CN217761686U

CN217761686U - Quick detach formula bicycle axletree

Info

Publication number: CN217761686U
Application number: CN202221494201.8U
Authority: CN
Inventors: 左红诚
Original assignee: Kunshan Jiuhongxing Sports Equipment Technology Co ltd
Current assignee: Kunshan Jiuhongxing Sports Equipment Technology Co ltd
Priority date: 2022-06-15
Filing date: 2022-06-15
Publication date: 2022-11-08
Anticipated expiration: 2032-06-15

Abstract

The utility model provides a quick-release bicycle axle, which comprises a central shaft, an axle component and a quick-release unit, wherein the axle component is sleeved at the middle part of the central shaft, the quick-release unit is sleeved at the end part of the central shaft, and a snap spring which is arranged along the circumferential extension of the central shaft is arranged between the central shaft and the quick-release unit; an outer clamping groove used for clamping and fixing the clamp spring is formed in the outer wall of the central shaft, an inner clamping groove used for clamping and fixing the clamp spring is formed in the inner wall of the quick-release unit, the outer clamping groove corresponds to the inner clamping groove, part of the clamp spring is located on the outer clamping groove, and part of the clamp spring is located on the inner clamping groove; the clamp spring is provided with an opening. The utility model discloses simple structure, the design is exquisite, need not be with the help of the instrument, easy dismounting, and is swift, realizes the structure conversion of bicycle axletree fast.

Description

Quick detach formula bicycle axletree

Technical Field

The utility model relates to a bicycle axletree technical field especially relates to a quick detach formula bicycle axletree.

Background

Bicycle axles are cylindrical parts that penetrate into the hub to bear the weight of the vehicle body. As the times have progressed, consumers have enjoyed different feelings in riding with respect to bicycle products from simple and rapid conversion to different products. Therefore, the high requirement that the quick-release type side cover and the cylindrical shaft type side cover can be simply, easily and quickly exchanged is provided, and the quick-release type side cover and the cylindrical shaft type side cover can be replaced by quickly dismounting the quick-release type side cover or the cylindrical shaft type side cover at the two ends of the axle.

In the prior art, as shown in fig. 1, quick-release type side covers 2 or cylindrical shaft type side covers 3 are installed at two ends of a central shaft 1, in order to realize the replacement of the quick-release type side covers and the cylindrical shaft type side covers, the quick-release type side covers 2 and the cylindrical shaft type side covers 3 are all sleeved with the central shaft 1 by using rubber O-rings, but because the clamping force of the rubber O-rings is limited, other axle assemblies on the central shaft 1 can cause the quick-release type side covers 2 or the cylindrical shaft type side covers 3 to slide off the central shaft 1 due to the dead weight problem.

Even if the quick-release type side cover 2 or the cylindrical shaft type side cover 3 is screwed with the central shaft 1 by adopting a mode of locking thread combination in order to avoid the quick-release type side cover 2 or the cylindrical shaft type side cover 3 from sliding off, when the quick-release type side cover 2 and the cylindrical shaft type side cover 3 are exchanged, the exchange can be realized by taking a wrench as a tool, which is very inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem provide a quick detach formula bicycle axletree, simple structure, the design is exquisite, need not be with the help of the instrument, easy dismounting, and is swift, realizes the structure conversion of bicycle axletree fast.

In order to solve the technical problem, the utility model provides a quick-release bicycle axle, which comprises a central shaft, an axle component and a quick-release unit, wherein the axle component is sleeved on the middle part of the central shaft, the quick-release unit is sleeved on the end part of the central shaft, and a snap spring which extends along the circumferential direction of the central shaft is arranged between the central shaft and the quick-release unit;

an outer clamping groove used for clamping and fixing the clamp spring is formed in the outer wall of the central shaft, an inner clamping groove used for clamping and fixing the clamp spring is formed in the inner wall of the quick-release unit, the outer clamping groove corresponds to the inner clamping groove, part of the clamp spring is located on the outer clamping groove, and part of the clamp spring is located on the inner clamping groove; the clamp spring is provided with an opening.

Furthermore, the cross section of the clamp spring is circular or oval.

Furthermore, the clamp spring is made of spring steel materials.

Furthermore, the quick release units are sleeved at two ends of the central shaft, at least one outer clamping groove is arranged at two ends of the central shaft, the outer clamping grooves are distributed along the length direction of the central shaft, at least one inner clamping groove is arranged on the inner wall of each quick release unit, the inner clamping grooves are distributed along the length direction of each quick release unit, and each quick release unit is provided with at least one inner clamping groove corresponding to one outer clamping groove.

Furthermore, the inner clamping groove is an annular groove extending in the same direction as the clamp spring, the clamp spring is embedded in the inner clamping groove, and part of the clamp spring extends out of the inner clamping groove.

Furthermore, the cross section of the outer clamping groove is arc-shaped or V-shaped.

Furthermore, the outer clamping groove comprises at least one arc-shaped section extending along the circumferential direction of the central shaft, the arc-shaped sections are distributed along the circumferential direction of the central shaft at intervals, and the arc-shaped sections are all located on the extension line of the outer clamping groove.

Further, the outer clamping groove is an annular groove extending along the circumferential direction of the central shaft.

Furthermore, the cross section of interior draw-in groove is square, the outer wall laminating of jump ring interior draw-in groove's inner wall.

Furthermore, the quick-release unit is a quick-release side cover or a cylindrical shaft side cover.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model provides a quick detach formula bicycle axletree, its simple structure, convenient to use when needs are changed quick detach unit (quick detach type side cap or bobbin type side cap promptly), need not change fast with the help of the instrument, labour saving and time saving, and is convenient, swift. And through jump ring with quick detach unit and center pin connection, connection stability is good, avoids droing of quick detach unit, has improved the stability that the bicycle was ridden.

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram in the prior art provided by the present invention;

FIG. 2 is a schematic view of a preferred embodiment of the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is a schematic view of a mandrel in a preferred embodiment of the present invention;

FIG. 5 is a schematic view of a mandrel according to another preferred embodiment of the present invention;

fig. 6 is a side view of a portion of a central shaft of another embodiment of the present invention;

fig. 7 is the clamp spring structure schematic diagram provided by the utility model.

Reference numbers in the figures:

1. a central shaft; 200. an axle assembly; 201. a flower drum; 202. a ratchet wheel set; 300. a quick release unit; 2. a quick release type side cover; 3. a cylindrical shaft type side cover; 4. a clamp spring; 5. an outer clamping groove; 6. an inner clamping groove; 7. an arc segment.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 2 and fig. 7, a quick release bicycle axle includes a central shaft 1, an axle assembly 200 and a quick release unit 300, wherein the axle assembly 200 is sleeved on the central shaft 1, the quick release unit 300 is sleeved on the end of the central shaft 1, and a snap spring 4 extending along the circumference of the central shaft 1 is disposed between the central shaft 1 and the quick release unit 300;

an outer clamping groove 5 for clamping the clamping spring 4 is formed in the outer wall of the central shaft 1, an inner clamping groove 6 for clamping the clamping spring 4 is formed in the inner wall of the quick release unit 300, the outer clamping groove 5 corresponds to the inner clamping groove 6, part of the clamping spring 4 is located on the outer clamping groove 5, and part of the clamping spring 4 is located on the inner clamping groove 6; an opening is formed in the clamp spring 4. The outer wall of center pin 1 and quick detach unit 300's inner wall is the smooth surface, draw-in groove 6 including embedded outward flange of jump ring 4, quick detach unit 300 cup joints on center pin 1, quick detach unit 300 is at the in-process of suit center pin 1, jump ring 4 removes along 1 outer wall of center pin, when removing the outer draw-in groove 5 that corresponds on center pin 1, jump ring 4 inlays on outer draw-in groove 5 through its elastic force card, and the inboard edge of jump ring 4 is located outer draw-in groove 5, quick detach unit 300 passes through jump ring 4 stable connection with center pin 1, when pulling out quick detach unit 300, jump ring 4 is under the common atress of draw-in groove 6 and outer draw-in groove 5 including, open to both sides through the opening, make the inboard of jump ring 4 break away from outer draw-in groove 5, thereby realize pulling out quick detach unit 300.

Axle subassembly 200 includes hub 201 and ratchet group 202 of suit at 1 middle part of center pin, and quick detach unit 300 is installed at the both ends of center pin 1, and quick detach unit 300 is detachable quick detach type side cap 2 or bobbin type side cap 3, and quick detach type side cap 2 and bobbin type side cap 3 can trade the installation in the use, promptly, quick detach type side cap 2 is all installed at the both ends of center pin 1, or bobbin type side cap 3 is all installed at the both ends of center pin 1.

The clamp spring 4 is made of a spring steel material, so that the strength of the clamp spring 4 is ensured, the stability of connection of the clamp spring 4 with the inner clamping groove 6 and the outer clamping groove 5 is ensured, certain elasticity is achieved, the quick release unit 300 can be conveniently pulled out from the central shaft 1, and replacement of the quick release unit 300 is achieved.

In addition, the quick release unit 300 is sleeved at both ends of the central shaft 1, at least one outer clamping groove 5 is arranged at both ends of the central shaft 1, the outer clamping grooves 5 are distributed along the length direction of the central shaft 1, at least one inner clamping groove 6 is arranged on the inner wall of the quick release unit 300, the inner clamping groove 6 is distributed along the length direction of the quick release unit 300, and at least one inner clamping groove 6 of each quick release unit 300 corresponds to one outer clamping groove 5.

In this embodiment, two ends of the central shaft 1 are respectively provided with an external locking slot 5, the inner walls of the quick release units 300 are respectively provided with an internal locking slot 6, the quick release units 300 are sleeved on the central shaft 1, and the internal locking slots 6 correspond to the external locking slots 5.

In other embodiments, two ends of the central shaft 1 may be provided with 2 or more external locking grooves 5, the inner wall of the quick release unit 300 may also be provided with 2 or more internal locking grooves 6, the quick release unit 300 is sleeved on the central shaft 1, and at least 1 internal locking groove 6 corresponds to 1 external locking groove 5, so as to increase the stability of the connection between the quick release unit 300 and the central shaft 1.

In this embodiment, the cross section of jump ring 4 is circular or oval, interior draw-in groove 6 be with the ring channel of jump ring 4 syntropy extension, jump ring 4 embedded in interior draw-in groove 6, part jump ring 4 extends to outside interior draw-in groove 6, the cross section of interior draw-in groove 6 is preferably square, the laminating of the outer wall of jump ring 4 the inner wall of interior draw-in groove 6 ensures that jump ring 4 can be stably embedded in interior draw-in groove 6.

In order to ensure that the clamp spring 4 can be smoothly clamped and embedded with the outer clamping groove 5 when moving on the central shaft 1, the cross section of the outer clamping groove 5 is arc-shaped or V-shaped (as shown in fig. 6), and is preferably arc-shaped.

As shown in fig. 4, in this embodiment, the outer card slot 5 includes at least one arc-shaped segment 7 extending along the circumferential direction of the central shaft 1, the arc-shaped segments 7 are distributed at intervals along the circumferential direction of the central shaft 1, the plurality of arc-shaped segments 7 are all located on an extension line of the outer card slot 5, the clamp spring 4 is fittingly embedded in the outer card slot 5, and the inner side of part of the clamp spring 4 is located in the arc-shaped segment 7.

In another embodiment, as shown in fig. 5, the external locking groove 5 is an annular groove extending along the circumference of the central shaft 1.

The side of jump ring 4 is the platykurtic, and quick detach unit 300 is in the in-process that cup joints with center pin 1, and the flat part of jump ring 4 side presss from both sides tight center pin 1's outer wall all the time.

When using, predetermine jump ring 4 in the interior draw-in groove 6 that the inner wall of quick detach type side cap 2 was equipped with, cup joint quick detach type side cap 2 on center pin 1 along 1 tip of center pin again, when interior draw-in groove 6 corresponds with outer draw-in groove 5, jump ring 4 joint realizes being connected of quick detach type side cap 2 and center pin 1 on outer draw-in groove 5. When the quick detach type side cap 2 is demolishd to needs, when changing section of thick bamboo axle type side cap 3, only need manual extracting to demolish quick detach type side cap 2, the section of thick bamboo axle type side cap 3 that is equipped with jump ring 4 with the inner wall again cup joints on center pin 1, can accomplish fast and change the process, and simple and convenient need not improve the impression of riding of bicycle with the help of the instrument.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims

1. A quick-release bicycle axle is characterized by comprising a central shaft, an axle assembly and a quick-release unit, wherein the axle assembly is sleeved in the middle of the central shaft, the quick-release unit is sleeved at the end part of the central shaft, and a clamp spring arranged along the circumferential direction of the central shaft in an extending manner is arranged between the central shaft and the quick-release unit;

2. The quick release bicycle axle of claim 1 wherein the cross-section of the clamp spring is circular or elliptical.

3. The quick release bicycle axle of claim 1 wherein the clamp spring is made of spring steel.

4. The quick release bicycle axle according to claim 1, wherein the quick release units are sleeved on both ends of the central shaft, at least one outer locking groove is formed on both ends of the central shaft, the outer locking grooves are distributed along the length direction of the central shaft, at least one inner locking groove is formed on the inner wall of each quick release unit, the inner locking grooves are distributed along the length direction of each quick release unit, and at least one inner locking groove corresponds to one outer locking groove.

5. The quick release bicycle axle according to claim 1, wherein the inner locking groove is an annular groove extending in the same direction as the snap spring, the snap spring is embedded in the inner locking groove, and a portion of the snap spring extends out of the inner locking groove.

6. The quick release bicycle axle of claim 5 wherein the cross-section of the external locking slot is arcuate or V-shaped.

7. The quick release bicycle axle of claim 6 wherein the outer locking notch comprises at least one arc segment extending circumferentially along the central axis, the arc segments being circumferentially spaced apart along the central axis, and a plurality of the arc segments being located along the extension of the outer locking notch.

8. The quick release bicycle axle of claim 6 wherein the external snap groove is an annular groove extending circumferentially along the central axis.

9. The quick release bicycle axle of claim 5 wherein the cross section of the inner clamping groove is square, and the outer wall of the clamp spring is attached to the inner wall of the inner clamping groove.

10. The quick release bicycle axle of claim 1 wherein the quick release unit is a quick release type side cover or a spool type side cover.