CN210912749U

CN210912749U - Thread replacing structure for bicycle axle member

Info

Publication number: CN210912749U
Application number: CN201921626834.8U
Authority: CN
Inventors: 温宜玲
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-27
Filing date: 2019-09-27
Publication date: 2020-07-03
Anticipated expiration: 2029-09-27

Abstract

The utility model discloses a thread replacing structure of a bicycle shaft part, which comprises a shaft rod, a quick-release component and a thread replacing component, wherein a connecting end and a driving end are respectively arranged at the two ends of the shaft rod, a connecting screw hole is arranged on the end surface of the connecting end, the quick-release component is combined with the driving end of the shaft rod, the thread replacing component comprises a combining part and a screwing part, the outer peripheral surface of the combining part is provided with an external thread for screw locking in the combining screw hole, and the outer peripheral surface of the screwing part is provided with an external thread for screw locking in a screw hole of a bicycle frame; therefore, the shaft lever can replace different threads and change the length so as to achieve the purpose of being suitable for being installed on frames with various specifications.

Description

Thread replacing structure for bicycle axle member

Technical Field

The utility model relates to a technical field in the aspect of the structure of bicycle axle spare especially relates to one kind and can make the axostylus axostyle can change different screw threads and change length to reach the screw thread change structure that is suitable for the bicycle axle spare of efficacy such as installing in various specifications frames.

Background

As shown in FIG. 1, a shaft 10 is integrally provided with a threaded portion 11 at one end and a quick release assembly 12 at the other end, the threaded portion 11 is provided with external threads for being screwed into a threaded hole of a bicycle frame, and the quick release assembly 12 is used for tightening the bicycle frame.

However, the size and pitch of the screw hole for the screw lock of the shaft 10 are different according to different labels and specifications of the bicycle frame on the market, and the wheel base is different, so manufacturers need to produce bicycle axle pieces with different external thread specifications and different shaft lengths for selection, which greatly increases the cost of the manufacturers.

In view of the above, the present inventor has made extensive studies and studies to develop and design the present invention.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at solves the unable general frame of installing in various specifications of well-known bicycle shaft spare, and can make the cost of producer improve the scheduling problem by a wide margin.

Bicycle shaft's screw thread change structure, including an axostylus axostyle, a quick detach subassembly and a screw thread replacement part. Wherein, a connecting end and a driving end are respectively arranged at two ends of the shaft lever, and a group of connecting screw holes are arranged on the end surface of the connecting end. The quick-release component is combined with the driving end of the shaft rod. The screw replacement part comprises an assembling part and a screwing part, wherein the outer peripheral surface of the assembling part is provided with external threads for being screwed in the assembling screw hole, and the outer peripheral surface of the screwing part is provided with external threads for being screwed in a screw hole of a bicycle frame.

The utility model provides a structure is changed to bicycle shaft's screw thread, the accessible is changed the screw thread replacement spare that has different screw threads or length, can make its frame that is applicable to various different specifications, so alright reach the efficiency of saving cost and convenient to use.

Drawings

FIG. 1 is a schematic structural view of a known bicycle axle member;

FIG. 2 is a perspective exploded view of the present invention;

FIG. 3 is a perspective view of the present invention;

FIG. 4 is an enlarged schematic view of the assembled section of the present invention;

FIG. 5 is a schematic view of the usage state of the present invention;

fig. 6 is a schematic perspective view of another embodiment of the present invention;

fig. 7 is a schematic cross-sectional view of another embodiment of the present invention.

According to the description:

Prior Art

10 shaft 11 screw part

12 quick-release component

The utility model discloses

20 shaft 21 assembling end

22 driving end 23 group connection screw hole

24 positioning screw hole 25 embedding part

26 combining screw hole

30 quick-release assembly 31 sleeve part

32 handle 33 trepanning

34 slotted hole 35 combined bolt

40 screw replacement 41 assembly

42 screw part 43 positioning ring groove

44 polygonal groove 40a thread replacement

42a screw part

50 positioning bolt

60 screw hole of frame 61

62 washer 63 fork rod

64 wheel hub

70 guide wheel 71 axle hole

72 chain groove 73 bristle

80 stop washer

90 chain

Detailed Description

Please refer to fig. 2-4, which show that the thread replacing structure of the bicycle axle of the present invention includes a shaft rod 20, a quick release assembly 30, a thread replacing member 40 and a positioning bolt 50, wherein:

the shaft 20 has a connecting end 21 and a driving end 22 at two ends thereof. The end face of the assembling end 21 is provided with an assembling screw hole 23, and the peripheral surface is provided with a positioning screw hole 24 penetrating through the assembling screw hole 23. The driving end 22 has an embedded portion 25 with a larger outer diameter, the outer peripheral surface of the embedded portion 25 is annularly provided with a plurality of convex teeth, and the end surface of the driving end 22 is provided with a combination screw hole 26.

The quick release assembly 30 has a receiving portion 31 and a shank portion 32 extending from one side of the receiving portion 31. One side of the engaging portion 31 has a hole 33 for engaging with the engaging portion 25, and the other side has a slot 34 penetrating through the hole 33 for a connecting bolt 35 to be inserted and screwed into the connecting screw hole 26, so that the quick release assembly 30 is connected to the driving end 22 of the shaft 20 and drives the shaft 20 to rotate axially.

The screw replacement 40 includes a connecting portion 41 and a screw portion 42 with a larger outer diameter. The outer periphery of the assembling portion 41 has an external thread for being screwed into the assembling screw hole 23, and the outer periphery of the assembling portion 41 is provided with a positioning ring groove 43 corresponding to the positioning screw hole 24. The outer peripheral surface of the screw portion 42 has external threads for being screwed into a screw hole 61 of a frame 60, and the end surface of the screw portion 42 has a polygonal groove 44 (e.g. hexagonal groove) for being inserted with a tool (e.g. hexagonal wrench) for being rotated by force.

The positioning bolt 50 is screwed into the positioning screw hole 24, and one end of the positioning bolt is embedded into the positioning ring groove 43 of the screw replacement 40, so as to prevent the screw replacement 40 from easily withdrawing from the assembling screw hole 23.

Please refer to fig. 2 and 5, which indicate that the bicycle axle of the present invention can select a suitable screw replacing member 40 according to the specification of the screw hole 61 of the frame 60, then screw-lock the assembling portion 41 of the screw replacing member 40 in the assembling screw hole 23, and screw-lock and position the same by the positioning bolt 50, then cooperatively sleeve a plurality of washers 62 on the shaft rod 20, and insert the shaft rod 20 through the two forks 63 of the frame 60 and the hub 64 therebetween, and then drive the quick release assembly 30 to screw-lock the screw portion 42 of the screw replacing member 40 in the screw hole 61 of one fork 63 of the frame 60. When the bicycle axle of the present invention is used for the bicycle frame 60 of another specification, only another suitable screw thread replacing member 40a needs to be replaced, and the screw thread portion 42a of the screw thread replacing member 40a can be pre-fabricated with different screw threads and screw pitches, so that the manufacturer does not need to prepare the axle rod 20 with different screw threads and lengths, and the consumer only needs to purchase and replace the screw

thread replacing members

40 and 40a with different screw threads or lengths, and can be adapted to the bicycle frames 60 of various specifications, thereby achieving the effects of saving cost and being convenient to use.

Referring to fig. 6 and 7, another embodiment of the present invention is shown, which has a structure substantially the same as that of the above embodiment, except that the embodiment further includes a guide wheel 70 and a stop washer 80. Wherein the shaft 20 has a shorter length, and the screwing portion 42 of the screw replaceable component 40 is screwed into the screw hole 61 of the fork rod 63 on one side of the frame 60, so that the bicycle shaft of the present invention is combined on the inner side of the frame 60 in a cantilever manner. The guide wheel 70 has a through shaft hole 71 at the center for being freely rotatably sleeved on the shaft 20, a chain slot 72 is annularly arranged on the outer peripheral surface for a chain 90 to wind, and a plurality of bristles 73 are arranged on the wall of the chain slot 72 for cleaning the chain 90 in the chain slot 72. The stop washer 80 is sleeved on the threaded portion 42 of the screw replacement 40 and is clamped between the screw replacement 40 and the shaft 20.

The utility model provides a structure is changed to bicycle shaft's screw thread, the accessible is changed the

screw thread replacement

40, 40a that have different screw threads or length, can make its frame 60 that is applicable to various different specifications, so alright reach the efficiency of saving cost and convenient to use.

In summary, the present invention has the advantages and practical value, and similar products are not disclosed in the similar products, so the application elements that are consistent with the patent of the present invention are still applied.

Claims

1. A thread exchanging structure of a bicycle axle member, comprising:

the two ends of the shaft lever are respectively provided with a connecting end and a driving end, and the end surface of the connecting end is provided with a group of connecting screw holes;

the quick-release component is combined with the driving end of the shaft lever; and

the screw thread replacing part comprises a combining part and a screw thread part, wherein the outer peripheral surface of the combining part is provided with external screw threads for being screwed in the combining screw hole, and the outer peripheral surface of the screw thread part is provided with external screw threads for being screwed in a screw hole of a bicycle frame.

2. The thread exchanging structure for a bicycle axle member according to claim 1, further comprising a positioning bolt, wherein a positioning screw hole penetrating through the assembling screw hole is formed in an outer peripheral surface of the assembling end, the positioning bolt is screwed into the positioning screw hole, and one end of the positioning bolt can abut against the assembling portion.

3. The thread exchanging structure for a bicycle shaft member according to claim 2, wherein a positioning ring groove is provided in an outer peripheral surface of the assembling portion corresponding to the positioning screw hole, and the positioning ring groove allows one end of the positioning bolt to be inserted therein.

4. The thread-exchanging structure for a bicycle axle member according to claim 1, wherein the driving end has an engaging portion, the engaging portion has a plurality of teeth around an outer peripheral surface thereof, the driving end has a coupling screw hole on an end surface thereof, the quick release assembly has a receiving portion and a shank portion extending from the receiving portion, one side surface of the receiving portion has a receiving hole for receiving the engaging portion, and the other side surface has a slot hole penetrating through the receiving hole for receiving a coupling bolt to be screwed into the coupling screw hole, so that the quick release assembly is coupled to the driving end of the axle rod and can drive the axle rod to rotate axially.

5. The thread exchanging structure for a bicycle shaft member according to claim 1, wherein the end surface of the thread engagement portion has a polygonal groove into which a tool can be inserted to be forcibly rotated.

6. The thread-exchanging structure for a bicycle shaft member according to claim 1, further comprising a guide wheel, wherein the guide wheel has a through-hole at a center thereof for freely rotatably engaging with the shaft, a chain slot is formed around an outer circumferential surface thereof for a chain to be wound around, and a plurality of bristles are formed on a wall of the chain slot for cleaning the chain in the chain slot.

7. The bicycle axle member thread exchanging structure of claim 6, further comprising a stop washer for being sleeved on the threaded portion of the thread substitute member and being clamped between the thread substitute member and the axle rod.