Ball head structure and vehicle

Abstract

The embodiment of the utility model provides a ball head structure and a vehicle, and belongs to the technical field of automobile accessories. The ball head structure comprises a ball head pin and a ball head seat, the ball head pin comprises a ball head pin body and a limiting flange arranged on the ball head pin body, the ball head pin body is rotationally connected with the ball head seat, and a rotation stopping part is arranged on the side, away from the ball head seat, of the limiting flange and used for being connected with a connecting part. And when the nut is screwed on the ball pin main body, the ball pin main body and the nut are prevented from rotating along with each other. By arranging the rotation stopping part, when the ball pin is connected with the connecting component, the limiting flange can abut against the assembling end face of the connecting component, so that at least part of the rotation stopping part on the limiting flange is inserted into the assembling end face of the connecting component, the rotation stopping part and the connecting component stop rotating mutually, and the ball pin is prevented from rotating along with the nut; no additional rotation stopping structural part is added, and other special wrenches are not needed to prevent the ball pin from following rotation, so that the assembly operation of the ball head type structure is convenient and fast.

Description

Technical Field

[0001] The present application relates to the technical field of automobile parts, and in particular to a ball head structure and a vehicle. Background Art

[0002] Ball head structures are often used in vehicle suspension systems or steering systems. When the vehicle is on bumpy roads or turning, the ball head structure can rotate or swing freely within a certain range and ensure the stability of the connection between itself and the corresponding components.

[0003] A ball stud structure consists of a ball pin and a ball seat that is rotatably connected to the pin. The ball pin passes through the side of the component to be connected and is screwed onto a nut to achieve the connection. However, due to the rotatable connection between the ball pin and the ball seat, tightening the nut causes the ball pin to rotate relative to the nut, preventing the nut from being tightened to the specified torque. Currently, a rotation stop is provided on the ball pin and clamped with a dedicated wrench to prevent the ball pin from rotating.

[0004] However, the anti-rotation structure of the ball stud is clamped with a special wrench to prevent the ball stud from rotating, making the assembly operation of the ball stud structure inconvenient. Utility Model Content

[0005] The embodiments of the present application provide a ball head structure and a vehicle to solve the problem of inconvenient assembly operation of existing ball head structures.

[0006] In the first aspect, an embodiment of the present application provides a ball head structure, including a ball stud and a ball stud seat, the ball stud including a ball stud body and a limiting flange arranged on the ball stud body, the ball stud body being rotatably connected to the ball stud seat, the ball stud body being used to be passed through a connecting component, the limiting flange having a stop portion on the side facing away from the ball stud seat, the stop portion being used to be connected to the connecting component to limit the rotation of the ball stud body and the nut when a nut is screwed on the ball stud body.

[0007] In a possible implementation manner, in the ball head structure provided in an embodiment of the present application, the anti-rotation portion is located on the end surface of the limiting flange facing away from the ball head seat.

[0008] In a possible implementation manner, in the ball stud structure provided in the embodiment of the present application, there are multiple anti-rotation parts, and each of the anti-rotation parts is arranged around the circumference of the ball stud body at intervals.

[0009] In a possible embodiment, in the ball head structure provided in an embodiment of the present application, the extension direction of the anti-rotation portion is consistent with the radial direction of the limiting flange, and the end of the anti-rotation portion facing away from the ball head pin body is flush with the outer peripheral surface of the limiting flange.

[0010] In a possible implementation, the ball head structure provided by the embodiment of the application has the stop rotation part in the form of a convex part arranged on the end face of the limiting flange.

[0011] In a possible implementation, the ball head structure provided by the embodiment of the application has a height difference of 0.4 mm-0.6 mm between the stop rotation part and the end face of the limiting flange.

[0012] In a possible implementation, the ball head structure provided by the embodiment of the application has the stop rotation part in the form of a knurled part or a toothed part.

[0013] In a possible implementation, the ball head structure provided by the embodiment of the application has the ball head pin body including a rod body and a ball arranged at one end of the rod body, the ball is arranged in the ball head seat and rotationally connected with the ball head seat, the rod body is used for screwing the nut, and the limiting flange is integrally formed on the rod body.

[0014] In a possible implementation, the ball head structure provided by the embodiment of the application has an outer diameter size of the limiting flange being 1.5 times-2.0 times of an outer diameter size of the rod body.

[0015] In a possible implementation, the ball head structure provided by the embodiment of the application has an outer diameter size of the limiting flange being 1.5 times-2.0 times of an outer diameter size of the rod body.

[0016] The ball head structure and the vehicle provided by the embodiment of the application have the ball head seat and the ball head pin rotationally arranged in the ball head seat, the limiting flange is arranged on the ball head pin body, and the stop rotation part is arranged on the side of the limiting flange away from the ball head seat. By arranging the stop rotation part, when the ball head pin body is connected with the connecting component, the limiting flange can be connected with and abut against the assembly end face of the connecting component, so that the stop rotation part on the limiting flange is at least partially inserted into the assembly end face of the connecting component, and then the stop rotation part and the connecting component are mutually stopped from rotating. Subsequently, when the nut is screwed on the ball head pin body, the stop rotation of the stop rotation part and the connecting component can ensure that the ball head pin and the connecting component are relatively static, and prevent the ball head pin from rotating with the nut. In this way, the ball head structure and the vehicle provided by the application do not increase additional stop rotation structural parts, and do not need to use other special wrenches to prevent the ball head pin from rotating, so that the assembly operation of the ball head structure is convenient and fast. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments consistent with the application and, together with the description, further serve to explain the principles of the application.

[0018] Figure 1 FIG. 1 is a structural schematic diagram of a ball head structure provided by the embodiment of the application;

[0019] Figure 2for Figure 1 A structural diagram of the middle ball head structure from another perspective;

[0020] Figure 3 for Figure 1 A structural diagram of the middle ball head structure from another perspective.

[0021] Description of reference numerals:

[0022] 100-ball pin;

[0023] 110- ball stud body; 111- rod body;

[0024] 120-limiting flange; 121-stop part;

[0025] 200-ball head seat.

[0026] The above drawings illustrate specific embodiments of the present application, which will be described in more detail below. These drawings and the textual description are not intended to limit the scope of the present application in any way, but rather to illustrate the concepts of the present application to those skilled in the art by reference to specific embodiments. DETAILED DESCRIPTION

[0027] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. The following embodiments and features in the embodiments can be combined with each other unless there is a conflict.

[0028] As described in the background, a ball stud structure consists of a ball pin and a ball seat rotatably connected to the pin. The ball pin passes through the side of the component to be connected and is screwed onto a nut to achieve the connection. However, because the ball pin and ball seat are rotatably connected, tightening the nut causes the ball pin to rotate relative to the nut, preventing the nut from being tightened to the specified torque.

[0029] Currently, a rotation-stopping structure is provided on the ball stud. Specifically, the rotation-stopping structure can be provided on the outer peripheral surface of the ball stud located on the side of the connecting component close to the ball stud seat, such as a clamping plane, or an outer square or hexagonal structure. For this, the operator needs to use a wrench with one hand to clamp the ball stud to prevent it from rotating, and use the other hand to tighten the nut on the ball stud. This is a two-handed operation, which is complicated and inconvenient.

[0030] The rotation-stopping structure can also be a rotation-stopping structure arranged at the end of the ball pin on the side of the connecting component away from the ball seat, such as an outer hexagonal or outer quadrangular structure arranged at the end of the ball pin, or an inner hexagonal or inner quadrangular structure, which requires an operator to use a special anti-rotation wrench to clamp the rotation-stopping structure of the end of the ball pin to prevent rotation and drive the nut sleeved on the ball pin to rotate, which is high in operation cost and difficult to operate.

[0031] Therefore, the prior art uses a special wrench to clamp the rotation-stopping structure of the ball pin to prevent the ball pin from rotating, but this way makes the assembly operation of the ball head structure inconvenient.

[0032] In order to overcome the defects in the prior art, the application provides a ball head structure and a vehicle,

[0033] The content of the application will be described in detail below with reference to the drawings, so that those skilled in the art can understand the content of the application more clearly and in detail.

[0034] Referring to Figures 1 to 3 The application provides a ball head structure, which comprises a ball pin 100 and a ball seat 200. The ball pin 100 comprises a ball pin body 110 and a limiting flange 120 arranged on the ball pin body 110. The ball pin body 110 is rotationally connected with the ball seat 200. The ball pin body 110 is arranged on a connecting component. The limiting flange 120 has a rotation-stopping portion 121 on the side away from the ball seat 200. The rotation-stopping portion 121 is used to connect with the connecting component to limit the rotation of the ball pin body 110 and the nut when the nut is screwed on the ball pin body 110.

[0035] The ball head structure provided by the application can be widely applied in various fields, such as in the field of automobiles, the ball head structure can be used in the suspension system of a vehicle to connect the suspension swing arm and the vehicle body or frame, or be used in the steering system of a vehicle to connect the steering pull rod and the steering knuckle; and in the field of mechanical equipment, the ball head structure can also be arranged on a connecting rod component to realize flexible swinging of the connecting rod component.

[0036] It can be understood that the ball head structure ensures that the ball pin 100 and the ball seat 200 are rotationally connected. The ball seat 200 is arranged on a corresponding mounting component. The ball pin 100 is connected and fastened with a corresponding connecting component. In this way, the corresponding mounting component and the corresponding connecting component can be flexibly rotated and stably connected through the rotational cooperation between the ball pin 100 and the ball seat 200, so that the mounting component and the connecting component can adapt to the movement and connection requirements under various complex working conditions.

[0037] The ball pin 100 includes a ball pin body 110 and a limiting flange 120, wherein the ball pin body 110 is rotatably connected to the ball seat 200, and the portion of the ball pin body 110 located outside the ball seat 200 can be adapted to be plugged into the connecting hole on the connecting component. The limiting flange 120 is provided on the ball pin body 110, and when the ball pin body 110 is plugged into the connecting hole, the limiting flange 120 can be located between the ball seat 200 and the connecting component and abut against the assembly end face of the connecting hole of the connecting component to limit further movement of the connecting component toward the ball seat 200. The portion of the ball pin body 110 extending out of the connecting hole is used to screw a nut, so that the connecting component can be stably fastened to the ball pin body 110 through the nut and the limiting flange 120, thereby achieving a stable connection between the ball head structure and the connecting component.

[0038] A rotation-stopping portion 121 is provided on the side of the limiting flange 120 facing away from the ball seat 200, that is, the side of the limiting flange 120 facing the connecting component and abutting against the connecting component. When the connecting component abuts and is pressed against the limiting flange 120, the rotation-stopping portion 121 can at least partially penetrate the assembly end surface of the connecting component's connecting hole, thereby preventing the rotation of the rotation-stopping portion 121 and the connecting component. Furthermore, when the nut is screwed onto the ball pin body 110, the ball pin body 110 will not rotate with the nut due to the position restriction of the connecting component, ensuring that the nut can be tightened to the specified torque on the ball pin body 110.

[0039] In other embodiments, when the connecting component abuts and presses against the limiting flange 120, the anti-rotation portion 121 may also be clamped with the assembly end face at the connecting hole of the connecting component, or embedded in the assembly end face, or frictionally pressed against the assembly end face, so that the anti-rotation portion 121 cooperates with the connecting component to prevent rotation.

[0040] Therefore, the ball stud structure provided in the embodiment of the present application includes a ball stud seat 200 and a ball stud 100 rotatably disposed within the ball stud seat 200. A limiting flange 120 is provided on the ball stud body 110, and a rotation-stopping portion 121 is provided on the side of the limiting flange 120 facing away from the ball stud seat 200. By providing the rotation-stopping portion 121, when the ball stud 100 is connected to a connecting component, the limiting flange 120 can be tightly abutted against the assembly end face of the connecting component, so that the rotation-stopping portion 121 on the limiting flange 120 is at least partially connected to the assembly end face of the connecting component, thereby preventing the rotation-stopping portion 121 and the connecting component from rotating relative to each other. Subsequently, when a nut is screwed onto the ball stud body 110, the rotation-stopping portion 121 and the connecting component can ensure that the ball stud 100 and the connecting component are relatively stationary, preventing the ball stud 100 from rotating with the nut. No additional rotation-stopping structural parts are added, and no special wrench is required to prevent the ball stud 100 from rotating, making the assembly operation of the ball stud structure convenient and quick.

[0041] In some embodiments, reference Figure 1 and Figure 3 As shown, the anti-rotation portion 121 is located on the end surface of the limiting flange 120 facing away from the ball head seat 200 .

[0042] It can be understood that in this embodiment, the stop portion 121 is arranged on the end face of the limiting flange 120, so that the stop portion 121 can be relatively distributed on one side of the axial direction of the limiting flange 120 to reduce the radial dimension of the limiting flange 120, thereby making the radial structure of the ball stud 100 more compact.

[0043] In addition, the stop part 121 is set on the end face of the limiting flange 120, and the stop part 121 can be directly processed on the limiting flange 120 without the need to additionally set up a component corresponding to the stop part 121 to connect with the limiting flange 120, making the ball stud 100 more compact and less expensive.

[0044] In other embodiments, the stop portion 121 is sleeved on the limiting flange 120 and is located on the side facing away from the ball head seat 200, so that the end face of the stop portion 121 is flush with the end face of the limiting flange 120 facing away from the ball head seat 200, so that the stop portion 121 forms a step surface relative to the limiting flange 120. This application does not impose any restrictions on this.

[0045] In some embodiments, reference Figure 1 and Figure 2 As shown, there are a plurality of anti-rotation parts 121 , and each anti-rotation part 121 is disposed around the circumference of the ball stud body 110 at intervals.

[0046] In this way, multiple anti-rotation parts 121 are arranged at intervals around the circumference of the ball stud body 110, which can increase the setting area of ​​the anti-rotation part 121 so that the anti-rotation part 121 can fully contact the assembly end face of the connecting component. In addition, the anti-rotation part 121 can also be abutted against the assembly end face from the circumference of the ball stud body 110, so that the abutment force between the anti-rotation part 121 and the assembly end face of the connecting component is more balanced, thereby ensuring the anti-rotation effect of the anti-rotation part 121.

[0047] In some embodiments, reference Figure 2 and Figure 3 As shown, the extension direction of the anti-rotation portion 121 is consistent with the radial direction of the limiting flange 120 , and the end of the anti-rotation portion 121 facing away from the ball stud body 110 is flush with the outer circumferential surface of the limiting flange 120 .

[0048] With such an arrangement, the extension direction of the stop part 121 can be kept consistent with the radial direction of the limiting flange 120, which facilitates the uniform distribution of the stop part 121 in the circumference of the limiting flange 120, and the side with a larger surface area of ​​the stop part 121 can be located in the rotation trend direction of the ball stud body 110, thereby improving the anti-rotation effect of the stop part 121 on the ball stud body 110, making the structural dimensions of the limiting flange 120 and the stop part 121 more consistent, and facilitating design and processing.

[0049] Moreover, the radial dimension of the stop portion 121 along the limiting flange can be made as large as possible without increasing the radial dimension of the limiting flange 120, so that the stop portion 121 can more fully abut against the assembly end face of the connecting hole on the corresponding connecting component, and at least partially insert into the assembly end face, thereby improving the anti-rotation effect of the stop portion 121 on the connecting component.

[0050] The end of the stop part 121 facing away from the ball pin body 110 is set on the outer peripheral side of the end face of the limiting flange 120, flush with the outer peripheral surface of the limiting flange 120, and a radial gap is formed between the stop part 121 and the ball pin body 110. While ensuring stable rotation between the stop part 121 and the assembly end face, the area of ​​the limiting flange 120 occupied by the stop part 121 can be reduced, so that the structure of the ball head structure is more compact.

[0051] In addition, the radial spacing can be used as a processing allowance for processing the stop portion 121 on the end face of the limiting flange 120 to prevent the ball stud body 110 from interfering with the processing of the stop portion 121 on the end face of the limiting flange 120, and to avoid damage to the ball stud body 110 when processing the stop portion 121, so that the structure of the ball head structure is more stable and reliable, and is easy to process.

[0052] In specific implementation, refer to Figure 2 As shown, the width D of the stop portion 121 along the radial direction of the limiting flange 120 can be set to be greater than or equal to half of the radial dimension of the limiting flange 120. While ensuring that the processing of the stop portion 121 does not interfere with the ball stud body 110, the area of ​​the stop portion 121 relative to the end face of the limiting flange 120 can be expanded as much as possible.

[0053] It can be understood that the larger the area of ​​the end face of the limiting flange 120 occupied by the stop part 121, the larger the contact area between the stop part 121 and the assembly end face of the connecting component, and the greater the friction between the stop part 121 and the assembly end face of the connecting component, which is more conducive to preventing the ball stud 100 from rotating with the nut, so that the assembly operation of the ball head structure is more convenient and efficient.

[0054] In some embodiments, reference Figures 1 to 3 As shown, the anti-rotation portion 121 is a protrusion provided on the end surface of the limiting flange 120.

[0055] It can be understood that a protrusion is provided on the end face of the side of the limiting flange 120 facing the connecting component to form an uneven structure, so that the friction coefficient of the end face of the side of the limiting flange 120 facing the connecting component is greater than the friction coefficient of other surfaces of the limiting flange 120. When the anti-rotation part 121 of the limiting flange 120 is pressed against the assembly end face of the connecting component, the protrusion can easily make the anti-rotation part 121 at least partially inserted into the assembly end face of the connecting component, so that the friction force between the anti-rotation part 121 and the assembly end face of the connecting component is larger, thereby ensuring the anti-rotation fit between the limiting flange 120 and the connecting component, and thus preventing the ball stud 100 from rotating.

[0056] In specific implementation, refer to Figure 3 As shown, the height difference H between the end surface of the anti-rotation portion 121 and the limiting flange 120 is 0.4 mm-0.6 mm.

[0057] It is understandable that the height difference H between the anti-rotation part and the end face of the limiting flange 120 is set to 0.4mm-0.6mm, so as to take into account both the convenient processing of the anti-rotation part and the anti-rotation effect between the anti-rotation part and the connecting component.

[0058] If the end face height difference H between the stop part and the limiting flange 120 is large, the processing difficulty of the stop part may increase, resulting in poor structural stability of the stop part after processing and affecting the structural strength of the limiting flange 120. If the end face height difference H between the stop part and the limiting flange 120 is small, the stop part may not be effectively inserted into the assembly end face of the connecting component, resulting in small friction between the stop part and the assembly end face of the connecting component and poor stopping effect.

[0059] For example, the height difference H between the anti-rotation portion and the end surface of the limiting flange 120 can be set to 0.40 mm, 0.45 mm, 0.50 mm, 0.55 mm or 0.60 mm. In this embodiment, the middle value of 0.50 mm is selected.

[0060] In a specific implementation, the anti-rotation portion 121 is a knurled portion or a hobbing portion.

[0061] It can be understood that the anti-rotation portion 121 is set as a knurling portion or a tooth hobbing portion. Knurling refers to a mechanical process of rolling straight lines or mesh patterns on the surface of a workpiece by a knurling cutter, and tooth hobbing refers to a mechanical process of cutting out tooth shapes on a workpiece by a gear hob. Knurling and tooth hobbing are both mature processing technologies. They are used to process a protrusion on the end face of the limit flange 120 to form the anti-rotation portion 121, which can make the processing of the anti-rotation portion 121 convenient and quick, and the operating cost is lower.

[0062] In other embodiments, the anti-rotation portion 121 can also be set as a conical protrusion or a pyramidal protrusion on the end face of the limiting flange 120 that is away from the ball head seat 200, which makes it easier for the anti-rotation portion 121 to be inserted into the assembly end face of the connecting component and provides a stronger anti-rotation effect.

[0063] In one possible implementation, refer to Figure 1 and Figure 3 As shown, the ball pin body 110 includes a rod body 111 and a sphere arranged at one end of the rod body 111. The sphere is located in the ball head seat 200 and is rotatably connected to the ball head seat 200. The rod body 111 is used to screw the nut, and the limiting flange 120 is integrally formed on the rod body 111.

[0064] It can be understood that the rod body 111 and the sphere located at one end of the rod body 111 are provided to form the ball pin body 110, so that the structure of the ball pin body 110 can be simple and compact, and the limiting flange 120 is integrally formed on the rod body 111, so that the processing of the limiting flange 120 can be completed at the same time as the processing of the ball pin body 110, making the processing of the ball pin 100 more convenient.

[0065] In addition, integrally forming the limiting flange 120 and the rod body 111 can also ensure the stability of the connection between the limiting flange 120 and the rod body 111. There is no need to worry about relative rotation between the limiting flange 120 and the rod body 111. When the limiting flange 120 abuts against the assembly end face of the connecting component through the stop portion 121, it can effectively ensure that the ball pin body 110 will not rotate relative to the limiting flange 120.

[0066] In some embodiments, the outer diameter of the limiting flange 120 is 1.5 to 2.0 times the outer diameter of the rod body 111 .

[0067] This arrangement allows the size of the limiting flange 120 to be relatively matched to the rod body 111 of the ball stud body 110, ensuring a compact ball stud structure and facilitating control of the end surface area of ​​the limiting flange 120 occupied by the anti-rotation portion 121 on the limiting flange 120. The ratio of the outer diameter of the limiting flange 120 to the rod body 111 can be set to any value between 1.5 and 2.0 times, depending on the working conditions, and this application does not impose any restrictions on this.

[0068] Further, refer to Figure 1 and Figure 3 As shown, the rod body 111 is provided with a threaded portion for screwing a nut. The threaded portion is located on the side of the limiting flange 120 facing away from the sphere, and the threaded portion and the limiting flange 120 are spaced apart along the extension direction of the rod body 111. In a specific configuration, the threaded portion can be a full thread provided on the rod body 111, and a machining gap can be left between the full thread and the limiting flange 120.

[0069] With such an arrangement, the nut can be stably screwed onto the rod body 111 , so that the nut and the limiting flange 120 can clamp the connecting component together, thereby ensuring the stability of the connection between the ball head structure and the connecting component.

[0070] In a second aspect, an embodiment of the present application provides a vehicle, comprising a vehicle body and any one of the above-mentioned ball head structures, wherein the ball head structure is connected to a connecting component on the vehicle body.

[0071] The ball head structure has been described in detail in the above embodiments and will not be repeated here.

[0072] The vehicle provided in the embodiment of the present application is provided with a ball head structure, which includes a ball head seat 200 and a ball head pin 100 rotatably arranged in the ball head seat 200. A limiting flange 120 is provided on the ball head pin body 110, and the limiting flange 120 has a stop portion 121 on the side facing away from the ball head seat 200. By setting the anti-rotation part 121, when the ball pin 100 is connected to the connecting component, the limiting flange 120 can be pressed against the assembly end face of the connecting component, so that the anti-rotation part 121 on the limiting flange 120 is at least partially connected to the assembly end face of the connecting component, thereby preventing the anti-rotation part 121 and the connecting component from rotating relative to each other. When the nut is subsequently screwed on the ball pin body 110, the anti-rotation part 121 and the connecting component can be used to prevent the ball pin 100 from rotating with the nut. No additional anti-rotation structural parts are added, and there is no need to use other special wrenches to prevent the ball pin 100 from rotating, making the assembly operation of the ball head structure convenient and quick.

[0073] It should be noted that references in this specification to "one embodiment," "an embodiment," "an exemplary embodiment," "some embodiments," and the like indicate that the described embodiment may include a particular feature, structure, or characteristic, but not necessarily every embodiment includes that particular feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Furthermore, when a particular feature, structure, or characteristic is described in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not.

[0074] Generally speaking, terms should be understood, at least in part, based on the context in which they are used. For example, as used herein, the term "one or more" can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense, depending at least in part on the context. Similarly, terms such as "a," "an," or "the" can also be understood to convey either singular or plural usage, depending at least in part on the context.

[0075] It should be readily understood that “on,” “above,” and “over” in this application should be interpreted in the broadest manner, such that “on” means not only “directly on something,” but also includes “on something” with intervening features or layers therebetween, and “above” or “over” includes not only the meaning of “above” or “over,” but also includes “above” or “over” with no intervening features or layers therebetween (i.e., directly on something).

[0076] Additionally, spatially relative terms, such as "below," "beneath," "beneath," "above," and the like, may be used herein for ease of description to describe the relationship of one element or feature to other elements or features as depicted in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. The device may be otherwise oriented (rotated 90° or at other orientations), and the spatially relative descriptors used herein should be interpreted accordingly.

[0077] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A ball head structure, characterized in that: The invention comprises a ball pin (100) and a ball seat (200), wherein the ball pin (100) comprises a ball pin body (110) and a limiting flange (120) arranged on the ball pin body (110), wherein the ball pin body (110) is rotatably connected to the ball seat (200), and the ball pin body (110) is used to be inserted into a connecting component, and the limiting flange (120) has a rotation-stopping portion (121) on a side facing away from the ball seat (200), and the rotation-stopping portion (121) is used to be connected to the connecting component to limit the rotation of the ball pin body (110) and the nut when a nut is screwed on the ball pin body (110).

2. The ball head structure according to claim 1, characterized in that: The anti-rotation portion (121) is located on the end surface of the limiting flange (120) facing away from the ball head seat (200).

3. The ball head structure according to claim 2, characterized in that: There are a plurality of the anti-rotation parts (121), and each of the anti-rotation parts (121) is arranged at intervals around the circumference of the ball stud body (110).

4. The ball head structure according to claim 3, characterized in that: The extension direction of the anti-rotation portion (121) is consistent with the radial direction of the limiting flange (120), and the end of the anti-rotation portion (121) facing away from the ball stud body (110) is flush with the outer peripheral surface of the limiting flange (120).

5. The ball head structure according to claim 1, characterized in that: The anti-rotation portion (121) is a protrusion provided on the end surface of the limiting flange (120).

6. The ball head structure according to claim 5, characterized in that: The height difference between the anti-rotation portion (121) and the end surface of the limiting flange (120) is 0.4 mm to 0.6 mm.

7. The ball head structure according to claim 5, characterized in that: The anti-rotation portion (121) is a knurled portion or a toothed portion.

8. The ball head structure according to any one of claims 1 to 7, characterized in that: The ball pin body (110) comprises a rod body (111) and a sphere arranged at one end of the rod body (111); the sphere is located in the ball head seat (200) and is rotatably connected to the ball head seat (200); the rod body (111) is used to screw the nut; and the limiting flange (120) is integrally formed on the rod body (111).

9. The ball head structure according to claim 8, characterized in that: The outer diameter of the limiting flange (120) is 1.5 to 2.0 times the outer diameter of the rod body (111).

10. A vehicle, characterized in that: It comprises a vehicle body and the ball head structure according to any one of claims 1 to 9, wherein the ball head structure is connected to a connecting component on the vehicle body.

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