A quick-release ton bag support device

Abstract

This utility model discloses a ton bag support device with rapid unhooking capability, including a support assembly and hook assemblies. The support assembly is a cubic steel frame structure with four columns, and four hook assemblies are respectively installed on the columns. Each hook assembly includes a drive arm, a load-bearing pin, a hook body, pin I, pin II, a traction arm, pin III, and a movable jaw. The hook body and the movable jaw are connected by the load-bearing pin, the hook body and the drive arm are connected by pin I, the drive arm and the traction arm are connected by pin II, and the traction arm and the movable jaw are connected by pin III, forming a linkage mechanism. The device opens and closes by rotating the movable jaw through the leverage of the drive arm. The movable jaw, with its arc-shaped clamping surface, forms a closed space with the hook body to stably suspend the ton bag. Pressing the drive arm quickly releases the self-locking mechanism, allowing the fully loaded ton bag to be unhooked. It features a stable and reliable structure, labor-saving operation, and high efficiency, effectively improving material transfer efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of ton bag material loading and unloading equipment, specifically relating to a support device that can be used for quick unhooking of fully loaded ton bags. Background Technology

[0002] A ton bag is a flexible transport packaging container. It is lifted by the four corner rings using hooks on a crane or forklifts, filled with material, and then lowered down, facilitating the transport of large quantities of bulk powdery materials. However, the lifting rings need to be manually removed during the unloading process, which impacts production efficiency.

[0003] Existing technologies generally employ mechanically driven unhooking solutions. One approach uses a cylinder to rotate a shaft, causing the hook to swing and unhook. While this automates the operation, its transmission mechanism involves multiple stages of mechanical linkage, including shafts and connecting rods, resulting in high structural complexity and increased maintenance costs. Another approach uses gravity-triggered unhooking, where a pulling mechanism works in conjunction with gravity to flip the hook. Although this reduces the complexity of the mechanical linkage, its unhooking effectiveness is significantly affected by the weight distribution of the ton bag, making it prone to unhooking failure due to insufficient flipping angle. Furthermore, some new unhooking fixtures utilize a split-type hinged hook structure, controlling the opening and closing of the movable jaws via a drive component. While this improves the self-adaptability of the hook assembly, the complex hinged system limits its load-bearing capacity, posing a risk of structural deformation, especially when dealing with overweight ton bags.

[0004] Therefore, there is an urgent need to develop a new type of ton bag support device that is simple and compact in structure, has high load-bearing reliability, is easy to operate, and has low cost, and can be quickly detached. Utility Model Content

[0005] To address the problems existing in the background technology, this utility model provides a ton bag support device that can quickly detach the hook, including a support assembly and a hook assembly; the support assembly includes four columns, and the hook assembly is respectively installed on the four columns of the support assembly; the hook assembly includes a hook body, a drive arm, a traction arm, and a movable jaw; the hook body and the movable jaw are connected by a load-bearing pin, and the hook body and the drive arm are connected by pin I; the drive arm, the traction arm, and the movable jaw form a linkage mechanism, wherein the drive arm and the traction arm form a first rotating joint through pin II, and the traction arm and the movable jaw form a second rotating joint through pin III.

[0006] Furthermore, the support component is a cubic steel frame structure.

[0007] Furthermore, the drive arm is a lever structure with a pressing free end, and its lever fulcrum is located at pin I.

[0008] Furthermore, the movable jaw is a metal component with an arc-shaped clamping surface, and its clamping surface forms a closed clamping space with the bearing surface of the hook body.

[0009] When the ton bag is fully loaded, this utility model device can quickly detach the hook from the ton bag lifting ring, which facilitates the subsequent transfer of materials by vehicles. It also features a simple structure, efficient and convenient operation, low cost, and high reliability in load-bearing and hook detachment. Attached Figure Description

[0010] Figure 1 This is an overall assembly drawing of the ton bag support device structure of this utility model;

[0011] Figure 2 This is a three-dimensional structural diagram of the hook assembly of this utility model;

[0012] Figure 3 This is a schematic diagram illustrating the working principle of the hook assembly of this utility model;

[0013] Reference numerals: 1. Hook assembly 1; 2. Support assembly 2; 3. Drive arm; 4. Load-bearing pin; 5. Hook body; 6. Pin I; 7. Pin II; 8. Traction arm; 9. Pin III; 10. Movable jaws. Detailed Implementation

[0014] The structure, working principle, and effects of this utility model will be further explained below with reference to the accompanying drawings.

[0015] The present invention provides a quick-release ton bag support device, such as... Figure 1 As shown, it includes four hook assemblies 1 and a support assembly 2. The support assembly 2 is a cubic steel frame structure, and each hook assembly 1 is installed on one of the four columns of the support assembly 2. Each hook assembly 1 includes a drive arm 3, a load-bearing pin 4, a hook body 5, pin I 6, pin II 7, a traction arm 8, pin III 9, and a movable jaw 10, as shown. Figure 2 As shown.

[0016] The hook body 5 is hinged to the movable jaw 10 via a load-bearing pin 4. The arc-shaped clamping surface of the movable jaw 10 and the load-bearing surface of the hook body 5 form a closed space for clamping the lifting ring of a ton bag. The drive arm 3, acting as a force-saving lever, has a free pressing end. Its middle end is hinged to the hook body 5 via pin I6, and its other end is rotatably connected to the traction arm 8 via pin II7. The end of the traction arm 8 is hinged to the movable jaw 10 via pin III9. Thus, the drive arm 3, the traction arm 8, and the movable jaw 10 together constitute a linkage mechanism. When the drive arm 3 is pressed, it rotates around the fulcrum of pin I6, which drives the traction arm 8 to swing via pin II7, and then drives the movable jaw 10 to rotate around the load-bearing pin 4 via pin III9, thereby opening and closing the clamping space.

[0017] The use of this utility model device has two states: when loading ton bags, the lifting ring of the ton bag is hung in the clamping space formed between the hook body 5 and the movable jaw 10. At this time, the movable jaw 10 remains closed under its own weight, and the hook assembly 1 forms a self-locking mechanism. Figure 3 As shown in (a), the four lifting rings of the ton bag are securely suspended by four hook assemblies 1, facilitating the loading of materials. When the ton bag is unloaded, the operator presses the lever to drive the free end of the arm 3 to rotate around pin I6, which in turn drives the traction arm 8 to rotate around pin II7, thereby causing the movable jaw 10 to rotate outward around the load-bearing pin 4. This opens the clamping space between the hook body 5 and the movable jaw 10. Figure 3 As shown in (b), the lifting rings of the ton bags automatically drop, allowing the fully loaded ton bags to detach from the support frame for easy subsequent transport. The entire process requires no manual removal of the lifting rings, making it particularly suitable for the rapid unhooking of ton bags under full load.

[0018] This invention achieves labor-saving operation through the lever structure of the drive arm 3, and uses a linkage mechanism to convert manual pressure into precise rotational action of the movable jaw 10, ensuring clamping stability and enabling one-click release. The cubic steel frame support component 2 provides a stable load-bearing foundation, and the arc-shaped clamping surface design effectively disperses the load stress on the ton bag lifting ring. The overall structure combines high efficiency and reliability, significantly improving material transfer efficiency.

[0019] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or substitute or modify some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A ton bag supporting device capable of quick unhooking, characterized in that, It includes a support assembly (2) and a hook assembly (1); the support assembly (2) includes four columns, and the hook assembly (1) is installed on the four columns of the support assembly (2); the hook assembly (1) includes a hook body (5), a drive arm (3), a traction arm (8) and a movable jaw (10); the hook body (5) and the movable jaw (10) are connected by a load-bearing pin (4), and the hook body (5) and the drive arm (3) are connected by a pin I (6); the drive arm (3), the traction arm (8) and the movable jaw (10) constitute a linkage mechanism, wherein the drive arm (3) and the traction arm (8) form a first rotating joint through a pin II (7), and the traction arm (8) and the movable jaw (10) form a second rotating joint through a pin III (9).

2. The ton bag support device according to claim 1, wherein The support component (2) is a cubic steel frame structure.

3. The ton bag support device of claim 1, wherein, The drive arm (3) is a lever structure with a pressing free end, and its lever fulcrum is located at pin I (6).

4. The ton bag support device of claim 1, wherein, The movable jaw (10) is a metal component with an arc-shaped clamping surface, and its clamping surface forms a closed clamping space with the bearing surface of the hook body (5).

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