CN111217236B

CN111217236B - Crane hook anticreep protection device

Info

Publication number: CN111217236B
Application number: CN202010141396.7A
Authority: CN
Inventors: 曹中跃
Original assignee: Shanghai Zhiyou Construction Machinery Co ltd
Current assignee: Shanghai Zhiyou Construction Machinery Co.,Ltd.
Priority date: 2020-03-04
Filing date: 2020-03-04
Publication date: 2021-06-29
Anticipated expiration: 2040-03-04
Also published as: CN111217236A

Abstract

The invention relates to the technical field of cranes and discloses an anti-falling protection device for a crane hook, which comprises a pulley disc, wherein the front side of the pulley disc is fixedly connected with a connecting plate, the surface of the connecting plate is fixedly connected with a display, the bottom of the connecting plate is provided with a hook, the top of an internal cross beam is provided with a pressure sensor, the right side of the cross beam is provided with a screw hole, the inside of the screw hole is fixedly connected with a steel wire rope, the right end of the steel wire rope is fixedly connected with an auxiliary hook, and the surface of an accessory box is provided with. This crane hook anticreep protection device uses through the cooperation of pressure sensor and display, can clearly obtain the weight of hanging the thing and control the end and bear gravity, can compare with mechanical maximum value, sees whether can hoist, and pressure sensor is last powerful, and the pivot will make the safety hook be in the closure state, shows at the great one end of display atress and installs an auxiliary lifting hook additional, can prevent to rise the in-process focus unstability, hangs the thing landing.

Description

Crane hook anticreep protection device

Technical Field

The invention relates to the technical field of cranes, in particular to a crane hook anti-falling protection device.

Background

The crane refers to a multi-action hoisting machine for vertically lifting and horizontally carrying heavy objects within a certain range, which is also called a crown block, a crane and a crane, along with the continuous development of the Chinese industrial technology, the development and the use of the crane on the market are more and more extensive, but because a lot of accidents occur due to improper operation of operators or mechanical reasons, the problems of exceeding the lifted weight, falling of the lifted objects and the like all cause overweight accidents, and therefore, a novel lifting hook device is provided for solving the problems.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the crane hook anti-falling protection device which has the advantages of falling prevention and high safety, and solves the problems of easy falling and low safety.

(II) technical scheme

In order to achieve the purposes of falling prevention and high safety, the invention provides the following technical scheme: a crane hook anti-falling protection device comprises a pulley disc, wherein a screw is fixedly arranged on the surface of the pulley disc, a connecting plate is fixedly connected to the front surface of the pulley disc, a fastening screw is fixedly connected to the surface of the connecting plate, a groove is formed in the surface of the fastening screw, a display is fixedly connected to the surface of the connecting plate, a pulley is movably connected to the inside of the pulley disc, a through hole is formed in the surface of the pulley, accessory boxes are connected to the left side and the right side of the connecting plate, a hook is fixedly connected to the bottom of the connecting plate, a safety hook is movably connected to the surface of the hook, a rotating shaft is fixedly connected to the top of the safety hook, a bolt head is fixedly connected to the top of the hook, a cross beam is movably connected to the outside of the bolt head, a pressure sensor is movably, the screw hole has been seted up on the right side of crossbeam, the inside fixedly connected with wire rope in screw hole, wire rope's right-hand member fixedly connected with assists the lifting hook, the left end fixedly connected with connecting block of assisting the lifting hook, rope outlet hole and connecting block hole have been seted up respectively on the surface of annex case.

Preferably, there are 6 of said screws, symmetrically distributed about the central vertical line of the device.

Preferably, the display displays three sets of data including total pressure, pressure sensor left end pressure and pressure sensor left end pressure.

Preferably, the inside of the additional box is a cavity.

Preferably, the groove is provided with a screw therein.

Preferably, a driver is arranged in the rotating shaft, and the driver is in bidirectional electrical connection with the pressure sensor.

Preferably, the diameter of the connecting block is smaller than that of the steel wire rope.

(III) advantageous effects

Compared with the prior art, the invention provides a crane hook anti-drop protection device, which has the following beneficial effects:

1. this crane hook anticreep protection device uses through the cooperation of pressure sensor and display, can clearly obtain the weight of hanging the thing, can compare with mechanical maximum value, sees whether can hang, and the display still can show left and right ends and bear gravity to this adjusts the focus, can reach safe and reliable prevents that the focus is unstable landing.

2. This crane hook anticreep protection device uses through pivot and pressure sensor's cooperation, as long as pressure sensor is last powerful, and the pivot will make the safety hook be in the closure state, prevents to hang the thing and deviate from.

3. This crane hook anticreep protection device through the use of two auxiliary lifting hooks, behind surveying focus skew direction, can't the accuracy obtain concrete position, shows at the great one end of atress of display and installs an auxiliary lifting hook additional, can prevent to rise the in-process focus unstability, hangs the thing landing.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an enlarged view of the structure at A in FIG. 1 according to the present invention;

fig. 3 is a schematic side view of the structure of the present invention.

In the figure: pulley plates 1, screws 2, fastening screws 3, grooves 4, displays 5, pulleys 6, through holes 7, connecting plates 8, additional boxes 9, lifting hooks 10, safety hooks 11, rotating shafts 12, bolt heads 13, cross beams 14, pressure sensors 15, nuts 16, screw holes 17, steel wire ropes 18, auxiliary lifting hooks 19, connecting block holes 20, rope holes 21 and connecting blocks 22.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, a crane hook anti-drop protection device comprises a pulley disc 1, wherein the surface of the pulley disc 1 is fixedly provided with screws 2, the screws 2 are 6 and are symmetrically distributed about a vertical line, the front surface of the pulley disc 1 is fixedly connected with a connecting plate 8, the surface of the connecting plate 8 is fixedly connected with a fastening screw 3, the surface of the fastening screw 3 is provided with a groove 4, the groove 4 is internally provided with screws, the surface of the connecting plate 8 is fixedly connected with a display 5, the display 5 displays three groups of data comprising total pressure, pressure at the left end of a pressure sensor 15 and pressure at the right end of the pressure sensor 15, the pulley disc 1 is movably connected with a pulley 6, the pulley 6 is mechanically connected with a steel wire rope, the surface of the pulley 6 is provided with a through hole 7, the left side and the right side of the connecting plate 8 are both connected with an accessory box 9, the bottom of the connecting plate 8 is fixedly connected with a lifting hook 10, the surface of the lifting hook 10 is movably connected with a safety hook 11, the safety hook 11 prevents a lifted object from sliding down when in action, the top of the safety hook 11 is fixedly connected with a rotating shaft 12, a driver is arranged in the rotating shaft 12 and is connected with a pressure sensor 15, the top of the lifting hook 10 is fixedly connected with a bolt head 13, the outer part of the bolt head 13 is movably connected with a cross beam 14, the top of the cross beam 14 is movably connected with the pressure sensor 15, the top of the pressure sensor 15 is movably connected with a nut 16, the right side of the cross beam 14 is provided with a screw hole 17, the inner part of the screw hole 17 is fixedly connected with a steel wire rope 18, the right end of the steel wire rope 18 is fixedly connected with an auxiliary lifting hook 19, the left end of the auxiliary lifting hook 19 is fixedly, thereby, the wire rope 18 is clamped in the additional box 9 to prevent the wire rope from accidentally sliding off.

The working process and principle are as follows: the hoist is started, the heavy object is hoisted through lifting hook 10, pressure acts on pressure sensor 15, at this moment safety hook 11 is rotated by the effect of pivot 12, block up lifting hook 10, display 5 can show the weight of the hoisted object, if overweight just no longer lift by crane, if do not have overweight, look at left right side pressure data, adjust lifting hook 10 position, wait to when unable accurate finding the focus position, in the great one end of pressure, pull up auxiliary hook 19, take out wire rope 18 through rope hole 21, install auxiliary hook 19 on the hoisted object, be used for balanced, lift by crane, it reaches assigned position, relax lifting hook 10, no longer powerful on the pressure sensor 15, safety hook 11 gyration, withdraw auxiliary hook 19, take off lifting hook 10, carry out next work.

In conclusion, the crane hook anti-drop protection device can clearly obtain the weight of a hung object by matching the pressure sensor 15 with the display 5, can compare with the maximum value which can be borne by machinery, and can see whether the crane hook can be hung up, and the display 5 can also display the left end and the right end to bear the weight, so that the gravity center can be adjusted, and the purpose of safely and reliably preventing the gravity center from unstably sliding down can be achieved.

This crane hook anticreep protection device uses through the cooperation of pivot 12 and pressure sensor 15, as long as pressure sensor 15 is last powerful, pivot 12 will make safety hook 11 be in the closure state, prevents to hang the thing and deviate from.

This crane hook anticreep protection device through two auxiliary lifting hook 19's use, behind surveying focus skew direction, can't the accuracy obtain concrete position, shows at display 5 that the great one end of atress installs an auxiliary lifting hook 19 additional, can prevent to rise the in-process focus unstability, hangs the thing landing.

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

Claims

1. The utility model provides a hoist lifting hook anticreep protection device, includes pulley disc (1), its characterized in that: the surface of the pulley plate (1) is fixedly provided with screws (2), the front surface of the pulley plate (1) is fixedly connected with a connecting plate (8), the surface of the connecting plate (8) is fixedly connected with fastening screws (3), the surface of the fastening screws (3) is provided with grooves (4), the surface of the connecting plate (8) is fixedly connected with a display (5), the inside of the pulley plate (1) is movably connected with pulleys (6), the surface of the pulleys (6) is provided with through holes (7), the left side and the right side of the connecting plate (8) are both connected with accessory boxes (9), the bottom of the connecting plate (8) is fixedly connected with a lifting hook (10), the surface of the lifting hook (10) is movably connected with a safety hook (11), the top of the safety hook (11) is fixedly connected with a rotating shaft (12), and the top of the lifting hook (10) is fixedly connected with, a cross beam (14) is movably connected to the outer portion of the bolt head (13), a pressure sensor (15) is movably connected to the top of the cross beam (14), a nut (16) is movably connected to the top of the pressure sensor (15), screw holes (17) are formed in the left side and the right side of the cross beam (14), a steel wire rope (18) is fixedly connected to the inner portion of each screw hole (17), one end of the steel wire rope (18) is fixedly connected with one end of an auxiliary lifting hook (19), one end, connected with the steel wire rope (18), of each auxiliary lifting hook (19) is fixedly connected with a connecting block (22), and a rope outlet hole (21) and a connecting block hole (20) are formed in the surface of the accessory box (;

the display (5) displays three groups of data, including total pressure, pressure at the left end of the pressure sensor (15) and pressure at the right end of the pressure sensor (15);

the interior of the accessory box (9) is a cavity;

a driver is arranged in the rotating shaft (12), and the driver is in bidirectional electric connection with the pressure sensor (15);

the diameter of the connecting block (22) is smaller than that of the steel wire rope (18).

2. The crane hook anti-drop protection device as claimed in claim 1, wherein: the number of the screws (2) is 6, and the screws are symmetrically distributed about a central vertical line of the device.

3. The crane hook anti-drop protection device as claimed in claim 1, wherein: screws are arranged in the grooves (4).