Gravity type automatic unhooking lifting hook

Abstract

The utility model discloses a gravity type automatic unhooking lifting hook, which relates to the field of lifting equipment and comprises a lifting hook shell, the lower end of the lifting hook shell is connected with a lifting hook connecting plate through a rotating shaft, the bottom of the lifting hook connecting plate is fixedly connected with a lifting hook, the upper end of the lifting hook connecting plate is provided with a balancing weight, and two sides of the lifting hook shell are connected with locking components. A locking block is arranged between the locking assemblies, an adjusting handle in the locking assemblies is rotated to drive a movable plate to move inwards, an adjusting spring is compressed to apply larger elastic force to a locking ball, the locking assemblies can fix a lifting hook connecting plate with larger weight, and the adjusting spring pushes the adjusting ball to extrude and abut against the locking block to fix the lifting hook connecting plate. When a heavy object is hoisted, the lifting hook connecting plate rotates clockwise, the locking block is separated from the locking assembly, the lifting hook connecting plate is unlocked, after the heavy object is put down, the balancing weight drives the lifting hook connecting plate to rotate clockwise, automatic unhooking is completed by means of gravity, manual intervention is not needed, and safety and high efficiency are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of hoisting equipment, in particular to a gravity-type automatic-release hook. Background Art

[0002] Nowadays, the overall scale of the logistics industry is growing rapidly, and the cargo volume at port terminals has increased dramatically. Goods with ropes or hanging rings are hoisted by hooks, and ordinary hooks need to be manually unhooked during hoisting. During the operation, the operator is in the dangerous area of ​​the operation, which poses certain safety risks, and the efficiency of manual unhooking is low. For this reason, a gravity-type automatic unhooking hook is proposed, which automatically completes unhooking through gravity without manual intervention, reducing operational errors and labor intensity. Utility Model Content

[0003] In order to solve the above technical problems, a gravity-type automatic unhooking hook is provided. This technical solution solves the problem that ordinary hooks need to be manually unhooked during lifting, which poses certain safety risks and is inefficient.

[0004] In order to achieve the above purpose, the technical solution adopted by this utility model is:

[0005] A gravity-type automatic unhooking hook comprises a hook shell, the lower end of the hook shell is fixedly connected to a rotating shaft, a hook connecting plate is provided inside the hook shell, the lower end of the hook connecting plate is rotatably connected to the rotating shaft, the bottom of the hook connecting plate is fixedly connected to the hook, the upper end of the hook connecting plate is provided with a counterweight block, both sides of the hook shell are connected to locking assemblies, the two locking assemblies are arranged facing each other, a locking block is provided between the two locking assemblies, and one side of the locking block is fixedly connected to the surface of the hook connecting plate.

[0006] Preferably, the locking assembly includes an adjusting handle, a movable plate and an adjusting spring, the adjusting handle is arranged on one side of the locking assembly and is threadedly connected to the outer wall of the locking assembly, one end of the adjusting handle extends to the interior of the locking assembly and is rotatably connected to the movable plate, the movable plate is slidingly connected to the inner wall of the locking assembly, one end of the adjusting spring is fixedly connected to the side of the movable plate away from the adjusting handle, and the other end of the adjusting spring is provided with a locking ball, which is spherical.

[0007] Preferably, a through hole corresponding to the locking ball is opened on the opposite side of the locking assembly, and one end of the locking ball passes through the through hole and abuts against the locking block.

[0008] Preferably, positioning grooves matching the locking balls are provided on both sides of the locking block, the positioning grooves abut against the locking balls, and the locking block is narrow on the left and wide on the right.

[0009] Preferably, a plug-in slot is provided at the upper end of the hook connecting plate, the plug-in slot is plugged into the lower end of the counterweight block, a pin hole is provided on the side wall of the plug-in slot, a through hole matching the pin hole is provided at the lower end of the counterweight block, a fixing pin is plugged into the middle of the pin hole, and a locking ring is plugged into one end of the fixing pin.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] 1. A locking assembly is provided to fix the hook connecting plate when the hook is not lifting a heavy object. The locking assembly pushes the adjusting ball through the adjusting spring to squeeze and abut the positioning groove on the locking block to fix the hook connecting plate. When lifting a heavy object, the heavy object applies force to the hook. According to the principle of lever, the hook connecting plate rotates clockwise, and the locking block disengages from the locking assembly, so that the hook connecting plate is unlocked. After putting down the heavy object, the counterweight block drives the hook connecting plate to rotate clockwise according to the principle of lever, so that the opening of the hook tilts downward, the rope or ring slides automatically, and the automatic unhooking is completed by gravity. The structure is simple and reliable, which improves the lifting efficiency.

[0012] 2. The counterweight block is connected through the card slot and fixed with a fixing pin, which makes it easy to replace counterweight blocks of different weights to adapt to hoisting objects of different weights.

[0013] 3. An adjustment handle is provided in the locking assembly. The rotation of the adjustment handle drives the movable plate to move inward, and the adjustment spring compression applies a greater elastic force to the locking ball, so that the locking assembly can fix a heavier hook connecting plate, which is convenient for adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0016] Figure 3 for Figure 2 Schematic diagram of the enlarged structure at A in the middle;

[0017] Figure 4 This is a structural diagram of the hook connecting plate in the present utility model;

[0018] Figure 5 This is a schematic diagram of the state of the utility model when hanging heavy objects;

[0019] Figure 6 This is a schematic diagram of the state of the utility model when it is unhooked.

[0020] The numbers in the figure are:

[0021] 1. Hook housing; 11. Rotating shaft; 12. Locking assembly; 121. Adjusting handle; 122. Movable plate; 123. Adjusting spring; 124. Locking ball;

[0022] 2. Hook connecting plate; 21. Counterweight; 22. Locking block; 23. Positioning slot; 24. Insertion slot; 25. Pin hole; 26. Fixing pin; 27. Locking ring;

[0023] 3. Hook. DETAILED DESCRIPTION

[0024] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are merely examples, and those skilled in the art may conceive of other obvious variations.

[0025] like Figure 1 As shown, a gravity-type automatic unhooking hook comprises a hook shell 1, the lower end of the hook shell 1 is fixedly connected to a rotating shaft 11, a hook connecting plate 2 is arranged inside the hook shell 1, the lower end of the hook connecting plate 2 is rotatably connected to the rotating shaft 11, the hook connecting plate 2 can rotate along the rotating shaft 11, the bottom of the hook connecting plate 2 is fixedly connected to a hook 3, the upper end of the hook connecting plate 2 is provided with a counterweight block 21, the counterweight block 21 is used to increase the weight of the hook connecting plate 2, and counterweight blocks 21 of different weights can be replaced, locking components 12 are connected to both sides of the hook shell 1, the two locking components 12 are arranged facing each other, and a locking block 22 is arranged between the two locking components 12, one side of the locking block 22 is fixedly connected to the surface of the hook connecting plate 2, and when the locking block 22 reaches between the locking components 12, the locking component 12 clamps the locking block 22 to fix the hook connecting plate 2.

[0026] Please refer to Figure 2-4The locking assembly 12 includes an adjusting handle 121, a movable plate 122 and an adjusting spring 123. The adjusting handle 121 is arranged on one side of the locking assembly 12 and is threadedly connected to the outer wall of the locking assembly 12. One end of the adjusting handle 121 extends to the interior of the locking assembly 12 and is rotatably connected to the movable plate 122. The movable plate 122 is slidably connected to the inner wall of the locking assembly 12. One end of the adjusting spring 123 is fixedly connected to the side of the movable plate 122 away from the adjusting handle 121. The other end of the adjusting spring 123 is provided with a locking ball 124. The locking ball 124 is spherical. A through hole corresponding to the locking ball 124 is opened on the opposite side of the locking assembly 12. One end of the locking ball 124 passes through the through hole and abuts against the locking block 22. Both sides of the locking block 22 are opened A positioning groove 23 is provided that matches the locking ball 124, and the positioning groove 23 abuts the locking ball 124. The locking block 22 is set to be narrow on the left and wide on the right. When the locking block 22 enters between the locking assembly 12, the locking ball 124 is squeezed, and the locking ball 124 is pushed to both sides. Under the elastic force of the adjusting spring 123, the locking ball 124 is tightly pressed against the positioning groove 23 opened on the locking block 22, fixing the hook connecting plate 2. The locking ball 124 can be elastically adjusted by rotating the adjusting handle 121 to adapt to counterweights 21 of different weights. The adjusting handle 121 rotates to drive the movable plate 122 to move inward, and the adjusting spring 123 is compressed to apply a greater elastic force to the locking ball 124, so that the locking assembly 12 can fix the hook connecting plate 2 with a heavier weight.

[0027] Among them, the upper end of the hook connecting plate 2 is provided with a plug-in slot 24, and the lower end of the counterweight block 21 is provided with a corresponding plug-in block. The plug-in slot 24 is plugged into the lower end of the counterweight block 21, and the side wall of the plug-in slot 24 is provided with a pin hole 25. The lower end of the counterweight block 21 is provided with a through hole matching the pin hole 25. A fixing pin 26 is plugged into the middle of the pin hole 25, and a locking ring 27 is plugged into one end of the fixing pin 26. The locking ring 27 is a metal retaining spring, which is used to limit the fixing pin 26. Counterweight blocks 21 of different weights can be replaced according to different lifting weights.

[0028] like Figure 5 As shown, after the hook 3 is hung with a heavy object, the center of gravity of the hook 3, the hook connecting plate 2 and the counterweight 21 moves to the right according to the principle of leverage, causing the hook connecting plate 2 to rotate clockwise and the locking block 22 to disengage from the locking assembly 12.

[0029] like Figure 6 As shown, when the heavy object on the hook 3 is unloaded, the counterweight block 21 is heavier. According to the principle of leverage, the counterweight block 21 drops, driving the hook connecting plate 2 to rotate clockwise, causing the opening of the hook 3 to tilt downward, and the rope or ring automatically slides off, completing the unhooking.

[0030] To sum up, this solution sets a locking assembly 12 on the hook housing 1 to fix the hook connecting plate 2 when the hook 3 is not lifting a heavy object. When lifting a heavy object, the heavy object applies a force to the hook 3. According to the principle of leverage, the hook connecting plate 2 rotates clockwise, and the locking block 22 disengages from the locking assembly 12, so that the hook connecting plate 2 is unlocked. After the heavy object is lowered, the counterweight block 21 drives the hook connecting plate 2 to rotate clockwise according to the principle of leverage, so that the opening of the hook 3 tilts downward, the rope or ring automatically slides down, and the automatic unhooking is completed. The structure is simple and reliable, and the lifting efficiency is improved.

[0031] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions merely illustrate the principles of the present invention. Various changes and improvements are possible without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed for the present invention is defined by the appended claims and their equivalents.

Claims

1. A gravity type automatic unhooking hook, characterized by: The invention comprises a hook shell (1), the lower end of the hook shell (1) is fixedly connected to a rotating shaft (11), a hook connecting plate (2) is arranged inside the hook shell (1), the lower end of the hook connecting plate (2) is rotatably connected to the rotating shaft (11), the bottom of the hook connecting plate (2) is fixedly connected to a hook (3), the upper end of the hook connecting plate (2) is provided with a counterweight (21), both sides of the hook shell (1) are connected to locking components (12), the two locking components (12) are arranged facing each other, a locking block (22) is arranged between the two locking components (12), and one side of the locking block (22) is fixedly connected to the surface of the hook connecting plate (2).

2. A gravity-type automatic unhooking hook according to claim 1, characterized in that: The locking assembly (12) comprises an adjusting handle (121), a movable plate (122) and an adjusting spring (123); the adjusting handle (121) is arranged on one side of the locking assembly (12) and is threadedly connected to the outer wall of the locking assembly (12); one end of the adjusting handle (121) extends to the interior of the locking assembly (12) and is rotatably connected to the movable plate (122); the movable plate (122) is slidably connected to the inner wall of the locking assembly (12); one end of the adjusting spring (123) is fixedly connected to a side of the movable plate (122) away from the adjusting handle (121); the other end of the adjusting spring (123) is provided with a locking ball (124); and the locking ball (124) is spherical.

3. The gravity-type automatic unhooking hook according to claim 1, characterized in that: A through hole corresponding to the locking ball (124) is provided on the opposite side of the locking assembly (12), and one end of the locking ball (124) passes through the through hole and abuts against the locking block (22).

4. The gravity-type automatic unhooking hook according to claim 3, characterized in that: Both sides of the locking block (22) are provided with positioning grooves (23) matching the locking balls (124), the positioning grooves (23) abut against the locking balls (124), and the locking block (22) is narrow on the left and wide on the right.

5. The gravity-type automatic unhooking hook according to claim 1, characterized in that: The upper end of the hook connecting plate (2) is provided with an inserting slot (24), the inserting slot (24) is inserted into the lower end of the counterweight (21), the side wall of the inserting slot (24) is provided with a pin hole (25), the lower end of the counterweight (21) is provided with a through hole matching the pin hole (25), the middle of the pin hole (25) is inserted with a fixing pin (26), and one end of the fixing pin (26) is inserted with a locking ring (27).

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