Rotary self-locking nut

Abstract

The utility model relates to the technical field of fasteners, and discloses a rotary self-locking type nut which comprises a nut end, the nut end is formed by machining a basic rectangle, a first chamfer and a second chamfer are arranged at one corner and the opposite side of the basic rectangle, the first chamfer and the second chamfer are in central symmetry, and the first chamfer and the second chamfer are arranged in parallel. The other corner and the opposite corner of the rectangle are provided with a first notch and a second notch, and the first notch and the second notch are in central symmetry; the through hole is formed in the center point of the end of the nut, and a convolution thread is formed in the through hole. The rotary self-locking type nut can provide an additional grasping point, is convenient to operate by using a tool (such as a wrench), can increase the friction force between the nut and the contact surface, and further improves the anti-loosening effect.

Description

Technical Field

[0001] The utility model relates to the technical field of fasteners, in particular to a rotary self-locking nut. Background Art

[0002] The existing self-locking nut is a specially designed fastener designed to provide more reliable anti-loosening performance, especially in high-vibration and high-load working environments. Through its unique structure and operating principle, this type of nut can effectively prevent loosening caused by vibration or impact, thereby ensuring the security and stability of the connection.

[0003] Traditional nut and bolt combinations provide good fastening under static conditions, but they are prone to loosening under dynamic conditions (such as mechanical vibration and temperature fluctuations). Loosening not only leads to joint failure but can also cause serious safety issues. Therefore, developing a nut that can maintain stable fastening under various working conditions has become a critical technical requirement.

[0004] Therefore, there is an urgent need for a rotary self-locking nut to solve the technical problem that the existing traditional nut and bolt combination is prone to loosening in a dynamic environment. Utility Model Content

[0005] In view of this, the utility model proposes a rotating self-locking nut, which aims to solve the technical problem that the existing traditional nut and bolt combination is prone to loosening in a dynamic environment.

[0006] The utility model provides a rotary self-locking nut, comprising:

[0007] A nut end, wherein the nut end is machined from a basic rectangle, and a first chamfer and a second chamfer are provided at one corner of the basic rectangle and an opposite side thereof, and the first chamfer and the second chamfer are centrally symmetrical, and a first notch and a second notch are provided at another corner of the rectangle and an opposite corner thereof, and the first notch and the second notch are centrally symmetrical;

[0008] A through hole is provided at the center point of the nut end, and a spiral thread is provided in the through hole.

[0009] Preferably, the aspect ratio of the basic rectangle of the nut end is 3:2.

[0010] Preferably, a screw rod extends below the nut end, and the through hole penetrates the screw rod, and the diameter of the screw rod is equal to the width of the basic rectangle of the nut end.

[0011] Preferably, the radii of the first chamfer and the second chamfer are R1, and the radii of the first cutout and the second cutout are R2, wherein R2>R1.

[0012] Preferably, a first mounting groove is provided on the bottom surface of the nut end.

[0013] Preferably, a first rubber ring is provided in the first installation groove.

[0014] Preferably, a chamfer is provided at the interface between the nut end and the through hole, and a second mounting groove is provided below the chamfer.

[0015] Preferably, a second rubber ring is provided in the second installation groove.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] The first chamfer and the second chamfer are arranged symmetrically around the center, which not only facilitates the installation and removal of the nut, but also ensures that the nut is evenly stressed during tightening, reduces stress concentration, and improves the durability and reliability of the nut. The first notch and the second notch are also symmetrical around the center. This design provides additional gripping points for easy operation with tools (such as wrenches), while also increasing the friction between the nut and the contact surface, further enhancing the anti-loosening effect. In summary, the basic rectangular design and its special chamfers and notches enable it to adapt to different types of installation environments and applications, especially those requiring high stability and vibration resistance, such as mechanical equipment and vehicle engineering. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present invention. The same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0019] Figure 1 A schematic diagram of the top surface structure of a rotary self-locking nut provided in an embodiment of the utility model;

[0020] Figure 2 A schematic side plan view of the rotary self-locking nut provided in an embodiment of the utility model.

[0021] In the figure: 1, nut end; 11, first mounting groove; 2, through hole; 21, chamfer; 22, second mounting groove; 31, first rubber ring; 32, second rubber ring; 4, spiral thread. DETAILED DESCRIPTION

[0022] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0023] In the description of this application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are 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, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0024] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout this application, unless otherwise specified, "plurality" means two or more.

[0025] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0026] like Figure 1 As shown, this embodiment provides a rotating self-locking nut, comprising:

[0027] The nut end 1 is processed from a basic rectangle, and a first chamfer 21 and a second chamfer 21 are provided at one corner of the basic rectangle and its opposite side, and the first chamfer 21 and the second chamfer 21 are centrally symmetrical, and the other corner of the rectangle and its opposite corner are provided with a first notch and a second notch, and the first notch and the second notch are centrally symmetrical;

[0028] A through hole 2 is provided at the center of the nut end 1 , and a spiral thread 4 is provided in the through hole 2 .

[0029] Specifically, the nut end 1 is machined from a basic rectangular shape. This design provides the nut with high structural strength and stability, while also facilitating manufacturing and standardized production. The through hole 2 is located at the geometric center of the nut, ensuring uniform force during tightening and preventing eccentric torque.

[0030] It is understandable that a first chamfer 21 and a second chamfer 21 are provided at one corner of the basic rectangle and its opposite side, and these two chamfers 21 are centrally symmetrical. The chamfer 21 can reduce the friction between the nut and tools (such as a wrench) during installation, making the operation smoother. The centrally symmetrical chamfer 21 design ensures that the nut is evenly stressed during the tightening process, reduces stress concentration, and extends the service life of the nut. The other corner of the rectangle and its opposite corner are provided with a first notch and a second notch, and these two notches are also centrally symmetrical. The notch can provide additional gripping points, increase the friction between the nut and the contact surface, and further improve the anti-loosening effect. The notch can serve as a tool clamping point, making it convenient to use tools such as wrenches for installation and removal. The centrally symmetrical notch design helps optimize the stress distribution of the nut during the tightening process and avoid local overload.

[0031] In some embodiments of the present application, the aspect ratio of the basic rectangle of the nut end 1 is 3:2.

[0032] Specifically, the main purposes of this proportion design are:

[0033] Optimize space utilization: The 3:2 ratio ensures the structural strength of the nut. In addition, this ratio helps to maintain the balance of the nut during tightening, reduces shaking during rotation, and ensures the stability and reliability of the nut.

[0034] In some embodiments of the present application, a screw rod extends below the nut end 1 , and the through hole 2 penetrates the screw rod, and the diameter of the screw rod is equal to the width of the basic rectangle of the nut end 1 .

[0035] Specifically, the extended portion of the screw can increase the connection length between the nut and the bolt, providing greater tensile strength and stability. The diameter of the screw is equal to the width of the basic rectangle of the nut end 1, and this design ensures the overall coordination of the screw and the nut.

[0036] In some embodiments of the present application, the radius of the first chamfer 21 and the second chamfer 21 is R1, and the radius of the first cutout and the second cutout is R2, wherein R2>R1.

[0037] Specifically, the larger R2 radius cut can better disperse stress when the nut is subjected to a large load, avoid local stress concentration, and extend the service life of the nut.

[0038] In some embodiments of the present application, a first mounting groove 11 is formed on the bottom surface of the nut end 1 .

[0039] In some embodiments of the present application, a first rubber ring 31 is disposed in the first installation groove 11 .

[0040] Specifically, a first mounting groove 11 is provided on the bottom surface of the nut end 1 , and the mounting groove is used to accommodate a rubber ring, which can form a seal between the nut and the connector to prevent liquid or gas leakage.

[0041] The rubber ring can increase the friction between the nut and the connecting part, further improving the anti-loosening effect and bringing a self-locking effect. In addition, the rubber ring can act as a buffer when the nut is impacted, reducing the impact of vibration on the nut and extending its service life.

[0042] In addition, it can prevent moisture, dust, etc. in the external environment from entering the inside of the nut, protecting the thread from corrosion.

[0043] In some embodiments of the present application, a chamfer 21 is provided at the interface between the nut end 1 and the through hole 2 , and a second mounting groove 22 is provided below the chamfer 21 .

[0044] In some embodiments of the present application, a second rubber ring 32 is disposed in the second installation groove 22 .

[0045] Specifically, a chamfer 21 is provided at the interface between the nut end 1 and the through hole 2. The chamfer 21 can smooth the transition between the nut end 1 and the through hole 2, reduce stress concentration, and prevent the nut from cracking or being damaged during the tightening process. The chamfer 21 can make it easier to align the nut with the bolt during installation, reducing the difficulty of installation. A second mounting groove 22 is provided below the chamfer 21. The second mounting groove 22 is used to accommodate the second rubber ring 32 to form a double-layer seal, further improving the sealing performance and preventing leakage. The second rubber ring 32 can increase the friction between the nut and the bolt, further improving the anti-loosening performance. In addition, the second rubber ring 32 has the same self-locking effect as the first rubber ring 31, and can play a role in impact resistance and shock absorption.

[0046] In summary, the beneficial effects of this embodiment are:

[0047] The self-spinning lock nut provided in this embodiment not only offers excellent anti-loosening performance, but also offers excellent sealing and easy operation. Its unique geometry and internal structure enable it to maintain a stable tightening state under various operating conditions, making it particularly suitable for high-vibration and high-load applications. Furthermore, the multiple rubber rings provide additional sealing and cushioning functions, further enhancing the nut's reliability and durability.

[0048] Those skilled in the art will understand that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A self-locking nut, characterized in that: include: A nut end, wherein the nut end is machined from a basic rectangle, and a first chamfer and a second chamfer are provided at one corner of the basic rectangle and an opposite side thereof, and the first chamfer and the second chamfer are centrally symmetrical, and a first notch and a second notch are provided at another corner of the rectangle and an opposite corner thereof, and the first notch and the second notch are centrally symmetrical; A through hole is provided at the center point of the nut end, and a spiral thread is provided in the through hole.

2. The self-locking nut according to claim 1, characterized in that: The aspect ratio of the basic rectangle of the nut end is 3:

2.

3. The self-locking nut according to claim 2, characterized in that: A screw rod extends below the nut end, and the through hole penetrates the screw rod. The diameter of the screw rod is equal to the width of the basic rectangle of the nut end.

4. The self-locking nut according to claim 3, characterized in that: The radius of the first chamfer and the second chamfer is R1, and the radius of the first cutout and the second cutout is R2, wherein R2>R1.

5. The swivel self-locking nut according to claim 4, characterized in that: A first mounting groove is formed on the bottom surface of the nut end.

6. The swivel self-locking nut according to claim 5, characterized in that: A first rubber ring is arranged in the first installation groove.

7. The swivel self-locking nut according to claim 6, characterized in that: A chamfer is provided at the interface between the nut end and the through hole, and a second mounting groove is provided below the chamfer.

8. The swivel self-locking nut according to claim 7, characterized in that: A second rubber ring is arranged in the second installation groove.

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