Light bicycle

By installing a lubricant reservoir and sponge block on the bicycle, the chain is lubricated in a timely manner, solving the problem of reduced chain lubrication and achieving a light and effortless riding experience.

CN223949274UActive Publication Date: 2026-02-27GIANT TIANJIN CO LTD
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Patent Information

Application Number
CN202520729736.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-17
Publication Date
2026-02-27
Estimated Expiration
2035-04-17

AI Technical Summary

Technical Problem

Reduced lubrication between the existing bicycle chain and sprocket causes the chain to malfunction and makes riding more strenuous.

Method used

A lightweight frame was designed, incorporating a lubricant reservoir and a sponge block. By operating the handle, the connecting rod is driven to guide the lubricant from the sponge block onto the chain. Combined with the tension sprocket engaging with the chain, timely lubrication of the chain is achieved.

Benefits of technology

This ensures smooth chain operation, making riding easier and less strenuous, and avoids operational problems caused by rust.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223949274U_ABST
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Abstract

The utility model relates to a light bicycle which comprises a light bicycle frame, a front wheel is installed at the front end of the light bicycle frame, a rear wheel is installed at the rear end of the light bicycle frame, a driving chain wheel is installed in the middle of the light bicycle frame, transmission rods are installed on the two sides of the driving chain wheel, pedals are installed at the ends of the transmission rods, and a driven chain wheel is arranged in the center of the rear wheel. The front end of the top of the light frame is provided with a handlebar, the rear end of the top of the light frame is provided with a seat, the light frame is provided with a lubricating oil storage bottle above the chain, a connecting rod is arranged in the lubricating oil storage bottle in a penetrating mode, the top of the connecting rod penetrates out of the lubricating oil storage bottle and is connected with an operating handle, and the bottom of the connecting rod is connected with a sponge block. An oil injection port is formed in the upper end of the side wall of the lubricating oil storage bottle, an oil outlet is formed in the bottom of the lubricating oil storage bottle and filled with a rubber mat in a sealed mode, and a cross-shaped notch is formed in the rubber mat. According to the chain lubricating device, the chain can be lubricated in time, the phenomenon of unsmooth operation caused by corrosion in the using process of the chain is avoided, and riding is easier and more labor-saving.
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Description

Technical Field

[0001] This utility model relates to the technical field of bicycles, and more particularly to a lightweight bicycle. Background Technology

[0002] A bicycle, also known as a pedal bike or cyclist, is a small, two-wheeled land vehicle. When a person gets on the bike, they use their feet to pedal, combined with a chain and sprocket, to move the bike. It is a relatively common, green, and environmentally friendly means of transportation.

[0003] Existing bicycle chains, after prolonged use, experience reduced lubrication between the chain and sprocket, which affects the chain's normal performance, causing it to run poorly and making riding more strenuous for the rider. Utility Model Content

[0004] The present invention aims to address the shortcomings of the prior art by providing a lightweight bicycle.

[0005] To achieve the above objectives, this utility model adopts the following technical solution:

[0006] A lightweight bicycle includes a lightweight frame with a front wheel at the front and a rear wheel at the rear. A drive sprocket is mounted in the center of the bottom of the lightweight frame, with drive rods on both sides of the drive sprocket and pedals at the ends of the drive rods. A driven sprocket is located at the center of the rear wheel. A chain meshes between the drive sprocket and the driven sprocket. A handlebar is located at the front of the top of the lightweight frame, and a seat is located at the rear of the top. A lubricating oil reservoir is mounted above the chain on the lightweight frame. A connecting rod passes through the lubricating oil reservoir, with the top of the connecting rod extending out of the top of the lubricating oil reservoir and connected to a handlebar. A sponge block is connected to the bottom of the connecting rod. An oil filling port is located on the upper side wall of the lubricating oil reservoir, and an oil outlet is located at the bottom of the lubricating oil reservoir. The oil outlet is sealed with a rubber gasket, and the rubber gasket has a cross-shaped cut.

[0007] The lightweight frame has an adjusting support rod on the outer side of the bottom. The adjusting support rod has a corresponding spline hole on the lightweight frame, and a spline rod is inserted into the spline hole. A fixing plate is rotatably installed on the outer end face of the spline rod, and the fixing plate is fastened to the lightweight frame by bolts. The other end of the adjusting support rod is rotatably installed with a tension sprocket through a pin shaft. The tension sprocket meshes with the chain.

[0008] A water bottle is installed on the lightweight frame.

[0009] The beneficial effects of this utility model are: it can lubricate the chain in a timely manner, avoiding the phenomenon of poor operation caused by rust during use, making riding easier and less strenuous. Attached Figure Description

[0010] Fig. 1 This is a schematic diagram of the structure of this utility model;

[0011] Fig. 2 Fig. 1 is a schematic view of a cross cut on a rubber pad at the bottom of a lubricating oil storage bottle;

[0012] Fig. 3 Fig. 2 is a schematic view of a connecting rod connecting a lightened frame and a regulating support rod;

[0013] In the figure: 1 - lightened frame; 2 - front wheel; 3 - rear wheel; 4 - driving sprocket; 5 - transmission rod; 6 - pedal; 7 - driven sprocket; 8 - chain; 9 - handlebar; 10 - seat; 11 - lubricating oil storage bottle; 12 - connecting rod; 13 - operating handle; 14 - sponge block; 15 - oil filling port; 16 - rubber pad; 17 - cross cut; 18 - regulating support rod; 19 - spline rod; 20 - fixing plate; 21 - bolt; 22 - pin; 23 - tension sprocket; 24 - drinking bottle; 25 - strap;

[0014] The utility model will be described below in detail with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0015] The principles and features of the utility model will be described below in combination with the accompanying drawings and the embodiments. The embodiments are only used for explaining the utility model and are not used for limiting the scope of the utility model. The utility model will be described in more detail below in combination with the accompanying drawings by way of example. The advantages and features of the utility model will be more apparent according to the following description. It should be noted that the accompanying drawings are all in a very simplified form and all use non-precise proportions, only for the purpose of conveniently and clearly assisting the description of the embodiments of the utility model.

[0016] It should be noted that when a component is referred to as being "fixed" to another component, it can be directly on the other component or there can be intervening components. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or there can be intervening components. When a component is referred to as being "disposed" on another component, it can be directly on the other component or there can be intervening components. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0017] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0018] The utility model will be further described below in combination with the accompanying drawings and embodiments:

[0019] A type of lightweight bicycle, such as Figs. 1 to 3 As shown, the components include a lightweight frame 1, front wheel 2, rear wheel 3, drive sprocket 4, drive rod 5, pedals 6, driven sprocket 7, chain 8, handlebars 9, seat 10, lubricant reservoir 11, connecting rod 12, operating handle 13, sponge block 14, oil filler 15, rubber pad 16, cross-cut 17, adjusting support rod 18, spline rod 19, fixing plate 20, bolt 21, pin 22, tension sprocket 23, water bottle 24, and strap 25.

[0020] The lightweight frame 1 is the supporting component of the entire bicycle. It is made of lightweight materials, such as aluminum alloy, which reduces weight while maintaining strength.

[0021] The lightweight frame 1 has a front wheel 2 installed at the front end and a rear wheel 3 installed at the rear end. A drive sprocket 4 is installed in the middle of the bottom of the lightweight frame 1. Drive rods 5 are installed on both sides of the drive sprocket 4. Pedals 6 are installed at the ends of the drive rods 5. A driven sprocket 7 is located in the center of the rear wheel 3. A chain 8 meshes between the drive sprocket 4 and the driven sprocket 7. A handlebar 9 is located at the front of the top of the lightweight frame 1 and a seat 10 is located at the rear of the top.

[0022] The foot pedal 6 has anti-slip texture, which can prevent slipping.

[0023] A bell is installed on handlebar 9 to enhance safety warning function.

[0024] The lightweight frame 1 has a lubricating oil reservoir 11 installed above the chain 8. A connecting rod 12 is inserted inside the lubricating oil reservoir 11. The top of the connecting rod 12 extends out of the top of the lubricating oil reservoir 11 and is connected to an operating handle 13. A sponge block 14 is connected to the bottom of the connecting rod 12. An oil filling port 15 is provided at the upper end of the side wall of the lubricating oil reservoir 11. An oil outlet is provided at the bottom of the lubricating oil reservoir 11 and a rubber gasket 16 is sealed and filled inside the oil outlet. A cross cut 17 is provided on the rubber gasket 16.

[0025] The lubricating oil reservoir 11 is mounted on the lightweight frame 1 by straps 25.

[0026] The strap 25 has Velcro at both ends and is fixed by Velcro.

[0027] The cross-cut 17 of the rubber pad 16 will not leak, thus serving as a seal. When the chain 8 needs to be lubricated, the operating handle 13 can be used to drive the connecting rod 12 down, allowing the sponge block 14 to pass through the cross-cut 17. The sponge block 14 then guides the lubricating oil inside the lubricating oil reservoir 11 onto the chain 8, providing lubrication and making the chain 8 run more smoothly and the ride more convenient for the rider.

[0028] The bottom outer side of the light-weighted frame 1 is provided with an adjusting support rod 18, the adjusting support rod 18 is provided with a spline hole and a spline rod 19 is inserted in the spline hole, the outer end surface of the spline rod 19 is rotatably installed with a fixing plate 20, the fixing plate 20 is fastened on the light-weighted frame 1 through a bolt 21, the other end of the adjusting support rod 18 is rotatably installed with a tensioning sprocket 23 through a pin shaft 22, the tensioning sprocket 23 is engaged with the chain 8.

[0029] The angle of the tensioning sprocket 23 can be adjusted according to the requirement, so that the phenomenon that the chain 8 is loose and the riding is difficult can be avoided.

[0030] The light-weighted frame 1 is installed with a drinking bottle 24.

[0031] The utility model is described above in combination with the drawings, obviously, the specific implementation of the utility model is not limited by the above-mentioned mode, as long as various improvements are adopted by using the method concept and the technical scheme of the utility model or directly applied to other occasions without improvement, all are within the protection scope of the utility model.

Claims

1. A light and sporty bicycle, characterized in that, The utility model provides a light-weighted frame (1) is installed with front wheel (2) and rear wheel (3) at the front end and rear end, is installed with driving sprocket (4) in the middle of bottom, is installed with transmission rod (5) on both sides of driving sprocket (4), is installed with footrest (6) at the end of transmission rod (5), is equipped with driven sprocket (7) in the center of rear wheel (3), and chain (8) is engaged between driving sprocket (4) and driven sprocket (7), is equipped with handlebar (9) at the top front end of light-weighted frame (1) and is equipped with car seat (10) at the top rear end, and light-weighted frame (1) is installed with lubricating oil storage bottle (11) above chain (8), is equipped with connecting rod (12) in lubricating oil storage bottle (11), and connecting rod (12) top passes out lubricating oil storage bottle (11) top and is connected with operating handle (13), and connecting rod (12) bottom is connected with sponge block (14), and lubricating oil storage bottle (11) side wall upper end is equipped with oil inlet (15), and lubricating oil storage bottle (11) bottom is equipped with oil outlet and is filled with rubber pad (16) in the sealed filling of oil outlet, and is equipped with cross cut (17) on rubber pad (16).

2. A light and fast type bicycle according to claim 1, characterized in that, Light-weighted frame (1) bottom outside is equipped with adjusting support rod (18), adjusting support rod (18) is equipped with spline hole on light-weighted frame (1) upper surface and is inserted with spline rod (19) in spline hole, spline rod (19) outer end surface is rotatably installed with fixed plate (20) and fixed plate (20) is fastened on light-weighted frame (1) through bolt (21), and adjusting support rod (18) other end is rotatably installed with tensioning sprocket (23) through pin shaft (22), and tensioning sprocket (23) is engaged with chain (8).

3. A light and fast type bicycle according to claim 2, characterized in that, Light-weighted frame (1) is installed with drinking bottle (24).

4. A light and fast bicycle according to claim 3, characterized in that Lubricating oil storage bottle (11) is installed on light-weighted frame (1) through bandage (25).

5. A light and fast type bicycle according to claim 4, characterized in that, Bandage (25) both ends are equipped with magic tape and are connected and fixed through magic tape.

6. A light and fast type bicycle according to claim 5, characterized in that, Footrest (6) is equipped with antiskid line.

7. A light-weight bicycle according to claim 6, characterized in that Handlebar (9) is equipped with bell.