High-bearing-capacity screw
By incorporating cross-shaped grooves, metal protrusions, and arc-shaped raised structures on the screws and nuts, the problem of traditional screws being prone to wear under high loads is solved, achieving high load-bearing capacity and durability, and improving the stability and service life of the connection.
Patent Information
- Application Number
- CN202423258375.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-12-26
AI Technical Summary
Traditional screws are prone to wear, damage, or loosening under high loads or harsh environments, affecting the stability and safety of the connection.
Design a high load-bearing capacity screw with a cross groove and metal protrusions on the nut. The metal protrusions are circular and welded to the nut. The side of the nut is an arc-shaped protrusion with striped grooves. The four metal protrusions are symmetrically distributed on the bisector of the included angle of the cross groove.
It improves the load-bearing capacity and wear resistance of screws, enhances the stability and service life of nuts, reduces stress concentration, and provides better grip and visual appeal.
Smart Images

Figure CN223648268U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of screw technology, specifically relating to a high load-bearing capacity screw. Background Technology
[0002] Fasteners, especially screws, are widely used in various industrial and construction sectors to connect and secure various components. Traditional screws often suffer from wear, damage, or loosening when subjected to high loads or operating in harsh environments, which seriously affects the stability and safety of the connection. To improve the load-bearing capacity and durability of screws, structural optimization and improvements are necessary. Utility Model Content
[0003] The main purpose of this invention is to provide a high load-bearing capacity screw, which improves the load-bearing capacity and durability of the screw, and increases the service life of the screw.
[0004] To achieve the above objectives, this utility model provides a high load-bearing capacity screw, which includes a bolt body, a nut, a cross groove, and a metal protrusion on the surface of the nut. The metal protrusion has a circular outline and is welded to the nut.
[0005] The high-load-bearing screw provided by this utility model has a bolt body as the main structure of the screw, used to achieve the functions of fastening and connection. The nut has a cross-shaped groove, a common design, for use with a screwdriver to tighten or loosen the screw. The surface of the nut has metal protrusions with a circular outline, which are welded to the nut to increase the load-bearing capacity and wear resistance of the nut, thereby improving the service life of the screw.
[0006] In one possible implementation, four metal bumps are provided. This design, with four metal bumps, helps to distribute pressure during tightening and improves the stability of the nut.
[0007] In one possible implementation, the four metal protrusions are distributed along the angle bisector of the angle formed by the two adjacent sides of the cross groove. This symmetrical distribution of the four metal protrusions along the angle bisector helps ensure balanced stress distribution on the nut and reduces localized stress concentration.
[0008] In one possible implementation, the nut has a curved, raised side surface. This curved, raised side surface design increases the nut's strength while providing a better visual appeal.
[0009] In one possible implementation, the nut has grooved surfaces on its side. These grooves help increase friction on the nut's side, improving grip during tightening, and also aid in heat dissipation and reduce stress concentration. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of a high-load-bearing screw structure provided by this utility model. Detailed Implementation
[0011] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of the present invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.
[0012] In the description of this application, it should be understood that the terms "upper" and "lower" 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 application and simplifying the description, and do not indicate or imply that the device or element 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 application.
[0013] In the description of this application, the terms "first," "second," etc., 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.
[0014] See attached diagram. Figure 1 , Figure 1 This is a schematic diagram of a high-load-bearing screw structure provided by this utility model, as shown below. Figure 1 As shown, the high load-bearing capacity screw provided by this utility model includes a bolt body 1, the bolt body 1 includes a nut 2, the nut 2 is provided with a cross groove 3, and a metal protrusion 4 is provided on the surface of the nut 2. The metal protrusion 4 has a circular outline and is welded to the nut 2.
[0015] The high-load-bearing screw provided by this utility model has a bolt body 1 as the main structure of the screw, which is used to achieve the functions of fastening and connection. The nut 2 is provided with a cross groove 3, which is a common design, for use with a screwdriver to tighten or loosen. Metal protrusions 4 are provided on the surface of the nut 2. These protrusions have a circular outline and are welded to the nut 2, which increases the load-bearing capacity and wear resistance of the nut 2 and improves the service life of the screw.
[0016] In one possible implementation, four metal bumps 4 are provided. This design of four metal bumps 4 helps to distribute pressure during tightening and improves the stability of the nut 2.
[0017] In one possible implementation, the four metal protrusions 4 are distributed along the angle bisector of the angle formed by two adjacent sides of the cross groove 3. This symmetrical distribution of the four metal protrusions 4 helps ensure balanced stress distribution on the nut 2 and reduces localized stress concentration.
[0018] In one possible implementation, the side of the nut 2 has an arc-shaped protrusion structure. This arc-shaped protrusion structure on the side of the nut 2 increases its strength while providing a better visual effect.
[0019] In one possible implementation, the nut 2 has a groove 5 on its side. The groove 5 on the side of the nut 2 helps increase the friction on its side, improving the gripping force when tightened, and also helps with heat dissipation and reduces stress concentration.
[0020] It is worth mentioning that those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A high-load-bearing screw, characterized in that, The bolt includes a bolt body, which includes a nut. The nut has a cross groove and a metal protrusion on its surface. The metal protrusion has a circular outline and is welded to the nut.
2. The high-load-bearing screw according to claim 1, characterized in that, There are four metal bumps in total.
3. The high load-bearing capacity screw according to claim 2, characterized in that, The four metal protrusions are distributed on the angle bisector of the angle formed by the two adjacent sides of the cross groove.
4. The high-load-bearing screw according to claim 3, characterized in that, The side of the nut has an arc-shaped protrusion structure.
5. The high-load-bearing screw according to claim 4, characterized in that, The nut has striped grooves on its side.