Split type frame structure of retro motorcycle

Abstract

The utility model belongs to the technical field of motorcycle frames, and discloses a split type frame structure of a retro motorcycle, which comprises a front frame assembly, a rear frame assembly, a rear frame assembly, a rear frame assembly and a rear frame assembly, and is characterized in that the front frame assembly comprises two front main frames, two mounting beams, a bracket, a first supporting rod and a second supporting rod; the two mounting beams are connected with the front main frame through first fixing sleeves in a welded mode. The bracket is fixedly connected to the bottom of the mounting beam and the front main frame through bolts to form a quadrilateral supporting structure; the first supporting rod and the second supporting rod are fixedly connected to the inner sides of the two brackets respectively and are fixedly connected through bolts. The brackets are fixedly connected to the bottom of the mounting beam and the front main frame through the bolts respectively to form a stable quadrilateral supporting structure, the first supporting rod and the second supporting rod are fixedly connected to the inner sides of the two brackets respectively and are fixedly connected through the bolts, the stability of the quadrilateral supporting structure is further enhanced, and the service life of the quadrilateral supporting structure is prolonged. And by dispersing stress, the bearing capacity of the whole frame is improved.

Description

Technical Field

[0001] This utility model belongs to the field of motorcycle frame technology, specifically relating to a retro motorcycle split frame structure. Background Technology

[0002] The motorcycle frame is the core supporting structure of a motorcycle, affecting its overall stability and safety, as well as the rider's riding experience and the motorcycle's appearance. With the rise of retro style, retro motorcycles have gradually gained market favor, and the design of retro motorcycle frames has become a key focus for manufacturers.

[0003] Traditional retro motorcycles often employ a unibody design, where the various parts of the frame are welded together to form a single unit. This unibody design results in limited frame space and inconvenient assembly. Some frames utilize a split design, such as the split frame structure disclosed in CN209535341U. In this design, the mounting holes at the upper end of the main tube I are bolted to the mounting holes at the upper end of the frame, and the mounting holes at the other end of the main tube II are bolted to the mounting holes at the lower end of the frame. This design disrupts the overall load-bearing structure of the frame, easily leading to a decrease in overall frame strength. Under external impact, the frame structure is prone to deformation or damage. Summary of the Invention

[0004] To address the aforementioned technical problems, this utility model provides a retro motorcycle split frame structure, which aims to solve to some extent the technical problems in the prior art where the overall load-bearing structure of the frame is broken, easily leading to a decrease in the overall strength of the frame structure, and the frame structure is prone to deformation or damage when subjected to external impact.

[0005] The technical solution of this utility model is: a retro motorcycle split frame structure, including a front frame assembly, which includes two front main frames, two mounting beams, a bracket, a first support rod and a second support rod;

[0006] The two mounting beams are welded to the front main frame via a first fixing sleeve.

[0007] The bracket is fixedly connected to the bottom of the mounting beam and the front main frame by bolts, forming a quadrilateral support structure;

[0008] The first and second support rods are fixedly connected to the inner sides of the two brackets, respectively, and are fixedly connected by bolts.

[0009] Preferably, an inclined rod is welded between the front main frame and the mounting beam.

[0010] Preferably, the front frame assembly further includes multiple reinforcing bars, an upper support beam, a lower support beam, and a fixing seat, with the multiple reinforcing bars fixedly connected between the two front mainframes;

[0011] The upper support beam and the lower support beam are fixedly connected between the front main frame;

[0012] The fixed base is fixedly connected to the back of the upper support beam, and a shock-absorbing device is rotatably connected to the fixed base.

[0013] Preferably, mounting seats are provided at the four corners of the back of the front main frame, and a seat frame is rotatably connected to the mounting seats. The upper end connector of the shock absorption device is in contact with the bottom of the seat frame.

[0014] Preferably, the front frame assembly further includes a first fixing position and a second fixing position, wherein the first fixing position is disposed on the front main frame;

[0015] The second fixing position is fixedly connected to the back of the lower support beam.

[0016] Preferably, it also includes a rear frame assembly, which is rotatably connected to the rear end of the front frame assembly.

[0017] Preferably, the rear frame assembly includes a rear main frame and a lug, and a second fixing sleeve is welded to the first end of the rear main frame. The second fixing sleeve is rotatably connected to the first fixing position via a rotating shaft.

[0018] The support lug is rotatably connected to the bottom of the front end of the rear main frame, with one end rotatably connected to the second fixed position and the other end rotatably connected to the bottom of the shock absorption device.

[0019] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0020] 1. In this application, the brackets are fixedly connected to the bottom of the mounting beam and the front main frame with bolts, forming a stable quadrilateral support structure. This enhances the rigidity and stability of the frame structure, effectively resisting deformation even under external impact and ensuring the driving safety of the retro motorcycle. Furthermore, the first and second support rods are fixedly connected to the inner sides of the two brackets with bolts, further enhancing the stability of the quadrilateral support structure and improving the load-bearing capacity of the entire frame by distributing the stress.

[0021] 2. In this application, the tilt bar is connected to the front main frame and the mounting beam by welding to form a more stable triangular support structure. This structure is very stable mechanically and can effectively enhance the rigidity of the frame structure and improve the frame's torsional and bending resistance.

[0022] 3. In this application, the shock absorption device can effectively absorb the bumps and vibrations during the riding of the retro motorcycle, thereby improving the riding comfort and stability. Attached Figure Description

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

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 This is a left view of the front frame assembly structure of this utility model;

[0026] Figure 3 In this utility model Figure 2 Enlarged view of a portion at point A;

[0027] Figure 4 This is a right view of the front frame assembly structure in this utility model;

[0028] Figure 5 This is a schematic diagram of the rear frame assembly and shock absorption device of this utility model.

[0029] In the attached image:

[0030] 100. Front frame assembly; 101. Front main frame; 102. Mounting beam; 103. First fixing sleeve; 104. Bracket; 105. First support rod; 106. Second support rod; 107. Inclined rod; 108. Reinforcing rod; 109. Mounting seat; 110. Support beam; 111. Fixing seat; 112. First fixing position; 113. Lower support beam; 114. Second fixing position; 200. Rear frame assembly; 201. Rear main frame; 202. Second fixing sleeve; 203. Lug; 300. Seat frame; 400. Shock absorber. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0032] like Figures 1-4As shown, a retro motorcycle split frame structure includes a front frame assembly 100, which includes two front main frames 101, two mounting beams 102, a bracket 104, a first support rod 105, and a second support rod 106. The two mounting beams 102 are welded to the front main frames 101 via a first fixing sleeve 103. The bracket 104 is fixedly connected to the bottom of the mounting beams 102 and the front main frames 101 by bolts, forming a quadrilateral support structure. By fixing the bracket 104 to the bottom of the mounting beams 102 and the front main frames 101 by bolts, a stable quadrilateral support structure is formed, which enhances the rigidity and stability of the frame structure. Even when subjected to external impact, it can effectively resist deformation and ensure the driving safety of the retro motorcycle.

[0033] like Figure 2 , Figure 3 and Figure 4 As shown, the first support rod 105 and the second support rod 106 are respectively fixedly connected to the inner side of the two brackets 104 and are fixedly connected by bolts, which further enhances the stability of the quadrilateral support structure and improves the load-bearing capacity of the entire frame by distributing the force.

[0034] like Figure 2 and Figure 4 As shown, a tilting bar 107 is welded between the front main frame 101 and the mounting beam 102. The tilting bar 107 is connected to the front main frame 101 and the mounting beam 102 by welding, forming a more stable triangular support structure. This structure is very stable mechanically and can effectively enhance the rigidity of the frame structure and improve the frame's torsional and bending resistance.

[0035] like Figure 2 and Figure 4 As shown, the front frame assembly 100 also includes multiple reinforcing bars 108, an upper support beam 110, a lower support beam 113, and a mounting base 111. The multiple reinforcing bars 108 are fixedly connected between the two front main frames 101, and the multiple reinforcing bars 108 enhance the torsional resistance and overall rigidity of the frame structure. The upper support beam 110 and the lower support beam 113 are fixedly connected between the front main frames 101, and the mounting base 111 is fixedly connected to the back of the upper support beam 110. A shock absorber 400 is rotatably connected to the mounting base 111. The shock absorber 400 can effectively absorb bumps and vibrations during riding, improving riding comfort and stability.

[0036] like Figure 1 As shown, mounting bases 109 are provided at the four corners of the back of the front main frame 101. A seat frame 300 is rotatably connected to the mounting base 109, and the upper end connector of the shock absorption device 400 is in contact with the bottom of the seat frame 300.

[0037] like Figure 2 and Figure 4As shown, the front frame assembly 100 also includes a first fixing position 112 and a second fixing position 114. The first fixing position 112 is disposed on the front main frame 101; the second fixing position 114 is fixedly connected to the back of the lower support beam 113, which facilitates the installation and fixing of the rear frame assembly 200.

[0038] like Figure 1 and Figure 5 As shown, a retro motorcycle split frame structure also includes a rear frame assembly 200, which is rotatably connected to the rear end of the front frame assembly 100. The rear frame assembly 200 includes a rear main frame 201 and a lug 203. A second fixing sleeve 202 is welded to the first end of the rear main frame 201, and the second fixing sleeve 202 is rotatably connected to a first fixing position 112 via a pivot. The lug 203 is rotatably connected to the bottom of the first end of the rear main frame 201, with one end rotatably connected to a second fixing position 114 and the other end rotatably connected to the bottom of a shock absorber 400, so that the rear frame assembly 200 can better disperse and absorb impact force when subjected to external impact, protecting the frame structure and the safety of the rider.

[0039] It should be noted that the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A retro motorcycle split frame structure, characterized in that, include: Front frame assembly (100), comprising: Two front mainframes (101); Two mounting beams (102) are welded to the front main frame (101) via a first fixing sleeve (103); The bracket (104) is fixedly connected to the bottom of the mounting beam (102) and the front main frame (101) by bolts to form a quadrilateral support structure; The first support rod (105) and the second support rod (106) are fixedly connected to the inner sides of the two brackets (104) respectively, and are fixedly connected by bolts.

2. The retro motorcycle split frame structure as described in claim 1, characterized in that, An inclined rod (107) is welded between the front main frame (101) and the mounting beam (102).

3. The retro motorcycle split frame structure as described in claim 1, characterized in that, The front frame assembly (100) also includes: Multiple reinforcing bars (108) are fixedly connected between the two front main frames (101); The upper support beam (110) and the lower support beam (113) are fixedly connected between the front main frame (101); The fixed base (111) is fixedly connected to the back of the upper support beam (110), and a shock-absorbing device (400) is rotatably connected thereto.

4. The retro motorcycle split frame structure as described in claim 3, characterized in that, Mounting seats (109) are provided at the four corners of the back of the front main frame (101). A seat frame (300) is rotatably connected to the mounting seat (109). The upper end connector of the shock absorption device (400) is in contact with the bottom of the seat frame (300).

5. The retro motorcycle split frame structure as described in claim 4, characterized in that, The front frame assembly (100) also includes: The first fixed position (112) is set on the front main frame (101); The second fixing position (114) is fixedly connected to the back of the lower support beam (113).

6. The retro motorcycle split frame structure as described in claim 5, characterized in that, It also includes a rear frame assembly (200), which is rotatably connected to the rear end of the front frame assembly (100).

7. The retro motorcycle split frame structure as described in claim 6, characterized in that, The rear frame assembly (200) includes: The rear main frame (201) has a second fixing sleeve (202) welded to its first end. The second fixing sleeve (202) is rotatably connected to the first fixing position (112) through a rotating shaft. The lug (203) is rotatably connected to the bottom of the front end of the rear main frame (201), with one end rotatably connected to the second fixed position (114) and the other end rotatably connected to the bottom of the shock absorber (400).

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