CN209972688U - Bicycle quick-dismantling structure - Google Patents

Abstract

A bicycle quick-release structure comprises a quick-release rod, a shaft handle and a pin, wherein the quick-release rod is provided with a rod body and an end cover, the rod body is axially provided with a shaft hole, the end cover is provided with a cutting groove and a through hole which is radially arranged and penetrates through the cutting groove, and the cutting groove can be communicated with the shaft hole; the shaft handle is provided with a handle body and a long slotted hole arranged along the axial direction of the handle body, and the handle body can pass through the cutting groove and be contained in the shaft body, so that the long slotted hole can correspond to the through hole; after the through hole is penetrated by the pin, the shaft handle is pulled out from the shaft body, the shaft handle can be abutted against the long groove hole by the pin without falling out of the shaft body and can be abutted against the cutting groove, and the shaft handle is pulled to drive the shaft body to rotate, so that the wheel can be quickly detached or fixed on the fork structure.

Description

Bicycle quick-dismantling structure

Technical Field

The utility model relates to a bicycle; in particular to a bicycle quick-release structure which can be quickly disassembled to take down wheels.

Background

There are many types of bicycles, and the axle type quick release structure for passing through the hub of the wheel and being combined with the front fork or the rear fork of the bicycle frame is different. In the case of a mountain bike or a downhill bike, a relatively high impact resistant shaft needs to be used to bear a large impact force during riding, as compared with a road bike, and an external thread section is usually provided at one end of such a shaft, and is locked into a screw hole on a front fork or a rear fork of a frame to strengthen the stability of the combination and increase the impact resistance. The other end of the shaft lever is an operation end combined with a wrench, and the wrench can drive the shaft lever to rotate so as to drive the external thread section of the shaft lever to be screwed or unscrewed relative to the screw hole on the frame, thereby realizing the purpose that the wheel can be quickly detached or fixed on the frame. However, the operating end of the axle is operated by a wrench, and after the wheel is firmly mounted on the frame, the wrench is often rotated to an improper position, which is likely to interfere with surrounding components, resulting in safety problems in riding.

In order to solve the above-mentioned problems, the inventor developed an improved quick release structure, please refer to the quick release structure capable of hiding the driving handle disclosed in TWI622515, in which the driving handle has guide slots for accommodating the retaining members at both sides thereof, so that the driving handle can slide in the length ranges of the front and rear ends of the guide slots, and the rear end of the guide slots is limited by the retaining members so that the driving handle cannot be separated, and the driving handle can rotate left and right by using the steel balls of the retaining members as a rotating shaft, so that the shaft rod can be rotated left and right to control the screw or unscrew from the screw hole on the front fork or the rear fork of the frame.

With the above structure, although the safety problem generated by the wrench type quick-release structure can be improved, there are problems of too many parts, high manufacturing cost and difficult assembly.

Disclosure of Invention

In view of the above, an object of the present invention is to provide a quick release structure for a bicycle, which not only reduces the number of parts, but also reduces the manufacturing cost and simplifies the assembly.

In order to achieve the above objects, the present invention provides a quick release structure for a bicycle, which comprises a quick release rod, a shaft handle and a pin. The quick release rod has a rod body and an end cap, the rod body is provided with a shaft hole along the axial direction, the end cap is provided with a cutting groove and a through hole communicated with the cutting groove, and the cutting groove is communicated with one end of the shaft hole; the shaft handle is provided with a long slot hole penetrating through a handle body, and the handle body penetrates through the cutting groove and is contained in the shaft hole; the pin is inserted through the through hole and the slot; therefore, when the shaft handle is pulled out, the long slot hole can be abutted against the pin, so that the shaft handle is not separated from the cutting groove, and the shaft handle can be wrenched.

Wherein the end cap is detachably disposed on the exterior of one end of the shaft.

Wherein, the pole body is provided with an external thread section, the end cover is provided with a screw hole, and the external thread section is locked in the screw hole.

The quick release structure of the bicycle comprises a clamping piece which penetrates through the end cover, and one end of the clamping piece is abutted to the surface of the rod body.

Wherein the end cap has a screw hole, and the retaining member includes a bolt locked into the screw hole of the end cap.

Wherein, the rod body and the end cover are integrally formed.

Wherein, the bicycle quick-release structure comprises a positioning structure for limiting the shaft handle to slide outward relative to the quick-release rod.

Wherein, the positioning structure comprises at least one convex part and at least one concave part, one of the convex part and the concave part is arranged on the mandrel, and the other one is arranged on the inner wall of the end cover cutting groove.

The shaft handle is provided with a handle head connected to one end of the handle body, one of the at least one convex part and the at least one concave part is arranged on the handle head of the shaft handle, and the handle body can penetrate into the shaft hole of the quick release rod.

The positioning structure comprises at least one positioning hole and at least one positioning block, the mandrel is provided with the at least one positioning hole, and the at least one positioning block is made of a material capable of being deformed by pressure, is arranged in the at least one positioning hole and partially protrudes out of the positioning hole.

The utility model has the effects that when the shaft handle is pulled out outwards, the shaft handle is pulled and rotated by taking the pin as a pivot, so that the shaft handle is driven easily to drive the quick-release rod to rotate, and the wheel is detached from the frame or assembled on the frame.

Drawings

Fig. 1 is a perspective view of a bicycle quick release structure according to a preferred embodiment of the present invention.

Fig. 2 is an exploded view of fig. 1.

FIG. 3 is a partial cross-sectional view of FIG. 1, revealing the location of the mandrel.

FIG. 4 is a cross-sectional view illustrating the coupling of the quick release structure and the fork of the bicycle.

FIG. 5 is a sectional view showing the structure when the mandrel is pulled out.

FIG. 6 is a cross-sectional view showing the change of the swing direction by the rotation of the handle when the handle is pulled out.

Detailed Description

In order to explain the present invention more clearly, the following detailed description will be given with reference to the accompanying drawings. Referring to fig. 1 to 3, a bicycle quick release structure 100 according to a first preferred embodiment of the present invention includes: a quick release lever 10, a shaft 20, a pin 30, a retaining member 40 and a positioning structure 50. The quick release lever 10 has a shaft 12 and an end cap 14, the quick release lever 10 has a shaft hole 16 disposed along the long axis direction of the shaft 12, an external thread section 122 is formed on one end of the surface of the shaft 12, and the other end of the surface of the shaft 12 is detachably coupled to the front fork or the rear fork of the frame, in this embodiment, the structure for detachably coupling the shaft 12 to the front fork or the rear fork of the frame includes a thread section 124 formed on the other end of the shaft 12 opposite to the external thread section 122, and the front fork or the rear fork of the frame is provided with a screw hole, please match fig. 4, in this embodiment, it is exemplified that the rear fork 60 has the screw hole 62 to be screwed with the thread section 124.

The end cap 14 of the quick release rod 10 is provided with a slot 141 and a screw hole 142 from the top and bottom surfaces, respectively, in the axial direction, and the slot 141 and the screw hole 142 are connected through a through hole 143; the external threaded section 122 at one end of the shaft 12 is locked into the threaded hole 142 and is integrally connected to the end cap 14. The end cap 14 further has a screw hole 144 and a through hole 145 radially disposed, wherein the screw hole 144 is located below the groove 141 and communicates with the screw hole 142, and the through hole 145 communicates with the groove 141, when the shaft 12 and the end cap 14 are integrally connected, the shaft 12 and the end cap 14 can be firmly connected by the fastening member 40, such as a bolt, being locked into the screw hole 144 and one end of the fastening member 40 abutting against the external thread section 122 of the shaft 12.

The quick release lever 10 of the above embodiment is composed of two parts, a lever body 12 and an end cap 14, but in other implementations, the lever body and the end cap may be integrally formed.

The shaft 20 is movably disposed in the shaft hole 16 of the shaft 12 and has a stem 22 and a crown 24 connected to one end of the stem 22. The handle 22 has a long slot 222 disposed along the long axis and penetrating the body of the handle 22, the handle 22 is inserted into the shaft hole 16 of the quick release lever 10, the pin 30 passes through the through hole 145 of the end cap 14 and simultaneously passes through the long slot 222, so that the shaft 20 can only move in the distance between the two ends of the long slot 222, the pin 30 and the through hole 145 may be matched in a tight fit manner to prevent the pin 30 from accidentally falling off, and may be configured in a screw manner or in an adhesion manner.

The positioning structure 50 in the present embodiment is composed of at least one positioning hole 52 and at least one positioning block 54, wherein the number of the positioning holes 52 and the positioning blocks 54 is two, the positioning hole 52 is disposed on the crown 24, and the positioning block 54 is made of a material that can be deformed by pressure, such as but not limited to rubber. The positioning block 54 is plugged into the positioning hole 52, and two ends of the positioning block 54 are exposed out of the positioning hole 52, when the shaft 20 is inserted into the shaft hole 16 and the crown 24 of the shaft 20 is correspondingly located in the cut-out groove 141, the two ends of the positioning block 54, which are exposed, abut against the inner wall of the cut-out groove 141 and deform due to being squeezed, so as to generate a large frictional resistance, and the shaft 20 is not loosened relative to the quick release lever 10.

The above is a description of the structure of the bicycle quick release structure 100 according to the preferred embodiment of the present invention, and the following description is provided for the following purposes.

Fig. 4 shows the bicycle quick release structure 100 in a normal state, in which the wheel of the bicycle is firmly coupled to the frame of the bicycle by the bicycle quick release structure 100, in this state, the shank 22 of the shaft 20 is inserted into the axle hole 16, the crown 24 of the shaft 20 is correspondingly located in the cut-out 141, and the pin 30 is located at the end of the slot 222 close to the crown 24.

Fig. 5 shows that the user pulls the shank 20 outward relative to the quick release lever 10, and when the user moves to the end of the slotted hole 222 away from the crown 24 to abut the pin 30, the shank 20 cannot be disengaged relative to the quick release lever 10. Then, the user uses the pin 30 as a fulcrum and the split groove 141 as a moving space to move the shaft handle 20 up or down to the state shown in fig. 6, so that an included angle is formed between the shaft handle 20 and the axis of the quick release lever 10, and then the user turns the shaft handle 20 clockwise or counterclockwise to push the quick release lever 10 to rotate by the handle body 22 of the shaft handle 20 abutting against the inner wall of the split groove 141, so that the external thread section 122 of the shaft body 12 of the quick release lever 10 can be released from the screw hole 62 of the rear fork 60, and the bicycle quick release structure 100 can be removed to continue the detaching operation of the bicycle wheel.

To sum up, the utility model discloses a long slot hole of axostylus axostyle can support by the design that leans on in the round pin when pulling out the axostylus axostyle, orders about to rotate the axostylus axostyle and reach the wheel and tear open fast or be fixed in the frame, not only simplifies the spare part of equipment, does to let the assembling process more simple and convenient, and also more saves on the manufacturing cost, lets the product have more competitive advantage.

The above description is only a preferred embodiment of the present invention, and all equivalent changes and modifications to the application of the present invention and the claims should be considered to be included in the scope of the present invention.

Description of the reference numerals

[ the utility model ]

Quick release structure for 100 bicycles

10 quick-release rod

12 shaft 122 external thread segment 124 threaded segment

14 end cap 141 with a slot 142

143 through hole 144 screw hole 145 perforation

16 axle hole

20 axle handle

22 handle body 222 long slot hole 24 handle head

30 pin

40 catch

50 positioning structure

52 positioning hole and 54 positioning block

60 rear fork

62 screw hole

70 hub

Claims (10)

1. The utility model provides a bicycle rapid disassembly structure, characterized by contains:

the quick-release rod comprises a rod body and an end cover, wherein one end of the rod body is connected with the end cover, the end cover is provided with a cutting groove and a through hole which is arranged in the radial direction and communicated with the cutting groove, the rod body is provided with a shaft hole which is arranged along the axial direction, and one end of the shaft hole is communicated with the cutting groove;

a shaft handle movably inserted into the shaft hole of the shaft body, the shaft handle having a handle body, the handle body having a slot hole penetrating the body of the handle body; and

a pin passing through the through hole of the end cap and the long slot of the shaft;

therefore, when the shaft handle is pulled out outwards and one end of the long groove hole of the shaft handle is abutted to the pin, the shaft handle can be rotated in the cutting groove to change the swinging direction.

2. The quick release structure for bicycles of claim 1, wherein the end cap is detachably fitted over an end of the shaft.

3. The quick release structure for bicycles of claim 2, wherein said shaft has an external threaded section and said end cap has a threaded hole into which said external threaded section is locked.

4. The quick release structure for bicycles of claim 2, comprising a retaining member passing through the end cap and having one end abutting the surface of the shaft.

5. The quick release structure for bicycles of claim 4, wherein the end cap has a threaded hole, and the retaining member comprises a bolt locked into the threaded hole of the end cap.

6. The quick release structure for bicycles of claim 1, wherein the shaft is integrally formed with the end cap.

7. The quick release structure for bicycles of any one of claims 1 to 6, comprising a positioning structure for limiting the sliding out of the shaft lever relative to the quick release lever.

8. The quick release structure for bicycles of claim 7, wherein the positioning structure comprises at least one protrusion and at least one recess, one of the at least one protrusion and the at least one recess is disposed on the shaft, and the other is disposed on the inner wall of the end cap slot.

9. The quick release structure for bicycles of claim 7, wherein the shaft has a crown connected to one end of the stem, one of the at least one protrusion and the at least one recess is provided on the crown of the shaft, and the stem can be inserted into the shaft hole of the quick release lever.

10. The quick release structure for bicycles of claim 7, wherein the positioning structure comprises at least one positioning hole and at least one positioning block, the shaft handle has the at least one positioning hole, and the at least one positioning block is made of a material that can be deformed by compression and is disposed in the at least one positioning hole and partially protrudes out of the positioning hole.

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