Corner protectors

Abstract

The utility model belongs to the field of hoisting safety protection, including the folding plate, arc plate and nut connecting piece, the folding plate is located in the arc plate inboard, the both ends of folding plate are connected with the both ends of arc plate, the corner end of folding plate is connected with the top center position of arc plate, the nut connecting piece is located in the arc plate outboard, is fixedly connected in the top center position of arc plate, the opening direction of nut connecting piece is perpendicular to the axial direction of arc plate, the folding plate is set up to provide the stable support frame for the corner protector, can effectively fit the corner of the hoisted object, thereby increases the stress area, disperses the hoisting pressure, avoids the damage of the corner of hoisted object, simultaneously, the arc plate can avoid the risk of wire rope wear and tear, broken wire and stress point structure damage, improves the operation safety factor as a whole, the screw hole of nut can be fixed with thin iron wire, provides temporary anchor point for hoisting operation, simplifies the operation process, reduces the artificial cost, improves the operation efficiency and safety.

Description

Technical Field

[0001] This utility model belongs to the field of lifting and hoisting safety protection, specifically relating to an edge protector for protecting the edges of the hoisted object and simultaneously providing temporary anchor points and stress points. Background Technology

[0002] Lifting and hoisting operations are crucial in construction projects, large equipment installations, and port cargo handling, with their safety and efficiency directly impacting project progress and personnel safety. In practice, most objects being lifted (such as steel structures, precast concrete components, stone slabs, and large machinery) often have sharp edges. If lifting ropes (including synthetic fiber slings and wire ropes) come into direct contact with these edges and rub against them, the surface fibers of the ropes are easily cut or broken, or the wire ropes may wear down or break due to localized stress concentration, significantly reducing their load-bearing capacity, and may even break suddenly during lifting. Such accidents not only cause property damage such as falling cargo and equipment damage, but also endanger the safety of on-site personnel and the surrounding environment, potentially leading to serious injuries or fatalities.

[0003] Furthermore, unprotected sharp edges can easily snag on surrounding pipelines, scaffolding, equipment, or other structures during hoisting, swinging, or movement, leading to loss of control of the load and imbalance of the hoisting equipment, further increasing operational risks. my country's "Safety Regulations for Lifting Machinery" (GB / T 6067) and related industry hoisting operation standards clearly stipulate that it is strictly prohibited to use unprotected lifting slings to directly lift goods with sharp corners or edges; when using wire ropes to lift such objects, padding materials such as square timber, semi-circular pipes, or special corner protectors must be placed at the contact points between the rope and the sharp corners of the load to distribute stress and reduce wear.

[0004] However, in current on-site operations, the implementation of regulations remains significantly inadequate. Many workers, for convenience, often resort to makeshift methods such as using rags or burlap sacks for edge protection. These materials are weak, easily shifted, and not wear-resistant, offering extremely poor protection and cannot be reused. Furthermore, most construction sites or loading / unloading areas lack fixed, reliable anchor points. If temporary protective devices or auxiliary anchor points are needed, multiple people are often required, making the process cumbersome, time-consuming, and labor-intensive. Moreover, in high-speed, high-load hoisting operations, these temporary measures themselves can become safety hazards.

[0005] In summary, existing corner protection methods suffer from poor protective effects, inconvenient installation, low adaptability, and insufficient reusability, making it difficult to meet the demands of efficient and safe modern lifting operations. Therefore, there is an urgent need to develop a specialized corner protection device that is simple in structure, quick to install, highly adaptable, and reusable to fill the current technological gap and improve the overall safety and efficiency of lifting operations.

[0006] A search revealed Chinese patent CN 217535135 U, entitled "Edge Protection Device for Lifting and Hoisting." The two patents differ in their core structures. The prior art patent's structure consists of a flexible pad, a replaceable angled magnetic metal component, a ferrous arc-shaped metal component, and an arc-shaped lifting support body, connected via a split design and magnetic attraction. This application's core structure is a single, integrated three-part design: a folded plate, an arc-shaped plate, and a nut connector, connected by welding. Their technical objectives also differ. The prior art patent uses a "split-type combinable" design, focusing on solving the problems of "adapting components at different angles" and "two-way protection." This application uses a "single-piece fixed" design, focusing on solving the problems of "edge protection" and "temporary anchoring." The prior art patent uses magnetic attraction, which may lead to displacement during lifting and cannot provide temporary anchoring points; replacing the angled magnetic metal component is also cumbersome. Utility Model Content

[0007] To address the problems of "poor edge protection, lack of temporary anchor points, and cumbersome and labor-intensive operation" in existing hoisting operations, this utility model provides an edge protector that effectively protects the edges of the hoisted object and prevents it from being damaged during hoisting; provides temporary anchor points for operation scenarios without fixed anchor points; simplifies the operation process, reduces labor costs, and improves operation efficiency and safety.

[0008] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows: An edge protector, characterized in that it comprises a folded plate, an arc-shaped plate, and a nut connector. The folded plate is located inside the arc-shaped plate, and its two ends are connected to the two ends of the arc-shaped plate. The edge end of the folded plate is connected to the top center of the arc-shaped plate. The nut connector is located outside the arc-shaped plate and is fixedly connected to the top center of the arc-shaped plate. The opening direction of the nut connector is perpendicular to the axial direction of the arc-shaped plate.

[0009] Furthermore, the two ends of the folded plate are welded to the two ends of the arc-shaped plate.

[0010] Furthermore, the corner ends of the folded plate are welded to the top center of the arc-shaped plate.

[0011] Furthermore, the folding plate is an angular block with a certain folding angle, which is adapted to the folding angle of the suspended component.

[0012] Furthermore, the folding angle of the folding plate is 90°, 120°, or 150°.

[0013] Furthermore, the thickness of the folding plate is 4-6 mm.

[0014] Furthermore, the thickness of the arc-shaped plate is 4-6 mm.

[0015] Furthermore, the nut connector is welded to the arc-shaped plate.

[0016] Furthermore, the number of the nut connectors is two or more.

[0017] Furthermore, the folding plate, the arc plate, and the nut connector are made of Q235A or Q235B.

[0018] The beneficial effects of this utility model are: 1. This utility model provides a stable support frame for the corner protector by setting up a folding plate, enabling it to effectively conform to the corners of the object being lifted. This transforms the force distribution between the wire rope or sling and the object from point contact to surface contact, thereby increasing the stress area, dispersing lifting pressure, and preventing damage to the corners of the object. Simultaneously, the smooth arc design of the curved plate significantly reduces friction between the lifting rope and the corners, thus avoiding the risks of wire rope wear, broken wires, and structural damage at the stress point, ultimately improving the overall operational safety factor.

[0019] 2. This utility model has a nut connector welded to the outside of the arc plate. The screw hole of the nut can be fixed with a thin iron wire to provide a temporary anchor point for hoisting operations.

[0020] 3. Only one crane operator is needed to independently complete the installation of the corner protector and the setting of temporary anchor points. No multiple people are required to cooperate, which not only optimizes personnel allocation, but also saves time and labor costs, thereby effectively improving work efficiency.

[0021] 4. The folding plate in this utility model adopts a design with different folding angles, which can adapt to the edges and corners of different types of objects to be lifted, such as metal components, stone, and prefabricated parts. It can be widely used in various scenarios such as construction, ports, and equipment installation, and has strong adaptability. When lifting objects with different folding angles, it is only necessary to replace the corner protector with a matching angle, which is quick and convenient. Attached Figure Description

[0022] Figure 1 This is the left view of this utility model; Figure 2 This is a schematic diagram of a corner protector with a 90° folding angle. Figure 3 This is a schematic diagram of a corner protector structure with a folding angle of 120° for the folded plate; Figure 4 This is a schematic diagram of a corner protector structure with a folding angle of 150° for the folded plate; Among them: 1. Folded plate; 2. Curved plate; 3. Nut connector. Detailed Implementation

[0023] The following is in conjunction with the appendix Figure 1—4. The technical solution of this utility model is clearly and completely described. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] The present invention is described in detail below through specific embodiments, but this does not limit the scope of protection of the present invention. Unless otherwise specified, the experimental methods used in the present invention are all conventional methods, and the experimental equipment, materials, reagents, etc. used can all be obtained commercially.

[0025] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used only for distinction and should not be construed as indicating or implying relative importance.

[0026] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0027] Example 1 The corner protector includes a folded plate 1, an arc-shaped plate 2, and a nut connector 3. The folded plate 1 is located inside the arc-shaped plate 2, and its two ends are connected to the two ends of the arc-shaped plate 2. The corner end of the folded plate 1 is connected to the top center of the arc-shaped plate 2. The nut connector 3 is located outside the arc-shaped plate 2 and is fixedly connected to the top center of the arc-shaped plate 2. The opening direction of the nut connector 3 is perpendicular to the axial direction of the arc-shaped plate 2.

[0028] The two ends of the folding plate 1 are welded to the two ends of the arc plate 2; the corner ends of the folding plate 1 are welded to the top center of the arc plate 2.

[0029] The folding plate 1 is an angular block with a certain folding angle, which is 90°. Figure 2 As shown, its bending angle matches the bending angle of the suspended component. The thickness of the bending plate 1 is 5 mm. The thickness of the arc-shaped plate 2 is 5 mm; the nut connector 3 is welded to the arc-shaped plate 2; there are two nut connectors 3, respectively connected to the two ends of the outer side of the arc-shaped plate 2. The materials of the bending plate 1, the arc-shaped plate 2, and the nut connector 3 are all Q235B.

[0030] Example 2 Corner protector, the bending angle of folding plate 1 is 120°, such as Figure 3 As shown; the thickness of the folding plate 1 is 4 mm; the thickness of the arc plate 2 is 4 mm; the material of the folding plate 1, the arc plate 2 and the nut connector 3 is Q235A.

[0031] Example 3 The corner protector, the folding angle of folding plate 1 is 150°, such as... Figure 4 As shown; the thickness of the folded plate 1 is 6 mm; the thickness of the curved plate 2 is 6 mm.

[0032] Work process: Before lifting, select the corner protector of the corresponding specification according to the angle of the object to be lifted, select the position of the lifting equipment, and attach the folded plate 1 of the corner protector to the corner of the object to be lifted, ensuring that the arc plate 2 completely covers the corner; then use a thin iron wire to pass through the screw hole of the nut connector 3 to fix the corner protector to the object to be lifted, and then wrap the wire rope or sling around the outer side of the corner protector to start the lifting operation.

[0033] This invention provides a stable support frame for the corner protector by incorporating a folding plate, allowing it to effectively conform to the corners of the object being lifted. This transforms the force distribution between the wire rope or sling and the object from point contact to surface contact, increasing the stress area, dispersing lifting pressure, and preventing damage to the object's corners. Simultaneously, the smooth, rounded design of the curved plate significantly reduces friction between the lifting rope and the corners, thus avoiding the risks of wire rope wear, broken strands, and structural damage at the stress point, ultimately improving the overall operational safety.

[0034] This utility model has a nut connector welded to the outside of the arc plate. The screw hole of the nut can be fixed with a thin iron wire to provide a temporary anchor point for hoisting operations.

[0035] Only one crane operator is needed to independently complete the installation of the corner protector and the setting of temporary anchor points. This eliminates the need for multiple people to work together, which not only optimizes personnel allocation but also saves a significant amount of time and labor costs, thereby effectively improving work efficiency.

[0036] The folding plate in this invention features different folding angles, adaptable to the sharp edges of various types of objects being lifted, such as metal components, stone, and prefabricated parts. It can be widely used in various scenarios including construction, ports, and equipment installation, demonstrating strong adaptability. When lifting objects with different folding angles, simply replace the corner protector with one of matching angles—quick and convenient.

[0037] The embodiments described above are merely preferred embodiments of this utility model, and not all embodiments that can be implemented by this utility model. For those skilled in the art, any obvious modifications made without departing from the principles and spirit of this utility model should be considered to be included within the scope of protection of the claims of this utility model. Although this utility model has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of this utility model. In particular, as long as there is no technical conflict, the features in the embodiments disclosed in this utility model can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, this utility model is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An edge protector, characterized in that, It includes a folded plate (1), an arc plate (2), and a nut connector (3). The folded plate (1) is located inside the arc plate (2), and the two ends of the folded plate (1) are connected to the two ends of the arc plate (2). The corner of the folded plate (1) is connected to the top center of the arc plate (2). The nut connector (3) is located outside the arc plate (2) and is fixedly connected to the top center of the arc plate (2). The opening direction of the nut connector (3) is perpendicular to the axis of the arc plate (2).

2. The corner protector according to claim 1, characterized in that, The two ends of the folded plate (1) are welded to the two ends of the arc plate (2).

3. The corner protector according to claim 1, characterized in that, The corner of the folded plate (1) is welded to the top center of the arc plate (2).

4. The corner protector according to claim 1, characterized in that, The folding plate (1) is an angular block with a certain folding angle, and its folding angle is adapted to the folding angle of the suspended component.

5. The corner protector according to claim 4, characterized in that, The folding angle of the folding plate (1) is 90°, 120° or 150°.

6. The corner protector according to claim 1, characterized in that, The thickness of the folding plate (1) is 4-6 mm.

7. The corner protector according to claim 1, characterized in that, The thickness of the arc plate (2) is 4-6 mm.

8. The corner protector according to claim 1, characterized in that, The nut connector (3) and the arc plate (2) are welded together.

9. The corner protector according to claim 1, characterized in that, The number of the nut connectors (3) is two or more.

10. The corner protector according to claim 1, characterized in that, The folding plate (1), the arc plate (2), and the nut connector (3) are made of Q235A or Q235B.

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