Barrel axle for a bicycle

Abstract

The utility model discloses a barrel axle of bicycle contains a axle rod, and the axle rod has two ends, forms a non - circular tool hole on the end face of at least one end, and forms a combination hole with screw thread on the bottom surface of tool hole, and the water hole that communicates with the combination hole is set up on the axle rod radial.

Description

Technical Field

[0001] This utility model relates to a thru-axle, specifically to a bicycle thru-axle. Background Technology

[0002] The thru-axle of a bicycle is mainly located at the end of the front or rear fork tube to connect with the wheel hub and mount the front or rear wheel, as shown in Taiwan Utility Model Patent No. M538464. However, existing bicycle thru-axles have no other function besides connecting with the wheel hub. At the same time, when riding a bicycle in the wild, dust or mud can easily get stuck in the wheel hub, and existing thru-axles do not have any structure or function to remove dust or mud, which can easily cause the bicycle wheel to jam, thus causing inconvenience and even safety problems when riding. Utility Model Content

[0003] Therefore, in view of the inconvenience and shortcomings of the existing bicycle axle structure and its use, the inventor has created this utility model that can improve upon the existing shortcomings through continuous experimentation and research.

[0004] The main purpose of this utility model is to provide a bicycle thru-axle that allows for easy assembly or disassembly through a tool hole, and also allows for the connection of other tool accessories such as lights or pedals, thereby improving the convenience and versatility of the thru-axle.

[0005] To achieve the above objectives, this utility model provides a bicycle thru-axle, which includes:

[0006] A shaft has two ends, a non-circular tool hole is formed on the end face of at least one end, and a threaded engagement hole is formed on the bottom surface of the tool hole. A drain hole communicating with the engagement hole is radially provided on the shaft.

[0007] The bicycle axle has a head and an external thread at each end of the axle shaft, the outer diameter of the head being larger than that of the external thread.

[0008] The bicycle axle has a tool hole, a connecting hole, and a drain hole at both ends of the axle.

[0009] The bicycle axle described herein has a tool hole, a connecting hole, and a drain hole only at the end of the axle forming the head.

[0010] The bicycle axle has a tool hole, a mating hole, and a drain hole only at the end of the axle where an external thread is formed.

[0011] The bicycle axle has at least one threaded sand-removing groove formed on the outer surface of the axle shaft.

[0012] The bicycle axle has two threaded sand-removing grooves formed on the outer surface of the axle shaft.

[0013] The bicycle axle has a threaded sand-removing groove formed on the outer surface of the axle near the head end.

[0014] The bicycle axle has a threaded sand-removing groove formed on the outer surface of the axle near the end where the external thread is formed.

[0015] The bicycle's thru-axle, wherein the axle is a solid rod.

[0016] Through the above-mentioned technical means, this utility model can facilitate the assembly or disassembly of the barrel axle through the tool hole, and can be used to connect additional components with screws through the connecting hole, and the surface treatment solution can be discharged through the drain hole, thereby achieving the effects of improving the practicality, ease of use and extending the service life of the bicycle barrel axle. Attached Figure Description

[0017] Figure 1 This is a three-dimensional view of the application of this utility model to the rear fork tube of a bicycle.

[0018] Figure 2 This is a partially enlarged cross-sectional view of the application of this utility model to the rear fork tube of a bicycle.

[0019] Figure 3 This is a perspective view of the first embodiment of the present utility model.

[0020] Figure 4 This is a cross-sectional view of the first embodiment of the present invention.

[0021] Figure 5 This is a partially enlarged cross-sectional view of the first embodiment of the present invention.

[0022] Figure 6 This is a cross-sectional view of the second embodiment of the present invention.

[0023] Figure 7 This is a partially enlarged cross-sectional view of the second embodiment of the present invention.

[0024] Figure 8 This is a perspective view of the third embodiment of the present utility model.

[0025] Figure 9 This is a perspective view of the fourth embodiment of the present utility model.

[0026] Symbol explanation:

[0027] 10, 10A, 10B, 10C: Shafts

[0028] 102: Head

[0029] 104: External thread

[0030] 12: Tool Hole

[0031] 14: Connecting Hole

[0032] 16: Drainage hole

[0033] 18: Sand Ditch

[0034] 20: Rear fork tube

[0035] 22: Wheel hub

[0036] 30: Screw Detailed Implementation

[0037] This utility model provides a bicycle thru-axle; please refer to the following: Figure 1 and Figure 2 The thru-axle of the bicycle described in this utility model can be attached to the rear fork tube 20 or the front fork tube of the bicycle for connection with the wheel hub 22 or the wheel. Please refer to the following for details. Figure 3 and Figure 4 The bicycle thru-axle of this utility model mainly has a rod-shaped axle 10. In this embodiment, the axle 10 can be a solid rod. The axle 10 has two ends. One end can form a head 102 with a large outer diameter, and the other end has an external thread 104. The head 102 and the external thread 104 can be used to connect with the bicycle wheel hub 22, front fork tube or rear fork tube 20. On the end face of both ends of the axle 10, there can be a non-circular tool hole 12. Each tool hole 12 can be hexagonal, triangular, straight, or cross-shaped, etc., to accommodate different types of tools inserted into the tool hole 12, thereby rotating or fixing the thru-axle to facilitate the assembly or disassembly of the thru-axle.

[0038] A threaded mating hole 14 is formed on the bottom surface of tool hole 12. Please refer to the attached image. Figure 2 As shown, the connecting hole 14 can be used to connect an additional component with a screw 30, such as a foot bar, lamp or reflector, thereby increasing the versatility and multi-functionality of the barrel shaft in use.

[0039] Please also refer to the following: Figure 4 and Figure 5A drainage hole 16 is radially provided on the shaft 10 and communicates with the connecting hole 14. Through the drainage hole 16, the anodic chemicals or other chemicals that enter the tool hole 12 and the connecting hole 14 during the surface treatment of the barrel shaft can be discharged through the drainage hole 16. This prevents the chemicals used during the surface treatment of the barrel shaft from remaining in the holes on the shaft 10, which would cause corrosion of the shaft 10 due to chemical residue and damage to the barrel shaft structure, thereby extending the service life of the barrel shaft.

[0040] Please also refer to the following: Figure 3 and Figure 4 At least one threaded sand-removing groove 18 can be provided on the outer surface of the axle 10, as shown in the figure. One sand-removing groove 18 can be provided at each end of the axle 10, and each sand-removing groove 18 is located near the water-removing hole 16. In this way, by providing the sand-removing groove 18, the bicycle can avoid dust or mud from getting stuck between the axle and the wheel hub when riding in the wild, thereby improving the smoothness and safety of riding the bicycle.

[0041] In this embodiment, both ends of the shaft 10 are provided with tool holes 12, connecting holes 14 and drain holes 16, so that other attachment components can be attached to both ends of the shaft.

[0042] Please refer to the following: Figure 6 and Figure 7 In the second embodiment of this utility model, the shaft 10A may be a non-solid tube, and a through hole 106 is formed through the shaft 10A.

[0043] Please refer to the following: Figure 8 and Figure 9 In other embodiments of this utility model, the tool hole 12, the connecting hole 14, the water drainage hole 16, and the sand drainage ditch 18 may be provided only at one end of the shafts 10B and 10C, such as... Figure 8 As shown, tool hole 12, connecting hole 14, water drainage hole 16, and sand drainage groove 18 are provided at one end of shaft 10B forming head 102, or as shown in the figure. Figure 9 As shown, tool hole 12, connecting hole 14, dewatering hole 16 and sand discharge groove 18 are provided at the end of shaft 10C that is provided with external thread 104.

Claims

1. A barrel axle for a bicycle, characterized in that, Includes: A shaft has two ends, a non-circular tool hole is formed on the end face of at least one end, and a threaded engagement hole is formed on the bottom surface of the tool hole. A drain hole communicating with the engagement hole is radially provided on the shaft.

2. A barrel axle for a bicycle as claimed in claim 1, wherein, The shaft has a head and an external thread at each end, with the outer diameter of the head being larger than that of the external thread.

3. The bicycle thru-axle as described in claim 2, characterized in that, Tool holes, connection holes, and dewatering holes are provided at both ends of the shaft.

4. The bicycle thru-axle as described in claim 2, characterized in that, Tool hole, mating hole and dewatering hole are provided only at one end of the shaft forming the head.

5. The bicycle thru-axle as described in claim 2, characterized in that, Tool hole, mating hole and dewatering hole are provided only at the end of the shaft where the external thread is formed.

6. The thru-axle of a bicycle as described in any one of claims 1 to 5, characterized in that, At least one threaded sand-removing groove is formed on the outer surface of the shaft.

7. The bicycle thru-axle as described in claim 4, characterized in that, Two threaded sand-removing grooves are formed on the outer surface of the shaft.

8. The bicycle thru-axle as described in claim 4, characterized in that, A threaded sand-discharging groove is formed on the outer surface of the shaft near the head end.

9. The bicycle thru-axle as described in claim 5, characterized in that, A threaded sand-removing groove is formed on the outer surface of the shaft near the end where the external thread is formed.

10. The thru-axle of a bicycle as described in any one of claims 1 to 5 and 7 to 9, characterized in that, The shaft is a solid rod.

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