Bicycle frame with increased rigidity

Abstract

The utility model provides a bicycle frame with increased rigidity, and belongs to the technical field of bicycles. The bicycle frame with increased stiffness includes a frame structure. The bicycle frame structure comprises a vertical pipe, a shaft pipe and a reinforcing pipe, the shaft pipe is fixed to the bottom end of the vertical pipe, a front fork supporting piece is fixed to one side of the vertical pipe and one side of the shaft pipe, a rear fork assembly is fixed to the other side of the vertical pipe and the other side of the shaft pipe, and an inclined supporting rod is fixed between the rear fork assembly and the vertical pipe. According to the bicycle rear brake, the condition that a user is soft due to rear brake unloading force can be reduced during riding, and riding can be more stable and comfortable.

Description

Technical Field

[0001] This utility model relates to the field of bicycle technology, and more specifically, to a bicycle frame with increased rigidity. Background Technology

[0002] A bicycle, also known as a pedal bike or cyclist, is typically a small, two-wheeled land vehicle. Riders power it by pedaling, making it a green and environmentally friendly mode of transportation. The bicycle frame is a crucial component of a bicycle.

[0003] Currently, existing bicycle frames lack a diagonal brace between the rear seat fork and the seat tube. This can cause a feeling of weak rear brake application during riding, affecting riding comfort. Therefore, it is necessary to propose a bicycle frame with increased rigidity to solve the above problem. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a bicycle frame with increased rigidity, aiming to improve the problem that existing bicycle frames lack a diagonal brace between the rear seat fork and the seat tube. This makes it easy for riders to experience a soft rear brake when applying the rear brake, affecting the comfort of the ride.

[0005] This utility model is implemented as follows:

[0006] This utility model provides a bicycle frame with increased rigidity, including a frame structure.

[0007] The frame structure includes a seat tube, an axle tube, and a reinforcing tube. The axle tube is fixed to the bottom end of the seat tube. A front fork support is fixed to one side of the seat tube and the axle tube. A rear fork assembly is fixed to the other side of the seat tube and the axle tube. A diagonal brace is fixed between the rear fork assembly and the seat tube.

[0008] In one embodiment of this utility model, a reinforcing rib is fixed on the riser, the reinforcing rib is distributed circumferentially on the surface of the riser, and a first positioning hole is also provided at the upper end of the riser.

[0009] In one embodiment of this utility model, a reinforcing rib is fixed on the riser, the reinforcing rib is distributed circumferentially on the surface of the riser, and a first positioning hole is also provided at the upper end of the riser.

[0010] In one embodiment of this utility model, the fork support includes a head tube, an upper tube fixed between the head tube and the riser tube, a lower tube fixed between the head tube and the axle tube, and a reinforcing tube fixed between the lower tube and the riser tube.

[0011] In one embodiment of the present invention, the rear fork assembly includes a rear upper fork, a rear lower fork, and a connecting tube. The rear upper fork and the rear lower fork are fixed on the connecting tube. The rear upper fork is fixed to the upright tube, the rear lower fork is fixed to the axle tube, and the diagonal brace is fixed between the rear upper fork and the upright tube.

[0012] In one embodiment of this utility model, the cushion cushioning structure includes a fixed plate and a cushion movable rod. The fixed plate is fixed inside the upper end of the upright tube, and the cushion movable rod is slidably connected to the upper end of the upright tube. A cushioning component is fixed between the fixed plate and the cushion movable rod, and a positioning component is also installed between the cushion movable rod and the upright tube.

[0013] In one embodiment of this utility model, the seat cushion movable rod is provided with a second positioning hole corresponding to the first positioning hole, and a sliding sleeve is also fixed on the seat cushion movable rod. The sliding sleeve is provided with a sliding groove that matches the reinforcing rib. The sliding groove is slidably engaged with the reinforcing rib. The sliding sleeve is provided with a third positioning hole corresponding to the second positioning hole.

[0014] In one embodiment of this utility model, the positioning element includes a positioning bolt and a threaded cap. The positioning bolt is inserted into the first positioning hole, the second positioning hole and the third positioning hole, and the threaded cap is threaded to the end of the positioning bolt.

[0015] In one embodiment of this utility model, the buffer includes a spring, and a first connecting post and a second connecting post are fixed to the two ends of the spring, respectively. The first connecting post is fixed to the seat cushion movable rod, and the second connecting post is fixed to the fixing plate.

[0016] The beneficial effects of this utility model are as follows: The bicycle frame with increased rigidity obtained by the above design has a diagonal brace fixed between the rear upper fork and the seat tube. This increases the overall rigidity of the frame when braking with the rear brake, reducing the softness caused by the rear brake force and making the ride more stable. At the same time, a buffer is added to the seat tube. After removing the positioning piece, the seat cushion is installed on the saddle rod. When riding over bumpy roads, the spring can cushion the buttocks, making the ride more comfortable. This reduces the softness caused by the rear brake force and makes the ride more stable. It also reduces the bumps on the buttocks caused by bumpy roads, making the ride more comfortable. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of a bicycle frame structure with increased rigidity provided by an embodiment of the present invention;

[0019] Figure 2 A schematic cross-sectional view of the bicycle frame section with increased stiffness provided for an embodiment of this utility model;

[0020] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;

[0021] Figure 4 An exploded view of the bicycle frame section with increased rigidity provided for an embodiment of this utility model.

[0022] In the diagram: 100 - Frame structure; 110 - Stem tube; 111 - Reinforcing rib; 112 - First positioning hole; 120 - Axle tube; 130 - Front fork support; 131 - Head tube; 132 - Top tube; 133 - Down tube; 140 - Reinforcing tube; 150 - Rear fork assembly; 151 - Rear upper fork; 152 - Rear lower fork; 153 - Connecting tube; 160 - Diagonal brace; 200 - Saddle cushioning structure; 210 - Fixing plate; 220 - Saddle movable rod; 221 - Second positioning hole; 230 - Cushion; 231 - Spring; 232 - First connecting post; 233 - Second connecting post; 240 - Sliding sleeve; 241 - Sliding groove; 242 - Third positioning hole; 250 - Positioning component; 251 - Positioning bolt; 252 - Threaded cap. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] Example

[0025] Please see Figures 1-4This utility model provides a technical solution: a bicycle frame with increased rigidity, including a frame structure 100.

[0026] Please see Figures 1-4 The frame structure 100 includes a seat tube 110, an axle tube 120, and a reinforcing tube 140. The axle tube 120 is fixed to the bottom end of the seat tube 110. A front fork support 130 is fixed to one side of the seat tube 110 and the axle tube 120. A rear fork assembly 150 is fixed to the other side of the seat tube 110 and the axle tube 120. A diagonal brace 160 is fixed between the rear fork assembly 150 and the seat tube 110.

[0027] A reinforcing rib 111 is fixed on the riser tube 110. The reinforcing rib 111 is circumferentially distributed on the surface of the riser tube 110. A first positioning hole 112 is also provided at the upper end of the riser tube 110. Here, the reinforcing rib 111 can increase the overall strength of the riser tube 110 and improve the stability during use. The fork support 130 includes a head tube 131. An upper tube 132 is fixed between the head tube 131 and the riser tube 110. A lower tube 133 is fixed between the head tube 131 and the axle tube 120. A reinforcing tube 140 is fixed between the lower tube 133 and the riser tube 110. Here, the fork support 130 is used for installation and connection with the front wheel.

[0028] The rear fork assembly 150 includes a rear upper fork 151, a rear lower fork 152, and a connecting tube 153. The rear upper fork 151 and the rear lower fork 152 are fixed to the connecting tube 153. The rear upper fork 151 is fixed to the seat tube 110, and the rear lower fork 152 is fixed to the axle tube 120. The diagonal brace 160 is fixed between the rear upper fork 151 and the seat tube 110. The rear fork assembly 150 is provided with two sets for installation and connection with the front wheel. At the same time, the diagonal brace 160 can increase the overall rigidity, making the rear brake more secure and reducing the situation of softness during force dissipation.

[0029] Please see Figures 1-4 The seat cushion cushioning structure 200 includes a fixed plate 210 and a seat cushion movable rod 220. The fixed plate 210 is fixed inside the upper end of the riser 110, and the seat cushion movable rod 220 is slidably connected to the upper end of the riser 110. A cushioning component 230 is fixed between the fixed plate 210 and the seat cushion movable rod 220. A positioning component 250 is also installed between the seat cushion movable rod 220 and the riser 110. The seat cushion is installed on the seat cushion movable rod 220.

[0030] The seat cushion movable rod 220 has a second positioning hole 221 corresponding to the first positioning hole 112. A sliding sleeve 240 is also fixed to the seat cushion movable rod 220. The sliding sleeve 240 has a sliding groove 241 that matches the reinforcing rib 111. The sliding groove 241 is slidably engaged with the reinforcing rib 111. The sliding sleeve 240 also has a third positioning hole 242 corresponding to the second positioning hole 221. The positioning component 250 includes a positioning bolt 251 and a threaded cap 252. The positioning bolt 251 is inserted into the first positioning hole 112, the second positioning hole 221, and the third positioning hole 242. The threaded cap 252 is threaded to the end of the positioning bolt 251. The positioning component 250 is used to position the seat cushion movable rod 220, allowing riders to selectively use or not use seat cushioning, improving flexibility and catering to different user needs.

[0031] The buffer 230 includes a spring 231, with a first connecting post 232 and a second connecting post 233 fixed to both ends of the spring 231. The first connecting post 232 is fixed to the seat cushion movable rod 220, and the second connecting post 233 is fixed to the fixing plate 210. The elasticity of the spring 231 can make the seat cushion movable rod 220 have a certain cushioning effect, thereby improving the comfort of the buttocks during riding and making riding more comfortable.

[0032] Specifically, the working principle of this stiffer bicycle frame is as follows: During use, a diagonal brace 160 is fixed between the rear upper fork 151 and the seat tube 110. This increases the overall stiffness of the frame when braking with the rear brake, reducing the softness caused by the rear brake's force and making the ride more stable. At the same time, a buffer 230 is added to the seat tube 110. After removing the positioning piece 250, the saddle is installed on the saddle rod 220. When riding over bumpy roads, the spring 231 can cushion the buttocks, making the ride more comfortable. This reduces the softness caused by the rear brake's force and makes the ride more stable, while also reducing the bumps on the buttocks caused by bumpy roads, making the ride more comfortable.

[0033] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A bicycle frame with increased stiffness, comprising a frame structure (100), characterized in that, The frame structure (100) includes a seat tube (110), an axle tube (120), and a reinforcing tube (140). The axle tube (120) is fixed to the bottom end of the seat tube (110). A front fork support (130) is fixed to one side of the seat tube (110) and the axle tube (120). A rear fork assembly (150) is fixed to the other side of the seat tube (110) and the axle tube (120). A diagonal brace (160) is fixed between the rear fork assembly (150) and the seat tube (110).

2. The bicycle frame with increased stiffness according to claim 1, characterized in that, A reinforcing rib (111) is fixed on the riser (110), and the reinforcing rib (111) is distributed circumferentially on the surface of the riser (110). A first positioning hole (112) is also provided at the upper end of the riser (110).

3. A bicycle frame with increased stiffness according to claim 1, characterized in that, The fork support (130) includes a head tube (131), an upper tube (132) is fixed between the head tube (131) and the riser tube (110), a lower tube (133) is fixed between the head tube (131) and the axle tube (120), and a reinforcing tube (140) is fixed between the lower tube (133) and the riser tube (110).

4. A bicycle frame with increased stiffness according to claim 1, characterized in that, The rear fork assembly (150) includes a rear upper fork (151), a rear lower fork (152), and a connecting tube (153). The rear upper fork (151) and the rear lower fork (152) are fixed on the connecting tube (153). The rear upper fork (151) is fixed to the riser (110), and the rear lower fork (152) is fixed to the axle tube (120). The diagonal brace (160) is fixed between the rear upper fork (151) and the riser (110).

5. The bicycle frame with increased stiffness according to claim 2, further comprising a seat cushioning structure (200), characterized in that, The cushion cushioning structure (200) includes a fixed plate (210) and a cushion movable rod (220). The fixed plate (210) is fixed inside the upper end of the riser (110). The cushion movable rod (220) is slidably connected to the upper end of the riser (110). A cushioning component (230) is fixed between the fixed plate (210) and the cushion movable rod (220). A positioning component (250) is also installed between the cushion movable rod (220) and the riser (110).

6. A bicycle frame with increased stiffness according to claim 5, characterized in that, The seat cushion movable rod (220) has a second positioning hole (221) corresponding to the first positioning hole (112). A sliding sleeve (240) is also fixed on the seat cushion movable rod (220). The sliding sleeve (240) has a sliding groove (241) that matches the reinforcing rib (111). The sliding groove (241) is slidably engaged with the reinforcing rib (111). The sliding sleeve (240) has a third positioning hole (242) corresponding to the second positioning hole (221).

7. A bicycle frame with increased stiffness according to claim 6, characterized in that, The positioning element (250) includes a positioning bolt (251) and a threaded cap (252). The positioning bolt (251) is inserted into the first positioning hole (112), the second positioning hole (221) and the third positioning hole (242). The threaded cap (252) is threaded to the end of the positioning bolt (251).

8. A bicycle frame with increased stiffness according to claim 5, characterized in that, The buffer (230) includes a spring (231), and a first connecting post (232) and a second connecting post (233) are fixed at both ends of the spring (231). The first connecting post (232) is fixed to the seat cushion movable rod (220), and the second connecting post (233) is fixed to the fixing plate (210).

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