Frame and bicycle

Abstract

The utility model relates to a bicycle frame and a bicycle. The frame comprises a frame main body, an eccentric mechanism, a metal gasket and a locking piece, a five-way structure is formed at the bottom of the frame main body; the eccentric mechanism is arranged in the five-way structure and can rotate; the metal gasket is arranged on the inner surface of the five-way structure; the locking piece can penetrate through the side wall of the five-way structure and the metal gasket and move towards the interior of the five-way structure so as to abut against the eccentric mechanism, and then the eccentric mechanism is locked in the five-way structure. According to the frame, locking of the eccentric mechanism can be achieved through the locking piece, the structure of the frame can be simplified, and machining and production of the frame are facilitated; besides, through matching of the metal gaskets, the risk that the frame is cracked due to extrusion of the eccentric mechanism can be reduced, and the application range of the frame, especially a carbon fiber frame, can be expanded.

Description

Technical Field

[0001] This application relates to the field of bicycle technology, and in particular to a bicycle frame and bicycle. Background Technology

[0002] A bicycle frame typically consists of a head tube, top tube, down tube, seat tube, rear stays, and chain stays. The down tube, seat tube, and chain stays intersect to form a bottom bracket, which integrates an eccentric mechanism. By adjusting the position of this eccentric mechanism within the bottom bracket, the distance between the rear axle and the eccentric shaft of the mechanism can be adjusted, thereby achieving precise control of the bicycle chain tension.

[0003] However, existing structures for fixing eccentric mechanisms are complex. For example, US Patent 9168969B2 describes fixing an eccentric mechanism by cooperating a turbine and a worm gear, which not only increases the difficulty of machining but also makes operation inconvenient. Utility Model Content

[0004] Therefore, it is necessary to provide a frame and bicycle to address the aforementioned technical problems.

[0005] A frame, comprising:

[0006] The main frame has a five-way junction box at the bottom.

[0007] An eccentric mechanism is provided in the five-way structure and is capable of rotation;

[0008] A metal gasket is disposed on the inner surface of the five-way connector; and

[0009] The locking member can pass through the side wall of the five-way structure and the metal gasket and move toward the interior of the five-way structure to press against the eccentric mechanism, thereby locking the eccentric mechanism in the five-way structure.

[0010] When adjusting the tension of a bicycle chain, first remove the locking mechanism from the bottom bracket, then rotate the eccentric mechanism, for example, by moving the eccentric shaft of the eccentric mechanism from... Figure 3 The distance between the eccentric shaft of the eccentric mechanism and the rear wheel axle can be adjusted by rotating the mechanism from position A to position B. After the eccentric mechanism is adjusted to the appropriate position, the locking member can be moved towards the inside of the bottom bracket structure until it presses against the eccentric mechanism. The friction between the locking member and the eccentric mechanism, as well as between the inner surface of the bottom bracket structure and the eccentric mechanism, can be used to lock the eccentric mechanism into the bottom bracket structure. It is evident that this application achieves the locking of the eccentric mechanism using only the locking member, which simplifies the frame structure and facilitates frame processing and production.

[0011] The main body of a bicycle frame is typically made of carbon fiber, primarily due to its advantages such as light weight, high strength, good comfort, and flexible design. However, carbon fiber is relatively brittle, meaning that when subjected to impact or external force, unlike metals such as aluminum alloys which have better ductility and toughness to absorb energy through deformation, carbon fiber tends to crack directly after reaching its bearing limit rather than undergoing significant deformation first. To address this, this application incorporates metal gaskets, such as aluminum alloy gaskets, on the inner surface of the bottom bracket structure. When the locking mechanism locks the eccentric mechanism into the bottom bracket structure, the eccentric mechanism is subjected to pressure from the locking mechanism, applying external force to the bottom bracket structure. This force acts on the metal gaskets, which possess good toughness and ductility, enabling them to withstand deformation to a certain extent without breaking. When subjected to external impact, the metal gaskets can disperse and absorb energy through their own deformation, thereby reducing the risk of cracking.

[0012] As can be seen, the frame provided in this application embodiment can use locking components to lock the eccentric mechanism, which simplifies the frame structure and facilitates frame processing and production. In addition, the use of metal gaskets can reduce the risk of the frame cracking due to the compression of the eccentric mechanism, thus expanding the range of applications for the frame, especially carbon fiber frames.

[0013] In one embodiment, the five-way structure also has a limiting through hole; the side of the metal gasket opposite to the eccentric mechanism has a limiting part protruding, the limiting part is embedded in the limiting through hole, and the limiting part allows the locking member to pass through and be connected to the locking member.

[0014] In one embodiment, the limiting part has a threaded hole, and the locking member is a threaded member that mates with the threaded hole.

[0015] In one embodiment, the locking member has a screwing groove at the end away from the eccentric mechanism.

[0016] In one embodiment, two limiting portions are provided, and the two limiting portions are spaced apart at both ends of the metal gasket along the length direction of the metal gasket;

[0017] There are also two locking components, and each locking component corresponds to a limiting part.

[0018] In one embodiment, the inner surface of the five-way structure also has a groove for accommodating the metal gasket, the groove having a depth less than or equal to the thickness of the metal gasket.

[0019] In one embodiment, the metal gasket extends from one end of the bottom bracket structure to the other along the eccentric axis of the eccentric mechanism; and / or, the metal gasket is an aluminum alloy gasket.

[0020] In one embodiment, the frame further includes at least one of the following features:

[0021] The surface of the metal pad facing the eccentric mechanism is provided with a first anti-slip part;

[0022] The inner surface of the five-way structure is also provided with a second anti-slip part;

[0023] The locking member has a third anti-slip part on its surface used to press against the eccentric mechanism.

[0024] In one embodiment, the frame body is made of carbon fiber.

[0025] A bicycle comprising a frame as described in any of the preceding claims.

[0026] When adjusting the tension of a bicycle chain, first remove the locking mechanism from the bottom bracket, then rotate the eccentric mechanism, for example, by moving the eccentric shaft of the eccentric mechanism from... Figure 3 The distance between the eccentric shaft of the eccentric mechanism and the rear wheel axle can be adjusted by rotating the mechanism from position A to position B. After the eccentric mechanism is adjusted to the appropriate position, the locking member can be moved towards the inside of the bottom bracket structure until it presses against the eccentric mechanism. The friction between the locking member and the eccentric mechanism, as well as between the inner surface of the bottom bracket structure and the eccentric mechanism, can be used to lock the eccentric mechanism into the bottom bracket structure. It is evident that this application achieves the locking of the eccentric mechanism using only the locking member, which simplifies the frame structure and facilitates frame processing and production.

[0027] The main body of a bicycle frame is typically made of carbon fiber, primarily due to its advantages such as light weight, high strength, good comfort, and flexible design. However, carbon fiber is relatively brittle, meaning that when subjected to impact or external force, unlike metals such as aluminum alloys which have better ductility and toughness to absorb energy through deformation, carbon fiber tends to crack directly after reaching its bearing limit rather than undergoing significant deformation first. To address this, this application incorporates metal gaskets, such as aluminum alloy gaskets, on the inner surface of the bottom bracket structure. When the locking mechanism locks the eccentric mechanism into the bottom bracket structure, the eccentric mechanism is subjected to pressure from the locking mechanism, applying external force to the bottom bracket structure. This force acts on the metal gaskets, which possess good toughness and ductility, enabling them to withstand deformation to a certain extent without breaking. When subjected to external impact, the metal gaskets can disperse and absorb energy through their own deformation, thereby reducing the risk of cracking.

[0028] As can be seen, the bicycle provided in this application embodiment can use locking components to lock the eccentric mechanism, which simplifies the frame structure and facilitates frame processing and production. In addition, the use of metal gaskets can reduce the risk of the frame cracking due to the compression of the eccentric mechanism, thus expanding the range of applications for the frame, especially for carbon fiber frames. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the frame structure provided in one embodiment of this application.

[0030] Figure 2 for Figure 1 A partial view of the chassis is provided.

[0031] Figure 3 for Figure 1 A schematic diagram illustrating the process of the eccentric mechanism of the provided frame moving from position A to position B.

[0032] Figure 4 for Figure 2 A structural schematic diagram of the main body of the provided chassis.

[0033] Figure 5 for Figure 2 A schematic diagram of the structure of the metal spacers on the provided frame.

[0034] The labels in the attached diagram are explained as follows:

[0035] 10. Frame; 100. Frame body; 110. Bottom bracket structure; 110a. Limiting through hole; 110b. Groove; 200. Eccentric mechanism; 210. Bottom bracket; 220. Outer sleeve; 300. Metal gasket; 310. Limiting part; 310a. Threaded hole; 400. Locking part; 400a. Tightening groove; M. Eccentric shaft. Detailed Implementation

[0036] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0037] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.

[0038] Furthermore, where the terms "first" and "second" appear, these terms are 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" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0039] In this application, 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 application based on the specific circumstances.

[0040] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via 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. Similarly, "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.

[0041] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0042] like Figure 1 and Figure 2 As shown, a vehicle frame 10 provided in one embodiment of this application includes a vehicle frame body 100, an eccentric mechanism 200, a metal gasket 300, and a locking member 400; a bottom bracket structure 110 is formed at the bottom of the vehicle frame body 100; the eccentric mechanism 200 is disposed in the bottom bracket structure 110 and is rotatable; the metal gasket 300 is disposed on the inner surface of the bottom bracket structure 110; the locking member 400 can pass through the side wall of the bottom bracket structure 110 and the metal gasket 300 and move toward the interior of the bottom bracket structure 110 to press against the eccentric mechanism 200, thereby locking the eccentric mechanism 200 in the bottom bracket structure 110.

[0043] The frame 10 can be applied to bicycles, such as human-powered bicycles or electric bicycles.

[0044] When adjusting the tension of the bicycle chain, first remove the locking element 400 from the bottom bracket structure 110, then rotate the eccentric mechanism 200, for example, by rotating the eccentric shaft M of the eccentric mechanism 200 from... Figure 3 The distance between the eccentric shaft M of the eccentric mechanism 200 and the rear wheel axle can be adjusted by rotating position A to position B. After the eccentric mechanism 200 is adjusted to the appropriate position, the locking member 400 can be moved toward the inside of the bottom bracket structure 110 until it presses against the eccentric mechanism 200. The friction between the locking member 400 and the eccentric mechanism 200, and between the inner surface of the bottom bracket structure 110 and the eccentric mechanism 200, can be used to lock the eccentric mechanism 200 in the bottom bracket structure 110. It can be seen that this application can achieve the locking of the eccentric mechanism 200 by using only the locking member 400, which simplifies the structure of the frame 10 and facilitates the processing and production of the frame 10.

[0045] The frame body 100 is typically made of carbon fiber, primarily due to its advantages such as light weight, high strength, good comfort, and flexible design. However, carbon fiber is relatively brittle, meaning that when subjected to impact or external force, unlike metals such as aluminum alloys which have better ductility and toughness to absorb some energy through deformation, carbon fiber tends to crack directly after reaching its bearing limit rather than undergoing significant deformation first. To address this, this application provides a metal washer 300, such as an aluminum alloy washer, on the inner surface of the bottom bracket structure 110. When the locking member 400 locks the eccentric mechanism 200 into the bottom bracket structure 110, the eccentric mechanism 200 is subjected to pressure from the locking member 400, applying external force to the bottom bracket structure 110. This external force can act on the metal washer 300. The metal washer 300 has good toughness and ductility, enabling it to withstand deformation to a certain extent without breaking. When subjected to external impact, the metal washer 300 can disperse and absorb energy through its own deformation, thereby reducing the risk of cracking.

[0046] As can be seen, the frame 10 provided in this application embodiment can use the locking member 400 to lock the eccentric mechanism 200, which can simplify the structure of the frame 10 and facilitate the processing and production of the frame 10. In addition, with the cooperation of the metal gasket 300, the risk of the frame 10 cracking due to the compression of the eccentric mechanism 200 can be reduced, which can expand the application range of the frame 10, especially the carbon fiber frame 10.

[0047] like Figure 4 and Figure 5 As shown, in some embodiments of this application, the bottom bracket structure 110 also has a limiting through hole 110a; a limiting part 310 protrudes from the side of the metal gasket 300 away from the eccentric mechanism 200, the limiting part 310 is embedded in the limiting through hole 110a, and the limiting part 310 allows the locking member 400 to pass through and be connected to the locking member 400. By providing the limiting part 310 on the metal gasket 300, the limiting part 310 can be used to limit the metal gasket 300, preventing the metal gasket 300 from shifting in the bottom bracket structure 110, which can effectively reduce the risk of the frame 10 cracking due to the compression of the eccentric mechanism 200.

[0048] The limiting part 310 can be integrally formed with the metal gasket 300, thus ensuring the connection strength between the two. As an example, the limiting part 310 can be integrally formed with the metal gasket 300 by means of casting or other methods.

[0049] The limiting part 310 can be directly placed in the limiting through hole 110a of the five-way structure 110, or it can be embedded in the limiting through hole 110a of the five-way structure 110 by means of interference fit, or it can be connected by other means, such as bonding, welding, etc.

[0050] The limiting part 310 can be cylindrical, polyhedral, etc., and this application does not impose specific limitations here.

[0051] In one embodiment, such as Figure 5 As shown, two limiting parts 310 are provided, and the two limiting parts 310 are spaced apart at both ends of the metal gasket 300 along the length direction of the metal gasket 300; two locking members 400 are also provided, and the locking members 400 correspond one-to-one with the limiting parts 310. This arrangement of the number and position of the limiting parts 310 can limit the metal gasket 300 from all directions, and can further effectively reduce the risk of the frame 10 cracking due to the compression of the eccentric mechanism 200.

[0052] In one embodiment, the limiting part 310 has a threaded hole 310a, and the locking member 400 is a threaded member that mates with the threaded hole 310a. The limiting part 310 and the locking member 400 can be connected by screws, and the length of the locking member 400 extending into the bottom bracket structure 110 can be continuously adjusted to effectively lock eccentric mechanisms 200 of different specifications. It is understood that the metal gasket 300 also has a through hole facing the threaded hole 310a, through which the locking member 400 passes, and this through hole can be a smooth hole or a threaded hole 310a.

[0053] Optionally, such as Figure 2 As shown, the locking member 400 has a screw-in groove 400a at the end furthest from the eccentric mechanism 200. A disassembly / assembly tool can be inserted into the screw-in groove 400a to screw the locking member 400, facilitating disassembly and assembly and simplifying operation. The shape and size of the screw-in groove 400a can be set according to the specifications of the disassembly / assembly tool, and are not limited herein.

[0054] In one embodiment, such as Figure 4 As shown, the cavity wall of the mounting cavity also has a groove 110b for accommodating the metal gasket 300, the groove depth of which is less than or equal to the thickness of the metal gasket 300. By using the groove 110b to accommodate at least a portion of the metal gasket 300, the metal gasket 300 is prevented from occupying too much space in the bottom bracket structure 110, allowing the inner surface of the bottom bracket structure 110 to contact the metal gasket 300 as much as possible, thereby increasing the locking effect on the eccentric mechanism 200.

[0055] The surface of the metal gasket 300 facing the eccentric mechanism 200 is an arc surface, and the curvature of the arc surface is the same as the curvature of the inner surface of the bottom bracket structure 110. Thus, after the metal gasket 300 is installed in the groove 110b, the surface of the metal gasket 300 facing the eccentric mechanism 200 and the inner surface of the bottom bracket structure 110 can be regarded as a smooth and complete arc surface.

[0056] In some embodiments of this application, the metal gasket 300 may extend from one end of the bottom bracket structure 110 to the other end along the eccentric axis of the eccentric mechanism 200. This can maximize the contact area between the metal gasket 300 and the eccentric mechanism 200, increase the locking effect on the eccentric mechanism 200, and also increase the force-bearing area of ​​the metal gasket 300, reducing the risk of the frame 10 cracking due to the compression of the eccentric mechanism 200.

[0057] In some embodiments of this application, the surface of the metal pad 300 facing the eccentric mechanism 200 is provided with a first anti-slip portion (not shown in the figures). The first anti-slip portion can increase the friction between the metal pad 300 and the eccentric mechanism 200, thereby increasing the locking effect on the eccentric mechanism 200.

[0058] The first anti-slip part can be an anti-slip coating, an anti-slip pattern, or an anti-slip protrusion, etc., and this application does not limit it.

[0059] In some embodiments of this application, the inner surface of the bottom bracket structure 110 is further provided with a second anti-slip portion (not shown in the drawings). The second anti-slip portion can increase the friction between the inner surface of the bottom bracket structure 110 and the eccentric mechanism 200, thereby increasing the locking effect on the eccentric mechanism 200.

[0060] The second anti-slip part can be an anti-slip coating, an anti-slip pattern, or an anti-slip protrusion, etc., and this application does not limit it.

[0061] In some embodiments of this application, the surface of the locking member 400 used to press against the eccentric mechanism 200 is provided with a third anti-slip portion (not shown in the drawings). The third anti-slip portion can increase the friction between the locking member 400 and the eccentric mechanism 200, thereby increasing the locking effect on the eccentric mechanism 200.

[0062] The third anti-slip part can be an anti-slip coating, an anti-slip pattern, or an anti-slip protrusion, etc., and this application does not limit it.

[0063] In some embodiments of this application, the frame body 100 may include a downtube, a seatpost, and a rear seat fork, with the junction of the downtube, seatpost, and rear seat fork forming a bottom bracket structure 110. The downtube, seatpost, and rear seat fork may be an integral structure, which can ensure the strength of the frame body 100.

[0064] In some embodiments of this application, such as Figure 2As shown, the eccentric mechanism 200 includes a central shaft 210 and an outer sleeve 220. The outer sleeve 220 is disposed in the bottom bracket structure 110, and the central shaft 210 is eccentrically disposed within the outer sleeve 220. A position sensor is mounted on the end of the central shaft 210 extending out of the outer sleeve 220. It should be noted that the axis of the central shaft 210 is the eccentric shaft M mentioned above.

[0065] On the other hand, this application also provides a bicycle that includes the frame 10 described in any of the preceding claims.

[0066] The bicycle can be a human-powered bicycle or an electric bicycle.

[0067] When adjusting the tension of the bicycle chain, first remove the locking element 400 from the bottom bracket structure 110, then rotate the eccentric mechanism 200, for example, by rotating the eccentric shaft M of the eccentric mechanism 200 from... Figure 2 The distance between the eccentric shaft M of the eccentric mechanism 200 and the rear wheel axle can be adjusted by rotating position A to position B. After the eccentric mechanism 200 is adjusted to the appropriate position, the locking member 400 can be moved toward the inside of the bottom bracket structure 110 until it presses against the eccentric mechanism 200. The friction between the locking member 400 and the eccentric mechanism 200, and between the inner surface of the bottom bracket structure 110 and the eccentric mechanism 200, can be used to lock the eccentric mechanism 200 in the bottom bracket structure 110. It can be seen that this application can achieve the locking of the eccentric mechanism 200 by using only the locking member 400, which simplifies the structure of the frame 10 and facilitates the processing and production of the frame 10.

[0068] The frame body 100 is typically made of carbon fiber, primarily due to its advantages such as light weight, high strength, good comfort, and flexible design. However, carbon fiber is relatively brittle, meaning that when subjected to impact or external force, unlike metals such as aluminum alloys which have better ductility and toughness to absorb some energy through deformation, carbon fiber tends to crack directly after reaching its bearing limit rather than undergoing significant deformation first. To address this, this application includes a metal washer 300, such as an aluminum alloy washer, on the inner surface of the bottom bracket structure 110. When the locking member 400 and eccentric mechanism 200 are locked in the bottom bracket structure 110, the eccentric mechanism 200 is subjected to pressure from the locking member 400, applying external force to the bottom bracket structure 110. This external force can act on the metal washer 300. The metal washer 300 has good toughness and ductility, enabling it to withstand deformation to a certain extent without breaking. When subjected to external impact, the metal washer 300 can disperse and absorb energy through its own deformation, thereby reducing the risk of cracking.

[0069] As can be seen, the bicycle provided in this application embodiment can use the locking member 400 to lock the eccentric mechanism 200, which can simplify the structure of the frame 10 and facilitate the processing and production of the frame 10. In addition, with the cooperation of the metal gasket 300, the risk of the frame 10 cracking due to the compression of the eccentric mechanism 200 can be reduced, which can expand the application range of the frame 10, especially the carbon fiber frame 10.

[0070] 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.

[0071] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A vehicle frame, characterized by, include: The main frame has a five-way junction box at the bottom. An eccentric mechanism is provided in the five-way structure and is capable of rotation; A metal gasket is disposed on the inner surface of the five-way junction structure; as well as The locking member can pass through the side wall of the five-way structure and the metal gasket and move toward the interior of the five-way structure to press against the eccentric mechanism, thereby locking the eccentric mechanism in the five-way structure.

2. Frame according to claim 1, characterized in that The five-way structure also has a limiting through hole; the metal gasket has a limiting part protruding on the side opposite to the eccentric mechanism, the limiting part is embedded in the limiting through hole, and the limiting part allows the locking member to pass through and be connected to the locking member.

3. Frame according to claim 2, characterized in that The limiting part has a threaded hole, and the locking member is a threaded member that mates with the threaded hole.

4. Frame according to claim 3, characterized in that The locking member has a screwing groove at the end away from the eccentric mechanism.

5. The frame of claim 2, wherein, The limiting part is provided in two parts, and the two limiting parts are spaced apart at both ends of the metal gasket along the length direction of the metal gasket; There are also two locking components, and each locking component corresponds to a limiting part.

6. The frame of claim 2, wherein, The inner surface of the five-way structure also has a groove for accommodating the metal gasket, the groove depth being less than or equal to the thickness of the metal gasket.

7. Frame according to any of claims 1 to 6, characterized in that The metal gasket extends from one end of the five-way structure to the other end along the eccentric axis of the eccentric mechanism; and / or, the metal gasket is an aluminum alloy gasket.

8. Frame according to any of claims 1 to 6, characterized in that The frame also includes at least one of the following features: The surface of the metal pad facing the eccentric mechanism is provided with a first anti-slip part; The inner surface of the five-way structure is also provided with a second anti-slip part; The locking member has a third anti-slip part on its surface used to press against the eccentric mechanism.

9. Frame according to any of claims 1 to 6, characterized in that The main body of the vehicle frame is made of carbon fiber.

10. A bicycle characterized in that, Includes the frame as described in any one of claims 1 to 9.

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