Front fork connecting structure and bicycle

Abstract

The front fork connecting structure comprises a front fork, a first rotating platform is formed on the front fork, a first assembly hole penetrating through the front fork is formed in the first rotating platform, the edge of the top of the front fork extends upwards to form a connecting part, a connecting piece is fixed to the top of the connecting part, and a second assembly hole penetrating through the front fork is formed in the first assembly hole. A second assembling hole is formed in the connecting piece, and the top of the connecting piece is used for fixing a handlebar; the connecting shaft penetrates through the first assembly hole and the second assembly hole, one end of the connecting shaft is fixed on the front fork, and the other end of the connecting shaft is fixed on the connecting piece; the frame comprises a head pipe, the head pipe is arranged on the connecting shaft in a sleeving mode, the connecting shaft and the head pipe are connected through a bowl set assembly, and a second rotating platform is formed at the top of the head pipe; the front fork, the connecting piece and the handlebar can rotate relative to the head tube, the first rotating platform provides support for the head tube, and the second rotating platform provides support for the connecting piece.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bicycles, in particular to a front fork connecting structure and a bicycle. BACKGROUND

[0002] In the design and development process of bicycles, the front fork connecting structure, as an important part of the bicycle, has a crucial influence on the controllability, stability and comfort of the rider.

[0003] The existing bicycles, such as the structure of the hidden wiring of the bowl set of the bicycle disclosed in the announcement No. CN215971921U, the front fork of such bicycles is generally assembled by directly passing through the stem pipe through the head tube and fixing the handlebar on the stem pipe. The overall structure of the head tube and the stem pipe is relatively loose, and only the bowl set is used for assembly and fixation. Only a small part of the front fork plays a role in supporting the head tube and the frame. Over a long period of time, the front fork structure strength is easily damaged, affecting the service life. In addition, there is a lack of assembly structure of the front fork and the head tube with certain aerodynamic effect on the market.

[0004] The above content is only used to assist in understanding the technical solutions of the present application and does not represent the acknowledgement of the above content as the closest prior art to the present application. SUMMARY

[0005] Based on this, the present application provides a front fork connecting structure and a bicycle to solve one of the above technical problems.

[0006] The technical solution adopted by the present application to solve its technical problems is: in the first aspect, a front fork connecting structure, comprising: a front fork, a first rotating platform is formed on the front fork, a first assembly hole penetrating the front fork is formed on the first rotating platform, a connecting part is upwardly extended at the edge of the top of the front fork, a connecting piece is fixed at the top of the connecting part, a second assembly hole is formed on the connecting piece, and the top of the connecting piece is used for fixing a handlebar; a connecting shaft penetrating the first assembly hole and the second assembly hole, one end of the connecting shaft is fixed on the front fork, and the other end of the connecting shaft is fixed on the connecting piece; a frame comprising a head tube, the head tube is sleeved on the connecting shaft, the connecting shaft and the head tube are connected through a bowl set assembly, and a second rotating platform is formed at the top of the head tube; the front fork, the connecting piece and the handlebar can rotate relative to the head tube, the first rotating platform provides support for the head tube, and the second rotating platform provides support for the connecting piece.

[0007] In some embodiments, the cross section of the front fork is half spindle-shaped, the front fork and the head tube are assembled compactly, and have good aerodynamic effect.

[0008] In some embodiments, the connecting portion top is formed with an assembly groove, and an assembly block is glued in the assembly groove, the assembly block is fixedly connected with the connecting piece through clamping, and the handlebar is fixed with the assembly block through fasteners.

[0009] In some embodiments, cable installation holes are formed in the front fork, the assembly block, the connecting piece and the handlebar and are in communication with each other, and the cable installation holes are used for inserting cables.

[0010] In some embodiments, the cable installation holes are formed with openings on both sides of the handlebar and the lower part of the front fork.

[0011] In some embodiments, the handlebar is formed with a mounting plane for mounting the handlebar, the mounting plane is formed with a wire passing hole at the center, the handlebar top is provided with a dust cover for covering the mounting plane, one end of the dust cover is formed with a limiting portion for limiting, and the other end is formed with a mounting portion capable of being fixed on the handlebar through a screw.

[0012] In some embodiments, the connecting shaft comprises an upper connecting shaft and a lower connecting shaft which are threadedly connected with each other, and the bowl assembly comprises an upper bowl piece and a lower bowl piece which are respectively located at the top and the bottom of the head tube.

[0013] In some embodiments, the lower connecting shaft is provided with a lower cover at the end.

[0014] In some embodiments, a packing ring is arranged between the upper bowl piece and the upper connecting shaft.

[0015] In the second aspect, the application provides a bicycle comprising the front fork connecting structure of any one of the first aspect.

[0016] The application has the advantages that the head tube and the front fork are more compactly assembled, are supported by the first rotating platform and the second rotating platform, the front fork is more balanced in force, the structure is more stable, has better structural strength and overall coordination, the cooperation of the front fork and the head tube has good aerodynamic effect, and the overall riding performance and aesthetic property are improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor.

[0018] Figure 1 is a schematic view of the frame and the front fork assembly of the application.

[0019] Figure 2 is another perspective view of the frame and fork assembly of the present application.

[0020] Figure 3 is a perspective view of the internal structure of the fork and head tube of the present application.

[0021] Figure 4 is a perspective view of the frame of the present application.

[0022] Figure 5 is a perspective view of the fork and handlebar assembly of the present application.

[0023] Figure 6 is an exploded view of the partial components of the present application.

[0024] Figure 7 is an exploded view of the handlebar and dust cover of the present application.

[0025] BRIEF DESCRIPTION OF DRAWINGS: 1, fork, 101, connecting portion, 2, first rotating platform, 3, second rotating platform, 4, first assembly hole, 5, second assembly hole, 6, connecting piece, 7, handlebar, 8, frame, 801, head tube, 9, bowl assembly, 901, upper bowl piece, 902, lower bowl piece, 10, connecting shaft, 1001, upper connecting shaft, 1002, lower connecting shaft, 11, assembly groove, 12, assembly block, 13, cable mounting hole, 14, cable, 15, opening, 16, mounting plane, 17, wire passing hole, 18, dust cover, 1801, limiting portion, 1802, mounting portion, 19, lower cover, 20, compression ring. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work are within the protection scope of the present application. In addition, the technical solutions of various embodiments can be combined with each other, but it must be based on that a person of ordinary skill in the art can realize, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope of the present application.

[0027] In the embodiments of the present application, please refer to Figures 1-7As shown, according to the first aspect of the present application, a front fork connecting structure is provided, mainly comprising: a front fork 1, a first rotating platform 2 is formed on the front fork 1, a first assembly hole 4 is opened on the first rotating platform 2, a connecting part 101 is extended upward at the edge of the top of the front fork 1, a connecting piece 6 is fixed on the top of the connecting part 101, a second assembly hole 5 is opened on the connecting piece 6, and a handlebar 7 is fixed on the top of the connecting piece 6; a connecting shaft 10 penetrates through the first assembly hole 4 and the second assembly hole 5, one end of the connecting shaft 10 is fixed on the front fork 1, and the other end of the connecting shaft 10 is fixed on the connecting piece 6; a frame 8 comprises a head tube 801, the head tube 801 is sleeved on the connecting shaft 10, the connecting shaft 10 and the head tube 801 are connected through a bowl group assembly 9, and a second rotating platform 3 is formed on the top of the head tube 801; the front fork 1, the connecting piece 6 and the handlebar 7 can rotate relative to the head tube 801, the first rotating platform 2 provides support for the head tube 801, and the second rotating platform 3 provides support for the connecting piece 6.

[0028] Some preferred / modified embodiments based on the above-mentioned embodiments will be further described below. Any one or a plurality of the following embodiments can be selected and combined.

[0029] As shown in the drawings, Figures 5-6 The cross section of the front fork 1 is half spindle-shaped, the front fork 1 is assembled compactly with the head tube 801, has good aerodynamic effect, and the connecting part 101 can well fit the head tube 801 during rotation. Specifically, the side of the connecting part 101 contacting the head tube 801 is a concave arc surface.

[0030] Further, a packing ring 20 is arranged between the upper bowl piece 901 and the upper connecting shaft 1001, and the packing ring 20 plays a role of fastening the bowl group assembly 9.

[0031] Further, an assembly groove 11 is formed on the top of the connecting part 101, an assembly block 12 is glued in the assembly groove 11, the assembly block 12 is fixedly connected with the connecting piece 6 through clamping, and the handlebar 7 is fixed with the assembly block 12 through fasteners. During installation, first, the bowl group assembly 9 is assembled into the head tube 801, then the head tube 801 is placed on the first rotating platform 3, the packing ring 20 is placed on the second rotating platform 3, and the assembly block 12 is arranged in the assembly groove 11, the head tube 801 and the front fork 1 are fixed together through the connecting shaft 10 and the fasteners, and then the handlebar 7 is fixed on the assembly block 12 through the fasteners.

[0032] Specifically, cable installation holes 13 are opened on the front fork 1, the assembly block 12, the connecting piece 6 and the handlebar 7, and the cable installation holes 13 are used for inserting cables 14.

[0033] AsFigure 2 As shown, the cable mounting holes 13 form openings 15 on both sides of the handlebars 7 and the lower part of the front fork 1. The openings 15 are used to connect external functional components, such as brake calipers, brake levers 7, and headlights.

[0034] like Figure 7 As shown, the handlebar 7 has a mounting surface 16 for mounting the handlebar 7. A wire hole 17 is provided at the center of the mounting surface 16. A dust cover 18 is provided on the top of the handlebar 7 to cover the mounting surface 16. One end of the dust cover 18 has a limiting part 1801 for limiting, and the other end has a mounting part 1802 that can be fixed to the handlebar 7 with screws. The wire hole 17 is used to insert the cable 14. The diameter of the wire hole 17 is larger than the diameter of the cable mounting hole 13. After the dust cover 18 is covered, it can not only prevent dust, but also cover the mounting surface 16, making the overall appearance more beautiful. When installing the dust cover 18, first insert the limiting part 1801 into the reserved gap on the handlebar 7, then cover and install it on the handlebar 7, and finally fix the mounting part 1802 at the other end with screws.

[0035] like Figure 6 As shown, the connecting shaft 10 includes an upper connecting shaft 1001 and a lower connecting shaft 1002 that are threaded together. The headset assembly 9 includes an upper headset 901 and a lower headset 902, which are located at the top and bottom of the head tube 801, respectively. During installation, the upper connecting shaft 1001 is inserted through the wire hole 17 and the second mounting hole 5. Its end diameter is larger, so it will not fall off. The lower connecting shaft 1002 is inserted from bottom to top through the first mounting hole 4. The upper connecting shaft 1001 and the lower connecting shaft 1002 are assembled by threads. At the same time, the connecting shaft 10 also passes through the head tube 801 placed on the first rotating platform 2. Therefore, the head tube 801 and the frame 8 are fixed.

[0036] Furthermore, a lower cover 19 is provided at the end of the lower connecting shaft 1002.

[0037] According to a second aspect of this application, this application also provides a bicycle that includes the front fork 1 connection structure described in any of the first aspects, the bicycle having good structural stability and aerodynamic performance, while also being aesthetically pleasing.

[0038] The various embodiments of this application have now been described in detail. To avoid obscuring the concept of this application, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0039] Finally, it should be noted that the above is only the preferred embodiment of the application, the foregoing embodiments are only to illustrate the technical solutions of the application, not to limit them; although the application is described in detail with reference to the foregoing embodiments, those skilled in the art will understand that the technical solutions described in the foregoing embodiments can still be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not drive the essence of the corresponding technical solutions out of the spirit and scope of the technical solutions of the embodiments of the application.

Claims

1. A front fork connecting structure characterized by comprising: The utility model provides a front fork connecting structure of bicycle, which comprises a front fork, a handlebar and a frame. The front fork is provided with a first rotating platform, and the first rotating platform is provided with a first assembly hole penetrating through the front fork. The top edge of the front fork is extended upward to form a connecting part, and the top of the connecting part is fixed with a connecting piece. The connecting piece is provided with a second assembly hole, and the top of the connecting piece is used for fixing a handlebar. A connecting shaft penetrates through the first assembly hole and the second assembly hole.

2. A fork connection structure according to claim 1, wherein One end of the connecting shaft is fixed on the front fork, and the other end is fixed on the connecting piece.

3. The fork connection structure according to claim 1, wherein The frame comprises a head tube.

4. A fork connection structure according to claim 3, wherein The head tube is sleeved on the connecting shaft, and the connecting shaft and the head tube are connected through a bowl set assembly.

5. A fork connection structure according to claim 4, wherein The top of the head tube is provided with a second rotating platform.

6. The fork connection structure according to claim 1, wherein The front fork, the connecting piece and the handlebar can rotate relative to the head tube.

7. The fork connection structure according to claim 1, wherein The first rotating platform provides support for the head tube, and the second rotating platform provides support for the connecting piece.

8. A fork connection structure according to claim 7, wherein The cross section of the front fork is half spindle shape.

9. A fork connection structure according to claim 7, wherein The front fork and the head tube are assembled compactly, and have good aerodynamic effect.

10. A bicycle characterized in that, The top of the connecting part is provided with an assembly groove. The assembly groove is glued with an assembly block. The assembly block and the connecting piece are fixedly connected through clamping. The handlebar and the assembly block are fixed through fasteners. The front fork, the assembly block, the connecting piece and the handlebar are provided with cable installation holes penetrating each other. The cable installation holes are provided with openings on both sides of the handlebar and the lower part of the front fork. The handlebar is provided with a mounting plane for mounting the handlebar. The center of the mounting plane is provided with a wire passing hole. The top of the handlebar is provided with a dust cover for covering the mounting plane. One end of the dust cover is provided with a limiting part for limiting. The other end of the dust cover is provided with a mounting part which can be fixed on the handlebar through screws. The connecting shaft comprises an upper connecting shaft and a lower connecting shaft which are threadedly connected with each other. The bowl set assembly comprises an upper bowl piece and a lower bowl piece. The upper bowl piece and the lower bowl piece are respectively located at the top and the bottom of the head tube. The lower connecting shaft is provided with a lower cover at the end. A packing ring is arranged between the upper bowl piece and the upper connecting shaft. The utility model provides a front fork connecting structure of bicycle, which comprises a front fork, a handlebar and a frame.

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