Self-chip-removal locking nut
By setting threaded connection grooves, chip drain grooves and mesh pressing points on the nut body, the problem that traditional self-chip nuts cannot be used normally in important and key parts is solved, and a more stable and durable nut and bolt connection is achieved.
Patent Information
- Application Number
- CN202421692950.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-17
- Publication Date
- 2025-05-20
- Estimated Expiration
- 2034-07-17
AI Technical Summary
Traditional self-chip nuts do not have the locking and anti-loosening characteristics and cannot be used normally in tightening occasions in important and critical parts, which limits its application range.
A self-chip-extraction lock nut is designed, with a threaded connection groove in the center of the nut body, and a chip drain groove and a mesh pressure point are set on one side of the threaded connection groove. The chip drain groove is used to discharge metal chips, and the mesh pressure point increases friction and dispersing stress.
Through the design of chip drainage grooves, the friction heat during threaded connection is reduced, and the stability and durability of the connection are improved; the mesh pressure point increases the friction between the nut and the bolt to prevent loosening and breakage.
Smart Images
Figure CN222887138U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of nuts, and particularly relates to a self-chip-removing locking nut. Background Art
[0002] During the driving of an automobile, due to the running jolts, the fastened connection parts may loosen prematurely, posing a hidden danger to the safety of the whole vehicle. Therefore, anti-loosening designs are required for many important connection parts, and fasteners with locking functions are particularly needed. Since traditional self-chip-removing nuts do not have the characteristics of locking and anti-loosening, they cannot be used normally in the fastening occasions of many important key parts, thus limiting their application scope. Summary of the Invention
[0003] In view of this, the utility model provides a self-chip-removing locking nut.
[0004] To achieve the above object, the utility model provides the following technical solutions:
[0005] A self-chip-removing locking nut, comprising a nut body, the nut body having a body portion and flange ends and locking ends provided at both ends of the body portion, a threaded connection groove is opened at the center of the nut body, a chip-removing groove is provided on the groove wall of the threaded connection groove close to the flange end, and a knurled press point is provided on the groove wall of the threaded connection groove close to the locking end.
[0006] Preferably, three chip-removing grooves are provided, and the chip-removing grooves are equidistantly arranged, and the chip-removing grooves extend from the body portion to the flange end.
[0007] Preferably, a plurality of knurled press points are provided, and the knurled press points are evenly distributed on the groove wall of the threaded connection groove close to the locking end, and the knurled press points are formed by protruding from the groove wall of the threaded connection groove.
[0008] Preferably, the cross-section of the threaded connection groove on the side with the knurled press points is elliptical.
[0009] Preferably, the flange end includes a first flange portion and a second flange portion, and the first flange portion is provided on the side of the second flange portion close to the body portion.
[0010] Preferably, the first flange portion is composed of several continuous arc surfaces, the cross-section of the first flange portion is petal-shaped, and the second flange portion is disc-shaped.
[0011] The beneficial effects of the present utility model are as follows: By providing a threaded connection groove for connecting a bolt on the nut body, and a chip removal groove is provided on one side of the threaded connection groove, so that when the bolt and the nut are threadedly connected, the generated metal chips can be discharged in time, avoiding the accumulation of metal chips in the threaded connection groove and affecting the connection effect. In addition, the design of the chip removal groove can also effectively reduce the frictional heat generated during threaded connection, improving the stability and durability of the connection. At the same time, in this design, reticulated indentations are provided on the groove wall of the threaded connection groove near the locking end. These reticulated indentations not only increase the frictional force between the nut and the bolt, making the connection more firm and reliable, but also can disperse the stress generated during connection, preventing the nut or bolt from breaking or loosening when subjected to external forces. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0013] Attached Figure 1 is a schematic structural diagram of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0014] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0015] The following will further describe the present utility model with reference to the accompanying drawings of the specification.
[0016] The present utility model provides the following technical solutions:
[0017] As attached Figure 1As shown, the utility model discloses a self-chip-removing locking nut, which includes a nut body 1. The nut body 1 has a body part 2, and flange ends 3 and locking ends 4 provided at both ends of the body part 2. A threaded connection groove 5 is opened at the center of the nut body 1. A chip-removing groove 6 is provided on the groove wall of the threaded connection groove 5 close to the flange end 3, and knurled pressure points 7 are provided on the groove wall of the threaded connection groove 5 close to the locking end 4. Specifically, in this design, by opening a threaded connection groove 5 for connecting a bolt on the nut body 1, and a chip-removing groove 6 is opened on one side of the threaded connection groove 5, so that when the bolt and the nut are threadedly connected, the generated metal chips can be discharged in time, avoiding the accumulation of metal chips in the threaded connection groove 5 and affecting the connection effect. In addition, the design of the chip-removing groove 6 can also effectively reduce the frictional heat generated during threaded connection, improving the stability and durability of the connection. At the same time, in this design, knurled pressure points 7 are provided on the groove wall of the threaded connection groove 5 close to the locking end 4. These knurled pressure points 7 not only increase the friction between the nut and the bolt, making the connection more firm and reliable, but also can disperse the stress generated during connection, preventing the nut or the bolt from breaking or loosening when subjected to external forces.
[0018] Further, three chip-removing grooves 6 are provided, and the chip-removing grooves 6 are equidistantly arranged, and the chip-removing grooves 6 extend from the body part 2 to the flange end 3. Specifically, in this embodiment, by designing multiple chip-removing grooves 6 and maintaining a uniform spacing between these chip-removing grooves 6, such a design aims to further improve the chip-removing efficiency. Each chip-removing groove 6 extends from the central part of the nut body 1 to the flange end 3. This layout enables the metal chips to be smoothly guided to the chip-removing grooves 6 during the threaded connection process and discharged through these slots, thus minimizing the accumulation of metal chips in the threaded connection groove 5.
[0019] Further, a plurality of knurled pressure points 7 are provided, and the knurled pressure points 7 are evenly distributed on the groove wall of the threaded connection groove 5 close to the locking end 4, and the knurled pressure points 7 are formed by protruding from the groove wall of the threaded connection groove 5. Specifically, in this embodiment, in order to further enhance the connection strength and stability between the nut and the bolt, a plurality of knurled pressure points 7 are provided on the groove wall of the threaded connection groove 5 close to the locking end 4. The knurled pressure points 7 are evenly dispersed on the groove wall. Each knurled pressure point 7 is formed by protruding from the groove wall of the threaded connection groove 5. This design not only increases the contact area, but also enables the nut and the bolt to form more biting points when connected, thus significantly improving the firmness and reliability of the connection.
[0020] Furthermore, the cross section of one side of the threaded connection groove 5 with the textured pressure point 7 is elliptical. Specifically, in this embodiment, the textured pressure point 7 deforms the hexagonal opposite sides by extruding and deforming the internal thread hole of the nut, within the range of 3 to 4 times the pitch length at the end, from a cylindrical hole to an elliptical hole (with a non-circular cross section). During the assembly process, the thread at the elliptical hole is tightly matched with the matching thread, resulting in a certain amount of interference, which increases the friction between the threads. Due to the effect of this friction, the torque for loosening the nut is also relatively increased.
[0021] Furthermore, the flange end 3 includes a first flange portion 9 and a second flange portion 8, and the first flange portion 9 is arranged on a side of the second flange portion 8 close to the main body portion 2. Specifically, in this embodiment, this design of the flange end 3 not only provides a stronger support for the nut, but also increases the flexibility and stability of the connection between the nut and other components. The first flange portion 9 is located between the second flange portion 8 and the main body portion 2, and plays a role of transition and reinforcement, so that the entire nut can better disperse and resist these forces when subjected to external forces, thereby ensuring the stability and durability of the connection.
[0022] Furthermore, the first flange portion 9 is composed of several continuous arc surfaces, the cross section of the first flange portion 9 is petal-shaped, and the second flange portion 8 is disc-shaped. Specifically, in this embodiment, the cross section of the first flange portion 9 composed of several continuous arc surfaces is petal-shaped. This design can disperse and relieve stress through the deformation of the arc surface when subjected to force, thereby improving the fatigue resistance and durability of the nut. At the same time, the second flange portion 8 is disc-shaped, providing a stable base for the nut. The disc shape has good stability, which makes the nut less likely to tilt or shake during connection, further ensuring the accuracy and reliability of the connection.
[0023] The above description of the disclosed embodiments enables professionals in the field to implement or use the utility model. Various modifications to these embodiments will be apparent to professionals in the field, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the utility model. Therefore, the utility model will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A self-chip removal locking nut, characterized in that: It includes a nut body, which has a main body part and a flange end and a locking end arranged at both ends of the main body part. A threaded connection groove is opened in the center of the nut body, a chip removal groove is arranged on the groove wall on one side of the threaded connection groove close to the flange end, and a mesh pressure point is arranged on the groove wall on one side of the threaded connection groove close to the locking end.
2. The self-chip removal locking nut according to claim 1, characterized in that: The three chip removal grooves are arranged at equal intervals, and the chip removal grooves extend from the main body to the flange end.
3. The self-chip removal locking nut according to claim 1, characterized in that: There are multiple reticulated pressure points, which are evenly distributed on a groove wall on one side of the threaded connection groove close to the locking end, and the reticulated pressure points are formed by protruding from the groove wall of the threaded connection groove.
4. The self-chip removal locking nut according to claim 3, characterized in that: The cross section of one side of the threaded connection groove having the mesh pressure point is arranged in an elliptical shape.
5. The self-chip removal locking nut according to claim 1, characterized in that: The flange end portion includes a first flange portion and a second flange portion, wherein the first flange portion is arranged on a side of the second flange portion close to the body portion.
6. The self-chip removal locking nut according to claim 5, characterized in that: The first flange portion is composed of a plurality of continuous arc surfaces, the cross section of the first flange portion is arranged in a petal shape, and the second flange portion is arranged in a disc shape.