compressed state; when the stroke slider is located the other end of stroke slot hole, the one end of stopper is located the spout outside, the spring is in natural state.

6. A hook with anti-rotation device as claimed in any one of claims 1 to 4, wherein: the junction of lower part arc section with the vertical section in upper portion sets up solid fixed ring, gu fixed ring's external diameter is greater than the internal diameter of holding ring.