Quickly grab and unlock the anti-skid hook set

Abstract

The application discloses a quick-grasping and unlocking anti-skid lifting hook group, which comprises a plurality of lifting hooks, an anti-falling tower ring and an axial intermittent limiting mechanism, the anti-falling tower ring is horizontally arranged, the lifting hooks are uniformly and spacedly arranged on the anti-falling tower ring, chains are connected to the lifting hooks, the axial intermittent limiting mechanism is located above the anti-falling tower ring, the axial intermittent limiting mechanism is connected with the anti-falling tower ring through a fixing rod, and the axial intermittent limiting mechanism is connected with all the lifting hooks respectively, and the chains and the axial intermittent limiting mechanism drive the lifting hooks to grasp and unlock. The lifting and relaxation of the chains in combination with the rotation of the axial intermittent limiting mechanism can enable the lifting hooks to automatically hook the mouth of a crucible and leave the mouth of the crucible, that is, the grasping and unlocking of the lifting hooks can be realized through remote operation, the risk of scalding is reduced, the safety is improved, and the whole lifting hook structure is simple and easy to operate.

Description

Technical Field

[0001] The present invention relates to the technical field of slings, and in particular to an anti-slip hook group capable of rapid grasping and unlocking. Background Art

[0002] There are 3-6 hanging holes on the flange edge of the large crucible mouth. When hanging the crucible, buckle a group of 3-6 hanging hooks into the hanging holes of the crucible mouth, and then insert the limiting pins into the limiting holes of the hooks and the crucible mouth. Figure 1 As shown, the crucible can be locked firmly and the hook can be prevented from slipping during lifting.

[0003] Although the hook lifting function of traditional large crucible lifting devices can be realized, the main disadvantage is that the installation and removal of the hook is cumbersome, time-consuming and labor-intensive. At the same time, due to the high temperature of the crucible, the operator is at high risk of burns when installing the hook and limit pin, and the safety is low. The safety of the operator is even less guaranteed in an environment with restricted vision. Summary of the Invention

[0004] The purpose of the present invention is to provide a non-slip hook assembly that can be quickly grasped and unlocked, so as to solve the problem that during the existing large crucible lifting process, the operator has to install the hook and limit pins at close range, which is cumbersome, time-consuming and labor-intensive, and has a high risk of burns.

[0005] The technical solution of the present invention to solve the above technical problems is as follows:

[0006] A quick-grab and unlock anti-slip hook assembly, comprising: a plurality of hooks, an anti-slip tower ring, and an axial discontinuity limiting mechanism;

[0007] The anti-drop tower ring is set horizontally, and all the hooks are evenly spaced on the anti-drop tower ring. The hooks are connected with chains. The axial intermittent limiting mechanism is located above the anti-drop tower ring. The axial intermittent limiting mechanism is connected to the anti-drop tower ring through a fixed rod, and the axial intermittent limiting mechanism is connected to all the hooks.

[0008] The chain and axial intermittent limit mechanism drive the hook to grab and unlock.

[0009] Furthermore, the above-mentioned hook includes a limiting part, a lifting part, an anti-slip part and a grabbing part which are connected in sequence; the limiting part is provided with a limiting hole, the lifting part is provided with a lifting hole, the anti-slip part is provided with an anti-slip hole, and the grabbing part is provided with a grabbing hook; the axial intermittent limiting mechanism is hinged to the limiting part at the limiting hole, the chain is hinged to the lifting part at the lifting hole, the anti-slip tower ring is hinged to the anti-slip part at the anti-slip hole, and the grabbing hook and the anti-slip tower ring are spaced apart in the vertical direction; when the anti-slip hole is used as the rotation fulcrum, the limiting part and the lifting part rotate downward.

[0010] Furthermore, the above-mentioned limiting holes, lifting holes and anti-drop holes are arranged alternately in the horizontal direction.

[0011] Furthermore, the limiting portion, the hoisting portion, the anti-slip portion and the grasping portion are integrally formed.

[0012] Furthermore, the above-mentioned axial discontinuity limiting mechanism includes a stabilizing disk, a rotating disk and multiple sets of sliding components;

[0013] The bottom of the stabilizing plate is connected to the anti-fall-off tower ring through a fixing rod;

[0014] The rotating disk is located on top of the stabilizing disk and rotates with the rotating disk; the stabilizing disk and the rotating disk are respectively provided with slots and holes with the same number as the sliding components;

[0015] The number of sliding assemblies is consistent with the number of hooks and corresponds one to one. The sliding assembly includes a guide sleeve and a sliding rod; the guide sleeve extends into the through groove and is hinged to the stabilizing disk, the top of the sliding rod slides with the guide sleeve and passes through the through hole, and the bottom of the sliding rod is hinged to the limiting part at the limiting hole.

[0016] Furthermore, mounting ears are respectively provided on both sides of all the above-mentioned through slots, and the mounting ears are arranged on the bottom side of the stabilizing plate. The mounting ears of the same through slot are rotatably connected to the guide sleeve through a guide sleeve pin.

[0017] Furthermore, the mounting ears and the stabilizing plate are integrally formed.

[0018] Furthermore, a plurality of stabilizing disc ears are provided on the outer side of the stabilizing disc, and the stabilizing disc ears are connected to limiting rollers through stabilizing disc ear pins. The limiting rollers are in contact with the rotating disc to limit the rotation of the rotating disc along its central axis.

[0019] Furthermore, a rotating block is provided at the bottom center of the rotating disk, and the rotating block passes through the stabilizing disk.

[0020] Furthermore, the above-mentioned perforations are fan-shaped holes.

[0021] The present invention has the following beneficial effects:

[0022] (1) The chain of the present invention is used to connect with external lifting components, such as lifting rings, etc., to drive the entire hook group to move. The anti-slip tower ring is used to be placed at the mouth of the crucible to position and limit the hook. At the same time, when the anti-slip tower ring is placed at the mouth of the crucible, the lifting and relaxation of the chain combined with the rotation of the axial intermittent limiting mechanism can enable the hook to automatically hook the mouth of the crucible and leave the mouth of the crucible, that is, the hook can be grabbed and unlocked by remote operation. Compared with the existing lifting method, the operator does not need to hang the hook on the suspension hole of the boiler mouth at close range, which reduces the risk of scalding and improves safety. In addition, the entire hook structure is simple and easy to operate.

[0023] (2) The axial intermittent limiting mechanism of the present invention is used to alternately limit and release the axial upward limit of the slide rod. When not limited, the slide rod passes through the through hole. When limiting is required, the slide rod slides axially downward under the action of gravity (ensuring that the slide rod is still located in the guide sleeve after sliding to the lowest point). After the slide rod slides out of the through hole, the rotating disk is rotated so that the top of the slide rod corresponds to the rotating disk. The top of the slide rod is restricted from moving axially upward at the rotating disk. When limiting is not required, the rotating disk is rotated so that the top of the slide rod corresponds to the through hole. When the slide rod moves axially upward, it can pass through the through hole, thereby releasing the axial limit on the slide rod. Repeating the above steps can achieve alternating axial upward limiting and release of the slide rod. Compared with the existing method of directly using electric control, the structure is simpler, easier to maintain, lower in cost, and has a longer service life in high temperature environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of traditional crucible hoisting;

[0025] Figure 2 This is a schematic structural diagram of the anti-slip hook assembly for quick grabbing and unlocking according to the present invention;

[0026] Figure 3 It is a structural schematic diagram of the hook of the present invention;

[0027] Figure 4 It is a schematic diagram of the partitions of the hook of the present invention;

[0028] Figure 5 It is a schematic diagram of the connection between the hook and the chain, the axial discontinuity limiting mechanism and the anti-slip tower ring of the present invention;

[0029] Figure 6 It is a structural schematic diagram of the axial discontinuity limiting mechanism of the present invention;

[0030] Figure 7 It is a structural schematic diagram of the stabilizing disk of the present invention;

[0031] Figure 8 It is a structural schematic diagram of the rotating disk of the present invention;

[0032] Figures 9 to 14 This is a schematic diagram of the process of grabbing a crucible according to the present invention.

[0033] In the figure: 30-chain; 40-hook; 41-limiting part; 42-hoisting part; 43-anti-slip part; 44-grabbing part; 50-axial intermittent limiting mechanism; 51-stabilizing disk; 52-rotating disk; 53-groove; 54-perforation; 55-guide sleeve; 56-slide rod; 57-mounting ear; 58-guide sleeve pin; 60-fixing rod; 90-anti-slip tower ring; 100-crucible; 411-limiting hole; 421-hoisting hole; 431-anti-slip hole; 441-grabbing hook; 511-stabilizing disk ear; 512-stabilizing disk ear pin; 513-limiting roller; 521-rotating block. DETAILED DESCRIPTION

[0034] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0035] Please refer to Figure 2 The present embodiment provides an anti-slip hook group for quick grasping and unlocking, which includes: three hooks 40, an anti-slip ring 90 and an axial discontinuous limiting mechanism 50. The anti-slip ring 90 is arranged horizontally, and all the hooks 40 are hinged on the anti-slip ring 90 at even intervals. The anti-slip ring 90 has the function of positioning and limiting all the hooks 40. Therefore, when the crucible 100 is hoisted, it has the function of preventing it from slipping off (the hook 40 will not slide outward). At the same time, when the anti-slip ring 90 is placed at the mouth of the crucible 100, the position where it is hinged to the hook 40 serves as a fulcrum, and the hook 40 rotates around this fulcrum. A chain 30 is connected to the hook 40, and the chain 30 is used to connect to external hoisting components, such as a hoisting ring. The axial intermittent stopper 50 is located above the anti-slip ring 90 and is fixedly connected to the anti-slip ring 90 via a fixing rod 60. Specifically, the ends of the fixing rod 60 are connected to the anti-slip ring 90 and the axial intermittent stopper 50, respectively. The fixing methods include but are not limited to threading, bolting, welding, and riveting. The axial intermittent stopper 50 is also hinged to the hook 40. The chain 30 and the axial intermittent stopper 50 drive the hook 40 to grasp and unlock.

[0036] Please refer to Figure 3 and Figure 4 The hook 40 is hook-shaped and includes a stopper 41, a hoisting portion 42, an anti-slip portion 43, and a gripping portion 44, which are sequentially connected from top to bottom. The stopper 41, hoisting portion 42, anti-slip portion 43, and gripping portion 44 are integrally formed. The stopper 41 has a stopper hole 411 for articulating with the axial intermittent stopper 50. The hoisting portion 42 has a hoisting hole 421 for articulating with the chain 30. The anti-slip portion 43 has an anti-slip hole 431 for articulating with the anti-slip tower ring 90. The gripping portion 44 has a hook 441 for hooking the mouth of the crucible 100.

[0037] In this embodiment, the limiting portion 41 is located at the top of the anti-slip ring 90, the outer side of the anti-slip ring 90 is hinged to the anti-slip portion 43, and the grab hook 441 is located above the anti-slip ring 90, that is, the hook-shaped hook 40 semi-surrounds the anti-slip ring 90 from the outer side of the anti-slip ring 90.

[0038] In this embodiment, the limiting holes 411 , the hoisting holes 421 and the anti-drop holes 431 are alternately arranged in the horizontal direction.

[0039] Please refer to Figures 5 to 8 The axial intermittent limit mechanism 50 includes a stabilizing disc 51, a rotating disc 52, and three sets of sliding assemblies. The rotating disc 52 is located on top of the stabilizing disc 51 and rotates in conjunction with the stabilizing disc 51. The three sets of sliding assemblies are evenly spaced around the stabilizing disc 51 and pass through the rotating disc 52. The rotating disc 52 rotates to alternately limit and release the sliding assemblies axially upward. Compared to existing direct electric control methods, this has a simpler structure, is easier to maintain, has lower costs, and has a longer lifespan in high-temperature environments.

[0040] The stabilizing plate 51 has a mounting hole in its center. Three slots 53 are evenly spaced along its edge. Each slot 53 is flanked by mounting ears 57. In this embodiment, the mounting ears 57 are located at the bottom of the stabilizing plate 51 and are integrally formed with the plate. A plurality of upwardly extending stabilizing ears 511 are welded to the edge of the stabilizing plate 51. These ears 511 are connected to limiting rollers 513 via stabilizing ear pins 512. The limiting rollers 513 are rotatably connected to the stabilizing ear pins 512, and their rolling surfaces contact the top surface of the rotating plate 52, limiting rotation of the rotating plate 52 along its central axis.

[0041] A rotating block 521 is provided at the bottom of the rotating disk 52. The rotating block 521 passes through the mounting hole of the stabilizing disk 51. The rotating disk 52 is restrained by the rotating block 521, the stabilizing disk ears 511, and the limiting roller 513, so that the rotating disk 52 can only rotate along its own central axis. The rotating disk 52 has three through-holes 54, which correspond to the through-slots 53 and the sliding assembly, allowing the sliding assembly to pass through the through-holes 54 and through-slots 53.

[0042] In order to allow the sliding assembly to smoothly pass through the through hole 54 , in this embodiment, the through hole 54 is a fan-shaped hole, and the boundaries on both sides of the through groove 53 are projected into the fan-shaped hole.

[0043] The sliding assembly corresponds to the hook 40 and includes a guide sleeve 55 and a slide rod 56. The guide sleeve 55 is pivotally connected to the corresponding mounting lug 57 via a guide sleeve pin 58, allowing the entire sliding assembly to be positioned not only vertically but also at a certain angle relative to the vertical. The top of the slide rod 56 penetrates the guide sleeve 55 and slides with it. Simultaneously, the slide rod 56 passes through the through hole 54. At this point, the slide rod 56 is in an unrestricted state, and its bottom is hingedly connected to the corresponding retaining portion 41.

[0044] Since the slide rod 56 is hinged to the limit portion 41 and the guide sleeve 55 is hinged to the mounting ear 57 , when the hook 40 rotates around the anti-drop hole 431 , the guide sleeve 55 and the slide rod 56 can rotate accordingly, ensuring that the slide rod 56 can slide in the guide sleeve 55 .

[0045] In other embodiments of the present invention, the number of sliding components, slots 53, holes 54 and hooks 40 can also be 1, 2, 4, 5, etc., ensuring that the sliding components, slots 53, holes 54 and hooks 40 correspond one to one.

[0046] Please refer to Figures 9 to 11 , the grabbing process of the hook group of the present invention:

[0047] (1) Before the lifting operation, the entire hook assembly is in a suspended state by the chain 30 (the chain is connected to the lifting components, such as the lifting ring, etc., and the lifting components are connected to the overhead crane, etc.), and the slide rod 56 passes through the through hole 54. At this time, the slide rod 56 is not restricted;

[0048] (2) Place the anti-drop ring 90 on the auxiliary workbench (without hindering the rotation of the hook 40) until the chain 30 is relaxed. At this time, the slide bar 56 slides downward along the guide sleeve 55 under the action of gravity until it enters the guide sleeve 55, and the grab hook 441 rotates upward;

[0049] (3) The rotating disk 52 rotates and blocks the through slot 53, and then the chain 30 is gradually stretched, tightened, and moved upward. The slide bar 56 slides upward on the guide sleeve 55 until the top of the slide bar 56 contacts the rotating disk 52. The slide bar 56 is limited in the axial upward direction. At this time, the grab hook 441 rotates downward, and finally the hook 40 is in a tilted state;

[0050] (4) The chain 30 continues to move upward, and the entire hook assembly is moved above the crucible 100;

[0051] (5) After the position adjustment of the hook group is completed, the chain 30 is lowered, and the anti-drop tower ring 90 is placed on the mouth of the crucible 100. The anti-drop tower ring 90 is fixed on the mouth of the crucible 100 under the action of gravity;

[0052] (6) The chain 30 continues to be lowered and relaxed, and the slide bar 56 slides downward along the guide sleeve 55 under the action of gravity, ensuring that the slide bar 56 is separated from the rotating disk 52. At this time, the grab hook 441 rotates upward;

[0053] (7) The chain 30 moves upward, and the rotating disk 52 rotates at the same time, so that the through groove 53 is opposite to the through hole 54, and the slide rod 56 slides upward along the guide sleeve 55 until it passes through the through hole 54. At this time, the grab hook 441 rotates downward to the bottom of the mouth of the crucible 100, and the edge of the mouth of the crucible 100 is restricted between the grab hook 441 and the anti-slip tower ring 90;

[0054] (8) The chain 30 continues to move upward, thereby lifting the crucible 100.

[0055] Please refer to Figures 12 to 14 , the unlocking process of the hook assembly of the present invention:

[0056] (1) After the crucible 100 is hoisted above the designated position, the chain 30 moves downward to place the crucible 100 at the designated position;

[0057] (2) The chain 30 continues to move downward and relaxes, and the slide bar 56 slides downward along the guide sleeve 55 under the action of gravity until it enters the guide sleeve 55, and at this time the grab hook 441 rotates upward;

[0058] (3) The chain 30 moves upward, and the rotating disk 52 rotates at the same time, so that the rotating disk 52 blocks the through slot 53, and the chain 30 continues to move upward until the top of the slide bar 56 contacts the rotating disk 52, and the slide bar 56 is limited in the axial upward direction. At this time, the hook group is in a tilted state as a whole, that is, the hook group is in an unlocked state;

[0059] (4) The chain 30 continues to move upward, the hook assembly continues to be in the unlocked state, the chain 30 drives the entire hook assembly to move upward, the anti-slip tower ring 90 is separated from the crucible 100, and the entire lifting process is completed.

[0060] The hook assembly of this embodiment can automatically hook the mouth of the crucible and remove from the mouth of the crucible by lifting and loosening the chain in combination with the rotation of the rotating disk 52. That is, the hook can be grabbed and unlocked by remote operation. Compared with the existing lifting method, the operator does not need to hang the hook on the suspension hole of the boiler mouth at close range, which reduces the risk of scalding and improves safety. In addition, the entire hook structure is simple and easy to operate.

[0061] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A quick-grab and unlock anti-slip hook assembly, characterized in that: include: A plurality of hooks (40), an anti-drop tower ring (90), and an axial discontinuity limiting mechanism (50); The anti-slip ring (90) is arranged horizontally, all the hooks (40) are evenly spaced and arranged on the anti-slip ring (90), a chain (30) is connected to the hook (40), the axial discontinuity limiting mechanism (50) is located above the anti-slip ring (90), the axial discontinuity limiting mechanism (50) is connected to the anti-slip ring (90) through a fixing rod (60), and the axial discontinuity limiting mechanism (50) is connected to all the hooks (40); The chain (30) and the axial discontinuous limiting mechanism (50) drive the hook (40) to grasp and unlock; The hook (40) comprises a limiting portion (41), a hoisting portion (42), an anti-slip portion (43) and a grabbing portion (44) connected in sequence; the limiting portion (41) is provided with a limiting hole (411), the hoisting portion (42) is provided with a hoisting hole (421), the anti-slip portion (43) is provided with an anti-slip hole (431), and the grabbing portion (44) is provided with a grabbing hook (441); the axial intermittent limiting mechanism (50) is provided at the limiting hole (411). The chain (30) is hinged to the limiting portion (41), the chain (30) is hinged to the hoisting portion (42) at the hoisting hole (421), the anti-slip ring (90) is hinged to the anti-slip portion (43) at the anti-slip hole (431), and the grab hook (441) and the anti-slip ring (90) are spaced apart in the vertical direction; when the anti-slip hole (431) is used as a rotation fulcrum, the limiting portion (41) and the hoisting portion (42) rotate downward; The axial discontinuity limiting mechanism (50) comprises a stabilizing disk (51), a rotating disk (52), and multiple sets of sliding components; The bottom of the stabilizing plate (51) is connected to the anti-slip tower ring (90) via the fixing rod (60); The rotating disk (52) is located on top of the stabilizing disk (51) and is rotatably coupled to the stabilizing disk (51); the stabilizing disk (51) and the rotating disk (52) are respectively provided with through grooves (53) and through holes (54) of the same number as the sliding assembly; The number of the sliding components is consistent with the number of the hooks (40) and corresponds one to one. The sliding components include a guide sleeve (55) and a slide rod (56); the guide sleeve (55) extends into the through groove (53) and is hinged to the stabilizing plate (51); the top of the slide rod (56) slides with the guide sleeve (55) and passes through the through hole (54); the bottom of the slide rod (56) is hinged to the limiting portion (41) at the limiting hole (411); Both sides of all the through slots (53) are provided with mounting ears (57), and the mounting ears (57) are arranged on the bottom side of the stabilizing plate (51). The mounting ears (57) of the same through slot (53) are rotatably connected to the guide sleeve (55) through a guide sleeve pin (58).

2. The anti-slip hook assembly with quick grab and unlock according to claim 1, characterized in that: The limiting holes (411), the hoisting holes (421) and the anti-drop holes (431) are arranged alternately in the horizontal direction.

3. The anti-slip hook assembly with quick grab and unlock according to claim 2, characterized in that: The limiting portion (41), the hoisting portion (42), the anti-slip portion (43) and the grasping portion (44) are integrally formed.

4. The anti-slip hook assembly with quick grab and unlock function according to claim 1, characterized in that: The mounting ear (57) and the stabilizing disc (51) are integrally formed.

5. The anti-slip hook assembly with quick grab and unlock function according to claim 1, characterized in that: A plurality of stabilizing disc ears (511) are provided on the outer side of the stabilizing disc (51), and the stabilizing disc ears (511) are connected to a limiting roller (513) via a stabilizing disc ear pin (512). The limiting roller (513) contacts the rotating disc (52) and is used to limit the rotation of the rotating disc (52) along its central axis.

6. The anti-slip hook assembly with quick grab and unlock function according to claim 1, characterized in that: A rotating block (521) is provided at the bottom center of the rotating disk (52), and the rotating block (521) passes through the stabilizing disk (51).

7. The anti-slip hook assembly with quick grab and unlock function according to claim 1, characterized in that: The perforations (54) are fan-shaped holes.

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