CN219751648U

CN219751648U - Double-lifting hook structure of crane

Info

Publication number: CN219751648U
Application number: CN202223417968.3U
Authority: CN
Inventors: 夏崇汉; 张健; 曹俊
Original assignee: Ledwork Intelligent Equipment Technology Jiangsu Co ltd
Current assignee: Ledwork Intelligent Equipment Technology Jiangsu Co ltd
Priority date: 2022-12-20
Filing date: 2022-12-20
Publication date: 2023-09-26
Anticipated expiration: 2032-12-20

Abstract

The utility model belongs to the technical field of cranes, in particular to a double-hook structure of a crane, which comprises a transverse slat; the two end surfaces of the transverse slat are respectively provided with a hook frame in a sliding fit manner; an adjusting screw is connected with the center of the bottom of the cross bar plate in a threaded manner; the side surface of the circumference of the bottom end of the adjusting screw is rotationally connected with an end seat; connecting rods are hinged to two side surfaces of the end seat; the other ends of the two connecting rods are respectively hinged with the two hook frames; the hook frame comprises a movable guide block; limiting guide bars are arranged on two side surfaces of the movable guide block; the bottom of the movable guide block is provided with a lifting hook; one end of the lifting hook, which is close to the movable guide block, is rotationally connected with a closing lock catch; the top end of the movable guide block is provided with a tray seat; the pulley is arranged in the tray seat; the utility model has the advantages that the adjusting screw is mutually matched with the threaded holes on the surface of the transverse bar plate by rotating the adjusting screw, and the two connecting rods are driven to turn over by the end seat, so that the two hook frames are driven to move along the two ends of the transverse bar plate, the distance between the two hook frames is adjusted, the swing of hoisting articles is reduced, and the stability of hoisting is ensured.

Description

Double-lifting hook structure of crane

Technical Field

The utility model relates to the technical field of lifting hooks, in particular to a double-lifting hook structure of a crane.

Background

The lifting hook of the crane is usually hung on a steel wire rope of a lifting mechanism by means of pulley blocks and other parts, and a heavy object is hung on the lifting hook to lift the heavy object. For relatively small and lightweight objects, single hooks are typically used for lifting. For large-size and heavy objects, a plurality of lifting hooks are required to be arranged under the lifting appliance for lifting, so that the lifting stability is improved, and the lifting safety is improved. With the increase of the volume and the weight of an object to be hoisted, the lifting hook is more and more unstable, and the amplitude of swing in the hoisting process is larger. The stability is better by adopting double lifting hooks for objects with medium volume and weight.

For the lifting of an object hung on the two lifting hooks through the flexible lifting ring, the smaller the distance between the two lifting hooks is, the easier the lifted object swings, and engineers find that if the distance between the two lifting hooks is adjusted according to the size of the object in actual operation, the swing amplitude of the object can be effectively reduced, and the object can be lifted more stably.

Disclosure of Invention

Aiming at the defect of large swing amplitude in the object hoisting process in the prior art, the utility model aims to provide a double-hook structure of a crane with adjustable distance between two hooks.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

a double-hook structure of a crane comprises a transverse slat; the surfaces of the two ends of the transverse strip plate are respectively provided with a hook frame in a sliding fit manner; an adjusting screw is connected with the center of the bottom of the cross bar plate in a threaded manner; the side face of the circumference of the bottom end of the adjusting screw is rotationally connected with an end seat; connecting rods are hinged to two side surfaces of the end seat; the other ends of the two connecting rods are respectively hinged with the two hook frames; the hook frame comprises a movable guide block; limiting guide bars are arranged on two side surfaces of the movable guide block; the bottom of the movable guide block is provided with a lifting hook; one end of the lifting hook, which is close to the movable guide block, is rotationally connected with a closing lock catch; the top end of the movable guide block is provided with a tray seat; the inside pulley that is equipped with of tray seat.

The utility model is further provided with: the surfaces of the two ends of the transverse strip plate are provided with channels matched with the movable guide blocks; the inner walls of the two sides of the channel are provided with limiting guide grooves matched with the limiting guide bars; and a threaded hole matched with the adjusting screw is formed in the center of the cross bar plate.

The utility model is further provided with: the end part of the adjusting screw is provided with an inner hexagonal end head; and a limit ring groove is formed in the side face of one end of the adjusting screw close to the inner hexagonal end head.

The utility model is further provided with: a shaft hole matched with the limit ring groove is formed between the two end faces of the end seat; the two sides of the end seat are respectively provided with a first hinge seat which is mutually connected with the end part of the connecting rod.

The utility model is further provided with: a connecting shaft which is connected with the opening of the lifting hook in a mutually rotating way is arranged at one end part of the closing lock catch; and a torsion spring is sleeved on the peripheral side surface of the connecting shaft.

The utility model is further provided with: the side of the top end of the lifting hook is provided with a second hinged support which is connected with the end part of the connecting rod.

The utility model has the advantages that the adjusting screw is mutually matched with the threaded holes on the surface of the transverse strip plate by rotating the adjusting screw, and the two connecting rods are driven to turn over by the end seat, so that the two hook frames are driven to move along the two ends of the transverse strip plate, the distance between the two hook frames is adjusted, the swing of hoisting articles is reduced, the stability of hoisting is ensured, and the safety performance is higher.

Drawings

Fig. 1 is a schematic structural view of a double hook structure of a crane according to the present utility model.

Fig. 2 is a schematic structural view of the transverse slat of the present utility model.

Fig. 3 is a schematic structural view of the hook frame of the present utility model.

Fig. 4 is a schematic structural view of the adjusting screw of the present utility model.

Fig. 5 is a schematic structural view of the end socket of the present utility model.

Fig. 6 is a schematic structural view of the closure lock of the present utility model.

In the figure: 1. a transverse slat; 2. a hook frame; 3. adjusting a screw; 4. an end seat; 5. a connecting rod; 6. closing the lock catch; 7. a pulley; 101. a channel; 102. a limiting guide groove; 103. a threaded hole; 201. a moving guide block; 202. limiting guide bars; 203. a lifting hook; 204. a tray seat; 205. a second hinge support; 301. an inner hexagonal end; 302. a limit ring groove; 401. a shaft hole; 402. a first hinge support; 601. a connecting shaft; 602. and a torsion spring.

Detailed Description

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.

It is noted that all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs unless otherwise indicated.

In the present utility model, unless otherwise indicated, the terms "upper" and "lower" are used generally with respect to the directions shown in the drawings, or with respect to the vertical, vertical or gravitational directions; also, for ease of understanding and description, "left, right" is generally directed to the left, right as shown in the drawings; "inner and outer" refer to inner and outer relative to the outline of the components themselves, but the above-described orientation terms are not intended to limit the present utility model.

Examples

Referring to fig. 1-6, the present utility model provides the following technical solutions:

in particular to a double-hook structure of a crane, which comprises a transverse slat 1; the two end surfaces of the transverse slat 1 are respectively in sliding fit with a hook frame 2; the hook 2 comprises a moving guide block 201; limiting guide bars 202 are arranged on two side surfaces of the movable guide block 201; the center of the bottom of the transverse slat 1 is connected with an adjusting screw 3 through threads; the two end surfaces of the transverse slat 1 are provided with a channel 101 matched with the movable guide block 201; the inner walls of the two sides of the channel 101 are provided with limit guide grooves 102 matched with limit guide bars 202; a threaded hole 103 matched with the adjusting screw 3 is formed in the center of the transverse slat 1; the end part of the adjusting screw 3 is provided with an inner hexagonal end 301; a limit ring groove 302 is formed in the side face of one end of the adjusting screw 3, which is close to the inner hexagonal end 301; the side surface of the circumference of the bottom end of the adjusting screw 3 is rotationally connected with an end seat 4; the two side surfaces of the end seat 4 are hinged with connecting rods 5; the other ends of the two connecting rods 5 are respectively hinged with the two hook frames 2; a shaft hole 401 matched with the limit ring groove 302 is formed between two end surfaces of the end seat 4; the two sides of the end seat 4 are provided with a first hinged seat 402 which is mutually connected with the end part of the connecting rod 5; the bottom of the movable guide block 201 is provided with a lifting hook 203; the side surface of the top end of the lifting hook 203 is provided with a second hinged support 205 which is connected with the end part of the connecting rod 5; one end of the lifting hook 203, which is close to the moving guide block 201, is rotatably connected with a closing lock catch 6; a connecting shaft 601 which is connected with the opening part of the lifting hook 203 in a mutually rotating way is arranged at one end part of the closing lock catch 6; torsion springs 602 are sleeved on the peripheral side surfaces of the connecting shafts 601; a tray 204 is arranged at the top end of the movable guide block 201; the pulley 7 is arranged inside the tray 204.

The working principle of the double-hook structure of the crane provided by the utility model is as follows: through rotating the interior hexagonal end 301 of adjusting screw 3 tip, the screw hole 103 with horizontal bar board 1 central point puts mutually supporting when adjusting screw 3 rotates, and the end seat 4 that is located adjusting screw 3 tip cover and establishes drives connecting rod 5 upset through the first hinge seat 402 of both sides, and the connecting rod 5 other end and hook frame 2 interconnect, simultaneously hook frame 2 is through the spacing guide bar 202 of removal guide block 201 both sides and the spacing guide slot 102 in the channel 101 at horizontal bar board 1 both ends mutually supporting for connecting rod 5 drives hook frame 2 and removes along horizontal bar board 1, thereby adjusts the interval between two hook frames 2, has reduced the swing of article hoist and mount, has guaranteed the stability of hoist and mount, and the security performance is stronger.

It will be apparent that the embodiments described above are merely some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present utility model. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present utility model and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the utility model described herein may be implemented in sequences other than those illustrated or otherwise described herein.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

The above description is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the present utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.

Claims

1. The utility model provides a two lifting hook structures of hoist which characterized in that:

comprises a transverse slat (1); the two end surfaces of the cross bar plate (1) are respectively in sliding fit with a hook frame (2); an adjusting screw (3) is connected with the center of the bottom of the horizontal strip plate (1) in a threaded manner; the side surface of the circumference of the bottom end of the adjusting screw (3) is rotationally connected with an end seat (4); connecting rods (5) are hinged to two side surfaces of the end seat (4); the other ends of the two connecting rods (5) are respectively hinged with the two hook frames (2);

the hook frame (2) comprises a moving guide block (201); limiting guide bars (202) are arranged on two side surfaces of the movable guide block (201); the bottom of the movable guide block (201) is provided with a lifting hook (203); one end of the lifting hook (203) close to the movable guide block (201) is rotatably connected with a closing lock catch (6);

a tray seat (204) is arranged at the top end of the movable guide block (201); the pulley (7) is arranged in the disc seat (204).

2. The double hook structure of a crane of claim 1, wherein: the surfaces of the two ends of the cross bar plate (1) are provided with grooves (101) matched with the movable guide blocks (201); the inner walls of the two sides of the channel (101) are provided with limiting guide grooves (102) matched with the limiting guide bars (202); the center of the cross bar plate (1) is provided with a threaded hole (103) matched with the adjusting screw (3).

3. The double hook structure of a crane of claim 1, wherein: an inner hexagonal end head (301) is arranged at the end part of the adjusting screw rod (3); and a limit ring groove (302) is formed in the side surface of the periphery of one end, close to the inner hexagonal end head (301), of the adjusting screw (3).

4. The double hook structure of a crane of claim 1, wherein: a shaft hole (401) matched with the limit ring groove (302) is formed between two end surfaces of the end seat (4); the two sides of the end seat (4) are respectively provided with a first hinge seat (402) which is mutually connected with the end part of the connecting rod (5).

5. The double hook structure of a crane of claim 1, wherein: a connecting shaft (601) which is connected with the opening of the lifting hook (203) in a rotating way is arranged at one end part of the closing lock catch (6); torsion springs (602) are sleeved on the peripheral side surfaces of the connecting shafts (601).

6. The double hook structure of a crane of claim 1, wherein: the side surface of the top end of the lifting hook (203) is provided with a second hinged support (205) which is connected with the end part of the connecting rod (5).