Multi-functional hanger

Abstract

This utility model discloses a multi-functional lifting hook, relating to the field of engineering lifting equipment technology. The multi-functional lifting hook includes a lifting component comprising a lifting ring, a first hook, and a second hook. The lifting ring has a lifting hole. The first hook is connected to the lifting ring and extends horizontally, passing through the shaft hole of a tooling plate and abutting against the inner wall of the shaft hole. The second hook includes a horizontal portion and a bent portion. The horizontal portion is connected to the lifting ring, and the bent portion extends into a groove in the tooling plate, allowing the horizontal portion to abut against the outer wall of the groove. This utility model's technical solution uses a double-support structure formed by the first and second hooks, respectively adapting to tooling plates with shaft holes and grooves. This allows the hook to be used with tooling plates made of various materials such as all-iron, all-wood, iron-wood composite, or all-plastic, solving the problem that traditional single-structure hooks cannot accommodate multiple application scenarios.

Description

Technical Field

[0001] This utility model relates to the field of engineering lifting tools, and in particular to a multifunctional lifting hook. Background Technology

[0002] Currently, the tooling trays used for handling finished wire and cable products are mostly made of different materials such as all-iron, all-wood, iron-wood composite, or all-plastic. Their structures are generally circular, while existing hooks typically use an arc-shaped structure, with the contact area with the tooling tray mainly concentrated at the hook head. With the rapid development of the wire and cable industry, the length and cross-sectional area of ​​finished cables are constantly increasing, and the full-load weight of tooling trays has significantly increased, some reaching over 10 tons. Because tooling trays made of different materials differ in structural strength and stress distribution, traditional single-structure hooks cannot effectively adapt to various tooling trays, limiting their application in complex scenarios. Utility Model Content

[0003] The main purpose of this utility model is to propose a multifunctional lifting hook, which aims to solve the problem of how to improve the adaptability of existing lifting hooks in the lifting process of tooling plates of different materials.

[0004] To achieve the above objectives, this utility model proposes a multi-functional lifting hook, which includes:

[0005] The lifting component includes a lifting ring, a first hook, and a second hook;

[0006] The lifting ring is provided with a lifting hole;

[0007] The first hook is connected to the lifting ring, the first hook extends in the horizontal direction, and the first hook is used to pass through the shaft hole of the tooling plate and abut against the inner wall of the shaft hole of the tooling plate;

[0008] The second hook includes a horizontal portion and a bent portion. The horizontal portion is connected to the lifting ring, and the horizontal portion and the first hook are arranged at intervals along the circumference of the lifting ring. The bent portion is connected to the horizontal portion, and the bent portion is arranged at intervals with the lifting ring, so that the lifting ring, the horizontal portion and the bent portion form an upward-opening limiting groove. The bent portion is used to extend into the groove of the tooling tray, so that the horizontal portion can abut against the outer wall of the groove of the tooling tray.

[0009] In one embodiment, the first hook and the horizontal portion are respectively disposed on opposite sides of the lifting ring.

[0010] In one embodiment, the lifting ring includes a lifting part and a connecting part. The two sides of the connecting part are respectively a first side and a second side. The lifting part and the first hook are arranged vertically at intervals on the first side. An angle is formed between the lifting part and the connecting part. The lifting part is provided with the lifting hole. The horizontal part is provided on the second side.

[0011] In one embodiment, the included angle between the hoisting part and the connecting part is defined as A, then: 90° < A < 180°;

[0012] And / or,

[0013] The connection between the hoisting part and the connecting part is a rounded transition.

[0014] In one embodiment, the number of lifting components is n, and the thickness of each lifting component is defined as B, then: B≥32 / n.

[0015] In one embodiment, the number of lifting components is at least two, and the at least two lifting components are connected to each other.

[0016] In one embodiment, the end of the first hook away from the lifting ring is a guide end, the upper surface of the guide end is a horizontal plane, the lower surface of the guide end is an inclined plane, and the vertical distance between the inclined plane and the horizontal plane gradually decreases in the horizontal direction away from the lifting ring.

[0017] In one embodiment, the lifting hole is a waist-shaped hole.

[0018] In one embodiment, the end of the bent portion away from the horizontal portion is the insertion end, and the connection between the end face and the side face of the insertion end is a rounded transition.

[0019] In one embodiment, the connection between the first hook and the lifting ring is a rounded transition;

[0020] And / or,

[0021] The connection between the horizontal section and the lifting ring is a rounded transition.

[0022] In this embodiment of the utility model, the multi-functional hook can be used for the turnover operation of tooling trays of different materials in the wire and cable industry. The lifting ring is the connection center of the entire lifting component and the main path for load transfer. The lifting ring is provided with lifting holes for connection with external lifting equipment such as lifting chains or wire ropes. The first hook is fixedly connected to the lifting ring and extends horizontally to form a straight hook, which can be inserted into the shaft hole of the tooling tray and abut against the inner wall of the shaft hole of the tooling tray, thereby providing support for the tooling tray and realizing lifting. It is suitable for lifting operations of light-load tooling trays made of materials such as ironwood or all-plastic. The second hook... The hook includes a horizontal section and a bent section. The horizontal section, the bent section, and the lifting ring together form an upward-opening limiting groove, forming a U-shaped hook. The bent section can extend into the groove of the tooling tray so that the horizontal section can abut against the outer wall of the groove of the tooling tray. That is, the groove wall of the limiting groove of the second hook can form a snap-fit ​​structure with the groove of the tooling tray, so that the second hook can provide auxiliary support and anti-slip protection for the tooling tray. Compared with the straight hook of the first hook, the U-shaped hook of the second hook increases the contact area with the tooling tray, improves the safety and reliability of lifting, and is suitable for lifting heavy-duty tooling trays made of all-iron materials. In this embodiment, the horizontal section and the first hook are arranged at intervals along the circumference of the lifting ring, effectively avoiding spatial overlap or structural interference between the first and second hooks during lifting operations. This ensures that each hook works stably within its independent area, improving the overall structural coordination and reliability. Furthermore, the circumferentially spaced layout clearly distinguishes the first and second hooks in space, facilitating quick selection of appropriate lifting points by operators based on the tooling plate type, avoiding misoperation or repeated adjustments, thereby improving lifting efficiency. During lifting operations, the lifting chain can be passed through the lifting hole to connect and fix with the multi-functional hook. Then, the material and type of the tooling plate are determined, and the corresponding hook is selected. The straight hook passes through the central shaft hole of the tooling plate, and the U-shaped hook passes through the slot of the tooling plate. Finally, the external lifting equipment is raised to complete the turnover of the corresponding tooling plate. This utility model embodiment employs a first hook and a second hook to form a dual-support structure, which are respectively adapted to tooling trays with shaft holes and slots. This allows the hooks to be used with tooling trays made of various materials such as all-iron, all-wood, iron-wood composite, or all-plastic, solving the problem that traditional single-structure hooks cannot handle multiple application scenarios. Furthermore, the second hook increases the contact area with the tooling tray, improving the safety of the second hook when lifting heavy-duty tooling trays. The first hook and the second hook are arranged at intervals along the circumference of the lifting ring, allowing the lifting load to be distributed in different directions, effectively avoiding the problem of local stress concentration caused by a single contact area, and improving the overall load-bearing capacity and service life of the structure. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0024] Figure 1 This is a structural schematic diagram of an embodiment of the multifunctional hook of this utility model;

[0025] Figure 2 This is a schematic diagram of another perspective of an embodiment of the multifunctional hook of this utility model.

[0026] Explanation of icon numbers:

[0027] 100. Multi-functional hook; 1. Lifting component; 11. Lifting ring; 111. Lifting part; 1111. Lifting hole; 112. Connecting part; 1121. First side; 1122. Second side; 12. First hook; 121. Guide end; 1211. Horizontal plane; 1212. Inclined plane; 13. Second hook; 131. Horizontal part; 132. Bending part; 1321. Insertion end; 133. Limiting groove; 2. Pin.

[0028] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0030] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, and back), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0031] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0032] Currently, the tooling trays used for handling finished wire and cable products are mostly made of different materials such as all-iron, all-wood, iron-wood composite, or all-plastic. Their structures are generally circular, while existing hooks typically use an arc-shaped structure, with the contact area with the tooling tray mainly concentrated at the hook head. With the rapid development of the wire and cable industry, the length and cross-sectional area of ​​finished cables are constantly increasing, and the full-load weight of tooling trays has significantly increased, some reaching over 10 tons. Because tooling trays made of different materials differ in structural strength and stress distribution, traditional single-structure hooks cannot effectively adapt to various tooling trays, limiting their application in complex scenarios.

[0033] After careful study, the applicant found that the existing hooks have significant shortcomings in terms of adaptability, safety, and versatility. The tooling discs made of different materials vary significantly in terms of strength, rigidity, and surface friction characteristics. The existing hook structure is too simple to accommodate the lifting requirements of tooling discs made of different materials, resulting in limited application scenarios and the need for frequent changes of lifting tools, which affects efficiency and safety. Furthermore, because the contact area between the existing hook and the circular tooling disc is concentrated at the head of the hook, the small contact area leads to uneven local stress, posing a risk of stress concentration and a low safety factor, especially under heavy loads (such as 10 tons). In addition, as the length and cross-sectional area of ​​the cable increase, the weight of the tooling disc increases significantly. The existing hook structure design can no longer effectively ensure the safety and stability of the lifting process and lacks the ability to adjust key parameters such as contact area and stress distribution.

[0034] The main purpose of this utility model is to propose a multifunctional hook to solve the problem of how to improve the adaptability of existing hooks in the lifting process of tooling plates of different materials.

[0035] Please see Figure 1In one embodiment of this utility model, the multifunctional hook 100 includes a lifting component 1, which includes a lifting ring 11, a first hook 12, and a second hook 13. The lifting ring 11 has a lifting hole 1111. The first hook 12 is connected to the lifting ring 11 and extends horizontally. The first hook 12 passes through the shaft hole of the tooling disc and abuts against the inner wall of the shaft hole. The second hook 13 includes a horizontal portion 131 and a bent portion 132. The horizontal portion 131 is connected to the lifting ring 11, and the horizontal portion 131 and the first hook 12 are arranged at intervals along the circumference of the lifting ring 11. The bent portion 132 is connected to the horizontal portion 131, and the bent portion 132 is arranged at intervals with the lifting ring 11, so that the lifting ring 11, the horizontal portion 131 and the bent portion 132 surround to form an upward-opening limiting groove 133. The bent portion 132 is used to extend into the groove of the tooling tray so that the horizontal portion 131 can abut against the outer wall of the groove of the tooling tray.

[0036] In this embodiment of the utility model, the multi-functional hook 100 can be used for the turnover operation of tooling trays of different materials in the wire and cable industry. The lifting ring 11 is the connection center of the entire lifting component 1 and is the main path for load transfer. The lifting ring 11 is provided with a lifting hole 1111 for connecting with external lifting equipment such as lifting chains or wire ropes. The first hook 12 is fixedly connected to the lifting ring 11 and extends horizontally to form a straight hook. It can be inserted into the shaft hole of the tooling tray and abut against the inner wall of the shaft hole of the tooling tray, thereby providing support for the tooling tray and realizing lifting. It is suitable for lifting operations of light-load tooling trays made of materials such as ironwood or all-plastic. The second hook 13 includes a horizontal part 13. The bending part 132, the horizontal part 131, the bending part 132 and the lifting ring 11 surround and form an upward-opening limiting groove 133, forming a U-shaped hook. The bending part 132 can extend into the groove of the tooling plate so that the horizontal part 131 can abut against the outer wall of the groove of the tooling plate. That is, the groove wall of the limiting groove 133 of the second hook 13 can form a snap-fit ​​structure with the groove of the tooling plate so that the second hook 13 can provide auxiliary support and anti-slip protection for the tooling plate. Compared with the straight hook of the first hook 12, the U-shaped hook of the second hook 13 increases the contact area with the tooling plate and improves the safety and reliability of the lifting. It is suitable for lifting operations of heavy-duty tooling plates made of all-iron materials. In this embodiment, the horizontal part 131 and the first hook 12 are arranged circumferentially along the lifting ring 11, effectively avoiding spatial overlap or structural interference between the first hook 12 and the second hook 13 during lifting operations. This ensures that each hook works stably in its independent area, improving the overall structural coordination and reliability. Furthermore, the circumferentially spaced layout clearly distinguishes the first hook 12 and the second hook 13 in space, facilitating operators to quickly select appropriate lifting points based on the tooling plate type, avoiding misoperation or repeated adjustments, thereby improving lifting efficiency. During lifting operations, the lifting chain can be passed through the lifting hole 1111 to connect and fix it to the multi-functional hook 100. Then, the material and type of the tooling plate are determined, and the corresponding hook is selected. The straight hook passes through the central shaft hole of the tooling plate, and the U-shaped hook passes through the slot of the tooling plate. Finally, the external lifting equipment is raised to complete the turnover of the corresponding tooling plate.

[0037] The technical solution of this utility model adopts a double support structure by using a first hook 12 and a second hook 13, which are respectively adapted to tooling trays with shaft holes and slots. This allows the hooks to be used with tooling trays made of various materials such as all-iron, all-wood, iron-wood composite, or all-plastic, solving the problem that traditional single-structure hooks cannot meet the needs of multiple application scenarios. In addition, the second hook 13 is a U-shaped hook, which increases the contact area with the tooling tray and improves the safety of the second hook 13 when lifting heavy-duty tooling trays. The first hook 12 and the second hook 13 are arranged at intervals along the circumference of the lifting ring 11, so that the lifting load can be distributed in different directions, effectively avoiding the problem of local stress concentration caused by a single contact area, and improving the load-bearing capacity and service life of the overall structure.

[0038] In this embodiment, to improve lifting strength and installability, the contact length between the first hook 12 and the inner wall of the shaft hole of the tooling plate is not less than 50mm; since the depth of the groove of the tooling plate is not less than 30mm, the width of the horizontal part 131 on the second hook 13 is 50mm and the length is 32mm. Therefore, the contact area between the second hook 13 and the inner wall of the groove of the tooling plate is not less than 50mm × 32mm = 1600mm. 2 .

[0039] Please see Figure 1 In one embodiment, the first hook 12 and the horizontal part 131 are respectively disposed on opposite sides of the lifting ring 11. Specifically, the first hook 12 and the horizontal part 131 are respectively located on opposite sides of the lifting ring 11. The structure is relatively simple and straightforward, easy to manufacture and maintain, and more convenient to operate. Users can easily choose to use the straight hook on the left or the U-shaped hook on the right as needed. If the first hook 12 and the second hook 13 are not on opposite sides, more complex manufacturing processes or additional adjustment mechanisms may be required, which increases costs and difficulties and may also increase operational complexity. For example, the entire lifting component 1 may need to be rotated to find a suitable hook. Moreover, the first hook 12 and the second hook 13 are respectively located on opposite sides of the lifting ring 11, which can distribute the force generated during the lifting process more evenly, making the load during lifting more balanced, avoiding excessive pressure on one side and structural imbalance, thereby reducing local stress concentration and improving the safety and reliability of the overall structure.

[0040] Please see Figure 1 In one embodiment, the lifting ring 11 includes a lifting part 111 and a connecting part 112. The two sides of the connecting part 112 are respectively a first side 1121 and a second side 1122. The lifting part 111 and the first hook 12 are vertically spaced on the first side 1121, forming an angle between the lifting part 111 and the connecting part 112. The lifting part 111 is provided with a lifting hole 1111, and the horizontal part 131 is provided on the second side 1122. Specifically, the lifting part 111 is provided with a lifting hole 1111 for connecting with external lifting equipment, and the connecting part 112 is used to connect the lifting part 111, the first hook 12, and the second hook 131. The lifting part 111 and the first hook 12 are vertically spaced on the first side 1121 of the connecting part 112. During the lifting process, the first hook 12 tends to tilt downward due to the weight of the tooling plate, while the lifting part 111 tends to tilt upward due to the external lifting force. The two are subjected to opposite forces, but since they are set on the same side of the connecting part 112, they have a relatively coordinated deflection direction when subjected to force deformation. This effectively avoids the problem of tooling plate slippage caused by improper structural arrangement, which not only improves the overall force coordination of the hook, but also enhances the stability and safety during the lifting process.

[0041] Please see Figure 1 In one embodiment, the included angle between the lifting part 111 and the connecting part 112 is defined as A, then: 90° < A < 180°; and / or, the connection between the lifting part 111 and the connecting part 112 is a rounded transition; specifically, by controlling the included angle within the range of 90° < A < 180°, the force direction of the lifting part 111 can be made closer to vertically upward, which is beneficial to improving the stability of the hook during the lifting process, reducing the risk of eccentric loading, ensuring lifting safety, and also enabling the lifting part 111 to be tilted at a certain angle. The angle is extended to provide sufficient space for the connection and operation of external lifting equipment, improving the ease of operation and work efficiency during the lifting process. This angle design also ensures that the lifting part 111 and the first hook 12 maintain an appropriate spatial distance, preventing structural interference or force conflict due to their close proximity. This significantly improves the stability and reliability of the hook, especially in complex lifting environments. The angle between the lifting part 111 and the connecting part 112 can be selected according to actual needs; this embodiment does not limit this. In this embodiment, the angle A between the lifting part 111 and the connecting part 112 is 120°. The rounded transition structure between the lifting part 111 and the connecting part 112 not only facilitates cold-working and cutting but also effectively avoids the risk of material cracking caused by sharp corners during processing, improving product consistency and yield. It reduces fatigue damage caused by structural abrupt changes, significantly extending the service life of the hook, reducing maintenance costs, and improving the product's economy and practicality, especially in frequent lifting operations.

[0042] Please see Figure 2 In one embodiment, the number of lifting components 1 is n, and the thickness of each lifting component 1 is defined as B, then: B≥32 / n; specifically, by setting the relationship between the thickness B of the lifting component 1 and the number n as B≥32 / n, it is ensured that the overall thickness of the lifting component 1 is not less than 32mm, thereby meeting the load-bearing requirements under heavy load conditions when the full load can reach 10 tons, and improving the safety and reliability of the lifting process; at the same time, under the premise of meeting the minimum total thickness requirement, it is allowed to manufacture the lifting component 1 in multiple parts to form a multi-lifting component 1 structure, which helps to reduce the processing difficulty and material waste of a single lifting component 1, improve production efficiency, reduce manufacturing costs, and the multi-lifting component 1 structure can be disassembled and replaced according to actual needs, avoiding the resource waste caused by overall replacement, and is also conducive to later maintenance and functional expansion. The number of lifting components 1 can be selected according to actual needs, and this embodiment does not limit this. In this embodiment, there are two lifting components 1, so the thickness B of each lifting component 1 is ≥16mm. This thickness distribution method can adopt cold working cutting process, with a feed rate ≤0.5mm / r and a cutting speed ≤50m / min, thereby avoiding processing difficulties caused by excessive thickness, and at the same time preventing the heat-affected zone from adversely affecting the material strength.

[0043] According to one embodiment of the present invention, the number of lifting components 1 is one, the thickness B of the lifting component 1 is ≥32mm, the lifting component 1 adopts an integral molding structure with a thickness of not less than 32mm, which effectively avoids the weak connection problem that may exist in multi-part splicing structures, significantly improves the overall rigidity and load-bearing capacity of the hook, and has higher stability and reliability in long-term use. Moreover, the single structure does not require riveting, welding or multi-part assembly, reducing assembly steps and connection errors in the production process, and improving product consistency and manufacturing efficiency.

[0044] Please see Figure 1 In one embodiment, the number of lifting components 1 is at least two, and the at least two lifting components 1 are interconnected. Specifically, by interconnecting at least two lifting components 1, the overall thickness of the hook can be effectively increased, improving the rigidity and deformation resistance of the overall structure while meeting the minimum load-bearing thickness requirement. This is particularly suitable for heavy-duty lifting scenarios. Furthermore, the structure of the lifting components 1 reduces processing difficulty, adapts to cold working process requirements, and allows for simultaneous processing of multiple lifting components 1, thereby improving processing efficiency. Damaged parts can also be replaced according to actual needs without requiring complete replacement, improving product maintainability and economy. It also facilitates standardized production and inventory management. In this embodiment, the number of lifting components 1 is two, and both lifting components 1 are made of Q235 carbon structural steel. The two lifting components 1 can be riveted together at non-critical stress points using 5mm diameter pins 2, or connected by welding, screwing, or other methods to meet the strength requirements of the hook structure. This embodiment does not limit the connection method between the lifting components 1.

[0045] Please see Figure 1 In one embodiment, the end of the first hook 12 furthest from the lifting ring 11 is a guide end 121. The upper surface of the guide end 121 is a horizontal surface 1211, and the lower surface of the guide end 121 is an inclined surface 1212. The vertical distance between the inclined surface 1212 and the horizontal surface 1211 gradually decreases in the horizontal direction away from the lifting ring 11. Specifically, the lower surface of the guide end 121 is set as an inclined surface 1212, so that the overall size of the guide end 121 gradually decreases in the direction away from the lifting ring 11, forming a single-sided tapering structure. This allows the first hook 12 to have good self-centering and guiding functions when inserted into the shaft hole of the tooling plate, making it easier to operate, significantly reducing the difficulty of manual operation, and improving assembly efficiency. The design of the upper surface as a horizontal surface 1211 provides a stable bearing surface, which can maintain good contact with the inner wall of the shaft hole of the tooling plate during the lifting process, preventing displacement or slippage caused by uneven force, and improving the safety and reliability of the lifting operation.

[0046] Please see Figure 1In one embodiment, the lifting hole 1111 is an oblong hole. Specifically, since the weakest point of the multi-functional hook 100 is located at the lifting ring 11, the lifting hole 1111 is designed as an oblong hole structure. The oblong hole allows the lifting chain to pass through, providing a larger contact area and a more uniform force distribution. During long-term use, it effectively disperses the load, reduces local wear, and extends the overall service life of the hook. Furthermore, it improves the assembly adaptability and angle adjustment capability between the lifting component 1 and the external lifting device, effectively compensates for manufacturing and installation errors, and enhances the stability and safety of the lifting process. It is suitable for cable reel lifting operations under various complex working conditions. In this embodiment, the thickness of the lifting component 1 is 32mm, and the contact width between the lifting chain and the wall of the oblong hole is 30mm. Therefore, the contact area between the lifting chain and the wall of the oblong hole is 32mm × 30mm = 960mm². 2 The theoretical bearing capacity is 960mm. 2 ×235MPa=225.6kN. Even with a safety factor calculated based on a maximum weight of 10 tons, the safety factor = 225.6kN / 100kN = 2.256 > 2.0, which meets the standards and specifications. Furthermore, in this embodiment, a double-layer structure with two lifting components 1 is adopted. The theoretical strength of each lifting component 1 is 110.8kN. The double-layer structure can achieve redundant load bearing. When a single lifting component 1 has a local defect, the other layer can still bear more than half of the load, significantly improving the safety and reliability of the hook during use.

[0047] Please see Figure 1 In one embodiment, the end of the bent portion 132 away from the horizontal portion 131 is the insertion end 1321, and the connection between the end face and the side of the insertion end 1321 is a rounded transition. Specifically, the insertion end 1321 of the bent portion 132 is used to insert into the slot of the tooling tray. Its end face and the side are smoothly connected by a rounded transition, which can avoid scratching or damaging the tooling tray during hoisting. It is especially suitable for tooling trays made of soft materials such as wood and plastic, and enhances the universal adaptability of the hook to tooling trays of different materials.

[0048] Please see Figure 1 In one embodiment, the connection between the first hook 12 and the lifting ring 11 is a rounded transition; and / or, the connection between the horizontal part 131 and the lifting ring 11 is a rounded transition. Specifically, by setting the connection between the first hook 12 and the lifting ring 11 and the connection between the horizontal part 131 and the lifting ring 11 as a rounded transition structure, stress concentration is effectively reduced, structural strength and fatigue life are improved, and the safety and reliability of the hook in heavy-load or frequent lifting environments are enhanced. At the same time, it is also beneficial to improve manufacturability and product consistency.

[0049] The above description is merely an exemplary embodiment of the present utility model and does not limit the scope of protection of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present utility model.

Claims

1. A multifunctional lifting hook, characterized in that, The multi-functional hook includes: The lifting component includes a lifting ring, a first hook, and a second hook; The lifting ring is provided with a lifting hole; The first hook is connected to the lifting ring, the first hook extends in the horizontal direction, and the first hook is used to pass through the shaft hole of the tooling plate and abut against the inner wall of the shaft hole of the tooling plate; The second hook includes a horizontal portion and a bent portion. The horizontal portion is connected to the lifting ring, and the horizontal portion and the first hook are arranged at intervals along the circumference of the lifting ring. The bent portion is connected to the horizontal portion, and the bent portion is arranged at intervals with the lifting ring, so that the lifting ring, the horizontal portion and the bent portion form an upward-opening limiting groove. The bent portion is used to extend into the groove of the tooling tray, so that the horizontal portion can abut against the outer wall of the groove of the tooling tray.

2. The multifunctional hook as described in claim 1, characterized in that, The first hook and the horizontal part are respectively disposed on two opposite sides of the lifting ring.

3. The multi-functional hook as described in claim 2, characterized in that, The lifting ring includes a lifting part and a connecting part. The two sides of the connecting part are respectively a first side and a second side. The lifting part and the first hook are arranged vertically at intervals on the first side. The lifting part and the connecting part form an angle. The lifting part is provided with the lifting hole. The horizontal part is provided on the second side.

4. The multi-functional hook as described in claim 3, characterized in that, If the included angle between the hoisting part and the connecting part is defined as A, then: 90° < A < 180°; And / or, The connection between the hoisting part and the connecting part is a rounded transition.

5. The multifunctional hook as described in claim 1, characterized in that, The number of lifting components is n, and the thickness of each lifting component is defined as B. Then, B≥32 / n.

6. The multi-functional hook as described in claim 5, characterized in that, The number of lifting components is at least two, and the at least two lifting components are connected to each other.

7. The multifunctional hook as described in any one of claims 1 to 6, characterized in that, The end of the first hook away from the lifting ring is a guide end. The upper surface of the guide end is a horizontal plane, and the lower surface of the guide end is an inclined plane. The vertical distance between the inclined plane and the horizontal plane gradually decreases in the horizontal direction away from the lifting ring.

8. The multifunctional hook as described in any one of claims 1 to 6, characterized in that, The lifting hole is a waist-shaped hole.

9. The multifunctional hook as described in any one of claims 1 to 6, characterized in that, The end of the bent portion away from the horizontal portion is the insertion end, and the connection between the end face and the side face of the insertion end is a rounded transition.

10. The multifunctional hook as described in any one of claims 1 to 6, characterized in that, The connection between the first hook and the lifting ring is a rounded transition; And / or, The connection between the horizontal section and the lifting ring is a rounded transition.

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