Locking nut for mounting a shock absorber and vehicle

Abstract

The utility model discloses a locking nut and vehicle for installing shock absorber, the utility model relates to nut technical field, locking nut includes: the nut body forms the threaded hole, and the nut body has locking structure to restrict locking nut loosening, along the axial direction of threaded hole, second flange is located one side of nut body and is fixedly connected with nut body, and second flange sets up along the circumference direction of threaded hole around threaded hole, and first flange is fixed in the outer circumferential wall of second flange, and first flange sets up along the circumference direction of second flange around second flange, and first flange and second flange end portion of deviating from nut body abut. Therefore, enough effective reduction locking nut and the connecting torque attenuation risk between shock absorber, also can increase locking nut and the contact area of connected piece (shock absorber or vehicle body), and then can avoid the risk of connected piece stress concentration structure damage, and the connecting performance of lifting locking nut.

Description

Technical Field

[0001] This utility model relates to the field of nut technology, and in particular to a locking nut for installing shock absorbers. Background Technology

[0002] In related technologies, existing nuts used for installing shock absorbers do not have a locking function. Directly tightening them onto the vehicle body poses a risk of torque attenuation. Furthermore, the contact area between the bottom surface of the nut and the vehicle body is too small, which can lead to structural damage to the vehicle body under heavy working conditions. In addition, the clamping length of existing nuts used for installing shock absorbers is too short, making them more prone to loosening, slippage, and unreliable connection. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. Therefore, one objective of this invention is to provide a locking nut for installing a shock absorber, which can effectively reduce the risk of torque attenuation between the locking nut and the shock absorber, and also prevent stress concentration at the connection point from causing crushing.

[0004] According to this utility model, a vehicle having the above-mentioned locking nut for mounting a shock absorber is further proposed.

[0005] According to an embodiment of the present invention, a locking nut for installing a shock absorber includes:

[0006] The nut body has a threaded hole and a locking structure to prevent the nut from loosening.

[0007] The flange portion includes a first flange and a second flange. Along the axial direction of the threaded hole, the second flange is located on one side of the nut body and is fixedly connected to the nut body. The second flange is arranged around the threaded hole in the circumferential direction. The first flange is fixed to the outer peripheral wall of the second flange. The first flange is arranged around the second flange in the circumferential direction, and the ends of the first flange and the second flange that are away from the nut body are adjacent to each other.

[0008] According to the embodiment of this utility model, the locking nut for installing a shock absorber has a locking structure on the nut body to limit the loosening of the locking nut, which can effectively reduce the risk of torque attenuation between the locking nut and the shock absorber. Along the axial direction of the threaded hole, the second flange is located on one side of the nut body and is fixedly connected to the nut body. The second flange is arranged around the threaded hole in the circumferential direction to increase the clamping length of the locking nut on the shock absorber, which can improve the connection performance of the locking nut. The first flange is fixed to the outer peripheral wall of the second flange. The first flange is arranged around the second flange in the circumferential direction to increase the contact area between the locking nut and the connected part (shock absorber or body), thereby avoiding the risk of structural damage due to concentrated force on the connected part.

[0009] According to some embodiments of the present invention, the second flange has a threadless mounting through hole, the mounting through hole and the threaded hole are arranged opposite to each other, and the central axis of the mounting through hole and the central axis of the threaded hole coincide.

[0010] According to some embodiments of this utility model, the diameter of the threaded hole is smaller than the diameter of the mounting through hole.

[0011] According to some embodiments of this utility model, the locking structure is a nylon insert, which is embedded in the end of the nut body away from the second flange.

[0012] According to some embodiments of this utility model, the internal thread of the threaded hole is a wedge-shaped thread, and the wedge-shaped thread is a locking structure.

[0013] According to some embodiments of the present invention, the end face of the second flange away from the nut body and the end face of the first flange away from the nut body are coplanar.

[0014] According to some embodiments of the present invention, the cross-sectional shape of the nut body is polygonal.

[0015] According to some embodiments of the present invention, the cross-sectional shape of the first flange and the cross-sectional shape of the second flange are both circular.

[0016] According to some embodiments of the present invention, the outer peripheral wall of the nut body is formed with an anti-slip structure.

[0017] The vehicle according to an embodiment of the present invention includes the locking nut for mounting the shock absorber as described in the above embodiment.

[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0020] Figure 1 This is a cross-sectional view of the first embodiment of the locking nut of this utility model;

[0021] Figure 2 This is a front view of the first embodiment of the locking nut of this utility model;

[0022] Figure 3 This is a cross-sectional view of the second embodiment of the locking nut of this utility model;

[0023] Figure 4 This is a front view of the second embodiment of the locking nut of this utility model.

[0024] Figure label:

[0025] Locking nut 100;

[0026] Nut body 10; Threaded hole 11;

[0027] Flange 20; First flange 21; Second flange 22; Mounting through hole 221;

[0028] Locking structure 30. Detailed Implementation

[0029] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0030] The following is for reference. Figures 1-4 The present invention describes a locking nut 100 for mounting a shock absorber and a vehicle according to an embodiment of the present invention. The locking nut 100 includes:

[0031] The nut body 10 has a threaded hole 11 and a locking structure 30 to restrict the locking nut 100 from loosening.

[0032] Flange portion 20 includes a first flange 21 and a second flange 22. Along the axial direction of the threaded hole 11, the second flange 22 is located on one side of the nut body 10 and is fixedly connected to the nut body 10. The second flange 22 is arranged around the threaded hole 11 in the circumferential direction. The first flange 21 is fixed to the outer peripheral wall of the second flange 22. The first flange 21 is arranged around the second flange 22 in the circumferential direction, and the ends of the first flange 21 and the second flange 22 that are away from the nut body 10 are adjacent to each other.

[0033] The nut body 10 has a threaded hole 11 for assembling with fasteners (such as bolts, screws, and threaded rods) to achieve a connection. The nut body 10 has a locking structure 30, which can be constructed as a nylon insert, wedge thread, spring washer, etc., and can be flexibly selected according to actual conditions to adapt to different working conditions.

[0034] During vehicle operation, the locking nut 100 is often subjected to external forces such as vibration and impact. Under the influence of vibration and impact, the locking nut 100 gradually loosens, leading to connection failure, equipment failure, or even safety accidents. The locking structure 30 can effectively resist these external forces, maintain the connection stability between the locking nut 100 and the fastener, and ensure stable vehicle operation.

[0035] The flange portion 20 includes a first flange 21 and a second flange 22. Along the axial direction of the threaded hole 11, the second flange 22 is located on one side of the nut body 10 and is fixedly connected to the nut body 10. For example, the second flange 22 is integrally formed with the nut body 10, or the second flange 22 is welded to the nut body 10. However, this utility model is not limited to this. The second flange 22 and the nut body 10 can also be connected in other ways, as long as the second flange 22 is fixedly connected to the nut body 10.

[0036] The second flange 22 is arranged around the threaded hole 11 circumferentially, which is equivalent to adding an extension structure between the nut body 10 and the connected part (shock absorber or body). This extends the contact length between the nut body 10 and the connected part, making the clamping length of the nut longer and the actual clamping force distribution wider. Ordinary nuts have a short clamping length, and the preload is concentrated in the beginning section of the thread, which can easily lead to excessive local stress, causing deformation of the connected part or thread wear. By setting the second flange 22 to extend the clamping length, the preload is evenly distributed over a larger area, significantly reducing the peak local stress. The frictional torque between the threaded pairs increases accordingly (the frictional torque is proportional to the contact length). Under vibration or impact conditions, the longer contact surface can effectively resist the relative rotation between the locking nut 100 and the fastener, thereby improving the anti-loosening performance and connection reliability of the locking nut 100.

[0037] The first flange 21 is fixed to the outer peripheral wall of the second flange 22. The first flange 21 is arranged around the second flange 22 along the circumference. The arrangement of the first flange 21 increases the contact area between the locking nut 100 and the connected component (shock absorber or vehicle body; when the bottom surface of the first flange 21 contacts the shock absorber, the shock absorber is the connected component described herein; when the bottom surface of the first flange 21 contacts the vehicle body, the vehicle body is the connected component described herein). When the locking nut 100 is tightened, the preload of the fastener can be more evenly distributed to the connected component, avoiding local stress concentration and reducing deformation or damage to the connected component due to uneven force, thereby improving the stability and reliability of the connection.

[0038] Furthermore, the first flange 21 and the second flange 22 are adjacent to the ends of the nut body 10, which further enhances the overall strength and rigidity of the locking nut 100, making it less prone to deformation or damage when subjected to large loads, and thus helping to extend the service life of the locking nut 100.

[0039] According to the embodiment of the present invention, the locking nut 100 for installing a shock absorber has a locking structure 30 provided on the nut body 10 to restrict the loosening of the locking nut 100, which can effectively reduce the risk of torque attenuation between the locking nut 100 and the shock absorber. Along the axial direction of the threaded hole 11, the second flange 22 is located on one side of the nut body 10 and is fixedly connected to the nut body 10. The second flange 22 is arranged around the threaded hole 11 in the circumferential direction to increase the clamping length of the locking nut 100 on the shock absorber, which can improve the connection performance of the locking nut 100. The first flange 21 is fixed to the outer peripheral wall of the second flange 22. The first flange 21 is arranged around the second flange 22 in the circumferential direction to increase the contact area between the locking nut 100 and the connected part (shock absorber or vehicle body), thereby avoiding the risk of structural damage due to concentrated force on the connected part.

[0040] According to some embodiments of the present invention, such as Figure 1 and Figure 3 As shown, the second flange 22 has a threadless mounting through hole 221. The mounting through hole 221 and the threaded hole 11 are arranged opposite to each other, and the central axis of the mounting through hole 221 and the central axis of the threaded hole 11 coincide.

[0041] The mounting through hole 221 and the threaded hole 11 are positioned opposite each other, allowing the connection force to be evenly transmitted to the second flange 22 and the nut body 10 through the fastener. This evenly distributes the load to prevent structural deformation or damage caused by excessive local stress. Furthermore, the central axis of the mounting through hole 221 and the central axis of the threaded hole 11 coincide, ensuring that the fastener can be precisely aligned with the threaded hole 11 after passing through the mounting through hole 221 and tightened. This avoids loosening of the connection or stress concentration due to axial misalignment and effectively prevents fastener breakage or nut loosening caused by vibration or impact.

[0042] According to some embodiments of the present invention, such as Figure 1 and Figure 3 As shown, the diameter of the threaded hole 11 is smaller than the diameter of the mounting through hole 221.

[0043] Among them, the mounting through hole 221 has a larger diameter, which can provide a loose passage for fasteners to pass through and play a guiding role. Operators can quickly insert fasteners without precise alignment, which helps to shorten assembly time.

[0044] According to some embodiments of the present invention, such as Figure 1 As shown, the internal thread of the threaded hole 11 is a wedge-shaped thread, and the wedge-shaped thread is a locking structure 30.

[0045] Among them, such as Figure 1As shown in the first embodiment of this utility model, the internal thread of the threaded hole 11 is a wedge-shaped thread, and the wedge-shaped thread is a locking structure 30. The wedge-shaped thread has a 30° wedge-shaped slope at the root of the internal thread. When the fastener is screwed in, the tip of the fastener tooth forms a line contact with the wedge-shaped slope, converting the axial force into a radial force. Under the same preload, the normal pressure of the wedge-shaped thread is greater than that of the ordinary thread, and the friction is also increased accordingly, which can greatly improve the anti-loosening effect. In addition, the radial force of the wedge-shaped thread is evenly distributed, avoiding stress concentration and reducing the risk of crack initiation in the locking nut 100, thereby improving the service life of the locking nut 100.

[0046] According to some embodiments of the present invention, such as Figure 3 As shown, the locking structure 30 is a nylon insert, which is embedded in the end of the nut body 10 away from the second flange 22.

[0047] Among them, such as Figure 3 As shown in the second embodiment of this utility model, the locking structure 30 can be a nylon insert, which is embedded in the end of the nut body 10 away from the second flange 22. The nylon insert has a high elastic modulus and good plastic deformation capacity. When the fastener is tightened, the nylon insert undergoes elastic deformation under pressure, forming a continuous preload between the threaded parts. Under vibration or impact conditions, the elasticity of nylon can absorb some vibration energy, reducing the relative fretting between the fastener and the locking nut 100, thereby reducing the risk of loosening. The contact surface between the nylon insert and the thread of the fastener has a micro-uneven structure. During tightening, the nylon material fills the thread gap and undergoes plastic flow, forming a "mechanical interlocking" effect. Simultaneously, the coefficient of friction of nylon changes little with temperature, ensuring reliable anti-loosening torque under different working conditions. The elastic deformation of the nylon insert can disperse impact loads, avoiding stress concentration at the thread root, significantly improving the anti-loosening performance, durability, and adaptability of the locking nut 100.

[0048] According to some embodiments of the present invention, the end face of the second flange 22 facing away from the nut body 10 and the end face of the first flange 21 facing away from the nut body 10 are coplanar.

[0049] In this design, the end face of the second flange 22 facing away from the nut body 10 and the end face of the first flange 21 facing away from the nut body 10 are coplanar. This allows both the end faces of the second flange 22 and the first flange 21 facing away from the nut body 10 to contact the connected parts. Compared to a locking nut 100 where only the first flange 21 contacts the connected parts or a locking nut 100 without a flange 20, this increases the contact area between the locking nut 100 and the connected parts. This ensures that the preload is evenly distributed across the entire contact surface, avoiding localized stress concentration. This further reduces deformation or damage to the connected parts caused by uneven stress, thereby further improving the stability and reliability of the connection.

[0050] According to some embodiments of the present invention, such as Figure 2 and Figure 4 As shown, the cross-sectional shape of the nut body 10 is polygonal.

[0051] The cross-sectional shape of the nut body 10 can be polygonal, such as quadrilateral, pentagon, hexagon, etc. However, this utility model is not limited to this. The cross-sectional shape of the nut body 10 can also be other polygonal shapes, as long as the cross-sectional shape of the nut body 10 is polygonal.

[0052] As a specific embodiment of this utility model, the cross-sectional shape of the nut body 10 can be a regular hexagon. The symmetrical structure of the regular hexagon allows the nut body 10 to evenly distribute the load when subjected to force. Furthermore, the six contact surfaces of the hexagonal nut body 10 form a larger contact area with the wrench socket, resulting in more balanced friction when transmitting torque. This allows it to withstand higher tightening forces without slipping or wear on the rounded corners. In addition, the hexagonal nut body 10 can provide six wrench application surfaces, supporting multi-directional gripping and good tool compatibility (such as open-end wrenches, sockets, etc.). Especially during equipment maintenance, it is convenient to approach the locking nut 100 from different angles, reducing the difficulty of installation and maintenance of the locking nut 100.

[0053] According to some embodiments of the present invention, such as Figure 2 and Figure 4 As shown, the cross-sectional shape of the first flange 21 and the cross-sectional shape of the second flange 22 are both circular.

[0054] Among them, the cross-sections of the circular first flange 21 and the second flange 22 have infinite symmetry axes. When subjected to internal pressure, external pressure or axial load, the stress is evenly distributed along the circumference, realizing omnidirectional uniform bearing, which is beneficial to improving the structural strength and stability of the locking nut 100. It can also avoid stress concentration between the first flange 21 and the connected parts, and reduce the deformation or damage of the connected parts caused by uneven force.

[0055] According to some embodiments of the present invention, the outer peripheral wall of the nut body 10 may be formed with an anti-slip structure.

[0056] Among them, the anti-slip structure can be constructed as an anti-slip pattern. The anti-slip pattern increases the friction coefficient of the outer peripheral wall of the nut body 10, making it easier to apply force when tightening the nut body 10 manually or with tools, reducing slippage, and further reducing the difficulty of installing and maintaining the locking nut 100.

[0057] The vehicle according to the present invention includes the locking nut 100 for mounting the shock absorber described in the above embodiment. By providing a locking structure 30 on the nut body 10 to restrict the loosening of the locking nut 100, the risk of torque attenuation between the locking nut 100 and the shock absorber can be effectively reduced. Along the axial direction of the threaded hole 11, the second flange 22 is located on one side of the nut body 10 and is fixedly connected to the nut body 10. The second flange 22 is arranged around the threaded hole 11 in the circumferential direction to increase the clamping length of the locking nut 100 on the shock absorber, thereby improving the connection performance of the locking nut 100. The first flange 21 is fixed to the outer peripheral wall of the second flange 22. The first flange 21 is arranged around the second flange 22 in the circumferential direction to increase the contact area between the locking nut 100 and the connected parts, thereby avoiding the risk of structural damage due to concentrated force on the connected parts.

[0058] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0059] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A locking nut for mounting a shock absorber, characterized in that, include: The nut body has a threaded hole and a locking structure to restrict the locking nut from loosening; The flange portion includes a first flange and a second flange. Along the axial direction of the threaded hole, the second flange is located on one side of the nut body and is fixedly connected to the nut body. The second flange is arranged around the threaded hole in the circumferential direction. The first flange is fixed to the outer peripheral wall of the second flange. The first flange is arranged around the second flange in the circumferential direction of the second flange, and the ends of the first flange and the second flange opposite to the nut body are adjacent.

2. The locking nut for installing a shock absorber according to claim 1, characterized in that, The second flange has a threadless mounting through hole, which is positioned opposite to the threaded hole, and the central axis of the mounting through hole coincides with the central axis of the threaded hole.

3. The locking nut for installing a shock absorber according to claim 2, characterized in that, The diameter of the threaded hole is smaller than the diameter of the mounting through hole.

4. The locking nut for installing a shock absorber according to claim 1, characterized in that, The locking structure is a nylon insert, which is embedded in the end of the nut body away from the second flange.

5. The locking nut for installing a shock absorber according to claim 1, characterized in that, The internal thread of the threaded hole is a wedge-shaped thread, and the wedge-shaped thread is the locking structure.

6. The locking nut for installing a shock absorber according to claim 1, characterized in that, The end face of the second flange facing away from the nut body is coplanar with the end face of the first flange facing away from the nut body.

7. The locking nut for installing a shock absorber according to claim 1, characterized in that, The cross-sectional shape of the nut body is polygonal.

8. The locking nut for installing a shock absorber according to claim 1, characterized in that, Both the first flange and the second flange have circular cross-sectional shapes.

9. The locking nut for mounting a shock absorber according to any one of claims 1-8, characterized in that, The outer peripheral wall of the nut body has an anti-slip structure.

10. A vehicle, characterized in that, Includes a lock nut for mounting a shock absorber according to any one of claims 1-9.

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