CN219174030U

CN219174030U - Hook for crane

Info

Publication number: CN219174030U
Application number: CN202223196626.3U
Authority: CN
Inventors: 杨松
Original assignee: Cospert Intelligent Equipment Suzhou Co ltd
Current assignee: Cospert Intelligent Equipment Suzhou Co ltd
Priority date: 2022-11-30
Filing date: 2022-11-30
Publication date: 2023-06-13
Anticipated expiration: 2032-11-30

Abstract

The utility model discloses a lifting hook for a crane, which comprises a mounting seat, wherein a hook body is mounted at the bottom end of the mounting seat, a rotating rod is rotatably connected in the hook body, protection blocks are fixedly connected at two ends of the rotating rod, a ratchet wheel is fixedly connected on the outer side of the rotating rod, the mounting block is fixedly connected on the outer side of the hook body, a threaded rod is connected on the outer side of the mounting block in a threaded manner, a knob is fixedly connected at one end of the threaded rod, a connecting block is rotatably connected at the other end of the threaded rod, a ratchet is slidingly connected in the connecting block, a fixing block is fixedly connected on the outer side of the ratchet wheel, a first spring is fixedly connected on the outer side of the fixing block, and the ratchet wheel is not connected with the ratchet wheel in a clamping manner, so that the protection block can not reverse the ratchet wheel, after limiting blocking of an outlet of the hook body is guaranteed, the stability of the protection block is improved, the anti-falling effect of equipment is guaranteed, and safety during lifting operation is guaranteed.

Description

Hook for crane

Technical Field

The utility model belongs to the technical field of cranes, and particularly relates to a lifting hook for a crane.

Background

The crane is mechanical equipment capable of carrying heavy objects, the lifting hook is not separated from the crane, the heavy objects to be carried are fixed through the steel wire rope, then the steel wire rope is hung on the lifting hook, and the crane is started to carry the heavy objects.

In order to avoid the wire rope from the surface drop of lifting hook to need use anti-drop mechanism to spacing at the inside of lifting hook to wire rope, but present lifting hook anti-drop mechanism only carries out spacingly to wire rope through the design of spring and dog, and the anti-drop effect of this method is not good, has reduced the security of hoist lifting hook when carrying out hoist and mount work, on the other hand, when carrying out hoist and mount work, wire rope can also take place to slide at the surface of lifting hook, thereby leads to the heavy object of wire rope below to take place the swing, seriously influences the security at the hoist and mount during work.

The foregoing is not necessarily a prior art, and falls within the technical scope of the inventors.

Disclosure of Invention

In order to solve the problems, the utility model aims to provide the lifting hook for the crane, which has the advantages of good anti-falling effect and limiting a steel wire rope.

In order to achieve the above purpose, the utility model provides a lifting hook for a crane, which comprises a mounting seat, wherein a hook body is arranged at the bottom end of the mounting seat, a rotating rod is rotatably connected in the hook body, protection blocks are fixedly connected at the two ends of the rotating rod, a ratchet wheel is fixedly connected on the outer side of the rotating rod, the mounting block is fixedly connected on the outer side of the hook body, a threaded rod is connected on the outer side of the mounting block in a threaded manner, a knob is fixedly connected on one end of the threaded rod, a connecting block is rotatably connected on the other end of the threaded rod, a ratchet is slidingly connected in the connecting block, a fixing block is fixedly connected on the outer side of the ratchet, a first spring is fixedly connected on the outer side of the fixing block, and a limiting component is arranged in the hook body.

In one example, the limiting component comprises a sliding cavity, the inner surface of the sliding cavity is fixedly connected with a sliding rod, one end of the sliding rod is slidably connected with a limiting block, one end of the limiting block is fixedly connected with a second spring, and one end of the second spring is fixedly connected with the inner surface of the sliding cavity.

In an example, the draw-in groove has been seted up in the outside of stopper, the fixed surface of draw-in groove has the non slipping spur, the shape of draw-in groove sets up to the arc, can make the draw-in groove spacing wire rope through the design of draw-in groove to avoid wire rope to take place to slide at the surface of the hook body, through the design of non slipping spur, further improved wire rope and the inside frictional force of draw-in groove, thereby further improved wire rope anti-skidding effect, curved design can guarantee the laminating degree to wire rope, thereby guaranteed the limiting effect of draw-in groove to wire rope.

In an example, the outside corner of stopper sets up to the fillet, when wire rope stops in the top of stopper, when seting up and carry out the hoist and mount during operation, can pull wire rope under the weight of heavy object to make wire rope produce pressure to the stopper, under the design of fillet, can make the stopper slide to the inside of smooth chamber, and make the stopper extrude the second spring, when wire rope slides to the surface of draw-in groove, under the elasticity of second spring this moment, drive the stopper and extrude wire rope, thereby carry out the limit to wire rope, thereby avoid wire rope at the surface slip of coupler body, guarantee the security at the hoist and mount during operation.

In one example, the spacing assemblies are provided in two groups. The design of the two groups of limiting components can improve the limiting effect on the steel wire rope.

In one example, the ratchet is clamped with the ratchet, and the ratchet is clamped with the ratchet, so that the ratchet can only rotate in one direction and cannot rotate reversely due to the characteristics of the ratchet and the ratchet.

The lifting hook for the crane provided by the utility model has the following beneficial effects:

1. when hanging wire rope in the inside of the hook body, through the dial-down protection piece to make the dwang rotate, thereby make the dwang drive the ratchet rotate, the ratchet extrudees the ratchet in the pivoted, thereby make the ratchet backward slip, and extrude first spring, when the ratchet does not extrude the ratchet, under the elasticity of first spring, make ratchet and ratchet joint once more, because ratchet and ratchet joint, thereby can't make the ratchet reverse, thereby guaranteed that the protection piece carries out spacing back with the export of the hook body, the stability of protection piece, thereby improved the anti-drop effect of equipment, guaranteed the security at the hoist and mount during operation.

2. Carry out spacingly to wire rope through the draw-in groove to avoid wire rope to take place to slide at the surface of the hook body, through the design of antiskid block, further improved wire rope and the inside frictional force of draw-in groove, thereby further improve wire rope antiskid effect, curved design can guarantee the laminating degree to wire rope, thereby guaranteed the spacing effect of draw-in groove to wire rope, through multiunit stop gear's design, thereby guaranteed the stability of wire rope after the hook body is inside, avoided wire rope to slide at the surface of the hook body and lead to the condition of heavy object to take place the wobbling to take place, thereby guaranteed the security of equipment at the time of carrying out hoisting work again, wholly improved the practicality of equipment.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:

fig. 1 is a schematic view of the whole front structure of a lifting hook for a crane according to the present utility model.

Fig. 2 is a schematic diagram of the overall side structure of a crane hook according to the present utility model.

Fig. 3 is a schematic view showing a part of a hook for a crane according to the present utility model.

Fig. 4 is a schematic view of two partial structures of a hook for a crane according to the present utility model.

Fig. 5 is a schematic diagram of a ratchet structure of a hook for a crane according to the present utility model.

Fig. 6 is an enlarged schematic view of a portion a of a hook for a crane according to the present utility model.

In the figure: 1. a mounting base; 2. a hook body; 3. a rotating lever; 4. a protection block; 5. a ratchet wheel; 6. a mounting block; 7. a threaded rod; 8. a knob; 9. a connecting block; 10. a ratchet; 11. a fixed block; 12. a first spring; 13. a limit component; 14. a sliding cavity; 15. a slide bar; 16. a limiting block; 17. a second spring; 18. a clamping groove; 19. an anti-skid block.

Detailed Description

In order to more clearly illustrate the general inventive concept, a detailed description is given below by way of example with reference to the accompanying drawings.

In the description of the present utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the device can be mechanically connected, electrically connected and communicated; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. In the description of the present specification, the description with reference to the terms "one aspect," "some aspects," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the aspect or example is included in at least one aspect or example of the present utility model. In this specification, the schematic representations of the above terms are not necessarily for the same scheme or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more aspects or examples.

As shown in fig. 1 to 6, an embodiment of the utility model provides a lifting hook for a crane, which comprises a mounting seat 1, wherein a hook body 2 is mounted at the bottom end of the mounting seat 1, a rotating rod 3 is rotatably connected inside the hook body 2, protection blocks 4 are fixedly connected at two ends of the rotating rod 3, a ratchet wheel 5 is fixedly connected at the outer side of the rotating rod 3, a mounting block 6 is fixedly connected at the outer side of the hook body 2, a threaded rod 7 is connected at the outer side of the mounting block 6 in a threaded manner, a knob 8 is fixedly connected at one end of the threaded rod 7, a connecting block 9 is rotatably connected at the other end of the threaded rod 7, a ratchet 10 is slidably connected inside the connecting block 9, a fixing block 11 is fixedly connected at the outer side of the ratchet 10, a first spring 12 is fixedly connected at the other end of the first spring 12 and the connecting block 9, and a limiting component 13 is arranged inside the hook body 2.

Specifically, the spacing assemblies 13 are provided in two groups. The two groups of limiting assemblies 13 are designed, so that the limiting effect on the steel wire rope can be improved.

Specifically, the ratchet 10 is engaged with the ratchet 5, and the ratchet 5 is engaged with the ratchet 5, whereby the ratchet 5 can rotate only in one direction due to the characteristics of the ratchet 5 and the ratchet 10, and the ratchet cannot be reversed.

Working principle: when the wire rope hangs in the inside of the hook body 2, through the dial-down protection block 4, thereby make dwang 3 rotate, thereby make dwang 3 drive ratchet 5 rotate, ratchet 5 extrudees ratchet 10 in the pivoted, thereby make ratchet 10 backward slip, and extrude first spring 12, when ratchet 5 does not extrude ratchet 10, under the elasticity of first spring 12, make ratchet 10 and ratchet 5 joint once more, because ratchet 10 and ratchet 5 joint, thereby can't make ratchet 5 reverse, thereby guaranteed protection block 4 carry out spacing back with the export of hook body 2, the stability of protection block 4, thereby the anti-drop effect of equipment has been improved, the security when hoist and mount the during operation has been guaranteed, when needs to take off wire rope, through rotating knob 8, knob 8 drives connecting block 9 through threaded rod 7 and slides, and make ratchet 10 keep away from ratchet 5, thereby make ratchet 5 can reverse, thereby take out wire rope.

As shown in fig. 1 to 6, on the basis of the first embodiment, the limiting component 13 includes a sliding cavity 14, the inner surface of the sliding cavity 14 is fixedly connected with a sliding rod 15, one end of the sliding rod 15 is slidably connected with a limiting block 16, one end of the limiting block 16 is fixedly connected with a second spring 17, and one end of the second spring 17 is fixedly connected with the inner surface of the sliding cavity 14.

Specifically, draw-in groove 18 has been seted up in the outside of stopper 16, the fixed surface of draw-in groove 18 is connected with non slipping spur 19, the shape of draw-in groove 18 sets up to the arc, can make draw-in groove 18 carry out spacingly to wire rope through the design of draw-in groove 18, thereby avoid wire rope to take place to slide at the surface of coupler body 2, through the design of non slipping spur 19, further improve wire rope and the inside frictional force of draw-in groove 18, thereby further improve wire rope anti-skidding effect, curved design can guarantee the laminating degree to wire rope, thereby guaranteed the limiting displacement effect of draw-in groove 18 to wire rope.

Specifically, the outside corner of stopper 16 sets up to the fillet, when wire rope stops in the top of stopper 16, when seting up and carry out the hoist and mount during operation, can pull wire rope under the weight of heavy object, thereby make wire rope produce pressure to stopper 16, under the design of fillet, can make stopper 16 slide to the inside of smooth chamber 14, and make stopper 16 extrude second spring 17, when wire rope slides to the surface of draw-in groove 18, at this moment under the elasticity of second spring 17, drive stopper 16 and extrude wire rope, thereby carry out spacingly to wire rope, thereby avoid wire rope at the surface slip of coupler body 2, guarantee the security at the hoist and mount during operation.

Working principle: when the wire rope hangs in the inside of coupler body 2, the wire rope stops in the top of stopper 16 this moment, when seting up and carry out the hoist and mount during operation, under the weight of heavy object, can pull wire rope, thereby make wire rope produce pressure to stopper 16, under the design of fillet, can make stopper 16 slide to the inside of smooth chamber 14, and make stopper 16 extrude second spring 17, when wire rope slides to the surface of draw-in groove 18, at this moment under the elasticity of second spring 17, drive stopper 16 and extrude wire rope, thereby carry out the spacing to wire rope through draw-in groove 18, thereby avoid wire rope to take place to slide at the surface of coupler body 2, through the design of non slipping block 19, further improved the frictional force of wire rope and draw-in groove 18 inside, thereby further improve the antiskid effect to wire rope, curved design can guarantee the laminating degree to wire rope, thereby guaranteed the spacing effect of draw-in groove 18 to wire rope, through the design of multiunit stop gear, thereby guaranteed the stability after wire rope slides to the surface of coupler body 2, avoided wire rope to take place the wobbling condition at the surface of coupler body 2, thereby the practicality and safety of equipment has been improved when the whole safety has taken place.

In this specification, each embodiment is described in a progressive manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments. In particular, for system embodiments, since they are substantially similar to method embodiments, the description is relatively simple, as relevant to see a section of the description of method embodiments.

The foregoing is merely exemplary of the present utility model and is not intended to limit the present utility model. Various modifications and variations of the present utility model will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are to be included in the scope of the claims of the present utility model.

Claims

1. The utility model provides a lifting hook for hoist, includes mount pad (1), its characterized in that, hook body (2) are installed to the bottom of mount pad (1), the inside rotation of hook body (2) is connected with dwang (3), the both ends fixedly connected with protection piece (4) of dwang (3), the outside fixedly connected with ratchet (5) of dwang (3), the outside fixedly connected with installation piece (6) of hook body (2), the outside threaded connection of installation piece (6) has threaded rod (7), the one end fixedly connected with knob (8) of threaded rod (7), the other end rotation of threaded rod (7) is connected with connecting block (9), the inside sliding connection of connecting block (9) has ratchet (10), the outside fixedly connected with fixed block (11) of ratchet (10), the outside fixedly connected with first spring (12) of fixed block (11), the other end and the 9) of first spring (12) are fixedly connected with, the inside of hook body (2) is provided with spacing subassembly (13).

2. The lifting hook for a crane according to claim 1, wherein the limiting assembly (13) comprises a sliding cavity (14), a sliding rod (15) is fixedly connected to the inner surface of the sliding cavity (14), one end of the sliding rod (15) is slidably connected with a limiting block (16), one end of the limiting block (16) is fixedly connected with a second spring (17), and one end of the second spring (17) is fixedly connected with the inner surface of the sliding cavity (14).

3. The lifting hook for a crane according to claim 2, wherein a clamping groove (18) is formed in the outer side of the limiting block (16), an anti-skid block (19) is fixedly connected to the surface of the clamping groove (18), and the clamping groove (18) is arc-shaped.

4. A crane hook according to claim 2, wherein the outer corners of the stopper (16) are rounded.

5. A crane hook according to claim 1, wherein the spacing assemblies (13) are arranged in two groups.

6. A lifting hook for a crane according to claim 1, characterized in that the ratchet (10) is in snap-connection with the ratchet (5).