Crane hook

Abstract

The invention relates to the field of lifting hooks, and discloses a crane lifting hook which comprises a lifting hook body. The connecting part is arranged on the lifting hook main body; the fixing part comprises an extrusion piece arranged on the lifting hook main body, two fixing pieces are arranged on the connecting part, and a pushing piece is arranged on the lifting hook main body; wherein the extrusion part moves to drive the pushing part to move, and the pushing part moves to enable the distance between the two fixing parts to be changed; the lifting rope can be limited, the lifting rope is prevented from being unhooked, the swing force of the lifting rope can be buffered and eliminated, the swing amplitude in the lifting process is reduced, and the safety is improved.

Description

Technical Field

[0001] The invention relates to the field of hooks, in particular to a crane hook. Background Art

[0002] In today's society, industrial production and lifting operations have become an important force in promoting economic development. Their application scenarios are very wide, covering many fields such as construction, logistics and transportation, and factory production. In these fields, crane hooks are key components for material lifting. During daily lifting operations, due to the influence of various factors, such as wind, inertia, improper human operation, etc., materials will inevitably shake during the lifting process, causing the rope to swing on the hook. There is a situation where the rope is unhooked due to shaking. Once the rope is unhooked, the material will lose support and fall, causing personal safety to the construction workers below. There is a huge safety hazard, and it will also cause huge damage to the surrounding equipment and working environment, increasing maintenance costs. Summary of the Invention

[0003] In view of the above problems in the prior art, the present invention is proposed.

[0004] The above technical problems are solved by the following technical solutions: The present invention proposes a crane hook, which includes a hook body; a connecting part, which is arranged on the hook body; a fixing part, which includes an extrusion part arranged on the hook body, two fixing parts are provided on the connecting part, and a pushing part is provided on the hook body; wherein, the movement of the extrusion part can drive the movement of the pushing part, and the movement of the pushing part can change the distance between the two fixing parts.

[0005] In a preferred embodiment of the crane hook of the present invention: the connecting portion includes a connecting piece provided on the hook body, the connecting piece includes a support provided on the hook body, and the support is provided with a connecting seat.

[0006] In a preferred embodiment of the crane hook described in the present invention: the connecting part also includes a limiting member arranged on the connecting seat, the limiting member includes a first fixed plate arranged on the connecting seat, the first fixed plate is provided with a first composite damping spring, the first composite damping spring is provided with a first limiting plate, and the first limiting plate is provided with a first protective pad.

[0007] In a preferred embodiment of the crane hook of the present invention, the extrusion member includes a groove provided on the hook body, and a second protective pad is provided in the groove.

[0008] In a preferred embodiment of the crane hook of the present invention: the extrusion part also includes an extrusion groove arranged on the groove, two first sliding grooves are provided on the extrusion groove, a first spring is provided on the first sliding groove, a slider is provided on the first spring, and an extrusion seat is commonly provided on the two sliders.

[0009] In a preferred embodiment of the crane hook described in the present invention: the fixing part includes a second slide groove arranged on the connecting seat, a slide seat is provided in the second slide groove, a second fixing plate is provided on the slide seat, a second composite damping spring is provided on the second fixing plate, a second limiting plate is provided on the second composite damping spring, and a third protective pad is provided on the second limiting plate.

[0010] In a preferred embodiment of the crane hook described in the present invention: the pushing member includes a through-slide groove provided on the hook body, a sliding block is provided in the through-slide groove, a first inclined surface is provided on the sliding block, a connecting groove adapted to the sliding block is provided on the extrusion groove, a pushing plate is provided on the sliding block, and a second spring is provided on the pushing plate.

[0011] In a preferred embodiment of the crane hook of the present invention: the pushing member includes a lifting groove provided on the hook body, a lifting seat is provided in the lifting groove, a movable groove is provided on the slide, a fixed block is provided on the slide, a fixed column is provided in the lifting seat, a movable ring is provided on the fixed column, a movable column is provided on the fixed block, and a pushing rod is provided on both the movable ring and the movable column.

[0012] In a preferred embodiment of the crane hook described in the present invention: it also includes: a reinforcement member arranged in one of the first slide grooves, the fixing member includes a third slide groove arranged in one of the first slide grooves, a third spring is provided in the third slide groove, a limiting block is provided on the third spring, a second inclined surface is provided on the limiting block, a third inclined surface is provided on one of the sliders, and a limiting groove is provided on one of the sliders.

[0013] In a preferred embodiment of the crane hook of the present invention, a shifting groove is provided on the hook body, and a shifting rod is provided in the shifting groove.

[0014] The beneficial effects of the present invention are: by arranging the connecting part and the fixing part, the lifting rope can be restricted to prevent the lifting rope from being unhooked, and the force of the swinging of the lifting rope can be buffered and dissipated, thereby reducing the amplitude of the shaking during the lifting process, improving safety, avoiding the unhooking of the lifting rope causing casualties of construction personnel below and damage to equipment, and reducing maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings of the embodiments of the present invention. Obviously, the drawings described below only relate to some embodiments of the present invention and are not intended to limit the present invention. Among them:

[0016] Figure 1 shows an overall schematic diagram of a crane hook;

[0017] Figure 2 Shown Figure 1 Enlarged view of point A in the middle;

[0018] Figure 3 Shows an overall schematic diagram of the connection part of the crane hook;

[0019] Figure 4 A cross-sectional view of a crane hook is shown;

[0020] Figure 5 Shown Figure 3 Enlarged view of point B in the middle;

[0021] Figure 6 A cross-sectional view of a crane hook is shown;

[0022] Figure 7 Shows a partial structural connection diagram of the crane hook;

[0023] Figure 8 A partial structural diagram of a crane hook is shown;

[0024] Figure 9 shows an overall schematic diagram of a crane hook;

[0025] Figure 10 A cross-sectional view of a crane hook is shown;

[0026] Figure 11 A cross-sectional view of a crane hook is shown;

[0027] Figure 12 A partial structural schematic diagram of a crane hook is shown. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the present invention, the present invention is further described in detail below with reference to specific embodiments and the accompanying drawings.

[0029] The terms used in the present invention are those commonly used in the art in view of the functions of the present invention, but these terms may vary according to the intentions of those skilled in the art, precedents, or new technologies in the art. In addition, specific terms may be selected by the applicant, and in such cases, their detailed meanings will be described in the detailed description of the present invention. Therefore, the terms used in the specification should not be understood as simple names, but rather as the meanings of the terms and the overall description of the present invention.

[0030] Example 1

[0031] Reference Figure 1 This embodiment provides a crane hook, comprising a hook body 1; a connecting portion 2 provided on the hook body 1; a fixing portion 3 comprising an extrusion member 31 provided on the hook body 1, two fixing members 32 provided on the connecting portion 2, and a pushing member 33 provided on the hook body 1; wherein the movement of the extrusion member 31 can drive the movement of the pushing member 33, and the movement of the pushing member 33 can change the distance between the two fixing members 32;

[0032] Specifically, the two fixing members 32 are symmetrically arranged. The lifting rope for lifting materials is hung on the hook body 1 and is located on the extrusion member 31 and inside the connecting part 2. When the hook body 1 is lifted, the lifting rope will exert a downward force on the extrusion member 31. The extrusion member 31 will move downward under the extrusion force, and the pushing member 33 will be pushed by the extrusion member 31 to cause displacement. The movement of the pushing member 33 changes the distance between the two fixing members 32, causing the two fixing members 32 to move in the direction of the lifting rope, thereby restricting the lifting rope.

[0033] Example 2

[0034] Reference Figures 1-8 This embodiment is different from the first embodiment in that the connecting portion 2 includes a connecting member 21 provided on the hook body 1, the connecting member 21 includes a support 211 provided on the hook body 1, and a connecting seat 212 is provided on the support 211;

[0035] Specifically, the support 211 is fixedly connected to the hook body 1, the connecting seat 212 is fixedly connected to the support 211, and the support 211 is arranged in an "L" shape;

[0036] The connecting portion 2 further includes a limiting member 22 disposed on the connecting seat 212. The limiting member 22 includes a first fixing plate 221 disposed on the connecting seat 212. A first composite damping spring 222 is disposed on the first fixing plate 221. A first limiting plate 223 is disposed on the first composite damping spring 222. A first protective pad 224 is disposed on the first limiting plate 223.

[0037] Specifically, two limiting members 22 are provided, and the two limiting members 22 are symmetrically arranged. The first fixing plate 221 is fixedly connected to the connecting seat 212. The first composite damping spring 222 is fixedly connected to the first fixing plate 221 and the first limiting plate 223. There are multiple first composite damping springs 222. The first protective pad 224 is fixedly connected to the first limiting plate 223. The lifting rope is located in the first protective pad 224, and the first protective pad 224 is used to protect the lifting rope.

[0038] The extrusion member 31 includes a groove 311 provided on the hook body 1 , and a second protective pad 312 is provided in the groove 311 ;

[0039] Specifically, the groove 311 is arranged in an arc shape, two second protection pads 312 are provided, and the two second protection pads 312 are symmetrically arranged. The second protection pads 312 are arranged in an arc shape, and the lifting rope is located on the second protection pads 312, and the lifting rope is protected by the second protection pads 312;

[0040] The extrusion member 31 further includes an extrusion groove 313 provided on the groove 311 , wherein the extrusion groove 313 is provided with two first sliding grooves 314 , wherein the first sliding groove 314 is provided with a first spring 315 , wherein the first spring 315 is provided with a slider 316 , and the two sliders 316 are provided with an extrusion seat 317 ;

[0041] Specifically, the extrusion groove 313 is connected to the groove 311, the two first slide grooves 314 are symmetrically arranged, the first spring 315 is fixedly connected to the bottom wall of the first slide groove 314, the first spring 315 is fixedly connected to the slider 316, the slider 316 is fixedly connected to the extrusion seat 317, the extrusion seat 317 is slidably connected to the groove 311, the slider 316 is slidably connected to the first slide groove 314, and the second protective pad 312 is also fixedly connected to the extrusion seat 317;

[0042] The fixing member 32 includes a second slide groove 321 provided on the connecting seat 212 , a slide seat 322 provided in the second slide groove 321 , a second fixing plate 323 provided on the slide seat 322 , a second composite damping spring 324 provided on the second fixing plate 323 , a second limiting plate 325 provided on the second composite damping spring 324 , and a third protective pad 326 provided on the second limiting plate 325 ;

[0043] Specifically, the slide 322 is slidably connected to the second slide groove 321 , the second fixing plate 323 is fixedly connected to the slide 322 , the second composite damping spring 324 is fixedly connected to the second fixing plate 323 and the second limiting plate 325 , and the second limiting plate 325 is fixedly connected to the third protective pad 326 ;

[0044] The pusher 33 includes a through-slide groove 331 provided on the hook body 1, a sliding block 3311 provided in the through-slide groove 331, a first inclined surface 3312 provided on the sliding block 3311, a connecting groove 3313 adapted to the sliding block 3311 provided on the extrusion groove 313, a pushing plate 3314 provided on the sliding block 3311, and a second spring 3315 provided on the pushing plate 3314;

[0045] Specifically, the through-slide groove 331 is connected to the extrusion groove 313, and the connecting groove 3313 is connected to the extrusion groove 313. Two through-slide grooves 331 are provided, and the two through-slide grooves 331 are staggered and symmetrically arranged. The sliding block 3311 is slidably connected to the through-slide groove 331, and the sliding block 3311 is slidably connected to the connecting groove 3313. The initial position of the sliding block 3311 is located in the connecting groove 3313. The sliding block 3311 is fixedly connected to the push plate 3314. The two push plates 3314 are fixedly connected to the second spring 3315. The two push plates 3314 are fixedly connected to the two slide seats 322 respectively.

[0046] When in use, specifically, after the lifting rope of the material is hung on the hook body 1, it gradually moves toward the extrusion seat 317 and contacts the extrusion seat 317, and the lifting rope is located in the second protective pad 312. When the hook body 1 is lifting, the lifting rope will exert an extrusion force on the extrusion seat 317 downward. The extrusion seat 317 is subjected to the extrusion force and drives the slider 316 to slide downward under the action of the first slide groove 314 and the extrusion groove 313. When the extrusion seat 317 moves downward, it will squeeze the two sliding blocks 3311. The two sliding blocks 3311 are subjected to the extrusion force on the first inclined surface 3312 and the through slide groove 331. When the second locking plate 325 is in the process of being unlocked, the locking plate 326 is locked and the locking plate 328 is unlocked, so that the second locking plate 326 is locked and the locking plate 328 is unlocked.

[0047] When the hoisted material drives the lifting rope to swing, the lifting rope will be squeezed against the first limiting plate 223 / the second limiting plate 325, so that the first limiting plate 223 / the second limiting plate 325 is forced to move toward the first composite damping spring 222 / the second composite damping spring 324, so that the first composite damping spring 222 / the second composite damping spring 324 is subjected to the squeezing force of the lifting rope. The first composite damping spring 222 / the second composite damping spring 324 buffers and absorbs the squeezing force of the lifting rope, thereby reducing the swing amplitude of the lifting rope and the hoisted material, and further preventing the lifting rope from being unhooked.

[0048] Example 3

[0049] Reference Figures 9-12 This embodiment differs from the second embodiment in that the pushing member 33 includes a lifting groove 332 provided on the hook body 1, a lifting seat 3321 is provided in the lifting groove 332, a movable groove 3322 is provided on the slide 322, a fixed block 3323 is provided on the slide 322, a fixed column 3324 is provided in the lifting seat 3321, a movable ring 3325 is provided on the fixed column 3324, a movable column 3326 is provided on the fixed block 3323, and a pushing rod 3327 is provided on both the movable ring 3325 and the movable column 3326.

[0050] Specifically, the lifting seat 3321 is fixedly connected to the extrusion seat 317, the lifting slot 332 is communicated with the extrusion slot 313, the lifting seat 3321 is slidably connected to the hook body 1 through the lifting slot 332, two fixed blocks 3323 are provided, and the two fixed blocks 3323 are symmetrically arranged, the fixed plate is fixedly connected to the sliding seat 322, the fixed column 3324 is fixedly connected to the inner wall of the lifting seat 3321, two movable rings 3325 are rotatably connected, the movable ring 3325 is rotatably connected to the fixed column 3324, the movable ring 3325 is annularly arranged, the movable column 3326 is rotatably connected to the fixed block 3323, the outer surfaces of the corresponding movable rings 3325 and the corresponding movable columns 3326 are fixedly connected to the corresponding push rods 3327, the push rods 3327 are movably connected to the movable slots 3322, and the movable slots 3322 prevent the movement of the push rods 3327 from being affected;

[0051] When in use, in conjunction with Example 2, when the extrusion seat 317 moves downward, it will drive the lifting seat 3321 to move downward, and the lifting seat 3321 will drive the fixed column 3324 to move downward. The movable ring 3325 moves downward along with the fixed column 3324. The downward movement of the movable ring 3325 will drive the push rod and the movable column 3326 to synchronously deflect the angle (such as Figure 12 ), so that the push rod applies an extrusion force toward the slide seat 322, so that the two slide seats 322 drive the second fixing plate 323 away from each other under the action of the second slide groove 321, so that the second limiting plate 325 moves toward the direction of the lifting rope until the third protection pad 326 contacts the lifting rope, and at the same time, the extrusion seat 317 contacts the bottom of the extrusion groove 313. Through the cooperation between the fixing member 32 and the limiting member 22, the lifting rope can be confined within the first limiting plate 223, effectively preventing the lifting rope from being unhooked and avoiding the safety hazard caused by the lifting rope being unhooked;

[0052] Example 4

[0053] Reference Figure 2-Figure 10This embodiment differs from the second embodiment in that it further includes a reinforcing member 4 disposed in one of the first sliding grooves 314 , the fixing member 32 includes a third sliding groove 41 disposed in one of the first sliding grooves 314 , a third spring 42 is disposed in the third sliding groove 41 , a limiting block 43 is disposed on the third spring 42 , a second inclined surface 44 is disposed on the limiting block 43 , a third inclined surface 45 is disposed on one of the sliders 316 , and a limiting groove 46 is disposed on one of the sliders 316 ;

[0054] Specifically, the third chute 41 is slidably connected to the corresponding first chute 314, the third spring 42 is fixedly connected to the inner wall of the third chute 41, the third spring 42 is fixedly connected to the limiting block 43, the second inclined surface 44 is adapted to the third inclined surface 45, the limiting block 43 is plug-connected to the limiting groove 46, and the limiting block 43 is slidably connected to the third chute 41;

[0055] The hook body 1 is provided with a shifting groove 47, and a shifting rod 48 is provided in the shifting groove 47;

[0056] Specifically, the shifting groove 47 is connected to the third sliding groove 41, the shifting rod 48 is slidably connected to the shifting groove 47, and the shifting rod 48 is fixedly connected to the limiting block 43;

[0057] When in use, in conjunction with Example 2, when the extrusion seat 317 moves downward, it will squeeze the limiting block 43. The limiting block 43 moves in the direction away from the extrusion seat 317 under the action of the second inclined surface 44, the third inclined surface 45 and the third sliding groove 41. The third spring 42 is compressed and deformed under the force to generate a reaction force. When the extrusion seat 317 contacts the bottom wall of the extrusion groove 313, the limiting block 43 corresponds to the position of the limiting groove 46. At this time, the limiting block 43 is quickly reset under the action of the third spring 42, so that the limiting block 43 is inserted into the limiting groove 46, thereby limiting the extrusion seat 317, ensuring the effect of limiting the lifting rope and improving the anti-unhooking effect.

[0058] When the lifting rope needs to be removed, it is only necessary to toggle the lever 48 so that the lever 48 moves away from the lifting rope under the action of the toggle slot 47. The limiting block 43 moves away from the limiting slot 46 along with the lever 48, thereby releasing the restriction on the squeezing seat 317. At this time, it is only necessary to pull the lifting rope upward so that the squeezing seat 317 drives the slider 316 to move upward under the action of the first spring 315, so that the two fixing members 32 return to their original positions. At this time, the lifting rope can be removed from the hook body 1.

[0059] Finally, it should be pointed out that the methods and devices described in detail above are merely embodiments, and those skilled in the art can modify these embodiments in different ways without departing from the scope of the present invention.

Claims

1. A crane hook, characterized in that: include, Hook body (1); A connecting portion (2) provided on the hook body (1); A fixing portion (3) comprising an extrusion member (31) provided on the hook body (1), two fixing members (32) provided on the connecting portion (2), and a pushing member (33) provided on the hook body (1); The movement of the extruding member (31) can drive the pushing member (33) to move, and the movement of the pushing member (33) can change the distance between the two fixing members (32).

2. The crane hook according to claim 1, characterized in that: The connecting portion (2) comprises a connecting piece (21) provided on the hook body (1), the connecting piece (21) comprises a support (211) provided on the hook body (1), and a connecting seat (212) is provided on the support (211).

3. The crane hook according to claim 2, characterized in that: The connecting portion (2) further comprises a limiting member (22) provided on the connecting seat (212), the limiting member (22) comprising a first fixing plate (221) provided on the connecting seat (212), a first composite damping spring (222) provided on the first fixing plate (221), a first limiting plate (223) provided on the first composite damping spring (222), and a first protective pad (224) provided on the first limiting plate (223).

4. The crane hook according to claim 3, wherein: The extrusion member (31) comprises a groove (311) provided on the hook body (1), and a second protective pad (312) is provided in the groove (311).

5. The crane hook according to claim 4, characterized in that: The extrusion member (31) further comprises an extrusion groove (313) provided on the groove (311), two first slide grooves (314) are provided on the extrusion groove (313), a first spring (315) is provided on the first slide groove (314), a slider (316) is provided on the first spring (315), and an extrusion seat (317) is commonly provided on the two sliders (316).

6. The crane hook according to claim 5, characterized in that: The fixing member (32) includes a second sliding groove (321) provided on the connecting seat (212), a sliding seat (322) is provided in the second sliding groove (321), a second fixing plate (323) is provided on the sliding seat (322), a second composite damping spring (324) is provided on the second fixing plate (323), a second limiting plate (325) is provided on the second composite damping spring (324), and a third protective pad (326) is provided on the second limiting plate (325).

7. The crane hook according to claim 6, characterized in that: The pushing member (33) includes a through-slide groove (331) provided on the hook body (1), a sliding block (3311) is provided in the through-slide groove (331), a first inclined surface (3312) is provided on the sliding block (3311), a connecting groove (3313) adapted to the sliding block (3311) is provided on the extrusion groove (313), a pushing plate (3314) is provided on the sliding block (3311), and a second spring (3315) is provided on the pushing plate (3314).

8. The crane hook according to claim 6, wherein: The pushing member (33) comprises a lifting groove (332) provided on the hook body (1); a lifting seat (3321) is provided in the lifting groove (332); a movable groove (3322) is provided on the slide seat (322); a fixed block (3323) is provided on the slide seat (322); a fixed column (3324) is provided in the lifting seat (3321); a movable ring (3325) is provided on the fixed column (3324); a movable column (3326) is provided on the fixed block (3323); and a pushing rod (3327) is provided on both the movable ring (3325) and the movable column (3326).

9. The crane hook according to claim 6, wherein: The invention also includes a reinforcing member (4) arranged in one of the first sliding grooves (314), the fixing member (32) includes a third sliding groove (41) arranged in one of the first sliding grooves (314), a third spring (42) is provided in the third sliding groove (41), a limiting block (43) is provided on the third spring (42), a second inclined surface (44) is provided on the limiting block (43), a third inclined surface (45) is provided on one of the sliding blocks (316), and a limiting groove (46) is provided on one of the sliding blocks (316).

10. The crane hook according to claim 9, characterized in that: It also includes a shifting groove (47) provided on the hook body (1), and a shifting rod (48) is provided in the shifting groove (47).

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