CN217025027U

CN217025027U - Crane hook locking device

Info

Publication number: CN217025027U
Application number: CN202220546072.6U
Authority: CN
Inventors: 徐永贺; 兰超; 葛继放; 王卫华; 张博
Original assignee: Wuhai Baogang Wanteng Steel Co ltd
Current assignee: Wuhai Baogang Wanteng Steel Co ltd
Priority date: 2022-03-14
Filing date: 2022-03-14
Publication date: 2022-07-22
Anticipated expiration: 2032-03-14

Abstract

The utility model belongs to the technical field of crane hooks, and particularly relates to a crane hook locking device. The novel locking device not only can reduce the labor intensity of workers, but also can prolong the service life of the locking device and eliminate potential safety hazards. Comprises a crane hook body and a connecting frame connected with the hook body through a mounting shaft; it is characterized in that the connecting frame comprises an inverted U-shaped structure. A fixed handle is installed on one side of the inverted U-shaped structure, and a rotating handle is arranged above the fixed handle. The other side of the inverted U-shaped structure is fixed with a rectangular sliding sleeve, a sliding pin is arranged in the sliding sleeve, the sliding pin can freely move up and down relative to the sliding sleeve, and a rectangular opening slide way is formed in the sliding pin. The rotating handle penetrates through the inverted U-shaped structure and is rotationally connected with the inverted U-shaped structure through a rotating shaft, so that the rotating handle forms a seesaw structure; one end of the rotating handle penetrating through the inverted U-shaped structure is used as a first end to extend into the rectangular opening slide way, and the end part of the first end is in contact with the top in the rectangular opening slide way.

Description

Crane hook locking device

Technical Field

The utility model belongs to the technical field of crane hooks, and particularly relates to a crane hook locking device.

Background

The common hook locking device requires that a locking device consisting of a safety clamp, a double-torsion spring and a rivet is assembled on a hook with a lug. However, the locking device commonly used in the market is frequently damaged due to installation limitation, manufacturing process, on-site high-frequency use and other factors in the use process, and if the locking device is not recovered in time, the potential safety hazard of unhooking of the hoisting material can exist. The universal locking device is generally damaged in different degrees after about 10-15 days, such as the locking device failure phenomenon caused by dislocation of the safety clamp and the hook opening of the lifting hook, deformation of the safety clamp, damage of the double-torsion spring and the like. The repair process is time consuming, labor intensive and adds a certain production cost.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model provides a crane hook locking device.

In order to achieve the purpose, the utility model adopts the following technical scheme that the crane hook comprises a crane hook body and a connecting frame connected with the hook body through a mounting shaft; it is characterized in that the connecting frame comprises an inverted U-shaped structure.

A fixed handle is installed on one side of the inverted U-shaped structure, and a rotary handle is arranged above the fixed handle.

The other side of the inverted U-shaped structure is fixed with a rectangular sliding sleeve, a sliding pin is arranged in the sliding sleeve, the sliding pin can freely move up and down relative to the sliding sleeve, and a rectangular opening slide way is formed in the sliding pin.

The rotating handle penetrates through the inverted U-shaped structure and is rotationally connected with the inverted U-shaped structure through a rotating shaft, so that the rotating handle forms a seesaw structure; one end of the rotating handle penetrating through the inverted U-shaped structure is used as a first end to extend into the rectangular opening slide way, and the end part of the first end is in contact with the top in the rectangular opening slide way.

Further, when the rotating handle rotates around the rotating shaft, the first end part or the whole rotating handle is positioned in the rectangular opening slideway.

Furthermore, rotatory handle adopts and rolls over the arm structure, and when not the downward application of force in rotatory handle, the second end of rotatory handle is spacing for the horizontality by the type of falling U structure, and the sliding pin bottom contacts with the lifting hook head.

Furthermore, the sliding pin is a rectangular block, the shape of the rectangular block is the same as that of the rectangular sliding sleeve, and the size of the rectangular block meets the requirement that the rectangular block can freely move up and down along the rectangular sliding sleeve; the middle part of the rectangular block is provided with a rectangular opening slideway.

Furthermore, the bottom of the sliding pin is provided with an arc-shaped groove, and the upper concave shape of the arc-shaped groove is matched with the convex end of the lifting hook head.

Furthermore, the sliding sleeve is provided with an upper sliding sleeve and a lower sliding sleeve, and the sliding pin penetrates through the upper sliding sleeve and the lower sliding sleeve.

Further, the installation axle rotates to be connected in the bottom opening of type of falling U structure, the lifting hook body links firmly through the lug with the installation axle.

Furthermore, the top of the connecting frame is connected with the crane through a connecting shaft, the connecting shaft is vertically arranged, and one end of the connecting shaft is rotatably connected with the crane or the connecting frame.

Compared with the prior art, the utility model has the beneficial effects.

The utility model not only can reduce the labor intensity of staff, but also can prolong the service life of the locking device and eliminate potential safety hazards.

Drawings

The utility model is further described with reference to the following figures and detailed description. The scope of the utility model is not limited to the following expressions.

Figure 1 is a schematic view of a crane hook block when latched.

Figure 2 is a schematic view of the crane hook latch when open.

Fig. 3 is a partial perspective view of a first crane hook block.

Fig. 4 is a partial perspective view of the second crane hook locking device.

In the figure, 1 is a connecting shaft, 2 is a sliding sleeve, 3 is a sliding pin, 4 is an arc-shaped groove, 5 is a lifting hook head, 6 is an inverted U-shaped structure, 7 is a rotating shaft, 8 is a rotating handle, 9 is a fixed handle, 10 is a mounting shaft, 11 is a crane lifting hook body, 12 is a shifting head, 13 is an arc-shaped contact, 14 is a first arm, 15 is a second arm, 16 is a connecting strip, and 17 is a rectangular opening slideway.

Detailed Description

As shown in fig. 1-4, the specific embodiment: comprises a crane hook body 11 and a connecting frame connected with the hook body 11 through a mounting shaft 10; the connection frame comprises an inverted U-shaped structure 6. Installation axle 10 rotates to be connected in the bottom opening of the type of falling U structure 6, lifting hook body 11 links firmly through the lug with installation axle 10.

A fixed handle 9 is installed on one side of the inverted U-shaped structure 6, and a rotating handle 8 is arranged above the fixed handle 9. The opposite side of the inverted U-shaped structure 6 is fixed with a rectangular sliding sleeve 2, a sliding pin 3 is arranged in the sliding sleeve 2, the sliding pin 3 can freely move up and down relative to the sliding sleeve 2, and a rectangular opening slide way 17 is arranged on the sliding pin 3. The slide pin 3 serves as an anti-trip lever.

The rotating handle 8 penetrates through the cavity of the inverted U-shaped structure 6, and the rotating handle 8 is rotatably connected with the inverted U-shaped structure 6 through a rotating shaft 7, so that the rotating handle 8 forms a seesaw structure; one end of the rotating handle 8 penetrating out of the inverted U-shaped structure 6 is used as a first end to stretch into the rectangular opening slide way 17, and the end part of the first end is in contact with the top of the rectangular opening slide way 17. When the rotating handle 8 rotates around the rotating shaft 7, the first end (also called the shifting block 12) of the rotating handle 8 is always partially or completely positioned in the rectangular opening slide way 17. Can guarantee like this that rotatory handle 8 can drive reciprocating of sliding pin 3 relative sliding sleeve 2 when rotating. Specifically, the sliding sleeve 2 has an upper and a lower sliding sleeves 2, and the sliding pin 3 passes through the upper and the lower sliding sleeves 2. So that the sliding sleeve 2 is more stable in limit relative to the sliding pin 3.

The specific embodiment is as follows: when the end part of the first end is contacted with the top part in the rectangular opening slide way 17, the arc contact 13 can be arranged on the top wall in the rectangular opening slide way 17, the shifting block 12 is contacted with the arc contact 13, and the arc contact 13 is made of wear-resistant materials or rubber materials. The wear of the pusher 12 and the open slide can be prevented. And can be replaced conveniently when worn.

Preferably, the rotating handle 8 adopts a folded arm structure, that is, the folded arm structure includes a first arm 14 and a second arm 15 that are fixedly connected, and a connection point of the first arm 14 and the second arm 15 forms an obtuse angle. When the force is not applied to the rotating handle 8 downwards, the second end of the rotating handle 8 is limited to be in a horizontal state by the inverted U-shaped structure 6, and the bottom of the sliding pin 3 is in contact with the hook head 5.

Specifically, the operation process is as follows: the fixed handle 9 and the second end of the rotating handle 8 have the same structure and are both Contraband-shaped structures; the Contraband-shaped structure of the fixed handle 9 has two ends fixedly connected with one side of the inverted U-shaped structure 6. During operation, the palm is upward, the four fingers are bent, and the fingers sequentially penetrate through the cavities of the fixed handle 9 and the rotating handle 8 and are then tightly held, so that the second end of the rotating handle 8 is close to the fixed handle 9. Corresponding to the downward force applied to the second end of the rotating handle 8. At the moment, the first end of the rotating handle 8 tilts to jack the sliding pin 3, and the sliding pin 3 moves upwards along the sliding sleeve 2; the bottom of the sliding pin 3 is far away from the hook head 5, an opening is formed between the sliding pin and the hook head, and the connecting end of a rope or a workpiece to be hung enters the hook through the opening. After the downward force is released, namely when the grip is released, the seesaw structure is reset under the gravity action of the sliding pin 3. The bottom of the sliding pin 3 falls back to the hook head 5, and the hook head are locked to prevent the connecting end of the rope to be hung or the workpiece from sliding out.

Preferably, the sliding pin 3 is a rectangular block, the shape of the rectangular block is the same as that of the rectangular sliding sleeve 2, and the size of the rectangular block is satisfied that the rectangular block can move up and down along the rectangular sliding sleeve 2; the middle part of the rectangular block is provided with a rectangular opening slide way 17. The rectangular sliding sleeve 2 is fixed on the outer side of the inverted U-shaped structure 6 through the connecting strip 16, the connecting strip 16 is horizontally placed to stride over the U-shaped groove of the inverted U-shaped structure 6, and two sides of the connecting strip 16 are fastened on the inverted U-shaped structure 6 through screws.

Preferably, the bottom of the sliding pin 3 is provided with an arc-shaped groove 4, and the upper concave shape of the arc-shaped groove 4 is matched with the convex end of the hook head 5. So that the two can be better jointed.

Preferably, the top of the connecting frame is connected with a crane rope through a connecting shaft 1, the connecting shaft 1 is vertically arranged, and one end of the connecting shaft 1 is rotatably connected with the crane or the connecting frame. For example, the mounting shaft 10 is rotatably connected with a bearing, and one end of the connecting shaft 1 is freely rotated with a crane or a connecting frame through the bearing; thereby realizing the free rotation of the hook body 11 relative to the crane. Or both ends of the connecting shaft 1 can be rotatably connected.

When hoist lifting hook handling material, will rotate handle 8 and be close to fixed handle 9 through manual gripping, the perk is held to 8 second ends of rotatory handle, drives sliding pin 3 and goes upward along rectangle sliding sleeve 2. After the rope for transferring the materials is placed into the hook opening of the lifting hook, the rotating handle 8 is loosened, and then the sliding pin 3 falls back downwards through the gravity of the sliding pin 3 until the sliding pin 3 is tightly contacted and combined with the lifting hook, so that the locking device takes effect and starts to transfer the materials.

It should be understood that the detailed description of the present invention is only for illustrating the present invention and is not limited by the technical solutions described in the embodiments of the present invention, and those skilled in the art should understand that the present invention can be modified or substituted equally to achieve the same technical effects; and are within the scope of the present invention as long as the requirements of use are met.

Claims

1. A crane hook locking device comprises a crane hook body and a connecting frame connected with the hook body through a mounting shaft; the method is characterized in that: therefore, the connecting frame comprises an inverted U-shaped structure;

a fixed handle is arranged on one side of the inverted U-shaped structure, and a rotating handle is arranged above the fixed handle;

a rectangular sliding sleeve is fixed on the other side of the inverted U-shaped structure, a sliding pin is arranged in the sliding sleeve, the sliding pin can freely move up and down relative to the sliding sleeve, and a rectangular opening slideway is formed in the sliding pin;

2. A crane hook block as claimed in claim 1 wherein: when the rotating handle rotates around the rotating shaft, the first end part or the whole part of the rotating handle is positioned in the rectangular opening slideway.

3. A crane hook block as claimed in claim 1 wherein: the rotating handle adopts a folding arm structure, when force is not applied to the rotating handle downwards, the second end of the rotating handle is limited to be in a horizontal state by an inverted U-shaped structure, and the bottom of the sliding pin is contacted with the lifting hook head.

4. A crane hook block as claimed in claim 1 wherein: the sliding pin is a rectangular block, the shape of the rectangular block is the same as that of the rectangular sliding sleeve, and the size of the rectangular block meets the requirement that the rectangular block can freely move up and down relative to the rectangular sliding sleeve; the middle part of the rectangular block is provided with a rectangular opening slideway.

5. A crane hook block as claimed in claim 1 wherein: the bottom of the sliding pin is provided with an arc-shaped groove, and the upper concave shape of the arc-shaped groove is matched with the convex end of the lifting hook head.

6. A crane hook block as claimed in claim 1 wherein: the sliding sleeve is provided with an upper sliding sleeve and a lower sliding sleeve, and the sliding pin penetrates through the upper sliding sleeve and the lower sliding sleeve.

7. A crane hook block as claimed in claim 1 wherein: the installation axle rotates to be connected in the bottom opening of the type of falling U structure, the lifting hook body links firmly through the lug with the installation axle.

8. A crane hook block as claimed in claim 1 wherein: the top of the connecting frame is connected with the crane through a connecting shaft, the connecting shaft is vertically arranged, and one end of the connecting shaft is rotatably connected with the crane or the connecting frame.