Wear-resistant hollow shaft of mountain bike

Abstract

According to the technical scheme, the wear-resistant mountain bike hollow shaft comprises a shaft body and a main shaft, bearings B are installed on the two sides of the inner surface of the shaft body, an inner ring pipe is installed on the inner surfaces of the bearings B on the two sides, bearings A are installed on the two sides of the inner surface of the inner ring pipe, and the main shaft is installed on the inner surfaces of the bearings A on the two sides. A through hole is formed in the inner ring pipe, sealing rings are connected to the two sides of the inner surface of the shaft body in a sleeving mode, positioning rings are installed in the middles of the interiors of the sealing rings, elastic plates are installed on the outer surfaces of the positioning rings, and protection rings are installed on the two sides of the tops of the elastic plates. According to the wear-resistant hollow shaft of the mountain bike, the problems that a bearing of an existing hollow shaft of the mountain bike is single in arrangement, the hollow shaft is blocked when the single bearing is blocked in the using process, and normal use of the hollow shaft is affected are solved, the blocking probability of the hollow shaft is reduced, and therefore normal use of the hollow shaft is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to mountain bike bicycle use technical field, concretely is a kind of wear-resistant type mountain bike hollow shaft. BACKGROUND

[0002] Mountain bike is a kind of specially designed for riding in rugged mountain, cross-country and outdoor environment Bicycle, the frame of mountain bike is usually designed solid and durable, to cope with the challenge of bump, vibration and uneven road. Common materials include aluminum alloy, carbon fiber and steel, mountain bike is usually equipped with wide tire and strong mountain bike tire, to provide better grip and stability, adapt to complex road conditions, the design of mountain bike aims to provide excellent performance and control for rider in rugged mountain and cross-country environment, so that it can cope with various challenges and enjoy the fun of outdoor cycling, the hollow shaft of mountain bike needs fine customization.

[0003] The bearing of the hollow shaft of the existing mountain bike is single, when a single bearing is jammed during use, the hollow shaft is jammed, which affects the normal use of the hollow shaft, therefore, we propose a wear-resistant type mountain bike hollow shaft. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a wear-resistant type mountain bike hollow shaft, with the effect of multiple bearing settings, to solve the problem of single bearing setting of the hollow shaft of the existing mountain bike, when a single bearing is jammed during use, the hollow shaft is jammed, which affects the normal use of the hollow shaft.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a wear-resistant type mountain bike hollow shaft, including shaft body and main shaft, wherein the inner surface of the shaft body is provided with bearing B on both sides, the inner surface of the bearing B on both sides is provided with inner ring pipe, the inner surface of the inner ring pipe is provided with bearing A on both sides, the inner surface of the bearing A on both sides is provided with main shaft, and the inner ring pipe is provided with through hole.

[0006] Preferably, the inner surface of the inner ring pipe is provided with oil guide groove A, the oil guide groove A is provided with ten, and the ten oil guide grooves A are evenly arranged on the inner surface of the inner ring pipe.

[0007] Preferably, the outer surface of the inner ring pipe is provided with oil guide groove B, the oil guide groove B is provided with ten, and the ten oil guide grooves B are evenly arranged on the outer surface of the inner ring pipe.

[0008] Preferably, the inner part of the shaft body is provided with reinforcing rod, the reinforcing rod is provided with fifteen, and the fifteen reinforcing rods are evenly arranged at the inner part of the shaft body.

[0009] Preferably, the shaft body is provided with side bowl on both sides, and the inner surface of the side bowl is provided with slot.

[0010] Preferably, the shaft body inner surface is sleeved with a sealing ring on both sides, a positioning ring is arranged in the middle of the sealing ring, an elastic plate is arranged on the outer surface of the positioning ring, and a protection ring is arranged on both sides of the top of the elastic plate.

[0011] Preferably, a clamping groove is arranged on one side of the sealing ring, and a fastening spring is arranged in the clamping groove.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] 1. The utility model discloses a hollow shaft bearing structure of mountain bike, which comprises a hollow shaft body, a bearing A, a bearing B and an inner ring pipe.

[0014] 2. The utility model discloses a hollow shaft bearing structure of mountain bike, which comprises a hollow shaft body, a bearing A, a bearing B and an inner ring pipe.

[0015] 3. The utility model discloses a hollow shaft bearing structure of mountain bike, which comprises a hollow shaft body, a bearing A, a bearing B and an inner ring pipe. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a front view structural schematic drawing of the utility model;

[0017] Figure 2 It is a sectional view structural schematic drawing of the utility model;

[0018] Figure 3 It is Figure 2 It is an enlarged structural schematic drawing of the middle A;

[0019] Figure 4 It isFigure 2 A schematic diagram of the enlarged structure of B;

[0020] Figure 5 This is a side view of the structure of this utility model;

[0021] Figure 6 for Figure 5 The enlarged structural diagram of C is shown below.

[0022] Reference numerals: 1. Shaft body; 2. Side cup; 3. Slot; 4. Main shaft; 5. Reinforcing rod; 6. Inner ring tube; 7. Sealing ring; 8. Elastic plate; 9. Clamping groove; 10. Fastening spring; 11. Positioning ring; 12. Protective ring; 13. Through hole; 14. Bearing A; 15. Bearing B; 16. Oil guide groove A; 17. Oil guide groove B. Detailed Implementation

[0023] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0024] Example 1

[0025] like Figure 1 , Figure 2 and Figures 4-6 As shown, to achieve the above objectives, this utility model provides the following technical solution: a wear-resistant hollow shaft for mountain bikes, comprising a shaft body 1 and a main shaft 4. Bearings B15 are installed on both sides of the inner surface of the shaft body 1. Inner ring tubes 6 are installed on the inner surfaces of the bearings B15 on both sides. The shaft body 1 is filled with lubricating oil. Bearings A14 are installed on both sides of the inner surface of the inner ring tube 6. The main shaft 4 is installed on the inner surfaces of the bearings A14 on both sides. The inner ring tube 6 has through holes 13 inside and oil guide grooves A16 on its inner surface. A total of ten oil guide grooves A16 are provided. There are ten oil guide grooves A16 evenly distributed on the inner surface of the inner ring pipe 6. There are ten oil guide grooves B17 on the outer surface of the inner ring pipe 6. There are fifteen reinforcing rods 5 in the middle of the inside of the shaft body 1. The fifteen reinforcing rods 5 are evenly distributed in the middle position inside the shaft body 1. The shaft body 1 is supported by the fifteen reinforcing rods 5. Side cups 2 are sleeved on both sides of the shaft body 1. The inner surface of the side cups 2 is provided with slots 3.

[0026] The working principle of the wear-resistant hollow axle of the mountain bike based on the embodiment 1 is that the utility model is installed in the bicycle, and the pedals are installed on both ends of the main shaft 4, so that the utility model can be used, the bearing A14 and the bearing B15 are arranged to facilitate the rotation of the main shaft 4, even if the bearing A14 or the bearing B15 is damaged, the main shaft 4 can still rotate easily, and the through hole 13, the oil guide groove A16 and the oil guide groove B17 are arranged to guide the lubricating oil, the bearing A14 and the bearing B15 are lubricated by the lubricating oil, so that the service life of the utility model is improved, and the equipment working process is completed.

[0027] Embodiment two

[0028] As Figure 2 and Figure 3 shown, the utility model discloses a kind of wear-resistant hollow axle of mountain bike, compared with embodiment one, this embodiment further includes: the inner surface both sides of axle body 1 are sleeved with sealing ring 7, sealing ring 7 inside middle installation has locating ring 11, locating ring 11 outer surface is equipped with elastic plate 8, sealing ring 7 is pressed in the inner surface of axle body 1 by being extruded to sealing ring 7 by the setting elastic plate 8, elastic plate 8 top both sides are equipped with protection ring 12, sealing ring 7 one side middle is equipped with clamping groove 9, clamping groove 9 is equipped with fastening spring 10 inside, sealing ring 7 is pressed in the outer surface of main shaft 4 by being extruded to sealing ring 7 by the setting fastening spring 10.

[0029] In this embodiment, in use, locating ring 11 is supported by the elastic force of elastic plate 8, sealing ring 7 is extruded by locating ring 11 to outer ring, sealing ring 7 is pressed in the inner surface of axle body 1, and sealing ring 7 is pressed in the outer surface of main shaft 4 by the elastic force of fastening spring 10 extruding sealing ring 7, main shaft 4 is efficiently sealed by sealing ring 7.

[0030] The above specific embodiments are only several preferred embodiments of the utility model, based on the technical scheme of the utility model and the related inspiration of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A hollow axle for a mountain bike of the wear-resistant type comprising a shaft body (1) and a spindle (4), characterized in that: The inner surface of the shaft body (1) is provided with bearings B (15) on both sides, the inner surface of the bearings B (15) is provided with inner ring pipes (6) on both sides, the inner surface of the inner ring pipes (6) is provided with bearings A (14) on both sides, the inner surface of the bearings A (14) is provided with main shafts (4) on both sides, and the inner ring pipes (6) are provided with through holes (13) inside.

2. A wear-resistant mountain bike hollow axle according to claim 1, characterized in that: The inner surface of the inner ring pipe (6) is provided with oil guide grooves A (16), and ten oil guide grooves A (16) are evenly arranged on the inner surface of the inner ring pipe (6).

3. A wear-resistant mountain bike hollow axle according to claim 1, characterized in that: The outer surface of the inner ring pipe (6) is provided with oil guide grooves B (17), and ten oil guide grooves B (17) are evenly arranged on the outer surface of the inner ring pipe (6).

4. The hollow axle of claim 1, wherein: The inner surface of the inner ring pipe (6) is provided with oil guide grooves A (16), and ten oil guide grooves A (16) are evenly arranged on the inner surface of the inner ring pipe (6).

5. The hollow axle of claim 1, wherein: The inner surface of the shaft body (1) is provided with reinforcing rods (5) in the middle, and fifteen reinforcing rods (5) are evenly arranged in the middle of the inner surface of the shaft body (1).

6. A wear-resistant mountain bike hollow axle according to claim 1, characterized in that: Both sides of the shaft body (1) are sleeved with side bowls (2), and the inner surface of the side bowl (2) is provided with a slot (3).

7. A wear-resistant mountain bike hollow axle according to claim 6, characterized in that: The inner surface of the shaft body (1) is provided with sealing rings (7) on both sides, the inner surface of the sealing ring (7) is provided with positioning rings (11) in the middle, the outer surface of the positioning ring (11) is provided with elastic plates (8), and the top of the elastic plate (8) is provided with protection rings (12) on both sides. The inner surface of the shaft body (1) is provided with sealing rings (7) on both sides, the inner surface of the sealing ring (7) is provided with positioning rings (11) in the middle, the outer surface of the positioning ring (11) is provided with elastic plates (8), and the top of the elastic plate (8) is provided with protection rings (12) on both sides. The inner surface of the shaft body (1) is provided with sealing rings (7) on both sides, the inner surface of the sealing ring (7) is provided with positioning rings (11) in the middle, the outer surface of the positioning ring (11) is provided with elastic plates (8), and the top of the elastic plate (8) is provided with protection rings (12) on both sides.

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