Lifting hook device and forklift
By designing a hook device with multiple connecting arms and hook assemblies, the problems of low efficiency and poor adaptability of traditional hook devices when lifting light goods are solved, realizing efficient and stable multi-cargo lifting and adapting to the needs of goods of different specifications.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XINYI ENVIRONMENTAL PROTECTION SPECIAL GLASS JIANGMEN
- Filing Date
- 2025-05-26
- Publication Date
- 2026-05-22
AI Technical Summary
Traditional forklift hook devices are inefficient when lifting light goods and are difficult to adapt to goods of different sizes, resulting in frequent changes of lifting devices, which affects operational efficiency and stability.
Design a hook device including multiple connecting arms and hook assemblies arranged at intervals around a fixed base. The connecting arms are provided with multiple connecting structures, and the hook assemblies can be connected at different positions to adapt to goods of different specifications and form a stable polygonal support frame.
It improves hoisting efficiency and stability, enables the simultaneous hoisting of multiple goods, adapts to goods of different specifications, reduces frequent hoisting changes, shortens operation time, and reduces pollutant emissions.
Smart Images
Figure CN224266293U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of forklift technology, and particularly relates to hook devices and forklifts. Background Technology
[0002] Currently, forklifts are commonly used for handling goods in many industries in China, while cranes are commonly used for lifting. Forklifts are favored by users due to their powerful horsepower and flexible operation. When transporting goods, forklifts insert their forks into the bottom of the goods and then lift them up for transport. For some goods that can be placed directly on the outdoor ground, when there is no other lifting equipment available, forklifts are the only option for handling. Forklifts are suitable for transporting large goods by inserting their forks into the bottom of the goods and then lifting them up. For dense, small goods, lifting devices are generally used. Specifically, the goods are secured to a hook device, and then the forks lift the hook device to lift the goods for transport. As a core handling equipment, the load capacity, safety, and operational efficiency of the forklift's hook device directly affect the work efficiency.
[0003] However, traditional forklift hook devices generally adopt a design with a single connecting arm and a fixed hook, which has significant drawbacks in practical applications. For example, the lifting efficiency is low for goods that are not heavy but have the same volume, and the load adjustment capacity is insufficient. Traditional hooks usually only have a single hook hole at the end of the connecting arm, which limits the number of goods that can be lifted at one time. Moreover, all goods, regardless of weight or size, must be lifted through the same position. For light goods, although the hook hole is strong enough, the short lever arm limits the working radius and cannot be adapted to large-sized goods. This forces the frequent change of special lifting tools during operation, resulting in low lifting efficiency. Utility Model Content
[0004] The purpose of this application is to provide a hook device that aims to solve the problems of improving work efficiency and hoisting stability.
[0005] To achieve the above objectives, the technical solution adopted in this application is as follows:
[0006] In a first aspect, a hook device is provided for use in a hoisting mechanism. The hook device is used to hoist a target component. The hook device includes a fixed base connected to the hoisting mechanism, a connecting arm connected to the fixed base, and a hook assembly for suspending the target component. Multiple connecting arms and hook assemblies are arranged, with each connecting arm arranged circumferentially around the fixed base. Each hook assembly is connected to each connecting arm. Each connecting arm includes a main body connected to the fixed base and extending along a predetermined direction, and a connecting structure disposed on the main body. Multiple connecting structures are arranged, with each connecting structure arranged circumferentially along the predetermined direction. One of the multiple connecting structures disposed on the same main body is detachably connected to the hook assembly.
[0007] In some embodiments, the included angle between any two adjacent connecting arms is equal.
[0008] In some embodiments, the distance between any two adjacent connection structures on the same main body is equal.
[0009] In some embodiments, the hook assembly includes a hook body for hooking the target component and a connector connected to the hook body, the connector being detachably connected to the connection structure.
[0010] In some embodiments, the connection structure is a connection hole that penetrates the main body portion.
[0011] In some embodiments, the hook assembly further includes a load-bearing strap, the target component is provided with a hanging ear, the load-bearing strap passes through the hanging ear, and both ends of the load-bearing strap are respectively wrapped around and fixed to the hook body.
[0012] In some embodiments, the hook body includes a hanging ring portion connected to the connector and a hook portion connected to the bottom of the hanging ring portion. The hanging ring portion is a ring-shaped structure. One end of the load-bearing strap passes through the inner cavity of the hanging ring portion and is wrapped around and fixed to the hanging ring portion. The other end of the load-bearing strap is hung on the hook portion.
[0013] In some embodiments, the hook device further includes a reinforcing structure disposed between two adjacent connecting arms, with both ends of the reinforcing structure connected to the two adjacent connecting arms respectively.
[0014] In some embodiments, the mounting base is provided with mounting holes for mounting the mounting base to the hoisting mechanism.
[0015] Secondly, a forklift is provided that includes the hook device described above.
[0016] The beneficial effects of this application are as follows: The hook device provided in this application embodiment, by setting multiple connecting arms and hook assemblies arranged at intervals around the fixed base, can simultaneously lift multiple target components, thereby improving work efficiency. Moreover, multiple connecting arms are fixed together at the same connection position, which can form a stable polygonal support frame, which can maintain balance during lifting, thereby improving the stability of lifting target components. In addition, by arranging multiple connection structures on the connecting arms, the hook assemblies can be connected to multiple positions on the connecting arms. The hook assemblies closer to the fixed base can carry smaller target components, while the hook assemblies farther from the fixed base can carry larger target components, thereby adapting to target components of different specifications, avoiding frequent changes of the hook device during lifting, and further improving work efficiency. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or exemplary technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the hook device provided in the embodiments of this application;
[0019] Figure 2 yes Figure 1 A top-view structural diagram;
[0020] Figure 3 yes Figure 1 A schematic diagram of the structure of the fixed base and connecting arm;
[0021] Figure 4 yes Figure 1 A magnified structural diagram of part A in the middle;
[0022] Figure 5 yes Figure 1 A structural diagram from another perspective.
[0023] The following are the labeling elements in the figure:
[0024] 10. Fixing base; 11. Mounting hole; 20. Connecting arm; 21. Main body; 22. Connecting structure; 30. Hook assembly; 31. Connector; 32. Hook body; 321. Hanging ring; 322. Hook; 33. Load-bearing belt; 40. Reinforcing structure. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0026] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0028] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0029] Please see Figures 1 to 5This application provides a hook device for use in a hoisting mechanism. The hook device is used to hoist a target component. The hook device includes a fixed base 10 connected to the hoisting mechanism, a connecting arm 20 connected to the fixed base 10, and a hook assembly 30 for suspending the target component. Multiple connecting arms 20 and hook assemblies 30 are arranged. Each connecting arm 20 is arranged circumferentially around the fixed base 10. Each hook assembly 30 is connected to each connecting arm 20. The connecting arm 20 includes a main body 21 connected to the fixed base 10 and extending along a preset direction a, and a connecting structure 22 provided on the main body 21. Multiple connecting structures 22 are arranged, and each connecting structure 22 is arranged at intervals along the preset direction a. One of the multiple connecting structures 22 provided on the same main body 21 is detachably connected to the hook assembly 30.
[0030] Understandably, the hook device in this embodiment can be connected to the boom of the lifting mechanism. The hook device lifts the target component and can move with the boom, thereby enabling the target component to move with the boom. Furthermore, the target component in this embodiment can be cargo that needs to be transported, such as bagged stones or sponges.
[0031] In addition, in this embodiment of the application, the main body 21 of the connecting arm 20 extends along a preset direction a, which is specifically along the horizontal direction, and each connecting arm 20 is located on the same horizontal plane, so that the hoisting state of each connecting arm 20 can be kept consistent.
[0032] In this embodiment, the number of connecting arms 20 and hook assemblies 30 are equal, and each hook assembly 30 corresponds to one connecting arm 20. Therefore, each connecting arm 20 can lift the target component, thereby enabling the simultaneous lifting of multiple target components. Specifically, the target components lifted on each connecting arm 20 will not be too heavy and their volumes will be approximately equal, thus avoiding multiple target components exceeding the load capacity limit of the hook device.
[0033] In this embodiment, multiple connecting structures 22 located on the same main body 21 are detachably connected to the hook assembly 30. For large, lightweight goods, the hook assembly 30 can be connected to the connecting structure 22 on the connecting arm 20 away from the fixed seat 10, thereby extending the operating radius and facilitating the loading and unloading of large goods. For large target components, the hook assembly 30 can be connected to the connecting structure 22 on the connecting arm 20 away from the fixed seat 10, so that the target components suspended by each hook assembly 30 abut against each other, preventing the target components from swaying during hoisting. For smaller target components, the hook assembly 30 can be connected to the connecting structure 22 on the connecting arm 20 close to the fixed seat 10.
[0034] The hook device provided in this application embodiment, by setting multiple connecting arms 20 and hook assemblies 30 arranged at intervals around the fixed base 10, can simultaneously lift multiple target components, thereby improving work efficiency. Furthermore, the multiple connecting arms 20, fixed together at the same connection point, can form a stable polygonal support frame, maintaining balance during lifting and thus improving the stability of the target component lifting. In addition, by arranging multiple connecting structures 22 on the connecting arms 20, the hook assemblies 30 can be connected to multiple positions on the connecting arms 20. Hook assemblies 30 closer to the fixed base 10 can bear smaller target components, while hook assemblies 30 farther from the fixed base 10 can bear larger target components, thus adapting to target components of different specifications and avoiding frequent changes of the hook device during lifting, thereby further improving work efficiency.
[0035] In addition, by improving operational efficiency, the operating time of the hoisting mechanism can be effectively shortened, thereby reducing pollutant emissions, which is conducive to environmental protection and achieving green environmental protection.
[0036] In some embodiments, the included angle between any two adjacent connecting arms 20 is equal, that is, the connecting arms 20 are radially and uniformly distributed, so that each connecting arm 20 forms a symmetrical layout with equal included angles. During hoisting, the load is evenly distributed to each arm through the center point, avoiding overload of a single arm, further improving the stability of hoisting, and ensuring that the moment of inertia of the hook device is consistent in any direction. During hoisting rotation, the centrifugal force is evenly applied to each connecting arm 20, suppressing the risk of swaying.
[0037] Specifically, this embodiment of the application provides four connecting arms 20, and adjacent connecting arms 20 are perpendicular to each other. Of course, in other possible implementations, the number of connecting arms 20 may be three, five, six, seven or more, and this embodiment of the application does not limit the specific number of connecting arms 20.
[0038] In some embodiments, the fixing base 10 and the connecting arm 20 can be an integral structure, that is, the fixing base 10 and the connecting arm 20 can be integrally formed, thereby further improving the structural strength of the hook device. The fixing base 10 and the connecting arm 20 are made of high-strength steel. Optionally, the material of the fixing base 10 and the connecting arm 20 is low-alloy high-strength structural steel, such as Q420 steel or Q460 steel. Of course, the material of the fixing base 10 and the connecting arm 20 can also be medium-high alloy ultra-high strength steel or maraging steel, etc. Specifically, low-alloy quenched and tempered steel (such as 30CrMnSiA) or maraging steel (18Ni series) can be selected to balance strength and toughness.
[0039] In some embodiments, the distance between each connecting structure 22 located on the same main body 21 is equal, that is, the connecting structures 22 on the connecting arm 20 are arranged at equal intervals, so that the bending moment distribution of the connecting arm 20 decreases in a stepwise manner, avoiding sudden changes in local stress, significantly reducing the risk of metal fatigue, and allowing operators to quickly select the connecting structure 22 to match the target component of the corresponding weight based on experience without measurement, thereby shortening the connection time and reducing human judgment errors.
[0040] In some embodiments, each equidistant spacing on the connecting arm 20 can correspond to a fixed load level, such as each 0.5-meter spacing representing a 500kg load capacity. By using color or numerical markings, operators can intuitively match the weight of the goods, thereby reducing the overload accident rate, achieving load classification, and effectively improving safety.
[0041] Optionally, the number of connection structures 22 is two. Of course, in other possible implementations, the number of connection structures 22 may also be three, four, five or more, and the specific number of connection structures 22 is not uniquely limited in this application embodiment.
[0042] In some embodiments, the hook assembly 30 includes a hook body 32 for attaching a target component and a connector 31 connected to the hook body 32. The connector 31 is detachably connected to the connecting structure 22. By providing the connector 31, when the hook body 32 is worn out or accidentally damaged, only the connector 31 needs to be removed to replace the hook body 32 separately, without having to discard the entire connecting arm 20, thereby improving the convenience of maintenance.
[0043] In some embodiments, the connecting structure 22 is a connecting hole that penetrates the main body 21. Designing the connecting structure 22 as a connecting hole simplifies the manufacturing process, improves processing efficiency, and enables low-cost manufacturing. Optionally, the connecting structure 22 can be at least one of a through hole, a slot, or a snap-fit. By providing multiple connecting holes, different connecting holes can be used in rotation during frequent lifting of heavy objects, avoiding metal fatigue or concentrated wear caused by long-term load-bearing on a single hole.
[0044] Optionally, the connector 31 is a lifting ring. The connecting structure 22 is designed as a connecting hole, and the lifting ring is used as the connector 31. After the lifting ring passes through the connecting hole, a fully closed loop structure is formed. Compared with an open hook, it can eliminate the risk of accidental disengagement caused by the shaking of the target component. In addition, the lifting ring slides with a small displacement within the hole wall of the connecting hole, which can automatically adjust the center of gravity of the target component in real time and reduce manual reset operations.
[0045] In some embodiments, the hook assembly 30 further includes a load-bearing strap 33. The target component has a hanging lug, and the load-bearing strap 33 passes through the hanging lug. Both ends of the load-bearing strap 33 are respectively wrapped around and fixed to the hook body 32. The load-bearing strap 33 passes through the hanging lug of the target component and is wrapped around and fixed to the hook body 32, thus forming a closed-loop structure, effectively avoiding the risk of one-sided slippage of the target component due to swaying during hoisting. Furthermore, the length of the load-bearing strap 33 can be freely adjusted according to the position of the hanging lug of the target component, adapting to target components of different heights and sizes, improving adaptability and compatibility. In addition, the load-bearing strap 33 is a consumable component that can be replaced separately, avoiding the complete scrapping of traditional rigid hooks due to long-term wear, and reducing maintenance costs.
[0046] Optionally, the material of the load-bearing belt 33 can be steel cable or high-strength nylon belt, etc. The specific material of the load-bearing belt 33 is not limited in this application embodiment, as long as it can ensure sufficient strength and be able to support the target component.
[0047] In some embodiments, the hook body 32 includes a hanging ring portion 321 connected to the connector 31 and a hook portion 322 connected to the bottom of the hanging ring portion 321. The hanging ring portion 321 has a ring-shaped structure. One end of the load-bearing strap 33 passes through the inner cavity of the hanging ring portion 321 and is wrapped around and fixed to the hanging ring portion 321. The other end of the load-bearing strap 33 is hung on the hook portion 322. By wrapping and fixing one end of the load-bearing strap 33 to the hanging ring portion 321 and hanging the other end on the hook portion 322, the load-bearing strap 33 can be quickly assembled and disassembled, thereby improving the efficiency of assembly and disassembly.
[0048] In some embodiments, the hook device further includes a reinforcing structure 40 disposed between two adjacent connecting arms 20, with both ends of the reinforcing structure 40 connected to the two adjacent connecting arms 20 respectively.
[0049] Optionally, the reinforcing structure 40 is a reinforcing rib, which can be a triangular plate-like structure or a strip-like structure, with its two ends welded to the sidewalls of two adjacent connecting arms 20, thereby further enhancing the connection between the connecting arms 20. In other possible embodiments, the reinforcing structure 40 can also be fixed between two adjacent connecting arms 20 by riveting or detachable fasteners.
[0050] In some embodiments, the mounting base 10 is provided with a mounting hole 11 for mounting the mounting base 10 to the hoisting mechanism. By providing the mounting hole 11, the mounting base 10 can be quickly hoisted to the hoisting mechanism. The hoisting mechanism may include a hook, which passes through the mounting hole 11, thereby realizing the installation of the entire hook device, improving installation efficiency. Furthermore, the machining method of the mounting hole 11 is simple, which can improve machining efficiency.
[0051] This utility model also proposes a forklift, which includes a hook device. The specific structure of the hook device is as described in the above embodiments. Since this forklift adopts all the technical solutions of all the above embodiments, it also has all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.
[0052] In summary, the hook device provided in this application embodiment, by setting multiple connecting arms 20 and hook assemblies 30 arranged at intervals around the fixed base 10, can simultaneously lift multiple target components, thereby improving work efficiency. Furthermore, the multiple connecting arms 20, fixed together at the same connection point, can form a stable polygonal support frame, maintaining balance during lifting and thus improving the stability of the target component lifting. Additionally, by arranging multiple connecting structures 22 on the connecting arms 20, the hook assemblies 30 can be connected to multiple positions on the connecting arms 20. Hook assemblies 30 closer to the fixed base 10 can bear smaller target components, while hook assemblies 30 farther from the fixed base 10 can bear larger target components, thus adapting to target components of different specifications and avoiding frequent changes to the hook device during lifting, thereby further improving work efficiency.
[0053] The above are merely optional embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.
Claims
1. A lifting hook device applied to a lifting mechanism, the lifting hook device being used for lifting a target component, characterized in that, The hook device includes a fixed base (10) connected to the hoisting mechanism, a connecting arm (20) connected to the fixed base (10), and a hook assembly (30) for suspending the target component. Multiple connecting arms (20) and hook assemblies (30) are arranged. Each connecting arm (20) is arranged circumferentially around the fixed base (10). Each hook assembly (30) is connected to each connecting arm (20). Each connecting arm (20) includes a main body (21) connected to the fixed base (10) and extending along a preset direction, and a connecting structure (22) provided on the main body (21). Multiple connecting structures (22) are arranged. Each connecting structure (22) provided on the same main body (21) is detachably connected to the hook assembly (30).
2. The hook device as described in claim 1, characterized in that: The included angle between any two adjacent connecting arms (20) is equal.
3. The hook device as described in claim 1, characterized in that: The distance between any two adjacent connecting structures (22) on the same main body (21) is equal.
4. The hook device as described in any one of claims 1 to 3, characterized in that: The hook assembly (30) includes a hook body (32) for hooking the target component and a connector (31) connected to the hook body (32), wherein the connector (31) is detachably connected to the connection structure (22).
5. The hook device as described in claim 4, characterized in that: The connecting structure (22) is a connecting hole that penetrates the main body (21).
6. The hook device as described in claim 4, characterized in that: The hook assembly (30) also includes a load-bearing strap (33), the target component is provided with a hanging ear, the load-bearing strap (33) passes through the hanging ear, and the two ends of the load-bearing strap (33) are respectively wrapped around and fixed to the hook body (32).
7. The hook device as described in claim 6, characterized in that: The hook body (32) includes a hanging ring (321) connected to the connector (31) and a hook (322) connected to the bottom of the hanging ring (321). The hanging ring (321) has a ring-shaped structure. One end of the load-bearing band (33) passes through the inner cavity of the hanging ring (321) and is fixed around the hanging ring (321). The other end of the load-bearing band (33) is hung on the hook (322).
8. The hook device as described in any one of claims 1 to 3, characterized in that: The hook device also includes a reinforcing structure (40) disposed between two adjacent connecting arms (20), with the two ends of the reinforcing structure (40) respectively connected to the two adjacent connecting arms (20).
9. The hook device as described in any one of claims 1 to 3, characterized in that: The fixed base (10) is provided with a mounting hole (11), which is used to install the fixed base (10) onto the hoisting mechanism.
10. A forklift, characterized in that, Includes the hook device as described in any one of claims 1-9.