Carbon fiber bicycle high-temperature-resistant rim

Abstract

The utility model relates to the technical field of bicycles, in particular to a carbon fiber bicycle high-temperature-resistant wheel rim which comprises a wheel rim body, a plurality of baffles are fixedly arranged in the wheel rim body, an annular cavity in the wheel rim body is equally divided into a plurality of cavities by the baffles, a bearing is arranged on the inner side of the wheel rim body, and the inner side of the wheel rim body is provided with a bearing. According to the carbon fiber bicycle high-temperature-resistant wheel rim, air can be driven to flow through the cooling circular ring through the hollow spokes through contact between the wheel rim body and the ground, the cooling circular ring and the brake pad are cooled, the high-temperature-resistant performance is better, air circulates in the hollow spokes, the wheel rim body and the cooling circular ring, and the service life of the wheel rim is prolonged. The inside of the rim body and the like can be kept clean, and the service life is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of bicycle technology, and in particular to a carbon fiber bicycle high-temperature resistant wheel rim. Background Technology

[0002] Currently, the trend of using carbon fiber in high-end bicycles is becoming increasingly apparent. During high-speed operation, the rotating bearings of a bicycle can heat up due to rapid rotation. If the heat is too high and the temperature rises too quickly, the rim can easily lose strength due to high temperature. When going downhill, we usually brake, and the brake pads overheat due to friction with the brake pads, which can also affect the bearing temperature. An existing high-temperature resistant carbon fiber bicycle rim, with application number CN201920737964.2, includes a rim body. Its characteristic is that the rim body has a circular structure with an annular sealed cavity… This solves the problem of reduced product strength caused by heat rise during rim rotation and friction between the brake pads and brake pads, and has broad market prospects, making it suitable for promotion. However, the vent of this rim is located on the rim body, connecting to the outside, which can easily allow dust and other contaminants to enter the rim and the interior of the annulus, affecting its service life. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies where the air outlet is located on the wheel rim body and connected to the outside, making it easy for dust and other contaminants to enter the wheel rim and the inside of the ring, thus affecting the service life. The invention proposes a carbon fiber bicycle high-temperature resistant wheel rim.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] Design a high-temperature resistant carbon fiber bicycle rim, comprising a rim body, wherein several baffles are fixedly installed inside the rim body, and the baffles divide the annular cavity inside the rim body into several equal cavities; a bearing is provided on the inner side of the rim body, and a cooling ring is fixedly installed on the outer wall of the bearing; a brake pad is fixedly installed on the side of the cooling ring; several U-shaped holes, the same number as the number of baffles, are opened inside the cooling ring; several spoke seats, corresponding to the U-shaped holes, are integrally formed on the outer wall of the cooling ring; and a pair of internally fixed... The wheel has a through-hole with a one-way valve, and hollow spokes are fixedly inserted into a pair of through-holes. The ends of several pairs of hollow spokes away from the spoke seats are fixedly connected to the wheel rim body and extend into several cavities within the wheel rim body. An elastic air storage structure is fixedly provided on one side of several spoke seats. An overflow hole is opened on one side of several spoke seats, connecting the elastic air storage structure and the through-hole near the elastic air storage structure. The one-way valves in each spoke seat, near and away from the elastic air storage structure, respectively guide air from one side of the hollow spokes to one side of the U-shaped hole and from one side of the U-shaped hole to one side of the hollow spokes.

[0006] Preferably, the number of spoke seats, the number of baffles, and the number of spoke seats are all even numbers of six to sixteen.

[0007] Preferably, the inner wall of the cooling ring is provided with a plurality of enlarged annular grooves corresponding to the U-shaped holes, and each enlarged annular groove is vertically penetrated by the U-shaped holes.

[0008] Preferably, the elastic air storage structure includes an air storage box, a piston, and a spring. An air storage box with an overflow hole is fixedly provided on one side of the spoke seat. A piston and a spring that cooperate with it are slidably provided inside the air storage box. The left and right ends of the spring respectively abut against the piston and the inner wall of the air storage box on the side away from the spoke seat.

[0009] Preferably, the outer walls of both hollow spokes are integrally formed with heat dissipation fins, and a plurality of heat dissipation fins are arranged in a circumferential array.

[0010] Preferably, the two ends of the plurality of heat dissipation fins are respectively fixedly connected to the wheel rim body and the spoke seat.

[0011] Preferably, the two heat dissipation fins located on the outer walls of the two hollow spokes close to each other are aligned at their close end faces and integrally formed and connected.

[0012] The present invention proposes a carbon fiber high-temperature resistant bicycle rim, which has the following advantages: the carbon fiber high-temperature resistant bicycle rim can not only drive air through the contact between the rim body and the ground to flow through the hollow spokes and the cooling ring, thereby cooling the cooling ring and brake pads and giving them better high-temperature resistance, but also the air circulates within the hollow spokes, the rim body, and the cooling ring without contacting or exchanging with the outside air, thus keeping the inside of the rim body and other components clean and improving its service life. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a carbon fiber bicycle high-temperature resistant wheel rim proposed in this utility model;

[0014] Figure 2 This is an enlarged view of area A of a carbon fiber high-temperature resistant bicycle rim proposed in this utility model;

[0015] Figure 3 This is a schematic diagram of a cooling ring structure for a high-temperature resistant carbon fiber bicycle rim proposed in this utility model.

[0016] Figure 4 This is a cross-sectional structural diagram of a carbon fiber bicycle high-temperature resistant wheel rim proposed in this utility model;

[0017] Figure 5 This is a schematic diagram of the baffle structure of a carbon fiber bicycle high-temperature resistant wheel rim proposed in this utility model.

[0018] In the diagram: 1. Wheel rim body; 2. Air reservoir; 3. Spoke seat; 4. Hollow spoke; 5. Cooling ring; 6. Heat dissipation fins; 7. Baffle; 8. U-shaped hole; 9. Enlarged annular groove; 10. Through hole; 11. One-way valve; 12. Overflow hole; 13. Piston; 14. Spring; 15. Bearing; 16. Brake pad. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Reference Figure 1-5 A high-temperature resistant carbon fiber bicycle rim includes a rim body 1. Several baffles 7 are fixedly installed inside the rim body 1, dividing the annular cavity inside the rim body 1 into several equal cavities. A bearing 15 is provided on the inner side of the rim body 1, and a cooling ring 5 is fixedly installed on the outer wall of the bearing 15. A brake pad 16 is fixedly installed on the side of the cooling ring 5. Several U-shaped holes 8, the same number as the number of baffles 7, are opened inside the cooling ring 5. Several spoke seats 3, corresponding to the U-shaped holes 8, are integrally formed on the outer wall of the cooling ring 5. Each of the spoke seats 3, away from the outer wall of the cooling ring 5, has a pair of internally fixed unidirectional... The valve 11 has a through hole 10, and a pair of through holes 10 are respectively fixedly inserted into each hollow spoke 4. The ends of several pairs of hollow spokes 4 away from the spoke seat 3 are fixedly connected to the wheel rim body 1 and extend into several cavities in the wheel rim body 1. An elastic air storage structure is fixedly provided on one side of several spoke seats 3. An overflow hole 12 is opened on one side of several spoke seats 3, which connects the elastic air storage structure and the through hole 10 near the elastic air storage structure. The one-way valve 11 in each spoke seat 3, near and away from the elastic air storage structure, respectively introduces air from one side of the hollow spoke 4 into one side of the U-shaped hole 8 and from one side of the U-shaped hole 8 into one side of the hollow spoke 4.

[0021] Reference Figure 1-5 To maintain symmetry and force balance, the number of spoke seats 3, the number of baffles 7, and the number of spoke seats 3 are all even numbers of six to sixteen.

[0022] Reference Figure 1-5 In order to increase the contact between air and cooling ring 5, several enlarged annular grooves 9 corresponding to U-shaped holes 8 are provided on the inner wall of cooling ring 5, and each enlarged annular groove 9 is vertically penetrated by U-shaped holes 8.

[0023] Reference Figure 1-5In order to contain the air when the air in the cavity is squeezed out through the hollow spokes 4 under pressure on the wheel rim body 1, and to discharge the air when the cavity is far away from the ground and return to the cavity through the U-shaped hole 8 and the hollow spokes 4, the elastic air storage structure includes an air storage box 2, a piston 13, and a spring 14. An air storage box 2 connected to an overflow hole 12 is fixedly provided on one side of the spoke seat 3. The piston 13 and the spring 14 are slidably provided inside the air storage box 2. The left and right ends of the spring 14 respectively abut against the piston 13 and the inner wall of the air storage box 2 on the side away from the spoke seat 3.

[0024] Reference Figure 1-5 In order to increase the heat dissipation area and enhance the strength of the hollow spokes 4, the outer walls of both hollow spokes 4 are integrally formed with heat dissipation fins 6, and several heat dissipation fins 6 are arranged in a circumferential array.

[0025] Reference Figure 1-5 To increase the stability of the connection between the two hollow spokes 4 and the wheel rim body 1 and spoke seat 3, several heat dissipation fins 6 are fixedly connected to the wheel rim body 1 and spoke seat 3 at both ends.

[0026] Reference Figure 1-5 In order to enhance the strength of the two hollow spokes 4 by connecting a pair of hollow spokes 4, two heat dissipation fins 6 located on the outer walls of the two hollow spokes 4 close to each other are aligned at their end faces and integrally connected.

[0027] Working principle: When riding, the wheel rim body 1 contacts the ground and is compressed, forcing air from the cavity near the ground into the air reservoir 2 through the hollow spokes 4, one-way valve 11, and through hole 10 on the side near the air reservoir 2, and pushing the piston 13 to the right. As the wheel rim body 1 rolls away from the ground and returns to its original position, the piston 13 moves to the left under the action of the spring 14, forcing air through the overflow hole 12, through hole 10 near the air reservoir 2, U-shaped hole 8, enlarged annular groove 9, U-shaped hole 8, one-way valve 11, and away from the air reservoir. 2. One side through hole 10 and hollow spoke 4 return to the cavity. During this process, the air first enters the air storage box 2 through the hollow spoke 4, and releases excess heat in the air storage box 2 to become cold air. Then, it passes through the U-shaped hole 8 and the enlarged annular groove 9 to carry away the heat transferred from the brake pad 16 on the cooling ring 5 that is tightly connected to the brake pad 16, and cools the brake pad 16. The cooling ring 5 prevents it from overheating. The hot air that carries away the heat returns to the cavity through the hollow spoke 4 and dissipates the heat into the air through the hollow spoke 4.

[0028] This carbon fiber bicycle high-temperature resistant rim not only drives air through the contact between the rim body 1 and the ground, but also cools the cooling ring 5 and brake pads 16, giving them better high-temperature resistance. Moreover, the air circulates within the hollow spokes 4, rim body 1, and cooling ring 5 without contacting or exchanging with the outside air, keeping the inside of the rim body 1 clean and extending its service life.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A carbon fiber bicycle high-temperature resistant rim, comprising a rim body (1), characterized in that, The wheel rim body (1) is internally provided with several baffles (7), and the baffles (7) divide the annular cavity inside the wheel rim body (1) into several cavities. The inner side of the wheel rim body (1) is provided with a bearing (15), and the outer wall of the bearing (15) is provided with a cooling ring (5). The side of the cooling ring (5) is provided with a brake pad (16). The interior of the cooling ring (5) is provided with several U-shaped holes (8) the same number as the baffles (7). The outer wall of the cooling ring (5) is integrally formed with several spoke seats (3) corresponding to the U-shaped holes (8). Each of the spoke seats (3) is provided with a pair of through holes (11) on the outer wall away from the cooling ring (5), and a one-way valve (11) is internally fixed therein. 0), and hollow spokes (4) are fixedly inserted into a pair of through holes (10). The ends of several pairs of hollow spokes (4) away from the spoke seat (3) are fixedly connected to the wheel rim body (1) and extend into several cavities in the wheel rim body (1). An elastic air storage structure is fixedly provided on one side of several spoke seats (3). An overflow hole (12) is opened on one side of several spoke seats (3) to connect the elastic air storage structure and the through hole (10) near the elastic air storage structure. The one-way valve (11) in each spoke seat (3) near and away from the elastic air storage structure respectively introduces air from one side of the hollow spoke (4) into one side of the U-shaped hole (8) and from one side of the U-shaped hole (8) into one side of the hollow spoke (4).

2. The high-temperature resistant carbon fiber bicycle rim according to claim 1, characterized in that, The number of spoke seats (3), the number of baffles (7), and the number of spoke seats (3) are all even numbers of six to sixteen.

3. The high-temperature resistant carbon fiber bicycle rim according to claim 1, characterized in that, The inner wall of the cooling ring (5) is provided with several enlarged annular grooves (9) corresponding to the U-shaped holes (8), and each enlarged annular groove (9) is vertically penetrated by the U-shaped holes (8).

4. The high-temperature resistant carbon fiber bicycle rim according to claim 1, characterized in that, The elastic gas storage structure includes a gas storage box (2), a piston (13), and a spring (14). A gas storage box (2) with an overflow hole (12) is fixedly provided on one side of the spoke seat (3). A piston (13) and a spring (14) are slidably provided inside the gas storage box (2) to cooperate with it. The left and right ends of the spring (14) respectively abut against the piston (13) and the inner wall of the gas storage box (2) away from the spoke seat (3).

5. A high-temperature resistant carbon fiber bicycle rim according to claim 1, characterized in that, The outer walls of the two hollow spokes (4) are integrally formed with heat dissipation fins (6), and a number of heat dissipation fins (6) are arranged in a circumferential array.

6. A high-temperature resistant carbon fiber bicycle rim according to claim 5, characterized in that, The two ends of several heat dissipation fins (6) are respectively fixedly connected to the wheel rim body (1) and the spoke seat (3).

7. A high-temperature resistant carbon fiber bicycle rim according to claim 5, characterized in that, The two heat dissipation fins (6) located on the outer walls of the two hollow spokes (4) close to each other are aligned at their end faces and integrally connected.

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