CN219341444U - Anti-unhooking device for travelling crane - Google Patents

Abstract

The utility model discloses a running unhooking prevention device which comprises a cross beam, wherein the bottom of the cross beam is fixedly connected with a connecting rod, the bottom of the connecting rod is fixedly provided with a bottom plate, the inside of one side of the bottom plate is rotatably sleeved with a rotating shaft, the outside of two ends of the rotating shaft is fixedly connected with a self-weight pressing plate, and the inside of the self-weight pressing plate is provided with an adjusting groove. This driving unhooking device, the right side weight of dead weight clamp plate is greater than left side weight, then make the right side of dead weight clamp plate push down, and the left side of dead weight clamp plate lifts up, when the right side of dead weight clamp plate pushes down, movable gag lever post linkage pushes down until the outside with the lifting hook offsets, make the pushing down of dead weight clamp plate stop, then make the left side of dead weight clamp plate lock the top of lifting hook, thereby make rings by spacing in the outside of lifting hook, can not lead to the left side of dead weight clamp plate to open in the removal process, the effect of this device antiskid is improved.

Description

Anti-unhooking device for travelling crane

Technical Field

The utility model belongs to the technical field of lifting hooks, and particularly relates to a running crane unhooking prevention device.

Background

The crane lifting hook is the most common lifting appliance in hoisting machinery, is suspended on a steel wire rope of a hoisting mechanism by means of pulley blocks and other parts, and is divided into a single hook and a double hook according to the shape; the manufacturing method is divided into a forging lifting hook and a lamination lifting hook. Original crane lifting hook, it is through adopting spring mechanism to come as anti-skidding support device, and original crane lifting hook is put into behind the lifting hook in its rings, and in the use of its spring, receive the pressfitting of heavy object rings repeatedly to open the closure, and is extremely fragile, and the reliability is poor for the rings have the risk of droing, for this reason we propose crane anti-unhook device.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a running anti-unhooking device, which solves the problems in the background art.

The utility model provides the following technical scheme: the utility model provides a driving unhooking prevention device, includes the crossbeam, the bottom fixedly connected with connecting rod of crossbeam, the bottom of connecting rod is fixed with the bottom plate, the pivot has been cup jointed in the inside rotation of bottom plate one side, the outside fixedly connected with dead weight clamp plate at pivot both ends, the regulating groove has been seted up to the inside of dead weight clamp plate, movable gag lever post has been cup jointed in the inside slip of regulating groove, the left end fixedly connected with square slider of movable gag lever post, the right-hand member fixedly connected with screw rod of movable gag lever post.

Further, pulley blocks are fixedly connected to two sides of the cross beam, and rail grooves are formed in the pulley blocks.

Further, the outside both sides fixedly connected with side limiting plate of pivot, side limiting plate is located the both sides of bottom plate, and side limiting plate offsets with the both sides of bottom plate.

Further, the bottom of bottom plate fixedly connected with lifting hook, the outside sliding sleeve of lifting hook has rings.

Further, the appearance of dead weight clamp plate is L style of calligraphy, the lifting hook is located the below of dead weight clamp plate, and the lifting hook does not interfere with the motion track of dead weight clamp plate left end.

Further, a baffle is arranged outside the square sliding block, and a nut is arranged outside the screw rod.

Advantageous effects

1. This driving unhooking device through rotating the dead weight clamp plate of the outside fixed connection in pivot and pivot both ends that cup joints in bottom plate one side inside, after the rings cup joints in the outside of lifting hook, the dead weight clamp plate is because the spacing of receiving the pivot and through lever principle for the right side weight of dead weight clamp plate is greater than left side weight, then make the right side of dead weight clamp plate push down, and the left side of dead weight clamp plate lifts up, when the right side of dead weight clamp plate pushes down, movable gag lever post linkage pushes down until offset with the outside of lifting hook, make the pushing down of dead weight clamp plate stop, then make the left side of dead weight clamp plate lock the top of lifting hook, from this makes rings by spacing in the outside of lifting hook, can not lead to the left side of dead weight clamp plate to open at the removal in-process, the effect of this device anti-slip has been improved.

2. This driving unhook device, through the activity gag lever post that cup joints in the inside slip of adjustment tank, when this device needs control dead weight clamp plate left side to open, rotate the outside nut of screw rod, make the activity gag lever post landing to the bottom of adjustment tank, from this, make the lifting hook lose the spacing to the dead weight clamp plate, then the dead weight clamp plate is owing to self weight and lever principle, the right side pushes down completely, make the left side of dead weight clamp plate lift up, then make the top of lifting hook open, when needs locking lifting hook top, then pulling the activity gag lever post, make the activity gag lever post slide to the top of lifting hook one side, make the trend that the dead weight clamp plate pushed down receive the spacing of lifting hook offset, then make the dead weight clamp plate stop pushing down, thereby make the left side of dead weight clamp plate stop open and maintain the state with the lifting hook locking, the convenience of lifting hook headspace has been opened to this device has been improved.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the structure of the hook of the present utility model;

FIG. 3 is a schematic view of the structure of the self-weight platen of the present utility model;

fig. 4 is a schematic structural view of the movable stop lever of the present utility model.

In the figure: 1. a cross beam; 2. pulley block; 3. a rail groove; 4. a connecting rod; 5. a bottom plate; 6. a rotating shaft; 7. a side limit plate; 8. a dead weight pressing plate; 9. an adjustment tank; 10. a movable limit rod; 11. square slide block; 12. a screw; 13. a lifting hook; 14. and (5) hanging rings.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-2, the anti-unhooking device for traveling crane comprises a cross beam 1, wherein the cross beam 1 is used as a bearing structure of the device, the effect of connecting a pulley block 2 and a connecting rod 4 is achieved, the stability of the device is improved, the bottom of the cross beam 1 is fixedly connected with the connecting rod 4, the connecting rod 4 is used as a bottom connecting structure of the device, the effect of connecting a limiting bottom plate 5 is achieved, the stability of the bottom plate 5 is improved, the bottom of the connecting rod 4 is fixedly provided with the bottom plate 5, the bottom plate 5 is used as a limiting structure of the device, the rotating shaft 6 is limited while the lifting hook 13 is connected, so that a dead weight pressing plate 8 can be rotated and adjusted in the bottom plate 5 through the rotating shaft 6, the steering and adjusting fluency of the dead weight pressing plate 8 is improved, the rotating shaft 6 is sleeved in the inner rotating part on one side of the bottom plate 5, the rotating shaft 6 is used as a central supporting rod of the device, the self-locking mechanism has the advantages that the self-locking mechanism is used as a lever in a lever principle to play a role in limiting the self-weight pressing plate 8, the self-weight pressing plate 8 is fixedly connected with the self-weight pressing plate 8 at the outer parts of the two ends of the rotating shaft 6, the self-weight pressing plate 8 is used as a self-locking structure of the self-locking mechanism, the right weight of the self-weight pressing plate 8 is always larger than the left weight through the influence of self gravity and the lever influence of the rotating shaft 6, the regulating groove 9 is formed in the self-weight pressing plate 8, the regulating groove 9 is used as a limiting structure of the self-locking mechanism, enough advancing space is reserved for the movement regulation of the movable limiting rod 10, the movable limiting rod 10 is sleeved in the regulating groove 9 in a sliding manner, the movable limiting rod 10 is used as an auxiliary limiting structure of the self-locking mechanism, the self-locking mechanism can be propped against the right top of the lifting hook 13 through the position of the self-weight pressing plate 10, and the self-weight pressing plate 8 can be limited through the lifting hook 13, the right side of making dead weight clamp plate 8 pushes down the process and can stop pushing down in dead weight clamp plate 8's left side and reach the dead lifting hook 13 headspace, guaranteed dead weight clamp plate 8's stability, the left end fixedly connected with square slider 11 of movable gag lever post 10, square slider 11 is as the locking structure of this device, its locking linkage movable gag lever post 10 through self to dead weight clamp plate 8 has improved the fixed stability of this device movable gag lever post 10, the right-hand member fixedly connected with screw rod 12 of movable gag lever post 10, screw rod 12 is as the limit structure of this device, it has ensured that movable gag lever post 10 is located the inside of adjustment tank 9 all the time, and when having ensured movable gag lever post 10 at the inside regulation removal of adjustment tank 9, can not produce the skew, the stability of movable gag lever post 10 removal has been guaranteed.

Please refer to fig. 3-4, the rail groove 3 has been seted up to the both sides fixedly connected with assembly pulley 2 of crossbeam 1, assembly pulley 2 and rail groove 3 regard as prior art, this application no longer carries out detailed description, the outside both sides fixedly connected with side limiting plate 7 of pivot 6, side limiting plate 7 is as the limit structure of this device, it has been ensured that dead weight clamp plate 8 can not take place the condition of lateral deviation when turning to the regulation, the stability of dead weight clamp plate 8 rotation regulation has been guaranteed, side limiting plate 7 is located the both sides of bottom plate 5, and side limiting plate 7 offsets with the both sides of bottom plate 5, the bottom fixedly connected with lifting hook 13 of bottom plate 5, lifting hook 13 and rings 14 are as prior art, this application is no longer detailed in detail, lifting hook 13's outside slip cup joints rings 14, the appearance of dead weight clamp plate 8 is the L style of calligraphy, lifting hook 13 is located the below of dead weight clamp plate 8, and lifting hook 13 does not interfere with the motion track of dead weight clamp plate 8 left end, the left end of lifting hook clamp plate 8 has a certain distance with the square department of left end hook tip of 13, this distance is 3-5mm, the outside of slider 11 is equipped with the outside of baffle, the outside of baffle 12 is equipped with the nut.

Working principle: when the device is used, when the top space of the lifting hook 13 needs to be opened, firstly, the nut outside the lifting hook 12 is rotated, the movable limiting rod 10 and the self-weight pressing plate 8 are changed into a movable state, then, the movable limiting rod 10 slides to the right side of the regulating groove 9 due to the influence of gravity, then, the right side gravity of the self-weight pressing plate 8 is increased, and the left side of the self-weight pressing plate 8 is lifted upwards due to the factors of the limited rotating shaft 6 and the lever principle, the locking limit of the left end of the self-weight pressing plate 8 is simultaneously caused, at this time, the lifting ring 14 is sleeved outside the lifting hook 13, then the movable limiting rod 10 is pulled upwards, the weight of the movable limiting rod 10 at the left side in the regulating groove 9 is reduced, the left side of the self-weight pressing plate 8 is caused to be pressed downwards due to the influence of the gravity, the right side of the limiting rod 8 is lifted upwards, when the movable limiting rod 10 moves to the top upper side of the top of the lifting hook 13, then, the self-weight pressing plate 8 is pressed against the left side of the self-weight pressing plate 8 by the movable limiting rod 12, the self-weight pressing plate 8 is released from the left side of the self-weight pressing plate 8, and the self-weight pressing plate 8 is stopped in the process of the left side of the self-weight pressing plate 8, and the self-weight pressing plate 8 is released, and the self-weight of the self-weight pressing plate 8 is caused by the self-weight limiting rod 8 is released, and the self-weight of the self-weight 8 is released from the left side of the inside the self-weight pressing plate 8.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a driving unhooking prevention device, includes crossbeam (1), its characterized in that: the bottom fixedly connected with connecting rod (4) of crossbeam (1), the bottom of connecting rod (4) is fixed with bottom plate (5), inside rotation of bottom plate (5) one side has cup jointed pivot (6), the outside fixedly connected with dead weight clamp plate (8) at pivot (6) both ends, adjustment tank (9) have been seted up to the inside of dead weight clamp plate (8), movable gag lever post (10) have been cup jointed in the inside slip of adjustment tank (9), square slider (11) of left end fixedly connected with of activity gag lever post (10), the right-hand member fixedly connected with screw rod (12) of activity gag lever post (10).

2. The running unhooking prevention device according to claim 1, wherein: the two sides of the cross beam (1) are fixedly connected with pulley blocks (2), and rail grooves (3) are formed in the pulley blocks (2).

3. The running unhooking prevention device according to claim 1, wherein: the two sides of the outside of the rotating shaft (6) are fixedly connected with side limit plates (7), the side limit plates (7) are positioned on the two sides of the bottom plate (5), and the side limit plates (7) are propped against the two sides of the bottom plate (5).

4. The running unhooking prevention device according to claim 1, wherein: the bottom of the bottom plate (5) is fixedly connected with a lifting hook (13), and a lifting ring (14) is sleeved outside the lifting hook (13) in a sliding manner.

5. The running unhooking apparatus of claim 4, wherein: the appearance of dead weight clamp plate (8) is L style of calligraphy, lifting hook (13) are located the below of dead weight clamp plate (8), and lifting hook (13) do not interfere with the motion track of dead weight clamp plate (8) left end.

6. The running unhooking prevention device according to claim 1, wherein: the outside of square slider (11) is equipped with the baffle, the outside of screw rod (12) is equipped with the nut.

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