CN216190384U

CN216190384U - Crane hook with anti-disengaging structure

Info

Publication number: CN216190384U
Application number: CN202122347531.6U
Authority: CN
Inventors: 滕万里; 夏崇汉; 李享
Original assignee: LOADWELL CRANES (SHANGHAI) CO Ltd
Current assignee: LOADWELL CRANES (SHANGHAI) CO Ltd
Priority date: 2021-09-27
Filing date: 2021-09-27
Publication date: 2022-04-05
Anticipated expiration: 2031-09-27

Abstract

The utility model discloses a crane hook with an anti-falling structure, and relates to the technical field of crane hooks. The device comprises a hanging plate, a connecting seat and a lifting hook, wherein the bottom of the hanging plate is fixedly connected with the connecting seat, the bottom of the connecting seat is rotatably connected with the lifting hook, the top of one end, away from the connecting seat, of the lifting hook is provided with a limiting channel, a sealing plate is arranged above the lifting hook, the top of the sealing plate is fixedly connected with a rotating shaft, the top of the rotating shaft is rotatably connected with the connecting seat, one end of the sealing plate is provided with a lug which is in sliding fit with the limiting channel, and the bottom of the lug is provided with a limiting clamping groove; the inside arc cavity of having opened of lifting hook, open the spout that has and arc cavity intercommunication in the spacing channel, sliding fit has a stopper in the spout, stopper top and spacing draw-in groove joint cooperation. The utility model not only realizes the purpose of plugging the opening of the lifting hook, so that the lifting hook can not have the risk of unhooking when lifting heavy objects, but also does not occupy the space inside the lifting hook, thereby eliminating the limitation on the lifted heavy objects.

Description

Crane hook with anti-disengaging structure

Technical Field

The utility model belongs to the technical field of crane lifting hooks, and particularly relates to a crane lifting hook with an anti-falling structure.

Background

The lifting hook is the most common lifting appliance in hoisting machinery, and has a single hook and a double hook. When using the lifting hook to lift by crane the heavy object, the heavy object often can appear and drop, cause great accident, at present, what adopt more sets up an elastic buckle at the tip of the shank of lifting hook, avoid the heavy object that hangs to drop, however, this kind of mode at first needs great elasticity to guarantee that the heavy object that hangs can not drop, in addition, this kind of structure causes the space in the shank to reduce, the heavy object that hangs receives the limitation, moreover, need manually press elastic buckle to make it open, just can take out the heavy object, very inconvenient.

Through the retrieval, current application number discloses a hoist lifting hook blocking device in CN202020565865.3, including colluding the body, the arc clamp plate, transmission connecting rod and depression bar, collude the inside of the body and seted up the clearance, the equal fixedly connected with baffle in middle part both sides of arc clamp plate, the one end fixed connection spacing head of arc clamp plate, the other end rotation of arc clamp plate is connected with the connector, the one end of transmission connecting rod is passed through the connector and is rotated the one end of connecting at the arc clamp plate, the other end rotation of transmission connecting rod is connected the one end at the depression bar, the equal fixedly connected with rotation seat in transmission connecting rod and depression bar upper end, the inside rotation in clearance is connected with the pivot. This crane hook blocking device sets up through the cooperation of arc clamp plate, connector, transmission connecting rod and depression bar, and the pushing down of arc clamp plate receives the extrusion of heavy object self gravity, and the lifting of arc clamp plate receives the control of spring force, has reached the purpose that makes the depression bar automatic open and shut. In use, the purpose of automatic opening and closing is achieved through the structure, but the pressing plate which plays a role of the unhooking prevention always rotates in the hook body, a certain space in the hook body is occupied, and the problem that the suspended heavy object is limited due to the fact that the space in the hook body is reduced is still not solved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a crane hook with an anti-disengaging structure, which aims to solve the problem that in the prior art, although the purpose of automatic opening and closing is realized, a pressure plate for preventing the hook from disengaging always rotates in a hook body, occupies a certain space in the hook body, and still does not solve the problem that the suspended heavy object is limited due to the reduction of the space in the hook body.

In order to solve the technical problems, the utility model is realized by the following technical scheme:

the utility model relates to a crane hook with an anti-falling structure, which comprises a hanging plate, a connecting seat and a hook, wherein the bottom of the hanging plate is fixedly connected with the connecting seat, the bottom of the connecting seat is rotatably connected with the hook, the top of one end, away from the connecting seat, of the hook is provided with a limiting channel, a sealing plate is arranged above the hook, the top of the sealing plate is fixedly connected with a rotating shaft, the top of the rotating shaft is rotatably connected with the connecting seat, one end of the sealing plate is provided with a lug which is in sliding fit with the limiting channel, and the bottom of the lug is provided with a limiting clamping groove; the inside arc cavity of having opened of lifting hook, it has the spout with the arc cavity intercommunication to open in the spacing channel, sliding fit has a stopper in the spout, stopper side fixedly connected with runs through the driving lever of spout, lifting hook side open have with driving lever sliding fit and with the guide slot of spout intercommunication, stopper top and spacing draw-in groove joint cooperation, be equipped with the spring in the arc cavity, spring one end and arc cavity inner wall fixed connection, the spring other end and stopper fixed connection.

Furthermore, the top of the limiting block is of a wedge-shaped structure.

Furthermore, two opposite inner walls of the limiting channel are both of arc-shaped structures.

Furthermore, the two sides of the convex block are both provided with anti-skid protrusions which are abutted against the inner wall of the limiting channel.

Further, the sealing plate comprises an arc-shaped part and a strip-shaped part, and one end of the strip-shaped part is in contact with the side face of the lifting hook.

Furthermore, the top of the hanging plate is symmetrically provided with through grooves, pulleys are rotatably connected in the through grooves, and hanging ropes are wound on the outer side faces of the pulleys.

The utility model has the following beneficial effects:

1. according to the utility model, through the matching of the rotating shaft, the sealing plate, the convex block, the limiting clamping groove, the lifting hook, the limiting channel chute, the arc-shaped cavity, the limiting block and the spring, the purpose of plugging the opening of the lifting hook is realized, so that the lifting hook can not have the unhooking danger when lifting a heavy object, and does not occupy the space inside the hook body, thereby eliminating the limitation on the lifted heavy object.

2. According to the utility model, the anti-skid protrusions are arranged on the two sides of the bump, so that the friction force between the anti-skid protrusions and the inner wall of the limiting channel is increased, the position of the sealing plate is further limited, and the opening of the lifting hook is effectively blocked.

Of course, it is not necessary for any product in which the utility model is practiced to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural view of a crane hook with an anti-dropping structure according to the present invention;

FIG. 2 is an enlarged view taken at A in FIG. 1;

FIG. 3 is a schematic view of the structure of FIG. 1 from another perspective;

FIG. 4 is a schematic view of the structure of the combination of the shaft, the sealing plate and the bump;

FIG. 5 is a partial cross-sectional view of the hanger;

fig. 6 is a schematic structural diagram of a combination of the hook, the limiting block, the shift lever and the spring.

In the drawings, the components represented by the respective reference numerals are listed below:

1-hanging plate, 101-through groove, 2-connecting seat, 3-hanging hook, 301-limiting groove channel, 302-arc cavity, 303-sliding groove, 304-guide groove, 4-sealing plate, 401-lug, 402-limiting clamping groove, 403-anti-skidding bulge, 404-arc part, 405-strip part, 5-rotating shaft, 6-limiting block, 601-deflector rod, 7-spring, 8-pulley and 9-hanging rope.

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. 1-6, the utility model is a crane hook with an anti-drop structure, comprising a hanging plate 1, a connecting seat 2 and a hook 3, wherein the top of the hanging plate 1 is symmetrically provided with a through groove 101, a pulley 8 is rotatably connected in the through groove 101, the outer side surface of the pulley 8 is wound with a lifting rope 9, the bottom of the hanging plate 1 is fixedly connected with the connecting seat 2, the bottom of the connecting seat 2 is rotatably connected with the hook 3, the lifting hook 3 is driven to lift through the extension and the shortening of the lifting rope 1, the top of one end, away from the connecting seat 2, of the lifting hook 3 is provided with a limiting channel 301, a sealing plate 4 is arranged above the lifting hook 3, the sealing plate 4 comprises an arc-shaped portion 404 and a strip-shaped portion 405, one end of the strip-shaped portion 405 is in contact with the side face of the lifting hook 3, the top of the sealing plate 4 is fixedly connected with a rotating shaft 5, the top of the rotating shaft 5 is rotatably connected with the connecting seat 2, one end of the sealing plate 4 is provided with a convex block 401 in sliding fit with the limiting channel 301, and the bottom of the convex block 401 is provided with a limiting clamping groove 402; the inner part of the lifting hook 3 passes through the arc-shaped cavity 302, a sliding groove 303 communicated with the arc-shaped cavity 302 is formed in a limiting groove channel 301, a limiting block 6 is in sliding fit in the sliding groove 303, a shifting rod 601 penetrating through the sliding groove 303 is fixedly connected to one side face of the limiting block 6, a guide groove 304 which is in sliding fit with the shifting rod 601 and communicated with the sliding groove 303 is formed in one side face of the lifting hook 3, the top of the limiting block 6 is in clamping fit with a limiting clamping groove 402, the top of the limiting block 6 is of a wedge-shaped structure, a spring 7 is arranged in the arc-shaped cavity 302, one end of the spring 7 is fixedly connected with the inner wall of the arc-shaped cavity 302, and the other end of the spring 7 is fixedly connected with the limiting block 6; rotating pivot 5 and driving sealing plate 4 and rotating for lug 401 slides in spacing channel 301, pushes down driving lever 601 after that, then makes stopper 6 aim at spacing draw-in groove 402, through spring 7 with stopper 6 ejecting spout 303, makes stopper 6 top and spacing draw-in groove 402 joint cooperation, thereby restricts the position of sealing plate 4, and then has realized the purpose to the shutoff of 3 opening parts of lifting hook.

Wherein, two opposite inner walls of the limit channel 301 are both designed into arc structures, so that when the sealing plate 4 is rotated, the convex block 401 is convenient to slide into the limit channel 301.

Wherein, lug 401 both sides all are equipped with the non-skid protrusions 403, and non-skid protrusions 403 and spacing channel 301 inner wall butt for the lug 401 increases with the frictional force of spacing channel 301 inner wall, further restricts the position of sealing plate 4, and the effectual opening part with lifting hook 3 blocks.

One specific application of this embodiment is: when in use, the lifting rope 9 is firstly released to lead the lifting hook 3 to reach a place suitable for hanging the goods, then the lifting hook 3 can smoothly hang the goods, after the goods are hung on the lifting hook 3, the sealing plate 4 is driven to rotate by rotating the rotating shaft 5, so that the convex block 401 slides into the limiting channel 301, then the limiting block 6 is aligned with the limiting clamping groove 402, the limiting block 6 is ejected out of the sliding groove 303 through the spring 7, the top of the limiting block 6 is in clamping fit with the limiting clamping groove 402, meanwhile, the anti-skid protrusions 403 are abutted against the inner wall of the limit channel 301, so that the friction force between the protrusions 401 and the inner wall of the limit channel 301 is increased, the position of the sealing plate 4 is limited, and then realized the purpose to the shutoff of 3 openings of lifting hook for when lifting hook 3 lifted by crane the heavy object, the danger of unhook can not appear, does not occupy the inside space of lifting hook 3 moreover, has eliminated the limitation that the heavy object that hangs received.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the utility model disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the utility model to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best utilize the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a crane hook with anti-disengaging structure, includes hanger plate (1), connecting seat (2) and lifting hook (3), hanger plate (1) bottom and connecting seat (2) fixed connection, connecting seat (2) bottom is rotated with lifting hook (3) and is connected its characterized in that:

a limiting channel (301) is formed in the top of one end, away from the connecting seat (2), of the lifting hook (3), a sealing plate (4) is arranged above the lifting hook (3), a rotating shaft (5) is fixedly connected to the top of the sealing plate (4), the top of the rotating shaft (5) is rotatably connected with the connecting seat (2), a convex block (401) in sliding fit with the limiting channel (301) is arranged at one end of the sealing plate (4), and a limiting clamping groove (402) is formed in the bottom of the convex block (401);

arc cavity (302) have been opened to lifting hook (3) inside, open spout (303) that have with arc cavity (302) intercommunication in spacing channel (301), sliding fit has stopper (6) in spout (303), stopper (6) side fixedly connected with runs through driving lever (601) of spout (303), lifting hook (3) side is opened have with driving lever (601) sliding fit and with guide slot (304) of spout (303) intercommunication, stopper (6) top and spacing draw-in groove (402) joint cooperation, be equipped with spring (7) in arc cavity (302), spring (7) one end and arc cavity (302) inner wall fixed connection, spring (7) other end and stopper (6) fixed connection.

2. The crane hook with the anti-dropping structure is characterized in that the top of the limiting block (6) is in a wedge-shaped structure.

3. The crane hook with the anti-dropping structure as claimed in claim 1, wherein the two opposite inner walls of the limit channel (301) are provided with arc-shaped structures.

4. The crane hook with the anti-dropping structure as claimed in claim 1, wherein the protrusions (401) are provided with anti-skid protrusions (403) on both sides, and the anti-skid protrusions (403) abut against the inner wall of the limiting channel (301).

5. The crane hook with the anti-dropping structure as claimed in claim 1, wherein the sealing plate (4) comprises an arc-shaped part (404) and a strip-shaped part (405), and one end of the strip-shaped part (405) is in contact with the side surface of the hook (3).

6. The crane hook with the anti-dropping structure is characterized in that a through groove (101) is symmetrically formed in the top of the hanging plate (1), a pulley (8) is rotatably connected in the through groove (101), and a lifting rope (9) is wound on the outer side surface of the pulley (8).