Integrated toothed disc crank for bicycle

Abstract

The utility model discloses a convenient integral type tooth disc crank for bicycle relates to bicycle technical field, including integral type tooth disc and crank, still includes follow -up oiling subassembly, follow -up oiling subassembly includes follow -up push -and -push part and oil supply part, one end of follow -up push -and -push part is connected on the frame, oil supply part is located in tooth disc, and tooth disc and vice tooth piece inside all are seted up with the flow channel for conveying lubricating oil to own tooth part, when the tooth disc rotates, through follow -up push -and -push part periodic extrusion oil supply part, to make the lubricating oil storage in oil supply part through flow channel delivery to tooth disc and vice tooth piece tooth part, the utility model discloses utilize tooth disc rotation process follow -up push -and -push part and the periodic cooperation of oil supply part, realize the automation effect of riding and oiling, need not user manual periodical smearing lubricating oil, especially suitable for long -distance riding or high -frequency use scene, avoid the dry friction problem caused by forgetting oiling.

Description

Technical Field

[0001] This utility model relates to the field of bicycle technology, and in particular to an easy-to-assemble and disassemble one-piece chainring crank for bicycles. Background Technology

[0002] Bicycles, as a type of equipment that combines environmentally friendly transportation, fitness training, and competitive functions, are widely used in daily travel and sports. The stability and durability of their transmission system directly determine the riding experience and the lifespan of the entire bicycle. As the core component of the transmission system, the chainring crank plays a crucial role in transmitting the rider's power to the wheels, and its operating status has a significant impact on the overall performance of the bicycle.

[0003] Traditional chainring cranks rely on manual, periodic application of lubricant, which has significant limitations: Firstly, manual operation makes it difficult to precisely control the amount of lubricant. Too much lubricant can cause it to become sludge-like due to dust, exacerbating wear on the chain and teeth. Too little lubricant cannot form an effective lubricating film, failing to meet the lubrication needs of the components. Secondly, lubricant is continuously consumed during riding. If users forget to add lubricant or fail to do so in time during long-distance riding or high-frequency use, it can cause dry friction between the teeth and chain, significantly shortening the lifespan of the chainring, chain, and other components. Especially in complex road conditions, the timeliness and convenience of manual lubrication are even more difficult to guarantee, seriously affecting riding safety and the reliability of the drivetrain. Based on this, we propose a convenient, one-piece chainring crank for bicycles. Utility Model Content

[0004] To address the shortcomings of the existing technology, this utility model proposes an integrated crankset for bicycles that is easy to assemble and disassemble.

[0005] The technical solution of this utility model is implemented as follows: a conveniently assembled and disassembled one-piece chainring crank for bicycles, including an integrated chainring and crank, with a secondary chainring mounted on the chainring, and also including a follow-up oil supply component. The follow-up oil supply component includes a follow-up pushing part and an oil supply part. One end of the follow-up pushing part is connected to the frame, and the oil supply part is located on the chainring. Both the chainring and the secondary chainring have channels for supplying lubricating oil to their own teeth. When the chainring rotates, the follow-up pushing part periodically squeezes the oil supply part, so that the lubricating oil stored in the oil supply part is delivered to the teeth of the chainring and the secondary chainring through the channels.

[0006] Preferably, the follow-up pushing part includes a connecting strip, one end of which is connected to the frame, and the other end of which is fixed with a pushing block, the pushing block having a pushing slope.

[0007] Preferably, the follow-up pushing part further includes a pressure rod, which is slidably connected to the toothed disc, and a pressure block is fixed at the outer end of the pressure rod. The pressure block is provided with a pressure inclined surface, and the inclination angle of the pressure inclined surface is the same as that of the pushing inclined surface.

[0008] Preferably, the oil supply part includes an oil storage component, the oil storage component includes a cylinder, the cylinder is provided with a sponge column soaked in lubricating oil, a piston plate is provided at one end of the cylinder, the end of the pressure rod is connected to the piston plate, and an oil outlet is provided at the other end of the cylinder.

[0009] Preferably, the crankcase has an oil guiding channel, the oil inlet and the oil outlet of the oil guiding channel are connected, the oil outlet of the oil guiding channel extends to the teeth of the crankcase and the auxiliary teeth, and the diameter of the oil guiding channel gradually decreases from one end near the oil outlet to the other end, forming a gradient flow channel structure.

[0010] Preferably, the cylinder is connected to an oil replenishment pipe, the oil replenishment pipe is connected to the inside of the cylinder, and a valve is installed on the oil replenishment pipe.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. When in use, this utility model, through the design and setting of the follow-up oil replenishment component, utilizes the periodic cooperation between the follow-up pushing part and the oil supply part during the rotation of the chainring to achieve the effect of automatic oil replenishment during riding. There is no need for the user to manually apply lubricating oil regularly. It is especially suitable for long-distance riding or high-frequency use scenarios, avoiding the dry friction problem caused by forgetting to replenish oil, and ensuring the continuous and stable operation of the transmission system.

[0013] 2. The oil supply section uses sponge columns to store lubricating oil, combined with a gradient oil guide channel. This allows for uniform oil output through the compression of the sponge columns, while the small-diameter design of the oil guide channel strictly controls the amount of oil output per cycle, effectively avoiding the problems of sludge accumulation and component contamination caused by excessive oil volume in traditional manual lubrication. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This utility model Figure 1A structural diagram from another angle;

[0017] Figure 3 This utility model Figure 2 A structural diagram from another angle;

[0018] Figure 4 This is a schematic diagram of the structure of the follow-up oil replenishment component of this utility model;

[0019] Figure 5 This is a cross-sectional structural diagram of the oil storage component of this utility model;

[0020] Figure 6 This utility model Figure 1 Enlarged view of point A in the image.

[0021] In the diagram: 1. Chainring; 2. Crank; 3. Secondary chainring; 4. Follow-up oil supply assembly; 41. Connecting bar; 42. Pushing block; 43. Pushing ramp; 44. Pressure rod; 45. Pressure block; 451. Pressure ramp; 46. Oil reservoir; 461. Cylinder; 462. Oil outlet; 463. Sponge column; 464. Piston plate; 47. Oil supply pipe; 48. Oil guide channel. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figures 1-6 As shown, the bicycle crankset is an easy-to-assemble and disassemble integrated crankset, comprising a single crankset 1 and a single crank 2. These components require no additional connecting parts, fundamentally reducing problems such as loose bolts and misaligned parts found in traditional split-type structures. The crankset 1 is made of high-strength aluminum alloy with a wear-resistant coating, capable of withstanding the impact of pedaling and effectively resisting wear caused by chain friction. The crankset 1 is equipped with a secondary chainring 3 and a follow-up lubrication assembly 4. This assembly includes a follow-up pushing part and a lubrication supply part. One end of the follow-up pushing part is connected to the frame but does not affect the rotation of the crankset 1. The lubrication supply part is located on the crankset 1, and both the crankset 1 and the secondary chainring 3 have channels for supplying lubricating oil to their own teeth. When the crankset 1 rotates, the follow-up pushing part periodically squeezes the lubrication supply part, causing the lubricating oil stored in the supply part to be delivered to the teeth of the crankset 1 and the secondary chainring 3 through the channels.

[0024] Among them, see Figure 4As shown, the follow-up pushing part includes a connecting bar 41 and a pressure bar 44. One end of the connecting bar 41 is connected to the frame. The shape of the connecting bar 41 can be designed as needed to avoid obstructing the rotation of the chainring 1. The other end of the connecting bar 41 is fixed with a pushing block 42. The pushing block 42 is provided with a pushing ramp 43. Two pushing ramps 43 are arranged opposite each other to form a symmetrical pushing structure, so that the pushing block 42 can be used to push the pressure bar 44 when the bicycle is moving forward or backward. The pressure bar 44 is slidably connected to the chainring 1, and a pressure block 45 is fixed to the outer end of the pressure bar 44. The pressure block 45 is provided with a pressure ramp 451, and the pressure ramp 451 is also provided opposite each other. There are two inclined surfaces, the pressure inclined surface 451 and the pushing inclined surface 43, with the same inclination angle. In order for the pressure rod 44 to be able to quickly reset after completing the pushing action and return to the initial state before being squeezed, so as to prepare for the next pushing action, when the gear 1 rotates, the pressure rod 44, which is movably connected to the gear 1, will rotate with the gear 1. When the pressure block 45 at the end of the pressure rod 44 rotates to contact the pushing block 42, since the inclination angle of the pushing inclined surface 43 and the pressure inclined surface 451 are matched and they fit together, the pushing block 42 will generate a lateral pushing force on the pressure block 45. Under this force, the pressure rod 44 will move along the sliding direction, thereby realizing the preset pushing action.

[0025] See Figure 5 As shown, the oil supply part includes an oil storage component 46, which includes a cylinder 461. Inside the cylinder 461, there is a sponge column 463 soaked in lubricating oil. The sponge column 463 is made of a highly absorbent porous material, which can not only stably store lubricating oil, but also achieve uniform oil discharge through extrusion, avoiding uncontrolled delivery caused by direct flow of lubricating oil. One end of the cylinder 461 is provided with a piston plate 464, which is tightly fitted to the inside of the cylinder 461 and can slide flexibly along the cylinder wall. Its outer side is fixedly connected to the end of the pressure rod 44. The other end of the cylinder 461 is provided with an oil outlet 462.

[0026] To facilitate regular replenishment of lubricating oil, an oil replenishment pipe 47 is connected to the side wall of the cylinder 461. The internal channel of the oil replenishment pipe 47 is completely connected to the inside of the cylinder 461, and a manual valve is specially installed on the oil replenishment pipe 47. During normal use, the valve is in the closed state to prevent the lubricating oil inside the cylinder 461 from leaking from the oil replenishment pipe 47. When oil replenishment is needed, simply open the valve to inject new lubricating oil into the cylinder 461 through the oil replenishment pipe 47. The operation is convenient and the amount of oil replenished can be controlled.

[0027] See Figure 1 and Figure 6As shown, the gear 1 has an oil guide channel 48 with an oil inlet and an oil outlet 462 connected. The oil outlet of the oil guide channel 48 extends to the teeth of the gear 1 and the auxiliary gear 3. The diameter of the oil guide channel 48 gradually decreases from one end near the oil outlet 462 to the other end, forming a gradient flow channel structure. The small diameter of the oil outlet of the oil guide channel 48 can control the flow rate and flow of lubricating oil and avoid the problem of a large amount of oil being discharged at one time due to the uniform channel diameter.

[0028] As described above, when the pressure block 45 presses the pressure rod 44 to move, the pressure rod 44 pushes the piston plate 464 to move to press the sponge column 463, so that the lubricating oil in the sponge column 463 is squeezed from the oil outlet 462 into the oil guide channel 48, so that during the bicycle movement, a small amount of lubricating oil is periodically squeezed from the oil outlet end of the oil guide channel 48 to the teeth to lubricate the teeth and chain.

[0029] Because the squeezing action of the pressure block 45 continues as the bicycle moves, the entire lubrication process exhibits the characteristic of replenishing oil as the bicycle moves. This means that as long as the bicycle is in motion, lubricating oil can be periodically replenished to the teeth and chain without additional manual operation. This ensures continuous lubrication and avoids the problems of forgetting or missing oil in traditional manual lubrication. Simultaneously, the small-diameter design of the oil outlet of the oil guide channel 48 strictly controls the amount of oil dispensed at one time, effectively preventing excessive oil overflow that could cause component contamination, chain dust accumulation, and other potential problems, thus balancing lubrication effectiveness and cleanliness.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A conveniently assembled and disassembled one-piece chainring and crank for bicycles, comprising an integrated chainring (1) and a crank (2), wherein the chainring (1) is fitted with a secondary chainring (3), characterized in that, It also includes a follow-up oil replenishment component (4), which includes a follow-up pushing part and an oil supply part. One end of the follow-up pushing part is connected to the frame, and the oil supply part is located on the chainring (1). The chainring (1) and the auxiliary toothed tooth (3) are both provided with flow channels for supplying lubricating oil to their own teeth. When the chainring (1) rotates, the follow-up pushing part periodically squeezes the oil supply part so that the lubricating oil stored in the oil supply part is transported to the teeth of the chainring (1) and the auxiliary toothed tooth (3) through the flow channels.

2. The easily detachable one-piece chainring crank for bicycles according to claim 1, characterized in that: The follow-up pushing part includes a connecting strip (41), one end of which is connected to the frame, and the other end of which is fixed with a pushing block (42), and the pushing block (42) is provided with a pushing inclined surface (43).

3. The easily detachable one-piece chainring crank for bicycles according to claim 2, characterized in that: The follow-up pushing part also includes a pressure rod (44), which is slidably connected to the toothed disc (1), and a pressure block (45) is fixed at the outer end of the pressure rod (44). The pressure block (45) is provided with a pressure inclined surface (451), and the inclination angle of the pressure inclined surface (451) is consistent with that of the pushing inclined surface (43).

4. The easily detachable one-piece chainring crank for bicycles according to claim 3, characterized in that: The oil supply part includes an oil storage component (46), which includes a cylinder (461). The cylinder (461) contains a sponge column (463) soaked in lubricating oil. One end of the cylinder (461) is provided with a piston plate (464). The end of the pressure rod (44) is connected to the piston plate (464). The other end of the cylinder (461) is provided with an oil outlet (462).

5. The easily detachable one-piece chainring crank for bicycles according to claim 4, characterized in that: The toothed sprocket (1) has an oil guide channel (48) inside. The oil inlet end and the oil outlet (462) of the oil guide channel (48) are connected. The oil outlet end of the oil guide channel (48) extends to the teeth of the toothed sprocket (1) and the auxiliary toothed plate (3). The diameter of the oil guide channel (48) gradually decreases from one end near the oil outlet (462) to the other end.

6. The easily detachable one-piece chainring crank for bicycles according to claim 4, characterized in that: The cylinder (461) is connected to an oil supply pipe (47), which is connected to the inside of the cylinder (461) and is equipped with a valve.

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