High-strength competition bicycle hollow shaft

Abstract

According to the technical scheme, the high-strength competition bicycle hollow shaft comprises a shaft body, a side bowl and inner shafts, a reinforcing ring is installed on the inner surface of the shaft body through a clamping groove, bearings A are installed on the two sides of the inner surface of the reinforcing ring through bearing grooves A, and the inner shafts are installed on the inner surfaces of the bearings A on the two sides. A reinforcing rod is installed in the middle of the interior of the inner shaft through an inner hole, a limiting groove is formed in the inner surface of the inner hole, a limiting table is arranged at the position, located at the limiting groove, of the outer surface of the reinforcing rod, and the limiting table is clamped in the limiting groove. According to the high-strength competition bicycle hollow shaft, the problems that an existing hollow shaft is low in strength and prone to deformation and damage on a high-strength competition bicycle, normal running of the bicycle is affected, and then normal proceeding of a competition is affected are solved, the deformation probability of the hollow shaft is reduced, and therefore the service life of the competition bicycle is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of competition bicycle use, concretely to a high -strength competition bicycle hollow axle. BACKGROUND

[0002] The competition bicycle is the bicycle specially designed for the competitive race and the competition purpose. The bicycle usually has the light weight, the high performance and the superior control performance, and the design and the manufacture of the competition bicycle aims at optimizing the performance and the speed of the rider to the maximum extent, makes it to achieve the best performance in the competition, and the competition bicycle usually adopts the aerodynamics design, including the aerodynamics frame, the handlebar and the wheel, to reduce the air resistance and improve the speed, and these bicycles usually are carefully tuned and customized to meet the demand of the professional rider and the competition requirement, and the hollow axle on the competition bicycle also needs the careful customization.

[0003] The strength of the prior art hollow axle is low, and the hollow axle is easily deformed and damaged on the high-strength competition bicycle, which affects the normal driving of the bicycle and then affects the normal progress of the competition, and therefore, the utility model provides a high-strength competition bicycle hollow axle. UTILITY MODEL CONTENTS

[0004] The utility model discloses a high -strength competition bicycle hollow axle, has the effect that the use intensity is high, to solve the strength of the prior art hollow axle is low, and the hollow axle is easily deformed and damaged on the high-strength competition bicycle, which affects the normal driving of the bicycle and then affects the normal progress of the competition.

[0005] In order to achieve the above object, the utility model provides the following technical scheme: a high -strength competition bicycle hollow axle, including axle body, side bowl and inner shaft, wherein the inner surface of axle body is installed with reinforcing ring through the clamping groove, the inner surface of reinforcing ring is installed with bearing A through bearing groove A on both sides, the inner surface of both sides bearing A is installed with inner shaft, and the inner shaft is installed with reinforcing rod through the inner hole in the middle.

[0006] Preferably, the inner surface of the inner hole is provided with a limiting groove, and the outer surface of the reinforcing rod is provided with a limiting table at the position of the limiting groove.

[0007] Preferably, the outer surface of the reinforcing ring is provided with a clamping table at the position of the clamping groove.

[0008] Preferably, the outer surface of the axle body is sleeved with a side bowl on both sides, and the outer surface of the side bowl is provided with a screwing connection table on one side.

[0009] Preferably, the outer surface of the axle body is provided with a sealing groove at the position of the side bowl, and the sealing groove is installed with a sealing ring.

[0010] Preferably, the inner surface of the reinforcing ring is provided with a bearing groove B near the side of the bearing A, and the bearing B is arranged in the bearing groove B.

[0011] Preferably, the inner surface of the side bowl is provided with a sealing ring, the inner surface of the sealing ring is provided with a compression ring, and the inner surface of the side bowl is provided with an extrusion boss.

[0012] Preferably, the outer surface of the inner shaft is provided with a spline tooth.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] 1、The utility model discloses a reinforcing ring, an inner shaft and a reinforcing rod are arranged, the hollow shaft using strength effect is improved, the reinforcing ring is arranged on the inner surface of the shaft body through the clamping groove, the bearing A is arranged on the both sides of the inner surface of the reinforcing ring through the bearing groove A, the inner shaft is arranged on the inner surface of the bearing A on the both sides, the reinforcing rod is arranged in the inner hole in the inner shaft, the strength of the hollow shaft is low, the hollow shaft is easily deformed and damaged on the high -strength competition bicycle, the normal travel of the bicycle is affected, and the normal progress of the competition is affected, the hollow shaft deformation probability is reduced, and the service life of the competition bicycle is improved.

[0015] 2、The utility model discloses a bearing A and bearing B are arranged, the bearing damage probability is reduced, the bearing A is arranged on the both sides of the inner surface of the reinforcing ring through the bearing groove A, the bearing groove B is arranged on the side of the inner surface of the reinforcing ring near the bearing A, and the bearing B is arranged in the bearing groove B, the hollow shaft is arranged with the same specification bearing, the same specification bearing is consistent in the wear resistance, the bearing is easily damaged simultaneously in the high -strength competition, the normal use of the hollow shaft is affected, the hollow shaft damage probability is improved, and the normal use of the competition bicycle is guaranteed.

[0016] 3、The utility model discloses a sealing ring, an extrusion boss and a compression ring are arranged, the inner shaft connecting portion is efficiently sealed, the sealing ring is arranged in the inner surface of the side bowl, the compression ring is arranged in the inner surface of the sealing ring, and the extrusion boss is arranged in the inner surface of the side bowl, the dustproof and waterproof performance of the hollow shaft is poor, the dust and water are easily entered into the hollow shaft in the use, the service life of the hollow shaft is affected, the hollow shaft damage probability is reduced, and the service life of the hollow shaft is improved. ACCURATE DRAWING

[0017] Figure 1 It is the front view structure schematic diagram of the utility model;

[0018] Figure 2 It is the side view structure schematic diagram of the utility model; Figure 1 It is the enlarged structure schematic diagram of the middle A;

[0019] Figure 3 It is the cross section structure schematic view of the utility model;

[0020] Figure 4 It is the side view structure schematic view of the utility model axle body;

[0021] Figure 5 It is Figure 3 It is the B amplification structure schematic view among them;

[0022] Figure 6 It is Figure 3 It is the C amplification structure schematic view among them.

[0023] Reference signs: 1, axle body; 2, side bowl; 3, screw connection platform; 4, inner shaft; 5, spline tooth; 6, reinforcing rod; 7, inner hole; 8, limiting groove; 9, limiting platform; 10, sealing ring; 11, reinforcing ring; 12, clamping groove; 13, clamping platform; 14, bearing groove A; 15, bearing A; 16, bearing B; 17, bearing groove B; 18, sealing ring; 19, sealing groove; 20, extrusion boss; 21, compression ring. DETAILED DESCRIPTION

[0024] The technical scheme of the utility model is further explained below in combination with the drawings and specific embodiments.

[0025] Embodiment one

[0026] As Figures 1-5 shown, to achieve the above object, the utility model provides the following technical scheme: a high-strength competition bicycle hollow axle, including axle body 1, side bowl 2 and inner shaft 4, the inner surface of axle body 1 is equipped with reinforcing ring 11 through clamping groove 12, the outer surface of reinforcing ring 11 is equipped with clamping platform 13 at the position of clamping groove 12, clamping platform 13 is clamped in the inside of clamping groove 12, the inner surface of reinforcing ring 11 is equipped with bearing A 15 through bearing groove A 14 on both sides, the inner surface of both sides bearing A 15 is equipped with inner shaft 4, the outer surface of inner shaft 4 is equipped with spline tooth 5, inner shaft 4 is equipped with reinforcing rod 6 through inner hole 7 in the middle, the strength of inner shaft 4 is improved by the reinforcing rod 6 set, the inner surface of inner hole 7 is equipped with limiting groove 8, the outer surface of reinforcing rod 6 is equipped with limiting platform 9 at the position of limiting groove 8, limiting platform 9 is clamped in the inside of limiting groove 8, the reinforcing rod 6 is carried out by the limiting platform 9 set, the outer surface of both sides of axle body 1 is sleeved with side bowl 2, the outer surface of side bowl 2 is equipped with screw connection platform 3 on adjacent side, the inner surface of reinforcing ring 11 is equipped with bearing groove B 17 near bearing A 15 side, bearing B 16 is installed in the inside of bearing groove B 17, the outer diameter of bearing A 15 and bearing B 16 is not the same, the inner shaft 4 is supported by the bearing A 15 and bearing B 16 set.

[0027] The working principle of the high-strength racing bicycle hollow shaft based on the embodiment 1 is that: after the utility model is installed, the utility model is installed on the bicycle, the pedals are installed on the two ends of the inner shaft 4 through the spline teeth 5, the utility model can be used, when being used, the use strength of the inner shaft 4 is improved through the reinforcing rod 6, meanwhile, the use strength of the shaft body 1 is improved through the reinforcing ring 11, the deformation probability of the utility model is reduced, the service life of the utility model is improved, and the equipment working process is completed.

[0028] Embodiment two

[0029] As Figure 3 , Figure 5 and Figure 6 indicated, the utility model discloses a kind of high-strength racing bicycle hollow shaft, compared with embodiment one, the utility model further includes: sealing groove 19 is equipped in the position of side bowl 2 on the outer surface of shaft body 1, sealing ring 18 is installed in sealing groove 19, sealing ring 18 is sealed to connecting portion by being set, sealing ring 10 is installed in the inner surface of side bowl 2, compression ring 21 is installed in the inside of sealing ring 10, extrusion boss 20 is equipped in the inner surface of side bowl 2, sealing ring 10 is extruded by being set extrusion boss 20, so that sealing ring 10 is tightly pressed on the outer surface of inner shaft 4.

[0030] In the embodiment, sealing ring 10 is extruded by being set extrusion boss 20 when being used, and sealing ring 10 is tightly pressed on the outer surface of inner shaft 4 by being set compression ring 21, the sealing effect of sealing ring 10 to inner shaft 4 is guaranteed, and connecting portion of side bowl 2 is sealed by being set sealing ring 18.

[0031] 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 enlightenment of the above embodiment, the above specific embodiments can be made by multiple alternative improvements and combinations by those skilled in the art.

Claims

1. A high-strength racing bicycle hollow axle comprising a shaft body (1), a side bowl (2) and an inner shaft (4), characterized in that: The inner surface of the shaft body (1) is provided with a reinforcing ring (11) through a clamping groove (12), the inner surface of the reinforcing ring (11) is provided with a bearing A (15) through a bearing groove A (14) on both sides, the inner surface of the bearing A (15) on both sides is provided with an inner shaft (4), and the inner shaft (4) is provided with a reinforcing rod (6) through an inner hole (7) in the middle.

2. A high strength hollow axle for a racing bicycle as defined in claim 1, wherein: The inner surface of the inner hole (7) is provided with a limiting groove (8), the outer surface of the reinforcing rod (6) is provided with a limiting table (9) at the position of the limiting groove (8), and the limiting table (9) is clamped in the limiting groove (8).

3. A high strength hollow axle for a racing bicycle as defined in claim 1 wherein: The outer surface of the reinforcing ring (11) is provided with a clamping table (13) at the position of the clamping groove (12), and the clamping table (13) is clamped in the clamping groove (12).

4. A high strength hollow axle for a racing bicycle as defined in claim 1 wherein: The outer surface of the shaft body (1) is provided with a sealing groove (19) at the position of the side bowl (2), and the sealing groove (19) is provided with a sealing ring (18).

5. A high strength competition bicycle hollow axle as defined in claim 1, wherein: The inner surface of the reinforcing ring (11) is provided with a bearing groove B (17) near one side of the bearing A (15), the bearing groove B (17) is provided with a bearing B (16), and the outer diameters of the bearing A (15) and the bearing B (16) are different.

6. A high strength competition bicycle hollow axle as defined in claim 1, wherein: The inner surface of the side bowl (2) is provided with a sealing ring (10) in the middle, the inner surface of the sealing ring (10) is provided with a pressing ring (21) in the middle, and the inner surface of the side bowl (2) is provided with an extrusion boss (20) in the middle.

7. A high strength competition bicycle hollow axle as defined in claim 1 wherein: The outer surface of the inner shaft (4) is provided with a spline tooth (5).

8. A high strength competition bicycle hollow axle as defined in claim 1, wherein: ​

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