Front fork assembly and scooter

Abstract

The utility model provides a kind of front fork assembly and scooter, front fork assembly includes front fork body, rocker, pivot and limit piece, rocker is set in the two sides of front fork body, pivot is rotatably set in front fork body, rocker is set in the two ends of pivot, limit piece is set in front fork body, rocker has the first position and the second position of rotation switching, rocker is spaced apart when being in the first position with limit piece, rocker is abutted on limit piece when being in the second position, limit piece is used for the rotation angle of limit rocker. The present application is by being set on front fork body limit piece, the rotation angle of limit rocker is realized by the cooperation of limit piece and rocker, it is favorable to realize the structure protection of front fork assembly while realizing accurate control rocker rotation angle, avoid the structural damage caused by excessive rotation. The utility model provides front fork assembly and scooter solve the problem that the reliability and stability of limit structure in prior art in front fork assembly are poor.

Description

Technical Field

[0001] This utility model relates to the field of vehicle-related technology, specifically to a front fork assembly and a scooter. Background Technology

[0002] In the limiting design of traditional vehicle front fork structures, the contact between the swing arm and the limiting structure typically uses a metal block line contact. This design has revealed a series of problems in practical applications. First, line contact leads to stress concentration, easily causing fatigue cracks at the contact point, affecting the overall performance and safety of the suspension system. Second, the control of the swing angle is significantly affected by assembly errors, resulting in abnormal noise upon bottoming out and reducing rider comfort. Finally, during long-term use, fretting wear at the line contact area becomes severe. After prolonged driving, the clearance increases significantly, which not only accelerates structural wear but may also lead to more serious mechanical failures.

[0003] In existing technologies, the line contact design of metal limiting structures cannot effectively avoid stress concentration and wear problems, which leads to a significant reduction in the reliability and stability of the limiting structure during vehicle operation, especially under harsh conditions, thus affecting the overall performance of the vehicle.

[0004] Therefore, existing front fork components suffer from poor reliability and stability of the limiting structure. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a front fork assembly and a scooter.

[0006] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0007] One aspect of this application provides a front fork assembly, which includes a front fork body, rocker arms, a pivot, and a limiting member. The rocker arms are arranged in pairs on both sides of the front fork body. The pivot is rotatably mounted on the front fork body, and the rocker arms are located at both ends of the pivot. The limiting member is located on the front fork body. The rocker arms have a first position and a second position that can be switched during rotation. When the rocker arm is in the first position, it is spaced apart from the limiting member; when the rocker arm is in the second position, it abuts against the limiting member. The limiting member limits the rotation angle of the rocker arms. This application, by providing a limiting member on the front fork body and using the cooperation between the limiting member and the rocker arms to limit the rotation angle of the rocker arms, facilitates precise control of the rocker arm rotation angle while simultaneously protecting the structure of the front fork assembly and preventing structural damage caused by excessive rotation.

[0008] In some embodiments, the fork body has a first channel, the pivot is mounted in the first channel, and a limiting member is disposed on the bottom side of at least one of the two end openings of the first channel. This application utilizes the first channel as a guide and support for the pivot, ensuring its free rotation. Simultaneously, by positioning the limiting member, the rotation angle of the rocker arm mounted on the pivot is effectively controlled without affecting the pivot's installation. This not only improves the rotational accuracy and stability of the pivot, making the rocker arm's movement smoother during swing, but also reduces friction and noise.

[0009] In some embodiments, the axis of the pivot is parallel or collinear with the axis of the first channel; and / or the limiting member is a block structure, the surface of the limiting member facing the axis of the first channel has a clearance groove, the clearance groove communicates with the first channel, the two ends of the pivot are disposed outside the first channel, and at least a portion of the ends of the pivot is located inside the clearance groove. The relative positional relationship between the pivot and the first channel in this application ensures smooth rotation of the pivot; at the same time, the provision of the clearance groove allows the ends of the pivot to move freely within a certain range, avoiding damage that may be caused by hard contact and improving the overall durability of the fork assembly.

[0010] In some embodiments, the rocker arm includes a connecting structure and a bracket. The connecting structure is disposed on the bracket, and the bracket is connected to the pivot shaft via the connecting structure. The end of the bracket has a first abutment portion facing the fork body. When the rocker arm is in a first position, the first abutment portion is spaced apart from the limiting member; when the rocker arm is in a second position, the first abutment portion abuts against the limiting member. This application ensures a secure connection between the rocker arm and the pivot shaft through the connecting structure, and simultaneously utilizes the cooperation between the first abutment portion and the limiting member to precisely control the rotation range of the rocker arm, thereby improving the response speed and structural stability of the fork assembly during use.

[0011] In some embodiments, the first abutting portion has a notch on the side facing the limiting member. When the rocker arm is in the first position, the end face of the notch portion is spaced apart from the top face of the limiting member, and an inclination angle A is formed between the end face of the notch portion and the top face of the limiting member, where A satisfies 17.5°≤A≤18.5°. When the rocker arm is in the second position, the end face of the notch portion abuts against the top face of the limiting member, and the contact area between the end face of the notch portion and the top face of the limiting member is ≥60mm². 2 This application utilizes a structural design that forms a surface-to-surface contact between the notch portion on the first abutment and the limiting member, thereby dispersing stress, reducing the generation of fatigue cracks, and improving the durability of the structure; at the same time, the end face of the notch portion and the top face of the limiting member form an inclined angle A, which limits the rotation range of the rocker arm and further avoids the phenomenon of the rocker arm rotating too much.

[0012] In some embodiments, the fork assembly further includes a buffer structure disposed on the first abutment portion and / or the limiting member. When the rocker arm is in the second position, the first abutment portion abuts against the limiting member through the buffer structure. This application absorbs the impact force when the rocker arm bottoms out through the buffer structure, reducing noise and vibration, and improving the riding comfort of the scooter.

[0013] In some embodiments, the cushioning structure is a pad or a coating. The pads or coatings used in this application can provide additional shock absorption and abrasion resistance without affecting the overall compactness and lightweight design of the structure.

[0014] In some embodiments, along the axial direction of the shaft, the distance between the surface of the bracket facing the shaft end face and the shaft end face is less than or equal to 0.1 mm. The clearance between the shaft and the bracket in this application is set to less than or equal to 0.1 mm, ensuring the accuracy and stability of torque transmission and improving the response speed and handling precision of the front fork assembly during steering of the scooter.

[0015] In some embodiments, the end face of the rotating shaft has a mating structure, and the connecting structure and the mating structure are mated in a shape-fitting manner to enable the rotating shaft and the rocker arm to rotate synchronously. The mating structure of the connecting structure and the mating structure of this application, which is shape-fitting, ensures synchronous movement between the rotating shaft and the rocker arm and avoids slippage and loosening during torque transmission.

[0016] In some embodiments, one of the connecting structure and the mating structure is a protrusion, and the other is a groove. At least a portion of the protrusion extends into the interior of the groove, and the outer surface of the protrusion abuts against the inner surface of the groove. This application utilizes the interlocking of the protrusion and the groove to enhance the connection strength between the pivot and the rocker arm, while ensuring their synchronous movement. This improves the reliability and durability of the scooter under high torque input and reduces the risk of connection failure.

[0017] In some embodiments, the groove opening is polygonal or elliptical. The groove formation of this application can be adaptively configured according to actual needs, which helps to increase the flexibility of the structural design.

[0018] In some embodiments, an annular mounting space is formed between the inner circumferential surface of the first channel on the fork body and the outer circumferential surface of the pivot. The fork assembly also includes a shock-absorbing structure disposed inside the mounting space, with an interference fit between the shock-absorbing structure and the inner circumferential surface of the first channel and the outer circumferential surface of the pivot. The shock-absorbing structure of this application adopts an interference fit mounting method, which can effectively absorb and disperse impact force. The shock-absorbing structure, together with the setting structure of the limiting member, not only achieves a sufficient buffering effect, but also significantly reduces the amount of structural deformation of the scooter under extreme operation, extending the service life of the shock-absorbing structure.

[0019] In some embodiments, the damping structure is formed in a sleeve shape, and at least one of the two end faces of the damping structure in the axial direction has an annular groove. The distance between the two opposite annular groove walls gradually increases in the direction towards the groove opening. This application achieves the nonlinear deformation characteristics of the damping structure through the gradual depth of the annular groove, enabling the damping structure to provide differentiated damping effects under different levels of impact, and increasing the shear resistance.

[0020] Another aspect of this application provides a scooter that includes the aforementioned front fork assembly. The scooter of this application, employing the aforementioned front fork assembly, ensures the range of motion of the rocker arm, improves structural stability, and also enhances the scooter's handling performance and durability.

[0021] This utility model has the following beneficial effects:

[0022] This application sets a limiting component on the front fork body, and the rotation angle of the rocker arm is limited by the cooperation of the limiting component and the rocker arm. This helps to achieve precise control of the rocker arm rotation angle while protecting the structure of the front fork assembly and avoiding structural damage caused by excessive rotation. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 Exploded view of the front fork assembly provided by this utility model;

[0025] Figure 2 A three-dimensional structural diagram of the front fork assembly provided by this utility model;

[0026] Figure 3 A side view of the front fork assembly provided by this utility model;

[0027] Figure 4 A three-dimensional structural diagram of the front fork body provided by this utility model;

[0028] Figure 5 A three-dimensional structural diagram of the front fork body and the pivot shaft provided by this utility model;

[0029] Figure 6 A schematic diagram of the rocker arm provided by this utility model.

[0030] The above figures include the following reference numerals:

[0031] 10. Front fork body; 110. First channel; 20. Rocker arm; 210. First abutment part; 211. Notch; 220. Connecting structure; 230. Bracket; 30. Rotary shaft; 310. Mating structure; 40. Limiting component; 410. Clearance groove; 420. Top surface; 50. Shock absorption structure; 60. Mounting hole; 70. Fastener; 80. Fastening nut. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0033] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0034] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0035] In the description of the embodiments of this utility model, it should be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0036] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] In the description of the embodiments of this utility model, it should also be noted that the terms "first" and "second" used herein do not specifically refer to any order or sequence, nor are they intended to limit this case; they are merely used to distinguish components or operations described using the same technical terms.

[0038] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0039] The technical solution of this utility model will now be described with reference to the accompanying drawings.

[0040] To address the issues of poor reliability and stability of the limiting structure in existing fork assemblies, this application provides a fork assembly.

[0041] like Figures 1 to 6 As shown, the fork assembly includes a fork body 10, a rocker arm 20, a pivot 30, and a limiting member 40. The rocker arms 20 are arranged in pairs on both sides of the fork body 10. The pivot 30 is rotatably arranged on the fork body 10. The rocker arms 20 are arranged at both ends of the pivot 30. The limiting member 40 is arranged on the fork body 10. The rocker arms 20 have a first position and a second position that can be rotated. When the rocker arms 20 are in the first position, they are spaced apart from the limiting member 40. When the rocker arms 20 are in the second position, they abut against the limiting member 40. The limiting member 40 is used to limit the rotation angle of the rocker arms 20.

[0042] The two ends of the pivot 30 are connected to two rocker arms 20 respectively. The rocker arms 20 are used to connect to the wheel. The rocker arms 20 are rotatably mounted on the front fork body 10 through the pivot 30 so that the pivot 30 can switch between the first position and the second position.

[0043] Two rocker arms 20 are arranged in pairs at both ends of the pivot 30 along the axial direction of the pivot 30, and the two rocker arms 20 are symmetrically arranged about the front fork body 10. The two rocker arms 20 and the pivot 30 cooperate to form a rotating whole.

[0044] This application sets a limiting member 40 on the front fork body 10. The limiting member 40 cooperates with the rocker arm 20 to limit the rotation angle of the rocker arm 20. This helps to achieve precise control of the rotation angle of the rocker arm 20 while protecting the structure of the front fork assembly and avoiding structural damage caused by excessive rotation.

[0045] Specifically, along the axial direction of the pivot 30, a limiting member 40 may be provided on one side of the fork body 10, or a limiting member 40 may be provided on both sides of the fork body 10. The limiting member 40 is provided on the same side of the fork body 10 as the rocker arm 20. When a limiting member 40 is provided on one side of the fork body 10, the limiting member 40 restricts the rocker arm 20 on the corresponding side, thereby restricting the rotation of the pivot 30 and the two rocker arms 20. When a limiting member 40 is provided on both sides of the fork body 10, the limiting members 40 on both sides respectively restrict the rocker arm 20 on the corresponding side, thereby limiting the position of the rocker arm 20.

[0046] In this application, a limiting member 40 is provided on one side of the front fork body 10 along the axial direction of the pivot 30 to ensure the compactness of the structure and the stability of the limiting rocker arm 20.

[0047] In this embodiment, the limiting member 40 is a block structure. When the rocker arm 20 rotates to the second position, the rocker arm 20 and the limiting member 40 form a surface-to-surface contact structure to limit the rocker arm 20, so as to ensure that the rocker arm 20 will not continue to rotate, thereby achieving the effect of limiting the rotation angle of the rocker arm 20.

[0048] like Figures 1 to 5 As shown, the fork body 10 has a first channel 110, the pivot 30 is mounted on the first channel 110, and the limiting member 40 is disposed on the bottom side of at least one of the two end openings of the first channel 110.

[0049] When one limiting member 40 is provided, the bottom side of one end opening of the first channel 110 has a limiting member 40; when two limiting members 40 are provided, the bottom side of the two end openings of the first channel 110 has a limiting member 40 respectively.

[0050] This application utilizes the first channel 110 as a guide and support for the rotating shaft 30, ensuring the free rotation of the rotating shaft 30. At the same time, through the position setting of the limiting member 40, the rotation angle of the rocker arm 20 installed on the rotating shaft 30 can be effectively controlled without affecting the installation of the rotating shaft 30. This not only improves the rotation accuracy and stability of the rotating shaft 30, making the rocker arm 20 move more smoothly during the swinging process, but also reduces friction and noise.

[0051] Specifically, the first channel 110 is located on the bottom side of the fork body 10, that is, the side of the fork body 10 facing the wheel. The first channel 110 provides installation space for the shaft 30. The middle part of the shaft 30 is located inside the first channel 110 so that the shaft 30 can be rotatably mounted on the fork body 10.

[0052] In this embodiment, the axis of the rotating shaft 30 and the axis of the first channel 110 can be parallel or collinear. The relative positional relationship between the rotating shaft 30 and the first channel 110 ensures smooth rotation of the rotating shaft 30. When the axis of the rotating shaft 30 is parallel to the axis of the first channel 110, the rotating shaft 30 can perform radial movement within the first channel 110 for buffering compensation, which further improves the buffering effect. When the axis of the rotating shaft 30 is collinear with the axis of the first channel 110, the rotating shaft 30 rotates within the first channel 110, and the relative position of the rotating shaft 30 and the first channel 110 remains unchanged along the radial direction of the first channel 110. This helps to improve the consistency of the structure, the stability of the structure installation, and the durability of the structure.

[0053] In this embodiment, the limiting member 40 is a block structure. The surface of the limiting member 40 facing the axis of the first channel 110 has a relief groove 410. The relief groove 410 is connected to the first channel 110. The two ends of the rotating shaft 30 are located outside the first channel 110, and at least a portion of the ends of the rotating shaft 30 are located inside the relief groove 410.

[0054] like Figure 1 and Figure 4 As shown, the clearance groove 410 is provided on the top surface 420 of the limiting member 40.

[0055] This application, through the setting of the clearance groove 410, allows the end of the pivot 30 to move freely within a certain range, avoiding damage that may be caused by hard contact and improving the overall durability of the fork assembly; at the same time, the structural setting of the clearance groove 410 enables the limiting member 40 to form a limiting whole, eliminating the need for separate settings, which helps to ensure the structural strength of the limiting member 40 and thus ensure the stability of the limiting. Of course, the structure of the clearance groove 410 is not limited to the above-mentioned setting; the limiting member 40 can also be set in blocks to form a split structure to abut the rocker arm 20.

[0056] The clearance groove 410 of this application can be an arc-shaped groove, a rectangular groove, or other structural configurations, designed to avoid the rotating shaft 30 while still achieving contact and limiting with the rocker arm 20. The arc-shaped groove is configured to be coaxial with the first channel 110 and the rotating shaft 30, and to ensure stable contact between the rocker arm 20 and the top surface of the limiting member 40.

[0057] like Figure 1 , Figure 2 and Figure 6As shown, the rocker arm 20 includes a connecting structure 220 and a bracket 230. The connecting structure 220 is disposed on the bracket 230. The bracket 230 is connected to the rotating shaft 30 through the connecting structure 220. The end of the bracket 230 has a first abutting part 210 disposed on the side facing the front fork body 10. When the rocker arm 20 is in the first position, the first abutting part 210 is spaced apart from the limiting member 40. When the rocker arm 20 is in the second position, the first abutting part 210 abuts against the limiting member 40.

[0058] One end of the bracket 230 is connected to the wheel, and the other end is connected to the shaft 30 through the connecting structure 220.

[0059] This application ensures a firm connection between the rocker arm 20 and the pivot 30 through the connecting structure 220, while using the cooperation between the first abutment part 210 and the limiting member 40 to precisely control the rotation range of the rocker arm 20, thereby improving the response speed and structural stability of the fork assembly during use.

[0060] In this embodiment, the first abutment portion 210 is formed at the end of the bracket 230 and is formed by bending the bracket 230. Specifically, the limiting member 40 is disposed on the fork body 10, and the bracket 230 is disposed on the side of the limiting member 40 away from the fork body 10 along the axial direction of the pivot 30. Therefore, the bracket 230 needs to form the first abutment portion 210 so that it can abut against the limiting member 40.

[0061] Specifically, the first abutment 210 is disposed at one end of the bracket 230, and the connecting structure 220 is disposed in the area between the two ends of the bracket 230 and close to the first abutment 210, thereby ensuring that a small lever arm is formed between the first abutment 210 and the connecting structure 220, which is conducive to achieving a rapid response and abutment with the limiting block, while also having better structural strength and improving the stability of the limiting.

[0062] like Figure 3 As shown, the first abutting part 210 has a notch 211 on the side facing the limiting member 40. The structure of the notch 211 helps to ensure that the first abutting part 210 is located on the upper side of the limiting member 40.

[0063] During the rotation of the rocker arm 20, the notch 211 on the first abutment part 210 forms a surface-to-surface contact structure with the limiting member 40, thereby dispersing stress, reducing the generation of fatigue cracks, and improving the durability of the structure.

[0064] Specifically, when the rocker arm 20 is in the first position, the end face of the notch 211 is spaced apart from the top face 420 of the limiting member 40, and an inclination angle A is formed between the end face of the notch 211 and the top face 420 of the limiting member 40. A satisfies 17.5°≤A≤18.5°, and A can be 17.5°, 18°, 18.5°, etc.

[0065] The end face of the notch 211 portion used in this application forms an inclination angle A with the top surface 420 of the limiting member 40, which limits the rotation range of the rocker arm 20 and further avoids the phenomenon of the rocker arm 20 rotating too much.

[0066] In this embodiment, the rocker arm 20 can rotate within a range of 17.5° to 18.5°, thereby limiting the rotation range of the rocker arm 20 and ensuring that the rocker arm 20 does not rotate too much, which would cause damage to the structural components.

[0067] Specifically, when the rocker arm 20 is in the second position, the end face of the notch 211 abuts against the top surface 420 of the limiting member 40, and the contact area between the end face of the notch 211 and the top surface 420 of the limiting member 40 is ≥60mm². 2 .

[0068] In this embodiment, when the first abutting part 210 and the limiting member 40 are in face-to-face contact, the area of ​​the contact surface is greater than 60mm. 2 This ensures uniform force distribution, reduces stress, and improves the stability of the limit position.

[0069] In this embodiment, the fork assembly also includes a buffer structure. When the rocker arm 20 is in the second position, the first abutting part 210 abuts against the limiting member 40 through the buffer structure.

[0070] In one embodiment, a buffer structure is disposed on the first abutment portion 210 and rotates with the rocker arm 20. When the rocker arm 20 switches from the first position to the second position, the buffer structure contacts the limiting member 40 to avoid absorbing the impact force when the rocker arm 20 hits the bottom, reduce abnormal noise and vibration, and improve the riding comfort of the scooter.

[0071] Specifically, the buffer structure is disposed on the end face of the notch 211 portion of the first abutment portion 210.

[0072] In another embodiment, a buffer structure is provided on the limiting member 40. When the rocker arm 20 switches from the first position to the second position, the first abutting part 210 contacts the buffer structure to avoid absorbing the impact force when the rocker arm 20 hits the bottom, reduce abnormal noise and vibration, and improve the riding comfort of the scooter.

[0073] Specifically, the buffer structure is disposed on the top surface 420 of the limiting member 40.

[0074] In another embodiment, the buffer structure can be respectively disposed on the first abutment portion 210 and the limiting member 40. Specifically, the buffer structure is respectively disposed on the end face of the notch 211 portion of the first abutment portion 210 and the top face 420 of the limiting member 40 to avoid absorbing the impact force when the rocker arm 20 touches the bottom, reduce abnormal noise and vibration, and improve the riding comfort of the scooter.

[0075] In this embodiment, the buffer structure is a pad, a coating, or other components with a buffer structure, such as a spring. The pad can be made of foam or rubber, and the coating is a 0.3mm thick WC-Co coating. Using a pad or coating as the buffer structure in this application provides additional shock absorption and wear resistance without affecting the overall compactness and lightweight design.

[0076] like Figure 2 , Figure 5 and Figure 6 As shown, the bracket 230 is a long strip structure. Along the axial direction of the rotating shaft 30, the distance between the surface of the bracket 230 facing the end face of the rotating shaft 30 and the end face of the rotating shaft 30 is less than or equal to 0.1 mm.

[0077] The gap between the pivot 30 and the bracket 230 in this application is set to be less than or equal to 0.1mm, which ensures the accuracy and stability of torque transmission and improves the response speed and control precision of the front fork assembly during the steering process of the scooter.

[0078] Specifically, the connecting structure 220 is disposed on the bracket 230. The bracket 230 and the rotating shaft 30 are not in direct contact. The bracket 230 is connected to the rotating shaft 30 through the connecting structure 220.

[0079] Correspondingly, the end face of the rotating shaft 30 has a mating structure 310, and the connecting structure 220 and the mating structure 310 are mated to each other in a shape-adaptive manner so that the rotating shaft 30 and the rocker arm 20 rotate synchronously.

[0080] The mating structure 310 is set on the two end faces of the rotating shaft 30 along the axial direction. The rotating shaft 30 and the rocker arm 20 are relatively limited through the connecting structure 220 and the mating structure 310, thereby achieving synchronous rotation.

[0081] The matching shape of the connection structure 220 and the mating structure 310 in this application ensures synchronous movement between the rotating shaft 30 and the rocker arm 20, avoiding slippage and loosening during torque transmission.

[0082] In this embodiment, one of the connecting structure 220 and the mating structure 310 is a protrusion, and the other is a groove. At least a portion of the protrusion extends into the interior of the groove, and the outer surface of the protrusion abuts against the inner surface of the groove. This application utilizes the engagement of the protrusion and the groove to enhance the connection strength between the rotating shaft 30 and the rocker arm 20, while ensuring their synchronous movement. This improves the reliability and durability of the scooter under high torque input and reduces the risk of connection failure.

[0083] In this embodiment, the groove opening is polygonal, elliptical, or other irregular shape. The groove formation of this application can be adaptively set according to actual needs, which helps to increase the flexibility of the structural design. In a specific embodiment, the groove opening is square and the directional dimensions are 16.2mm × 16.2mm.

[0084] like Figure 1 As shown, the fork assembly also includes a fastener 70 and a fastening nut 80. The rocker arm 20 and the pivot 30 have mounting holes 60 that are connected to each other. The fastener 70 passes through the mounting hole 60. Specifically, the fastener 70 passes through the rocker arm 20, the pivot 30, and another rocker arm 20 in sequence and is locked with the fastening nut 80, thereby realizing the connection of the rocker arm 20, the pivot 30 and the fork body 10 into a whole.

[0085] Among them, fastener 70 is a long bolt, and fastener 70 and fastening nut 80 are threadedly locked together, thereby realizing a detachable connection.

[0086] like Figure 1 and Figure 2 As shown, the fork assembly also includes a shock-absorbing structure 50, which is disposed between the pivot 30 and the fork body 10 to buffer the impact force between the pivot 30 and the fork body 10, thereby improving the stability of the structure.

[0087] Specifically, an annular mounting space is formed between the inner circumferential surface of the first channel 110 on the fork body 10 and the outer circumferential surface of the pivot 30. The shock-absorbing structure 50 is disposed inside the mounting space, and the shock-absorbing structure 50 is interference-fitted with the inner circumferential surface of the first channel 110 and the outer circumferential surface of the pivot 30.

[0088] The inner circumferential surface of the first channel 110 has a diameter of Φ42mm~Φ42.15mm, and the outer circumferential surface of the rotating shaft 30 has a diameter of Φ41.7mm~Φ41.8mm.

[0089] The shock-absorbing structure 50 of this application adopts an interference fit installation method, which can effectively absorb and disperse impact force. The shock-absorbing structure 50, together with the setting structure of the limiting component 40, can not only achieve a full buffering effect, but also significantly reduce the amount of structural deformation of the scooter under extreme operation and extend the service life of the shock-absorbing structure 50.

[0090] In this embodiment, the damping structure 50 is formed in the shape of a sleeve. The damping structure 50 is sleeved on the rotating shaft 30, and the damping structure 50 does not exceed the installation space along the axial direction of the rotating shaft 30, so as to avoid the damping component interfering with the rotation of the rocker arm 20, and also to avoid interfering with the limiting effect of the limiting member 40.

[0091] Specifically, the damping structure 50 is a rubber sleeve structure, and the Shore hardness of the damping structure 50 is greater than or equal to 60 and less than or equal to 72.

[0092] In this embodiment, at least one of the two axial end faces of the damping structure 50 has an annular groove, and the distance between the two opposing annular groove walls gradually increases along the direction towards the groove opening. This application achieves the nonlinear deformation characteristics of the damping structure 50 through the gradual depth of the annular groove, enabling the damping structure 50 to provide differentiated damping effects under different levels of impact, thereby increasing shear resistance.

[0093] This embodiment also provides a scooter, which includes the front fork assembly described in the above embodiment. The scooter also includes a frame and wheels. The front fork body 10 of the front fork assembly is disposed on the frame, and the wheels are disposed on the rocker arm 20 of the front fork assembly. The scooter of this application uses the aforementioned front fork assembly, which ensures the rotation range of the rocker arm 20, improves the stability of the structure, and also enhances the handling performance and durability of the scooter.

[0094] This utility model has the following beneficial effects:

[0095] This application sets a limiting member 40 on the front fork body 10. The limiting member 40 cooperates with the rocker arm 20 to limit the rotation angle of the rocker arm 20. This helps to achieve precise control of the rotation angle of the rocker arm 20 while protecting the structure of the front fork assembly and avoiding structural damage caused by excessive rotation.

[0096] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0097] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A front fork assembly, characterized in that, include: Front fork body (10); Rocker arms (20), the rocker arms (20) being arranged in pairs on both sides of the fork body (10); A pivot (30) is rotatably disposed on the fork body (10), and the rocker arm (20) is disposed at both ends of the pivot (30); A limiting member (40) is disposed on the fork body (10). The rocker arm (20) has a first position and a second position for rotation switching. When the rocker arm (20) is in the first position, it is spaced apart from the limiting member (40). When the rocker arm (20) is in the second position, it abuts against the limiting member (40). The limiting member (40) is used to limit the rotation angle of the rocker arm (20).

2. The fork assembly according to claim 1, characterized in that, The fork body (10) has a first channel (110), the pivot (30) is mounted on the first channel (110), and the limiting member (40) is disposed on the bottom side of at least one of the two end openings of the first channel (110).

3. The fork assembly according to claim 2, characterized in that, The axis of the rotating shaft (30) is parallel to or collinear with the axis of the first channel (110); and / or The limiting member (40) is a block structure. The surface of the limiting member (40) facing the axis of the first channel (110) has a relief groove (410). The relief groove (410) is connected to the first channel (110). The two ends of the rotating shaft (30) are located outside the first channel (110). At least a portion of the ends of the rotating shaft (30) are located inside the relief groove (410).

4. The fork assembly according to claim 1, characterized in that, The rocker arm (20) includes: Connection structure (220); A bracket (230) is provided on the bracket (230), and the connecting structure (220) is provided on the bracket (230). The bracket (230) is connected to the rotating shaft (30) through the connecting structure (220). The end of the bracket (230) has a first abutment portion (210) provided facing the fork body (10). When the rocker arm (20) is in the first position, the first abutting part (210) and the limiting member (40) are spaced apart; When the rocker arm (20) is in the second position, the first abutting part (210) abuts against the limiting member (40).

5. The fork assembly according to claim 4, characterized in that, The first abutting portion (210) has a notch (211) on the side facing the limiting member (40). When the rocker arm (20) is in the first position, the end face of the notch (211) portion is spaced apart from the top face (420) of the limiting member (40), and an inclination angle A is formed between the end face of the notch (211) portion and the top face (420) of the limiting member (40), where A satisfies 17.5°≤A≤18.5°; When the rocker arm (20) is in the second position, the end face of the notch (211) abuts against the top surface (420) of the limiting member (40), and the contact area between the end face of the notch (211) and the top surface (420) of the limiting member (40) is ≥60mm. 2 .

6. The fork assembly according to claim 4, characterized in that, The fork assembly further includes a buffer structure disposed on the first abutment portion (210) and / or the limiting member (40). When the rocker arm (20) is in the second position, the first abutment portion (210) abuts against the limiting member (40) through the buffer structure.

7. The fork assembly according to claim 6, characterized in that, The buffer structure is a pad or a coating.

8. The fork assembly according to claim 4, characterized in that, Along the axial direction of the shaft (30), the distance between the surface of the bracket (230) facing the end face of the shaft (30) and the end face of the shaft (30) is less than or equal to 0.1 mm.

9. The fork assembly according to claim 4, characterized in that, The end face of the rotating shaft (30) has a mating structure (310), and the connecting structure (220) and the mating structure (310) are mated to each other in a shape-adaptive manner so that the rotating shaft (30) and the rocker arm (20) rotate synchronously.

10. The fork assembly according to claim 9, characterized in that, One of the connecting structure (220) and the mating structure (310) is a protrusion, and the other of the connecting structure (220) and the mating structure (310) is a groove. At least a portion of the protrusion extends into the interior of the groove, and the outer surface of the protrusion abuts against the inner surface of the groove.

11. The fork assembly according to claim 10, characterized in that, The groove opening is polygonal or elliptical.

12. The fork assembly according to any one of claims 1 to 11, characterized in that, An annular mounting space is formed between the inner circumferential surface of the first channel (110) on the fork body (10) and the outer circumferential surface of the pivot (30). The fork assembly also includes a shock-absorbing structure (50), which is disposed inside the mounting space. The shock-absorbing structure (50) is interference-fitted with the inner circumferential surface of the first channel (110) and the outer circumferential surface of the pivot (30).

13. The fork assembly according to claim 12, characterized in that, The damping structure (50) is formed in the shape of a sleeve. At least one of the two end faces of the damping structure (50) in the axial direction has an annular groove. The distance between the two opposite annular groove walls gradually increases in the direction toward the groove opening.

14. A scooter, characterized in that, The scooter includes the front fork assembly as described in any one of claims 1 to 13.

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