A head damping cup set and a two-wheeled vehicle

Abstract

The utility model relates to two -wheeled vehicle field discloses a kind of head damping bowl group and two -wheeled vehicle.It includes bowl, bowl and ball group, the ball group rotation sleeve is set on the bowl, the bowl sleeve is set on the ball group, and is rotationally connected with the ball group, the bowl or / and the bowl is equipped with flexible member with the ball group contact place, the flexible member is annular, and the flexible member and the ball group abutment form flexible contact.The utility model ball group becomes flexible contact by flexible member and bowl and bowl, forms double damping force to increase the friction in rotation process, can have damping force in rotation process, reduce the flexibility when front fork rotates, help driver to control direction;Simple structure, and convenient to assemble;Damping force and the smoothness of ball group rotation are balanced and reasonable.

Description

Technical Field

[0001] This utility model relates to the field of two-wheeled vehicle technology, specifically to a front damping cup assembly and a two-wheeled vehicle. Background Technology

[0002] The headrest is a component connecting the frame and the fork. It uses bearings to achieve steering and dynamic balance functions, allowing the fork and handlebars to rotate smoothly, thereby controlling the vehicle's steering. Existing headrests include an upper cup, a lower cup, and bearings. The bearings are rotatably mounted on the lower cup, which is connected to the fork. The upper cup is rotatably mounted on the bearings and is connected to the frame. When the handlebars are turned, the upper cup rotates, causing the fork to rotate relative to the frame.

[0003] However, bearings themselves rotate relatively flexibly, and existing upper and lower cups are in rigid contact with the bearing, resulting in low resistance and high flexibility during rotation. Therefore, when a two-wheeled vehicle (such as a bicycle or electric two-wheeler) is traveling at high speed, if the friction between the front wheel and the ground decreases due to bumps or other factors, the handlebars and front fork will rotate more flexibly, making it difficult for the rider to control the direction, increasing the risk of falls and injury. Utility Model Content

[0004] To address at least one of the aforementioned problems, this utility model first provides a front damping cup assembly, comprising an upper cup, a lower cup, and a ball bearing assembly. The ball bearing assembly is rotatably mounted on the lower cup, and the upper cup is mounted on the ball bearing assembly and rotatably connected to it. A flexible element is provided at the contact point between the upper cup and / or the lower cup and the ball bearing assembly. The flexible element is annular, and it abuts against the ball bearing assembly to form a flexible contact.

[0005] Optionally, the ball assembly includes a cage and a plurality of steel balls. The cage is sleeved on the lower cup, and the plurality of steel balls are arranged circumferentially at intervals around the cage and are all connected to the cage. The plurality of steel balls are in contact with the flexible member.

[0006] Optionally, the upper bowl and the lower bowl are made of 40Cr steel or bearing steel.

[0007] Optionally, the lower bowl has an outward-curved edge at the end furthest from the upper bowl.

[0008] Optionally, the lower bowl has an annular support slope on the side near the upper bowl, and the flexible member is disposed on the support slope.

[0009] Optionally, the upper bowl includes a collar and a mating ring. The outer diameter of the collar is larger than the outer diameter of the mating ring, and the inner diameter of the collar is larger than the inner diameter of the mating ring. The mating ring is located on the side of the collar away from the lower bowl and is fixedly connected to the collar. The ball bearing assembly is located inside the collar, and the flexible element is fixedly disposed on the inner wall of the collar.

[0010] Optionally, the inner wall of the collar is provided with an annular arc surface, the flexible element is fixedly disposed on the arc surface, and the cross section of the flexible element is an arc shape adapted to the arc surface.

[0011] Optionally, an arc-shaped annular groove is formed on the arc surface, and the flexible element is fixedly disposed in the arc-shaped annular groove.

[0012] Optionally, the flexible member is provided on both the inner wall of the upper bowl and the outer wall of the lower bowl. The thickness of the flexible member on the upper bowl is greater than the thickness of the flexible member on the lower bowl, or the thickness of the flexible member on the lower bowl is greater than the thickness of the flexible member on the upper bowl.

[0013] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0014] 1. The ball bearing assembly makes flexible contact with the upper and lower cups through flexible parts, which increases the friction during rotation and provides damping force during rotation. This reduces the flexibility of the fork rotation, helps the rider control the direction, and makes it less likely to fall over during high-speed riding.

[0015] 2. The flexible parts on the upper and lower cups create a double damping force on the rotation of the ball bearing assembly, which improves the damping effect. There is no need to set up a matching structure on the front fork or frame. The damping effect can be achieved by the damping cup assembly itself at the front of the bike. The structure is simple and easy to assemble.

[0016] 3. The design of the support slope and arc surface can create a two-point clamping effect on the steel ball, so that the upper and lower cups only have one point of contact with the steel ball, and the upper and lower cups are not easy to wobble radially, making the fit stable and reliable. The corresponding two flexible parts only need to be set at the contact points between the upper and lower cups and the steel ball. While ensuring the stable fit of the upper cup, lower cup, and ball assembly, the contact points and areas between the flexible parts and the steel ball are reduced, so that the fork and frame can still maintain a smooth rotation relationship. This makes the damping force and the smoothness of the ball assembly rotation more balanced and reasonable.

[0017] In addition, this utility model provides a two-wheeled vehicle, including the front damping cup assembly as described above.

[0018] Compared to existing technologies, the two-wheeled vehicle described in this utility model has the same advantages as the aforementioned front damping cup assembly, which will not be repeated here. Attached Figure Description

[0019] Figure 1 This is a usage scenario diagram of the front damping cup assembly in the embodiment of this utility model;

[0020] Figure 2 This is a cross-sectional view of the front damping cup assembly in an embodiment of this utility model;

[0021] Figure 3 This is an exploded view of the front damping cup assembly in an embodiment of this utility model.

[0022] Explanation of reference numerals in the attached drawings: 1. Upper bowl; 11. Collar ring; 12. Butt ring; 13. Arc-shaped ring groove; 2. Lower bowl; 21. Flanged edge; 22. Supporting slope; 3. Ball assembly; 31. Cage; 32. Steel ball; 33. Slot; 4. Flexible component. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the following description is provided in conjunction with the appendix. Figure 1-3 This application will be described in further detail.

[0024] In the first aspect, this utility model embodiment provides a front damping cup assembly, referring to... Figure 1 and Figure 2 The front damping headset assembly includes an upper headset 1, a lower headset 2, and a ball bearing assembly 3. The lower headset 2 is connected to the fork and rotates synchronously, with the ball bearing assembly 3 rotatably mounted on it. The upper headset 1 is connected to the frame and is mounted on the ball bearing assembly 3, rotatably connected to it. The upper headset 1 and lower headset 2 can rotate relative to each other via the roller assembly, allowing the fork to rotate relative to the frame for steering adjustment. Flexible elements 4, which are annular in shape, are provided at the contact points between the inner wall of the upper headset 1 and the outer wall of the lower headset 2 and the ball bearing assembly 3, forming a flexible contact. The flexible elements 4 on the upper headset 1 and lower headset 2 create a dual damping force on the rotation of the ball bearing assembly 3, improving the damping effect, increasing friction during rotation, and reducing the fork's dexterity during rotation, thus aiding the rider in steering. In another embodiment, the flexible member 4 may be provided only on the inner wall of the upper bowl 1; in yet another embodiment, the flexible member 4 may be provided only on the outer wall of the lower bowl 2.

[0025] The upper cup 1 and the lower cup 2 can be made of 40Cr steel; they can also be made of bearing steel. In this embodiment, it is preferred that both the upper cup 1 and the lower cup 2 are made of bearing steel. Bearing steel has relatively uniform hardness and high wear resistance, which makes the front damping cup assembly more stable and has a longer service life.

[0026] Reference Figure 2 and Figure 3The ball bearing assembly 3 includes a cage 31 and multiple steel balls 32. The cage 31 is annular and has multiple slots 33 spaced circumferentially. The number of slots 33 is the same as the number of steel balls 32 and they correspond one-to-one. The steel balls 32 are snapped into the slots 33. The steel balls 32 can rotate freely within the slots 33, and all parts of the steel balls 32, except for their bottoms, protrude from the slots 33. The cage 31 is fitted onto the lower bowl 2. The inner wall of the upper bowl 1 and the outer wall of the lower bowl 2 abut against the protruding parts of the multiple steel balls 32 in the slots 33, thus allowing the upper bowl 1 and the lower bowl 2 to rotate relative to each other.

[0027] The lower cup 2 has an outwardly bent flange 21 at the end furthest from the upper cup 1. This flange 21 increases the support area of ​​the lower cup 2 provided by the fork, improving the stability of the fork's support. The lower cup 2 has an annular support ramp 22 on the side closest to the upper cup 1, which gradually extends away from the axis of the lower cup 2 from top to bottom. The support ramp 22 supports the steel balls 32, thereby supporting the entire ball bearing assembly 3.

[0028] Reference Figure 2 and Figure 3 In this embodiment, the flexible component 4 is preferably made of rubber. In other embodiments, the flexible component 4 can also be made of materials with elastic deformation capabilities, such as silicone. The flexible component 4 on the lower bowl 2 is designated as the first flexible component; the flexible component 4 on the upper bowl 1 is designated as the second flexible component. Since the supporting inclined surface 22 supports the steel balls 32, the first flexible component is located on the supporting inclined surface 22, and all the steel balls 32 are in contact with the first flexible component. In this embodiment, the first flexible component and the lower bowl 2 are preferably fixed together by a rubber-coated injection molding process. This not only ensures a more secure fixation between the first flexible component and the lower bowl 2 but also guarantees high dimensional accuracy of the first flexible component in the same batch of front damping cup assemblies.

[0029] Reference Figure 2 and Figure 3 The upper bowl 1 includes an integrally formed collar 11 and a mating ring 12. The mating ring 12 is located on the side of the collar 11 away from the lower bowl 2, and the collar 11 and the mating ring 12 are concentrically arranged. The collar 11 is fitted onto the ball bearing assembly 3, and the mating ring 12 is plugged into the frame. The outer diameter of the collar 11 is larger than the outer diameter of the mating ring 12, and the inner diameter of the collar 11 is larger than the inner diameter of the mating ring 12. The ball bearing assembly 3 is located inside the collar 11.

[0030] Reference Figure 2 and Figure 3The inner wall of the collar 11 has an annular arc surface with an arc-shaped groove 13. The second flexible member is adapted to the arc-shaped groove 13 and is fixedly disposed within it, with its inner side facing the supporting inclined surface 22. Multiple steel balls 32 abut against the second flexible member. This allows the steel balls 32 to abut against the first and second flexible members on opposite sides, creating a two-point clamping effect. This ensures that both the upper bowl 1 and lower bowl 2 have only one point of contact with the steel ball 32, preventing radial wobbling and ensuring a stable and reliable fit. In another embodiment, the arc-shaped groove 13 can be omitted, and the second flexible member can be directly fixed to the arc surface. The second flexible member and the upper bowl 1 are fixed together using the same overmolding process. The arc-shaped groove 13 increases the contact area between the second flexible member and the upper bowl 1, improving the stability of their connection.

[0031] Without the curved surface, to prevent radial movement between the upper bowl 1 and the lower bowl 2, the steel ball 32 needs to abut against both the side of the collar 11 near the docking ring 12 and the inner wall of the collar 11, forming two contact points. Correspondingly, flexible components 4 would need to be installed at both locations on the upper bowl 1. Therefore, the curved surface also reduces the material used for the flexible components 4, lowering costs.

[0032] Reference Figure 2 and Figure 3 The thickness of the second flexible member is greater than that of the first flexible member. Thus, when the first flexible member experiences elastic fatigue due to pressure or long-term compression and cannot return to its original position, the resistance it generates to the steel ball 32 will decrease. However, because the second flexible member is thicker than the first, its elastic potential energy is higher. Therefore, the second flexible member will compensate for the lost damping force of the first flexible member, improving its service life and the stability of the damping force. In another embodiment, the thickness of the first flexible member is greater than that of the second flexible member.

[0033] The implementation principle of the front fork damping headset according to this application embodiment is as follows: the ball bearing assembly 3 becomes flexibly contacted with the upper cup 1 and the lower cup 2 through the flexible component 4. The flexible component 4 on the cup and the lower cup 2 forms a double damping force on the rotation of the ball bearing assembly 3, increasing the friction during rotation and providing damping force during rotation, thus reducing the flexibility of the fork rotation. The setting of the supporting inclined surface 22 and the arc surface can form a two-point clamping effect on the steel ball 32, so that the upper cup 1 and the lower cup 2 only have one point of contact with the steel ball 32, and the upper cup 1 and the lower cup 2 are not easy to wobble radially, making the fit stable and reliable. The corresponding two flexible components 4 only need to be set at the contact points between the upper cup 1 and the lower cup 2 and the steel ball 32, respectively. While ensuring the stable fit of the upper cup 1, the lower cup 2 and the ball bearing assembly 3, the contact positions and areas between the flexible component 4 and the steel ball 32 are reduced, so that the fork and the frame can still maintain a smooth rotation relationship, making the damping force and the smoothness of the rotation of the ball bearing assembly 3 more reasonable.

[0034] Secondly, another embodiment of the present invention provides a two-wheeled vehicle, including the front damping cup assembly described in the first aspect above.

[0035] Similarly, the components included in the "components," "mechanisms," and "devices" of this disclosure can also be flexibly combined. They can be modularly produced according to actual needs and assembled as an independent module; or they can be assembled separately to form a module in this device. The division of the above-mentioned components in this disclosure is only one embodiment for ease of reading and is not intended to limit the scope of protection of this disclosure. Any technical solution that includes the above-mentioned components and has the same function should be understood as an equivalent technical solution of this disclosure.

[0036] In the description of this disclosure, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element 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 disclosure.

[0037] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include at least one of that feature. In the description of this disclosure, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0038] In this disclosure, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0039] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0040] It should be noted that when a component is referred to as "fixed to," "set on," "fixed to," or "mounted on" another component, it can be directly on the other component or there may be an intervening component. When a component is considered to be "connected to another component," it can be directly connected to the other component or there may be an intervening component. Furthermore, when a component is considered to be "fixedly connected" to another component, the connection can be detachable or non-detachable, such as through socketing, snap-fitting, integral molding, welding, etc., which are achievable in conventional technologies and will not be elaborated upon here.

[0041] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0042] The above embodiments are merely illustrative of several implementation methods of this disclosure, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the inventive concept of this disclosure, and these modifications and improvements all fall within the protection scope of this disclosure.

Claims

1. A front damping cup assembly, characterized in that: It includes an upper bowl (1), a lower bowl (2) and a ball bearing assembly (3). The ball bearing assembly (3) is rotatably mounted on the lower bowl (2). The upper bowl (1) is mounted on the ball bearing assembly (3) and rotatably connected to it. A flexible element (4) is provided at the contact point between the upper bowl (1) and / or the lower bowl (2) and the ball bearing assembly (3). The flexible element (4) is annular and abuts against the ball bearing assembly (3) to form a flexible contact.

2. The front damping cup assembly according to claim 1, characterized in that: The ball assembly (3) includes a retainer (31) and a plurality of steel balls (32). The retainer (31) is sleeved on the lower bowl (2). The plurality of steel balls (32) are arranged circumferentially on the retainer (31) and are all connected to the retainer (31). The plurality of steel balls (32) are in contact with the flexible member (4).

3. The front damping cup assembly according to claim 1, characterized in that: The upper bowl (1) and the lower bowl (2) are made of 40Cr steel or bearing steel.

4. The front damping cup assembly according to claim 1, characterized in that: The lower bowl (2) has an outward-curved edge (21) at the end away from the upper bowl (1).

5. The front damping cup assembly according to claim 1, characterized in that: The lower bowl (2) has an annular support slope (22) on the side near the upper bowl (1), and the flexible member (4) is provided on the support slope (22).

6. The front damping cup assembly according to claim 1, characterized in that: The upper bowl (1) includes a collar (11) and a docking ring (12). The outer diameter of the collar (11) is larger than the outer diameter of the docking ring (12), and the inner diameter of the collar (11) is larger than the inner diameter of the docking ring (12). The docking ring (12) is located on the side of the collar (11) away from the lower bowl (2) and is fixedly connected to the collar (11). The ball assembly (3) is located inside the collar (11), and the flexible element (4) is fixedly disposed on the inner wall of the collar (11).

7. The front damping cup assembly according to claim 6, characterized in that: The inner wall of the collar (11) is provided with an annular arc surface, the flexible member (4) is fixedly disposed on the arc surface, and the cross section of the flexible member (4) is an arc shape adapted to the arc surface.

8. The front damping cup assembly according to claim 7, characterized in that: An arc-shaped annular groove (13) is provided on the arc surface, and the flexible component (4) is fixedly disposed in the arc-shaped annular groove (13).

9. The front damping cup assembly according to any one of claims 1-8, characterized in that: The inner wall of the upper bowl (1) and the outer wall of the lower bowl (2) are both provided with the flexible member (4). The thickness of the flexible member (4) on the upper bowl (1) is greater than the thickness of the flexible member (4) on the lower bowl (2), or the thickness of the flexible member (4) on the lower bowl (2) is greater than the thickness of the flexible member (4) on the upper bowl (1).

10. A two-wheeled vehicle, characterized in that, Includes the front damping cup assembly as described in any one of claims 1-9.

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