Bicycle rim structure

Abstract

The utility model discloses a bicycle wheel rim structure, which relates to the technical field of bicycle wheels and comprises a wheel rim main body, an outer groove and a main air duct, the outer groove and the main air duct are arranged on the wheel rim main body, a clamping strip is arranged on the surface of the wheel rim main body, a vent hole is arranged inside the clamping strip and communicated with the inside of the main air duct, and an air leakage hole is further arranged inside the wheel rim main body. And an air guide pipe is fixedly connected into the air leakage hole. According to the bicycle rim structure provided by the utility model, the clamping strip, the air guide pipe and the drainage cover are arranged, in the long-time riding process, external air extrudes the dust-proof cover, so that the dust-proof cover enters the vent hole, after the external air enters the air guide pipe in the air drainage hole through the auxiliary air duct, the brake disc main body is cooled through the drainage cover, and the service life of the brake disc main body is prolonged. When the bicycle is not ridden, the main air duct is isolated from the external environment, and compared with a traditional mode, the heat dissipation requirement is met, meanwhile, the external environment can be better isolated when the bicycle is idle, and the safety of a user is protected.

Description

Technical Field

[0001] The utility model relates to the technical field of bicycle wheels, in particular to a bicycle wheel rim structure. Background Art

[0002] As people's awareness of environmental protection improves, more and more people choose low-carbon travel methods, and bicycles, as a more popular low-carbon means of transportation, are deeply loved.

[0003] Bicycle rims are made of various materials, among which carbon fiber is widely used in the production of high-end bicycles due to its light weight. The existing Chinese patent with authorization announcement number CN216184195U discloses a new carbon fiber rim structure and a bicycle wheel, which includes two side walls, a connecting arm and a support arm connecting the opposite sides of the two side walls, and a foaming material is filled in the hollow. The utility model has a simple structure, can enhance the strength of the rim while meeting the requirement of lightweight, and does not affect the installation of narrow tires.

[0004] Carbon fiber composite materials are often used in lightweight bicycles due to their light weight and strong structure. Due to the need to reduce costs and minimize the weight of bicycles, most existing bicycle carbon fiber rims adopt a hollow ring structure. In order to reduce wear, they are generally provided with outer grooves and soft narrow tires are installed. However, in order to ensure safe use, the carbon fiber rims are hardened. The structural strength of the rims after hardening is greatly improved, but the ductility is affected to a certain extent. When riding on a long distance and a large slope, the friction between the rim and the brake disc heats up a large power, and the surface temperature of the rim rises. In order to avoid the softening of the rim, it is usually punched to increase heat dissipation by promoting air circulation. However, these heat dissipation holes are always exposed to the outside world. During idleness, dust and muddy water in the air are easily introduced, which increases the weight of the vehicle body. Dust and muddy water remaining inside the rim for a long time may even corrode the rim and affect riding safety. Utility Model Content

[0005] In view of the above problems existing in the prior art, the present utility model is proposed.

[0006] Therefore, the purpose of the utility model is to provide a bicycle wheel rim structure, which solves the problem that the heat dissipation holes in the traditional wheel rim are always exposed to the outside world. During the idle process, dust and mud in the air are easily introduced, which increases the weight of the vehicle body. The dust and mud remain inside the rim for a long time and may even corrode the rim, affecting riding safety.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A bicycle rim structure comprises a rim body, an outer narrow tire and reinforced spokes installed on the rim body, an outer groove and a main air duct arranged on the rim body, and a brake disc body installed on the rim body, a clamping strip is arranged on the surface of the rim body, an air vent is arranged inside the clamping strip, the air vent runs through the rim body and the clamping strip as a whole, the air vent is communicated with the inside of the main air duct, a dust cover is arranged inside the air vent, a guide cover is fixedly connected to one side of the dust cover, a secondary air duct is arranged inside the guide cover, an air leakage hole is also arranged inside the rim body, the air leakage hole is communicated with the inside of the main air duct, an air duct is fixedly connected to the inside of the air leakage hole, the air duct is connected to the brake disc body through the air leakage cover, the dust cover is truncated, the dust cover blocks the air vent when the device is not in use, the secondary air duct is arranged inside the main air duct, and the air leakage cover can disperse and release the air transported by the air duct to the surface of the brake disc body.

[0009] Preferably, a slot is provided inside the clamping strip, the slot is matched with the wheel rim body, the clamping strip is connected to the wheel rim body via the slot, and the vent holes and the air vent holes are distributed in a ring array around the brake disc body.

[0010] Preferably, the outer groove is opened on the outer side of the rim body, the outer narrow tire is adapted to the outer groove, the outer narrow tire is fixedly installed on the inner side of the outer groove, the clamping strip is connected to the brake disc body through the reinforcing spokes, the reinforcing spokes are fixedly installed on the outer side of the brake disc body, and the reinforcing spokes are parallel to each other and symmetrically arranged.

[0011] Furthermore, a dust filter ring is fixedly connected to the inside of the main air duct, sleeves are fixedly connected to both sides of the dust filter ring, the sleeve is a hollow structure, a spring is provided inside the sleeve, both ends of the spring are equipped with push bolts, and the push bolts are movably connected to the inside of the sleeve.

[0012] Preferably, the wheel rim body and the reinforcing spokes are an integrally formed structure, and the air vents have angle differences with the wheel rim body and the clamping strips, so that more air can enter the air vents with the angle difference.

[0013] In the above technical scheme, the utility model has the following technical effects and advantages:

[0014] 1. The utility model is provided with a clamping strip, an air duct and a leakage cover. When in use, the wheel rim body rotates during riding. During a long period of riding, the external air squeezes the dust cover, so that the dust cover enters the vent hole. After the external air enters the air duct in the leakage hole through the secondary air duct, the brake disc body is cooled and cooled through the leakage cover. When not riding, the main air duct is isolated from the external environment. Compared with the traditional method, while meeting the heat dissipation demand, it can better isolate the external environment when idle to protect the safety of users.

[0015] 2. The utility model is provided with an outer narrow tire, reinforced spokes and a clamping strip. When in use, the reinforced spokes connected to the rim body through the clamping strip can increase the overall structural strength of the device and effectively reduce the probability of deformation of the rim body when the device is idle. The outer narrow tire lowering device installed in the outer groove on the rim body directly contacts the ground, ensuring that the appearance of the device is not easily changed.

[0016] 3. The utility model is provided with a spring, a top bolt and a deflector cover. When the dust cover is compressed by air during use, the extension length of the spring is reduced, and the deflector cover and the sleeve are close to each other. When riding gradually stops, the external air pressure weakens, and the spring resets the dust cover through the top bolt, which makes it more reliable and convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0019] Figure 2 This is a structural diagram related to the vent hole and the air leakage hole of the utility model;

[0020] Figure 3 It is a cross-sectional view of the utility model;

[0021] Figure 4 This is a structural diagram of the clamping strip and sleeve of the utility model;

[0022] Figure 5 The utility model is an exploded view of the dust cover and the top bolt related structure.

[0023] Description of reference numerals:

[0024] 1. Wheel rim body; 2. Outer narrow tire; 3. Reinforced spokes; 4. Outer groove; 5. Main air duct; 6. Clamp strip; 7. Clamp groove; 8. Air vent; 9. Dust cover; 10. Air guide cover; 11. Auxiliary air duct; 12. Air bleed hole; 13. Air guide pipe; 14. Air bleed cover; 15. Brake disc body; 16. Dust filter ring; 17. Sleeve; 18. Spring; 19. Top bolt. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0026] The utility model embodiment discloses a bicycle wheel rim structure.

[0027] The utility model provides Figure 1 , 2 The bicycle rim structure shown in , 3 and 4 includes a rim body 1, an outer narrow tire 2 and a reinforced spoke 3 installed on the rim body 1, an outer groove 4 and a main air duct 5 opened on the rim body 1, and a brake disc body 15 is installed on the rim body 1, a clamping strip 6 is provided on the surface of the rim body 1, and an air vent 8 is opened inside the clamping strip 6. The air vent 8 runs through the rim body 1 and the clamping strip 6 as a whole, and the air vent 8 is communicated with the inside of the main air duct 5. A dust cover 9 is provided inside the air cover 8, and a guide cover 10 is fixedly connected to one side of the dust cover 9, and a secondary air duct 11 is opened inside the guide cover 10. An air leakage hole 12 is also opened inside the rim body 1, and the air leakage hole 12 is communicated with the inside of the main air duct 5. An air guide pipe 13 is fixedly connected inside the air leakage hole 12, and the air guide pipe 13 is connected to the brake disc body 15 through a air leakage cover 14.

[0028] When in use, the wheel rim body 1 rotates during riding. During long-term riding, the outside air will continuously squeeze the dust cover 9. When the air inside the main air duct 5 is reduced, the dust cover 9 enters the vent 8 due to the pressure difference, so that the vent 8 is connected to the external environment. The outside air will pass through the secondary air duct 11 on the guide cover 10, and after circulating in the main air duct 5, it will enter the air duct 13 in the bleed hole 12 for transportation, and then the air will be dispersed and released through the bleed cover 14 to dissipate heat and cool the surface of the brake disc body 15. When not riding, the dust cover 9 will isolate the main air duct 5 from the external environment. Compared with the traditional method, while meeting the heat dissipation requirements, it can better isolate the external environment when idle to protect the safety of users.

[0029] In order to ensure heat dissipation, Figure 1 , 3 As shown in FIG. 4 , a slot 7 is provided inside the clamping strip 6 , and the slot 7 is adapted to the wheel rim body 1 . The clamping strip 6 is connected to the wheel rim body 1 through the slot 7 . The vent holes 8 and the air vent holes 12 are distributed in a ring array around the brake disc body 15 .

[0030] When in use, the clamping strip 6 is clamped with the outer narrow tire 2 through the clamping groove 7, and is fixed to the rim body 1 through the internal structure of the vent hole 8, thereby increasing the overall structural strength of the device and making disassembly and replacement more convenient. The distribution of the annular array can ensure the entry of air to the greatest extent, improve the heat dissipation effect of the brake disc body 15, and always keep the reinforced spoke 3 and the rim body 1 fixedly connected. The clamping strip 6 is connected to the reinforced spoke 3 and the rim body 1 by clamping.

[0031] To increase the strength, Figure 1As shown, the outer groove 4 is opened on the outer side of the rim body 1, the outer narrow tire 2 and the outer groove 4 are adapted to each other, the outer narrow tire 2 is fixedly installed on the inner side of the outer groove 4, the clamping strip 6 is connected to the brake disc body 15 through the reinforcing spoke 3, the reinforcing spoke 3 is fixedly installed on the outer side of the brake disc body 15, the reinforcing spokes 3 are parallel to each other and symmetrically arranged, the rim body 1 and the reinforcing spokes 3 are an integrally formed structure, and there is an angle difference between the vent hole 8 and the rim body 1 and the clamping strip 6.

[0032] When in use, the reinforced spokes 3 connected to the rim body 1 through the clamping strips 6 can increase the overall structural strength of the device and effectively reduce the probability of deformation of the rim body 1 when the device is idle. The outer narrow tire 2 installed in the outer groove 4 on the rim body 1 reduces the direct contact between the device and the ground, ensuring that the appearance of the device is not easily changed.

[0033] Finally, for ease of use, such as Figure 4 and 5 As shown, a dust filter ring 16 is fixedly connected to the inside of the main air duct 5, and sleeves 17 are fixedly connected to both sides of the dust filter ring 16. The sleeve 17 is a hollow structure, and a spring 18 is provided inside the sleeve 17. Both ends of the spring 18 are installed with push bolts 19, and the push bolts 19 are movably connected to the inside of the sleeve 17.

[0034] When in use, after the dust cover 9 is compressed by air, the extension length of the spring 18 is reduced, the deflector 10 and the sleeve 17 approach each other, and when riding gradually stops, the external air pressure weakens, and the spring 18 resets the dust cover 9 through the push bolt 19, making it more reliable and convenient to use.

[0035] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A bicycle wheel rim structure, comprising a wheel rim body (1), an outer narrow tire (2) and reinforced spokes (3) mounted on the wheel rim body (1), an outer groove (4) and a main air duct (5) provided on the wheel rim body (1), and a brake disc body (15) mounted on the wheel rim body (1), characterized in that: A clamping strip (6) is provided on the surface of the wheel rim body (1), and a vent hole (8) is provided inside the clamping strip (6). The vent hole (8) runs through the wheel rim body (1) and the clamping strip (6) as a whole, and the vent hole (8) is communicated with the inside of the main air duct (5). A dust cover (9) is provided inside the vent hole (8), and a guide cover (10) is fixedly connected to one side of the dust cover (9). A secondary air duct (11) is provided inside the guide cover (10). An air leakage hole (12) is also provided inside the wheel rim body (1), and the air leakage hole (12) is communicated with the inside of the main air duct (5). An air guide pipe (13) is fixedly connected to the inside of the air leakage hole (12), and the air guide pipe (13) is connected to the brake disc body (15) via the air leakage cover (14).

2. The bicycle rim structure according to claim 1, characterized in that: A slot (7) is provided inside the clamping strip (6), the slot (7) and the wheel rim body (1) are adapted to each other, the clamping strip (6) is connected to the wheel rim body (1) via the slot (7), and the vent holes (8) and the air leakage holes (12) are distributed in a ring array around the brake disc body (15).

3. The bicycle rim structure according to claim 1, characterized in that: The outer groove (4) is formed on the outer side of the wheel rim body (1); the outer narrow tire (2) and the outer groove (4) are adapted to each other; the outer narrow tire (2) is fixedly mounted on the inner side of the outer groove (4); the clamping strip (6) is connected to the brake disc body (15) via the reinforcing spokes (3); the reinforcing spokes (3) are fixedly mounted on the outer side of the brake disc body (15); and the reinforcing spokes (3) are arranged in parallel and symmetrically.

4. The bicycle rim structure according to claim 1, characterized in that: A dust filter ring (16) is fixedly connected to the interior of the main air duct (5), sleeves (17) are fixedly connected to both sides of the dust filter ring (16), the sleeve (17) is a hollow structure, a spring (18) is provided inside the sleeve (17), both ends of the spring (18) are equipped with push bolts (19), and the push bolts (19) are movably connected to the interior of the sleeve (17).

5. The bicycle rim structure according to claim 1, characterized in that: The wheel rim body (1) and the reinforcing spokes (3) are an integrally formed structure, and an angle difference exists between the vent hole (8) and the wheel rim body (1) and the clamping strip (6).

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