Adjustable lifting hook structure

Abstract

The utility model relates to the technical field of lifting hook structures, in particular to an adjustable lifting hook structure which comprises a lifting hook assembly and a lifting assembly, the lifting hook assembly comprises a J-shaped lifting hook, the lifting hook comprises a vertical part, a horizontal part and a tip part, and a hook groove is formed among the vertical part, the horizontal part and the tip part. A sealing plate used for sealing an opening of the hook groove is rotationally arranged on the vertical part, a liftable driving assembly is arranged at the bottom of the hook groove, and the driving assembly moves downwards to drive the sealing plate to rotate to seal the opening of the hook groove; the lifting hook is arranged on the lifting assembly in a lifting mode through the adjusting assembly, through the arrangement of the driving assembly, when the lifting assembly drives the lifting hook to ascend, a heavy object sinks due to the dead weight, the lifting rope pulls the driving assembly downwards, the driving assembly is made to move downwards, and then the sealing plate can be driven to seal an opening of a hook groove; therefore, the lifting hook is subjected to lifting adjustment on the lifting assembly, and then the lifting hook can lift heavy objects with different heights.

Description

Technical Field

[0001] The utility model relates to the technical field of hook structures, in particular to an adjustable hook structure. Background Art

[0002] A crane refers to a multi-action lifting machinery that can vertically lift and horizontally move heavy objects within a certain range. It is also called an overhead crane, overhead crane, or crane. When a crane is lifting heavy objects, it needs to use a hook to hook the heavy objects.

[0003] For example, a hook assembly disclosed in patent No. CN212655350U, although the hook assembly can measure the weight of the hoisted object by setting a weighing device, avoid the weight of the hoisted object exceeding the maximum lifting weight of the equipment, avoid the occurrence of safety accidents, and improve safety; however, when the hook assembly is actually used, when the hook body lifts the heavy object, the opening on the hook body is not blocked, so that the lifting rope is easy to detach from the hook body during the lifting process, there is a certain safety hazard, so it needs to be improved. Utility Model Content

[0004] The purpose of the utility model is to provide an adjustable hook structure to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An adjustable hook structure includes a hook assembly and a lifting assembly. The hook assembly includes a J-shaped hook. The hook includes a vertical portion, a horizontal portion and a tip portion. A hook groove is formed between the vertical portion, the horizontal portion and the tip portion. A sealing plate is rotatably provided on the vertical portion for sealing the hook groove opening. A liftable driving assembly is provided at the bottom of the hook groove. The driving assembly moves downward to drive the sealing plate to rotate and seal the hook groove opening. The hook can be lifted and lowered on the lifting assembly through an adjusting assembly.

[0007] Furthermore, a mounting groove is provided on one side of the sealing plate along its length direction, and the vertical part is inserted into the mounting groove. A hinge rod is provided at the opening position of the mounting groove, and the hinge rod passes through the vertical part to realize the rotational installation of the sealing plate on the vertical part; a connected mounting cavity is provided in the vertical part and the horizontal part, and the driving component includes a traction member provided in the mounting cavity and a driving member provided in the hook groove, and the driving member drives the traction member to pull the sealing plate to rotate.

[0008] Furthermore, the driving member includes a mounting block which is lifted and lowered in the hook groove, the mounting block is provided with a fixing column which passes through the horizontal part and extends into the mounting cavity, the mounting cavity is provided with a fixing block which can be lifted and lowered and is connected to the lower end of the fixing column, and the mounting cavity is provided with a spring for pushing the mounting block upward.

[0009] Furthermore, the traction member includes a mounting plate relatively arranged on one side of the fixed block, the two mounting plates are connected by a connecting rod, sliding grooves are relatively arranged on the side walls relatively to the vertical parts, a sliding rod is arranged in the sliding groove, the sliding rod passes through the sealing plate, a connecting plate is hingedly installed on the sliding rod, one end of the connecting plate is hingedly connected to the connecting rod, and sliding grooves are relatively arranged on the side walls relatively to the mounting grooves along their length directions, and the sliding grooves are used for the sliding rods to slide.

[0010] Furthermore, a lifting cavity is provided in the vertical part along its vertical direction, a lifting column is provided on the lower side of the lifting assembly, the lifting column is extended into the lifting cavity, a plurality of limit holes are evenly provided on the side wall of the lifting column, and the adjustment assembly includes a limit rod provided on the vertical part, the limit rod passes through the side wall of the vertical part and extends into the corresponding limit hole.

[0011] Furthermore, a locking block is fixedly connected to the side wall of the vertical part, a locking hole is provided on the side wall of the locking block for the limiting rod to extend into, a limiting block is provided on the limiting rod, a limiting groove is provided in the locking block along the axial direction of the limiting rod, and a notch is provided on the side wall of the lock buckle for the limiting block to extend into the limiting groove and slide.

[0012] Furthermore, an openable and closable buckle plate is provided on the lower end surface of the hook, and one end of the spring abuts against the side wall of the buckle plate.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model, through the setting of the driving component, allows the rope for binding the heavy object to be hung in the hook groove. When the hook structure is hoisting, the heavy object causes the driving component to move downward due to its own weight, and then can drive the sealing plate to automatically block the opening of the hook groove, thereby better preventing the rope from slipping in the hook groove.

[0015] 2. The utility model, through the setting of the adjustment component, allows the hook to be raised and lowered on the lifting component, so that the length of the hook structure can be adjusted better, which is convenient for lifting heavy objects and improves the applicability of the hook structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model is a structural schematic diagram of an adjustable hook structure.

[0017] Figure 2 It is a schematic diagram of the structure inside the installation cavity in the utility model.

[0018] Figure 3 It is a structural schematic diagram of the driving component in the utility model.

[0019] Figure 4 It is a structural schematic diagram of the adjustment component in the utility model.

[0020] Figure 5 It is a structural schematic diagram of the inner cross section of the lifting cavity in the utility model.

[0021] Figure 6 It is a schematic diagram of the exploded structure of the regulating component in the utility model.

[0022] The meanings of the numbers in the figure are as follows: 10, hook assembly; 20, lifting assembly;

[0023] 100, hook; 101, tip; 102, horizontal part; 110, mounting frame; 120, cover plate; 123, pulley; 130, spring; 140, slide groove; 150, slide groove; 160, mounting groove; 170, locking block; 180, vertical part; 190, lifting column; 191, limit hole;

[0024] 200, mounting cavity; 210, mounting block; 220, hook groove; 230, fixing column; 250, fixing block;

[0025] 300, mounting plate; 310, connecting rod; 320, connecting plate; 330, hinged rod; 340, sliding rod;

[0026] 400, limiting rod; 410, notch; 500, lifting cavity; 600, locking hole; 610, limiting groove; 620, limiting block. DETAILED DESCRIPTION

[0027] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments are only used to explain the utility model but not to limit it.

[0028] The following is combined with Figure 1-Figure 6 This embodiment is described in further detail.

[0029] Combination Figure 1-Figure 6 As shown, an adjustable hook structure in this embodiment includes a hook assembly 10 and a lifting assembly 20, the hook assembly 10 includes a J-shaped hook 100, the hook 100 includes a vertical portion 180, a horizontal portion 102 and a tip portion 101, a hook groove 220 is formed between the vertical portion 180, the horizontal portion 102 and the tip portion 101, a sealing plate 120 for sealing the opening of the hook groove 220 is rotatably provided on the vertical portion 180, a liftable driving assembly is provided at the bottom of the hook groove 220, the driving assembly moves downward to drive the sealing plate 120 to rotate to seal the opening of the hook groove 220; the hook 100 can be lifted and lowered on the lifting assembly 20 through the adjusting assembly.

[0030] In actual use of this embodiment, the lifting assembly 20 is of existing structure, which includes a mounting frame 110 with a U-shaped cross section, a plurality of rotatable pulleys 123 are arranged in the mounting frame 110 through a rotating shaft, and the hook 100 is arranged on the lower end surface of the mounting frame 110 and can be raised and lowered through an adjustment assembly;

[0031] In this embodiment, the rope for binding the heavy object is hung in the hook groove 220. When the hook structure is being hoisted, the heavy object presses down the driving assembly due to its own weight, so that the driving assembly moves downward, and then when the hook structure is being hoisted, the heavy object automatically drives the sealing plate 120 to block the opening of the hook groove 220, so that the rope is not easy to escape from the hook groove 220. Compared with the existing ones, when the rope is hung in the hook groove 220 for hoisting, the sealing plate 120 can automatically block the opening of the hook groove 220, so that during the hoisting process, the sealing plate 120 can always block the opening of the hook groove 220, so that the rope is not easy to escape from the hook groove 220.

[0032] When the hook structure is not being hoisted, the driving assembly moves upward, so that the driving assembly can drive the sealing plate 120 to release the blockage of the hook slot 220, thereby facilitating the taking and placing of the hoisting rope in the hook slot 220;

[0033] Among them, through the setting of the adjustment component, the hook 100 can be raised and lowered on the lifting component 20, so that the length of the hook structure can be better adjusted, which is convenient for lifting heavy objects and improves the applicability of the hook structure.

[0034] Combination Figure 1-Figure 3 As shown, in the present embodiment, a mounting groove 160 is provided on one side of the sealing plate 120 along its length direction, and the vertical portion 180 is inserted into the mounting groove 160. A hinge rod 330 is provided at the opening position of the mounting groove 160, and the hinge rod 330 passes through the vertical portion 180 to realize the rotational installation of the sealing plate 120 on the vertical portion 180; a connecting mounting cavity 200 is provided in the vertical portion 180 and the horizontal portion 102, and the driving component includes a traction member provided in the mounting cavity 200 and a driving member provided in the hook groove 220, and the driving member drives the traction member to pull the sealing plate 120 to rotate.

[0035] In actual use, the installation groove 160 is opened on one side. Through the installation groove 160 and the hinge rod 330, the vertical portion 180 can be inserted into the installation groove 160, so that the sealing plate 120 can be rotatably installed on the hook 100, that is, the sealing plate 120 can be rotated to block the opening of the hook groove 220. At the same time, the sealing plate 120 can also be rotated away from the hook groove 220 to open the opening of the hook groove 220.

[0036] Among them, in the initial state, the driving member drives the traction member to drive the sealing plate 120 to rotate upward, so as to realize the opening of the sealing plate 120 at the opening of the hook groove 220. When the hook structure is hoisted, the driving member moves downward to drive the traction member to drive the sealing plate 120 to rotate downward, so that the sealing plate 120 can block the opening of the hook groove 220 to prevent the lifting rope from falling off from the hook groove 220.

[0037] Combination Figure 2-Figure 3 As shown, in this embodiment, the driving member includes a mounting block 210 that is lifted and lowered in the hook groove 220, the mounting block 210 is provided with a fixing column 230 that passes through the horizontal portion 102 and extends into the mounting cavity 200, the mounting cavity 200 is provided with a fixing block 250 that can be lifted and lowered and is connected to the lower end of the fixing column 230, and the mounting cavity 200 is provided with a spring 130 for pushing the mounting block 210 to move upward.

[0038] When the embodiment is actually used, the mounting block 210 moves downward and squeezes the spring 130, so that the spring 130 shrinks into the mounting cavity 200. When the mounting block 210 abuts against the bottom wall of the hook groove 220, the sealing plate 120 rotates downward and completes the blocking of the opening of the hook groove 220, so that the hanging rope is not easy to fall off from the opening of the hook groove 220. When the mounting block 210 stops squeezing the spring 130 downward, the spring 130 extends out of the mounting cavity 200 and pushes the mounting block 210 to move upward. At this time, the sealing plate 120 rotates upward and releases the blocking of the opening of the hook groove 220.

[0039] The lower end of the spring 130 is disposed in the mounting cavity 200 of the horizontal portion 102, and two springs 130 are disposed parallel to the vertical portion 180. The two springs 130 are respectively located on both sides of the fixing column 230, and the upper end of the spring 130 abuts against the lower end of the mounting block 210, thereby enabling the spring 130 to smoothly drive the mounting block 210 to smoothly rise and fall in the hook groove 220;

[0040] Among them, a groove is provided on the upper side surface of the mounting block 210, and the groove is used to hang a lifting rope. The side walls opposite to the groove are arranged in an arc shape, so that the lifting rope for binding heavy objects can slide along the arc surface to the center position of the bottom wall of the groove, so that the lifting rope can better pull down the mounting block 210; wherein, in order to make the mounting block 210 rise and fall smoothly in the hook groove 220, the side wall of the mounting block 210 slides and fits with the side wall of the hook groove 220.

[0041] The spring 130 is extended out of the installation cavity 200 in the horizontal portion 102, so that when the installation block 210 moves down to the side wall of the hook groove 220, the installation block 210 cannot move down again to squeeze the spring 130, so that the spring 130 can stretch upward to push the installation block 210 to move upward, thereby preferably avoiding the installation block 210 squeezing the spring 130 and causing it to completely shrink, resulting in the spring 130 being unable to stretch and push the installation block 210 to move upward;

[0042] The lower side wall of the installation cavity 200 in the horizontal portion 102 is opened, and a closure plate is provided at the opening. The installation cavity 200 in the horizontal portion 102 can be opened and closed by the closure plate, so that the drive assembly can be installed in the installation cavity 200.

[0043] The extended end of the spring 130 is connected to the lower side of the mounting block 210 by welding, and the other end of the spring 130 abuts against the side of the gusset plate;

[0044] In actual use, the opposite side walls of the fixing block 250 slide against the corresponding side walls of the installation, so that shaking is not easy to occur during the up and down movement of the installation block 210, so that the sealing plate 120 can rotate smoothly, so that the sealing plate 120 can better block or unblock the opening of the hook groove 220.

[0045] Combination Figure 4-Figure 6 As shown, in this embodiment, the traction member includes a mounting plate 300 relatively arranged on one side of the fixed block 250, and the two mounting plates 300 are connected by a connecting rod 310. Sliding grooves 150 are relatively arranged on the side walls opposite to the vertical portion 180, and a sliding rod 340 is arranged in the sliding groove 150. The sliding rod 340 passes through the sealing plate 120, and a connecting plate 320 is hingedly installed on the sliding rod 340. One end of the connecting plate 320 is hingedly connected to the connecting rod 310. The side walls opposite to the mounting groove 160 are relatively provided with sliding grooves 140 along their length direction, and the sliding grooves 140 are used for the sliding rod 340 to slide.

[0046] In actual use of this embodiment, the fixing block 250 moves downward to drive the mounting plate 300 to drive the connecting rod 310 to move downward, so that the connecting rod 310 drives the connecting plate 320 to move up and down in the mounting cavity 200. Since the sliding rod 340 can slide in the sliding groove 150 and the sliding groove 140, the lifting of the connecting plate 320 can drive the sealing plate 120 to rotate around the hinge rod 330, so that the sealing plate 120 can better block the opening of the hook groove 220.

[0047] The sliding groove 150 is arranged along the length direction of the vertical portion 180 , so that the sliding rod 340 can better drive the sealing plate 120 to rotate around the hinge rod 330 .

[0048] Combination Figure 4-Figure 6 As shown, in this embodiment, a lifting cavity 500 is provided in the vertical part 180 along its vertical direction, a lifting column 190 is provided on the lower side of the lifting assembly 20, and the lifting column 190 is extended into the lifting cavity 500, and a plurality of limiting holes 191 are evenly provided on the side wall of the lifting column 190, and the adjusting assembly includes a limiting rod 400 arranged on the vertical part 180, and the limiting rod 400 can be extended into the corresponding limiting hole 191.

[0049] In actual use of this embodiment, the limit rod 400 is inserted through the side wall of the vertical portion 180 into the corresponding limit hole 191, so that the hook 100 can be fixedly installed on the lifting column 190. When the height of the hook 100 needs to be adjusted, the limit rod 400 is inserted into the limit holes 191 at different heights, so that the hook 100 can be raised and lowered on the lifting column 190.

[0050] The lifting chamber 500 is provided so that the hook 100 can be installed on the lifting column 190, so that the hook 100 can slide on the lifting column 190, thereby enabling the hook 100 to be lifted and lowered on the lifting column 190;

[0051] In actual use, the side wall of the vertical portion 180 is fixedly connected with a locking block 170, the side wall of the locking block 170 is provided with a locking hole 600 for the limiting rod 400 to extend into, the limiting rod 400 is provided with a limiting block 620, the side wall of the locking hole 600 is provided with a limiting groove 610 along its circumference, and the side wall of the locking block 170 is provided with a notch 410 for the limiting block 620 to extend into the limiting groove 610 and slide in it;

[0052] Among them, when the limiting rod 400 passes through the side wall of the vertical part 180 and extends into the corresponding limiting hole 191, the limiting block 620 extends into the limiting groove 610 through the notch 410, and the limiting rod 400 is rotated so that the limiting block 620 can be rotated along the limiting groove 610 and be misaligned with the notch 410, so that the limiting groove 610 can limit the limiting block 620, and thus the limiting groove 610 can limit the limiting rod 400.

[0053] Working principle: When a heavy object needs to be lifted, the rope that ties the heavy object is hung on the mounting block 210 on the hook slot 220. When the hook structure is hoisted, the heavy object sinks due to its own weight, causing the rope to pull down the mounting block 210, so that the mounting block 210 moves downward and drives the slide bar 340 to slide in the slide slot 150, thereby causing the sealing plate 120 to block the opening of the hook slot 220. When the heavy object is placed on the ground, the rope stops pressing down the mounting block 210, causing the spring 130 to stretch and push the mounting block 210 upward, so that The sealing plate 120 is rotated away from the hook groove 220 to open the hook groove 220, which is convenient for taking and placing the lifting rope; when the length of the hook structure needs to be adjusted, the limit rod 400 is rotated to rotate the limit block 620 to the position of the slot 410, and the limit rod 400 is pulled out from the limit hole 191. By extending the limit rod 400 into the limit holes 191 of different heights and rotating the limit rod 400, the limit block 620 and the slot 410 are misaligned, so that the limit rod 400 is limited, thereby completing the lifting and lowering adjustment of the hook structure.

[0054] In short, the above is only a preferred embodiment of the present utility model, and all equivalent changes and modifications made according to the scope of the patent application of the present utility model should fall within the scope of the present utility model patent.

Claims

1. An adjustable hook structure, comprising a hook assembly (10) and a lifting assembly (20), characterized in that: The hook assembly (10) comprises a J-shaped hook (100), wherein the hook (100) comprises a vertical portion (180), a horizontal portion (102) and a tip portion (101), wherein a hook groove (220) is formed between the vertical portion (180), the horizontal portion (102) and the tip portion (101), wherein a sealing plate (120) is rotatably provided on the vertical portion (180) for sealing an opening of the hook groove (220), and a liftable driving assembly is provided at the bottom of the hook groove (220), wherein the driving assembly moves downward to drive the sealing plate (120) to rotate and seal the opening of the hook groove (220); the hook (100) is liftably provided on the lifting assembly (20) through an adjusting assembly.

2. The adjustable hook structure according to claim 1, characterized in that: A mounting groove (160) is provided on one side of the sealing plate (120) along its length direction, and the vertical portion (180) is inserted into the mounting groove (160). A hinge rod (330) is provided at the opening position of the mounting groove (160), and the hinge rod (330) passes through the vertical portion (180) to realize the rotational installation of the sealing plate (120) on the vertical portion (180); a connecting mounting cavity (200) is provided in the vertical portion (180) and the horizontal portion (102), and a driving component includes a traction member provided in the mounting cavity (200) and a driving member provided in the hook groove (220), and the driving member drives the traction member to pull the sealing plate (120) to rotate.

3. The adjustable hook structure according to claim 2, characterized in that: The driving member comprises a mounting block (210) which is lifted and arranged in the hook groove (220); a fixing column (230) which passes through the horizontal portion (102) and extends into the mounting cavity (200) is provided on the mounting block (210); a fixing block (250) which is liftable and connected to the lower end of the fixing column (230) is provided in the mounting cavity (200); and a spring (130) for pushing the mounting block (210) to move upward is provided in the mounting cavity (200).

4. The adjustable hook structure according to claim 3, characterized in that: The traction member includes a mounting plate (300) arranged on one side of the fixed block (250), the two mounting plates (300) are connected by a connecting rod (310), sliding grooves (150) are arranged on the opposite side walls of the vertical portion (180), a sliding rod (340) is arranged in the sliding groove (150), the sliding rod (340) passes through the sealing plate (120), a connecting plate (320) is hingedly installed on the sliding rod (340), one end of the connecting plate (320) is hingedly connected to the connecting rod (310), and a sliding groove (140) is arranged on the opposite side wall of the mounting groove (160) along its length direction, and the sliding groove (140) is used for the sliding rod (340) to slide.

5. The adjustable hook structure according to claim 1, characterized in that: A lifting cavity (500) is provided in the vertical portion (180) along its vertical direction, a lifting column (190) is provided on the lower side of the lifting assembly (20), the lifting column (190) extends into the lifting cavity (500), a plurality of limiting holes (191) are evenly provided on the side wall of the lifting column (190), and the adjustment assembly comprises a limiting rod (400) provided on the vertical portion (180), the limiting rod (400) passes through the side wall of the vertical portion (180) and extends into the corresponding limiting hole (191).

6. The adjustable hook structure according to claim 4, characterized in that: A locking block (170) is fixedly connected to the side wall of the vertical portion (180); a locking hole (600) is provided on the side wall of the locking block (170) for the limiting rod (400) to extend into; a limiting block (620) is provided on the limiting rod (400); a limiting groove (610) is provided in the locking block (170) along the axial direction of the limiting rod (400); and a notch (410) is provided on the side wall of the lock buckle for the limiting block (620) to extend into the limiting groove (610) and slide into.

7. The adjustable hook structure according to claim 4, characterized in that: A clasp plate that can be opened and closed is provided on the lower end surface of the hook (100), and one end of the spring (130) abuts against the side wall of the clasp plate.

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