Anti-deformation copper nut fastener
By introducing radial anti-slip components and axial anti-loosening components into the copper nut, the problem of deformation of the copper nut under stress and vibration is solved, achieving higher connection stability and reliability, especially stable connection in humid or oily environments.
Patent Information
- Application Number
- CN202522306599.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-31
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-10-31
AI Technical Summary
Copper nuts are prone to deformation under stress, vibration, or environmental factors, which can lead to a decrease in connection reliability.
Radial anti-slip components and axial anti-loosening components are adopted, including mounting grooves, spring limit posts, telescopic springs, anti-slip teeth, helical compression springs, metal washers, and rubber washers. Through the cooperation of these components, the deformation resistance of the copper nut is improved, and the connection reliability is prevented from decreasing.
It effectively prevents deformation of copper nuts, improves the stability and reliability of connections, and prevents rubber washers from slipping, especially in humid or slightly oily environments, ensuring stable axial anti-loosening function.
Smart Images
Figure CN224679877U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of nut fastener technology, and in particular to a deformation-resistant copper nut fastener. Background Technology
[0002] Nuts are fasteners that are screwed onto bolts or screws. Nuts are an essential component in all manufacturing machinery and are available in several types, including carbon steel, stainless steel, and non-ferrous metals. Although small, nuts are essential fasteners and crucial components for the overall function of machinery. Therefore, the fastening function of nuts is the reason for their existence and use.
[0003] Copper nuts are widely used in detachable connections in electronic equipment, automotive parts, and precision instruments due to their excellent electrical and thermal conductivity and low electrochemical corrosion characteristics when mated with steel bolts. Their core function is to transmit preload through the engagement of the internal thread with the bolt, thereby achieving rigid fixation of the component. However, copper itself has high ductility and low yield strength, and is prone to deformation under stress, vibration, or environmental factors in actual working conditions, which leads to a decrease in connection reliability.
[0004] Therefore, we propose a deformation-resistant copper nut fastener. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a deformation-resistant copper nut fastener.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: A deformation-resistant copper nut fastener includes a copper nut body with uniformly arranged internal threads inside. A step is provided at the opening at the upper end of the copper nut body. A radial anti-slip component is provided inside the copper nut body, and an axial anti-loosening component is provided at the upper end of the step. The radial anti-slip component and the axial anti-loosening component can effectively improve the deformation resistance of the copper nut and prevent the connection reliability from decreasing.
[0007] As a further improvement of this utility model: the radial anti-slip component includes mounting grooves, and three mounting grooves are provided in the middle of the inner end of the copper nut body. Each of the three mounting grooves is provided with a spring limiting post. The mounting grooves are opened axially along the inner wall of the copper nut body and are evenly spaced in a ring, providing storage and movement space for the telescopic spring and the anti-slip teeth, avoiding installation interference caused by exposed components. The setting of the spring limiting post can fix one end of the telescopic spring, preventing the spring from shifting or twisting during the extension and retraction process, ensuring that the spring force is always transmitted in the radial direction, and providing stable thrust for the anti-slip teeth.
[0008] As a further improvement of this utility model: a telescopic spring is provided at the outer end of the spring limiting post, and an anti-slip tooth is provided at the end of the telescopic spring. With the telescopic spring, when the bolt is installed, the bolt thread pushes the anti-slip tooth to compress the spring, avoiding obstruction of installation; after installation, the spring rebounds and pushes the anti-slip tooth to fit against the bolt, forming a radial lock. At the same time, the spring's buffering characteristics can absorb the slight displacement caused by vibration, reducing thread wear. The anti-slip tooth fits tightly against the bolt thread side through the spring thrust, and the serrated pattern enhances the mechanical engagement. The evenly distributed anti-slip tooth forms a multi-point lock, preventing relative rotation between the nut and the bolt. At the same time, the radial pressure of the anti-slip tooth on the bolt can disperse the force on the copper nut, avoiding deformation caused by local stress concentration in the internal thread.
[0009] As a further improvement of this utility model: the axial anti-loosening component includes a helical compression spring. Several helical compression springs are evenly arranged at the upper end of the step. A metal washer is provided at the upper end of the helical compression spring. The helical compression spring can provide continuous axial elastic force, which is then transmitted to the rubber washer through the metal washer. The metal washer can convert the dispersed elastic force of the helical compression spring into uniform pressure and transmit it to the rubber washer, avoiding local crushing caused by direct contact between the spring and the rubber. At the same time, the rigidity of the metal washer can prevent excessive deformation of the rubber washer and ensure stable transmission of axial force.
[0010] As a further improvement of this utility model: a rubber washer is provided at the upper end of the metal washer, and the outer surface of the rubber washer is uniformly provided with wavy anti-slip texture. The rubber washer can tightly fit the surface of the connected parts through its own flexible deformation, increase the static friction coefficient, and inhibit the axial slippage of the nut. The elastic properties of rubber can absorb impact and vibration, reduce scratches on the surface of the connected parts, and adapt to the slight unevenness of the surface of the connected parts to ensure a close fit. The wavy anti-slip texture can further increase the friction area between the rubber washer and the connected parts, improve the anti-slip effect, and especially in humid or slightly oily environments, it can effectively prevent the rubber washer from slipping and ensure the stability of the axial anti-loosening function.
[0011] As a further embodiment of this utility model: the radial anti-slip components are in three groups and are axially opened along the inner wall of the copper nut body, and the three groups of radial anti-slip components are evenly spaced in a ring.
[0012] Compared with the prior art, this utility model provides a deformation-resistant copper nut fastener, which has the following beneficial effects: 1. This utility model effectively improves the deformation resistance of copper nuts by installing radial anti-slip components and axial anti-loosening components, preventing a decrease in connection reliability. The mounting groove in the radial anti-slip component provides storage and movement space for the telescopic spring and anti-slip teeth, avoiding installation interference caused by exposed components. When installing the bolt, the bolt thread pushes the anti-slip teeth to compress the spring, avoiding obstruction of installation. After installation, the spring rebounds and pushes the anti-slip teeth to fit against the bolt, forming a radial lock. At the same time, the spring's buffering characteristics can absorb the slight displacement caused by vibration, reducing thread wear. The anti-slip teeth fit tightly against the bolt thread side through the spring thrust, and the serrated pattern enhances mechanical engagement. The evenly distributed anti-slip teeth form a multi-point lock, preventing relative rotation between the nut and the bolt. Meanwhile, the radial pressure of the anti-slip teeth on the bolt can disperse the force on the copper nut, avoiding deformation caused by local stress concentration in the internal thread, thus improving the practicality of the deformation-resistant copper nut fastener.
[0013] 2. In this utility model, the axial anti-loosening component utilizes a helical compression spring to provide continuous axial elastic force, which is then transmitted to a rubber washer via a metal washer. The metal washer converts the dispersed elastic force of the helical compression spring into uniform pressure, preventing localized crushing caused by direct contact between the spring and the rubber. Simultaneously, the rigidity of the metal washer prevents excessive deformation of the rubber washer, ensuring stable transmission of axial force. The rubber washer, through its flexible deformation, tightly conforms to the surface of the connected parts, increasing the static friction coefficient and inhibiting axial slippage of the nut. The elastic properties of rubber absorb impact and vibration, reducing scratches on the surface of the connected parts, while adapting to minor unevenness on the surface to ensure a close fit. The wavy anti-slip texture further increases the friction area between the rubber washer and the connected parts, enhancing the anti-slip effect. Especially in humid or slightly oily environments, it effectively prevents the rubber washer from slipping, ensuring stable axial anti-loosening function and improving the stability of the anti-deformation copper nut fastener.
[0014] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of a deformation-resistant copper nut fastener proposed in this utility model. Figure 2 This is a schematic diagram of the cross-sectional structure of a copper nut for a deformation-resistant copper nut fastener proposed in this utility model. Figure 3 This is a schematic diagram of the cross-sectional structure of a copper nut for a deformation-resistant copper nut fastener proposed in this utility model. Figure 4 This is an enlarged structural diagram of point A of the anti-deformation copper nut fastener proposed in this utility model.
[0016] In the diagram: 1. Copper nut body; 2. Internal thread; 3. Step; 4. Radial anti-slip component; 41. Mounting groove; 42. Spring limit post; 43. Telescopic spring; 44. Anti-slip teeth; 5. Axial anti-loosening component; 51. Helical compression spring; 52. Metal washer; 53. Rubber washer; 54. Wavy anti-slip texture. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0018] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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 utility model.
[0019] Example: Please refer to Figures 1-4 This utility model provides a technical solution: A deformation-resistant copper nut fastener includes a copper nut body 1, with internal threads 2 evenly distributed inside the copper nut body 1. A step 3 is provided at the opening at the upper end of the copper nut body 1. A radial anti-slip component 4 is provided inside the copper nut body 1. An axial anti-loosening component 5 is provided at the upper end of the step 3. The radial anti-slip component 4 and the axial anti-loosening component 5 can effectively improve the deformation resistance of the copper nut and prevent the connection reliability from decreasing.
[0020] In this embodiment, the preferred radial anti-slip component 4 includes mounting grooves 41. Three mounting grooves 41 are provided in the middle of the inner end of the copper nut body 1. Each of the three mounting grooves 41 is provided with a spring limiting post 42. The mounting grooves 41 are opened axially along the inner wall of the copper nut body 1 and are evenly spaced in a ring to provide storage and movement space for the telescopic spring 43 and the anti-slip teeth 44, avoiding installation interference caused by exposed components. The setting of the spring limiting post 42 can fix one end of the telescopic spring 43, preventing the spring from shifting or twisting during the extension and retraction process, ensuring that the spring force is always transmitted in the radial direction, and providing stable thrust for the anti-slip teeth 44.
[0021] In this embodiment, a telescopic spring 43 is preferably provided at the outer end of the spring limiting post 42, and an anti-slip tooth 44 is provided at the end of the telescopic spring 43. With the provision of the telescopic spring 43, when the bolt is installed, the bolt thread pushes the anti-slip tooth 44 to compress the spring, so as to avoid obstructing the installation. After the installation is completed, the spring rebounds and pushes the anti-slip tooth 44 to fit against the bolt, forming a radial lock. At the same time, the buffering characteristics of the spring can absorb the slight displacement caused by vibration and reduce the wear of the thread. The anti-slip tooth 44 fits tightly against the bolt thread side through the spring thrust, and the serrated pattern enhances the mechanical engagement. The evenly distributed anti-slip tooth 44 forms a multi-point lock to prevent the relative rotation of the nut and the bolt. At the same time, the radial pressure of the anti-slip tooth 44 on the bolt can disperse the force on the copper nut and avoid deformation caused by local stress concentration in the internal thread 2.
[0022] In this embodiment, the preferred axial anti-loosening component 5 includes a helical compression spring 51. A plurality of helical compression springs 51 are evenly arranged at the upper end of the step 3. A metal washer 52 is provided at the upper end of the helical compression spring 51. The helical compression spring 51 can provide continuous axial elastic force, which is then transmitted to the rubber washer 53 through the metal washer 52. The metal washer 52 can convert the dispersed elastic force of the helical compression spring 51 into uniform pressure and transmit it to the rubber washer 53, avoiding local crushing caused by direct contact between the spring and the rubber. At the same time, the rigidity of the metal washer 52 can prevent the rubber washer 53 from excessive deformation, ensuring stable transmission of axial force.
[0023] In this embodiment, a rubber washer 53 is preferably provided at the upper end of the metal washer 52. The outer surface of the rubber washer 53 is uniformly provided with wavy anti-slip texture 54. The rubber washer 53 can tightly fit the surface of the connected parts through its own flexible deformation, increasing the static friction coefficient and inhibiting the axial slippage of the nut. The elastic properties of rubber can absorb impact and vibration, reduce scratches on the surface of the connected parts, and adapt to the slight unevenness of the surface of the connected parts to ensure a close fit. The wavy anti-slip texture 54 can further increase the friction area between the rubber washer 53 and the connected parts, improve the anti-slip effect, especially in humid or slightly oily environments, it can effectively prevent the rubber washer 53 from slipping and ensure the stability of the axial anti-loosening function.
[0024] In this embodiment, the preferred radial anti-slip component 4 is three sets and is axially opened along the inner wall of the copper nut body 1, and the three sets of radial anti-slip components 4 are evenly spaced in a ring.
[0025] Working Principle: In this embodiment, the anti-deformation copper nut fastener is used by aligning the threaded end of the bolt to be tightened with the inlet of the internal thread 2 of the copper nut body 1, ensuring that the bolt axis is coaxial with the nut axis. Then, the bolt is rotated clockwise, and the bolt thread surface contacts the tip of the anti-slip tooth 44, generating a radial thrust. This thrust overcomes the preload of the telescopic spring 43, causing the spring to compress radially within the mounting groove 41. The anti-slip tooth 44 slides into the mounting groove 41, and the tooth tip retracts into the inner side of the internal thread 2, avoiding jamming with the bolt thread and ensuring that the bolt can be continuously screwed in. During this process, the spring limiting post 42 fixes one end of the telescopic spring 43 to prevent the spring from twisting or shifting, ensuring the spring's elasticity. The force is always transmitted radially to avoid abnormal movement of the anti-slip teeth 44 due to spring misalignment. When the bolt is tightened to the preset torque, the copper nut body 1 is in contact with the connected part, and tightening stops. At this time, the radial thrust of the bolt thread on the anti-slip teeth 44 disappears, the telescopic spring 43 releases its elastic potential energy, and pushes the anti-slip teeth 44 radially inward. The tooth tips are tightly in contact with the bolt thread side, forming a mechanical engagement. The three sets of evenly distributed anti-slip teeth 44 form a three-point lock, preventing relative rotation between the copper nut body 1 and the bolt through friction and engagement force. At the same time, the radial pressure of the anti-slip teeth 44 on the bolt can disperse the force on the copper nut body 1, avoiding local stress concentration on the internal thread 2. To prevent the collapse of the internal thread 2 or the radial expansion of the copper nut body 1, as the bolt is tightened, the step 3 at the upper end of the copper nut body 1 pushes the axial anti-loosening component 5 towards the connected part: First, the helical compression spring 51 contacts the metal washer 52 and begins to compress, generating a continuous axial elastic force; the metal washer 52 converts the dispersed elastic force of the spring into uniform pressure, which is transmitted to the rubber washer 53, avoiding local crushing caused by direct contact between the spring and the rubber. Under the pressure of the metal washer 52, the rubber washer 53 undergoes flexible deformation and fits tightly against the surface of the connected part. Its nitrile rubber material can significantly improve the static friction coefficient, suppressing the axial sliding of the copper nut body 1; at the same time, the rubber... The elastic properties of the rubber can absorb the slight displacement caused by equipment vibration or impact, reduce scratches on the surface of the connected parts, and adapt to the slight unevenness of the surface of the connected parts to ensure a tight fit. The wave anti-slip texture 54 on the outer surface of the rubber washer 53 further increases the friction area, especially in humid or slightly oily environments, which can effectively prevent the rubber washer 53 from slipping, improve the axial anti-loosening effect, and ensure connection stability. When disassembly is required, rotate the bolt counterclockwise or rotate the copper nut body 1 in the opposite direction. The bolt thread surface contacts the anti-slip tooth 44 again and generates radial thrust, pushing the anti-slip tooth 44 to compress the telescopic spring 43. The tooth tip retracts into the mounting groove 41, releasing the radial lock, and the bolt can be unscrewed smoothly.
[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A deformation-resistant copper nut fastener, comprising a copper nut body (1), characterized in that: The copper nut body (1) has internal threads (2) evenly arranged inside. The upper opening of the copper nut body (1) has a step (3). The interior of the copper nut body (1) has a radial anti-slip component (4). The upper end of the step (3) has an axial anti-loosening component (5).
2. The anti-deformation copper nut fastener according to claim 1, characterized in that: The radial anti-slip component (4) includes a mounting groove (41). Three mounting grooves (41) are provided in the middle of the inner end of the copper nut body (1). Spring limiting posts (42) are provided inside the three mounting grooves (41).
3. The anti-deformation copper nut fastener according to claim 2, characterized in that: The outer end of the spring limiting post (42) is provided with a telescopic spring (43), and the end of the telescopic spring (43) is provided with anti-slip teeth (44).
4. The anti-deformation copper nut fastener according to claim 1, characterized in that: The axial anti-loosening component (5) includes a helical compression spring (51). Several helical compression springs (51) are evenly arranged at the upper end of the step (3), and a metal washer (52) is arranged at the upper end of the helical compression spring (51).
5. A deformation-resistant copper nut fastener according to claim 4, characterized in that: The upper end of the metal washer (52) is provided with a rubber washer (53), and the outer surface of the rubber washer (53) is uniformly provided with wavy anti-slip texture (54).
6. The anti-deformation copper nut fastener according to claim 1, characterized in that: The radial anti-slip components (4) are in three groups and are axially opened along the inner wall of the copper nut body (1). The three groups of radial anti-slip components (4) are evenly spaced in a ring.