Lifting hook structure convenient for unloading

Abstract

The utility model relates to the technical field of lifting, in particular to a lifting hook structure convenient for unloading, which comprises a hook body, a lifting frame, a release chain and a lifting device, the hook body comprises a connecting part and a material hanging part, the connecting part is rotatably connected with the lifting frame, the material hanging part is arranged below the connecting part, and the middle part of the material hanging part is inclined downwards to form an inclined downwards concave curved surface included angle-shaped lifting part; the upper surface of the lower part of the hanging part is a curved surface with a convex middle part; one end of the releasing chain is connected to the obliquely-concave part of the hanging part, and the other end of the releasing chain is connected to the lifting device. According to the utility model, the connecting part at the upper part of the hook body is rotationally connected to the hanging bracket, the obliquely concave part is connected to the release chain, the other end of the release chain is lifted through the lifting device, the release chain is straightened and the obliquely concave part of the hook body is driven to be lifted, and the connecting part is rotationally connected with the hanging bracket, so that the lifting part is lifted along with the release chain; and the lower end of the hanging part rotates downwards until the connecting structure located on the hoisting part slides out of the hook body, and unhooking and unloading are completed.

Description

TECHNICAL FIELD

[0001] The utility model relates to hoist material technology field, concretely relates to a hook structure convenient to unload. BACKGROUND

[0002] Hoisting refers to lifting by crane. The hoisting process is to connect the heavy object to the hook through the connecting structure, lift and move the hook by the crane, and then hoist and move the heavy object connected to the hook. The crane hoisting has the advantages of quickness and efficiency, safety and reliability, simple operation, strong adaptability, energy saving and environmental protection, and high efficiency.

[0003] The working process of the crane generally includes lifting, running, descending and returning to the original position. The lifting mechanism lifts the heavy object from the picking place through the picking device, moves the heavy object through the running, rotating or amplitude changing mechanism, and then returns to the original position after placing the heavy object at the designated place. After most of the existing cranes hoist and move the heavy object, the connecting structure is still hung on the hook after placing the heavy object at the target position, and the connecting structure needs to be manually removed. It needs to be taken out every time, which leads to low hoisting efficiency, waste of time and waste of manpower. SUMMARY

[0004] The utility model provides a kind of hook structure convenient to unload to reach the purpose of easy unhooking when hoisting object, and further save time manpower, improve hoisting efficiency.

[0005] To achieve the above purpose, the technical scheme of the utility model is to provide a kind of hook structure convenient to unload, and the innovation point is that: including hook body, hanger, chain and lifting device, the hook body includes connecting portion and hanging material part, the connecting portion and the hanger are rotatably connected, the hanging material part is arranged below the connecting portion, and the middle part is inclined downward concave, forming the curved surface angle of the hoisting part of inclined downward concave;The lower part of the hanging material part is horizontally arranged, and the upper surface is convex in the middle;The chain is connected to the inclined downward concave part of the hanging material part at one end, and connected to the lifting device at the other end;The hook body is integrally formed.

[0006] Further, the specific structure of the connecting portion of the hook body and the hanger is that: the hanger includes a latch and two parallel arranged hangers, the connecting portion of the hook body is arranged between the two hangers, the connecting portion is provided with a connecting hole, and the two hangers are respectively provided with a hanger hole corresponding to the position of the connecting hole;The latch includes a horizontally arranged pin shaft and a vertically arranged pin plate, and the pin shaft and the pin plate are connected to form an L-shaped latch, the pin plate can be detachably fixed outside one of the hangers, the pin shaft penetrates the connecting portion and the hanger through the connecting hole and the hanger hole, and the hook body can rotate on the pin shaft.

[0007] Furthermore, it also includes two side sleeves and a middle sleeve, the two side sleeves are welded in the two hanging holes respectively, the middle sleeve is welded in the connecting hole, the pin plate is detachably fixed to the outside of one of the hanging plates, the pin shaft passes through the side sleeves and the middle sleeve, and the hook body and the middle sleeve as a whole can rotate on the pin shaft.

[0008] Furthermore, it also includes a composite sleeve, which is movably connected to the middle sleeve, and the pin plate is detachably fixed to the outside of one of the hanging plates. The pin shaft passes through the side sleeve and the composite sleeve, and the hook body, the middle sleeve and the composite sleeve can rotate on the pin shaft as a whole.

[0009] Furthermore, the pin plate and the hanging plate are detachably fixed by bolts.

[0010] Furthermore, a decoupling hole is provided at a position obliquely concave downward in the middle of the hanging part, and one end of the decoupling chain is connected to the hanging part through the decoupling hole.

[0011] Furthermore, the thickness of the hook body is 2-3 cm.

[0012] Furthermore, the cross section of the lower end portion of the hanging portion is pointed.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] (1) The utility model provides a hook structure that is convenient for unloading. The connecting part at the upper part of the hook body is rotatably connected to the hanger, and the obliquely concave part is connected to the decoupling chain. When in use, the heavy object is hung on the hoisting part through the connecting structure (connecting rope or other connecting belt, etc.). When it is necessary to unhook and unload, the other end of the decoupling chain is lifted by the lifting device, the decoupling chain is straightened and the obliquely concave part of the hook body is lifted. Due to the rotating connection between the connecting part and the hanger, the hoisting part is lifted along with the decoupling chain, and the lower end of the hanging part is rotated downward until the connecting structure located at the hoisting part slides out of the hook body, completing automatic unhooking and unloading. There is no need for manual unhooking, which saves time and manpower and improves hoisting efficiency and safety.

[0015] (2) The inclined concave curved angled hoisting portion of the present invention can ensure the stability of the hoisting and prevent the connecting structure from sliding out of the hook body during the hoisting process, thereby providing high safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 The whole structure diagram of the hook structure convenient for unloading of the utility model.

[0018] Figure 2 The structure diagram of the hook body in the hook structure convenient for unloading of the utility model.

[0019] Figure 3 The connection structure expansion view of the hanger and the hook body in the embodiment 2 of the utility model.

[0020] Figure 4 The structure expansion view of the embodiment 4 of the hook structure convenient for unloading of the utility model.

[0021] Figure 5 The side view of the connection of the hook body and the hanger in the hook structure convenient for unloading of the utility model.

[0022] Wherein, 1-hook body, 11-connection part, 12-hanging material part, 121-hanging material upper part, 122-hanging material middle part, 123-hanging material lower part, 13-hoisting part, 2-hanger, 21-latch, 211-pin shaft, 212-pin plate, 22-hanging plate, 23-connection hole, 24-hanging hole, 25-side sleeve, 26-middle sleeve, 27-composite sleeve, 28-thread hole, 29-bolt, 3-unhooking, 4-lifting device, 5-connection structure, 6-unhooking hole. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] Embodiment 1

[0025] The embodiment provides a hook structure convenient for unloading, which comprises a hook body 1, a hanger 2, an unhooking 3 and a lifting device 4, the hook body 1 comprises a connection part 11 and a hanging material part 12, as shown in the figure, the connection part 11 and the hanger 2 are rotationally connected, the hanging material part 12 is arranged below the connection part 11, and the middle part is inclined downward and concave, forming a hoisting part 13 in the shape of curved surface with an angle, the hoisting part 13 in the shape of curved surface with an angle can ensure that the structure sleeved in the hoisting part 13 will not easily slide out of the hook body 1 during hoisting, ensuring the stability of hoisting and high safety. Figure 1 As shown in the figure, the lower part of the hanging material part 12 is horizontally arranged, and the upper surface is a curved surface with a convex middle part, Figure 2 As shown in the figure, the lower part of the hanging material part 12 is horizontally arranged, and the upper surface is a curved surface with a convex middle part, Figure 2The dashed line in the figure is to distinguish the upper part, the middle part and the lower part of the hooking part 12, and the upper part, the middle part and the lower part of the hooking part 12 in the embodiment are respectively hooking upper part 121, hooking middle part 122 and hooking lower part 123; the chain stripper 3 is connected to the obliquely downward recessed part of the hooking part 12 at one end and connected to the lifting device 4 at the other end; the hook body 1 is integrally formed.

[0026] The rest is the same as in Example 1.

[0027] The hook structure of the embodiment is convenient for unloading, the connecting part 11 of the hook body 1 is rotatably connected to the hanger 2, the obliquely downward recessed part is connected to the chain stripper 3, and in use, the heavy object is hung on the lifting part 13 through the connecting structure 5 (connecting rope, connecting steel wire or other connecting belt, etc.), when unloading is needed, the other end of the chain stripper 3 is lifted by the lifting device 4, the chain stripper 3 is straightened and the obliquely downward recessed part of the hook body 1 is lifted, due to the rotatable connection between the connecting part 11 and the hanger 2, the lifting part 13 is lifted with the chain stripper 3, the lower end (hooking lower part 123) of the hooking part 12 is rotated downward until the connecting structure 5 located on the lifting part 13 slides out of the hook body 1, and automatic unloading is completed, without manual unloading, time and manpower are saved, and lifting efficiency and safety are improved.

[0028] Example 2

[0029] The specific structure of the connecting part 11 of the hook body 1 and the hanger 2 in the embodiment is as shown in the figure: Figure 3 The hanger 2 includes a latch 21 and two hanger plates 22 arranged in parallel, the structures and distances of the two hanger plates 22 are fixed, that is, the hanger plates 22 are fixedly installed on the crane, and the specific installation structure belongs to the prior art and is not taken as the technical scheme content of the utility model. The hook body 1 is arranged between the two hanger plates 22, specifically, the connecting part 11 of the hook body 1 is arranged between the two hanger plates 22, a connecting hole 23 is arranged on the connecting part 11, and a hanger hole 24 is arranged on each of the two hanger plates 22 at a position corresponding to the connecting hole 23, that is, the connecting hole 23 and the hanger hole 24 are on the same straight line; the latch 21 includes a horizontally arranged pin shaft 211 and a vertically arranged pin plate 212, the pin shaft 211 and the pin plate 212 are connected to form an L-shaped latch 21, the pin plate 212 is detachably fixed to the outside of one of the hanger plates 22, the pin shaft 211 penetrates through the connecting part 11 and the hanger plate 22 through the connecting hole 23 and the hanger hole 24, and the hook body 1 can rotate on the pin shaft 211.

[0030] The rest is the same as in Example 1.

[0031] In the embodiment, the two hangers 22 are fixed, and the latch 21 is also fixed on one of the hangers 22, so that when the hook body 1 rotates on the pin shaft 211, the latch 21 and the hanger 22 are fixed and cannot be connected unstably, the pin shaft 211 is used for rotating the hook body 1, and the two hangers 22 are used for fixing and limiting the hook body 1 in rotation, so that the hook body 1 can stably rotate around the pin shaft 211.

[0032] In use, when the material needs to be unloaded, the lifting device 4 lifts the chain 3, further lifts the inclined lower recessed part of the hook body 1, that is, lifts the lifting part 13 formed by the inclined lower recessed part of the hook body 1, so that the opening part of the lifting part 13 is tilted downward, until the connecting structure 5 with the material lifted on the lifting part 13 slides out of the opening, the unhooking and unloading are completed, the unloading is convenient and labor-saving, and the lifting efficiency is improved.

[0033] Embodiment 3

[0034] The embodiment further includes two side sleeves 25 and a middle sleeve 26, the two side sleeves 25 are respectively welded in the two lifting holes 24, the middle sleeve 26 is welded in the connecting hole 23, the pin plate 212 is detachably fixed outside one of the hangers 22, the pin shaft 211 penetrates through the side sleeve 25 and the middle sleeve 26, and the hook body 1 and the middle sleeve 26 can rotate on the pin shaft 211.

[0035] The rest is the same as in embodiment 2.

[0036] The embodiment adds the middle sleeve 26 and the side sleeve 25 on the basis of embodiment 2, so that the connecting strength between the hanger 22, the hook body 1 and the latch 21 can be increased, the use stability and the connecting stability of the whole device can be increased, and the service life of the hook body 1 and the lifting frame 2 is improved.

[0037] Embodiment 4

[0038] The embodiment further includes a composite sleeve 27, the composite sleeve 27 is movably sleeved in the middle sleeve 26, as shown in Figure 4 and 5 the pin plate 212 is detachably fixed outside one of the hangers 22, the pin shaft 211 penetrates through the side sleeve 25 and the composite sleeve 27, and the hook body 1, the middle sleeve 26 and the composite sleeve 27 can rotate on the pin shaft 211.

[0039] The rest is the same as in embodiment 3.

[0040] The embodiment is based on the embodiment 3, and a composite sleeve 27 is arranged inside the middle sleeve 26, that is, between the middle sleeve 26 and the pin shaft 211. When unhooking, the hook body 1 needs to rotate on the pin shaft 211 to unhook and unload the heavy object, and the pin shaft 211 has a large friction force. The composite sleeve 27 can transfer part of the friction force to the composite sleeve 27 when rotating to unhook, and the composite sleeve 27 can be removed and replaced according to the situation. Compared with the friction of the pin shaft 211, it is more convenient to replace and use the composite sleeve 27.

[0041] Embodiment 5

[0042] The detachable and fixed manner of the pin plate 212 and the hanging plate 22 in the embodiment is bolted. The installation and disassembly are convenient. For example, Figure 3 and 4 The threaded hole 28 is arranged on one of the hanging plates 22, Figure 4 The threaded hole 28 is also arranged on the pin plate 212, Figure 1 and 5 The hanging plate 22 and the pin plate 212 are fixed by the bolt 29.

[0043] The rest is the same as the embodiment 2 or 3 or 4.

[0044] Embodiment 6

[0045] The middle part (hooking middle part) of the hooking part 12 in the embodiment is arranged with the unhooking hole 6, and one end of the chain 3 is connected to the hooking part 12 through the unhooking hole 6.

[0046] The rest is the same as the embodiment 1.

[0047] Embodiment 7

[0048] The thickness of the hook body 1 in the embodiment is 2-3 cm. The cross section of the lower end of the hooking part 12 (the end of the lower part of the hooking part) is sharp.

[0049] The rest is the same as the embodiment 1.

[0050] The sharp lower end of the hooking part 12 in the embodiment is more convenient for the hook body 1 to rotate to unhook and unload.

[0051] The above-described embodiments are only preferred embodiments of the utility model for description, and do not limit the design concept and scope of the utility model. Various modifications and improvements of the technical scheme of the utility model made by ordinary engineering technicians in the art shall fall within the protection scope of the utility model. The technical content claimed by the utility model has been recorded in the technical requirements.

Claims

1. A hook structure that facilitates unloading, characterized by: It includes a hook body, a hanger, a chain and a lifting device. The hook body includes a connecting part and a hanging part. The connecting part and the hanger are rotatably connected. The hanging part is arranged below the connecting part, and the middle part is obliquely concave to form a hanging part with an oblique concave curved surface angle; the lower part of the hanging part is arranged horizontally, and the upper surface is a curved surface with an upward convex middle; one end of the chain is connected to the obliquely concave part of the hanging part, and the other end is connected to the lifting device; the hook body is formed in one piece.

2. A hook structure for facilitating unloading according to claim 1, characterized in that: The specific structure of the connection between the connecting part of the hook body and the hanger is: the hanger includes a pin and two parallel hanging plates, the connecting part of the hook body is placed between the two hanging plates, the connecting part is provided with a connecting hole, and the two hanging plates are respectively provided with hanging holes at positions corresponding to the connecting holes; the pin includes a horizontally arranged pin shaft and a vertically arranged pin plate, the pin shaft and the pin plate are connected to form an L-shaped pin, the pin plate is detachably fixed to the outside of one of the hanging plates, the pin shaft passes through the connecting part and the hanging plate through the connecting hole and the hanging hole, and the hook body can rotate on the pin shaft.

3. A hook structure for facilitating unloading according to claim 2, characterized in that: It also includes two side sleeves and a middle sleeve. The two side sleeves are welded in two hanging holes respectively, and the middle sleeve is welded in the connecting hole. The pin plate is detachably fixed to the outside of one of the hanging plates. The pin shaft passes through the side sleeves and the middle sleeve. The hook body and the middle sleeve can rotate on the pin shaft as a whole.

4. A hook structure for facilitating unloading according to claim 3, characterized in that: It also includes a composite sleeve, which is movably sleeved in the middle sleeve, and the pin plate is detachably fixed to the outside of one of the hanging plates. The pin shaft passes through the side sleeve and the composite sleeve, and the hook body, the middle sleeve and the composite sleeve can rotate on the pin shaft as a whole.

5. A hook structure for facilitating unloading according to claim 2, 3 or 4, characterized in that: The pin plate and the hanging plate are detachably fixed in a manner of bolt fixing.

6. The hook structure for facilitating unloading according to claim 1, characterized in that: A decoupling hole is provided at a position obliquely concave downward in the middle of the hanging part, and one end of the decoupling chain is connected to the hanging part through the decoupling hole.

7. The hook structure for facilitating unloading according to claim 1, characterized in that: The thickness of the hook body is 2-3 cm.

8. The hook structure for facilitating unloading according to claim 7, characterized in that: The cross section of the lower end portion of the hanging portion is pointed.

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