A hook-type clamp device
Patent Information
- Application Number
- CN202522495275.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-25
- Publication Date
- 2026-10-30
- Estimated Expiration
- 2035-11-25
AI Technical Summary
[0004]传统夹具面对不同类型物体时，需要频繁更换夹具，导致效率降低，因此，针对上述问题提出一种勾型夹具装置
1.本实用新型所述的一种勾型夹具装置，通过液压缸的伸缩控制第一连杆与第二连杆转动，实现夹持操作，操作简单且能根据物体大小调整夹持力度，钩体的转动设计可以切换不同模式，从物体外侧进行夹持时，钩体与第二连杆形成夹角，减少物体掉落，从物体内部撑起时，可伸入管材、筒状物体内部，减少外部夹持变形问题，当挂钩使用时，端部凸起能拦截物体滑落，增强安全性，在夹持不同形状、物体时减少工具的更换，增加适用性。
Smart Images
Figure CN224914782U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mechanical manufacturing, specifically a hook-shaped clamping device. Background Technology
[0002] Hook-type clamps are mechanical clamping tools with hook structures, commonly used for lifting, fixing, or transporting workpieces. They achieve stable clamping by engaging the hook with the workpiece's slots, edges, or other parts, along with a locking device. They are easy to operate and widely used in manufacturing, logistics, and warehousing, improving the safety and efficiency of heavy object handling or processing.
[0003] During the production of hook-type fixtures, steel of appropriate specifications is selected, and it is cut, forged, or rolled to obtain a blank that closely resembles the shape of the part. The blank is then subjected to turning, milling, grinding, and other processes. The processed parts are then quenched and tempered. The parts are assembled into a complete fixture, and the flexibility of the locking device and the firmness of the clamping are tested. Rust prevention is achieved through methods such as painting and galvanizing. Finally, an appearance inspection and performance test are conducted, and only those that pass the test can be shipped from the factory.
[0004] Traditional clamps require frequent clamp changes when dealing with different types of objects, resulting in reduced efficiency. Therefore, a hook-type clamp device is proposed to address the above problem. Utility Model Content
[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.
[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A hook-type clamp device of this utility model includes an assembly frame; a lifting ring is fixedly connected to the top of the assembly frame; a hydraulic cylinder is installed at the bottom of the assembly frame; a mounting block is fixedly connected to the output end of the hydraulic cylinder; a set of first connecting rods are rotatably connected to both sides of the mounting block; a second connecting rod is rotatably connected to the end of each of the first connecting rods; the second connecting rod is arranged between the set of first connecting rods; a fixed column is rotatably connected to the middle of the second connecting rod; the fixed column passes through the second connecting rod and is fixedly connected to the inner wall of the assembly frame; the bottom of the second connecting rod is rotatably connected to... It has a hook body; the end of the hook body is provided with a protrusion; the first link and the second link are rotated by the extension and retraction of the hydraulic cylinder to realize the clamping operation. The operation is simple and the clamping force can be adjusted according to the size of the object. The rotation design of the hook body can switch between different modes. When clamping from the outside of the object, the hook body and the second link form an angle to reduce the object falling. When supporting from the inside of the object, it can extend into the inside of pipes and cylindrical objects to reduce the problem of external clamping deformation. When the hook is in use, the end protrusion can intercept the object from slipping, enhancing safety. It reduces the need to change tools when clamping different shapes and objects, increasing applicability.
[0007] Preferably, a battery compartment is fixedly connected to the bottom of the assembly frame; a light tube is installed at the bottom of the battery compartment; a compartment cover is slidably connected to one side of the battery compartment; a magnet is fixedly connected to one side of the battery compartment; the magnet is located on the side near the compartment cover; the light tube installed at the bottom of the assembly frame directly illuminates the clamping area between the second connecting rod and the hook, providing precise lighting, reducing clamping instability, object slippage, or collision accidents caused by poor visibility, increasing operational safety, allowing the battery to be disassembled and replaced by sliding the compartment cover, and the magnetic attraction and fixation can reduce the risk of the battery falling off due to accidental slippage of the compartment cover, interruption of the light tube illumination, and increased lighting stability.
[0008] Preferably, a support plate is fixedly connected to the middle of the assembly frame; the support plate is positioned above the mounting block; the output end of the hydraulic cylinder passes through the support plate; a piezoelectric sheet is fixedly connected to the bottom of the support plate; the piezoelectric sheet is arranged in a ring shape; a buzzer is installed on one side of the assembly frame; the buzzer is electrically connected to the piezoelectric sheet; the hydraulic cylinder retracts, causing the mounting block to press the ring-shaped piezoelectric sheet upwards, and the piezoelectric sheet converts the pressure into electrical energy, which is transmitted to the buzzer to trigger an alarm. This reduces the likelihood of the hydraulic cylinder retracting to the threshold, causing damage to the second connecting rod, thus reducing the frequency of repair and replacement due to damage to the second connecting rod and increasing the service life of the device.
[0009] Preferably, multiple hook teeth are provided on the top of the hook body and both sides of the second connecting rod; the hook teeth are triangular in shape; by embedding the edges of the triangular hook teeth into the surface of the object or by engaging the edge of the object to form a mechanical engagement, the contact points are increased, the risk of the object sliding due to gravity or shaking is reduced, and the clamping stability is enhanced.
[0010] Preferably, dustproof cloths are fixed to both sides of the assembly frame; the dustproof cloths are correspondingly set to the hydraulic cylinders; the barrier formed by the dustproof cloths can directly intercept dust and other particles from the surrounding environment from adhering to the surface of the hydraulic cylinders, preventing them from getting stuck and causing problems such as the second link not opening and closing smoothly and the force control being inaccurate, thereby increasing the operational stability of the hydraulic cylinders.
[0011] Preferably, a reinforcing rib is fixedly connected to the end of the second connecting rod; the other end of the reinforcing rib is fixedly connected to the middle of the second connecting rod to form a triangle. The reinforcing rib connects the end of the second connecting rod to the middle, and after forming a triangle, the force is evenly distributed, the overall rigidity is increased, and the bending and deformation of the second connecting rod due to excessive force is reduced, which would cause the two sides of the second connecting rod to be inconsistent, resulting in the object tilting, and the clamping accuracy is increased.
[0012] The advantages of this utility model are: 1. The hook-type clamping device of this utility model controls the rotation of the first and second connecting rods by the extension and retraction of the hydraulic cylinder to achieve clamping operation. It is simple to operate and can adjust the clamping force according to the size of the object. The rotation design of the hook body can switch between different modes. When clamping from the outside of the object, the hook body and the second connecting rod form an angle to reduce the object from falling. When supporting from the inside of the object, it can extend into the inside of pipes and cylindrical objects to reduce the problem of external clamping deformation. When the hook is in use, the protrusion at the end can intercept the object from slipping, enhancing safety. It reduces the need to change tools when clamping different shapes and objects, increasing applicability.
[0013] 2. The hook-shaped clamping device described in this utility model uses a lamp installed at the bottom of the assembly frame to directly illuminate the clamping area between the second connecting rod and the hook body, providing precise lighting, reducing accidents such as unstable clamping, object slippage, or collisions caused by poor visibility, increasing operational safety, allowing the battery to be disassembled and replaced by a sliding cover, and the magnetic adsorption fixation can reduce the risk of the battery falling off due to accidental slippage of the cover, interruption of lamp lighting, and increased lighting stability. Attached Figure Description
[0014] 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 these drawings without creative effort.
[0015] Figure 1 This is a schematic diagram of the main body of this utility model; Figure 2 This is a schematic diagram of the hydraulic cylinder in this utility model; Figure 3 This is a schematic diagram of the structure of the first connecting rod in this utility model; Figure 4 This is a schematic diagram of the hook body in this utility model; Figure 5 This is a schematic diagram of the structure of the lamp tube in this utility model.
[0016] In the diagram: 1. Assembly frame; 11. Lifting ring; 12. Hydraulic cylinder; 13. Mounting block; 14. First connecting rod; 15. Second connecting rod; 16. Fixing column; 17. Hook body; 2. Battery compartment; 21. Lamp tube; 22. Compartment cover; 23. Magnet; 3. Support plate; 31. Buzzer; 32. Piezoelectric sheet; 4. Hook teeth; 5. Dustproof cloth; 6. Reinforcing rib. Detailed Implementation
[0017] 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0018] Specific implementation examples are given below.
[0019] like Figures 1 to 5 As shown in the embodiment of this utility model, a hook-shaped clamping device includes an assembly frame 1; a lifting ring 11 is fixedly connected to the top of the assembly frame 1; a hydraulic cylinder 12 is installed at the bottom of the assembly frame 1; a mounting block 13 is fixedly connected to the output end of the hydraulic cylinder 12; a set of first connecting rods 14 are rotatably connected to both sides of the mounting block 13; a second connecting rod 15 is rotatably connected to the end of the first connecting rod 14; the second connecting rod 15 is arranged between the set of first connecting rods 14; a fixing column 1 is rotatably connected to the middle of the second connecting rod 15. 6; The fixed column 16 passes through the second connecting rod 15 and is fixedly connected to the inner wall of the assembly frame 1; the bottom of the second connecting rod 15 is rotatably connected to a hook body 17; the end of the hook body 17 is provided with a protrusion; during operation, the lifting ring 11 is connected to the lifting device, the hydraulic cylinder 12 is controlled to retract, so that its output end pulls the mounting block 13, so that the end of the first connecting rod 14 rotates around the mounting block 13, driving the second connecting rod 15 to rotate around the fixed column 16, opening the bottom of a set of second connecting rods 15, and rotating the hook body 17 so that its end rotates to a set of first connecting rods 14. Inside the second link 15, move the second link 15 to the edge of the object, control the extension of the hydraulic cylinder 12, so that the bottom of the second link 15 closes and contacts the object, using the hook 17 for clamping. When the end of the hook 17 faces the outside of the second link 15, the end of the second link 15 can be inserted into the pipe, supporting the pipe from the inside for movement. When the hook 17 rotates to be side by side, it can be used as a regular hook; the protruding end can prevent the object from slipping. The extension and retraction of the hydraulic cylinder 12 controls the first link 14 and... The second link 15 rotates to achieve clamping operation. The operation is simple and the clamping force can be adjusted according to the size of the object. The rotation design of the hook body 17 can switch between different modes. When clamping from the outside of the object, the hook body 17 and the second link 15 form an angle to reduce the object from falling. When supporting from the inside of the object, it can extend into the inside of pipes and cylindrical objects to reduce the problem of external clamping deformation. When the hook is in use, the end protrusion can intercept the object from slipping, enhancing safety. It reduces the need to change tools when clamping different shapes and objects, increasing applicability.
[0020] like Figure 1 and Figure 5As shown, a battery compartment 2 is fixedly connected to the bottom of the assembly frame 1; a lamp tube 21 is installed at the bottom of the battery compartment 2; a compartment cover 22 is slidably connected to one side of the battery compartment 2; a magnet 23 is fixedly connected to one side of the battery compartment 2; the magnet 23 is located on the side near the compartment cover 22; during operation, the compartment cover 22 is slid to separate its end from the magnet 23, the battery is inserted into the battery compartment 2, the compartment cover 22 is slid back to its original position, the magnet 23 attracts the compartment cover 22 for fixation, the lamp tube 21 is turned on to emit light, illuminating the clamping area of the second connecting rod 15. The lamp tube 21 is installed at the bottom of the assembly frame 1, directly illuminating the clamping area of the second connecting rod 15 and the hook 17, providing precise lighting, reducing clamping instability, object slippage or collision accidents caused by poor visibility, increasing operational safety, the sliding compartment cover 22 allows for battery removal and replacement, the magnet 23's attraction and fixation reduces the risk of the compartment cover 22 accidentally slipping and causing the battery to fall off, interrupting the lighting of the lamp tube 21, and increasing lighting stability.
[0021] like Figures 1 to 4 As shown, a support plate 3 is fixedly connected to the middle of the assembly frame 1; the support plate 3 is positioned above the mounting block 13; the output end of the hydraulic cylinder 12 passes through the support plate 3; a piezoelectric sheet 32 is fixedly connected to the bottom of the support plate 3; the piezoelectric sheet 32 is arranged in a ring shape; a buzzer 31 is installed on one side of the assembly frame 1; the buzzer 31 and the piezoelectric sheet 32 are electrically connected; during operation, when the hydraulic cylinder 12 retracts, it drives the mounting block 13 to squeeze the piezoelectric sheet 32, and the piezoelectric sheet 32 transmits the current generated by the squeezing to the buzzer 31, causing it to sound an alarm. The retraction of the hydraulic cylinder 12 drives the mounting block 13 to squeeze the annular piezoelectric sheet 32 upwards, and the piezoelectric sheet 32 converts the pressure into electrical energy, which is transmitted to the buzzer 31 to trigger the alarm. This reduces the likelihood of the hydraulic cylinder 12 retracting to the threshold and causing damage to the second connecting rod 15, thus reducing the frequency of repair and replacement of the second connecting rod 15 and increasing the service life of the device.
[0022] As shown in Figures 1-2, multiple hook teeth 4 are provided on the top of the hook body 17 and on both sides of the second connecting rod 15; the hook teeth 4 are triangular in shape; during operation, when clamping an object, the edge of the object contacts a set of hook teeth 4 to form an interlocking state, increasing friction. The edges of the triangular hook teeth 4 are embedded into the surface of the object or stuck into the edge of the object to form a mechanical interlocking, increasing the contact points, reducing the risk of the object sliding due to gravity or shaking, and enhancing clamping stability.
[0023] like Figure 1 , Figure 2 and Figure 4As shown, dustproof cloths 5 are fixed to both sides of the assembly frame 1; the dustproof cloths 5 are correspondingly set with the hydraulic cylinder 12; during operation, the dustproof cloths 5 form a barrier connected to the middle of the assembly frame 1, intercepting the surrounding dust from entering the assembly frame 1 and adhering to the surface of the hydraulic cylinder 12, causing jamming. The barrier formed by the dustproof cloths 5 can directly intercept dust and other particles in the surrounding environment from adhering to the surface of the hydraulic cylinder 12, causing it to jam, resulting in problems such as the second connecting rod 15 not opening and closing smoothly and the force control being inaccurate, thus increasing the operational stability of the hydraulic cylinder 12.
[0024] like Figure 1 , Figure 2 and Figure 4 As shown, a reinforcing rib 6 is fixedly connected to the end of the second connecting rod 15; the other end of the reinforcing rib 6 is fixedly connected to the middle of the second connecting rod 15 to form a triangle. During operation, the reinforcing rib 6 connects the two ends of the second connecting rod 15 to form a triangle, reducing the risk of deformation of the second connecting rod 15. After the end and middle of the second connecting rod 15 are connected by the reinforcing rib 6 to form a triangle, the force is evenly distributed, increasing the overall rigidity and reducing the bending and deformation of the second connecting rod 15 due to excessive force, which would cause the two sides of the second connecting rod 15 to be inconsistent, causing the object to tilt, thus increasing the clamping accuracy.
[0025] Working principle: By connecting the lifting ring 11 to the lifting device, the hydraulic cylinder 12 is controlled to retract, causing its output end to pull the mounting block 13. This causes the end of the first connecting rod 14 to rotate around the mounting block 13, driving the second connecting rod 15 to rotate around the fixed column 16. The bottom of the second connecting rod 15 is opened, and the hook body 17 is rotated so that its end rotates to the inside of the second connecting rod 15. The second connecting rod 15 is moved to the edge of the object, and the hydraulic cylinder 12 is controlled to extend, causing the bottom of the second connecting rod 15 to close and contact the object. The hook body 17 is used to clamp the object. When the end of the hook body 17 faces the outside of the second connecting rod 15, the end of the second connecting rod 15 can be inserted into the pipe to support it from the inside and move it. When the hook body 17 is rotated to the side, it can be used as a regular hook, and the protruding end can intercept objects. When an object slips, the sliding cover 22 separates its end from the magnet 23, allowing the battery to be inserted into the battery compartment 2. The sliding cover 22 is then reset, and the magnet 23 attracts the cover 22 for fixation. The lamp tube 21 is turned on to emit light, illuminating the clamping area of the second link 15. When the hydraulic cylinder 12 retracts, it drives the mounting block 13 to squeeze the piezoelectric sheet 32. The piezoelectric sheet 32 transmits the current generated by the squeezing to the buzzer 31, causing it to sound an alarm. When clamping an object, the edge of the object contacts a set of hook teeth 4, forming a biting state and increasing friction. The dustproof cloth 5 connects to the middle of the assembly frame 1 to form a barrier, intercepting surrounding dust from entering the assembly frame 1 and adhering to the surface of the hydraulic cylinder 12, causing jamming. The reinforcing rib 6 connects the two ends of the second link 15, forming a triangle to reduce the risk of deformation of the second link 15.
[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A hook-shaped clamping device, characterized in that: The assembly includes an assembly frame (1); a lifting ring (11) is fixedly connected to the top of the assembly frame (1); a hydraulic cylinder (12) is installed at the bottom of the assembly frame (1); an installation block (13) is fixedly connected to the output end of the hydraulic cylinder (12); a set of first connecting rods (14) are rotatably connected to both sides of the installation block (13); a second connecting rod (15) is rotatably connected to the end of the first connecting rod (14); the second connecting rod (15) is arranged between the set of first connecting rods (14); a fixed column (16) is rotatably connected to the middle of the second connecting rod (15); the fixed column (16) passes through the second connecting rod (15) and is fixedly connected to the inner wall of the assembly frame (1); a hook (17) is rotatably connected to the bottom of the second connecting rod (15); a protrusion is provided at the end of the hook (17).
2. The hook-type clamping device according to claim 1, characterized in that: The assembly frame (1) has a battery compartment (2) fixedly attached to its bottom; a lamp tube (21) is installed at the bottom of the battery compartment (2); a compartment cover (22) is slidably connected to one side of the battery compartment (2); a magnet (23) is fixedly attached to one side of the battery compartment (2); the magnet (23) is located on the side near the compartment cover (22).
3. The hook-type clamping device according to claim 2, characterized in that: A support plate (3) is fixedly connected to the middle of the assembly frame (1); the support plate (3) is set above the mounting block (13); the output end of the hydraulic cylinder (12) passes through the support plate (3); a piezoelectric sheet (32) is fixedly connected to the bottom of the support plate (3); the piezoelectric sheet (32) is arranged in a ring; a buzzer (31) is installed on one side of the assembly frame (1); the buzzer (31) and the piezoelectric sheet (32) are electrically connected.
4. The hook-type clamping device according to claim 3, characterized in that: Multiple hook teeth (4) are provided on the top of the hook body (17) and on both sides of the second connecting rod (15); the hook teeth (4) are triangular in shape.
5. A hook-type clamping device according to claim 4, characterized in that: The assembly frame (1) has dustproof cloths (5) fixed to both sides; the dustproof cloths (5) and the hydraulic cylinders (12) are set in a corresponding manner.
6. A hook-type clamping device according to claim 5, characterized in that: The end of the second connecting rod (15) is fixed with a reinforcing rib (6); the other end of the reinforcing rib (6) is fixed with the middle part of the second connecting rod (15) to form a triangle.