CN212269208U

CN212269208U - High-safety unhooking-proof crane hook

Info

Publication number: CN212269208U
Application number: CN202020631653.0U
Authority: CN
Inventors: 王志勇; 陈彦明; 张昊文
Original assignee: Jiangsu Gretel Heavy Industry Technology Development Co ltd
Current assignee: Jiangsu Gretel Heavy Industry Technology Development Co ltd
Priority date: 2020-04-23
Filing date: 2020-04-23
Publication date: 2021-01-01
Anticipated expiration: 2030-04-23

Abstract

The utility model discloses a high safe mousing-hook's crane hook, including outer lifting hook and the rings of setting at its top, the junction of the vertical pole portion of outer lifting hook and arc pole portion runs through and is equipped with first pivot, the spacing groove has been seted up to outer lifting hook arc pole portion end, the inside interior lifting hook that is provided with in arc pole portion of outer lifting hook, the one end welding of interior lifting hook has spacing post, the extension end and the first pivot swivelling joint of spacing post. The utility model discloses in, through the elastic action whether hang object and spring, drive spacing post business turn over spacing groove, finally realize the automatic switching between outer lifting hook and the interior lifting hook, be convenient for hang going into of hanging thing steel cable to and the condition emergence that the steel cable of hanging thing breaks away from the lifting hook when preventing to jack up, simple structure, convenient operation has just saved operating time, improves work efficiency.

Description

High-safety unhooking-proof crane hook

Technical Field

The utility model relates to a crane hook technical field especially relates to a crane hook of high safe mousing-hook.

Background

The lifting hook is the most common lifting appliance in the hoisting machinery, the lifting hook is usually hung on a steel wire rope of a hoisting mechanism by means of a pulley block and other parts, and the lifting hook 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 laminated lifting hook, and the lifting hook is very wide in classification and generally comprises the following steps: the shackle is characterized by unique, novel, high-quality and safe characteristics, and is suitable for factories, mines, petroleum, chemical engineering, ship wharfs and the like.

In order to prevent heavy objects from falling off, an anti-falling mechanism is often arranged on a lifting hook, most of the existing anti-falling lifting hooks are provided with an elastic blocking piece at the position of a lifting hook opening, and the lifting hook opening is blocked by the elastic blocking piece, however, firstly, when a lifting rope and the like penetrate into the lifting hook, the elastic blocking piece is often required to be firstly pushed into the inner side of the lifting hook, the elastic blocking piece often occupies a larger space of the inner side of the lifting hook, sometimes the elastic blocking piece is blocked by the lifting rope sleeved on the inner side of a lifting hook body, so that the elastic blocking piece is difficult to reset, the automatic opening and closing function of the lifting hook is damaged, inconvenience is brought to the operation of workers, and the working efficiency is reduced, therefore, a crane lifting hook which can be automatically opened and closed and is easy to operate and has high safety and can not rotate mutually between the lifting hook body and the lifting ring, and is, the opening direction of the hook body of the lifting hook is fixed, so that the hook body of the lifting hook is inconvenient to hook and take heavy objects at different positions.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in order to solve the problems, a high-safety unhooking-proof crane hook is provided.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a high safe mousing-hook's crane hook, includes outer lifting hook and sets up the rings at its top, the junction of the vertical pole portion of outer lifting hook and arc pole portion runs through and is equipped with first pivot, the spacing groove has been seted up to outer lifting hook arc pole portion end, the inside interior lifting hook that is provided with in arc pole portion of outer lifting hook, the one end welding of interior lifting hook has spacing post, the extension end and the first pivot swivelling joint of spacing post.

As a further description of the above technical solution:

the arc rod parts of the outer lifting hook and the inner lifting hook are concentric, and the tail end of the arc rod part of the inner lifting hook is positioned below the tail end of the arc rod part of the outer lifting hook.

As a further description of the above technical solution:

the outer lifting hook is provided with a spring on the inner surface wall of the arc rod part in the vertical direction, and the extension end of the spring is elastically connected with the outer surface wall of the inner lifting hook in the same position.

As a further description of the above technical solution:

and a plurality of anti-skid bulges are arranged on the inner surface wall of the inner lifting hook.

As a further description of the above technical solution:

the top welding of the vertical pole portion of outer lifting hook has the second pivot, the rings bottom is provided with the stop collar, the second pivot passes to cup joint in the stop collar, and the extension end outside at its top rotates installs the bearing.

As a further description of the above technical solution:

the inner surface wall of the limiting sleeve is provided with a plurality of tooth grooves which are arranged around the circle center at equal angles, the outer surface wall of the second rotating shaft is provided with a plurality of clamping teeth which are arranged around the circle center at equal angles, and the clamping teeth are meshed with the tooth grooves.

As a further description of the above technical solution:

a bolt penetrates through one side of the limiting sleeve, the penetrating positions are connected through threads, and the bolt is located between every two adjacent tooth grooves.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. the utility model discloses in, through the elastic action whether hang object and spring, drive spacing post business turn over spacing groove, finally realize the automatic switching between outer lifting hook and the interior lifting hook, be convenient for hang going into of hanging thing steel cable to and the condition emergence that the steel cable of hanging thing breaks away from the lifting hook when preventing to jack up, simple structure, convenient operation has just saved operating time, improves work efficiency.

2. The utility model discloses in, the meshing through the latch between stop collar and the second pivot is rotated to change the direction of lifting hook, through the bolt in closing into the clearance between stop collar and the second pivot soon, restrict the rotation each other between stop collar and the second pivot, thereby fixed outer lifting hook direction, the heavy object of different positions departments is got to the outer lifting hook coupler body hook of convenient to use.

Drawings

Fig. 1 shows a schematic partial cross-sectional view of an outer and inner hook provided in accordance with an embodiment of the present invention;

fig. 2 shows a schematic partial cross-sectional view of a lifting ring provided according to an embodiment of the invention;

fig. 3 shows a schematic cross-sectional view at a-a provided according to an embodiment of the present invention.

Illustration of the drawings:

1. an outer hook; 101. a limiting groove; 2. a first rotating shaft; 3. an inner hook; 301. anti-skid projections; 4. a limiting column; 5. a spring; 6. a second rotating shaft; 7. a hoisting ring; 701. a limiting sleeve; 8. and (4) bolts.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a high-safety unhooking-proof crane hook comprises an outer hook 1 and a lifting ring 7 arranged at the top of the outer hook, wherein a first rotating shaft 2 penetrates through the joint of a vertical rod part of the outer hook 1 and an arc rod part to ensure that the outer hook 1 and an inner hook 3 can rotate mutually, a limiting groove 101 is formed in the tail end of the arc rod part of the outer hook 1, the inner hook 3 is arranged inside an arc section of the outer hook 1, a limiting column 4 is welded at one end of the inner hook 3, the extending end of the limiting column 4 is rotatably connected with the first rotating shaft 2, the limiting column 4 and the inner hook 3 rotate synchronously, a spring 5 is arranged on the inner surface wall of the arc rod part of the outer hook 1 in the vertical direction, the extending end of the spring 5 is elastically connected with the outer surface wall of the inner hook 3 in the same position, when the inner hook 3 is empty, namely an object is not hung, the inner hook 3 rotates upwards on the inner side of the outer hook 1 under the elastic action of the spring, and drives the first rotating shaft 2 to rotate upwards, so that the limiting post 4 is separated from the limiting groove 101, the open ends of the outer lifting hook 1 and the inner lifting hook 3 are always in an open state, the steel rope for hanging objects can be hung conveniently, when the objects are hung on the inner lifting hook 3, under the action of the gravity of the object, the inner lifting hook 3 is driven to rotate around the first rotating shaft 2, the limiting column 4 synchronously rotates along with the inner lifting hook, through the clamping connection between the limiting column 4 and the limiting groove 101, the weight action of the combination body makes the limiting column 4 tightly pressed in the limiting groove 101, so that the steel rope for hanging objects is positioned in the closed ring formed by the outer lifting hook 1 and the inner lifting hook 3, thereby preventing the steel rope from being separated from the lifting hook when the crane lifts the objects, and automatic opening and closing can be realized between outer lifting hook 1 and interior lifting hook 3, simple structure saves operating time, improves work efficiency.

Specifically, as shown in fig. 1, the arc rod portions of the outer hook 1 and the inner hook 3 are concentric, so that the inner hook 3 is prevented from being interfered by the outer hook 1 when rotating around the first rotating shaft 2, the tail end of the arc rod portion of the inner hook 3 is located below the tail end of the arc rod portion of the outer hook 1, when the limiting column 4 is separated from the limiting groove 101, the distance between the tail ends of the arc rod portions of the outer hook 1 and the inner hook 3 is kept, and a steel rope for hanging an object can be hung conveniently.

Specifically, as shown in fig. 1, a plurality of anti-slip protrusions 301 are provided on the inner surface wall of the inner hook 3, so as to prevent a steel rope used for hanging objects from sliding on the inner hook 3, thereby improving the stability of the hanging objects when moving in the vertical direction.

Specifically, as shown in fig. 2, the second rotating shaft 6 is welded at the top of the vertical rod portion of the outer hook 1, the limiting sleeve 701 is arranged at the bottom of the hanging ring 7, the second rotating shaft 6 penetrates through the limiting sleeve 701 and is sleeved in the limiting sleeve 701, the bearing is rotatably arranged on the outer side of the extending end at the top of the second rotating shaft, and the outer hook 1 and the hanging ring 7 are connected through the connection between the limiting sleeve 701 and the second rotating shaft 6.

Specifically, as shown in fig. 2 and 3, the inner surface wall of the stop collar 701 is provided with a plurality of tooth grooves formed around the center of a circle at equal angles, the outer surface wall of the second rotating shaft 6 is provided with a plurality of latches formed around the center of a circle at equal angles, the latches are meshed with the tooth grooves to be connected, and according to the meshing transmission principle of the latches, mutual rotation between the stop collar 701 and the second rotating shaft 6 is realized, so that the direction of the outer lifting hook 1 is changed, and the outer lifting hook 1 can be conveniently used to hook heavy objects at different positions.

Specifically, as shown in fig. 2 and 3, a bolt 8 penetrates through one side of the stop collar 701, the penetration position is connected through threads, the bolt 8 is prevented from falling off, the bolt 8 is located between two adjacent tooth sockets, the bolt 8 is screwed into a gap between the stop collar 701 and the second rotating shaft 6, the engagement of the limiting latch is limited to rotate, the mutual rotation between the stop collar 701 and the second rotating shaft 6 is limited, the bolt 8 is screwed out of the penetration hole in the inner surface wall of the stop collar 701, the mutual rotation between the stop collar 701 and the second rotating shaft 6 is limited in a contacting mode, it is guaranteed that the stop collar 701 can rotate outside the second rotating shaft 6, and therefore the direction of the outer hook 1 is fixed.

The working principle is as follows: when in use, firstly, the bolt 8 is screwed outwards until the bolt 8 is positioned inside the through hole on the limiting sleeve 701, the outer lifting hook 1 is rotated, the limiting sleeve 701 and the second rotating shaft 6 are meshed and rotated through the latch, and then the direction of the outer lifting hook 1 is changed, then, the bolt 8 is screwed inwards until the bolt 8 is positioned in the gap between the limiting sleeve 701 and the second rotating shaft 6, the mutual rotation between the limiting sleeve 701 and the second rotating shaft 6 is limited, thereby fixing the direction of the outer hook 1, then hanging the steel rope of the hanging object on the inner hook 3, under the self-gravity of a suspension object, the spring 5 is compressed, the inner lifting hook 3 drives the limiting column 4 to rotate downwards around the first rotating shaft 2 until the limiting column 4 is inserted into the limiting groove 101, and the rotation is stopped, at the moment, the steel rope is positioned in a sealing ring formed by the outer lifting hook 1 and the inner lifting hook 3, so that the situation that the steel rope is separated from the lifting hook is prevented; in addition, when taking out the suspended object, exert including the power on lifting hook 3 disappears, spring 5 restores the original state, outside tensile, lifting hook 3 and spacing post 4 upwards rotate round first pivot 2 in the drive, make spacing post 4 break away from spacing groove 101, make the open end of outer lifting hook 1 and interior lifting hook 3 be in the open mode all the time, be convenient for hang the steel cable that hangs the object next time, can realize the automatic switching between the two according to hanging the object between outer lifting hook 1 and the interior lifting hook 3, moreover, the steam generator is simple in structure, the operation time is saved, and the work efficiency is improved.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a high safe mousing-hook's crane hook, includes outer lifting hook (1) and rings (7) of setting at its top, its characterized in that, the vertical pole portion of outer lifting hook (1) runs through with the junction of arc pole portion and is equipped with first pivot (2), spacing groove (101) have been seted up to outer lifting hook (1) arc pole portion end, lifting hook (3) in the arc section inside of outer lifting hook (1) is provided with, the one end welding of interior lifting hook (3) has spacing post (4), the extension end and first pivot (2) of spacing post (4) rotate to be connected.

2. A high safety mousing hook for cranes according to claim 1, characterised in that the curved bars of the outer hook (1) and the inner hook (3) are concentric and the end of the curved bar of the inner hook (3) is located below the end of the curved bar of the outer hook (1).

3. A high safety hook for crane against unhooking according to claim 1, characterized in that the outer hook (1) is provided with a spring (5) on the inner surface wall of the arc-shaped rod in vertical direction, and the extension end of the spring (5) is elastically connected with the outer surface wall of the inner hook (3) in the same position.

4. A high safety mousing hook for cranes as claimed in claim 1, characterised in that the inner surface wall of the inner hook (3) is provided with a plurality of anti-slip protrusions (301).

5. The high-safety unhooking-proof crane hook according to claim 1, characterized in that a second rotating shaft (6) is welded on the top of the vertical rod part of the outer hook (1), a limiting sleeve (701) is arranged at the bottom of the lifting ring (7), the second rotating shaft (6) penetrates through the limiting sleeve (701) and is sleeved in the limiting sleeve, and a bearing is rotatably mounted on the outer side of the extending end of the top of the second rotating shaft.

6. The high-safety hook for the crane with the function of preventing the unhooking as claimed in claim 5, wherein the inner surface wall of the limiting sleeve (701) is provided with a plurality of tooth grooves which are arranged at equal angles around the circle center, the outer surface wall of the second rotating shaft (6) is provided with a plurality of clamping teeth which are arranged at equal angles around the circle center, and the clamping teeth are meshed with the tooth grooves.

7. A high-safety unhooking-proof crane hook as claimed in claim 5, wherein a bolt (8) penetrates through one side of the limiting sleeve (701), the penetrating parts are connected through threads, and the bolt (8) is positioned between two adjacent tooth sockets.