Adjustable metal hook

Abstract

The utility model discloses an adjustable metal hook, including main part structure, the adjusting structure of being located one end of this main part structure and the connecting locking structure of being located one side of this adjusting structure, the main part structure is composed of the hook body and base, the adjusting structure is composed of adjusting screw rod, sliding block and spring, the connecting locking structure is composed of the connecting ring and locking assembly, and the locking assembly is used for preventing the connecting ring from sliding, one end of hook body is the metal rod of the curved formation crook, and the end of hook body is fixed end and base fixed connection, and the crook of the other end is rotatory connection with fixed end, the base is the flat plate structure, and the both sides of board extend and form at least two limit blocks, and the base is fixed on the support through the mounting hole use bolt, the utility model discloses the combination of adjusting screw rod, sliding block and spring can lock the direction of hook body, and the anti -drop structure has reliable anti -drop performance, the hook body rotatory connection base cooperation limit block, and the structural stability is strengthened, and the composite protective layer and antiskid line improve the skid resistance durability.

Description

Technical Field

[0001] This utility model relates to the technical field of metal hooks, and specifically to an adjustable metal hook. Background Technology

[0002] In daily life and industrial production, metal hooks are widely used as common hanging devices in homes, offices, warehouses, and other scenarios. In the home, they are used to hang pots and pans in the kitchen, fix towels and bath sponges on bathroom walls, and arrange clothes in layers inside wardrobes to neatly organize keys and bags in the entryway. Supermarket shelves use hooks to display a wide variety of goods, clothing stores use hooks with anti-slip designs to display seasonal clothing, and art galleries use invisible hooks to accurately hang artworks. Factory workshops use high-load-bearing hooks to centrally manage and maintain tools, and agricultural greenhouses use hooks to neatly arrange irrigation pipes. Most adjustable hooks use gear transmission or multi-stage locking structures, resulting in a large external size and requiring both hands for adjustment, making them unsuitable for confined spaces or one-handed operation. Anti-slip structures often rely on a single spring or rigid buckle, which is prone to fatigue and deformation after long-term use, leading to failure. Summary of the Invention

[0003] The purpose of this utility model is to overcome the shortcomings of existing technologies and provide an adjustable metal hook. This utility model employs a combination design of an adjusting screw, a sliding block, and a spring. The adjusting screw is vertically mounted on the base and has an adjusting handle. The user only needs to rotate the handle with one hand to drive the screw to rotate, causing the sliding block to slide along the inner wall of the screw seat and compress the spring. The close contact between the sliding block and the hook body locks the opening direction, replacing traditional gears or multi-stage locking structures, reducing the overall size, and solving the problem of insufficient applicability in confined spaces or one-handed operation scenarios. Secondly, the anti-detachment structure achieves reliable anti-detachment through the cooperation of the connector, anti-detachment rod, and rotating spring. The anti-detachment rod is rotatably connected to the connector via a shaft pin, and the rotating spring is fitted on the rotating shaft of the anti-detachment rod, with its two ends respectively abutting against the inner wall of the connector and the spring groove of the anti-detachment rod. When the object... When an item is hooked in, the anti-slip bar compresses the spring, storing energy. Once the item is fully inserted, the spring releases its energy, pushing the anti-slip bar back to its original position. Its end forms a barrier against the inner wall of the hook, preventing the anti-slip failure caused by fatigue deformation of a single spring or rigid buckle due to long-term use. Furthermore, the hook body is rotatably connected to the base via a fixed end, allowing users to adjust the opening direction as needed. At the same time, the limiting blocks on both sides of the base enhance structural rigidity and prevent instability caused by excessive rotation, solving the problems of limited directional adjustment and insufficient structural stability of traditional hooks. Finally, the composite protective layer covering the hook surface, combined with the diamond-shaped grid anti-slip texture, ensures that the protective layer will not fall off after long-term use. At the same time, the anti-slip texture increases the contact area and friction coefficient, enhancing the anti-slip effect while buffering the impact between the hook and the item, solving the problem of items slipping off smooth surfaces due to vibration or tilting.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An adjustable metal hook includes a main structure, an adjustment structure at one end of the main structure, and a connecting locking structure on one side of the adjustment structure. The main structure consists of a hook body and a base. The adjustment structure consists of an adjustment screw, a sliding block, and a spring. The connecting locking structure consists of a connecting ring and a locking assembly, the locking assembly being used to prevent the connecting ring from sliding. One end of the hook body is a bent metal rod forming a hook, and the end of the hook body is a fixed end fixedly connected to the base. The hook at the other end is rotatably connected to the fixed end. The base is a flat plate structure with through mounting holes on the plate surface. At least two limiting blocks extend from both sides of the plate, and the base is fixed to a support using bolts through the mounting holes.

[0006] The adjusting screw is vertically mounted on the base via a screw seat, and an adjusting handle is provided at one end. The sliding block is fitted onto the adjusting screw and contacts the outer wall of the hook body. The spring is located on one side of the sliding block. By rotating the adjusting handle, the adjusting screw is driven to rotate, causing the sliding block to slide along the outer wall of the hook body, thereby locking the opening direction of the hook body. The spring keeps the sliding block stable through a restoring force, preventing the opening direction of the hook body from changing when pressed.

[0007] The connecting ring is fitted onto one end of the hook body; the locking assembly consists of a locking nut and a locking element, with the locking element installed between the connecting ring and the locking nut.

[0008] The adjusting screw consists of a threaded drive section, a guide section, and a handle connection section.

[0009] The threaded drive section is located in the lower section of the screw and uses an M8×1.25 fine thread with a thread angle of 60°.

[0010] The guide section of the optical rod is located between the threaded section and the handle connection section, with a diameter of φ6mm and a length of 15mm.

[0011] The handle connecting section is located at the top of the screw, adopts a D-shaped cross-section design, with a cross-section size of 10mm×6mm, and fits into the inner hole of the adjustment handle, and is rigidly connected by an M6 set screw.

[0012] The sliding block is provided with a connecting hole, and a rotary bearing is fitted inside the connecting hole. The sliding block is fitted onto the adjusting screw through the rotary bearing and is rotatably connected to the end of the threaded transmission section.

[0013] The hook is covered with a rubber protective layer, and the surface of the rubber protective layer is provided with anti-slip texture.

[0014] The end of the hook is equipped with an anti-disengagement structure.

[0015] The beneficial effects of this utility model are as follows:

[0016] 1. Through the combined design of adjusting screw, sliding block and spring, the adjusting screw is vertically installed on the base and is equipped with an adjusting handle. Rotating the handle drives the screw to rotate, causing the sliding block to slide along the inner wall of the screw seat and compress the spring. This solves the problem that the existing adjustable hook has a large outer size and requires two hands to adjust. It achieves the convenient operation of reducing the outer size and locking the direction with one hand.

[0017] 2. Through the cooperation of the connector, anti-detachment rod and rotating spring in the anti-detachment hook structure, the anti-detachment rod is rotatably connected to the connector via a shaft pin, and the rotating spring is fitted on the rotating shaft of the anti-detachment rod and abuts against the inner wall of the connector and the spring groove of the anti-detachment rod at both ends. This solves the problem that traditional anti-detachment structures are prone to failure due to fatigue deformation, and achieves a reliable anti-detachment effect for long-term use by restoring the spring energy.

[0018] 3. Through the rotational connection between the fixed end of the hook and the base, and the design of the limiting blocks on both sides of the base, the opening direction of the hook can be adjusted, while the limiting blocks enhance the connection rigidity, solving the problems of limited hook direction adjustment and structural instability, and achieving the effect of flexible direction adjustment and maintaining structural stability.

[0019] 4. The natural rubber and nitrile rubber composite protective layer covering the hook surface, combined with the diamond grid anti-slip texture, solves the problems of slipping on smooth items and the protective layer falling off easily, achieving a protective and anti-slip effect that buffers impact, enhances friction, and ensures that the protective layer will not fall off after long-term use. Attached Figure Description

[0020] Figure 1 This is one of the perspective views of this utility model.

[0021] Figure 2 This is the second perspective view of this utility model.

[0022] Figure 3 This is the third perspective view of this utility model.

[0023] Figure 4 This is a cross-sectional view of the present invention.

[0024] Figure 5 yes Figure 4 Enlarged view of point A in the middle.

[0025] Figure 6 This is a cross-sectional view of the adjustment structure of this utility model.

[0026] Figure 7 This is an exploded view of this utility model.

[0027] Explanation of icon numbers:

[0028] 1-Main structure, 10-Hook body, 100-Fixed end, 101-Bent hook, 11-Base, 110-Flat plate structure, 111-Mounting hole, 112-Limit block, 2-Adjusting structure, 20-Adjusting screw, 200-Threaded transmission section, 201-Smooth rod guide section, 202-Handle connection section, 21-Screw seat, 22-Adjusting handle, 23-Sliding block, 24-Spring, 3-Connecting locking structure, 30-Connecting ring, 31-Locking assembly, 310-Locking nut, 311-Locking part, 4-Anti-disengagement structure, 40-Connecting part, 41-Anti-disengagement rod, 42-Rotating spring. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings:

[0030] like Figure 1-7As shown, this utility model relates to an adjustable metal hook, including a main structure 1, an adjustment structure 2 located at one end of the main structure 1, and a connecting and locking structure 3 located on one side of the adjustment structure 2. The main structure 1 consists of a hook body 10 and a base 11. One end of the hook body 10 is a bent hook 101 formed by bending a metal rod, and the other end of the hook body 10 is a fixed end 100, which is fixedly connected to the base 11 by bolts. A rolling bearing is embedded in the fixed end 100. The straight segment of the hook 101 at the other end is connected to the rolling bearing of the fixed end 100. Rotary connection; the base 11 is a flat plate structure 110, with through mounting holes 111 on the plate surface. At least two limiting blocks 112 extend from both sides of the plate. Specifically, the limiting blocks can be arranged to the left and right sides or to the back of the plate, depending on actual needs. The main structure 1 is used to form a basic hook for hanging items by combining the hook body 10 and the base 11. A stabilizing seat is also fitted on the straight section of the hook body 10, and a bearing is nested inside the stabilizing seat. The straight section of the hook body 10 passes through the bearing and rotates with the stabilizing seat. The connecting rod is bolted to the base 11. The hook 10 is used to form a suspension space through a bent metal rod. The end of the hook 101 is provided with an anti-slip structure 4 to prevent the item from slipping. The base 11 is used to securely install the entire hook on the surface of the support through the mounting hole 111 and bolts. The limit blocks 112 on both sides can be wedged into the support to enhance the connection stability with the support. The adjustment structure 2 consists of an adjustment screw 20, a sliding block 23 rotatably connected by a ball bearing, and a spring 24 located on one side of the sliding block 23. The adjustment structure 2 is used to move the sliding block 23 toward the hook body 10 by rotating the adjustment screw 20 and compressing the spring 24, so that the sliding block 23 is in close contact (pressed) with the outer wall of the straight section of the hook body 10 to lock the opening direction; the connecting locking structure 3 consists of a connecting ring 30 and a locking assembly 31. The connecting ring 30 is fixed by the locking assembly 31 to maintain the load-bearing stability of the hook; the locking assembly 31 is used to prevent the connecting ring 30 from rotating freely and to maintain the relative position stability with the hook body 10 through the locking action of the locking assembly 31.

[0031] like Figure 1-7 As shown, the adjusting screw 20 is vertically mounted on the base 11 via a screw seat 21. The screw seat 21 has an inner cavity and a threaded hole at the top. One end of the adjusting screw 20 is provided with an adjusting handle 22, and the other end of the adjusting screw 20 passes through the threaded hole. The sliding block 23 is fitted onto the adjusting screw 20 and contacts the outer wall of the hook body 10. Multiple sets of springs 24 are fixed between the sliding block 23 and the screw seat 21. By rotating the adjusting handle 22, the adjusting screw 20 is driven to rotate, causing the sliding block 23 to slide along the inner wall of the screw seat 21. When the sliding block moves downward, it presses against the opening direction of the hook body 10. The springs 24 maintain the stability of the sliding block 23 through the restoring force, preventing excessive pressure from damaging the hook body 10.

[0032] like Figure 4-7As shown, the adjusting screw 20 consists of a threaded transmission section 200, a smooth guide section 201, and a handle connecting section 202. The threaded transmission section 200 is located at the lower section of the screw, using an M8×1.25 fine thread with a thread angle of 60°. The smooth guide section 201 is located between the threaded section 200 and the handle connecting section 202, with a diameter of φ6mm and a length of 15mm. The handle connecting section 202 is located at the top of the screw, using a D-shaped cross-section design with a cross-sectional size of 10mm×6mm. It mates with the inner hole of the adjusting handle 22 and is rigidly connected by an M6 set screw. The fine thread mates with the internal thread of the threaded hole in the screw seat 21, giving the adjusting screw 20 high transmission accuracy for micro-distance control and anti-loosening performance during long-term use. The handle connecting section 202 mates with the adjusting handle 22 and is rigidly connected by an M6 set screw to prevent relative rotation of the handle and ensure the transmission of adjusting torque during single-handed operation.

[0033] like Figure 6-7 As shown, the sliding block 23 is provided with a connecting hole and a pressing groove on one end face. The opening of the pressing groove faces the hook body 10. A rotary bearing is fitted inside the connecting hole. The sliding block 23 is fitted onto the adjusting screw 20 through the rotary bearing. The rotary bearing is rotatably connected to the tail end of the threaded transmission section 200. The sliding block 23 is prevented from being damaged by excessive pressure on the straight section of the hook body 10 by the action of the spring 24 at the bottom.

[0034] like Figure 1-7 As shown, the connecting ring 30 is fitted onto one end of the straight section of the hook body 10. The inner diameter of the connecting ring 30 is slightly larger than the outer diameter of the straight section of the hook body 10, allowing the connecting ring 30 to be rotatably connected to the straight section of the hook body 10. The locking assembly 31 consists of a locking nut 310 and a locking member 311. The locking member 311 is installed between the connecting ring 30 and the locking nut 310, with one end of the locking member fixedly connected to the connecting ring 30. Specifically, one end of the connecting ring 30 is fixedly connected to one side of the stabilizing seat, preventing relative rotation of the connecting ring 30. One end of the locking nut 310 is limitedly connected to the connecting member 40 of the anti-disengagement structure 4 via bolts. One side of the locking nut 310 is provided with several locking grooves, the sidewalls of which are streamlined arcs. When the hook body 10 rotates at a certain angle, the locking spring on the locking member 311 slides into one of the slots along the arc surface, thus fixing the angle of the hook body 10. The locking spring is made of metal and has a certain elastic deformation performance. Then, the adjusting screw 20 adjusts the sliding block 23 to press the straight section of the hook body 10, thus fixing the direction of the hook body 10. When adjusting the direction of the hook body 10 again, first, the adjusting screw 20 loosens the pressing of the sliding block 23 on the hook body 10. Then, the hook body 10 is rotated, and the locking nut 310 rotates synchronously, causing the locking spring on the locking member 311 to slide out of the slot along the arc surface until the locking spring is inserted into another slot along the arc surface.

[0035] like Figure 1-4As shown, the hook 101 is covered with a rubber protective layer, the surface of which has anti-slip texture. This rubber protective layer, which is in direct contact with the hung item, provides both protection and anti-slip properties. The rubber material is a composite of natural rubber and nitrile rubber with a Shore hardness of 70±5A. This ensures sufficient elasticity to cushion the impact between the hook and the item, while the oil resistance of the nitrile rubber enhances corrosion resistance. The thickness is controlled at 2.0±0.2mm to ensure the protective effect while avoiding excessive thickness that would cause the hook opening size to exceed the standard. The surface has anti-slip texture. The design employs a diamond-shaped mesh structure with a side length of 3.0mm, a depth of 1.5mm, and a spacing of 2.0mm. By increasing the contact area and friction coefficient, the hook generates sufficient static friction when suspended vertically or supported horizontally, preventing smooth surfaces (such as metal pipes and plastic parts) from slipping due to vibration or tilting. The bonding strength between the rubber layer and the metal substrate of the hook is controlled through a vulcanization process, with a peel strength ≥8.0N / mm, ensuring that the protective layer does not peel off during long-term use. The anti-slip texture is laid out at a 45° angle to the direction of force on the hook, utilizing the interlocking effect of the texture edges to enhance the anti-slip effect.

[0036] like Figure 1-4 As shown, the end of the hook 101 is provided with an anti-detachment structure 4. The anti-detachment structure 4 includes a connector 40 at the straight end of the hook, an anti-detachment rod 41 rotatably connected to the connector 40, and a rotational spring 42 between the connector 40 and the anti-detachment rod 41. The anti-detachment structure 4 is used to prevent items from slipping off the hook end. The connector 40 is a basic support component and is fixedly installed at the straight end of the hook. It has a rotation shaft hole inside to receive the rotation shaft of the anti-detachment rod 41. The anti-detachment rod 41 is rotatably connected to the connector 40 through a shaft pin to ensure that the anti-detachment rod 41 can rotate freely around the connector 40. The rotating spring 42 is mounted on the rotating shaft of the anti-detachment rod 41, with its two ends abutting against the inner wall of the connector 40 and the spring groove of the anti-detachment rod 41, respectively. Through its own elasticity, the anti-detachment rod 41 maintains a tendency to close towards the opening of the hook when there is no external force. When an item is hooked into the hook 101, the anti-detachment rod 41 rotates inward under the pushing force of the item and compresses the rotating spring 42. At this time, the spring stores energy. When the item is fully inside the hook 101, the spring releases energy to push the anti-detachment rod 41 back to its original position. The end of the anti-detachment rod 41 forms a blockage with the inner wall of the hook 101, thereby preventing the item from slipping out of the hook opening due to vibration or external force.

[0037] The above description is only a preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model. Therefore, without departing from the design spirit of the present utility model, any equivalent changes or modifications made by those skilled in the art to the structure, features and principles of the present utility model should fall within the protection scope of the patent application of the present utility model.

Claims

1. An adjustable metal hook, characterized in that: The device includes a main structure, an adjustment structure at one end of the main structure, and a connecting and locking structure on one side of the adjustment structure. The main structure consists of a hook and a base. The adjustment structure consists of an adjustment screw, a sliding block, and a spring. The connecting and locking structure consists of a connecting ring and a locking assembly, which prevents the connecting ring from sliding. One end of the hook is a bent metal rod forming a hook, and the end of the hook is a fixed end that is fixedly connected to the base. The hook at the other end is rotatably connected to the fixed end. The base is a flat plate structure with through mounting holes on the surface. At least two limiting blocks extend from both sides of the plate, and the base is fixed to a support using bolts through the mounting holes.

2. An adjustable metal hook according to claim 1, characterized in that: The adjusting screw is vertically mounted on the base via a screw seat, and an adjusting handle is provided at one end. The sliding block is fitted onto the adjusting screw and contacts the outer wall of the hook body. The spring is located on one side of the sliding block. By rotating the adjusting handle, the adjusting screw is driven to rotate, causing the sliding block to slide along the outer wall of the hook body, thereby locking the opening direction of the hook body. The spring keeps the sliding block stable through a restoring force, preventing the opening direction of the hook body from changing when pressed.

3. An adjustable metal hook according to claim 1, characterized in that: The connecting ring is fitted onto one end of the hook body; the locking assembly consists of a locking nut and a locking element, with the locking element installed between the connecting ring and the locking nut.

4. An adjustable metal hook according to claim 2, characterized in that: The adjusting screw consists of a threaded drive section, a guide section, and a handle connection section.

5. An adjustable metal hook according to claim 4, characterized in that: The threaded drive section is located in the lower section of the screw and uses an M8×1.25 fine thread with a thread angle of 60°.

6. An adjustable metal hook according to claim 4, characterized in that: The guide section of the optical rod is located between the threaded section and the handle connection section, with a diameter of φ6mm and a length of 15mm.

7. An adjustable metal hook according to claim 4, characterized in that: The handle connecting section is located at the top of the screw, adopts a D-shaped cross-section design, with a cross-section size of 10mm×6mm, and fits into the inner hole of the adjustment handle, and is rigidly connected by an M6 set screw.

8. An adjustable metal hook according to claim 5, characterized in that: The sliding block is provided with a connecting hole, and a rotary bearing is fitted inside the connecting hole. The sliding block is fitted onto the adjusting screw through the rotary bearing and is rotatably connected to the end of the threaded transmission section.

9. An adjustable metal hook according to claim 1, characterized in that: The hook is covered with a rubber protective layer, and the surface of the rubber protective layer is provided with anti-slip texture.

10. An adjustable metal hook according to claim 9, characterized in that: The end of the hook is equipped with an anti-disengagement structure.

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