CN219408979U

CN219408979U - Crane mechanical safety height limiting device

Info

Publication number: CN219408979U
Application number: CN202320273663.5U
Authority: CN
Inventors: 钱旭峰; 王瑶; 张旭飞; 虞波; 赵建军
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-02-21
Filing date: 2023-02-21
Publication date: 2023-07-25
Anticipated expiration: 2033-02-21

Abstract

The utility model discloses a crane mechanical safety height limiting device, and particularly relates to the technical field of hoisting machinery. According to the utility model, the limiting block is detachably connected with the connecting block and the buffering rubber pad, so that the situation that the structures such as the connecting block and the limiting block are completely replaced is avoided, the replacing process of the connecting block and the buffering rubber pad is simpler and more convenient, the replacing speed is higher, the replacing efficiency is higher, and the waste of resources is reduced.

Description

Crane mechanical safety height limiting device

Technical Field

The utility model relates to the technical field of hoisting machinery, in particular to a crane mechanical safety height limiting device.

Background

The hoisting machine is an engineering machine capable of carrying out operations such as material hoisting, transportation, loading and unloading and the like, is widely applied to hoisting operations and hoisting operations under working conditions such as construction sites, ports and docks, oil fields, railways, warehouses, wind power and the like, and becomes an important tool for reducing labor intensity and improving production efficiency. The lifting structure of the lifting machinery is one of important parts, and in order to prevent the situation that the lifting structure collides with the top in the process of lifting a heavy object, the lifting structure needs to be subjected to high-limit buffering.

At present, when the crane mechanical safety height limiting device is in actual use, most of limiting buffer structures of the crane mechanical safety height limiting device are of an integral structure, such as a fixed seat, a limiting block, a spring and the like in the lifting hook safety height limiting device of a crane mechanical with a patent number of CN218403464U are all inconvenient to detach, and when the limiting block is impacted for a long time to be damaged, the whole height limiting structure needs to be detached and replaced together, so that the replacement process is troublesome, the replacement efficiency is low, and resources are wasted.

Therefore, it is necessary to provide a crane safety height limiting device to solve the above-mentioned problems.

Disclosure of Invention

The utility model aims to provide a safe height limiting device for a crane, which can avoid the situation that the structures such as a connecting block, a limiting block and the like are completely replaced by detachably connecting the limiting block with the connecting block and the buffering rubber pad, has the advantages of simpler and more convenient replacement process of the connecting block and the buffering rubber pad, higher replacement speed and higher replacement efficiency, and reduces the waste of resources so as to solve the defects in the technology.

In order to achieve the above object, the present utility model provides the following technical solutions: the utility model provides a hoist mechanical safety height stop device, includes rolling machine and fixed block of establishing in its bottom, the fixed block bottom is equipped with hoist mechanism, the fixed block bottom is equipped with the stopper, the stopper bottom is equipped with the connecting block, connecting block bottom mounting is equipped with the buffering rubber pad, stopper bottom mounting is equipped with the grafting piece, the jack groove has been seted up on the connecting block top, the grafting piece is established at the jack groove inside, first movable cavity has been seted up to the inside movable limiting plate that has first movable cavity, the inside movable limiting plate that is equipped with two symmetries of movable limiting plate outside is fixed to be equipped with the movable gag lever post, the spacing groove has all been seted up to the connecting block front and back end, movable gag lever post one end extends into inside the spacing groove, two fixed reset spring that is equipped with between the movable limiting plate.

Preferably, the hoisting mechanism comprises a movable frame arranged at the bottom of the connecting block, pulleys are arranged inside the movable frame, the pulleys are rotationally connected with the front end and the rear end of the interior of the winding machine through rotating shafts, a lifting hook is fixedly arranged at the top end of the movable frame, and a steel wire rope is wound at the outer end of the pulleys so as to hoist cargoes conveniently.

Preferably, the first movable cavity is internally and fixedly provided with two fixed guide rods, two ends of each fixed guide rod respectively penetrate through two movable limiting plates, and the two fixed guide rods are respectively arranged on two sides of the reset spring, so that the movable limiting plates are conveniently guided and limited.

Preferably, two communication holes are formed in the top end of the fixing block, and two ends of the steel wire rope penetrate through the two communication holes respectively, so that the steel wire rope can pass through conveniently.

Preferably, the second movable cavity is arranged at the bottom end of the fixed block, the second movable cavity is arranged between the two communication holes, and the top end of the limiting block extends into the second movable cavity, so that the limiting block can move up and down conveniently.

Preferably, the limiting block top end is integrally connected with a limiting folded edge, the limiting folded edge is arranged inside the second movable cavity, the limiting block is convenient to limit, and the top end of the limiting block is prevented from being separated from the inside of the second movable cavity.

Preferably, the top end of the limiting block is fixedly provided with two buffer springs, and the top ends of the buffer springs are fixedly connected with the top end inside the second movable cavity, so that impact force on the limiting block is buffered conveniently.

In the technical scheme, the utility model has the technical effects and advantages that:

1. the limiting block is detachably connected with the connecting block and the buffering rubber pad, so that the situation that the structures such as the connecting block and the limiting block are completely replaced is avoided, the replacing process of the connecting block and the buffering rubber pad is simple and convenient, the replacing speed is high, the replacing efficiency is high, and the waste of resources is reduced;

2. the hoisting mechanism is highly limited by the buffer rubber pad, the connecting block, the limiting block and the buffer spring, so that the hoisting mechanism can be prevented from being topped, and the limiting effect is good.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.

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

FIG. 2 is a schematic view of a solid cross-sectional structure of a fixing block according to the present utility model;

FIG. 3 is a schematic view of a three-dimensional cross-sectional structure of a limiting block and a connecting block of the utility model;

fig. 4 is a schematic perspective sectional structure of the plug-in connector of the present utility model.

Reference numerals illustrate:

1. a winding machine; 2. a fixed block; 3. a movable frame; 4. a pulley; 5. a lifting hook; 6. a wire rope; 7. a limiting block; 8. a connecting block; 9. a buffer rubber pad; 10. a plug block; 11. a plug-in groove; 12. a first movable cavity; 13. a movable limiting plate; 14. a movable limit rod; 15. a limit groove; 16. a return spring; 17. fixing a guide rod; 18. a communication hole; 19. a second movable cavity; 20. limit flanging; 21. and a buffer spring.

Detailed Description

In order to make the technical scheme of the present utility model better understood by those skilled in the art, the present utility model will be further described in detail with reference to the accompanying drawings.

The utility model provides a crane mechanical safety height limiting device as shown in figures 1, 3 and 4, which comprises a winding machine 1 and a fixed block 2 fixedly arranged at the bottom end of the winding machine, wherein a hoisting mechanism is arranged at the bottom of the fixed block 2, a limiting block 7 is arranged at the bottom end of the fixed block 2, a connecting block 8 is arranged at the bottom end of the limiting block 7, a buffer rubber pad 9 is fixedly arranged at the bottom end of the connecting block 8, an inserting block 10 is fixedly arranged at the bottom end of the limiting block 7, an inserting groove 11 is formed at the top end of the connecting block 8, the inserting block 10 is arranged in the inserting groove 11, a first movable cavity 12 is formed in the inserting block 10, two symmetrical movable limiting plates 13 are arranged in the first movable cavity 12, movable limiting rods 14 are fixedly arranged at the outer sides of the movable limiting plates 13, limiting grooves 15 are formed at the front end and the rear end of the connecting block 8, one end of each movable limiting rod 14 extends into the limiting grooves 15, a reset spring 16 is fixedly arranged between the two movable limiting plates 13, two fixed guide rods 17 are fixedly arranged in the first movable cavity 12, two ends of each fixed guide rod 17 respectively penetrate through the two movable limiting plates 13, and the two fixed guide rods 17 are respectively arranged at two sides of the reset spring 16.

The hoisting mechanism comprises a movable frame 3 arranged at the bottom of a connecting block 8, a pulley 4 is arranged inside the movable frame 3, the pulley 4 is rotationally connected with the front end and the rear end of the interior of the winding machine 1 through a rotating shaft, a lifting hook 5 is fixedly arranged at the top end of the movable frame 3, and a steel wire rope 6 is wound at the outer end of the pulley 4.

Two communication holes 18 are formed in the top end of the fixed block 2, and two ends of the steel wire rope 6 respectively penetrate through the two communication holes 18.

The movable limiting rod 14 is pushed out from the inside of the limiting groove 15 by using an external tool, the movable limiting rod 14 drives the movable limiting plate 13 to compress the reset spring 16, the connecting block 8 and the buffer rubber pad 9 are taken down from the bottom end of the limiting block 7, then the new connecting block 8 and the new buffer rubber pad 9 are placed at the bottom end of the limiting block 7, the inserting block 10 is clamped into the inserting groove 11 at the top end of the new connecting block 8, when the movable limiting rod 14 moves to the inner side of the limiting groove 15, the movable limiting plate 13 drives the movable limiting rod 14 to be inserted into the inside of the limiting groove 15 under the elastic force of the reset spring 16, and thus the replacement of the connecting block 8 and the buffer rubber pad 9 is completed.

The utility model provides a crane mechanical safety height limiting device as shown in figures 1 and 2, wherein a second movable cavity 19 is formed at the bottom end of a fixed block 2, the second movable cavity 19 is arranged between two communication holes 18, the top end of a limiting block 7 extends into the second movable cavity 19, a limiting folded edge 20 is integrally connected to the top end of the limiting block 7, the limiting folded edge 20 is arranged in the second movable cavity 19, two buffer springs 21 are fixedly arranged at the top end of the limiting block 7, and the top ends of the buffer springs 21 are fixedly connected with the top ends of the inside of the second movable cavity 19.

When hoist mechanism upward movement, rolling machine 1 can carry out the rolling to wire rope 6 one end, this rolling machine 1 is current equipment, its effect is mainly to wire rope 6 receive and release automatically, do not repeated here, movable frame 3 can be to following the rolling upward movement of wire rope 6, when the cushion rubber pad 9 bottom is contacted on movable frame 3 top, control rolling machine 1 stops the rolling to wire rope 6, cushion rubber pad 9 can give connecting block 8 and stopper 7 with impulse, stopper 7 can give two buffer spring 21 with impulse, buffer spring 21 can carry out buffering unloading to it, just so can carry out high spacing to movable frame 3, carry out high spacing to hoist mechanism through cushion rubber pad 9, connecting block 8, stopper 7 and buffer spring 21, can prevent that hoist mechanism from punching the top, spacing effect is better.

While certain exemplary embodiments of the present utility model have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the utility model, which is defined by the appended claims.

Claims

1. The utility model provides a hoist mechanical safety height stop device, includes rolling machine (1) and fixed block (2) of establishing in its bottom, its characterized in that: fixed block (2) bottom is equipped with hoist mechanism, fixed block (2) bottom is equipped with stopper (7), stopper (7) bottom is equipped with connecting block (8), connecting block (8) bottom mounting is equipped with buffering rubber pad (9), stopper (7) bottom mounting is equipped with spliced block (10), spliced groove (11) have been seted up on connecting block (8) top, spliced block (10) are established inside spliced groove (11), first movable cavity (12) have been seted up to spliced block (10) inside, first movable cavity (12) inside is equipped with movable limiting plate (13) of two symmetries, movable limiting plate (13) outside is fixed and is equipped with movable gag lever post (14), spacing groove (15) have all been seted up to connecting block (8) front and back end, movable gag lever post (14) one end is prolonged inside spacing groove (15), two be equipped with reset spring (16) between movable limiting plate (13) fixedly.

2. The crane mechanical safety height limiting device according to claim 1, wherein: the hoisting mechanism comprises a movable frame (3) arranged at the bottom of a connecting block (8), a pulley (4) is arranged inside the movable frame (3), the pulley (4) is rotatably connected with the front end and the rear end of the interior of the winding machine (1) through a rotating shaft, a lifting hook (5) is fixedly arranged at the top end of the movable frame (3), and a steel wire rope (6) is wound at the outer end of the pulley (4).

3. The crane mechanical safety height limiting device according to claim 1, wherein: two fixed guide rods (17) are fixedly arranged in the first movable cavity (12), two ends of each fixed guide rod (17) respectively penetrate through two movable limiting plates (13), and the two fixed guide rods (17) are respectively arranged on two sides of the reset spring (16).

4. The crane mechanical safety height limiting device according to claim 2, wherein: two communication holes (18) are formed in the top end of the fixed block (2), and two ends of the steel wire rope (6) respectively penetrate through the two communication holes (18).

5. The crane mechanical safety height limiting device according to claim 4, wherein: the bottom end of the fixed block (2) is provided with a second movable cavity (19), the second movable cavity (19) is arranged between the two communication holes (18), and the top end of the limiting block (7) extends into the second movable cavity (19).

6. The crane mechanical safety height limiting device according to claim 5, wherein: the top end of the limiting block (7) is integrally connected with a limiting folded edge (20), and the limiting folded edge (20) is arranged inside the second movable cavity (19).

7. The crane mechanical safety height limiting device according to claim 5, wherein: two buffer springs (21) are fixedly arranged at the top end of the limiting block (7), and the top ends of the buffer springs (21) are fixedly connected with the top end inside the second movable cavity (19).